Through the analysis of the working condition of the cinder pump, rational reform and model change were carried out, based on pipe network and pump characteris The real running efficiency of cinder pumps was enhanced considerably.

Characteristic anlysis and material selection of high chromium cast iron for transflux parts of slurry pump;

Application of “cold welding” technique in restoring slurry pump;

A study on wearing mechanism and Finite Element Analysis of centrifugal slurry pump;

A new-type non-contacting bellow mechanical seal was developed for residual oil pumps in refineries through analyzing reasons of frequent failure of contacting bellow mechanical seals.

For example,the application of frequency speed regulation in large capacity cascade slag pumps was described in this paper.

The ash pump supporting No.

The reason of the pipe below the critical deposition velocity slurry flow rate of subsidence occurred was analyzed in the power plants ash slurry transportation system,the need for the accounting of the settlement velocity was validated in the example using the formula critical deposition velocity,which is helpful for rationally determine the diameter in choosing ash pump.