CN103663889A - Thorough cut sludge elutriation separator stirring device - Google Patents

Thorough cut sludge elutriation separator stirring device Download PDF

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Publication number
CN103663889A
CN103663889A CN201310586223.6A CN201310586223A CN103663889A CN 103663889 A CN103663889 A CN 103663889A CN 201310586223 A CN201310586223 A CN 201310586223A CN 103663889 A CN103663889 A CN 103663889A
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Prior art keywords
sludge
elutriation
thorough cut
mud
sludge sump
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CN201310586223.6A
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Chinese (zh)
Inventor
龙吉生
朱晓平
白力
石剑菁
瞿兆舟
冯淋淋
王湘徽
段广杰
陆锟
董文芳
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Shanghai SUS Environment Co Ltd
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Shanghai SUS Environment Co Ltd
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Priority to CN201310586223.6A priority Critical patent/CN103663889A/en
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Abstract

The invention relates to improvement of a thorough cut sludge elutriation separator stirring device, in particular to the thorough cut sludge elutriation separator stirring device which comprises a sludge tank, an aerating apparatus, a slag conveyor and a settling sand conveyor, wherein the pipeline inlet of the aerating apparatus is formed in the front end of the sludge tank; an aerating pipeline of the sludge tank is paved at the bottom of the sludge tank, and the arrangement direction of the aerating pipeline is the same as the flow direction of rinsing water. The experiment result shows that an air type stirring thorough cut sludge elutriation separator disclosed by the invention is obviously better than the existing mechanical stirring thorough cut sludge elutriation separator in COD and the removal rate of hot igloss rate.

Description

A kind of sewer sludge elutriation and separation machine whipping appts
Technical field
The present invention relates to the improvement of sewer sludge elutriation and separation machine whipping appts.
Background technology
What publication number was that the whipping appts of CN101838089B, the publication number sewer sludge elutriation and separation machine that is CN201120132375 adopts is mechanical agitation type, referring to Figure of description 1, and Fig. 3 and Fig. 5.In figure, sewer sludge elutriation and separation machine consists of sludge sump 1, dragveyer 3, sand setting transfer roller 4 and stirring rake 5, at sludge sump leading portion, impeller oar blade type stirring rake is set.Stirring rake constantly rotates, nozzle constantly sprays into high pressure cleaning water, the waterpower that both produce and mechanical force jointly promote mud and move to sludge sump rear, current are rubbed mud simultaneously, impel each component of mud separated, the lightweight scum silica frost that proportion is little floats on the sludge sump water surface, and heavy heavy sand setting sinks to sludge sump bottom, and corrupt organic matter is dissolved in rinse water.
But there is following shortcoming in this mechanical agitation type washing device: 1) stirring rake is easily mutually wound around with larger-size solid waste (as plastics) in whipping process, causes motor load overload, causes and shut down even motor damage; 2) in ditch mud, gravel content is many, easy to wear in blade rotary course; 3) stirring rake need arrange tightness system at the link position of sludge sump, and running easily causes ring wear for a long time, occurs infiltration, drainage.
Summary of the invention
The object of this invention is to provide a kind of improved sewer sludge elutriation and separation machine whipping appts, to overcome the shortcoming of mechanical agitation type sewer sludge elutriation and separation machine, improve sludge elutriation separating effect.
Technical scheme provided by the invention is: a kind of sewer sludge elutriation and separation machine whipping appts, change existing mechanical agitation type device into pneumatic blending formula device, and by sludge sump, aerating apparatus, dragveyer, sand setting transfer roller, formed; Described aerating apparatus conduit entrance is arranged on the front end of sludge sump, and the aerated conduit in sludge sump is laid in sludge sump bottom, settles direction consistent with the flow direction of rinse water, prevents that pipeline is stifled to blocking of mud.
Further, described aerating apparatus is microporous aeration device; Gas blower is delivered to microporous aeration device by air, the pipeline below of microporous aeration device is provided with air escape orifice, prevent the obstruction to escape orifice in mud dropping process, in the micro-bubble effusion water that height of formation disperses, adhere to the suspended particle in waste water, form apparent density and be less than the flco of water and float to the water surface, form lightweight scum layer and struck off.
Compared to mechanical agitation type sludge elutriation machine, the sludge elutriation separating machine whipping appts after improvement has the following advantages:
1) the sealing member that mechanical type stirs is used needs to change half a year, and air type whipping appts is without sealing member, without Stirring, and without frictional dissipation, can long-time running, extended the work-ing life of equipment;
2) do not have the winding problem of bulk solid refuse, operation more safety is smooth and easy;
3) sealing of the intake ducting of microporous aeration device and sludge sump sidewall belongs to static sealing, and seal operation is simple, sealing effectiveness can be better;
4) elutriation effect is better: the high-density micro-bubble that pneumatic blending formula produces, in uphill process, can drive current to rub in the vertical direction mud, impels mud component separated; The apparent density that can reduce suspended substance after the suspended substance of small bubbles adhesion simultaneously, promotes lightweight scum silica frost to rise, and makes scum silica frost separation more fully thoroughly, and the sewage quality that cleaning produces is optimized.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing machinery stirring-type sewer sludge elutriation and separation machine.
Fig. 2 is the structural representation of pneumatic blending formula sewer sludge elutriation and separation machine of the present invention
Fig. 3 is the vertical view of existing machinery stirring-type sewer sludge elutriation and separation machine.
Fig. 4 is the vertical view of pneumatic blending formula sewer sludge elutriation and separation machine of the present invention.
Fig. 5 is the mechanics schematic diagram of existing machinery stirring-type thorough cut sludge elutriating device.
Fig. 6 is the mechanics schematic diagram of pneumatic blending formula thorough cut sludge elutriating device of the present invention.
Embodiment
As shown in Figure 2, the structural representation of sewer sludge elutriation and separation machine of the present invention, is to change existing mechanical agitation type device into pneumatic blending formula device, sludge sump 1, microporous aeration device 2, dragveyer 3, sand setting transfer roller 4, consists of; Described aerating apparatus conduit entrance is arranged on the front end of sludge sump 1, and the aerated conduit in sludge sump is laid in sludge sump bottom, settles direction consistent with the flow direction of rinse water, as shown in Figure 4, prevents that pipeline is stifled to blocking of mud.
The present invention adopts aeration By Bubble-floating Method, adopts gas blower and microporous aeration device 2.Gas blower (not shown) is delivered to microporous aeration device by air, air escape orifice is positioned at the below of micro-pore aeration pipeline, prevent the obstruction to escape orifice in mud dropping process, in the micro-bubble effusion water that height of formation disperses, adhere to the suspended particle in waste water, form apparent density and be less than the flco of water and float to the water surface, form lightweight scum layer and struck off.
After whipping appts improves, need be by half left and right of the contraction in length of existing sludge sump.Fig. 5 and Fig. 6 are the schematic diagram of two kinds of different whipping apptss to mud and rinse water reactive force.Wherein, the mechanical force that in Fig. 5, stirring rake 5 rotations of existing mechanical agitation type sludge elutriation separating machine produce, except stirring action, is mainly that generation impellent promotes mud and clear water flows backward.The reactive force that the air stirrer that in Fig. 6, the present invention adopts produces is mainly the air supporting effect producing in ease process on small bubbles.The intake ducting of air stirrer tilts, and the bubble of formation also has impellent to mud and rinse water, but effect is little.Therefore, after device improves, the velocity of flow of mud and rinse water slows down, but the elutriation separation of mud has been accelerated again in air supporting effect, so the length of sludge sump needs to shorten.
Working process of the present invention is:
1. before mud discharging, first toward sludge sump 1, inject rinse water, by water inlet pipe, entered, through nozzle ejection, to sludge sump 1, when liquid level is to overflow port height, can carry out discharging.
2. ditch mud is discharged into sludge sump 1 from feeding mouth, and the microporous aeration device 2 of sludge sump 1 front end is constantly inflated, and nozzle constantly sprays into high pressure cleaning water.Waterpower promotes mud and moves to sludge sump 1 rear, and current horizontal direction is rubbed mud; The bubbles entrain rinse water vertical direction that microporous aeration device produces is rubbed mud, and high-density micro-bubble adheres to suspended substance simultaneously, promotes lightweight scum silica frost to rise.Under waterpower and air supporting acting in conjunction, impel each component of mud separated, the lightweight scum silica frost that proportion is little floats on the sludge sump water surface, and heavy heavy sand setting sinks to sludge sump bottom, and corrupt organic matter is dissolved in rinse water.
3. dragveyer 3 is pulled the scum silica frost producing in sludge elutriation sepn process out.
4. sand setting transfer roller 4 is sent the sand setting of sludge sump 1 bottom.
5. sewage enters sewage network by overflow port.
The proterties of evaluating ditch mud mainly contains two indexs: one is the COD concentration in mud, another hot burn decrement rate that is ditch mud.Therefore, in experiment under identical rinse water multiplying power condition, by analyzing these two indexs, contrast and weigh mechanical type and stir with air type and stir the elutriation separating effect of thorough cut sludge elutriating tripping device to mud, experimental result is as following table.
Figure 505017DEST_PATH_IMAGE001
Interpretation:
1. from example 1-1-1-5, find out: along with rinse water multiplying power is brought up to 20 times from 3 times, two kinds of alr modes all make the clearance of ditch mud COD and hot burn decrement rate be significantly improved.
2. under identical rinse water multiplying power condition, the experimental result of two kinds of alr modes of contrast can be found out: air type of the present invention stirs the COD of thorough cut sludge elutriating tripping device and the clearance of hot burn decrement rate is all obviously better than existing mechanical type stirring thorough cut sludge elutriating tripping device.
To sum up, in the identical situation of experiment condition, air type stirs ditch mud tripping device the elutriation separating effect of ditch mud is wanted to better.

Claims (2)

1. a sewer sludge elutriation and separation machine whipping appts, is characterized in that, sludge sump, aerating apparatus, dragveyer, sand setting transfer roller, consists of; Described aerating apparatus conduit entrance is arranged on the front end of sludge sump, and the aerated conduit in sludge sump is laid in sludge sump bottom, settles direction consistent with the flow direction of rinse water.
2. a kind of sewer sludge elutriation and separation machine whipping appts according to claim 1, is characterized in that, described aerating apparatus is microporous aeration device; The pipeline below of microporous aeration device is provided with air escape orifice.
CN201310586223.6A 2013-05-17 2013-11-21 Thorough cut sludge elutriation separator stirring device Pending CN103663889A (en)

Priority Applications (1)

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Applications Claiming Priority (3)

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CN201320270379.9 2013-05-17
CN201320270379.9 2013-05-17
CN201310586223.6A CN103663889A (en) 2013-05-17 2013-11-21 Thorough cut sludge elutriation separator stirring device

Publications (1)

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CN103663889A true CN103663889A (en) 2014-03-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107324622A (en) * 2017-07-18 2017-11-07 甘肃蓝科石化高新装备股份有限公司 A kind of dirty desanding method of excrement and desanding device
CN110743698A (en) * 2019-09-29 2020-02-04 湖北工业大学 A kind of device and method for separating and collecting sand and scum in sediments

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010009598A (en) * 1999-07-12 2001-02-05 류재근 Sludge Separation in Aeration Tank Type Livestock Wastewater Treatment Facility
CN101838089A (en) * 2010-06-13 2010-09-22 无锡雪浪输送机械有限公司 Sewer sludge elutriation and separation machine
CN102228859A (en) * 2011-06-08 2011-11-02 潍坊金丝达实业有限公司 Garbage washing flotation machine
CN204198566U (en) * 2013-05-17 2015-03-11 上海康恒环境股份有限公司 A kind of sewer sludge elutriation and separation machine whipping appts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010009598A (en) * 1999-07-12 2001-02-05 류재근 Sludge Separation in Aeration Tank Type Livestock Wastewater Treatment Facility
CN101838089A (en) * 2010-06-13 2010-09-22 无锡雪浪输送机械有限公司 Sewer sludge elutriation and separation machine
CN102228859A (en) * 2011-06-08 2011-11-02 潍坊金丝达实业有限公司 Garbage washing flotation machine
CN204198566U (en) * 2013-05-17 2015-03-11 上海康恒环境股份有限公司 A kind of sewer sludge elutriation and separation machine whipping appts

Non-Patent Citations (4)

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Title
杨新海等: "上海市长宁区通沟污泥处理工程方案研究", 《环境卫生工程》 *
沈季南等: "上海市长宁区废弃物综合处置中心工程设计", 《中国市政工程》 *
芈振明等: "《固体废物的处理与处置(修订版)》", 31 October 1993, 高等教育出版社 *
邹锦林等: "通沟污泥淘洗预处理及工艺参数优化研究", 《环境卫生工程》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107324622A (en) * 2017-07-18 2017-11-07 甘肃蓝科石化高新装备股份有限公司 A kind of dirty desanding method of excrement and desanding device
CN110743698A (en) * 2019-09-29 2020-02-04 湖北工业大学 A kind of device and method for separating and collecting sand and scum in sediments
CN110743698B (en) * 2019-09-29 2021-07-06 湖北工业大学 A kind of device and method for separating and collecting sand and scum in sediments

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