What checks should I do before going to work?
A:
Routine inspection, including the hydraulic oil level, whether there is water in the tank, wear of the wearing parts, the amount of lubricating oil and whether there is a blocked pipe and other parts of the inspection. If it is a motor pump, it is also necessary to check whether the external voltage is normal, whether the phase is missing, and whether the phase sequence of the connection is correct. What is easily overlooked is the inspection of the oil content of the lubricating oil, which will lead to abnormal wear of the large and small ends as well as the mixing and wearing parts. At the same time, the external pump pipe of the drag pump should also be checked for a circle to prevent the pump pipe from wearing and leaking, or the pump pipe card is not installed in place. Therefore, as soon as the construction site starts, there will be a great risk, and it is a more secure way to turn on the machine after checking.
What should I pay attention to at work?
A:
Before pumping concrete, the tow pump also needs to pump a certain amount of mortar to lubricate the pump pipe. At the same time, according to the increase of the length of the pump pipe, the amount of mortar provided also needs to be increased correspondingly, in order to prevent the end of the pump pipe lubrication is not in place. Before the mortar is pumped, the concrete should be put into the hopper to prevent the suction of the concrete cylinder, which may lead to the occurrence of pipe blocking. At the same time, in the pumping process, the time for the concrete to stop pumping can not be too long, and the middle is taught to mix the concrete positively and negatively every half an hour. Summer construction, long interval can not exceed 1 hour. The drag pump is positioned to keep out the rain so that when it rains, the water will enter the hopper and cause the concrete to segregate. In the working process, we should always pay attention to the pressure value of the drag pump pressure gauge, to avoid holding the pump for a long time, or the pumping pressure is not enough.
What to do after the pipe is blocked?
A:
Tube blocking is one of the common problems, first of all, after the tube blocking should quickly find the location of the tube, dredge the pipeline, after the completion of the above work, do not rush to work immediately. Should find out the reason for the blocked pipe, do not find out the reason, it is likely to be blocked again, just dredged the pipe is blocked, more than worth the loss. Concrete segregation, concrete aggregate particle size is too large, pump pipe leakage, equipment failure resulting in insufficient pumping pressure, piston seal is not strict, glasses plate cutting ring seal is not strict, etc., may lead to the occurrence of pipe blocking problems.
