• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Filter cake formed from a slurry is dried in a filter press comprising a plurality of filtration units (1) each having a chamber (6) bounded by a pair of opposed flexible walls each comprising a filter medium (5) and an outwardly located flexible membrane (8). The filter cake is formed and/or compressed in the chambers (6) by hydraulic fluid pressure acting on the flexible membranes (8). By means of pressure oscillations set up in the hydraulic fluid the filter cake in the chambers (6) is deformed by bowing to either side of an initial central plane alternately whereby drying is improved.
    公开号:SU1407389A3
    申请号:SU833679355
    申请日:1983-12-20
    公开日:1988-06-30
    发明作者:Вальтер Пирс Кеннет
    申请人:Ститли Рефрэкториз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method and apparatus for filtering sludges,
    The purpose of the invention is to increase the filtration efficiency.
    The drawing shows a device for filtering sludge, in which the filtration method, a general view, is carried out.
    The device consists of cameras 1,
    each of which has a pair of opposing flexible walls 2 of which at least one is formed by filtering element 3, means for feeding the starting product and withdrawing the filtrate, means for supporting the sludge in the chamber under pressure, and means for deforming the sludge.
     Means for deforming the sediment are made in the form of two convex poles 4 and 5 adjacent to the flexible walls, forming reservoirs 6 and 7 of the cavity which are filled with liquid and attached to the pump 8. One of the tanks 7 is equipped with a battery 9 filled with compressed gas and the other, capacity 6, is a piston 10 mounted on a rod;
    Cameras 1 are packaged between
    lids 4 and 5.
    Between the flexible wall 2 and the filtering element 3, between the filtering elements 3, between the adjacent chambers 1, between the flexible walls 2 and the crush 4 and 5 are annular elements 12 with radial holes 13. At the same time, the radial holes 13 of the ring elements 12 located between adjacent chambers 1 are connected by pipelines 14 to cavities of tanks 6 and 7, and radial holes 13 of ring elements 12 located between flexible wall 2 and filter element 3 ,, are connected with means 15 for filtrate solids. Usually, the entire device for filtering sludge consists of ten or more chambers.
    1. Each cover 4 and 5 has a ring; - a flange 16, which connects
    the outer flexible wall 2 of the chamber 1 and the cavity of the containers 6 and 7. In each cavity of the containers 6 and 7 is placed a hydraulic cylinder, the cylinder 17 of which is rigidly fixed on the corresponding cap 4, 5, and the piston 18 has a rod 19 located at its free end on the pressure plate 20 The battery 9 is connected to the cavity of the tank 7 by means of the pipe 21. The pipe 14 is connected to the pump 22 The feed channel (means for feeding the initial product) 23 passes from the entrance through the flange 10 of the cover 4 and through all the elements of each chamber 1 and ends in blind end flexible walls 2, overlapping the tank 7 in Kryshka 5. Chamber 1 is connected to the feed channel 23 through a radial hole 13. Sludge is fed into the feed channel 23 by means of a pump 8 and a pipe 24.
    The device works as follows.
    Sludge through the pump 8 through the feed channel 23 and the radial holes 13 enter the chambers 1, are compressed 5 and the liquid (filtrate) moves through the filter elements 3 and is discharged through the means 15 to discharge the filtrate. Then the supply line 2 4s is shut off and the pump 22 is operated so as to force the hydraulic fluid into strips of tanks 6 and 7 in cavities 4 and 5 and in chambers 1 to compress filter cake:
    The cylinders are withdrawn from the clamping plates 20 from the nearest flexible wall 2. Then the pressure of the hydraulic fluid in the tank 6 in the cover 4 is set by reciprocating movement of the piston 10.
    The flexible wall 2, which overlaps the cavity of the container 6, begins to bend in one direction or the other under the action of pressure waves, this movement passes through all the chambers 1 to the flexible wall 2, which overlaps the cavity of the container 7 in the crack 5. Filtered in the cameras 1, also bending in alternating directions, with the result that the liquid remaining in the filtered cake is removed.
    The alternating pressure in the cavity of the container 7 in the cylinder 5 is absorbed compressed by the gas filling the accumulator 9.
    After the liquid has ceased to be removed — out of the filtered filter, the latter is removed from the device in a known manner (by disassembling the press), then the press is assembled and prepared for subsequent use. The amount of liquid removed from the filtered meal depends on
    from the frequency and amplitude of the variable pressure produced by the piston 10.
    Example. The initial product (cake) is fed under a pressure of 6.5 kg / cm into a stationary chamber equipped with a pair of opposite flexible walls, at least one of which is formed by a filter element.
    The precipitate is drained for 3 minutes and deformed by folding a flexible wall. The sediment deformation in a compressed state is carried out in a chamber cyclically in alternating directions.
    权利要求:
    Claims (5)
    [1]
    Invention Formula
    1, a method of filtering sludge, which consists in feeding the initial product under pressure into a stationary chamber equipped with a pair of opposing flexible walls, at least one of which is formed by a filtering element, squeezing the sediment and its deformation by bending the flexible wall, increase filtration efficiency; sediment deformation in a compressed state is carried out cyclically in alternating directions in the chamber
    [2]
    2. A dp filtering device for chambers containing chambers, each of which has a pair of opposing flexible walls, of which at least one is formed by a filtering element, means for feeding the original product and withdrawing filtrate, means for maintaining the sludge in the chamber under pressure and means for deformation of sediment, i.e. so that JITO, in order to increase the filtration efficiency, the means for deforming the sediment is made in the form of two convex lids adjacent to the flexible walls forming containers,
    0 cavities of which are filled with liquid and attached to the pump, one of the tanks is supplied attached to a battery filled with compressed gas, and the other tank is
    5 with a piston mounted on a rod for movement, with this chamber being assembled into a package between the cr
    [3]
    3. The device according to claim 2, about tl and is the fact that it is equipped with ring elements with radial holes, while the ring elements are located between the flexible wall and the filter element, between the filter elements, between
    5 adjacent chambers between flexible walls and lids.
    [4]
    4. A device according to claim 2, characterized in that the radial holes of the annular elements located between adjacent chambers are connected to the cavities of the containers.
    [5]
    5. The device according to claim 2, wherein the radial openings of the annular elements located between the flexible wall and the filter element are connected to means for evacuating the filtrate.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1407389A3|1988-06-30|Method and apparatus for filtering slurries
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    US4826607A|1989-05-02|Method of and apparatus for filtering a slurry
    US5173196A|1992-12-22|Dewatering and compacting equipment with high pressure pumping arrangement
    US4211162A|1980-07-08|Process for the batch filtering of suspensions
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    SU850141A1|1981-07-30|Filter press
    SU583820A1|1977-12-15|Mineral suspension separator with intermittent cake discharge
    SU433293A1|1974-06-25|FULL FILTER UNAUTHORN ACTION
    JPS5830315A|1983-02-22|Filtering and dehydrating machine
    JP3796164B2|2006-07-12|Dewatering method and dewatering equipment for compressible slurry
    同族专利:
    公开号 | 公开日
    FI75500B|1988-03-31|
    DE3380201D1|1989-08-24|
    EP0113205B1|1989-07-19|
    FI834628A|1984-06-23|
    FI75500C|1988-07-11|
    GB2132105A|1984-07-04|
    GB8332550D0|1984-01-11|
    EP0113205A1|1984-07-11|
    FI834628A0|1983-12-15|
    US4565637A|1986-01-21|
    AT44657T|1989-08-15|
    GB2132105B|1987-04-29|
    DK590183A|1984-06-23|
    DK590183D0|1983-12-21|
    JPS59130508A|1984-07-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA708441A|1965-04-27|Hagglund Sven-Erik|Diaphragm filter press|
    US1705908A|1927-07-27|1929-03-19|Witt Jennings De|Deinking apparatus|
    US2724508A|1954-05-26|1955-11-22|Sun Oil Co|Separator for solid-liquid slurry|
    NL125713C|1961-05-29|1900-01-01|
    FR1363465A|1962-05-28|1964-06-12|Ciba Geigy|Advanced filter press|
    US3613563A|1969-07-07|1971-10-19|Mikhail Yakovlevich Meshengiss|Filter press|
    US3695440A|1969-08-30|1972-10-03|Inoue Kinzoku Kogyo Kk|Filter belt with means forming therewith plural pressure filter chambers|
    US3655049A|1970-11-19|1972-04-11|Sparkler Mfg Co|Method and apparatus for retaining and dislodging filter cake|
    GB1344160A|1971-12-21|1974-01-16|Kurita Machinery Manuf|Filter press|
    CA996470A|1972-03-06|1976-09-07|Akitoshi Iwatani|Filter press|
    CH557194A|1972-10-28|1974-12-31|Bellmer Geb Kg Maschf|FILTER PRESS.|
    CA1013268A|1973-04-05|1977-07-05|Hydronautics|Separator involving coalescer regenerable by compression|
    JPS5092558A|1973-12-21|1975-07-24|
    GB1512960A|1974-11-23|1978-06-01|Sulzer Ag|Method and apparatus for dewatering of slurries etc|
    DE2940045C2|1979-10-03|1989-04-20|Hans 7534 Birkenfeld De Kuebler|
    GB2077131B|1980-05-30|1984-03-14|Gec Diesels Ltd|Filtration|
    DE3027997C2|1980-07-24|1983-10-27|Judo Wasseraufbereitung Gmbh, 7057 Winnenden|Self-cleaning filter for water supply systems|
    US4397746A|1982-01-28|1983-08-09|Kratochvil Russell F|Diaphragm type cake compressor for filter presses|
    US20030215081A1|2002-05-15|2003-11-20|Souza Lopes Vicente Melillo De|Triggerless call type blocking system and method in a telecommunications network|GB2162078A|1984-07-24|1986-01-29|Johnson Progess Limited|Filter press|
    FR2586360A1|1985-08-20|1987-02-27|Maguin Ste Nle Ets|Improved filter press|
    EP0238668B1|1985-09-06|1993-12-15|Kurita Machinery Manufacturing Company Limited|Filter press|
    GB2189403B|1986-04-21|1989-11-29|Steetley Refractories Ltd|Method of and apparatus for filtering a slurry|
    US4883592A|1986-09-03|1989-11-28|Kurita Machinery Manufacturing Co., Ltd.|Filter Press|
    DE3772961D1|1987-01-29|1991-10-17|Lenser Kunststoff Press|FILTER PRESS WITH A NUMBER OF MEMBRANE FILTER PLATES.|
    US5174900A|1989-03-24|1992-12-29|The Standard Oil Company|Apparatus for separation and for treatment of fluid feedstreams, wafers for use therein and related methods|
    US5164081A|1989-03-24|1992-11-17|The Standard Oil Company|Apparatus for separation and for treatment of fluid feedstreams, wafers for use therein and related methods|
    JP2678407B2|1991-04-19|1997-11-17|極東開発工業株式会社|lift device|
    JP2678408B2|1991-04-19|1997-11-17|極東開発工業株式会社|lift device|
    JPH04334630A|1991-05-10|1992-11-20|Kyokuto Kaihatsu Kogyo Co Ltd|Elevator device with safe drive circuit|
    US6149806A|1995-05-12|2000-11-21|Baer; William|Two piece frame and two piece diaphragm filter plate|
    US5934978A|1997-08-15|1999-08-10|Advanced Micro Devices, Inc.|Methods of making and using a chemical-mechanical polishing slurry that reduces wafer defects|
    AU4223600A|1999-04-06|2000-10-23|Compositron Corporation|Fluid optimization and waste management system|
    ITPD20120190A1|2012-06-12|2013-12-13|S P Srl|MECHANICAL FILTRATION PROCEDURE FOR SLUDGE DEHYDRATION AND ACTIVATING FILTERS|
    CN110467296A|2019-10-14|2019-11-19|广州环投环境服务有限公司|A kind of garbage leachate treatment device and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8236501|1982-12-22|
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