How to solve the problem of blocked concrete pump pipe? What are the causes of pipe blockage and preventive measures? solved

The concrete pump is a kind of construction equipment that relies on pressure to transport concrete through pipelines. It is equipped with special pipelines and can continuously complete the horizontal and vertical transportation of concrete along the pipeline. It is an ideal existing transportation equipment.

The continuous pumping and pouring of concrete can be achieved by combining the production of ready-mixed concrete with pumping construction, and using concrete mixer trucks to run in the middle. Used for concrete transportation in large concrete projects.

If the concrete pump pipe is blocked, you can use the following methods to clear it:

1. Repeat the forward and reverse pump operations, gradually suck the blocked concrete mixture back into the hopper, remix it, and then pump normally .

　2. Find the location of the blockage, use a mallet to loosen the concrete mixture at the blockage, and then remove the blockage through the positive and negative pumps of the concrete pump.

　3. When the above two methods cannot eliminate the blockage, the blocked part of the delivery pipe can be removed after the concrete pump is relieved, and the pipeline can be pumped again after the concrete blockage is discharged. When taking over, the air in the delivery pipe should be removed first, and then the end joint of the delivery pipe should be tightened.

The preventive measures for the reasons for pipe blockage of concrete ground pumps are as follows:

Improper operation: the operator should concentrate on avoiding abnormal readings of the pressure gauge; the pumping speed should meet the equipment requirements; pumping The margin should not be lower than the mixing shaft; the flatness should be controlled within 80-230 mm; the downtime should be controlled within 15-30 minutes. After each operation, the pipeline should be cleaned to prevent the pipeline from being blocked next time. Phenomenon.

Pipe connection errors: Wrong pipes can also easily become clogged. Pipe layout should follow the principles of shortest distance, minimum elbow and maximum elbow.

Concrete or mortar segregation: Before pumping, wet the pipe with water and release the pipe joint from the lowest point of the pipe to release any residual water, or after pumping, place a sponge ball before pumping the mortar and mix the mortar with the water separation.

Partial grout leakage: Tighten or replace the sealing ring of the conveying pipe joint; reduce the special-shaped bolts to adjust the gap between the glass plate and the cutting ring; the piston is in good condition; the conveying roller is in good condition. </p