公开(公告)号：US3862036A

公开(公告)日：1975-01-21

申请号：US33950773

申请日：1973-03-09

Applicant: WIX CORP

Inventor： SIMMONS PHILLIP J

IPC: B01D29/00 ,  B01D29/01 ,  B01D29/38

CPC classification number: B01D29/01 ,  B01D29/66

Abstract: Apparatus and method for filtering solids from liquid, including filter means, pump means and valve means operatively connected to one another in conduit means to alternately cause a substantially uniform flow rate forwardly through the filter for a predetermined time of from about 0.0001 seconds to about 1.0 second, and then to cause a substantially uniform flow rate of the filtered liquid reversely through the filter for a predetermined time of from about 0.0001 seconds to about 1.0 second, the ratio of filtered time to non-filter time being substantially greater than 1:1, and not greater than about 15:1, to effect rapid cyclic filtration of solids from the liquid and to maintain a substantially fluidized, non-compacted bed of solids in front of the filter and to obtain a much higher net flow rate of filtered liquid than heretofore obtained, the net flow of liquid through the filter approaching that of a clean liquid through a clean filter.

Abstract translation: 用于从液体中过滤固体的装置和方法，包括过滤装置，泵装置和阀装置，其在导管装置中可操作地彼此连接，以交替地使基本上均匀的流速向前流过过滤器约0.0001秒至约1.0的预定时间 然后将过滤的液体的流速基本上均匀地反过来通过过滤器约0.0001秒至约1.0秒的预定时间，过滤时间与非过滤时间的比例大致大于1:1 ，并且不大于约15:1，以实现固体从液体的快速循环过滤并且在过滤器前保持基本上流化的未压实的固体床，并且获得高得多的净过滤液体的净流速 比以前获得的，通过过滤器的液体的净流量通过干净的过滤器接近洁净液体的净流量。