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How to solve some faults of Submersible slurry pump

2013-09-09
Submersible slurry pump Submersible slurry pump is the cantilever pump structure of single stage and single suction, with the bearing housing, supporting, intermediate pipe connecting the  pump hydraulic components, the water is discharged out from the drain pipe parts, pump impeller is for semi-shrouded with the agitating vane on the vane extended, the main characteristic of this pump is the underwater pump shaft parts have enough rigidity, the impeller and pump shell have no bearings, no shaft seal, which can transport the greater medium of solid particles. The length of inserting the water by slurry pump is between 800 and 2000, the suction pipe can be matched in case of need. 

Below are four faults that Submersible slurry pump may occur and solutions.

1 Submersible slurry pump don’t absorb water.
The reasons of submersible slurry pump don’t absorb water have many possibility, the most main reasons are due to suction pipe block and impeller damage. To solve this problem, the main method is clean suction pipe blockage and repair or replace impeller.

2 Submersible slurry pump power is too large.
The reasons of too large submersible slurry pump power mainly include excessive packing compaction, friction in pump, bearing damage and pump roll quantity is too large. Solutions of the four faults are unscrew packing gland bolt, adjust the gap in pump, repair or replace damaged bearing, regulating the operation of pump.

3 Submersible slurry pump bearing fever
The reasons of submersible slurry pump bearing fever generally due to lubricating oil and bearing, include not clean lubricating oil, lubricating oil in bearing is too much or too little, bearing damage, etc. The main solutions are use clean lubricating oil, according to the requirements add lubricating oil for bearing, repair or replace new bearing.

4 Submersible slurry pump bearing life is short.
Submersible slurry pump bearing short life is due to friction in pump, impeller unbalanced, foreign body in bearing, unreasonably equip bearing, centre shaft is tortuous. Solutions are adjust impeller balance or replace new impeller, clear bearing foreign body, equip bearing again, change centre shaft.