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公开(公告)号:EP0372083A1
公开(公告)日:1990-06-13
申请号:EP89903207.2
申请日:1989-03-15
发明人: TAKAHASHI, Yuichi , AZUMA, Katsuji
CPC分类号: B01D33/17 , B01D33/073 , B01D33/21 , B01D33/54 , B01D33/705 , B01D33/72 , B01D33/722 , B01D33/727 , B01D33/763 , B01D2201/282
摘要: In a slurry filtering apparatus having valves and valve seats of abrasion-resistant metal, a pump pressurizes and ejects a slurry containing hard particles at a high concentration. The flow of slurry is forced upon a filter surface in a direction oblique to it. Since the ejection of slurry causes cavitation and abrupt changes in velocity in the flow, shearing forces are created to scatter larger particles. This prevents filter-cake deposition while permitting parallel-flow filtration.
摘要翻译: 在具有耐磨金属的阀和阀座的浆料过滤装置中,泵以高浓度对含有硬质颗粒的浆料进行加压和喷出。 浆料的流动沿着与其倾斜的方向被迫在过滤器表面上。 由于浆料的喷射导致流动中的气蚀和速度的突然变化,所以产生剪切力以散射更大的颗粒。 这可以防止滤饼沉积,同时允许平行流过滤。