CN202576190U - Combined sludge deep dehydration device - Google Patents
Combined sludge deep dehydration device Download PDFInfo
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- CN202576190U CN202576190U CN 201220195156 CN201220195156U CN202576190U CN 202576190 U CN202576190 U CN 202576190U CN 201220195156 CN201220195156 CN 201220195156 CN 201220195156 U CN201220195156 U CN 201220195156U CN 202576190 U CN202576190 U CN 202576190U
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Abstract
The utility model belongs to the environmental engineering sludge treatment field. A combined sludge deep dehydration device comprises a chemical preconditioning unit and a high pressure diaphragm compartment type filter pressing unit. A material adding unit of the chemical preconditioning unit is communicated with the top of a sludge storage groove, the bottom of the sludge storage groove is communicated with a shallow layer material feeding pipe, and a stirrer is mounted in the sludge storage groove. An outlet pipeline of the sludge storage groove is communicated with the high pressure diaphragm compartment type filter pressing unit, provided with a sludge feeding screw pump and communicated with a sludge inlet of a filter press. An air compressor is communicated with the filter press through a pipeline, material conveying and guiding hopper devices are arranged at the bottom of the filter press, a liquid receiving turnover device is arranged between the material conveying and guiding hopper devices, and outlets of the material conveying and guiding hopper devices right face a conveyor. According to the combined sludge deep dehydration device, the sludge cake water content after excess sludge is dehydrated is 60%, accordingly, excess sludge sources are reduced apparently, and the final treatment cost is reduced, and the purpose of resource utilization is promoted.
Description
Technical field
The utility model relates to a cover built-up type sludge deep dehydrator, belongs to the environmental engineering field of sludge treatment.
Background technology
Mud machinery thickening technology:
Activated sludge process is most important, the most universal sewage water treatment method of present China, yet along with the raising of its sewage treatment capacity and efficient, sludge yield increases day by day.China municipal sewage plant generally adopts mud machinery thickening technology to reduce the water ratio of mud to the processing of excess sludge in recent years, realizes the minimizing of mud.Mud machinery thickening technology is after mud is carried out conventional dosing (flocculation agent PAM) pre-treatment, concentrates through machinery again, and mechanism filter-pressing processed or machinery concentrate, the sludge reduction technology of centrifugal dehydration treatment.
Technological based on the pretreated mechanical thickening of mud:
At present, the pre-treatment of conventional mud is meant adds chemical agent-cationic flocculant PAM in mud, makes the mud granule flocculation, and resistivity reduces, and improves dewatering.
Concentrate the mechanical thickening technology of filter-press dehydration or centrifuge dehydration based on gravity:
Sludge concentration method commonly used at present has the gravity method of enrichment; Principle is that mud precipitates compression under the effect of particle gravity; Thereby the interstitial water in the reduction mud; Realize reducing sludge volume, for the follow-up mechanical dehydration of mud creates conditions, gravity concentrates and can realize through gravity concentration basin or mechanical thickening equipment.
Mechanical sludge dewatering method commonly used at present has filter press technique and centrifuging, and its ultimate principle is identical.Mechanical sludge dewatering be pressure difference with the filtration medium two sides as impellent, make sludge water content be forced through filtration medium, form filtrating; And solid particulate is trapped within on the medium, forms filter cake, thereby reaches the purpose of dehydration.The method of build-up of pressure difference impellent commonly used has 2 kinds at present: pressurized sludge is crossed medium (like filter-press dehydration) to water partial pressure; Cause cf-(like centrifuge dehydration).
In recent years; More new development along with domestic mud machinery thickening treatment technology; Machinery thickening integration apparatus has obtained researching and developing widely and using, and is the belt thickening all-in-one of application principle, traditional plate-and-frame filter press with the filter-press dehydration, is the spiral shell centrifuge for sleeping in of application principle with the centrifuge dehydration; Butterfly spiral shell formula sludge dewatering equipment that is application principle with range upon range of filtration and screw press etc. is applied in the excess sludge processed technology of municipal wastewater treatment plant of various scales; And practical applications up till now proves, adopts above-mentioned mechanical thickening technology and equipment, and the sludge reduction level is low; Can only be difficult to further reduce the water ratio of mud with the sludge dewatering of water ratio more than 93% to water ratio 75-80%.Moisture percentage in sewage sludge is the restriction key issue that sludge treatment is disposed and utilized.High-moisture percentage is the bottleneck that sludge treatment is disposed.The key problem in technology that sludge treatment is disposed is dehydration, and this is the prerequisite of sludge ultimate disposal.Above-mentioned traditional sludge dewatering equipment; Can only excess sludge be dewatered to water ratio about 80%; It then is the requirement of deeply dehydrating sludge that water ratio reduces to 60%; 60% water ratio is the requirement of refuse landfill, is the starting point of ultimate disposal technology landfill and compost, how to realize that through technological innovation deeply dehydrating sludge is the task of top priority.
Sludge drying technique:
At present, realize that the another kind of technology that deeply dehydrating sludge is handled is a sludge drying, the water ratio that reduces mud through drying plant (heating evaporation principle) is (even lower below 50%; About 10%); Though moisture percentage in sewage sludge significantly reduces, energy consumption is bigger, and cost of investment and running cost are higher; This technology does not meet current energy-saving and cost-reducing technical requirements, so the feasibility that urban wastewater treatment firm is generally applied is not strong.
Summary of the invention
The utility model is to apply the not strong weak tendency of feasibility to low shortcoming and the sludge drying technique of dehydration rate that existing mud machinery thickening technology exists; A kind of built-up type sludge deep dehydrator is provided; Simple in structure, the water ratio of mud reduces to 60% after this apparatus processes, thereby realizes the remarkable minimizing in mud source; Reduce the ultimate disposal cost, promote the purpose of recycling.
The utility model for realizing the technical scheme that above-mentioned purpose adopted is: the built-up type sludge deep dehydrator, comprise chemical preconditioned unit and autoclave diaphragm van-type press filtration unit, and said chemical preconditioned unit comprises into dredge pump; Mud storage tank and material throwing device; The material throwing device is communicated with mud storage tank top, and mud storage tank bottom is communicated with the sewage sludge feed pipe, in the mud storage tank whisking appliance is housed; Mud storage tank export pipeline is communicated with autoclave diaphragm van-type press filtration unit; Said autoclave diaphragm van-type press filtration unit comprises pressure filter, air compressor machine, conveying material guiding hopper device and transfer roller, and into mud spiral pump is installed on the mud storage tank export pipeline, and is communicated with the pressure filter mud inlet; Air compressor machine is through the pipeline connection pressure filter; The material guiding hopper of conveying device is arranged at the pressure filter bottom, carries to be equipped with between the material guiding hopper device to connect the liquid turning device, carries the outlet of material guiding hopper device over against transfer roller.
Said material throwing device adopts dry powder throwing device and liquid throwing device; The dry powder throwing device is to be made up of storage hopper, electronic scale and vacuum take-off throwing device; Electronic scale is equipped with in the storage hopper bottom; Storage hopper is through pipeline connection vacuum take-off throwing device, and the vacuum take-off throwing device is communicated with the mud storage tank, and the liquid throwing device is through being equipped with the pipeline connection mud storage tank of volume pump.
Said pressure filter top is equipped with two bar water flushing devices, and two bar water flushing devices are aimed at the intravital filter cloth of filter press machine.
The said bottom that connects the liquid turning device connects liquid bath wash-down water export pipeline and is communicated with the mud storage tank.
Said transfer roller adopts rotary conveyor.
The utility model possesses following characteristics:
Dewatering rate is high; Minimizing level in source is high: this device can be 99.2% the disposable dehydration to 60% of excess sludge with water ratio; Sludge volume has reduced 98%, compares with the excess sludge volume that dewaters to water ratio 80%, and sludge volume has reduced half the; Significantly improve mud source minimizing level, dirt, energy-saving and emission-reduction are cut in the realization source.
Reduce the ultimate disposal cost: the sludge volume after the dehydration significantly reduces, and has reduced transport difficulty, has practiced thrift transportation cost; Mud after the dehydration is dried pie; Do not produce percolate, can directly advance refuse landfill and carry out landfill, can directly be ground into the laggard windrow fertilizer of particle and utilize again; Or directly apply to incineration disposal, thereby reduced the ultimate disposal cost of mud.
Possess sterilization, deodorization functions: through lime and the heat of water reaction generation and the raising of pH value, the mud in the mud storage tank is carried out pasteurization, kill Salmonellas and intestinal bacteria, through passing through FeCl
3The hydrolysis heat release, destroying with protein is the cell walls on basis and the cell tissue and the grease of enzyme, acid RNA, glucide, realizes sterilization, thereby guarantees to utilize or the wholesomeness of disposal again; FeCl
3Be a kind of oxygenant simultaneously, it can effectively control foul smell to the oxidation of reducing gas hydrogen sulfide, has improved the environment of sludge treatment.
Equipment is simple, and flow process is succinct: total system clear process, equipment are simple, through system continuously operation make native system possess the mud source to cut the function that dirt, energy-saving and emission-reduction, promotion realize recycling and reduce the ultimate disposal cost.
Description of drawings
Fig. 1 is the structural representation of the utility model built-up type sludge deep dehydrator.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to describe in detail:
Shown in figure, the built-up type sludge deep dehydrator comprises chemical preconditioned unit C1 and autoclave diaphragm van-type press filtration unit C2; Said chemical preconditioned unit comprises into dredge pump, and mud storage tank E1 and material throwing device, material throwing device are communicated with mud storage tank top; Mud storage tank bottom is communicated with the sewage sludge feed pipe, and whisking appliance E2 is housed in the mud storage tank, and mud storage tank export pipeline is communicated with autoclave diaphragm van-type press filtration unit; The material throwing device adopts dry powder throwing device and liquid throwing device; The dry powder throwing device is to be made up of storage hopper E4, electronic scale and vacuum take-off throwing device, and electronic scale E5 is equipped with in the storage hopper bottom, and storage hopper is through pipeline connection vacuum take-off throwing device E6; The vacuum take-off throwing device is communicated with the mud storage tank, and liquid throwing device E3 is through being equipped with the pipeline connection mud storage tank of volume pump.
Said autoclave diaphragm van-type press filtration unit C2 comprises pressure filter E7, air compressor machine E8, carries material guiding hopper device and transfer roller; Into mud spiral pump E9 is installed on the mud storage tank export pipeline, and is communicated with the pressure filter mud inlet, air compressor machine is through the pipeline connection pressure filter; The material guiding hopper of conveying device E13 is arranged at the pressure filter bottom; Carry to be equipped with between the material guiding hopper device to connect the liquid turning device, carry the outlet of material guiding hopper device over against transfer roller E14, transfer roller adopts rotary conveyor.Said pressure filter top is equipped with two bar water flushing device E10, and two bar water flushing devices are aimed at the intravital filter cloth of filter press machine, and the bottom that meets liquid turning device E12 connects liquid bath E11 wash-down water export pipeline and is communicated with the mud storage tank.
Whole system also comprises into dredge pump P1, filter cloth flushing water pump P2, volume pump P3, charging motorized valve P4, air blowing motorized valve P5, pressure transmitter P6, magnetic flow meter P7, mud liquidometer P8.
During work; Excess sludge after mud storage pond gravity concentrates is by P1-advance dredge pump to be promoted to the E1-mud storage tank in the C1 unit through G1, G2 pipeline; Be provided with the mud liquid level that P8-mud liquidometer is used to control storage tank in the mud storage tank; Simultaneously, prepare in E3-flocculating agent B and prepare FeCl in the throwing device
3Solution is laid in through E5-electronic scale weighing dry powder CaO and in E4-alkaline agent A storage hopper, after solution, dry powder prepare, starts P3-flocculating agent B dosing volume pump and in E1, adds flocculation agent FeCl
3Solution starts E6-alkaline agent A vacuum take-off throwing device and in E1, adds dry powder CaO, then starts E2-whisking appliance, constantly stirs mud and conditioning medicament, makes its hybrid reaction abundant, improves dewatering performance of sludge.
E1 stops into mud after advancing full mud, closes P1.After treating that sludge conditioning is intact, get into the unitary processing of C2: startup E9-advance the mud spiral pump, alkaline sludge gets into E7---barrier film chamber-type press filter through G3, G4 pipeline; The G4 pipeline is provided with P6-pressure transmitter, P7-magnetic flow meter, is used to show the feed pressure and the mud discharge of pressure filter, and charging mud makes filtrating pass filter cloth; Solid is held back the formation filter cake by filter cloth, and along with filtration is carried out, feed pressure continues to raise; Filter chamber is filled up by filter cake gradually, and feed pressure reaches maximum and remains unchanged for a long time, and input speed reduces; In the filtering while of charging; Alkaline filtrate flows to E11-connect in the liquid bath through the G5 pipeline, and is back in the mud storage tank through the G6 pipeline, carries out the circulation conditioning of mud.Subsequently, start E8-air compressor machine, blow advancing the mud pipeline; The anti-simultaneously line clogging of filter cake solid content be can improve, E9, P4, P5 closed then, injecting compressed air in the diaphragm plate barrier film; Drum is opened barrier film and is carried out the squeezing of diaphragm plate and screen plate; Further reduce water ratio, the secondary diaphragm pressing begins automatic arm-tie and unloads cake after handling; Filter cake is removed and drops on E14-rotary conveyor and transfer out through E13-conveying material guiding hopper, carries out that compost utilizes again or directly landfill disposal or other ultimate disposals; In cycle, arm-tie gets into the flushing filter cloth stage after unloading the cake end in each sludge treatment; E12-connect liquid panel turnover device is closed; P2-filter cloth flushing water pump operation, E10-two bar water flushing devices start, and E15-nozzle water spray is the flushing filter cloth automatically, guarantees that the strainability of filter cloth is good; Wash-down water inserts E11-connect in the liquid bath through turnover panel, and is back in E1-mud storage tank.Like this, accomplished a deeply dehydrating sludge and handled the whole flow process in cycle, the moisture content of the cake after the processing is below 60%.
Claims (5)
1. built-up type sludge deep dehydrator, it is characterized in that: it comprises chemical preconditioned unit and autoclave diaphragm van-type press filtration unit, and said chemical preconditioned unit comprises into dredge pump; Mud storage tank and material throwing device, material throwing device are communicated with mud storage tank top, and mud storage tank bottom is communicated with shallow-layer mud feed-pipe; In the mud storage tank whisking appliance is housed, mud storage tank export pipeline is communicated with autoclave diaphragm van-type press filtration unit, and said autoclave diaphragm van-type press filtration unit comprises pressure filter, air compressor machine, conveying material guiding hopper device and transfer roller; Into mud spiral pump is installed on the mud storage tank export pipeline; And be communicated with the pressure filter mud inlet, and air compressor machine is through the pipeline connection pressure filter, and the material guiding hopper of conveying device is arranged at the pressure filter bottom; Carry to be equipped with between the material guiding hopper device to connect the liquid turning device, carry the outlet of material guiding hopper device over against transfer roller.
2. built-up type sludge deep dehydrator according to claim 1; It is characterized in that: said material throwing device adopts dry powder throwing device and liquid throwing device; The dry powder throwing device is to be made up of storage hopper, electronic scale and vacuum take-off throwing device, and electronic scale is equipped with in the storage hopper bottom, and storage hopper is through pipeline connection vacuum take-off throwing device; The vacuum take-off throwing device is communicated with the mud storage tank, and the liquid throwing device is through being equipped with the pipeline connection mud storage tank of volume pump.
3. built-up type sludge deep dehydrator according to claim 1 is characterized in that: said pressure filter top is equipped with two bar water flushing devices, and two bar water flushing devices are aimed at the intravital filter cloth of filter press machine.
4. built-up type sludge deep dehydrator according to claim 1 is characterized in that: the said bottom that connects the liquid turning device connects liquid bath wash-down water export pipeline and is communicated with the mud storage tank.
5. built-up type sludge deep dehydrator according to claim 1 is characterized in that: said transfer roller adopts rotary conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195156 CN202576190U (en) | 2012-05-03 | 2012-05-03 | Combined sludge deep dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195156 CN202576190U (en) | 2012-05-03 | 2012-05-03 | Combined sludge deep dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576190U true CN202576190U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220195156 Expired - Lifetime CN202576190U (en) | 2012-05-03 | 2012-05-03 | Combined sludge deep dehydration device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693841A (en) * | 2013-12-24 | 2014-04-02 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN105967495A (en) * | 2016-06-23 | 2016-09-28 | 金旭群 | Movable type sludge dehydration environment-friendly treatment device and treatment method thereof |
| CN109160707A (en) * | 2018-09-30 | 2019-01-08 | 广东溢丰环保科技有限公司 | A method of improving sludge dewatering efficiency |
| CN109731378A (en) * | 2019-03-11 | 2019-05-10 | 苏州艾信工程技术有限公司 | A kind of sludge solid-liquid separation integrated device |
| CN113582504A (en) * | 2021-07-29 | 2021-11-02 | 海南天鸿市政设计股份有限公司 | Simple and easy high-efficient sludge thickening dehydration all-in-one |
-
2012
- 2012-05-03 CN CN 201220195156 patent/CN202576190U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693841A (en) * | 2013-12-24 | 2014-04-02 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN103693841B (en) * | 2013-12-24 | 2015-05-20 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN105967495A (en) * | 2016-06-23 | 2016-09-28 | 金旭群 | Movable type sludge dehydration environment-friendly treatment device and treatment method thereof |
| CN109160707A (en) * | 2018-09-30 | 2019-01-08 | 广东溢丰环保科技有限公司 | A method of improving sludge dewatering efficiency |
| CN109731378A (en) * | 2019-03-11 | 2019-05-10 | 苏州艾信工程技术有限公司 | A kind of sludge solid-liquid separation integrated device |
| CN113582504A (en) * | 2021-07-29 | 2021-11-02 | 海南天鸿市政设计股份有限公司 | Simple and easy high-efficient sludge thickening dehydration all-in-one |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |