• 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:
    Band filter devices for continuously dewatering a suspension, such as sewage sludge comprising an upper filter band stretched between deflection rolls, the upper strand of which forms a filter zone, and a further filter band which together with the lower part or strand of the first band forms a compressing zone. The filter band is stepped at least once in a Z-shaped manner in the filter zone by providing a further deflection roll which is positioned lower than and downstream of the first deflection roll but in a position counter to the direction of transport, and such that between two filter zones there is a zone where the sludge cake is transferred to another part of the band and rearranged. Above the upper strand or part is at least one ram or beam which lies transverse to the direction of transport and the ram can be pressed into the sludge cake to produce transverse grooves or channels in the sludge cake.
    公开号:SU1037828A3
    申请号:SU792851656
    申请日:1979-12-12
    公开日:1983-08-23
    发明作者:Бастген Вендель
    申请人:Альб.Кляйн Гмбх Унд Ко,Кг (Фирма)；
    IPC主号:
    专利说明:

    2, The machine according to claim 1, distinguishes from 1d so that the filtrate collection chambers are equipped with outlet nozzles located above each branch of the Z-shaped stage and having a width equal to the width of the belt sieve, while the nozzle of the last filtrate collection chamber is installed above the pressing zone draft.
    3. The machine according to claim 1, characterized in that the compressing organ for the sediment is a press stamp made in the form placed between two disks / a double-cone cell extending from the middle of the belt screen to its outer sides, mounted above the upper belt sitcom before the first guide roller, wherein the press stamp is installed with the possibility of discrete pressing against the bushing.
    4. The machine according to claim 1, wherein the press shtamp disks are provided with a rotation drive.
    5. The machine according to claim. 1 / O TL and; h and so that the press stamp is equipped with a hydraulic cylinder with a piston;
    one ;
    The invention relates to devices for continuous dewatering of suspensions by filtration, in particular sewage sludge.
    A device for dewatering sludge, comprising an endless belt sieve, forming parallel upper and lower branches, is known. The upper belt sieve forms a straining zone for the sludge C 1 fed therein.
    The drawback of the device lies in the fact that its performance is oi-differentiated by the resistance of the filter, / which solid particles precipitating on the screen sieve counteract the further passage of the filtrate from the upper part of the suspension. To improve the gravitational filtration, a vacuum chamber is installed, which leads to significant additional energy consumption and increased wear of the belt screen. The precipitating solids are removed from the belt sieve with scrapers attached to the rotating shafts of the rocking discs. However, the technical costs of devices of this kind are significant, and their impact is limited to a small area located in close proximity to the belt sieve, and part of their use leads to sticking of the belt sieve.
    Closest to the invention of the technical essence and the achieved result is a machine comprising infinite belt sieves tensioned on guide rollers, a filtering zone on the upper branch of the upper belt sieve, a sludge pressing zone located between parallel branches of belt sieves and a collection chamber filtratej attached to zones
    filtering and pressing the sediment 2.
    However, the known device is characterized by insufficient filtration efficiency.
    The purpose of the invention is to increase the filtration efficiency by maximizing the use of coagup nta.
    The goal is achieved by the fact that in a machine containing infinite belt sieves, a filtering zone on the upper branch of the upper belt sieve, tensioned on the guide rollers, a squeezing body for sludge is located above the upper sieve belt, a sludge pressing zone located between parallel branches mi belt sieves, and the filtrate collection chambers, attached to the filtration and sediment collection zones, the roller guide, located below the previous guide roller, are shifted in the opposite direction leniyu sediment transport, wherein the upper belt of the sieve is formed by at least one Z-shaped stage.
    Moreover, the filtrate collection chambers are equipped with outlet nozzles located above each Z-shaped branch with an upstream and having a width of different width of the screen sieve, while the nozzle is installed above the sludge compression zone.
    In addition, the compressing organ for the sediment is a press stamp made in a double-conical cell disposed between two discs, extending from the middle of the screen sieve to its outer sides mounted above the upper screen sieve in front of the first guide roller, while with the possibility of discrete pressure to the draft.
    In this case, the press die discs are provided with a rotation drive.
    Press stamp hydraulic cylinder with a piston.
    FIG. 1 shows a filter belt filter, general view; in fig. 2 g is the same, another option; in fig. 3 - section AA 2; in fig. 4 - press stamp, general view; in fig. 5 is a view B in FIG. four.
    The filter belt machine consists of two endless belt screens 1 and 2. Sieve 2 is tensioned on the drive drum 3 and guide rollers 4. Upper sieve 1 is tensioned on the drive drum 5 and guide rollers b and 7. Between the lower branch 8 - the upper belt screen 1 and the upper branch 9 of the lower belt screen 2 are formed
    pressing zone 10.
    one -
    The device according to the second variant (Fig. 2) consists of an endless belt sieve 1, which is moved by a driving drum 5 and loaded with a suspension on the upper and two guide rollers 7 through the loading chute 11. A layer 12 of sediment is formed on the upper branch of the screen sieve, and for collecting . the filtrate is intended to receive. bath 13. The machine is equipped with a pressing body - a press stamp 14, which moves up and down in a certain rhythm, the piston 16 is installed in the hydraulic cylinder 15, and during each downward movement produces channels 17 in the sediment layer 12. The belt sieve 1 has at least one Z-shaped stage formed by pojiHKa guides, mi 18 and 19, shifted in the direction opposite to the direction of sludge transportation. The filtrate of the first straining zone 20 is directed through the exit nozzles 21 of the bath 13 to the returning sieve 1 between the guide rollers 18 and 19, where it serves to clean the sieve 1 from the adhering sludge particles. Similarly, the filtrate of the second straining zone 22 can be directed through the outlet nozzles 2 to the bottom branch of the belt sieve moving backwards. 1 and wash it. If cleaning with a filtrate is not enough, a nozzle 24 is provided.
    The press stamp 14 consists of end discs 25 mounted on a horizontal axis of 26 round rods 27 so that they form an outwardly double bilge cage 28 that extends from the Center of the belt to the outside 12
    draft channels 17, having a slope from the middle of the tape to the outside. The end discs 25 move with their peripheral edges 29 on the edge strips of the belt screen 1 and are driven by them in rotation. The end discs 25 can be equipped with a rotation drive (not shown) and through the belt of one of the guide rollers b, 7, 18 and 19 rotate with a circumferential speed corresponding to the speed of the belt. -The machine works as follows.,
    The initial suspension, such as sewage sludge, is directed through the loading chute 11 to the upper branch of the endless belt sieve 1. The sludge formed on it, having reached the press stamp 14, is compressed by discrete pressing to the sludge by means of a hydraulic cylinder 15 with a piston 16. The filtrate of the upper branch is collected in the bath 13 and then through the nozzle 21 is directed to the upper branch of the Z-shaped belt screen stage located between the guide rollers 18 and 19 and washed with it. The filtrate flowing out of the exit nozzle 21, washes the lower branch of the Z-shaped stage, and from the nozzle 23 - the lower branch 8 of the belt sieve 1. Due to the fact that the lower branch 8 of the ribbon sieve 1 and the upper branch 9 of the belt sieve 2 is formed pressed and dehydrated is removed. A nozzle 24 is provided for the regeneration of the belt screen 2.
    Thus, thanks to equipping the machine with a press stamp of the proposed design, making the upper belt screen in the form of at least one Z-shaped stage, the output nozzles of the filtrate are placed above each branch. high filtration efficiency is achieved due to the formation between the two zones 20 and 22 of stratification of the interlaying zone, and the change in the structure of the sediment, the formation of channels 17 using a press stamp for diverting surface water, using mechanical drive parts and I or I.
    Through the channels present in the Begx part of the sediment, the liquid, the path of which to the belt sieve is closed by a packed bottom layer, can flow to the side and along the edge bands of the belt sieve not covered with slurry. Upon subsequent discharge through the Z-shaped steps, this withdrawn liquid can no longer be mixed with the lower layer already previously dewatered further, which increases the efficiency.
    权利要求:
    Claims (5)
    [1]
    1. TAPE FILTERING MACHINE FOR CONTINUOUS DEHYDRATION OF SUSPENSIONS, in particular sewage sludge, containing endless belt sieves stretched on the guide rollers, a filtering zone on the upper · branch of the upper belt ”, a sieve, a compressing organ for sludge located above the upper , a sediment pressing zone located between parallel branches of the belt sieves, and filtrate collection chambers connected to the filtering and pressing zones of the precipitate, characterized in that, in order to increase the efficiency of the filter anija by maximizing the coagulant guide roller disposed below the preceding guide roller is displaced in the direction opposite to the direction transportirov- § precipitate ki, wherein the upper belt of the sieve is formed by at least one Z-shaped stage.
    g ns co
    Q0 bf
    [2]
    2. Machine by π. 1, characterized in that the filtrate collection chambers are equipped with output nozzles located above each branch of the Z-shaped step and having a width equal to the width of the belt sieve, while the nozzle of the last filtrate collection chamber is installed above the sediment pressing zone.
    [3]
    3. Machine pop. 1, characterized in that the compressing organ for sludge is a press die made in the form of a two-jaw cage placed between two disks, expanding from the middle of the sieve to its outer sides, mounted above the upper sieve lane 1 vym guide roller, wherein the press stamp is mounted for clamping to the discrete dsadku.
    [4]
    4. Machine pop. 1, characterized in that the disks of the press ’die are provided with a rotation drive.
    [5]
    5. The machine according to p. 1 / about t whether - ; part with the fact that the press stamp is equipped with a hydraulic cylinder with a piston;
    1 ·
    类似技术:
    公开号 | 公开日 | 专利标题
    US3896030A|1975-07-22|Filter press, particularly for dewatering sludge in sewage treatment plants
    SU1037828A3|1983-08-23|Belt filtering machine for continuous dehydration of slurries
    CA1063740A|1979-10-02|Process for dewatering sludge-type material and an installation for carrying out the process
    US4181616A|1980-01-01|Device for dewatering sludge or the like
    US3800952A|1974-04-02|Filter
    CA1054531A|1979-05-15|Endless belt filter with filter medium enveloping the feed before pressing
    US3613563A|1971-10-19|Filter press
    CN100355481C|2007-12-19|Belt type filter press
    US5022989A|1991-06-11|Belt filter press and belt for same
    US3979296A|1976-09-07|Filter
    US4186089A|1980-01-29|Method and apparatus for dewatering of sludgy substance
    US3821928A|1974-07-02|Apparatus for continuous expression
    US3696930A|1972-10-10|Horizontal compression type automatic filter press
    US4276822A|1981-07-07|Apparatus for the batch filtering of suspensions
    US4168236A|1979-09-18|Consecutive, independent dewatering apparatus for improved sludge treatment
    US3703963A|1972-11-28|Sludge hydroextractor
    CA1069378A|1980-01-08|Consecutive, independent dewatering apparatus and method for improved sludge treatment
    US3063362A|1962-11-13|Two-apron press
    US3501345A|1970-03-17|Apparatus and method for the continuous extraction of sugar from bagasse
    US3273494A|1966-09-20|Sewage filter and press
    JP2001058107A|2001-03-06|Filter press
    US1991760A|1935-02-19|Press
    US4059527A|1977-11-22|Pretreatment filter press dewatering system
    CA2004782C|2001-04-10|Device for separating solids from suspension
    EP0201443A1|1986-12-17|Filter belts press
    同族专利:
    公开号 | 公开日
    PL220422A1|1980-09-08|
    ATA780279A|1988-01-15|
    JPS55116412A|1980-09-08|
    HU178260B|1982-04-28|
    DE2854168B2|1981-01-29|
    DE2854168C3|1983-11-24|
    GB2043479A|1980-10-08|
    CA1124573A|1982-06-01|
    FR2443869B1|1982-12-03|
    FR2443869A1|1980-07-11|
    CS235505B2|1985-05-15|
    DE2854168A1|1980-06-19|
    GB2043479B|1982-11-17|
    AT386404B|1988-08-25|
    US4276168A|1981-06-30|
    PL124901B1|1983-03-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2018136908A1|2017-01-23|2018-07-26|M-I L.L.C.|Fluid and solid material separator|US1538742A|1924-05-26|1925-05-19|American Sulphur & Fertilizer|Self-cleaning filter|
    DE756762C|1941-08-24|1954-02-01|Zellwolle Und Kunstseide Ring|Device for cleaning, sifting and opening up vegetable fibers|
    NL239641A|1958-06-02|
    NL250025A|1959-03-31|
    US3084987A|1960-03-29|1963-04-09|Deka S A|Method and apparatus for the pressure filtration of suspensions of solids in liquids|
    GB920447A|1961-05-18|1963-03-06|Davidson Maxwell Wingate|Improved inflatable bag for liquid extraction apparatus|
    FR1515344A|1966-03-05|1968-03-01|Device for the separation, by filtration under pressure, of liquids and solid constituents|
    ZA723154B|1971-06-05|1973-09-26|Klein Kg A|A belt filter for removal of liquid from suspensions sludges and the like|
    SE365122B|1972-04-13|1974-03-18|Nordstjernan Rederi Ab|
    AT323199B|1973-06-12|1975-06-25|Klein Alb Kg|BAND FILTER OD. DGL. DEVICE FOR DRAINING SLUDGE-LIKE SUBJECT MATERIAL AND PROCEDURE FOR IT|
    US4181616A|1975-11-17|1980-01-01|Albert Bahr|Device for dewatering sludge or the like|
    DE7621428U1|1976-07-07|1978-04-06|Altmeyer, Hans J.|DEVICE FOR DEWATERING OF THE INPUT MATERIAL IN SLUDGE PRESSES|
    US4115275A|1977-04-14|1978-09-19|Morris William E|Sludge dewatering apparatus|FI59029C|1979-11-13|1981-06-10|Enso Gutzeit Oy|MESAPRESSENHET|
    AT387379B|1982-03-01|1989-01-10|Andritz Ag Maschf|DEVICE FOR HUMIDIFYING THE FILTER CAKE ON DRAINAGE MACHINES|
    AT381647B|1984-10-25|1986-11-10|Andritz Ag Maschf|BELT FILTER PRESS|
    US4729836A|1986-12-01|1988-03-08|Arus Andritz-Ruthner, Inc.|Flexible chicane system for liquid-solid separation equipment|
    US4857193A|1987-06-01|1989-08-15|Arus-Andritz Ruthner, Inc.|Floating chicane system for liquid-solid separation equipment|
    DE3725651C1|1987-08-03|1988-12-08|Fab Filtertechnik Anlagenbau Fischer, Van Betuw & Co Gmbh, 7302 Ostfildern, De|Band filter for cleansing liq. - includes upper chamber to hold dirty liq. filter band drive unit and cleansing chamber|
    DE3822010C1|1988-06-30|1990-02-01|Saarbergwerke Ag, 6600 Saarbruecken, De|
    DE4335976A1|1993-10-21|1995-04-27|Petkus Wutha Getreide Und Saat|Vortex body for devices for separating off water from suspensions, in particular from sludges|
    DE102014105835B4|2014-04-25|2019-04-25|digitanalog Hard- und Software GmbH|Method and arrangement for dewatering a solid-liquid mixture|
    BR102019026860A2|2019-12-16|2021-06-22|José Oswaldo Da Silva|EQUIPMENT AND METHOD FOR DEWATERING AND COMPACTING SLUDGE, TAILINGS, PASTURE MATERIALS AND SUSPENSIONS|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2854168A|DE2854168C3|1978-12-15|1978-12-15|Belt filter press for the continuous dewatering of a suspension, in particular a waste water sludge|
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