Cement Mixer Engine

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The core component of the cement mixer is its engine. Today I will introduce the engine of the cement mixer of the China Coal Group. The cement mixer uses the Honda 389cc GX Series OHV commercial grade engine designed for the most demanding commercial applications. It sets the industry standard for reliability and durability. The overhead valve design provides cooler, more fuel-efficient operation and the cast iron liner provides longer life. GX is reliable, easy to start, and quiet. Meets EPA and CARB emission standards. This legendary engine has earned the reputation of the engine of choice for construction equipment.

Supply Honda engine GX390 air-cooled 13HP displacement 389CC

Features:

A: Ideal combustion chamber shape, excellent suction and exhaust effect, and OHV structure that greatly improves combustion efficiency.

B: Professional speed stabilizer to reduce uneven operation caused by load changes.

C: The hand pullback starter allows the women to start easily thanks to the pressure relief mechanism.

D: Standard equipment for the transistor magnet ignition device, which exhibits stable ignition performance, low fuel consumption, low fuel consumption and good economy.

E: The unique combustion power of the OHV structure is unique, resulting in low fuel consumption.

F: The cooling air passage is improved to improve the cooling performance, thereby further reducing the fuel consumption. Low center of gravity design; low vibration.

F: It adopts a thin hand-drawn recoil starter to achieve light weight and compactness, and fully exerts excellent assembly.

G: OHV overhead valve reduces carbon accumulation, cylinder head check is simple, external transistorized ignition system does not need to touch

H: Point inspection, simple equipment, high dust resistance, etc. make maintenance easier.

Product Usage:

The scope covers garden machinery, construction machinery, agricultural machinery products and other outdoor power equipment.

Our cement mixers are equipped with such engines to provide sufficient power for the operation of the equipment. When choosing a cement mixer, the key depends on engine performance.

How To Use Rebar Detector?

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In order to ensure the thickness detection accuracy of the concrete protective layer, the tester should be proficient in the performance of the rebar detector and the influence degree of various factors on the thickness of the concrete protective layer. The evading factors that can be avoided are not evaded. Make a record and perform a simulation test to correct it. According to the long-term testing practice, the rebar detector for applying the eddy current effect can be operated according to the following operational points before and during the test:

(1) Determine the quantity and location of the test in accordance with the procedures specified in the specification.

(2) Read the construction drawing, grasp the section size of the inspection position structure, the direction of the force, the diameter of the steel bar, the quantity, and the thickness of the designed protective layer.

(3) Investigate whether there are conductive metals such as water pipes, wires, and metal wire bushings at the inspection location. Avoid them when selecting test sections.

(4) Check the flatness of the test surface. When the unevenness exceeds 0.5 mm, it should be smoothed.

(5) Select a probe of the right size. Use a small probe when the thickness of the protective layer is less than 60 mm. Large probes are used when the thickness of the protective layer is greater than 60 mm.

(6) According to the construction icon, the bar size setting parameter is set, and the rough position is detected in the detection position area, and the approximate position of the steel mesh is drawn. The detection line is drawn at the point where the distribution rib spacing is relatively large and the distribution rib has the least influence, and is measured along the line.

(7) When measuring the thickness of the protective layer of the main rib at the bottom of the beam, the influence of the dense steel bar on the detection accuracy is highly emphasized. When the number of steel bars is determined to be inconsistent with the construction drawing or the position of the steel bar cannot be determined, in addition to the readings recorded on the bottom and the two sides of the rebar detector, the thickness of the bottom protective layer shall be calculated by the two side reinforcing bar positioning measurements, and the side protection shall be calculated by the bottom bar reinforcement positioning measurement. The thickness of the layer and the center of the bottom surface of the probe are aligned with the bottom corner of the beam. The measured values are verified by measuring the distance from the bottom corner of the beam to the surface of the steel bar and the angle between the bottom of the beam and the minimum value of the rebar detector. When measuring the distance from the bottom corner of the beam to the surface of the steel bar, the rebar detector indication is subject to the least interference.

(8) Prepare a 10 mm thick plastic backing plate. When the thickness of the protective layer is less than the minimum value that can be displayed by the rebar detector, the pad is tested and the value obtained is subtracted from the thickness of the pad.

(9) When the negative deviation of the thickness of the protective layer exceeds the standard, the structural durability may be seriously reduced or the positive deviation of the thickness of the protective layer may cause the structural bearing capacity to be seriously reduced and the test result may be suspected. The micro-damage inspection shall be carried out.

(10) The rebar detector should be calibrated on the standard block before and after use.

How Does A Multi Gas Detector Work Better?

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Multi gas detector structures: multi gas detectors consist of a gas-tight piston and aluminum alloy gas storage tube. It is mainly used to quickly check the concentration of carbon monoxide in the ambient air of coal mines. It can also be used together with different types of gas detector tubes to determine the concentration of various gases such as carbon dioxide, hydrogen sulfide, oxygen, and nitrogen dioxide.

In order to make the multi gas detector work better, we need to pay attention to the following methods during use:

First,Preparation before going down the well:

1. Check that the outer casing and the connecting part are in good condition and that the joint hose is equipped;

2. Check if the air path is unblocked: Pull the piston in parallel with the three-way switch and the cylinder to check the air inlet, and hang the three-way switch and the cylinder

The straight device pushes the piston to check the air outlet;

3. Check the flexibility of the piston: reciprocally push and pull the piston 3-4 times in parallel with the three-way switch and the cylinder to make it flexible;

4. Check the air tightness: twist the three-way switch to a 45° angle with the cylinder, pull the piston, pull it quickly, and quickly restore or live the piston.

The scale on the plug back to no more than 5ml indicates good air tightness.

5. Not less than 30 types of verification tubes;

6. Check the integrity of the verification tube, the maximum value of the verification tube, the prescribed air supply time, the prescribed air supply amount, type, and service life.

Second, the actual operating procedures:

Arrive at the location to be tested, parallel the device with the three-way switch and the cylinder, take the air from the upper part of the roadway, push and pull the piston 3-4 times to clean the piston.

Pull out slowly the last time, then quickly twist the three-way switch to a 45° angle to the barrel. Take a longer test tube, first

Observe the specified air supply and air supply time of the identification tube, open both ends of the verification tube, the zero position is facing downward, and the scale is facing itself.

The verification tube is inserted into the joint hose, and then the three-way switch is twisted into a vertical position with the cylinder, and the air is supplied at a constant speed within a predetermined time.

The position where the color changing ring moves. The concentration of carbon monoxide is read according to the actual moving scale on the verification tube.

Three inspections:

1. Constant check: The operation method is the same as above, the specified air supply amount can be sent at a constant speed within the specified time, and the direct reading can be performed on the verification tube.

As a constant, the concentration of carbon monoxide is the value displayed by the verification tube.

2. Micro-inspection: The operation method is the same as above. After the specified air supply volume is delivered at a constant speed within the specified time, the test tube cannot read.

Take the same method to use the same test tube to repeatedly send air to check, the amount of gas is the same every time, the inspection results

The result is divided by the number of aspirations, which is the true content.

Namely: carbon monoxide concentration = reading on the verification tube / number of air supply

3. Concentration check: The operation method is the same as above, and the air is supplied at a constant speed within the specified time. When the specified air supply volume is not reached, the verification tube has reached

To the maximum value, the concentration of carbon monoxide at this time = the maximum value of the test tube × the prescribed air supply amount / the actual air supply amount. High concentration of mono-oxidation

Carbon can be inspected after thinning, and the result is multiplied by a thin multiple, which is the true content.

Precautions

1. In the case of constant check, the test tube is 100ml, and the test tube with air supply time of 100 seconds or 200 seconds needs to be sent out.Gas is the true concentration of the gas to be tested.

2. For traces and concentrations of carbon monoxide, the test tube of the corresponding measurement range should be selected for measurement.

3. When detecting gas, first observe the expiration date and measurement range of the verification tube. Understand the value represented on the verification tube .The concentration is tested according to the verification tube instructions. (Generally carbon monoxide, carbon dioxide, oxygen are 50ml; hydrogen sulfide is 100ml, 100 seconds; nitrogen dioxide is 50ml, 25 seconds)

4. If the gas nozzle is blocked, the valve can be pulled into the vertical position of the cylinder, the gas sample is removed from the air outlet, and then pulled into a 45° rear insert.Verify the tube and pull it into a vertical position to send the gas out.

5. Conversion relationship between percentage and ppm 1% = 10000 times the ppm value

What Is The Use Of Backhoe Loader?

The excavator is a farmland construction machine for excavating earthwork. It can be used to excavate reservoirs, fish ponds, ditches and clearing channels.

Using an excavator can effectively improve engineering efficiency and save manpower. There are two types of shovel excavators and backhoe excavators according to their configuration on the tractor. On the tractor equipped with the backhoe excavator, and then the front-mounted device, it becomes a backhoe loader, which can be completed.

Digging and loading two jobs.

The excavator consists of a bucket, a bucket column, a swing arm, a foot or support wheel, and a hydraulic system. The bucket is hinged to the bucket column and the bucket column is hinged to the end of the swing arm. The hydraulic system controls the lifting and lowering of the swing arm and the rotation in the horizontal plane through each special cylinder, and the bucket column rotates in the vertical plane.

The movement, the lifting and lowering of the feet, and the digging, lifting and unloading of the buckets enable the bucket to excavate the earth at a height of 3 to 4 meters above and below the ground and discharge the soil to a designated location.

What is the use of the backhoe loader? Here are a few different working devices of the excavator to learn more about the role of the excavator! !

 Long arm

The extension arm belongs to the excavator work unit and is a long arm specially designed to lengthen the effective working range of the excavator. It is called an extension arm. According to the way of operation, it is divided into: demolition and long arm, deep pit and long arm, piling and long arm.

Super hydraulic shear

Hydraulic shears are mainly used for the disposal of scrap metal, the demolition of buildings and the reconstruction of roads and bridges. Can cut a variety of different materials, including construction steel, motorized rail cars, steel plates, steel pipes, steel, steel, round stones, concrete, masonry, wire and cable, tires and wood.

Grab steel machine

Grab the steel machine, as the name suggests is the machine that grabs the steel. The size of the steel grab is commonly called the “grab arm”, which is generally long. The front end is the steel grabber, which is also the gripper, also known as the plum blossom hydraulic grab. The main function of the orange pet grab is to carry out the loading and unloading operations of various materials such as scrap metal, industrial waste, crushed stone, construction waste and domestic garbage.

Ripper

The ripper is a working device that directly contacts the soil of the excavator. Because it is shaped like a hook-shaped bucket device, it is also called a bucket hook; because more working conditions are more complicated, such as harder If the soil is infiltrated with gravel or all of the rock, it is impossible to complete the excavation with the bucket. Therefore, the soil or rock should be loosened by the ripper and then loaded with the bucket. Excavator belt ripper can also replace the trouble of shooting in the case of red earth rock weathering rock. Mainly used for floor cleaning, site preparation, sidewalk and road surface stripping, and high-strength excavation operations.

Wood grab

The wood grabber is one of the excavator work devices and is specially produced for the specific work requirements of the excavator. The main function of the wood grabber is to grab the handling and handling of scrap metal, stone and wood.

What is your understanding of the excavator now?

What Are The Major Parts Of Sprayers?

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The spraying machine is mainly composed of a feeding device, a spray gun and an atomizing source. The atomization source varies according to different types and sprayers: the atomizer of the air atomizer consists of an air compressor, a gas pipe, an air oil water separator and a gas storage tank. The air sprayer atomization source is powered by the power source. The composition of the high-pressure pump; the atomization source of the electrostatic sprayer consists of a high-frequency high-voltage electrostatic generator.

It consists of two parts: spray and dry. The working mechanism includes a spray booth equipped with a spray head, a leather conveyor belt, a drying system and a cleaning mechanism. After 2012, the rotary multi-nozzle seal spray chamber was used. Open and close the nozzle by ultrasonic or computer control to achieve leather spraying, no leather, no spray; save paint, reduce pollution and improve coating efficiency. The sprayed leather is fed to the drying zone by a conveyor belt and collected from the other end after drying.

The spraying machine is a special spraying equipment using high pressure airless spraying technology.

The high-pressure airless sprayer, also known as airless spray, uses a high-pressure piston pump to directly pressurize the paint to form a high-pressure paint that is ejected from the nozzle to form an atomizing airflow (wall or wood surface) on the surface of the object. . Compared to spraying, the surface of the coating is uniform and free of graininess. Because it is isolated from the air, the paint is dry and clean. Airless spraying machine  can be used to construct high viscosity coatings with sharp edges and even for some spray projects with boundary requirements. Depending on the type of machine, it is also divided into pneumatic airless sprayers, electric airless sprayers and internal combustion airless sprayers.

How Does Mortar Spraying Machine Work?

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1. Before each shift, first install the hand pump several times to fill the transmission part.

2. After turning on the power, first electric main motor, check whether the rubber spiral direction is the same. If it is inconsistent, you need to change the power phase line. (Every time you re-borrow the power, you must check this.)

3. Connect the conveying hose and nozzle, and if the water is 5L to the hopper, start the motor to clear the water pump, so that the hopper, the pump body and the conveying hose will stop the pump after most of the water is pumped out.

4. Put the putty or paint into the hopper to start mortar spraying machine(should start the air compressor and open the damper)

5. It is forbidden to idling in the state of no material and no water in the hopper.

6. After the work is completed, the remaining material in the hopper should be drained, and enough water should be stored in the hopper, the hopper should be cleaned, and the pump should be pumped out to clean the nozzle of the hose machine. It is known that the pump is all clean water, so as to avoid the residual material in the hose. Coagulation, plugging hoses and nozzles.

7. If the downtime is too long, wipe the mortar spraying machine clean and write down the booster screw. After oiling, keep it in a safe place and reinstall it when using it.

8. There is insufficient pumping pressure during work, and the booster nail bolt or the pressurized rubber sleeve and the pressurized worm can be adjusted.

9. Before start mortar spraying machine, the sprayed area should be infiltrated with water; when spraying, the nozzle should be sprayed as far as possible perpendicularly to the sprayed surface (distance can be adjusted according to the spray effect), and evenly sprayed, and coordinated with the leveling process. If the wall is too dry or sprayed for too long, it will seriously affect the leveling effect, and the process should be changed.

10. The material in the material should be evenly distributed, and it should not be interrupted. The file should be conveyed in a spiral rotation mode. It is strictly forbidden to stir with a stick in the hopper to prevent injury.

11. The spray pipe is blocked, the switch is switched to the manual position, only the compressor is opened, the quick joint before the pump head is removed, and then the nozzle is blocked downward, the wind pressure produces the reaction pressure, and the pipe is remnant. Blow out, put the quick connector on, and start normal work.

12. Wear protective helmets, protective glasses, protective clothing and other protective equipment when spraying hands.

13. The pressurized rubber sleeve and the booster screw are the loss parts. In order to prolong the service life, the booster nail screw is more loose when it is used for the first time. When the pressure is reduced, the flow rate is obviously reduced, and the compression bolt is adjusted. In normal working condition.

Single Hydraulic Prop And Its Accessories

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The single hydraulic prop is a new environmentally-friendly support equipment, which can be used with the metal hinged top beam for high-grade general mining and guns with working face support roof and fully mechanized mining face support end, or can be done separately. Dot column or other temporary support.

The single hydraulic prop is suitable for the inclined coal seam mining face with the coal seam inclination angle less than 25 degrees - 35 degrees. The condition of the coal seam top and bottom plate is: the roof is not affected by the recovery of the pillar, the bottom plate should not be too soft, and the pillar is not pressed into the bottom plate. Deteriorate the integrity of the base plate, otherwise the base should be enlarged. When used in a soft coal mining face, protective measures should be taken on the surface of the live cylinder to prevent collapse. When the pillar is used with the wooden top beam or used as a point column, the top cover should be replaced with a column cap to avoid damage to the wooden beam.

Single hydraulic props classification:

According to the liquid supply mode and the working fluid, it is divided into external liquid supply type (referred to as external injection type) and internal liquid supply type (referred to as internal injection type).

According to different working strokes, it is divided into single telescopic (single stroke) props and double telescopic (double stroke) props. When the stroke characteristics are not specified, it is a single telescopic prop.

According to different materials used, it is divided into ordinary steel props, high titanium alloy props, aluminum alloy props, stainless steel props, etc., and steel props are not indicated when the material characteristics are not indicated.

According to the structure, it can be divided into two types: piston type prop and plunger suspension type prop. The piston type props are further divided into single telescopic and double telescopic props according to the working stroke. The plunger suspension column uses an aqueous medium and is an “environmentally friendly” pillar. At present, there is a new series of SZK single hydraulic props in foreign countries. The three-purpose valve is arranged on the outside of the cylinder block, and the liquid supply pipe is welded outside the cylinder to connect the three-purpose valve with the cylinder internal cavity.

The inner diameter of the single-pillar cylinder is φ63mm, φ70mm, φ80mm, φ90mm, φ100mm, φ110mm, φ125mm, among which the φ100mm cylinder diameter pillar is the most used in the well, and the φ63mm, φ70mm, φ125mm cylinder diameter pillars are mainly used for special purposes.

The maximum height of the single hydraulic props is 0.63m, 0.8m, 1.0m, 1.2m, 1.4m, 1.6m, 1.8m, 2.0m, 2.24m, 2.5m, 2.8m, 3.15m, 3.5m.

In recent years, three specifications of 3.8m, 4.0m and 4.5m have been added. In principle, the pillars of 3.5 meters or more are not used as working surface support, but can be used for end and advanced support.

The single hydraulic props are mainly sealed, cylinder, live column, handle body, stud, top cover, base, piston, cylindrical pin, connecting wire, return spring, and accessory accessories: liquid injection gun, unloading handle, three use valves and so on.