How To Easily Deal With These Faults When Horizontal Mining Sewage Pumps Encounter These Faults?

　　How to easily deal with these failures when horizontal mining sewage pumps encounter them?Horizontal mining sewage pumps have received more and more attention from people, from the original simple use to transport clean water to the ability to transport various domestic sewage, industrial wastewater, construction site drainage, liquid feed, etc.It plays a very important role in various industries such as municipal engineering, industry, hospitals, construction, hotels, and water conservancy construction.However, the key issue for sewage pumps is reliability, because the use is under liquid; the conveying medium is some mixed liquid containing solid materials; the pump is very close to the motor; the pump is arranged vertically, and the weight of the rotating parts is in the same direction as the water pressure under the impeller.These problems make the sewage pumps have higher requirements in terms of sealing, motor load-bearing capacity, bearing arrangement and selection than ordinary sewage pumps.In order to improve the life of horizontal mining sewage pumps, most domestic and foreign manufacturers have found solutions on the pump protection system, that is, they can automatically alarm when the pump leaks, overloads, overtemperature and other faults occur, and automatically shut down for repair.It is necessary to set up a protection system in the pump, which can effectively protect the safe operation of the electric pump.But this is not the key to the problem. The protection system is just a remedy after the pump fails, and is a relatively passive method.The key to the problem should be to start from the fundamental point and solve the pump's problems in sealing, overloading, etc. This is a more proactive approach.To this end, the sub-impeller fluid power sealing technology and the pump's overload design technology are applied to submersible sewage pumps, which greatly improves the pump's seal reliability and load-bearing capacity and extends the service life of horizontal mining sewage pumps.Common faults and methods for eliminating horizontal mining sewage pumps: 1. The pump cannot start or the starting load is large. The reasons and treatment methods are as follows: (1) The prime mover or power supply is abnormal.The method of handling is to check the power supply and prime mover.(2) The pump is stuck.The treatment method is to check with a hand-disassembled coupling, and if necessary, disassemble the inspection to eliminate some dynamic and static faults.(3) The filler is pressed too tightly.The treatment is to relax the filler.(4) The discharge valve is not closed.The treatment method is to close the discharge valve and restart.(5) The balance tube is not smooth.The treatment method is to clear the balance pipe.2. The pump does not discharge fluid. The reasons and treatment methods are as follows: (1) Insufficient pump filling (or the gas in the pump has not been discharged).The treatment is to refille the pump.(2) The pump is steering incorrectly.The treatment method is to check the rotation direction. (3) The pump speed is too low.The treatment method is to check the rotation speed and increase the rotation speed.(4) The filter is blocked and the bottom valve is not working.The treatment method is to check the filter and eliminate debris.(5) The suction height is too high, or a vacuum appears in the liquid suction tank.The treatment method is to reduce the upper height of the suction tank; check the pressure of the suction tank.3. The pump is interrupted after discharge. The reasons and treatment methods are as follows: (1) Air leakage in the suction pipeline.The treatment method is to check the sealing conditions of the pipe connection on the suction side and the packing box.(2) The gas on the suction side has not been discharged during the pump filling.The treatment method is to require refilling the pump.(3) The suction side is suddenly blocked by foreign objects.The treatment method is to stop the operation of the horizontal mining sewage pump and deal with foreign matters.(4) Insert a large amount of gas.The treatment method is to check whether there is a vortex in the suction port and whether the submersion depth is too shallow.