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Archives
Add the Piston for Cleaning concrete Pump
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- Roll 10~20 cement bags into a column with a diameter slightly smaller than the diameter of the conveying cylinder, a slightly sharp head and a length of about 400mm, tie it with fine iron wire, and tie the cleaning ball lightly on the column tail with iron wire and saturate it with water.
- After pumping concrete, reverse pump for 1~2 cycles to eliminate the pressure in the conveying pipe, and press the button to make the piston of the concrete cylinder retreat to the last point. If the upward pump and the cut-off valve must be closed first to prevent concrete backflow.
- Remove the discharge pipe, open the hopper discharge door, and the reverse pump will wash the concrete in the distribution valve, concrete cylinder and hopper.
- Close the hopper unloading door and add water to the hopper. When the water is added to 2/3 of the diameter of the concrete cylinder, load the cylinder head toward the direction of the distribution valve, and use a wooden crowbar with a length of about 1m and a diameter of about 30mm to stop the cylinder and continue to add water to the height of the center line of the stirring shaft.
- Withdraw the pry bar, start pumping quickly, and continue to add water until the cylinder is pumped out from the output end of the conveying pipe.
The advantage of the piston method is that the pipeline is cleaned clean, the flow rate of the water source can be low, can be suspended, and reduce the trouble of removing the material mouth and the elbow. The disadvantage is that the operation requirements are higher and the distribution valve is easy to cut off the cylinder. The above 3 kinds of concrete pump washing method each has advantages and disadvantages, among which the most reliable is to remove the material pipe method, the simplest is to add the piston method, such as the transmission distance is short, the direct water method is also a good choice. The specific method should be determined according to the actual situation of the construction, in short, to achieve both effective and economic.