CN102814316B - Method for pipe network sludge reduction treatment - Google Patents
Method for pipe network sludge reduction treatment Download PDFInfo
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- CN102814316B CN102814316B CN201210310768.XA CN201210310768A CN102814316B CN 102814316 B CN102814316 B CN 102814316B CN 201210310768 A CN201210310768 A CN 201210310768A CN 102814316 B CN102814316 B CN 102814316B
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Abstract
The invention discloses a method for pipe network sludge reduction treatment. The method includes the steps: (1) using a vibrating screen classifier and a belt conveyor for prescreening sludge; (2) filtering by a drum grille and pressing to remove water by a screw press; (3) delivering the filtered sludge via a sand pump to a grit-water separator for grit-water separation; (4) performing fine filtering via a membrane grille with the aperture of 1mm and pressing sediment by the screw press; and (5) delivering sewage in the steps (1), (2), (3) and (4) by closed pipeline delivery, performing closed treatment for all used equipment, adopting an automatic embedded PLC (programmable logic controller) program control system and controlling by a visual touch panel. The method is applicable to reduction harmless treatment for urban pipe network sludge, capable of effectively reducing environment and soil pollution and decreasing the size of a landfill, more reasonable and effective in treatment, low in cost and free of secondary pollution.
Description
Technical field
The invention belongs to a kind of urban environmental hygiene technical field, the method and apparatus of the specifically ditch mud process of urban pipe network.
Background technology
Along with the quickening of urbanization process, pipeline network construction constantly expands, and municipal sewage, rainwater-collecting scale are increasing, can deposit and produce a large amount of sewage sludge and mineralized waste in pipe network.Its complicated component, comprise branch, polybag, pieces of cloth, stone, fiber, spoil, sand, beverage bottle, packing box etc. and heavy metal as lead, copper, cadmium and zinc etc., mostly become atherosclerotic, water body is black, and moisture content and content of organics are all higher.
Traditional method for sludge treatment, as vacuum filtering and dewatering, filter-press dehydration, centrifugal dehydration, heat oven dry, natural mummification, or relatively more serious to equipment damage, or cannot dewater, or economy is bad, all can not well process pipe network mud. at all
In order to the material these being formed most probably to secondary pollution carries out minimizing, innoxious, recycling treatment, need to propose one more perfect, more effectively, more rational treatment system, comprising processing method and equipment, protects urban environment better.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, a kind of method of pipe network sludge reduction process is proposed, the method can carry out minimizing, innoxious, recycling treatment to urban pipe network mud effectively, reduce environment and soil pollution, minimizing landfill yard volume, more effective, more reasonable, and cost is low, non-secondary pollution.
The object of the invention is to be achieved through the following technical solutions:
The method of pipe network sludge reduction process of the present invention, its feature comprises the following steps:
(4) vibrating screen classifier and belt conveyor is used to carry out sub-sieve to mud:
The mud washed in a pan out clear from pipe network is transported Treatment of Sludge station by mud car, be transported in vibrating screen classifier through charging slag bucket, vibrating screen classifier utilizes dither effect to be greater than the material screening of 40mm particle diameter out, and by flushing water, isolated large solid particulate matter is rinsed, reduce its content of organics, described large solid particulate matter mainly comprises stone, long fibre, polybag, tree branches and leaves slag charge; Then the large solid particulate matter sieved out is transported to the slag car by belt conveyor, delivers to refuse landfill, then classify, recoverable material reclaims, not recoverable material landfill; The mud being less than 40mm particle diameter is sent into rotary drum grid by conveying worm and carries out next step PROCESS FOR TREATMENT; The screen cloth of vibrating screen classifier adopts polyurethane material, long service life, and comparatively metal silk weaving screen cloth height 3-10 doubly, can effectively absorb impact, reduce noise, lightweight, be convenient to installing/dismounting, above screen cloth, wash tub pipe being installed, for rinsing screen cloth, ensureing that mud does not block screen cloth;
(5) rotary drum grid filtration and pressafiner is used to anhydrate:
Use the rotary drum grid be made up of 6mm orifice plate and helical blade, back enters the mud being less than 40mm particle diameter of rotary drum grid, through rotary drum grid sub-sieve, the grid slag being greater than 6mm particle diameter is rotated by rotary drum grid, and takes to outside grid through helical blade, enters pressafiner, anhydrated by the squeezing of squeezer, grid slag squeezes moisture content less than 60%, is transported to the slag car, delivers to refuse landfill landfill; And the mud being less than 6mm particle diameter enters down one treatment process by orifice plate; Being provided with wash tub pipe above rotary drum grid, for rinsing rotary drum grid, ensureing that rotary drum grid does not get clogged;
(6) be sent to grit water separator through sand pump and carry out the separation of sand water:
The mud being less than 6mm particle diameter after being filtered by rotary drum grid first enters collection sand drain, takes out to rise to be transported to grit water separator by sand pump; The mud entering grit water separator forms high-speed rotational in grit water separator, under the influence of centrifugal force, the solid formation that density is high can be close to the barrel of separator, the relatively low liquid of density is then in the centre of separator cartridge, so thicker particle is separated from mud, the silt particle separated sends into the slag car, delivers to refuse landfill landfill; Isolate the sewage after silt particle and enter next step technique;
(4) anhydrate through 1mm film grid filtration and pressafiner:
The film grid filtration of isolated sewage via hole diameter 1mm again, under the filtration of 1mm film grid, the grid slag being greater than 1mm is separated, and sends into pressafiner squeezing and anhydrates, make its moisture content be less than 60%, be then transported to the slag car, deliver to refuse landfill landfill; Sewage after the fine filtering of 1mm film grid, enters recycle-water water tank, and film grid is provided with jet water spout, rinses film grid, with anti-clogging; Reuse not water tank water be used for charging slag bucket, vibrating screen classifier, rotary drum grid, film grid wash water, the water after filtration is utilized effectively;
(5) transmission of dirt described in aforementioned (1), (2), (3), (4) step is pipeline closed transmission, device therefor all carries out closed processes, and adopting Embedded PLC program automatic control system, visual touch panel manipulates.
The beneficial effect of the method for pipe network sludge reduction process of the present invention: this method is in the operation of reality, in main process system, material is mainly based on Cemented filling, airtight mechanical device process and automatic operating operating mode, cause leakage, affect surrounding air, cause the source point of stench few.The slag input be mainly derived from outside core treatment area is slagged tap place, by general industry Architectural Design of Powerhouse, ensures ventilation standard.System adopts Embedded PLC program automatic control system, and visual touch panel manipulates.Automatic control one key operation, Non-follow control each point is controlled.Method of the present invention can carry out minimizing, innoxious, recycling treatment to urban pipe network mud effectively, and reduce environment and soil pollution, minimizing landfill yard volume, more effectively, more rationally, and cost is low, non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is the operating process schematic diagram of the inventive method.
Detailed description of the invention
Below the present invention is specifically described again.Embodiment: the capital equipment that the method for pipe network sludge reduction process uses is as follows:
(1) vibrating screen classifier and conveying worm is used to carry out sub-sieve to mud:
Vibrating screen classifier specifications parameter:
The mud washed in a pan out clear from pipe network is transported Treatment of Sludge station by mud car, be transported in vibrating screen classifier through charging slag bucket, vibrating screen classifier utilizes dither effect to be greater than the material screening of 40mm particle diameter out, and by flushing water, isolated large solid particulate matter is rinsed, reduce its content of organics, described large solid particulate matter mainly comprises stone, long fibre, polybag, tree branches and leaves slag charge; Then the large solid particulate matter sieved out is transported to the slag car by conveying worm, delivers to refuse landfill, then classify, recoverable material reclaims, not recoverable material landfill; The mud being less than 40mm particle diameter is sent into rotary drum grid by conveying worm and carries out next step PROCESS FOR TREATMENT; The screen cloth of vibrating screen classifier adopts polyurethane material, long service life, and comparatively metal silk weaving screen cloth height 3-10 doubly, can effectively absorb impact, reduce noise, lightweight, be convenient to installing/dismounting, above screen cloth, wash tub pipe being installed, for rinsing screen cloth, ensureing that mud does not block screen cloth;
(2) rotary drum grid filtration and pressafiner is used to anhydrate:
6mm rotary drum grid characteristics
Use the rotary drum grid be made up of 6mm orifice plate and helical blade, back enters the mud being less than 40mm particle diameter of rotary drum grid, through rotary drum grid sub-sieve, the grid slag being greater than 6mm particle diameter is rotated by rotary drum grid, and takes to outside grid through helical blade, enters pressafiner, anhydrated by the squeezing of squeezer, grid slag squeezes moisture content less than 60%, is transported to the slag car, delivers to refuse landfill landfill; And the mud being less than 6mm particle diameter enters down one treatment process by orifice plate; Being provided with wash tub pipe above rotary drum grid, for rinsing rotary drum grid, ensureing that rotary drum grid does not get clogged;
(3) be sent to grit water separator through sand pump and carry out the separation of sand water:
The mud being less than 6mm particle diameter after being filtered by rotary drum grid first enters collection sand drain, takes out to rise to be transported to grit water separator by sand pump; The mud entering grit water separator forms high-speed rotational in grit water separator, under the influence of centrifugal force, the solid formation that density is high can be close to the barrel of separator, the relatively low liquid of density is then in the centre of separator cartridge, so thicker particle is separated from mud, the silt particle separated sends into the slag car, delivers to refuse landfill landfill; Isolate the sewage after silt particle and enter next step technique;
(4) anhydrate through 1mm film grid filtration and pressafiner:
The film grid filtration of isolated sewage via hole diameter 1mm again, under the filtration of 1mm film grid, the grid slag being greater than 1mm is separated, and sends into pressafiner squeezing and anhydrates, make its moisture content be less than 60%, be then transported to the slag car, deliver to refuse landfill landfill; Sewage after the fine filtering of 1mm film grid, enters recycle-water water tank, and film grid is provided with jet water spout, rinses film grid, with anti-clogging; Reuse not water tank water be used for charging slag bucket, vibrating screen classifier, rotary drum grid, film grid wash water, the water after filtration is utilized effectively;
(5) transmission of dirt described in aforementioned (1), (2), (3), (4) step is pipeline closed transmission, device therefor all carries out closed processes, and adopting Embedded PLC program automatic control system, visual touch panel manipulates.
The present embodiment has carried out the trial run of month in certain city district, and pipe network Sludge landfill volume decreases 60%, has reclaimed 200 tons, available sand.Decrease cost of transportation 200,000.
Claims (1)
1. a method for pipe network sludge reduction process, its feature comprises the following steps:
(1) vibrating screen classifier and conveying worm is used to carry out sub-sieve to mud:
The mud washed in a pan out clear from pipe network is transported Treatment of Sludge station by mud car, be transported in vibrating screen classifier through charging slag bucket, vibrating screen classifier utilizes dither effect to be greater than the material screening of 40mm particle diameter out, and by flushing water, isolated large solid particulate matter is rinsed, reduce its content of organics, described large solid particulate matter mainly comprises stone, long fibre, polybag, tree branches and leaves slag charge; Then the large solid particulate matter sieved out is transported to the slag car by belt conveyor, delivers to refuse landfill, then classify, recoverable material reclaims, not recoverable material landfill; The mud being less than 40mm particle diameter is sent into rotary drum grid by conveying worm and carries out next step PROCESS FOR TREATMENT; The screen cloth of vibrating screen classifier adopts polyurethane material, long service life, and comparatively metal silk weaving screen cloth height 3-10 doubly, can effectively absorb impact, reduce noise, lightweight, be convenient to installing/dismounting, above screen cloth, wash tub pipe being installed, for rinsing screen cloth, ensureing that mud does not block screen cloth;
(2) rotary drum grid filtration and pressafiner squeezing is used to anhydrate:
Use the rotary drum grid be made up of 6mm orifice plate and helical blade, back enters the mud being less than 40mm particle diameter of rotary drum grid, through rotary drum grid sub-sieve, the grid slag being greater than 6mm particle diameter is rotated by rotary drum grid, and takes to outside grid through helical blade, enters pressafiner, anhydrated by the squeezing of squeezer, grid slag squeezes moisture content less than 60%, is transported to the slag car, delivers to refuse landfill landfill; And the mud being less than 6mm particle diameter enters down one treatment process by orifice plate; Being provided with wash tub pipe above rotary drum grid, for rinsing rotary drum grid, ensureing that rotary drum grid does not get clogged;
(3) be sent to grit water separator through sand pump and carry out the separation of sand water:
The mud being less than 6mm particle diameter after being filtered by rotary drum grid first enters collection sand drain, takes out to rise to be transported to grit water separator by sand pump; The mud entering grit water separator forms high-speed rotational in grit water separator, under the influence of centrifugal force, the solid formation that density is high can be close to the barrel of separator, the relatively low liquid of density is then in the centre of separator cartridge, so thicker particle is separated from mud, the silt particle separated sends into the slag car, delivers to refuse landfill landfill; Isolate the sewage after silt particle and enter next step technique;
(4) anhydrate through 1mm film grid filtration and pressafiner:
The film grid filtration of isolated sewage via hole diameter 1mm again, under the filtration of 1mm film grid, the grid slag being greater than 1mm is separated, and sends into pressafiner squeezing and anhydrates, make its moisture content be less than 60%, be then transported to the slag car, deliver to refuse landfill landfill; Sewage after the fine filtering of 1mm film grid, enters recycle-water water tank, and film grid is provided with jet water spout, rinses film grid, with anti-clogging; Reuse not water tank water be used for charging slag bucket, vibrating screen classifier, rotary drum grid, film grid wash water, the water after filtration is utilized effectively;
(5) transmission of dirt described in aforementioned (1), (2), (3), (4) step is pipeline closed transmission, device therefor all carries out closed processes, and adopting Embedded PLC program automatic control system, visual touch panel manipulates.
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| CN201210310768.XA CN102814316B (en) | 2012-08-29 | 2012-08-29 | Method for pipe network sludge reduction treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103172205A (en) * | 2013-04-16 | 2013-06-26 | 上海市城市建设设计研究总院 | Underground type integrated sewage pretreatment reaction tank |
| CN108409073A (en) * | 2017-02-10 | 2018-08-17 | 上海逸清环保工程设备有限公司 | Ditch mud processing method |
| CN106830594B (en) * | 2017-03-29 | 2023-10-20 | 宜兴华都琥珀环保机械制造有限公司 | Sludge treatment system |
| CN107721107A (en) * | 2017-12-04 | 2018-02-23 | 祥达建设有限公司 | One kind is used for municipal sludge treatment equipment and method |
| CN109078963B (en) * | 2018-09-05 | 2024-09-06 | 浙江大学苏州工业技术研究院 | Urban machine sweeping garbage separation and reduction treatment method and device |
| CN109304257A (en) * | 2018-12-10 | 2019-02-05 | 北京北排装备产业有限公司 | A kind of city planting ductwork recycling sludge disposition integrated apparatus and its application method |
| CN110523533A (en) * | 2019-09-19 | 2019-12-03 | 兴霖环境(武汉)有限公司 | A kind of Garbage separation equipment and its implementation for river bottom mud disposition |
| CN113683274A (en) * | 2021-08-03 | 2021-11-23 | 山东省环境保护科学研究设计院有限公司 | System and method for ex-situ treatment of sludge in urban pipe gallery |
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| US5215670A (en) * | 1990-02-26 | 1993-06-01 | Bio Gro Systems, Inc. | Process of drying and pelletizing sludge in indirect dryer having recycled sweep air |
| CN100450947C (en) * | 2004-10-20 | 2009-01-14 | 吴为中 | Sludge drying and resource disposal process |
| ITMC20080135A1 (en) * | 2008-07-22 | 2010-01-23 | Nuova Maip Macchine Agric | SYSTEM OF TREATMENT OF SLUDGE COMING FROM WASTEWATER AND ITS ENERGY EXPLOITATION FOR COGENERATION. |
| CN201433115Y (en) * | 2009-07-09 | 2010-03-31 | 北京碧水源膜科技有限公司 | Barrate grille for waste-water pretreatment |
| CN101696077B (en) * | 2009-10-21 | 2011-06-08 | 黑旋风工程机械开发有限公司 | Method for screening and dewatering urban sludge efficiently |
| CN202011161U (en) * | 2011-01-11 | 2011-10-19 | 上海申嘉三和环保科技开发有限公司 | Spiral squeezing machine |
| CN102225834B (en) * | 2011-05-22 | 2013-06-05 | 黑旋风工程机械开发有限公司 | Sludge treatment method and device for urban drainage pipe network |
| CN102644302B (en) * | 2012-04-06 | 2014-04-09 | 杭州银江环保科技有限公司 | Sludge processing system for watercourses and lakes and processing method thereof |
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Owner name: BEIJING DRAINAGE EQUIPMENT CO., LTD. Free format text: FORMER NAME: BEIJING BAISHIYUAN ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. |
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Address after: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 313 Patentee after: Beijing North row equipment industry company limited Address before: 100016 Beijing City, Chaoyang District, WA No. 52 Jiuxianqiao sewage treatment plant office building 313 Patentee before: Beijing Baishiyuan Environmental Protection Technology Co., Ltd. |