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    • 1. 发明申请
    • PROCESS FOR FILTRATION OF FLUIDS AND FILTER APPARATUS FOR PERFORMING THE PROCESS
    • 用于过滤流体和过滤器的过程用于执行过程
    • US20130168330A1
    • 2013-07-04
    • US13634085
    • 2011-03-10
    • Stefan StrasserRoman GrösswangJohannes KneisslGeorg EislKlaus Brandt
    • Stefan StrasserRoman GrösswangJohannes KneisslGeorg EislKlaus Brandt
    • B01D29/66
    • The invention relates to a process for filtration of fluids, especially of aqueous media, by means of a backflush filter apparatus consisting of a cylindrical housing, a cylindrical and perforated support body installed coaxially therein, a filter material, a support fabric, and a mobile backflush device present therein, said process enabling improved removal of fine and ultrafine particles, and of particles with greasy or compressible consistency, and allowing higher solid concentrations. The process according to the invention has the steps below. a) Formation of a filtercake in the perforation of the support body; b) deposition of the relatively fine particles or of the particles with greasy or compressible consistency on or in the filtercake; c) backflushing after attainment of the predefined filter loading or of the maximum permissible pressure differential, or when the filtrate volume flow goes below a minimum. A further aspect of the invention is a filter apparatus for performance of the process, characterized in that the filter material consists of a filter fabric with an air permeability of 700-1300 l/m2s at pressure differential 200 Pa.
    • 本发明涉及一种通过反冲洗过滤装置过滤流体,特别是水性介质的方法,所述反冲洗过滤装置由圆柱形壳体,与其同轴安装的圆柱形和多孔支撑体组成,过滤材料,支撑织物和移动 反冲洗装置存在于其中,所述方法能够改善精细和超细颗粒的除去,以及具有油脂或可压缩稠度的颗粒,并允许更高的固体浓度。 根据本发明的方法具有以下步骤。 a)在支撑体的穿孔中形成滤饼; b)将相对较细的颗粒或具有油腻或可压缩稠度的颗粒沉积在滤饼上或滤饼中; c)达到预定的过滤器装载或最大允许压力差之后或当滤液体积流量低于最小值时进行反冲洗。 本发明的另一方面是用于实施该方法的过滤装置,其特征在于,所述过滤材料由压差为200Pa的透气度为700-1300l / m 2的过滤织物组成。