FILTER FOR CLEANING LIQUIDS Russian patent published in 1995 - IPC

FIELD: filters. SUBSTANCE: grain charge 12 is kept on intermediate bottom 3 arranged inside housing 1. Secured on bottom 3 are drain members whose upper portion 6 is perforated (for example, in form of stack of vertical plates) and lower portion is provided with branch pipe having hole in lateral wall. Lower end of branch pipe is provided with blank 8 having rod 10 mounted for vertical motion till it rests against bottom 2; it is also used as additional support for bottom 3, thus decreasing usage of metal. Since upper portions of drain members are mounted flush with upper plane of intermediate bottom, conditions are created for wider adapting volume of filtering material, thus increasing the filter throughput. EFFECT: increased throughput of filter and reduced usage of metal. 2 dwg