Mud pump safety operation procedures, grouting pump safety operation procedures?

1 The mud pump should be installed on a stable foundation frame or foundation and should not be loosened.

2 Before starting, the inspection items should meet the following requirements:

1) The connection part is firm;

2) The motor rotates in the correct direction;

3) The clutch is flexible and reliable;

4) The pipeline connection is firm, the sealing is reliable, and the foot valve is flexible and effective.

3. Before starting, the suction pipe, foot valve and pump body should be filled with water intake, and the upper end of the pressure gauge buffer should be filled with oil.

4. Make the piston reciprocate twice before starting, and start without load when there is no obstruction. After starting, the load should be gradually increased after normal operation.

5. During operation, the sand content of the slurry should be tested frequently. The sand content of the mud shall not exceed 10.

6. For mud pumps with multiple speeds, several speeds should be operated separately in each shift, and the operation time should not be less than 30min.

7. Do not change speed during operation; When a variable speed is required, the pump should be stopped for gear shifting.

8. During operation, when there is abnormal noise, abnormal water volume and pressure, or obvious high temperature, the pump should be stopped for inspection.

9 Under normal circumstances, the pump should be stopped when there is no load. When the pump is stopped for a long time, all the water holes should be opened, the cylinder head should be loosened, the bottom valve water discharge rod should be lifted, and all the sediment in the pump body and pipeline should be drained.

10。When it is out of service for a long time, the mud and grease in each part should be cleaned, the lubricating oil in the crankcase should be exhausted, and anti-rust and anti-corrosion measures should be taken.

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.

1. Before operation, check and confirm that the bolts of each part of the pump are tightened, the protective devices are complete and reliable, the control switches, adjustment handles, handwheels, control rods, cocks, etc. are in the correct position, the hydraulic system is normal and there is no leakage, the hydraulic oil meets the regulations, and there is no debris in the mixing bucket. The upper protective grid is intact and tightly covered. 2. It should be equipped with cleaning tubes, cleaning supplies, ball catchers and related devices.

Before turning on the pump, unrelated personnel should leave the area around the pipeline. 3. After starting, the sliding should be operated without load, observe the indication value of each instrument, check the operation of the pump and stirring device, and confirm that everything is normal before operation. Before pumping, the cement mortar should be added to the hopper to wet the pump and pipeline.

4. In the pumping operation, the concrete plane in the hopper should be kept above the axis of the mixing shaft. The hopper grid shall not be filled with concrete, the feeding flow shall be controlled, the aggregate and foreign matter with excess particle size shall be removed in time, and the grid shall not be moved at will. 5. When the pump is running, it is strictly forbidden to stretch the hand or shovel out of the hopper or grasp the distribution valve with the hand.

When it is necessary to work on the hopper or distribution valve, the machine should be stopped and the accumulator pressure should be relieved first. 6. Do not adjust the pressure of the hydraulic system at will. 7. When pumping, no conveying pipelines and hydraulic pipelines shall be opened; Do not adjust or repair the parts that are in operation.

8. During the operation, the pumping equipment and pipelines should be observed, and the hidden dangers should be dealt with in time. The pipes, clamps, sealing rings, etc. that are worn beyond the specified should be replaced in time.