On the basis of investigation and applica-tion,the single -diaphragm is repla ced by the box-type double-diaphragm plate filter press with high efficiency,which has achieved sati sfactory effect.

• 针对南钢历年来在高炉煤气洗涤水污泥脱水处理中遇到的压滤机的问题,指出了单隔膜压滤机的缺陷,并在充分调研和实际应用的基础上改用厢式双隔膜高效板框压滤机,取得了较好的效果。