Abstract: Since the production of LuHai coal preparation plant, Its pressure filtration system exsits site health capacity, high noise, the lack of mobility equipment operation, waste of energy and other issues. We focus on the actual situation to determine the system transformation plan, which fast opening filter anti-hair system transformation reduces site health pollution and noise pollution problem fundamentally. Interlocking Reconstruction Filter and transport scraper machine eliminates equipment failure due to excessive blocking pressure caused by the accumulation of material. Broken bread device reduces the labor intensity of workers, solves the big cake into the feeding chute which occurr warehouse accident probability, eliminates the security risks of artificial dredge coal. Coal coal-water separation scraper transformation reduces the moisture content of the coal transformation products, reducing the labor intensity of the driver job. The filtrate water recycling transformation make full use of the filtrate water filter press, saves water energy. Transformation of the system improves the human, machine safety, in order to achieve the standardized requirements of field work.