Failure phenomenon: batching station concrete trailer pump stone feed pneumatic door stones stuck not open. Analysis: batching station pneumatic door there is a big gap doors and small gap doors, big gap door its clearance greater than normal gravel particle size, so as to avoid the card material. Its small gap door gap is generally in the 5 ~ 10mm, 10mm below the stones card into the gap, it is difficult to pneumatic door jammed. Batching station after a period of use, the aggregate diesel engine concrete mixer spout wear, when the the gap wear to diesel concrete pump supplier 20 ~ 30mm, the card into the larger stones entering the gap in the process of the door, the gravel can easily stuck (wedge force) , pneumatic door can not be opened. Concrete mixing station troubleshooting method. twin shaft concrete mixer process: Check the pneumatic valve clearance and adjust to the appropriate value, can not be adjusted to the appropriate value as a result of excessive wear, you need to add welding steel plate or round bar in the feed opening, the gap reached a reasonable value. Take gray tank top, conveying powder to jar. Failure phenomenon: the bulk cement truck screw conveyer for sale the powder tank pump ashes, cement tank top with powder smoke. Analysis: conveying powder to powder cans transported by compressed air, compressed air, the powder to the powder cans into the air, such as dust removal machine cement mixing machine supplier filter clogging dust mobile concrete batching plant collector filter tank top, compressed air can not discharged generated "pressureout, and when the pressure reaches the safety valve opening pressure of the tank top, the safety valve opens, the diesel concrete pump for sale compressed air and powder through the safety valve is vented to the atmosphere, resulting in the risk ash phenomenon. Another level gauge failure, powder filled continue feeding also appears to take the gray tank top phenomenon. Process: 1, check movable concrete batching plants tank top dust filter and clean-up. 2, Once the take Ash phenomenon appears, you must clean up the safety valve around the powder, avoid powder caking the rain plug the safety valve. 3, as a result of the powder overfilled and take the gray, you must check on the level meter and a the material full alarm device reliability. Belt rainy slip. Fault slip phenomenon: a rainy day, inclined belt with load operation. Analysis: rainy, a moisture in the aggregate, and belt exposed parts easy to wet, damp, especially the inner ring and wet belt to screw conveyor reduce the coefficient of friction between the belt and the drive rollers, so that the drum is passed to the reduction in the belt torsional torch, the torque less than the belt material handling required torque, belt slipping.