How to operate the grouting pump How to use the grouting machine?

Grouting pump operation safety operation procedures:

1. Preparation and inspection before opening the pump.

1) The pump body should be firmly installed on the foundation, and the fastening of the power end parts should be checked.

2) According to the site situation, the length of the suction pipe and the suction lift should be shortened as much as possible, and the slurry inlet valve and drain valve should be checked to see if they are in good condition.

3) Check whether the clutch and transmission work reliably.

4) Check the mating clearance of piston rod bushing, connecting rod bearing, crosshead bearing and crosshead sliding sleeve.

5) Check the oil level of the lubricating oil in the crankcase, check whether each grease nozzle has enough lubricating oil, and whether the lubrication of each component is normal.

6) Check whether the safety valve is reliable, whether the pressure gauge is sensitive, and check the accuracy of the pressure gauge as required.

7) Check the slurry inlet, and there shall be no debris with a particle size greater than 3mm.

8) Turn the pulley 5 6 times by hand to check whether the pump runs flexibly.

2. Pump operation inspection.

1) Place the clutch handle in the disconnected position and start the motor. When the operation is normal, close the clutch to start the pump to work, and deliver the slurry to the work site.

2) When the pump is working, if it needs to change the speed, it must be carried out after pulling the clutch or stopping the pump, and it is not allowed to change the speed during operation.

3) Pay attention to whether there is any impact and collision sound in the transmission system of the pump, whether the slurry discharge pressure and slurry discharge volume are uniform, and whether there are abnormal phenomena such as oil leakage and slurry leakage.

4) The discharge pressure of the pump should be controlled within the rated range, and the pressure gauge value should be observed and controlled at any time to prevent exceeding the specified limit value.

5) In the work, the lubrication of the moving parts should be checked frequently, and the lubricating oil temperature in each box is in the range of 30 50, and the maximum shall not exceed 60.

6) The brake belt in the belt brake should not be stained with oil to prevent the friction pads and brake valve from slipping during braking.

3. Stop the pump for inspection.

1) After opening the tee circuit to relieve pressure, disengage the clutch and stop the motor.

2) Clean the pump head cylinder with clean water until it is clean.

3) When the pump is stopped during the idle period or winter, the slurry in the pump and the pipeline must be cleaned and cleaned thoroughly.

1. Wipe the nozzle clean before the pipeline is connected, and then blow the impurities in the pipeline once with air and then connect it to ensure the cleanliness of the air source; Ensure that the components are installed correctly and reliably, without damage and failure. Start by opening the intake valve at a slight angle:

Observe whether there is enough lubricating oil in the lubricator (No. 32 engine oil is sufficient), and make the oil supply switch on the lubricator open at a suitable angle (about 20 drops min), and it is strictly forbidden for the lubricator to work without oil.

Observe the water distribution filter, and at work, remove the excess water in the water distribution filter at any time;

Observe whether each part is working normally, and whether there is leakage in each connecting joint; When the pump is working at full capacity, open the inlet valve to the maximum.

2. A cylinder is used for material A, and B cylinder is used for material B, which cannot be mixed. (The difference between cylinder A and cylinder B is that the filter screen of cylinder A is coarse and used to inject slurry with high viscosity; The strainer of the B cylinder is fine, and it is used for filling slurry with low viscosity).

3. When the grouting ratio is changed from 4:1 to 1:1 (that is, the grouting material is changed), it is necessary to carefully clean the remarks after the slurry cylinder is disassembled. (It is recommended that you purchase two sets of grouting cylinders for injecting different materials).

4. Before grouting liquid, it is necessary to suck the oil to clean the grouting cylinder and grouting pipeline, and check the sealing and smoothness of the grouting cylinder and the grouting pipeline at the same time; Or according to the slurry situation, a special cleaning method is adopted.

5. Immediately after stopping the grouting should be cleaned with the alkali solution equipped by Kafoni, and then rinsed with clean water to thoroughly clean the residual slurry. Equipped with suction filter and strainer cover, after cleaning the pump, the strainer cover must be screwed on to prevent dirt, water and air from entering the grouting cylinder.

6. In the grouting to observe the grouting pressure gauge, the mixing ratio of each slurry and the movement speed of the piston: observe the barrel at any time to see whether the slurry suction ratio is correct (if the proportion is not right, close the valve at the grouting pipe of the fast grouting cylinder or fold the suction pipe to increase the resistance of slurry suction), if the proportion is still not right, there may be internal leakage in the grouting cylinder, observe the grouting pressure gauge (the pressure gauge fluctuates, but there will be no zero phenomenon), if the pressure gauge has a zero phenomenon, the grouting cylinder may have internal leakage, Replace the grouting cylinder seal and the grouting pipeline seal.

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The grouting pump is suitable for grouting water blocking, filling voids, reinforcing broken rock formations and other projects in mines, tunnels, water conservancy, subways, buildings, bridges and other construction sites, and is an indispensable equipment for construction site construction.

First, the operation process.

Step 1: Test machine before grouting

In order to ensure the smooth operation of the grouting machine, the machine must be tested before work.

1. Check whether the hydraulic oil in the oil tank is sufficient, if the hydraulic pressure is too low, it should be added in time;

2. Check the motor and oil pump, which should be able to easily rotate several times;

3. Turn on the pressure gauge switch of the grouting machine, and loosen the pressure regulating handwheel of the relief valve;

4. Put the suction pipe into clean water for testing, and jog the motor switch to check whether the rotation direction is correct;

5. Check whether the electro-hydraulic valve and the travel switch are normal;

6. Start the motor, adjust the oil pressure to 1-2MPa for 3 minutes of trial operation, open the slurry discharge valve of the mixer to a certain extent, adjust the oil pressure to the set pressure, and then stop the machine to prepare for formal work.

Step 2: Formal homework.

1. After the test machine is normal, put the two slurry suction faucets into the slurry and implement normal grouting;

2. In order to protect the grouting cylinder and seal, the cement slurry should be filtered before entering the suction cylinder, and the steel wire filter screen should be wrapped on the suction faucet for re-filtration;

3. During the grouting operation, it is necessary to pay attention to prevent the occurrence of pipe blockage, especially when using a double-liquid grouting machine to inject double-liquid slurry.

Step 3: The grouting operation is completed.

1. After the grouting is completed, immediately put the slurry suction faucet into the clean water, fill the water for more than 3 minutes, clean the residual slurry in the pump and the pipeline, and prevent the residual slurry from solidifying;

2. Disassemble the suction and discharge valve chamber and mixer, and thoroughly clean the inside, especially the steel ball of the check valve and its joint surface. When inspecting the mixer, if it is found that the rubber tympanic membrane of the serous pressure gauge is damaged, the tympanic membrane should be replaced immediately, and the cavity must be filled with oil after replacing the tympanic membrane, and then the pressure gauge must be tightened.

2. Precautions.

1.After use, the pump and pipes must be cleaned without leaving any residual ash. 2.During the cleaning, special attention should be paid to the mortar at the ball valve, which should be cleaned to ensure the normal operation of the ball valve.

3.When a ball valve or piston is found to be cracked or worn, it should be replaced.

Grouting machine precautions:

1) You should always pay attention to the indication of the pressure gauge, such as the indication of the pressure gauge or when the safety device does not work after exceeding the pressure, the cause should be found out, and the fault should be cleared before starting.

2) Pay attention to whether the structure of the mortar pump and motor is normal, when any fault is found, stop immediately, open the slurry drain valve to reduce the pressure, and eliminate the fault.

3) Always pay attention to make the gran compression packing so that it does not leak. If there is still leakage after compression, the packing or piston should be replaced according to the specific situation.

4) The stirred mortar should be determined by consistency before entering the pump, and the consistency meter should be perpendicular to the slurry surface during the test, and it should be easily put down and sink with its own weight.

5) After the shutdown at the end of each shift, clean water must be pumped immediately, and the inside of the pipeline and pump must be cleaned until it is cleaned to ensure that the ball valve, slurry discharge port, slurry suction port, and slurry discharge valve are clean and smooth.

6) The oil chamber should be filled with oil.

1. The conveying pipeline should have firm support, minimize the bend of the pipe, connect the joints firmly, and no heavy objects should be pressurized or suspended on the pipeline.

2. Before the operation, the operation should be carried out dry, the rotation direction should be checked to be correct, and the transmission part, working device and hopper filter screen are complete and can be relied on before the operation can be carried out. Squire.

3. Before operation, the concentrated lime water or lime paste should be sent into the pipeline for lubrication by pump.

Fourth, after starting, the mortar can be put into the pump only after the normal operation. The mortar pump must run continuously, when the mortar is not used in a short time, the slurry valve can be opened to make the mortar circulate in the pump body, if the downtime is long, it should be pumped every 3 5min to make the mortar flow in the pipeline and the pump body to prevent condensation and blockage.

5. In the work, always pay attention to the instructions of the pressure gauge, and if the pressure exceeds the specified pressure, the cause should be immediately identified and the fault should be eliminated.

6. Attention should be paid to check the wear and tear of the ball valve, valve seat or extrusion pipe, and if the slurry leakage is found, it should be stopped for inspection and repair or replacement before continuing to operate.

7. When the fault is stopped, the slurry relief valve should be opened to reduce the pressure, and then the fault should be eliminated. When the pressure of the mortar pump does not drop to zero, the air chamber, pressure safety valve and pipeline shall not be disassembled.

8. After the operation, the grouting pump should be comprehensively cleaned and the site should be cleaned, and the rubber ball of the overload safety valve should be dismantled and cleaned, and its installation position should be changed to maintain uniform wear.

First, the working principle of the grouting pump:

The grouting pump provides working power through compressed oil or compressed air, and its working principle is mainly to use the oil cylinder and grouting pump to have a large action area, so that as long as the pressure is very small, the cylinder can produce injection pressure.

When the crank rotates counterclockwise at angular velocity, the piston moves to the right, the volume of the cavity increases suddenly, the liquid pressure in the cavity decreases, the suction valve opens and the discharge valve is closed under the action of external pressure, and the transported liquid overcomes the resistance loss of the suction pipeline and the suction valve under the action of pressure difference and enters the cavity When the crank turns 180°, the piston moves to the left, the liquid is squeezed, and the liquid pressure in the cavity increases sharply, and the suction valve is closed and the discharge valve is closed under the action of this pressure. The liquid in the chamber is discharged into the discharge line under the action of pressure difference. As the crank rotates at angular speed, the reciprocating pump continuously sucks in and out the liquid.

Second, the advantages of the grouting pump:

The grouting pump has many outstanding advantages, such as its simple structure, strong applicability, high work efficiency, large displacement, mobile and maintenance are very convenient, and at the same time, it has good safety, and it has strong work efficiency in the environment of explosive and large temperature changes.

The working principle diagram provided by Woyu Machinery concrete pump manufacturer, the hydraulic system pushes concrete to achieve concrete pumping.

The grouting pump uses compressed air as the power source, and uses the cylinder and the grouting cylinder to have a large area ratio, so that the cylinder can produce a higher injection pressure with a smaller air pressure. (For detailed parameters, please refer to the "Xuzhou Botai Mine Safety Technology ****3ZBQS12 6 Type 6 Coal Mine Pneumatic Double-Liquid Grouting Pump Manual").

Grouting pump is a commonly used mechanical equipment in building construction, and when used, it is generally used with multi-component chemical products such as reinforcing agent and water blocking agent. The grouting pump uses compressed oil or compressed air as the power source, so that the smaller pressure can still make the cylinder produce a higher injection pressure, which is often used in construction projects, metallurgical steel departments, national defense projects, farmland water conservancy and other environments. So what is the grouting pump used for?

Let's take a look!

The grouting pump is a key equipment in grouting construction, and is often used for construction with multi-component chemical products such as Kafeni filling, Yukani rock reinforcement agent, water plugging agent, etc. The grouting pump uses compressed oil or compressed air as the power source, and the oil cylinder or cylinder and grouting cylinder have a larger action area ratio, so that the cylinder can produce a higher injection pressure with less pressure. It is suitable for grouting and water blocking, filling voids, and reinforcing broken rock formations in mines, tunnels, water conservancy, subways, buildings, bridges and other construction sites.

The grouting pump is very widely used in our lives, and its "figure" can be seen everywhere, and it mainly has the following uses:

1. In construction projects, it is used for vertical and horizontal transportation of mortar.

2. In the metallurgical steel sector, it is used for blast furnaces and other equipment.

3. It is used for grouting in national defense projects, civil air defense projects, mines and tunnel construction.

4. In the chemical industry, it is used to transport slurry raw materials (color paste, coatings), magnetic materials and other media.

5. In farmland water conservancy projects, it is used to strengthen dams. Drilling wells in sand is used to reinforce the wall of the well, etc.

Features of the grouting pump.

1. Advanced structure, high rated output pressure, large displacement, high efficiency, easy to move, easy to use and maintain;

2. Full function, that is, it can inject one-component slurry of Shouxiang mold or two-component slurry; It can be injected with chemical slurry, but also with cement and other slurries; Each cylinder works synchronously, the mixing ratio can be adjusted, and the mixing is uniform; And it can be used as an emulsion pump, hydraulic pump, etc., for other occasions;

3. Good safety, it can be used safely in places with large changes in temperature and humidity;

4. The parameters can be adjusted according to the different needs of customers. Meet the special requirements of different pressures, flow rates and different conveying media;

5. It can work in three cylinders or two cylinders to achieve the requirements of 4:1 or 1:1 slurry mixing ratio, the pump has high pressure and large output flow, which can meet the requirements of high-intensity injection application.

Precautions for the use of grouting pumps.

1. You should always pay attention to the indication of the pressure gauge, such as the indication of the pressure gauge or when the device does not work after exceeding the pressure, the reason should be identified.

2. Pay attention to whether the structure of the grouting pump and motor is normal, and when any fault is found, it should be stopped immediately and the grouting valve should be opened to reduce the pressure.

3. Attention should always be paid to making the partition tight packing to prevent it from leaking.