CN1064665A - 通过排水和挤压处理泥浆的小型化设备 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
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- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6484—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a translatory movement with respect to the filtering element
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/78—Handling the filter cake in the filter for purposes other than for regenerating for washing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
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Abstract
一种给泥浆,特别是水净化厂的泥浆脱水的设
备,包括一位于挤压带过滤器部件上方的排水格栅部
件,而冲洗格栅的装置设在格栅上方,以便限制格栅
和带子之间絮凝的泥浆的下落高度,因而,避免稠化
阶段和脱水阶段之间絮凝的泥浆被破坏,格栅的冲洗
方向与格栅上泥浆的运动方向一致。
Description
本发明涉及处理泥浆的设备,特别是进行固-液分离并有可能使水净化厂的泥浆变稠和脱水的设备。
众所周知,水净化厂的泥浆处理通常是通过在一带子过滤器上脱水来完成的。在脱水之前,泥浆在一储藏容器中经过静置或缓慢搅动这样的稠化操作。
近年,本申请的申请人开发了一种以固定时间间隔逆流冲洗的排水格栅,这种排水格栅构成了1985年5月9日申请的,公开号为2564637的法国专利85/07026的主题。这种代替稠化器的排水格栅使得有可能生产出更轻便的脱水装置,该装置更易于除臭,因而价格低廉。
为限制脱水装置的体积,排水格栅和带子过滤器必须靠紧放置,以形成单一的机器。稀的泥浆从格栅一侧进入,在过滤器的带子之间受到挤压后,成为脱去水的“饼”。然而,如果排水格栅需要通过逆流(向下)喷水冲洗的话,则该装置就会受到体积紧凑的限制。因此,在上述已知装置中,不可能将格栅部分设置在过滤器的挤压带部分之上,因为在格栅下面需要放置逆流冲洗系统的高度要求在格栅和挤压带之间有一非常的高度,这就会破坏从格栅落到带子上与聚合物结成絮凝物的泥浆。
因此,本发明的目的在于避免上述现有技术解决方案的缺陷,使得能叠置排水格栅和过滤器的挤压带。
上述目的是通过构成如下冲洗系统来实现的,它在为上述目的而限定的区域不再逆流而是顺流冲洗。这样,有可能在格栅部分和带子部分之间构成一种水路,它适于泥浆,甚至最易碎的泥浆进行絮凝。
根据本发明的最佳实施例,冲洗排水格栅是借助于放在上述格栅上的可动滑架进行的。在滑架向前运动时,冲洗水喷到格栅上,当可动滑架反向运动时,停止喷水。
根据本发明,上述可动滑架位于相互靠近的两刮削器之间,并借助于与刮削器整体连接且靠驱动排水格栅的刮削器的无端链条机构运动的弹簧片,在两端部止动件之间运动。
本发明的其他特征和优越性将参照附图所示实施例详细描述如下。
图1是本发明的泥浆处理设备的总体侧视图;
图2是本发明冲洗排水格栅的装置细节的部分侧视图;
图3是图2的平面图;
图4是冲洗排水格栅的滑架的前视图。
由图1可见,本发明的设备包括总体上由参考号10表示的排水格栅部件和总体上由参考号12表示的挤压部件。该挤压部件具有传统的双层布形式并大致包括过滤布14、14′,它们绕过如16表示的挤压辊并由可变速电机(图中未示出)驱动。由于该机器的上述部分是众所周知的,所以此处不再描述。
待处理泥浆和聚合电解质通过给布料槽20供料的管子18引入。然后,泥浆溢流到排水格栅22上,泥浆在一系列刮削器24的推动下通过格栅,而刮削器24是由与其相连的双层链26驱动的(见图1和图2)。隙间的水通过格栅22流走,并且当刮削器24运动时,泥浆和水的分离受到在格栅上面绕自身转动的泥浆辊结构的帮助。
在格栅的端部,泥浆溢出并借助于导流板28传送到过滤布14上,进而送至挤压区,然后,格栅22的平面和挤压部件的上过滤布平面尽可能相互靠紧。假定冲洗系统位于格栅上方,则格栅和挤压部分不会再被冲洗系统隔开。在从压实辊30下面通过后,泥浆被带到挤压带过滤器12的两层布14和14′之间。这一部分构成了现有技术的一部分,因此不再描述。
格栅22借助带有喷嘴的可动滑架,在不停止泥浆供给的情况下,以一定时间间隔被冲洗。本发明的格栅冲洗系统在图2至图4中有详细描述。
冲洗滑架32设有多个向下的喷嘴34。该滑架可进行水平平移运动,即通过沿两端装有止动件40、40′的两导管36、36′滑动的导块38、38′而滑动。而且,带有刮削器24的链条26包括相互靠近的两刮削器42、44,可动滑架32就装在该两刮削器之间。刮削器42、44装有弹簧片46,其一端作用到滑架32上。设置上述弹簧片使得有可能使可动冲洗滑架32按上述运动方式运动。
加压的水通过从设备一侧壁的天窗35伸进的柔性管33供至可动滑架。
当刮削器42、44经过时,弹簧片46推动滑架32从由止动件40限定的位置运动到由止动件40′限定的位置。当滑架32在止动件40′处停止时,弹簧片46就会从滑架32下脱开,而当上方链条26运动时,弹簧片46则在滑架32上方再次推动滑架沿反向从止动件40′至40。当滑架32到达止动件40时,弹簧片46再次脱开,直到重新返回初始的推动位置(见图2)。
根据本发明,在端部止动件40、40′的位置设有两电动或气动接点,以便当滑架从止动件40向止动件40′运动时做出响应,以启动自动阀门向滑架供给加压的水,而当滑架到达止动件40′时,停止供水。因此,格栅22的冲洗按上述方式在刮削器42、44之间进行,只带走很少量的已滞留在这两刮削器之间的泥浆。
上述两刮削器42、44相互靠近设置具有以下两条优越性:
一方面,通过将冲洗的水能聚集到一限定的区域而提高冲洗效率;
另一方面,由于冲洗水的稀释只影响处于上述两刮削器之间的少量泥浆。
应该看到(特别是从图4中),格栅22下面的高度H可以很低,因为该高度只需保证排水的水流动即可。正是这较低的高度使泥浆能从排水区传送到挤压区,而不破坏与聚合物形成絮凝的泥浆结构。
而且,根据本发明的最佳实施例,格栅部10和双层布过滤器12为首尾相接式叠加(见图1)。这使得在格栅上稠化的泥浆出口和脱水的泥浆出口可以一个位于另一个之上。这样,就可以简单地通过开关导流板28,来根据最终的产品,采用相同的装置(泵、螺杆装置或类似装置)收集稠化或脱水的泥浆。
显然本发明不限于上述实施例,它可包括各种改型。
Claims (7)
1、一种给泥浆,特别是水净化厂的泥浆脱水的设备,包括一位于挤压带过滤器部件上方的排水格栅部件,特征在于冲洗格栅(22)的装置(32)设在格栅(22)上方,以便限制格栅和带子(14、14′)之间絮凝的泥浆的下落高度,因而,避免稠化阶段和脱水阶段之间絮凝的泥浆被破坏,格栅的冲洗方向与格栅上泥浆的运动方向一致。
2、按照权利要求1的设备,特征在于冲洗排水格栅的装置由位于格栅(22)上方的可动滑架(32)构成,冲洗水通过设在滑架上的多个喷嘴(34)喷到格栅上。
3、按照权利要求1或2的设备,特征在于上述可动滑架(32)位于相互靠近的两刮削器(42、44)之间并借助于与刮削器整体连接的弹簧片(46)运动于两端部止动件(40、40′)之间,滑架的运动是通过驱动排水格栅的刮削器的无端链条机构(26)而进行的。
4、按照上述权利要求之一的设备,特征在于滑架在向前运动时供给加压的水,而滑架反向运动时停止供水。
5、按照上述权利要求之一的设备,其特征在于当冲洗滑架(32)由装置(38、38′)在两端具有止动件(40、40′)的导管(36、36′)上滑动而运动时,受到导引。
6、按照权利要求之一的设备,特征在于在止动件(40、40′)的位置处设有电动或气动接点,以便当滑架离开止动件(40)时,启动自动阀门向滑架供给加压的水,而当滑架到达另一止动件(40′)时,停止供水。
7、按照上述权利要求之一的设备,特征在于排水格栅部件(10)和挤压带过滤器部件(12)安装成首尾相接,以便仅通过开关一导流板,就能在同一位置获得稠化的泥浆或脱水的泥浆。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9103037 | 1991-03-13 | ||
FR919103037A FR2673933B1 (fr) | 1991-03-13 | 1991-03-13 | Appareil compact de traitement des boues par egouttage et pressage. |
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CN1064665A true CN1064665A (zh) | 1992-09-23 |
CN1029835C CN1029835C (zh) | 1995-09-27 |
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CN92101243A Expired - Fee Related CN1029835C (zh) | 1991-03-13 | 1992-02-28 | 通过排水和挤压处理泥浆的小型化设备 |
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US (1) | US5207907A (zh) |
EP (1) | EP0503994B1 (zh) |
CN (1) | CN1029835C (zh) |
AR (1) | AR243855A1 (zh) |
DE (2) | DE503994T1 (zh) |
ES (1) | ES2033660T3 (zh) |
FR (1) | FR2673933B1 (zh) |
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US4019431A (en) * | 1973-03-17 | 1977-04-26 | Alb. Klein Kg | Method of dewatering sludge |
US3951805A (en) * | 1974-10-24 | 1976-04-20 | Dodd Joseph C | Algae harvester |
JPS5328298Y2 (zh) * | 1975-10-02 | 1978-07-17 | ||
US4181616A (en) * | 1975-11-17 | 1980-01-01 | Albert Bahr | Device for dewatering sludge or the like |
AT363872B (de) * | 1979-01-08 | 1981-09-10 | Voest Alpine Ag | Entwaesserungstrommel fuer stoffentwaesserungsvorrichtungen |
DK152015B (da) * | 1979-08-02 | 1988-01-25 | Voest Alpine Ag | Apparat til afvanding af vandige suspensioner og slam med en sibaandpresse og en spaltesi |
JPS5720244Y2 (zh) * | 1979-12-28 | 1982-04-30 | ||
AT386819B (de) * | 1983-04-22 | 1988-10-25 | Voest Alpine Ag | Vorentwaesserungseinrichtung fuer schlaemme |
US4761895A (en) * | 1983-12-01 | 1988-08-09 | Nippon Kokan Kabushiki Kaisha | Method and apparatus for dehydrating sludge |
US4599533A (en) * | 1984-05-15 | 1986-07-08 | Rca Corporation | Color picture tube having shadow mask frame with truncated corners |
US4836100A (en) * | 1987-11-17 | 1989-06-06 | Ashbrook-Simon-Hartley Corporation | Apparatus for regulating feed thickness in a belt press |
US4921608A (en) * | 1989-02-02 | 1990-05-01 | Chung Yup Lee | Filtration apparatus having belts for treating waste product |
GB2235393A (en) * | 1989-08-25 | 1991-03-06 | Wu Kie Pyng | Waste separator |
-
1991
- 1991-03-13 FR FR919103037A patent/FR2673933B1/fr not_active Expired - Fee Related
-
1992
- 1992-02-27 ES ES92400512T patent/ES2033660T3/es not_active Expired - Lifetime
- 1992-02-27 DE DE199292400512T patent/DE503994T1/de active Pending
- 1992-02-27 DE DE69202597T patent/DE69202597T2/de not_active Expired - Fee Related
- 1992-02-27 EP EP92400512A patent/EP0503994B1/fr not_active Expired - Lifetime
- 1992-02-28 CN CN92101243A patent/CN1029835C/zh not_active Expired - Fee Related
- 1992-03-10 US US07/848,185 patent/US5207907A/en not_active Expired - Lifetime
- 1992-03-12 AR AR92321918A patent/AR243855A1/es active
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103288150A (zh) * | 2013-06-17 | 2013-09-11 | 国家城市给水排水工程技术研究中心 | 平板式回流污泥拦污格栅及压榨脱水一体化装置 |
CN103964517A (zh) * | 2014-05-14 | 2014-08-06 | 中国市政工程华北设计研究总院 | 平板式立体组合拦污格栅及压榨脱水一体化装置 |
CN103964517B (zh) * | 2014-05-14 | 2015-09-09 | 中国市政工程华北设计研究总院 | 平板式立体组合拦污格栅及压榨脱水一体化装置 |
CN104548743A (zh) * | 2015-01-07 | 2015-04-29 | 尚宝泰机械科技(昆山)有限公司 | 一种油渣连续过滤机 |
CN107670386A (zh) * | 2016-12-12 | 2018-02-09 | 青岛大学 | 一种多传感器的化工浆料分离系统 |
CN107670386B (zh) * | 2016-12-12 | 2019-11-15 | 连江县维佳工业设计有限公司 | 一种多传感器的化工浆料分离系统 |
CN108607270A (zh) * | 2018-04-28 | 2018-10-02 | 温州大学激光与光电智能制造研究院 | 去渣沉砂降泥机构 |
CN108607270B (zh) * | 2018-04-28 | 2020-06-09 | 温州大学激光与光电智能制造研究院 | 去渣沉砂降泥机构 |
CN112777788A (zh) * | 2020-12-22 | 2021-05-11 | 成都华阳建筑股份有限公司 | 建筑施工用循环水系统 |
Also Published As
Publication number | Publication date |
---|---|
CN1029835C (zh) | 1995-09-27 |
FR2673933B1 (fr) | 1994-03-04 |
FR2673933A1 (fr) | 1992-09-18 |
US5207907A (en) | 1993-05-04 |
ES2033660T1 (es) | 1993-04-01 |
DE69202597T2 (de) | 1995-11-30 |
EP0503994B1 (fr) | 1995-05-24 |
DE69202597D1 (de) | 1995-06-29 |
ES2033660T3 (es) | 1995-07-16 |
AR243855A1 (es) | 1993-09-30 |
EP0503994A1 (fr) | 1992-09-16 |
DE503994T1 (de) | 1993-02-25 |
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