台州电厂原除灰系统经１０余年运行，已不能满足输灰需要，必须进行改造。经过详细的技术经济比较，决定将旧泵全部更换为新型高效高扬程灰渣泵，并对轴封漏水等问题进行了改造。改造后输送压力有了很大提高，而且比改造前更加安全、经济、高效，泵房环境更加洁净，为远距离输送高浓度灰浆作了有益的尝试。 Taizhou power plant original ash system after more than 10 years of operation, has failed to meet the ash needs, we must transform. After a detailed technical and economic comparison, it was decided to replace all the old pumps with a new type of high-efficiency high-lift ash pump and to reform the shaft seal leakage problems. After transformation, the delivery pressure has been greatly improved, and it is safer, more economical and more efficient than before the transformation. The pump room environment is cleaner and a beneficial attempt is made for the transportation of high-concentration mortars over long distances.