Flatbed truck for mining

High Quality Vertical Vacuum Packaging Machine

Vertical vacuum packaging machine is suitable for the industry (such as: large packaging food raw materials, jujube, walnut kernels, pine nuts, electronic products, seaweed products anti-oxidation, etc.). This model, the vacuum chamber volume is large, the bag mouth is sealed. Can be packaged with the product (eg barrel, box). Place it directly in the vacuum chamber to complete the vacuum sealing of the inner bag. Open door type operation, easy to put heavy objects on hold.

Vertical vacuum packaging machine is made of plastic or plastic aluminum foil film for liquid, solid, powdery paste food, grain, fruit, pickles, preserved fruits, chemicals, medicinal materials, electronic components, precision instruments, rare metals, etc. Vacuum packaging, vacuum-packed items can prevent oxidation, mildew, insects, decay, moisture, and extend the shelf life. It is especially suitable for tea, food, medicine, shops, research institutions and other industries. It has the advantages of beautiful appearance, compact structure, high efficiency and easy operation.

How To Operate A Medium Concrete Mixer?

1. The fixed-type medium concrete mixer should be installed on a solid platform. When it is fixed for a long time, an anchor bolt should be embedded. In short-term use, a wooden pillow should be laid on the machine base and leveled. It is strictly prohibited to use tires as a support.

2. The console of the fixed medium concrete mixer should allow the operator to see the working conditions of each part. The console of the electric mixer should be covered with rubber plates or dry wooden boards.

3. The parking position of the mobile medium concrete mixer should be a flat and solid site, and there should be a good drainage ditch around it. After it is in place, the legs should be lowered to raise the rack to a horizontal position, so that the tires are off the ground. When it is longer, the tires should be removed and stored properly, the ends of the axles should be wrapped with oilcloth, and the frame should be cushioned and supported with sleepers.

4. For mixers that need to be equipped with a hopper pit, the pit opening should be tamped to prevent ground water from flowing into the pit. The bottom support surface of the loading track rack should be tamped or paved. The back of the track rack should be made of wood. Support to prevent track deformation during operation.

5. When the hopper is placed in the lowest position, a layer of cushioning wood should be added between the hopper and the ground.

6. Before operation, the medium concrete mixer should be started under no-load operation, and the rotation direction of the mixing drum or blade should be consistent with the direction indicated by the arrow on the cylinder. For the mixer with reverse discharge, the mixing drum should be run in the forward and reverse directions. For several minutes, it should work without shock and vibration and abnormal noise.

7. Before operation, the hopper lifting test should be performed, and the clutch and brake should be observed and confirmed to be flexible and reliable.

8. The consistency between the indicated water volume of the water supply system and the actual water volume should be checked and corrected. When the error exceeds 2%, the leak point of the pipeline or the throttle should be corrected.

9. The specifications of the aggregate shall be checked and shall be consistent with the performance of the mixer, and shall not be used beyond the permitted range.

10. After the medium concrete mixer is started, the mixing drum should be loaded after reaching the normal speed. Water should be added in time when loading. The mix added each time shall not exceed the rated capacity of the mixer and the phenomenon of sticking the materials to the tank shall be reduced. The order of the feed shall be stone-cement-sand or sand-cement-stone.

Common Faults And Troubleshooting Of Air Leg Rock Drill

1. Main reasons for lower drilling speed of air leg rock drill:

The main reasons for the reduction of drilling speed are low pressure in the working environment, poor lubrication of the machine, insufficient thrust of the gas legs, poor expansion, large recoil of the machine, poor water passage, running water and washing hammer, wear of the main components, and there are also two or more reasons caused by the cross. For the failure of drill speed reduction, must carefully observe, comprehensive analysis.

2. Troubleshooting of air leg rock drill:

Fault caused by low working pressure of air leg rock drill. The elimination method is as follows: to calculate whether the pressurized gas line is overloaded, the number of working machines can be reduced according to the actual situation, or other gas consumption operation items can be reduced. Eliminate the factors of reducing pressure caused by pipeline leakage, check and remove leakage pipeline and joint.

Failure of pneumatic leg rock drill due to poor lubrication. Its eliminate method: oiler oil path small hole is blocked, should clean after blow through with pressure air. The fault caused by insufficient thrust of air leg and poor expansion. To replace or reassemble the worn or loose air leg rubber bowl, the frame body and the thread of the outer pipe are not tightly connected, and the upper and lower cavities should be tightened if gas passes through them. Damaged or lost seals should be replaced in time. Plate machine wear, compression valve is not working, the air leg is not easy to contract, should be replaced. For water pressure higher than air pressure, resulting in pressure water back flow to the machine, damage the normal lubrication phenomenon, to take the measures to reduce pressure, the main parts do not conform to the standard to replace.

Why Is The Mortar Spraying Machine Market Demand

Mortar spraying machine with the economic development of the market situation is getting better and better, there is no lack of reasons for the development of the construction industry, but the development of the mortar spraying machine is certainly more than this one reason, today we will talk about why the mortar spraying machine is needed by the market.

First of all, people in the 1960s and 1970s have begun to grow old, while consumers born in the 1980s and 1990s have grown up in the era of the Internet, and their consumption habits and aesthetics are different from those in the 1960s and 1970s. Young people have a stronger sense of independence and freedom, and they are more in pursuit of fashionable products. So young people become a mortar spraying machine to buy the main force.

In addition, because of mortar spraying and basically no landing ash, save water, save material, can reduce the cost of more than 20%. Multi-function, can spray almost all paste material, liquid material. Fast speed, high efficiency, low labor intensity, a mortar spraying machine per hour can easily spray 150㎡, excluding the preparation time, work every day 8 hours, can spray 1000㎡ above, equivalent to 20 skilled workers a day's workload. The investment is small, the income is big, the present society labor cost is high, the mortar spraying machine can reduce the labor cost effectively, conforms to the current social popular trend.

At last, the mortar spraying machine is equipped with a large capacity hopper and adopts a strong and stable intelligent hydraulic system to control the mechanical blanking. In terms of the spraying machine's material supply, the blanking speed and blanking continuity are greatly improved compared with the artificial blanking which is often affected by human body function. The improvement of efficiency indicates that it takes less time to complete the spraying of the same amount of work, which also conforms to the current people's pursuit of high efficiency.

The Future Of Mobile Food Cart

I believe that the development of mobile food cart is a major topic for all users to pay attention to, because with the emergence of the new energy industry, the country also vigorously support the new energy industry, so its development is a good situation.

The multi-functional mobile food cart has powerful functions, mobile food cart can be compared with a snack bar. It has everything, whether you want to eat mutton kebabs or barbecued pork buns, all of them are available. Two. The mobile food truck is convenient to operate, two people can be a person. Three. Mobile food truck mobility, such a restaurant car to where the welcome, eat snacks can at any time at the restaurant car waving, delicious food waving, it is too convenient! Four. The appearance of the multi-functional electric dining car is good, with comfort, on the roadside is also a beautiful scenery.

Small mobile food cart is suitable for most start-up users, and can also be used for food delivery and other snacks, snacks and other business use. The use of mobile food truck is simple and convenient with low cost. When user friend is choosing a car, can consult the structure below choose and buy small skill. Now living standard progress, more and more young people began to love electric four-wheel snack car food, electric four-wheel snack car in China's catering industry has a good market, electric four-wheel snack car throughout the use of many entrepreneurs brought good economic benefits.

Railway Rubber Crossing Board

Technical Features Of Gasoline Rock Drill

A gasoline rock  drill is a tool used to extract rock directly. It drilled holes in the rock so that it could put explosives into the rock to break it down, thus completing the quarrying of stone or other quarries. In addition, the drill can also be used as a wrecker to break up hard layers such as concrete.

Technical features of gasoline drill

1) when the engine is pneumatic, gently pull the starting rope after the ratchet mechanism is engaged. Pull the start rope in the right direction and don't push too hard to prevent the start rope from pulling out.

2) when the gasoline rock  drill is started with drill pipe, the handle clutch is not allowed to turn to the rotary position.

3) always pay attention to whether there is any blockage in the center hole of the fiber rod to prevent the machine from shutting down.

4) in order to protect the rotary mechanism, the machine should not be overcharged.

5) the internal combustion gasoline rock  drill is fueled by gasoline and can work independently with oil without any auxiliary equipment. Easy to carry.

Petrol drill equipment applications include building demolition, and geological exploration drilling and ground engineering, and the cement road, asphalt road surface all kinds of splitting, the function such as crushing, tamping, gouge, more suitable for all kinds of mining blasting mining, drilling, fracturing, all products are strive to provide the highest possible at the lowest maintenance cost efficiency.

How To Improve The Efficiency Of Medium Concrete Mixer?

Because the pressure of a Medium concrete mixer rises slowly, the filter is usually clogged and should be cleaned regularly. The second is the problem with the cylinder, because there is leakage outside the cylinder. Water-stable mixing stations are often painful for piston rod equipment, lack of lubricant supply, wear or damage to seals and seals, impurities in the cylinder and scratches on the piston rod.

We need to adjust the middle position of the piston rod in time, regularly check the reliability of the oil mist device, and clean it up in time. Due to the advancement of the first conductive magnetic valve, the valve failed, and the type of vent hole was simply blocked, resulting in a seal. The active valve will get stuck in a circuit failure. In the use of Medium concrete mixer, we can adopt the closed design of the whole station. The pressure of the mixing station increases the isolation plate and the isolation chamber of the concrete mixing station.

In addition, the noise source of the Medium concrete mixer is mainly for mixing the main machine. The main problem of the noise of the mechanical equipment is the mutual accuracy of the machine itself, improving its own production level and technical level, and improving the manufacturing accuracy of the main body, tank and other locations. A feasible and perfect processing scheme is proposed to minimize the gap between equipment parts, especially the distance between the blade and the lining in the main mix. As far as possible, the drum prevents the sharp sound from being caught by the stones.

How To Buy A Qualified Ice Cream Maker

An ice cream maker equipment is mainly composed of a compressor, a condenser, an evaporator, a stirring motor, a feed cylinder, etc., where the compressor device is the core accessory of the entire ice cream maker equipment. So, how should a buyer purchase a qualified ice cream machine? Here are some of the popular science needs to pay attention to when choosing ice cream.

First, the expansion rate of the ice cream maker. Generally speaking, the expansion rate of an ice cream maker mainly depends on whether the quality of the compressor is qualified. A good compressor will often shorten the ice cream production time and at the same time reduce the cost of use.

Second, the freezing performance of the ice cream maker. The freezing performance of an ice cream machine is inseparable from the freezing machine. At present, the configuration of the ice cream machine on the market often uses a continuous freezing machine.

Third, the homogenizer of the ice cream maker. The quality of the homogenizer will affect the ice cream produced. The taste of the ice cream produced by a good homogenizer is smoother. Currently, most of the homogenizers used are bipolar high-pressure homogenizers.

Fourth, the failure rate of ice cream maker. Generally speaking, the merchant will not tell you exactly what the failure rate of this ice cream machine is. At this time, it is the buyer’s own judgment, but what is certain is that big brand ice cream machines are generally guaranteed, so When buying ice cream maker, try not to try to get cheap and buy those Sanwu products.

Fifth, the sterilizer of the ice cream maker. If the sterilization effect of a machine is good, the heating time of the mixture is short, and the quality of the ice cream is not bad. At present, high-temperature short-term pasteurization devices are often used on the market.

Sixth, the output of ice cream maker. This is where choosing an ice cream maker machine should be valued. Production represents productivity, and buyers of course prefer machines with high output.

Single Hydraulic Prop High Quality

Factors Affecting The Life Of Air Leg Rock Drill

Lubrication has a great influence on the performance and service life of the air leg rock drill. Air leg rock drills are strictly forbidden to work without oil. It is best not to use grease to lubricate to avoid blocking the machine holes and blocking gas flow, thereby reducing machine efficiency and accelerating parts wear.

The gas pipe of the air leg rock drill has an inner diameter of 25 mm. In order to avoid excessive pressure loss of the pipeline, the length of the gas pipe from the gas source to the machine does not exceed 15 meters, and the diameter of the pipe joint is not less than 20 mm. The working air pressure of the air leg rock drill is one of the factors that directly affect the rock drilling efficiency, economic effect and the service life of parts. The air drilling speed of the air leg rock drill increases with the increase of air pressure, but the air pressure is too high, the vibration of the machine is also large, air leg rock drill is easy to damage the drill, and the parts are also worn fast; the air pressure is too low to fully exert the efficiency of the machine. Therefore, the working pressure of the machine is generally 0.4~0.63Mpa.

The working water pressure of the air leg rock drill should be lower than the working pressure of the value. Excessive water pressure can easily cause the failure of the gas-water linkage structure, and even "wash hammer", damage the lubrication of the machine and other disadvantages. The general working pressure of water pressure is 0.2-0.3 MPa.

Mobile Food Cart Business Booming In Major American Cities

Food vendors and their mobile food cart have become ubiquitous in American cities of Washington D.C., New York, Los Angeles and economists believe wide use of smartphones and social media has played a vital role in advancing the mobile catering business.

Progress of technology and relevant application allow food trucks to broadcast their location information to consumers in real-time, which reduces consumer uncertainty and increases demand for and profitability of food trucks, the economists argued, adding that the growth in food trucks has been associated with increasing interests in smartphones and social media.

Mobile food cart began growing rapidly in the same year that the iPhone was first released in 2007, and the industry revenues increased 50 percent over five years, reaching 1.5 billion U.S. dollars in 2012, the paper said.

"Many of these location related tweets are used to indicate a change of location due to unforeseen circumstances such as parking and traffic difficulties," they said in the paper.

The Washington D.C. metro area is one of the largest markets for food trucks in the U.S. relative to population, and there are about 367 active food trucks operating here, according to FoodTruckFiesta.com, a real-time automated D.C. food truck tracker.

Anenberg and Kung also noted that mobility has become an advantage for food trucks over brick-and-mortar restaurants as they can serve different consumers each day by switching locations.

"The benefit to being able to serve different locations is that consumers have a taste-for-variety in their day-to-day food consumption and so the food truck can avoid customers which have already been served recently," they said. "With this preference structure, the introduction of mobile technology can make it more profitable to operate as a food truck than a brick-and-mortar, even if the costs of operating are the same."

Mortar Spraying Machine Market Demand

People born after 1980 and after 1990, consumers grew up in the Internet age. In terms of consumption habits and aesthetics, compared to the people who born after 1960 and 1970s had a stronger sense of independence and freedom, and they were more fashionable and personalized. According to our professional analysis, "There are more and more young people buying wall mortar spraying machines now.

In addition, from the current market situation, wall mortar spraying machine enterprises are good at discovering the psychological needs of construction contractors, creating a new brand concept, identifying the market direction, and gaining a heavy place in the vast market. It is the darkness before dawn. It is even the light after dawn. The mortar spraying machine basically has no floor ash, saves water and materials, and can reduce the cost by more than 20%. It has many functions and can spray almost all paste materials and liquid materials. Fast speed, high efficiency, low labor intensity, one (multi-function speed control) spraying machine can easily spray 150m2 per hour, remove the preparation time, work 8 hours per day calculation, can spray more than 1000m2, equivalent to 20 skilled workers Hard work for a day. The investment is small and the income is large. If every day (multi-function speed control) spraying equipment is sprayed 1000m2, according to the average market price of 0.6 USD per m2, the worker's salary is about 71 USD, and each equipment can make a profit of 427 USD per day. Other factors, a year income of more than 71,106 USD, are also expected.

The mortar spraying machine is equipped with a large-capacity hopper and a powerful and stable intelligent hydraulic system to control the mechanical cutting. In the feeding of the spraying machine, the cutting speed and the continuity of the feeding are often affected by the human body function. Compared with qualitative improvement. Thereby reducing the idling rate of the spraying machine and improving the efficiency of the spraying machine, the efficiency of the mortar spraying machine is about 30% higher than that of the manual feeding blasting under the tested conditions. Due to the increase in efficiency, the shot-on time for accomplishing the same amount of work is reduced, thereby reducing the power consumption of the sprayer and the power consumption of the auxiliary equipment in the construction work surface. According to incomplete statistics, it can save about 35% of the electricity for the construction site.

What Are The Outstanding Features Of Gasoline Rock Drills

Gasoline rock drill is a kind of hand-held internal combustion rock drill, which is a hand-held rock drill tool composed of a small gasoline engine, a compressor, and a rock drill. When the gasoline rock drill is in operation, the compressed air produced by itself blows away the rock dust in the blasthole. The main unit weighs only 27KG and is easy to carry. Gasoline rock drill is suitable for areas with high mountains, no power supply, and no wind pressure equipment. Gasoline rock drill is especially suitable for temporary projects with greater mobility.

Gasoline rock drills are suitable for rock drilling and crushing, and are widely used in national defense projects, mining, road construction, urban construction, quarrying and other earth and stone projects. Gasoline rock drill is suitable for rock drilling. If a few parts are replaced, it can be changed into a crusher and tamping machine for various crushing, shoveling, digging, splitting, tamping and other tasks. The hand-held gasoline rock drill can work in high mountains and flat grounds, whether in the extreme heat of +40°C or severe cold areas of -40°C. Gasoline rock drills have a wide range of adaptability.

The gasoline rock drill has the functions of drilling, splitting, crushing, tamping, shoveling, etc. It can drill holes in the rock and can drill vertically downward Z-depth up to six meters. Gasoline rock drills are widely used in mining, road construction, quarrying, and national defense projects. Gasoline rock drill is a machine that integrates rock drilling and crushing. It has a built-in switch to replace rock drilling or crushing work; because gasoline rock drills are powered by gasoline, YN27C cannot be used in gas, flammable and explosive places! The gasoline rock drill is easy to operate, saves time and effort, and has the characteristics of fast drilling speed and high efficiency.

How To Choose A Kitchen Dough Mixer

With the development of people's fast-paced life, most people choose kitchen dough mixers instead of labor productivity, kitchen dough mixer is convenient and affordable. This led to the development of kitchen dough mixers. The expanded reproduction of pasta products cannot rely solely on handwork, so the choice of kitchen dough mixer becomes inevitable. In the face of all kinds of kitchen dough mixers on the market, how should consumers choose?

1. Select the suitable kitchen dough mixer equipment according to your actual situation

Kitchen dough mixers are divided into oval, blade, and paddle types according to the form of twist bars. The model of the noodle maker is different, and the amount of noodles at a time is also different, ranging from 12.5 kg to 200 kg. The steamed buns are usually made with 50 kg, 75 kg, and 100 kg. With the use of different bun machines, round buns and square buns can be made. This requires businesses to position themselves well and choose a kitchen dough mixer suitable for local conditions, so as to get twice the result with half the effort.

2. Pay attention to the after-sales service of kitchen dough mixer manufacturers

The quality of kitchen dough mixers on the market is uneven, and some producers have no confidence in their products and dare not go to the door for maintenance. Therefore, you must pay attention to after-sales issues when you choose. If you have conditions, you must visit the site to see the manufacturer's production scale and strength. Fully consider the equipment, technology, and service issues, and communicate your actual needs with the manufacturer's personnel to buy To the most ideal equipment.

3. Choose a strong manufacturer and brand of kitchen dough mixers

Large-scale kitchen dough mixer manufacturers generally have their own R&D department, which not only produces one product, but also develops such products as steamed bun machines and noodle machines. Choose brand products with strong comprehensive strength to solve the worries.

Buy kitchen dough mixers and other machines for thousands of yuan. It is hoped that merchants must be cautious when buying, and still need regular manufacturers to buy.

The Practicality Of The Steel Arch Support Is Reflected In Those Aspects

The steel arch support is also called mine supporting steel, which is mainly used for supporting mine tunnels and roadways. The steel arch support is a key support in coal mining. The steel arch support plays a vital role in the support technology. The superior performance of the supporting material is a necessary prerequisite for giving full play to the effect of the steel arch support and ensuring the safety of the roadway. 

The steel arch support is a kind of steel with a cross-sectional shape like the English letter "U". The U-shaped steel produced in various countries has different cross-sectional shapes, geometric parameters and materials. Currently, the U-shaped steel models produced in China are mainly U18, U25, U29, U36, these four types. "Do not forget danger, don't forget worry, engineering plan, safety first!" Now that you know the role of steel arch support in mine support, everyone must strengthen it during use Attention, carry out construction operations with the most cautious and attentive attitude!

Shandong China Coal Group specializes in the processing of supporting products for mining supports, bolts, and anchor nets, and the manufacture of mining machinery accessories. With excellent product quality and a comprehensive service system, steel arch supports and other mining products are sold all over the country. The steel arch supports has been tested by the market, and its quality and shipment are among the best in the industry.

Factors Affecting The Life Of Air Leg Rock Drill

Lubrication has a great influence on the performance and service life of the air leg rock drill. Air leg rock drills are strictly forbidden to work without oil. It is best not to use grease to lubricate to avoid blocking the machine holes and blocking gas flow, thereby reducing machine efficiency and accelerating parts wear.

The gas pipe of the air leg rock drill has an inner diameter of 25 mm. In order to avoid excessive pressure loss of the pipeline, the length of the gas pipe from the gas source to the machine does not exceed 15 meters, and the diameter of the pipe joint is not less than 20 mm. The working air pressure of the air leg rock drill is one of the factors that directly affect the rock drilling efficiency, economic effect and the service life of parts. The air drilling speed of the air leg rock drill increases with the increase of air pressure, but the air pressure is too high, the vibration of the machine is also large, air leg rock drill is easy to damage the drill, and the parts are also worn fast; the air pressure is too low to fully exert the efficiency of the machine. Therefore, the working pressure of the machine is generally 0.4~0.63Mpa.

The working water pressure of the air leg rock drill should be lower than the working pressure of the value. Excessive water pressure can easily cause the failure of the gas-water linkage structure, and even "wash hammer", damage the lubrication of the machine and other disadvantages. The general working pressure of water pressure is 0.2-0.3 MPa.

Other Uses Of Mortar Spraying Machine

Mortar spraying machine can not only be used to spray, but also can be used to inject mortar. In addition, mortar spraying machine is commonly known as fast mortar spraying machine because of its efficient spraying speed. Because it can spray cement, it is also called fast cement mortar spraying machine. Because it can spray putty powder, refractory materials, latex paint, fireproof materials, it is also commonly known as multifunctional spraying machine.

Mortar spraying machine is mainly used for plastering powder wall mortar spraying on internal and external walls of buildings, and spraying cement mortar refractory materials. The mortar spraying machine produced by Yuanrong basically has no floor ash, saves water, and saves materials, which can greatly reduce costs, simple and fast operation, high efficiency, and low labor intensity. Mortar spraying machine is a screw-type high-pressure airless spraying machine with advanced technology. It integrates advanced domestic and foreign technologies, based on research and innovation. It is a new type of multifunctional spraying equipment that can be used for mortar spraying and putty on exterior walls in the building industry. Spraying, cement spraying, external wall insulation materials and refractory materials and other building surface large-area spraying, geotechnical engineering large-area spraying, etc., are characterized by no pulse, high pressure, large flow, high efficiency, convenient and safe operation, and this equipment Compact structure, easy to move, easy to maintain, long service life, easy to clean.

The mortar spraying machine is very efficient in terms of work efficiency, and one mortar spraying machine can complete the spraying work of 800 square meters. Secondly, the quality of the mortar spraying machine itself is also well guaranteed. The paint sprayed by this equipment has a relatively high degree of adhesion, and is also relatively strong in terms of firmness. Basically, it does not appear to be empty or reworked.

In addition, the mortar spraying machine is also very cost-effective and time-saving. Basically, a machine can be controlled by only three people. Compared with traditional labor, it not only shortens the completion time of the project to a great extent, but also saves labor costs. You know, with the continuous development of social economy, the main point is that the speed is 3-5 times that of manpower. But mortar spraying machine is still inseparable from the manual to flatten the wall. Use small construction machinery to increase the speed, reduce the labor of workers and save costs.

How To Choose The Right Medium Concrete Mixer?

1. Production scale

Judge the production capacity of Medium concrete mixer according to the scale of production. The annual output is less than 200,000 m?, the concrete mixing equipment productivity is generally not less than 90m?/h; the annual output is 200,000 to 300,000 m?, the concrete mixing equipment productivity is generally 120m?/h; the annual output is more than 300,000 m? The productivity of concrete mixing equipment is generally 150m?/h or 200m?/h.

2. Construction site

According to the size of the construction site, concrete mixing tower or Medium concrete mixer can be selected. The concrete mixing plant is used to increase the aggregates at a time. The productivity of the mixer with the same capacity is higher than that of the mixing plant. The overall shape is neat and beautiful, the material yard occupies a small area, and the production environment is good. However, the manufacturing and installation cycle is long and the one-time investment cost is high. When selecting a concrete mixing plant, the aggregate needs to be lifted twice, the layout is flexible, the manufacturing and installation cycle is short, and the one-time investment cost is low, but the material yard covers a large area and the production environment is poor. 

3. Equipment technical performance

It is mainly considered from several aspects of equipment advancement, reliability, superiority and versatility. The equipment should have the characteristics of advanced working principle, high degree of automation, powerful management function and good environmental performance. The equipment should be equipped with good configuration, reliable control method, strong applicability and good maintainability. In addition, high measurement accuracy, good mixing quality, high production efficiency, low energy consumption, large usage of standard parts, and good interchangeability should also be considered.

Application Characteristics Of Luggage Wrapping Machine

The luggage wrapping machine can be moved. As long as the operator puts the baggage on the pallet, the film can be wrapped and wrapped. The equipment can automatically pack the machine and set the number of layers of packaging to ensure the packaging quality of the product and provide packaging efficiency. It is specially designed and manufactured for the transportation and preservation of luggage items, which can prevent the luggage from being damaged and exchanged. Luggage wrapping machine is widely used in the storage of luggage items such as airport stations.

The luggage wrapping machine is specially designed for airport baggage packing, star-grade hotel baggage packing or small items wrapping packing, etc. It can prevent luggage damage, exchange, damage and other phenomena, so as to protect the luggage during transportation. The equipment of the baggage packing machine can be moved. The operator puts the baggage on the turntable, and the machine automatically adjusts the position of the vertical rod according to the size of the baggage, so that the package can be stably placed on the turntable. Then the operator presses the start button on the operation panel, and the equipment automatically packs, usually the luggage bag (3~5) layer is enough! After packing, then take the luggage!

The luggage wrapping machine has good flexibility and stretchability, and strong wrapping ability. Luggage wrapping machine also has high puncture resistance, high transparency and gloss. Good shrinkage and tightness. The overall stability of the packaged objects is good, which reduces the damage and loose packages during transportation.

What Are The Outstanding Features Of Gasoline Rock Drills

Gasoline rock drill is a kind of hand-held internal combustion rock drill, which is a hand-held rock drill tool composed of a small gasoline engine, a compressor, and a rock drill. When the gasoline rock drill is in operation, the compressed air produced by itself blows away the rock dust in the blasthole. The main unit weighs only 27KG and is easy to carry. Gasoline rock drill is suitable for areas with high mountains, no power supply, and no wind pressure equipment. Gasoline rock drill is especially suitable for temporary projects with greater mobility.

Gasoline rock drills are suitable for rock drilling and crushing, and are widely used in national defense projects, mining, road construction, urban construction, quarrying and other earth and stone projects. Gasoline rock drill is suitable for rock drilling. If a few parts are replaced, it can be changed into a crusher and tamping machine for various crushing, shoveling, digging, splitting, tamping and other tasks. The hand-held gasoline rock drill can work in high mountains and flat grounds, whether in the extreme heat of +40°C or severe cold areas of -40°C. Gasoline rock drills have a wide range of adaptability.

The gasoline rock drill has the functions of drilling, splitting, crushing, tamping, shoveling, etc. It can drill holes in the rock and can drill vertically downward Z-depth up to six meters. Gasoline rock drills are widely used in mining, road construction, quarrying, and national defense projects. Gasoline rock drill is a machine that integrates rock drilling and crushing. It has a built-in switch to replace rock drilling or crushing work; because gasoline rock drills are powered by gasoline, YN27C cannot be used in gas, flammable and explosive places! The gasoline rock drill is easy to operate, saves time and effort, and has the characteristics of fast drilling speed and high efficiency.

What Are The Advantages Of Mobile Food Carts In The Market

Mobile food carts present many advantages in the market. Entrepreneurs do not need to rent a house after operating. At the same time, they operate liquidity. Where there are customers, there will be good business. Therefore, more and more entrepreneurs want to join. Mobile food carts are a pretty good low-cost profitable project. At present, mobile food carts continue to rise in China.

The traditional snack business not only has high rents and expensive decoration costs, but also has high personnel costs and low profits. And mobile food carts do not need a storefront, no rent, no need for a chef, roasting, frying, frying, blanching, and cooking are all done in one cart for breakfast, lunch, and dinner. You can open a snack bar in front of the school by investing only a thousand yuan. The mobile food cart is small and convenient, small and chic, small business, small investment, big profit.

The mobile food cart is not just a cart, it also provides a variety of classic snacks, comparable to a gourmet shop. There are not only barbecue series, boiled series, shabu-boiled series, beverage series, but also hot and sour noodles, hot and spicy noodles, small octopus balls, etc. There is no worries in the business. Whether it is in a night market, a commercial street, or in front of a school, opening a store anytime, anywhere is simple, convenient and fast. Mobile food carts are not limited to locations, seasons, forms, mobile operations, flexible and convenient. For entrepreneurs, grasping business opportunities means grasping success, and act quickly.

Why Mine Roof Supports Are More And More Favored By Customers

Compared with other rigid supports, mine roof supports are more retractable and stable and reliable in carrying capacity. They are mainly used for mine tunnels, secondary support of mine tunnels, and support for mountain tunnels. The mine roof support has a simple structure, but its firmness is very reliable. It is a kind of support equipment favored by consumers.

As a common and common steel, mine roof supports can always see application scenarios of mine roof supports, whether it is bridge engineering or mining sites. The roof support of the mine can adapt to the load and deformation of the soft surrounding rock, with high cross-sectional utilization, convenient support for support, small maintenance, high support recycling rate, reduced use of pit wood, and obvious environmental protection benefits. With the rapid development of society and the rapid development of mining production and construction, the demand for mine roof supports is increasing, causing the market to exceed supply.

The mine roof supports have the advantages of high strength, easy installation, and non-deformation. The use of mine roof supports can effectively reduce the occurrence of roof fall and slabs, safe and reliable, and improve the stability of the mine ventilation system. While ensuring excellent quality, China Coal Group also improves production efficiency as much as possible, so that customers can spend less money to buy the highest quality mine roof supports, and improve cost performance for customers!

How To Properly Operate Water Well Drilling Rig

The water well drilling rig should be inspected before use. First, conduct a geological survey to check whether the rig has secured the end of the wire rope. The inspection content of the wire rope includes: the number of wire rope safety rings, the selection of the wire rope, installation and lubrication, the inspection of the wire rope defects, the diameter and wear of the wire rope, and the number of wire rope breaks. Check the pulley system of the well system at any time. The main inspection items are: the status of the pulley body and the anti-jumping device of the transition pulley. Check the driving system of the water well drilling rig at any time. The main inspection items are: the condition and laying of pile driver, pallet and hook pipe system. Record maintenance and repair of water well drilling rigs, record replacement parts to ensure that parts are used within the service life of water well drilling rigs, or track the next replacement time.

Water well drilling rigs need to accurately measure the distance during the drilling process. Under normal circumstances, the drill bit is changed every 10 meters, the drill pipe is measured once, and the drilling depth is checked. It is necessary to modify it. Look at the gearbox, bushings, vertical axis gears, etc., whether there is overheating, whether there is abnormal sound, if you find the problem, stop in time, find the cause, and stop solving the problem. Very fast and high maintenance fee.

When digging with clean water, do not supply water before digging. In addition, the water can only be drilled after returning. And make sure you have enough traffic. The rock dust in the hole takes a long time, increase the water volume to prolong the use time of the pump, and wait until the hole is drilled before drilling.

Every time the water well drilling rig changes the drilling tools, the drilling platform generally requires a measurement every 10 meters to change the drilling depth. Even if the gearbox, bushings, vertical shaft gears, etc. are overheated, no abnormal sound will be produced. If there is a problem, please stop immediately, investigate the cause and deal with it within time.

Storage Of Cement Plaster Spraying Machine

All newly purchased or allocated cement plaster spraying machine should be kept reasonably to prevent loss, corrosion and damage. According to needs, the general equipment warehouse, branch warehouses and parking lots shall be established step by step, maintenance and management shall be strengthened, account cards shall be established, and material storage shall be done well.

The warehouse of the cement plaster spraying machine should be located in a place with convenient transportation, high dry terrain, and favorable for drainage, and should meet the warehouse management requirements (with fire prevention measures, good ventilation, and equipped with required lifting equipment). According to the different requirements for storage and storage of cement mortar spraying machines, facilities such as open-air garages, indoor warehouses, and thermal insulation warehouses should be built separately.

The cement plaster spraying machine needs to be stored in the warehouse, and the warehouse should be ventilated and dry. Pay attention to dust and rust prevention. If necessary, it should be equipped with dryers, air conditioners and other equipment to maintain constant temperature and humidity. When the large mortar spraying machine that cannot be stored in the warehouse is stored in the open air, the site should be leveled, drained, weeded, and the upper cover and underlaying should be done. The tires should be removed and put in the warehouse or painted with white powder (white crab mortar) to prevent aging. The contents of the water tank and fuel tank are exhausted, and the nozzles and pores are sealed to lubricate the cylinders, and then re-lubrication will be started regularly.

The custody of the cement plaster spraying machine is part of the asset management work, and the custody situation should not be ignored regularly. However, because the storage takes up the time of mechanical utilization, cement plaster spraying machine is advisable to organize the exit of the warehouse to participate in the construction as soon as possible.

The Advantages Of Steel Mine Supports

Compared with other rigid supports, steel mine supports have shrinkage, stable and reliable bearing capacity, adapt to the load and deformation of soft surrounding rock, high cross-section utilization rate, convenient use of steel mine supports, small maintenance, high support reuse rate, and reduce pit wood When used, the environmental protection benefits of steel mine supports are very obvious.

Steel mine supports of mountain tunnels. Steel mine supports has the characteristics of high pressure, long support time, easy installation and no deformation. Taking quality as the life, in addition to earning profits from the industry, the more important thing is that the mine support guarantees the safety of hundreds of coal mines and escorts the life safety of tens of millions of coal miners.

The advantages of steel mine supports are guaranteed by raw materials and directly supplied by large steel mills; the installation is simple and requires no processing; steel mine supports has high shear and tensile strength; the mine supports are evenly stressed; the installation speed is fast, saving materials, saving labor, There are broad prospects for promotion and application.

The Role Of Vacuum Packaging Machine

In addition to the oxygen and quality preservation functions of vacuum packaging machines , it mainly has the functions of anti-stress, gas barrier and freshness. In addition, many foods are not suitable for and must be vacuum inflatable packaging. The vacuum packaging machine can effectively prevent the food from being crushed and deformed under pressure and does not affect the appearance and printing decoration of the packaging bag. Its nitrogen gas can inhibit the growth and reproduction of anaerobic bacteria, keep the freshness and color of fruits and vegetables, and high concentration of oxygen can keep fresh meat. 

Most vacuum packaging machines are externally pumped. As we all know, there are two modes of vacuum packaging. One is vacuum packaging and the other is inflatable packaging. Inflatable packaging will cause the packaging material to expand too much, so this function is not suitable On the machine with a built-in vacuum chamber, the external-extraction vacuum packaging machine has more advantages. Because there is no vacuum chamber in the external pumping vacuum packaging machine, a vacuum nozzle is extended on the side of the machine and placed in a vacuum container to complete the inflation process.

After the vacuum packaging machine reaches the preset inflation value, the machine performs heat sealing. It is necessary to set the heat sealing time on the computer board. Take care not to take too long to avoid damage to the packaging materials. When the preset time is reached, the indicator light is off, then the vacuum chamber is connected to the atmosphere, the cover is lifted, and the inflatable packaging of the vacuum packaging machine is completed.

Daily Maintenance And Maintenance Of The Mixer Before Each Use Of Concrete Mixer

As the core component of the mixing station, concrete mixer plays a very important role in the normal production process of the mixing station, so the daily maintenance and maintenance of the mixer is particularly important. Today, China Coal Group will take you to learn about the daily maintenance of mixers need to pay attention to what issues:

Ⅰ. Items that should be checked before each use of concrete mixer:

1. Check whether the mixer body is stable or not.

2. Whether the connecting bolts on the blade of mixer and the supporting arm of the blade are firm or not.

3. Is the connecting bolt tightened on the feeding rack of the mixer?

4. Whether the pumps are sufficiently diverted and whether the pipelines are unblocked.

Maintenance of concrete mixer is very important. It not only relates to the effect of later construction, but also directly affects the service life. It is also a point needing attention.

Ⅱ. Items to be inspected after each use of concrete mixer:

1.Clean up the inside and outside of mixing drum,unloading door and ash on hopper, and rinse with water.

2.The hopper is parked in the transportation position and the brake pin is inserted well. No sundries are allowed in the hopper.

3.Cut off the power supply and lock the electric control box after mixing.

4.Add necessary lubricating oil (grease) to each lubricating point of mixer as appropriate.

5.The water stored in the water supply system shall be exhausted after the completion of the work.

Precautions For Water Well Drilling Rig

Water well drilling rigs are widely used in large, medium and small mines, hydropower, transportation, national defense projects and other earth and rock excavation and blasting projects, and can also be used for underwater rock drilling and blasting operations such as harbors and waterways. Percussion water well drilling rigs are widely used in large-diameter and deep-hole operations such as water wells, geothermal air conditioning drilling, etc. In order to ensure the normal progress of the project, let me explain to you what aspects should be checked before the water well drilling rig works.

The following aspects should be checked before water well drilling rig operation:

1. Check whether the oil quantity of each fuel tank of the water well drilling rig is sufficient and whether the oil quality is normal. Check whether the gear oil of each reducer is sufficient and whether the oil quality is normal; check for oil leakage failure;

2. Check whether the main rope and auxiliary rope of the water well drilling rig are broken and whether the connection is intact.

3. Check whether the elevator is flexible and whether the internal grease is contaminated.

4. Check the steel bar for strong cracks, rust, hydraulic water well drilling problems, welding and other damage.

The Development Prospect Of Vacuum Packing Machine

The vacuum packing machine puts the food into the packaging bag, extracts the air in the packaging bag, and completes the sealing process after reaching a predetermined vacuum degree. The main function of vacuum packing is to remove oxygen to help prevent food from spoiling. The principle is also relatively simple. Because food mildew and spoilage are mainly caused by the activities of microorganisms, most microorganisms (such as molds and yeasts) need oxygen to survive. Yes, and vacuum packaging uses this principle to extract the oxygen in the packaging bag and food cells, so that the microscopic objects lose the "survival environment".

The automation of the vacuum packing machine not only improves the production efficiency, but also has the advantages of safety and health. In addition, many foods are not suitable for vacuum packaging and must be vacuum-filled packaging. Such as crispy and fragile foods, foods that are easy to agglomerate, foods that are easy to deform and run out of oil, foods with sharp edges or corners or high hardness that will pierce the packaging bag. After the food is vacuum-inflated, the air pressure inside the packaging bag is stronger than the atmospheric pressure outside the packaging bag, which can effectively prevent the food from being crushed and deformed under pressure without affecting the appearance of the packaging bag and printing decoration.

The vacuum packing machine can effectively keep the freshness and color of fruits and vegetables, and the high concentration of oxygen can keep the fresh meats bright red. In terms of control technology, more computer technology and microelectronic technology are used; in terms of sealing, heat pipe and cold sealing technology are applied; advanced devices are directly installed on the vacuum packing machine, then the development of the vacuum packaging machine is a blueprint!

How To Improve The Working Efficiency Of Mortar Spraying Machine

In order to ensure the quality of spraying and improve the efficiency of the mortar spraying machine, preparations must be made before the mortar spraying machine is started. What kind of preparations are needed?

1. First of all, clean up the spray site, no gangue and debris appear;

2. Place the mortar spraying machine firmly, connect the wind, water pipes, and feed pipes. The layout of the pipes should be straight, no sharp bends, and the joints should be tight and no air leakage;

3. Check whether the performance of the mortar spraying machine is intact, whether the fasteners are firmly fixed, and then turn on the power for a no-load test run, and check whether the rotation is normal;

4. Set a wet spray range around the wet spray surface, and install a thickness mark in the wet spray area;

5. Prepare labor protection supplies for the operator of the mortar spraying machine. What precautions should be given in advance during the wet spraying process;

6. Pull an isolation belt around the wet spray area, no unrelated persons are allowed to enter, to ensure that the wet spray surface is not damaged after wet spray.

After the above work is prepared, use high-pressure water to wash the spraying surface again, and then start the mortar spraying machine for wet spraying.

What Are The Vulnerable Parts Of The Luggage Wrapping Machine

Friends often report that after the luggage wrapping machine parts are broken, when contacting the manufacturer for repair, most of them need to replace the luggage wrapping machine parts or wait for the manufacturer's after-sales maintenance. Whether it is replacing the luggage packaging machine parts or waiting for the manufacturer to repair, it will affect the production schedule. Therefore, today I will talk to you about the easily damaged parts of the luggage wrapping machine on this issue, so as to avoid the normal use of the machine due to damage to the accessories.

The main components of the chassis of the luggage wrapping machine are the tray, the sprocket and the supporting wheel in sequence. The sprocket and the supporting wheel carry the tray and drive the tray to rotate. Therefore, failure of any one of these three components will cause the other two components to wear out for a long time. damage. The thickness of the pallet is preferably 10mm steel plate, and many manufacturers choose 6 or 8 thick ones for shoddy ones, which will be deformed if worn. The quality of the sprocket of the luggage packaging machine depends on the diameter of the sprocket. At present, there are 60-tooth small gears with a diameter of 298mm and 80-tooth large gears with a diameter of 412mm. The larger the sprocket, the greater the support for the tray, the greater the pressure on the supporting wheel, the lower the pressure on the supporting wheel, and the lighter the wear; on the contrary, the smaller the sprocket, the more the supporting wheel wears.

In addition, the motor of the luggage wrapping machine drives the large sprocket vigorously, while driving the small sprocket is laborious. The small sprocket will increase the burden of the drive motor and cause damage to the motor. You must choose the chassis of the large sprocket. Supporting wheels are like car tires. They need to be replaced if they are worn to a certain degree. Not only the quality of the pallet and the sprocket will affect the consumption speed of the supporting wheels, but the quality of the supporting wheels is also very important. However, the quality of the supporting wheel is not as intuitive as the pallet and the sprocket. There are dimensions that can be directly referred to. It is difficult for users to judge. However, based on experience, it is determined that the thickness of the pallet is less than 10mm and the small sprocket is used. The quality of the supporting wheel must be very poor. Either the motor is damaged or the supporting rollers are frequently replaced during use.

How To Maintain The Air Leg Rock Drill

Air leg rock drills are a type of hand-held pneumatic tools. Pneumatic leg rock drills are widely used in industries such as mining and construction. But how long does the gas leg rock drill want to use? Here's how to maintain the air leg rock drill.

When the air leg rock drill is equipped with a drill pick, the clearance between the pick tail and the brazing body should be checked, and then hold the handle and slowly apply pressure to the rock drilling direction to make the pick drill work normally. When the gas leg rock drill is working normally, lubricate every 2-3 hours and inject it from the connecting pipe. When the air leg rock drill hits the soft ore layer, do not insert the drill pick into the ore layer to prevent air strike. If the gas leg rock drill is stuck in the rock joint, do not shake the gas pick violently to prevent damage to the connected parts. During use, the air leg rock drill is disassembled at least twice a week. The diesel oil is cleaned, dried, and coated with lubricating oil, and then assembled and tested. Air leg rock drills, such as pneumatic picks, have been discontinued for a long time and should be disassembled for cleaning, oil seals, and warehouse storage.

The air leg rock drill is suitable for drilling vertical downward blast holes. The air leg rock drill is widely used. The gas leg rock drill is suitable for drilling horizontal and inclined blastholes on medium-hard and hard rocks. Proper maintenance of the air leg rock drill can extend its life.

Correct Use Of Steel Arch Support

Steel arch support is a kind of passive support for coal mine support. It has high tensile strength and compressive strength, and at the same time has good toughness, high supporting force and strong supporting strength. It can be used multiple times and is widely used. Mines, especially in deep complex roadways and soft coal seam roadways.

The best stress state of the steel arch support is that the back wall is filled and compacted to make it evenly compressed. When the pressure value of the surrounding rock used on the U-shaped steel support reaches a certain value, the support will be compressed and the surrounding rock will act on the U-shaped steel. The pressure on the support is reduced, so as to prevent the support from being damaged by the surrounding rock pressure being greater than the bearing capacity of the U-shaped steel support.

According to the specific conditions of the site, flexibly select the model, structure and shed distance of the steel arch support, and correctly guide the construction of the roadway steel support to ensure its effective and reliable work, which is useful for accelerating the speed of roadway excavation, reducing the amount of repairs in the later stage of the roadway, and ensuring safety Production, extending the service life, obtaining better technical and economic benefits, and giving full play to the support performance of the bracket are of great significance.

Reasons For Choosing Steel Arch Support

Steel arch supports are widely used in the industry, in steel structures. In fact, in addition to this aspect, the use of steel arch supports in mines has also been favored. First in the mine, it is inevitable to use some support components. In order to ensure the stability of the components, the steel arch support is basically selected. It can be seen that it can be used as a support for mine tunnels, secondary support for mine tunnels, and mountain tunnels. Ideal for nursing and other products.

The use of steel arch support is also very helpful in raising the stability of the mine ventilation system, so safety accidents during operation can also be avoided. On the whole, the steel arch support greatly improves the safe production conditions of the mine, thereby providing more safety guarantees and economic benefits for enterprises. The shrinkable metal supports for mine roadways are also made of U-shaped steel, which solves the problem of support in the process of mine excavation. At the same time, the shrinkage, stability, and load-bearing capacity are significantly improved.

In order for the steel arch support to be used in the steel structure, the cutting of the steel should be carried out on a shearing machine or sawing machine as much as possible. For thin-walled steel roof trusses, in this way can the cutting material be cut. This method can improve work efficiency and guarantee quality. Steel arch support, as a consumable in the support field with great demand, requires a reliable manufacturer's production line to ensure quality, safety and reliability.

Features Of Gasoline Rock Drill

Gasoline rock drill is a machine that integrates rock drilling and crushing. It has a built-in switch to replace rock drills or crushers. Gasoline rock drills are widely used in mining, road construction, quarrying, national defense projects, etc. The YN27C internal combustion rock drill is easy to carry, suitable for high mountains, areas with no power, no wind pressure equipment, and temporary projects with high mobility, and has a wide range of adaptability.

Features of Gasoline Rock Drill

1. The gasoline rock drill can complete drilling or crushing operations by moving the handle as required.

2. The gasoline rock drill is easy to operate, saves time and effort, and has the characteristics of fast drilling speed and high efficiency.

3. Gasoline rock drills currently reach the first-class level of similar products, and can be completely interchanged with international similar products.

4. Drill holes in the rock, which can be drilled vertically downwards, horizontal upwards less than 45°, and the deepest vertical downwards is up to six meters.

5. The host weighs only 27 kilograms, and can be operated by only one person. It is convenient to carry and is especially suitable for high mountains, areas with no power supply, no wind pressure equipment and temporary projects with high mobility.

6. Gasoline rock drills can work in high mountains, flat grounds, in extreme heat of 40° or severe cold areas of minus 40°. This machine has a wide range of adaptability.

7. Gasoline rock drills are packaged for export, and all indicators meet export standards. This product is a product and does not require commodity inspection for export. Because it only needs to add gasoline to work, no other auxiliary equipment is needed, so it is very popular in the market!

8. Gasoline rock drills are suitable for mining iron ore, copper ore, nickel ore, lead-zinc ore, gold ore, gem ore, granite, bluestone, jade and other mines.

What Are The Daily Inspection Items Of The Medium Concrete Mixer

Check items before using the medium concrete mixer:

1. Check whether the mixer body is stable.

2. Whether the connecting bolts on the blade and the mixing blade support arm are firm.

3. Whether the bolts connected to the loading rack are tight.

4. Whether the water pump diversion is sufficient and the pipeline is unblocked.

Inspection items of the medium concrete mixer after use:

1. Clean the dust on the inside and outside of the mixing drum, the discharge door, and the hopper, and rinse with water.

2. The hopper should be parked at the transportation position and the brake pin should be inserted. There should be no debris in the hopper.

3. Cut off the power supply and lock the electrical control box.

4. Fill lubricating oil (grease) appropriately to each lubrication point.

5. All stored water in the water supply system should be drained.

Regular inspection items of medium concrete mixer:

1. Check the hoisting brake and make appropriate adjustments.

2. Check the water pump and throttle valve to see if there is any leakage.

3. Check the open gear, apply lubricant and adjust the belt tightness.

4. Check the wear of blades and liners, and replace them as appropriate.

Operation Guide Of Automatic Mortar Spray Machine

1. Before starting each shift of the automatic mortar spray machine, press the hand oil pump several times to inject oil into the transmission parts.

2. After the automatic mortar spray machine is connected to the power supply, first electric main motor to check whether the direction of rotation of the rubber spiral is consistent, if it is inconsistent, it is necessary to change the phase line of the power supply (this check must be performed each time the power supply is reconnected)

3. Connect the conveying hose and nozzle to the mortar spraying machine, add 5L of clean water to the hopper, start the motor to pump the clean water out, to wet the hopper, the pump body and the conveying hose, and shut down after pumping most of the water.

4. Add putty or paint into the hopper to start spraying (the air compressor should be started and the air valve should be opened first)

5. The automatic mortar spray machine is strictly forbidden to run idly in the hopper without material and water.

6. After the automatic mortar spray machine is finished, drain the remaining material in the hopper, fill enough water into the hopper, clean the hopper, and start the pump out, clean the hose and spray head, until the pump is full of water, so as to avoid excess material The hose solidifies, clogging the hose and the nozzle.

7. The automatic mortar spraying machine has been shut down for too long, wipe the machine clean, and remove the booster screw. After oiling, keep it properly and reinstall it when using it.

8. When the pump pressure is insufficient during the operation of the automatic mortar spray machine, the booster stator bolts can be adjusted or the booster rubber sleeve and booster worm can be replaced.

The Role Of The Tunnel Roof Support

Tunnel roof support is a kind of passive support for coal mine support. It has high tensile strength and compressive strength, and also has good toughness, high supporting force and strong supporting strength. It can be used multiple times and is widely used. It is used in mine tunnels, especially in deep complex tunnels and soft coal seam tunnels.

The stress state of the tunnel roof support is that the back wall is filled and compacted to make it evenly compressed. When the pressure value of the surrounding rock used on the tunnel top bracket reaches a certain value, the bracket will compress, causing the surrounding rock to act on the tunnel roof support Therefore, the pressure of the surrounding rock is lower than that of the support of the tunnel roof and the support is destroyed.

According to the specific conditions of the site, flexibly select the model, structure and shed distance of the tunnel roof support, and correctly guide the construction of the roadway U-shaped steel support to ensure its effective and reliable work. It is for accelerating the speed of the roadway and reducing the amount of repairs in the later stage of the roadway. Safe production, extended service life, better technical and economic benefits, and full play of the support performance are of great significance.

Working Principle And Characteristics Of Pneumatic Pavement Breaker

The pneumatic pavement breaker uses high-speed impact to crush materials. When the material enters the action area of the blower from the material inlet, it is crushed for the first time by the high-speed impact of the blower. The strong impact force throws the material onto the counterattack board and breaks again, and the material rebounded by the counterattack board falls to Continue to repeat the above process until the material is crushed to be smaller than the size of the discharge port, and discharged from the discharge port due to its own weight.

1. It has large crushing ratio, simple and reasonable structure, stable operation, simple maintenance, convenient and quick replacement of parts, and high crushing efficiency. It is widely used in industrial sectors such as building materials, mineral processing, chemical industry and electric power. It is mainly used to crush materials with medium hardness and brittleness.

2. After optimized design, the crushing cavity is enlarged and the feed size is increased. Through the optimized liner and specific rotor, the production efficiency under various application conditions is greatly improved.

3. High chromium materials and high manganese steel materials are used for the plate hammer, impact liner on the rotor of the crusher and the vulnerable parts in the cavity, which improves the durability of the vulnerable parts (such as the plate hammer, impact liner, etc.) and the reliability of crusher mechanical parts (such as main shaft, bearing).