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Concrete pump pipe cleaning points

(1) After operation, all the concrete in the hopper and in the pipeline must be output, and then the pump, hopper and pipeline should be flushed out. The residual concrete output can be used for concrete construction such as tunnel laying and side wall. Economic pipeline cleaning method is water cleaning (sewage can not handle compressed air cleaning), each can be cleaned 260m above the pipeline.

(2) Precautions for cleaning with water:

① pump performance parameters used: the pressure is not less than 4.3MPa, the flow rate of not less than 180L / min.

② connecting pipe with adjustable tube, stuffing (rubber piston, sponge ball, cement bag roll, etc.) must be tightly into the larger than the tube diameter tube.

③ stuffing sponge ball or cement bag roll, sponge ball or cement bag roll must be saturated with water slurry.

④ long distance cleaning pipe, the first pressure before washing into appropriate amount of cement mortar.

⑤ cleaning, the staff should be away from the nozzle, and set up protective devices so as not to hurt the wounds.

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