• 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:
    For the batch filtration of suspensions by application of external pressure, after the pressing of the suspension in the press-chamber space and before entrance of the resultant press cake into at least one subsequent press-chamber space the structure of the press cake is changed by shearing forces and the press cake is curved and at least partially torn apart. In the case of municipal sludge the flaked sludge is subjected in a first pressing zone to slow increase of pressure and a pressure of up to about 1 bar and then is subjected in at least one following press zone to a pressure increase which is more rapid than in the first press zone, up to a pressure of about 3 bars.
    公开号:SU1058486A3
    申请号:SU782613104
    申请日:1978-05-04
    公开日:1983-11-30
    发明作者:Бастген Вендель
    申请人:Алб,Кляйн Кг Гмбх Унд Ко Кг (Фирма)；
    IPC主号:
    专利说明:

    2. The filter press according to claim 1, characterized in that the plates of the press chambers are made with elastic protrusions along the edges.
    3, the filter press according to claim 1, wherein the drive of the movable plate of each press chamber is made in the form of a power cylinder.
    f. The filter press according to claim 1, characterized in that the press chambers are U-shaped,
    5. Filter press according to claim 1, characterized in that at least one of the plates of the press chamber is made in an iid of an elastic surface, for example in the form of a membrane.
    The convention refers to devices for intermittently filtering the slurry in the bale chamber under the influence of external pressure.
    A filter lnpecc is known that contains injection pads connected in series with each other and filtration bags l.
    However, emptying the injection pads and filter bags takes a lot of time and is difficult. In addition, in such filtration chambers, an insufficient degree of pulp dehydration is achieved, especially viscous, even when passing it through several filtration chambers located one behind the other.
    The closest in technical essence and the achieved result to the proposed is a filter press containing two endless filtering sheets passing through the press chamber mounted on guide drums and rollers
    2
    A disadvantage of the known device is the low productivity in the treatment of sludge with high moisture content.
    The purpose of the invention is to increase productivity with a reduced moisture content of the sediment.
    This goal is achieved by the fact that the filter press for suspensions, for example, sewage sludge, containing two endless filter sheets passing through the press chamber, mounted on guide drums and rollers, is equipped with a guide drum and an additional press chamber located behind the main press chamber, wherein each press chamber is made in the form of two plates, one of which is installed with the possibility of movement in the direction to the other and is equipped with a drive, and filtering; canvases are located between the plates of the press chambers.
    The plates of the press chambers are made with elastic protrusions along the edges.
    The drive of the movable plate of each press chamber is made in the form of a power cylinder.
    Press chambers are U-shaped. but.
    At least one of the plates of the press chamber is made in the form of an elastic surface, for example in the form of a membrane.
    Fig, 1 shows the filter press, a general view; Fig. 2 is a graph of the amount of pressed precipitate versus the duration of the pressing process.
    The filter press consists of three 5 U-shapedly arranged in relation to each other press chambers 1-3, formed from fixed 4 and movable 5 plates. Each movable plate 5 is connected by a stand 6 to a piston 7 loaded with a cylinder 0 placed in a cylindrical chamber 8, which is hydraulically compressed by means of compressed fluid through nozzles 9 and 10 to reposition the movable plate 5 5 in the direction of the fixed plate 4.
    Plates 4 and 5 are made with elastic protrusions 11 and a sealing element 12 is placed between them. Between
    0 press chambers pass two filtering: webs 13 and 14, which between adjacent press chambers 1, 2 and 2, 3 are laid on guide drums 15 of radius r, with angle
    35 girth oi; may be, for example, 90. In the installation, additional guide rollers are provided. 16 for the filter sheet. Suspension, filter cloth served through the narrow gall 17,
     Filter press works as follows.
    With a considerable distance between the plates 4 and 5 of the press chambers, 45 are served. dewatering suspension. Then the piston 7 and simultaneously with it the plate 5 are moved towards the fixed plate 4, creating the pressure required for the filtration process. Due to the increase in pressure behind the piston, the 7-slurry is forced through the filter webs by 13 and 14 and fills the grooves of the plates 4 and 5 of the press chamber 1. As the filter residue decreases, the hydraulic pressure of the piston 7 moves away from the fixed plate 4 and the sediment transported to the next bale chamber 2. At the same time, the filter sheets 13 and 14, along with the sediment between them, bend the guide roller 15, and shear forces are generated in the compressed sediment leading to structural changes. and m in it. The filtering process is similarly repeated in the second bale chamber 2f, and more pressure is generated here than in the bale chamber 1. Next, the precipitate is sent to the press chamber 3. After the filtration process is completed, the pressed precipitate in the last press chamber 3 is; between endless filter webs 13 and .14, passes through {Guide roller 18, which is simultaneously at the same drive shaft for transporting filter cloth 14. At the same time, pressed sediment
      .

    is
    Reese. 2 is loosened and scraped 19. Another filter sheet is synchronously or at a differential speed driven by a drive shaft 20. Both our 18 and 20 drive wheels are connected to an electric motor 22 through a pair of gear wheels 21. Filter cloths 13 and 14 return to the narrow groove 17 through the guide roller 16, the washing device 23. Figure 2 shows the relationship between the pressing time and the amount of compacted sludge. Based on the obtained dependency, it is POSSIBLE to conclude that a high degree of dehydration is achieved only with sufficiently delicate pressing. The process can be repeated an unlimited number of times to achieve the desired degree of dehydration. In this case, in the proposed device, a certain amount of filtrate is extruded in a shorter time than in the known one, and at the same total pressing time, a much larger amount of pressed sediment is obtained.
    权利要求:
    Claims (5)
    [1]
    . 1. FILTER PRESS FOR SUSPENSIONS, for example, sewage sludge, containing two endless filter sheets passing through the press chamber installed on the guide drums and rollers, characterized in that, in order to increase productivity with reduced sludge moisture content, it is equipped with a guide a drum, an additional press chamber, located behind the main <press chamber, with each press camera made in the form of two plates, one of which is installed with the possibility of moving in the direction K of the other and sn abzhena drive, and filter cloth located between the plates of the press chambers.
    Phi. " one
    [2]
    2. Filter press according to π. 1, characterized in that the plates * of the press chambers are made with elastic protrusions at the edges.
    [3]
    3, The filter press according to claim 1, characterized in that the drive of the movable plate of each press chamber is made in the form of a power cylinder.
    [4]
    4. Filter press according to π. 1, with the fact that the press chambers are arranged U-shaped,
    [5]
    5. Filter press according to π, 1, characterized in that at least one of the plates of the press chamber is made in the form of an elastic surface, for example, in the form of a membrane.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1058486A3|1983-11-30|Filter press for slurries
    US3896030A|1975-07-22|Filter press, particularly for dewatering sludge in sewage treatment plants
    US4181616A|1980-01-01|Device for dewatering sludge or the like
    US3613563A|1971-10-19|Filter press
    US4147101A|1979-04-03|Press for dehydrating fibrous materials and other substances
    US5173196A|1992-12-22|Dewatering and compacting equipment with high pressure pumping arrangement
    US4168236A|1979-09-18|Consecutive, independent dewatering apparatus for improved sludge treatment
    CA1069378A|1980-01-08|Consecutive, independent dewatering apparatus and method for improved sludge treatment
    US4155830A|1979-05-22|Filter press
    US4105560A|1978-08-08|Filter plate shifter
    US3063362A|1962-11-13|Two-apron press
    SU1037828A3|1983-08-23|Belt filtering machine for continuous dehydration of slurries
    US3330206A|1967-07-11|Continuous filter press
    US4676902A|1987-06-30|Separation apparatus including relatively movable presser module and filtration belts
    GB1479318A|1977-07-13|Dewatering of slurries
    US3812971A|1974-05-28|An apparatus for dehydrating a slurry
    US4142461A|1979-03-06|Device for dewatering sludge and other material containing water and solid particles
    RU2104743C1|1998-02-20|Belt filter press
    CA1121210A|1982-04-06|Apparatus for dewatering materialwith high water content
    SU1045900A1|1983-10-07|Band filter press
    RU2104744C1|1998-02-20|Belt filter press
    SU1666148A1|1991-07-30|Belt filter press
    RU192467U1|2019-09-17|Screw filter - press
    US4059527A|1977-11-22|Pretreatment filter press dewatering system
    SU1082458A1|1984-03-30|Band filter press
    同族专利:
    公开号 | 公开日
    DE2720178C2|1979-03-08|
    US4276822A|1981-07-07|
    DE2720178B1|1978-06-01|
    GB1588618A|1981-04-29|
    BE866704A|1978-09-01|
    GR64089B|1980-01-21|
    PT67986B|1979-10-22|
    IT7823069D0|1978-05-05|
    AT371357B|1983-06-27|
    FI781368A|1978-11-06|
    SE7805097L|1978-11-06|
    BR7802835A|1978-12-12|
    ZA782575B|1979-05-30|
    YU173782A|1983-10-31|
    IE46633B1|1983-08-10|
    YU44027B|1990-02-28|
    ATA295078A|1982-11-15|
    HU178596B|1982-05-28|
    FR2389401A1|1978-12-01|
    YU105878A|1982-10-31|
    FI66760C|1984-12-10|
    US4211162A|1980-07-08|
    AU3581178A|1979-11-08|
    IE780892L|1978-11-05|
    NO781579L|1978-11-07|
    DK195178A|1978-11-06|
    NL7804595A|1978-11-07|
    YU41473B|1987-08-31|
    DD135446A5|1979-05-09|
    JPS5415574A|1979-02-05|
    IT1158701B|1987-02-25|
    ES469506A1|1979-02-01|
    FI66760B|1984-08-31|
    JPS602889B2|1985-01-24|
    CS216912B2|1982-12-31|
    PL206615A1|1979-04-09|
    PT67986A|1978-06-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1165986B|1955-08-04|1964-03-19|Voith Gmbh J M|Device for thickening fiber suspensions|
    US3232219A|1963-08-05|1966-02-01|Gunkel Otto|Fruit press|
    US3613563A|1969-07-07|1971-10-19|Mikhail Yakovlevich Meshengiss|Filter press|
    US3942433A|1972-07-07|1976-03-09|Maschinenfabrik Andritz Ag|Roller arrangement in presses for the removal of water from materials|
    JPS49106656A|1973-02-15|1974-10-09|
    US4019431A|1973-03-17|1977-04-26|Alb. Klein Kg|Method of dewatering sludge|
    GB1418577A|1973-05-29|1975-12-24|Machinenfabriek W Hubert Co Bv|Method and apparatus for dewatering sludge|
    US3922963A|1974-06-11|1975-12-02|Martin I Sanderson|Fruit press|
    US4168236A|1975-03-07|1979-09-18|Albert Bahr|Consecutive, independent dewatering apparatus for improved sludge treatment|
    SE386151B|1975-04-09|1976-08-02|Nordstjernan Rederi Ab|PROCEDURE AND METHOD FOR DRAINING A SUSPENSION, SPEC.SLAM|JPS6150078B2|1979-04-02|1986-11-01|Hitachi Plant Eng & Constr Co|
    DE2924277C2|1979-06-15|1987-05-07|Bhs-Bayerische Berg-, Huetten- Und Salzwerke Ag, 8000 Muenchen, De|
    JPS5817720B2|1979-06-30|1983-04-08|Yoshio Suetsugu|
    US4395331A|1979-07-09|1983-07-26|Ab Saffle Gjuteri And Mekaniska Verkstad|Apparatus for pressing liquid out of material containing liquid|
    FR2503578B1|1981-04-13|1987-07-17|Guinard Separation|DRIVER FILTRATION SYSTEM PASSING BETWEEN CLAMPING PLATES|
    FR2507098B1|1981-06-04|1985-11-15|Choquenet Sa L|DEVICE FOR FILTERING FLUIDS FILLED WITH SOLID PARTICLES|
    DE3221435C2|1982-06-07|1985-10-31|Hitachi Plant Engineering & Construction Co., Ltd., Tokio/Tokyo|Belt filter press for dewatering thickened sewage sludge|
    DE3402165A1|1984-01-23|1985-07-25|Rudolf Pausch GmbH, 7530 Pforzheim|Filter press|
    FR2568139B1|1984-07-25|1989-06-16|Degremont|APPARATUS FOR SEPARATING THE LIQUID PHASE OF A SOLID-LIQUID SUSPENSION|
    DE4118783C2|1991-06-07|1994-06-09|Klein Alb Gmbh Co Kg|Process and plant for the multi-stage treatment of sludge or press cake|
    DE19522133C2|1995-06-19|1997-07-17|Ulrich Dipl Ing Franze|Filtration system for the separation of solid particles|
    US6167637B1|1998-03-03|2001-01-02|Yuuji Nagase|Dehydrating method and hydroextractor|
    US6190566B1|1998-06-23|2001-02-20|Steven N. Kolber|Treatment of waste produced by farm animals raised under confined conditions|
    US7074337B2|2002-08-12|2006-07-11|Jeffrey S. Melcher|Methods and apparatuses for filtering water|
    US7998344B2|2002-08-12|2011-08-16|Miller Robert L|Methods and apparatuses for filtering water from oil and gas wells|
    WO2004035172A1|2002-10-14|2004-04-29|The North West University|Method and apparatus for extracting liquid from a bed of granular solids|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE772720178A|DE2720178C2|1977-05-05|1977-05-05|
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