CN103288313A - Device and method for elutriation and separation of sludge and treatment and reuse of sewage in through channel - Google Patents

Device and method for elutriation and separation of sludge and treatment and reuse of sewage in through channel Download PDF

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Publication number
CN103288313A
CN103288313A CN2012100529675A CN201210052967A CN103288313A CN 103288313 A CN103288313 A CN 103288313A CN 2012100529675 A CN2012100529675 A CN 2012100529675A CN 201210052967 A CN201210052967 A CN 201210052967A CN 103288313 A CN103288313 A CN 103288313A
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China
Prior art keywords
elutriation
mud
chamber
sewage
pipe
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CN2012100529675A
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Chinese (zh)
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CN103288313B (en
Inventor
邹锦林
杨姝君
陈思
谢奎
李小林
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上海市政工程设计研究总院(集团)有限公司
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Priority to CN201210052967.5A priority Critical patent/CN103288313B/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/38Treatment of water, waste water, or sewage by centrifugal separation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents

Abstract

The invention discloses a device for elutriation and separation of sludge and treatment and reuse of sewage in a through channel. The device is characterized in that an elutriation and separation pool is arranged under a sludge receiving chute and comprises an elutriation and separation chamber and a sand settling chamber positioned below the elutriation and separation chamber; the elutriation and separation chamber is provided with a slag-dredging and pressing integration machine and a stirring device; the stirring device comprises a hollow transmission shaft, a rotary disc and blades; the hollow transmission shaft is positioned in the elutriation and separation chamber; the rotary disc and the blades are arranged on the hollow transmission shaft; a settled sand conveyor is arranged at the bottom of the sand settling chamber; and a mud absorbing pipe is arranged in the sand settling chamber, penetrates through the hollow transmission shaft and is then connected to a sludge treatment facility by a mud discharging pipe. The device disclosed by the invention has the advantages that the problems of overlarge water consumption, low separation efficiency, need of frequent maintenance for a circulating and lifting pump system and large occupied area of a sewage treatment device in the pretreatment of elutriation of sludge in the through channel are solved; and compared with a traditional push-flow separation type separating device, the device disclosed by the invention has the characteristic that the water is saved by more than one time, and the occupied area is saved by about 1/2.

Description

Ditch mud is eluriated and is separated and waste water treating and reutilizing device and processing reuse method thereof
Technical field
The present invention relates to the ditch mud process field, be specifically related to a kind of ditch mud and eluriate separation and waste water treating and reutilizing device and handle reuse method.
Background technology
Ditch mud is under part free settling material deposits in pipe conveying procedure in rainwater and the sewage, and in pipeline, accumulate gradually, mainly formed by sandstone, dregs and organic matters etc., the auxiliary material that can be used as material of construction carries out utilization of waste material, but ditch mud has also accumulated a large amount of heavy metals, pathogenic micro-organism etc. simultaneously, as not dealing carefully with, not only cause second environmental pollution, and bring great threat to human health.Substantially be that inorganics is compared with western developed country ditch mud solid matter, the characteristics of China's ditch mud be mud based on inorganics, be mingled with foreign material such as a large amount of domestic refuses, bark, masonry, this brings great difficulty for processing of ditch mud.The pretreated purpose of sludge elutriation is exactly that each composition in the ditch mud is separated, so that further separate treatment.Conventional ditch mud is eluriated pre-treatment and is adopted the plug-flow separated type, and Fig. 1 is the structural representation that plug-flow separated type ditch mud is eluriated tripping device in the prior art.Wherein 20 is flocculation sedimentation tank, and 21 are that mud receives steel basin, and 22 is steel platform grid, and 23 are agitator under water, 24 is dragveyer, and 25 is the sand setting transfer roller, and 26 is suction pipe, and 27 is the water inlet pipe of flocculation sedimentation tank, 28 is the rising pipe of flocculation sedimentation tank, and 12 is chemical feed pipe, and 15 is excavating pump.Plug-flow separated type ditch mud is eluriated tripping device in the prior art needs a large amount of elutriation water, usually mud and elutriation water volume ratio are usually more than 1:10, and need set up recycle pump and eluriate the effect of separating to strengthen, this wastes great lot of water resources on the one hand and increases running cost, recycle pump is very easily blocked by grease in the ditch mud on the other hand, recycle pump even can't move when serious; In addition, ditch mud is after eluriating pre-treatment, produce the high sewage of a large amount of silt contents, directly do not drain into the municipal wastewater pipeline as waste disposal plant not being set, cause that very easily sewer line stops up, and traditional settling tank is set, need carry out a large amount of liftings of high-concentration sewage, pump very easily worn and torn in operational process and stop up, and sewage treatment facility take up an area of big, the land resources that waste is valuable.In a word, because huge water consumption and the recycle system is still immature, a series of problems such as its Sewage disposal cause applying of this technology to be subjected to very big restriction in addition.
Summary of the invention
The purpose of this invention is to provide a kind of ditch mud and eluriate and separate and the waste water treating and reutilizing device, can solve that ditch mud eluriates that water consumption is excessive in the preprocessing process, separation efficiency is low, circulation and lift pump system need regular maintenance and waste disposal plant to take up an area of big problem.
To achieve these goals, technical scheme of the present invention is as follows: a kind of ditch mud is eluriated and is separated and the waste water treating and reutilizing device, comprise that mud receives chute, this mud receives the chute top and is provided with steel platform grid, it is characterized in that mud receives chute and divides into the elutriation separate tank, this elutriation separate tank comprises to be eluriated the separate chamber and is positioned at the sand setting chamber of eluriating the below, separate chamber, eluriate to establish in the separate chamber and drag for slag grinding integrative machine and whipping appts, this whipping appts comprises the hollow drive shaft that is positioned at the elutriation separate chamber, and the rotating disk and the blade that are installed in hollow drive shaft, described hollow drive shaft is connected with motor drive driving motion, the sand setting transfer roller is established in bottom, sand setting chamber, sand setting is established suction pipe in the chamber, and suction pipe passes hollow drive shaft and is connected to the sludge treatment facility by shore pipe.Eluriate tripping device and establish water inlet pipe, chemical feed pipe and blow-down pipe, water inlet pipe is established inlet valve, and chemical feed pipe is equipped with the chemical feed pipe valve, and blow-down pipe is provided with the emptying valve.The hollow drive shaft of described whipping appts is connected by the motor drive driving motion of transmission gear box with the band variator.
Another object of the present invention is to provide a kind of ditch mud to eluriate and separate and the waste water treating and reutilizing method, can solve that ditch mud eluriates that water consumption is excessive in the preprocessing process, separation efficiency is low, circulation and lift pump system need regular maintenance and waste disposal plant to take up an area of big problem.
To achieve these goals, technical scheme of the present invention is as follows: a kind of ditch mud is eluriated and is separated and the waste water treating and reutilizing method, it is characterized in that: this method may further comprise the steps: A, unlatching inlet valve make eluriates the interior water level of separate tank above dragging for slag grinding integrative machine grid bottom 150 ~ 200mm, ditch mud directly is discharged on the steel platform grid, thing is isolated and is removed on the bulk grid, and thing slides under the self gravitation effect and eluriates in the separate tank under the grid; B, utilize whipping appts in eluriating separate tank, to form eddy flow, separate to reach to eluriate, mud produces under centrifugal force and the buoyancy of elutriation water at eddy flow, and the contained light materials of mud accelerates come-up, removed by dragging for the slag grinding integrative machine, its squeeze water is back to the elutriation separate tank; The heavy sand setting gets rid of under centrifugal action to the inwall of this elutriation separate tank and with eddy flow and accelerates to deposit to bottom land, is exported by the sand setting transfer roller then; C, chemical feed pipe valve open add sewage flocculant, utilize whipping appts to realize the short mix of flocculation agent and sewage simultaneously; The rotating speed of D, reduction whipping appts, sewage and flocculation agent enter step of reaction; E, stop to stir, sewage enters precipitate phase, and colloid and mud a large amount of in the sewage accelerate to precipitate under the flocculation agent effect, and sink down into the sand setting chamber in action of gravity; F, open excavating pump, by suction pipe with the mud of the indoor high density of sand setting by the bottom sucking-off.
The invention solves that ditch mud eluriates that water consumption is excessive in the preprocessing process, separation efficiency is low, circulation and lift pump system need regular maintenance and waste disposal plant to take up an area of big problem.The present invention adopts the mechanical stirring cyclone mode, need not to arrange separately the elutriation water circulation system; Ditch mud is eluriated device in the present invention and the waste water treating and reutilizing device carries out integrated design, after finishing elutriation at every turn, only need the mud of high density is discharged system, economize on water more than one times than conventional push stream separated type, greatly reduced the water consumption, and other separated type sewage treatment facilities relatively, need not large amount of sewage is entered in the special sewage treatment facility, total system need not to arrange sewage pump and reflux pump, when saving working time, greatly reduced running cost, simultaneously, integrated design has significantly reduced the floor space (reducing 1/2) for the treatment of facility, and the area of construction land anxiety is had very important meaning; Therefore, no matter from water consumption, running cost and occupation of land, ditch mud is eluriated separation and the waste water treating and reutilizing integrated apparatus all has very big advantage.
Description of drawings
Fig. 1 is the structural representation that plug-flow separated type ditch mud is eluriated tripping device in the prior art.
Fig. 2 is the upper strata orthographic plan that ditch mud of the present invention is eluriated separation and waste water treating and reutilizing integrated apparatus.
Fig. 3 is the A-A sectional view that ditch mud of the present invention is eluriated separation and waste water treating and reutilizing integrated apparatus.
Fig. 4 is the B-B sectional view that ditch mud of the present invention is eluriated separation and waste water treating and reutilizing integrated apparatus.
Embodiment
Shown in Fig. 2 ~ 4, a kind of ditch mud is eluriated and is separated and the waste water treating and reutilizing integrated apparatus, comprise and eluriate separate tank 1, it is characterized in that it is 2:1 that this elutriation separate tank 1 is eluriated the 16(of separate chamber tapering by taper) and taper sand setting chamber 17(tapering be 2:1 ~ 1:1) form, eluriate separate tank 1 and be provided with steel platform grid 5, steel platform grid 5 has a mud and receives chute 4, the grid spacing of steel platform grid 5 is 10cm ~ 20cm, elutriation separate tank 1 top is provided with drags for slag grinding integrative machine 2, eluriate the electric motor 6 that separate tank 1 top is provided with the band wheel box, the electric motor 6 of band wheel box drives hollow actuating shaft 8 by transmission gear box 7, driving rotating disk and blade 9 is rotated, suction pipe 10 is set in the sand setting chamber 17, suction pipe 10 passes hollow drive shaft 8 backs and links to each other with excavating pump 15 by shore pipe, eluriates separate tank 1 side and is provided with water inlet pipe 11 and chemical feed pipe 12.Sand setting transfer roller 3 is established in 17 bottoms, sand setting chamber, fixes along the inwall of settling pit 17 bottom cone tanks.Water inlet pipe 11 is provided with automatically controlled inlet valve, and chemical feed pipe 12 is provided with automatically controlled chemical feed pipe valve.Elutriation separate tank 1 can be integral type with mud reception chute 4 and also can independently arrange.Steel platform grid is fixed on whole elutriation separate tank 1 and receives chute 4 tops with mud.Blow-down pipe 13 and emptying valve 14 are established in bottom, sand setting chamber.
At first, open inlet valve and make and eluriate in the separate tank water level and surpass and drag for slag grinding integrative machine bottom, ditch mud directly is discharged on the steel platform grid, thing is isolated and is removed on the bulk grid, and thing slides under the self gravitation effect and eluriates in the separate tank under the grid; Utilize vsm control whipping appts rotating speed, in eluriating separate tank, form eddy flow, adjust rotating speed to optimal separation effect (answer the field adjustable flow velocity, make scum silica frost, sewage and sand setting realize effectively separating); Ditch mud produces under centrifugal force and the buoyancy of elutriation water at eddy flow, and the contained light materials of mud accelerates come-up, is removed by dragging for the slag grinding integrative machine, and its squeeze water is back to the elutriation separate tank; The heavy sand setting gets rid of under centrifugal action to the inwall of this elutriation separate tank and with eddy flow and accelerates to deposit to bottom land, then by the output of sand setting transfer roller (above-mentioned elutriation sepn process needs 10 min ~ 15min, enters the waste water treating and reutilizing operation then); The chemical feed pipe valve open adds sewage flocculant, and (rotating speed is controlled 120 ~ 180r/min), realizes the short mix of flocculation agent and sewage, and short mix continues 20s ~ 40s to adjust the whipping appts rotating speed simultaneously; (rotating speed is controlled 16 ~ 32r/min), and sewage and flocculation agent enter step of reaction, this time length in stage 5min ~ 10min to reduce the whipping appts rotating speed; Stop to stir, sewage enters precipitate phase, and this stage takes 30min ~ 50min, and colloid and mud a large amount of in the sewage accelerate precipitation under the flocculation agent effect, and sink down into the sand setting chamber in action of gravity; Open excavating pump, by suction pipe with the mud of the indoor high density of sand setting by the bottom sucking-off, mud volume is controlled to be sand setting chamber respective volume; The a large amount of clear water of residue are used for eluriating separation next time in the elutriation separate tank, and loss water replenishes by water inlet pipe in the pond.
Drag for slag grinding integrative machine, sand setting transfer roller, sludge treatment facility and the sewage flocculant etc. that adopt among the present invention all belong to prior art, do not repeat them here.

Claims (7)

1. a ditch mud is eluriated and is separated and the waste water treating and reutilizing device, comprise that mud receives chute, this mud receives the chute top and is provided with steel platform grid, it is characterized in that mud receives chute and divides into the elutriation separate tank, this elutriation separate tank comprises to be eluriated the separate chamber and is positioned at the sand setting chamber of eluriating the below, separate chamber, the elutriation separate chamber establishes and drags for slag grinding integrative machine and whipping appts, this whipping appts comprises the hollow drive shaft that is positioned at the elutriation separate chamber, and the rotating disk and the blade that are installed in hollow drive shaft, the sand setting transfer roller is established in bottom, sand setting chamber, sand setting is established suction pipe in the chamber, and suction pipe is connected to the sludge treatment facility by shore pipe after passing hollow drive shaft.
2. device according to claim 1 is characterized in that eluriating tripping device and establishes water inlet pipe, chemical feed pipe and blow-down pipe, and water inlet pipe is established inlet valve, and chemical feed pipe is equipped with the chemical feed pipe valve, and blow-down pipe is provided with the emptying valve.
3. device according to claim 1 is characterized in that eluriating separate tank top and is provided with crossbeam, drags for the slag grinding integrative machine and is fixed on this crossbeam.
4. device according to claim 1 is characterized in that described shore pipe is connected with the sludge treatment facility by excavating pump.
5. device according to claim 1 is characterized in that the hollow drive shaft of this whipping appts is connected by the motor drive driving motion of transmission gear box with the band variator.
6. a ditch mud is eluriated and is separated and the waste water treating and reutilizing method, it is characterized in that: this method may further comprise the steps: A, unlatching inlet valve make eluriates the interior water level of separate tank above dragging for slag grinding integrative machine grid bottom 150 ~ 200mm, ditch mud directly is discharged on the steel platform grid, thing is isolated and is removed on the bulk grid, and thing slides under the self gravitation effect and eluriates in the separate tank under the grid; B, utilize whipping appts in eluriating separate tank, to form eddy flow, separate with the elutriation that reaches mud, mud produces centrifugal force and eluriates under the water buoyancy the contained light materials acceleration of mud come-up at eddy flow, removed by dragging for the slag grinding integrative machine, its squeeze water is back to the elutriation separate tank; The heavy sand setting gets rid of under centrifugal action to the inwall of this elutriation separate tank and with eddy flow and accelerates to deposit to bottom land, is exported by the sand setting transfer roller then; C, chemical feed pipe valve open add sewage flocculant, utilize whipping appts to realize the short mix of flocculation agent and sewage simultaneously; The rotating speed of D, reduction whipping appts, sewage and flocculation agent enter step of reaction; E, stop to stir, sewage enters precipitate phase, and colloid and mud a large amount of in the sewage accelerate to precipitate under the flocculation agent effect, and sink down into the sand setting chamber in action of gravity; F, open excavating pump, by suction pipe with the mud of the indoor high density of sand setting by the bottom sucking-off.
7. method as claimed in claim 6, it is characterized in that: the elutriation disengaging time of step B is 10 min ~ 15min; The short mix time of step C is 20s ~ 40s; The step of reaction time length of step D is 5min ~ 10min; The precipitate phase time of step e is 30min ~ 50min.
CN201210052967.5A 2012-03-02 2012-03-02 Thorough cut sludge elutriating separation and waste water treating and reutilizing device and treatment for reuse method thereof Active CN103288313B (en)

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CN201510870133.9A CN105417904B (en) 2012-03-02 2012-03-02 Thorough cut sludge elutriating separates and waste water treating and reutilizing method
CN201210052967.5A CN103288313B (en) 2012-03-02 2012-03-02 Thorough cut sludge elutriating separation and waste water treating and reutilizing device and treatment for reuse method thereof

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Publication number Priority date Publication date Assignee Title
CN104230123A (en) * 2014-09-29 2014-12-24 重庆大学 Devices for removing inorganic particles in sewage treatment system
CN105481213A (en) * 2015-12-16 2016-04-13 温州市兴业市政建设有限公司 Mud-water separation and solidification device
CN105668960A (en) * 2016-03-04 2016-06-15 温州市兴业市政建设有限公司 Automatic mud-water separation processing system
CN110227287A (en) * 2019-06-20 2019-09-13 广州市欧树环保科技有限公司 A kind of rotational flow grit chamber with speed regulation and sand discharge function

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CN106310736A (en) * 2016-10-31 2017-01-11 四川乐根水处理设备有限公司 Integrated waste water treatment equipment
CN108675581B (en) * 2018-07-13 2020-05-22 黑龙江兰德超声科技股份有限公司 Municipal administration mud is silt separator for treatment

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CN105481213A (en) * 2015-12-16 2016-04-13 温州市兴业市政建设有限公司 Mud-water separation and solidification device
CN105668960A (en) * 2016-03-04 2016-06-15 温州市兴业市政建设有限公司 Automatic mud-water separation processing system
CN110227287A (en) * 2019-06-20 2019-09-13 广州市欧树环保科技有限公司 A kind of rotational flow grit chamber with speed regulation and sand discharge function

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CN103288313B (en) 2016-06-08
CN105417904A (en) 2016-03-23

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