Do Old Centrifuges Deserve Another Turn? Various factors affect whether to repair or replace the troublesome units

摘要

I am appalled that the company has lived for some time with the problems.It seems no one is responsible.A two-prong approach might be necessary:1)learn to master the existing centrifuge;and 2)consider a new centrifuge.Existing centrifuge.It is a brave admission that these centrifuges never worked well.The very first thing I would do is contact the centrifuge manufacturer,discuss all the outlined issues and seek its advice.This is the least expensive solution.You company might learn about the current centrifuge and its workings.The process seems to be out of control as suggested by variations in solid concentration in the feed stream.This is confirmed by finer particles getting past the shaft seal.They need to be controlled.I would attempt to increase the residence time in the feed vessel to see if larger crystal size will reduce or eliminate finer particles getting to the seal shaft.Washing the solids in the seal suggests that the process requires more residence time for the crystals to grow.