Technology of microporous multiple tube membrane filter for purifying cooling water in continuous casting process
LIU Jian1, YUAN Zhang- fu2,ZHANG Xin1,XU Wei- fei1,ZHANG Li- na2, YANG Liu1
1. Jiangsu Shagang Group Co., Ltd., Zhangjiagang 215625, Jiangsu, China 2. Beijing Key Laboratory for Solid Waste Utilization and Management, College of Engineering, Peking University, Beijing 100871, China
Abstract：In order to achieve energy conservation and emission reduction and reduce water pollution and water consumption per ton steel in iron and steel industry, technology of filter for continuous casting cooling water in converter steelmaking process was studied, and a filter device whose filter element is porous PVC ceramic composite pipe was successfully developed. Sludge which was obtained by the porous PVC ceramic composite pipe filter was detected, and it was found that the porous PVC ceramic composite pipe filter had a good separation function. Water quality was detected before and after filtration, and it was found that turbidity and suspended solids of water significantly reduced after filtration, and water quality has reached the requirements. Through industrial experiments and nearly three years of practical application, the best operating conditions and backwash conditions of the porous PVC ceramic composite pipe filter were obtained.
2015, Vol. 25 
