CHEN Chen;MIN Fanfei;CHEN Shuai;SUN Yinglin;DU Jia;LIU Chunfu;College of Materials Science and Technology,Anhui University of Science and Technology;To improve the effects of slime pressure filter,the advantages,disadvantages,application status,influencing factors of pressurefilter commonly used in coal preparation plant were analyzed. The frame filter press had the advantages of simple structure,wide applica-tion,strong adaptability,low moisture and high recovery of solid phase,while the structure and material limited its further development. Thebelt filter press had multi-step dehydration process which improved dehydration efficiency,while the belt filter press needed a separatefeeding system to stabilize feeding quantity. Based on the traditional pressure filter,the quick-operating diaphragm filter press had moredewatering ways,which had the high pressure fluid squeeze,diaphragm squeeze and the improving design of airflow passing through fil-ter cake dehydration. The advantages of the filter had lower moisture,good molding,reliable safety and saving energy,etc. The developmentof filter equipment should focus on large-scale,high efficiency,automation. A new type of filter medium should be developed,the processshould be simplified,no-feeding system of continuous press filter should be designed,the degree of intellectualization should be enhanced.
2015 06 v.21;No.100 [Abstract][OnlineView][Download 1270K]