CN202688157U - Continuous type hydrothermal-flash evaporation device for municipal sludge - Google Patents

Continuous type hydrothermal-flash evaporation device for municipal sludge Download PDF

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Publication number
CN202688157U
CN202688157U CN 201220133792 CN201220133792U CN202688157U CN 202688157 U CN202688157 U CN 202688157U CN 201220133792 CN201220133792 CN 201220133792 CN 201220133792 U CN201220133792 U CN 201220133792U CN 202688157 U CN202688157 U CN 202688157U
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China
Prior art keywords
reactor
sludge
mud
municipal sludge
flash
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Expired - Lifetime
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CN 201220133792
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Chinese (zh)
Inventor
邓舟
夏洲
张超
范永信
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Qingdao Wei Xin Hua Energy Technology Co Ltd
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Beijing Jiankun Weihua New Energy Science & Technology Co Ltd
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Abstract

The utility model discloses a treatment device for municipal sludge. The treatment device comprises a raw mud buffer bin for temporarily storing sludge to be treated, a pulping reactor for preheating and pulping the sludge, a hydrothermal reactor for hydrothermally reacting the sludge through steam heating, a flash evaporation reactor for performing flash evaporation on the sludge for pressure release, a sludge cooler for cooling the sludge, and a dewatering machine for dewatering the sludge. The municipal sludge can directly enter an anaerobic digestion reactor after being treated by the treatment device. The municipal sludge can be also directly dewatered to obtain a dewatered mud cake with water content of 30-55% and dewatered filter liquid, the dewatered filter liquid can be treated by a high-efficiency anaerobic reactor, biomass fuel gas is recovered, and the dewatered mud cake can be burned to recover energy of the dewatered mud cake or is transported to a sanitary landfill for landfilling. The purposes of reduction, harmlessness and reutilization of municipal sludge treatment can be achieved.

Description

Municipal sludge continous way hydro-thermal-flash distillation plant
Technical field
The utility model relates to sludge treatment, and particularly a kind of urban sludge treatment device belongs to field of solid waste treating technology.
Background technology
Along with urbanization process is more and more faster, generation and the processing rate of city domestic sewage are also more and more higher, although taked the whole bag of tricks to cut down the output of municipal sludge, its total amount increases progressively with annual 10% speed.The mud of sewage work generally all is the method that adopts " anaerobic digestion-dosing dehydration ", reaches approximately 80% water ratio, then is transported to the sanitary filling field landfill.80% mud still has certain flowability, makes troubles for the operations such as transportation, landfill, and has the hidden danger of secondary pollution.Along with the reinforcement of country for municipal sludge ultimate disposal management, municipal sludge be processed into sewage work's problem demanding prompt solution.
In recent years, sludge water heat drying technology development.The hydrothermal treatment consists technology can make insoluble mud granule disintegrate, cell rupture, and the organic one-step hydrolysis of going forward side by side that discharges of cell, the biodeposition of Effective Raise mud and dehydration property improve the biodegradability of mud and liquid phase thereof simultaneously.Yet, former " urban sludge treating method " (ZL200410098692.4) in the mode of interchanger as energy recovery, because existing technique continuous not, and fouling of heat exchangers and cause the factors such as thermo-efficiency reduction, replaced by the technology mode of " continous way hydro-thermal-flash distillation " gradually.
The utility model content
The utility model is for the mud of existing municipal sewage plant tail end water ratio 75%~90%, a kind of sludge treatment equipment is provided, with high-temperature steam heating mud, mode recovered energy by flash distillation, then dehydration, and then reach the purpose that municipal sludge is processed minimizing, innoxious, resource utilization.
In order to achieve the above object, the utility model provides a kind of urban sludge treatment device, comprise successively: the former mud surge bunker of temporary pending mud, with described mud preheating, the pulp reactor of pulp, described mud is carried out the hydrothermal reactor of hydro-thermal reaction by steam heating, described mud is carried out the flashing reactor of flash distillation release, the mud water cooler of cooling flash distillation mud, and be connected on the water extracter that described mud dewatered behind the described mud water cooler or the anaerobic digestion equipment of subsequent disposal, described former mud surge bunker, the pulp reactor, hydrothermal reactor, flashing reactor and mud water cooler are connected in the path successively.
Further, described pulp reactor, hydrothermal reactor and flashing reactor all are provided with sludge outlet in bottom center, and upper side is provided with the mud entrance;
Further, described pulp reactor head is provided with vapour outlet, and sludge outlet is other to be provided with the flash-off steam entrance, and inside can arrange mechanical stirring or pump reflux circulation stirring;
Further, described hydrothermal reactor bottom is provided with the high-temperature steam entrance, and the top is provided with vapour outlet, and inside arranges mechanical stirrer;
Further, described flashing reactor top is provided with the flash-off steam outlet, and described flash-off steam outlet links to each other with the flash-off steam entrance of described pulp reactor.
Further, between described hydro-thermal reaction and the flashing reactor, be provided with the combination of automatic regulating valve or automatic regulating valve and manually-operated gate, in order to control flash distillation speed, guarantee that the hydrothermal reactor liquid level is constant.
Further, can directly connect the water extracter dehydration behind the described mud water cooler, also can directly connect anaerobic digestion equipment and carry out subsequent disposal.
The utility model is compared with traditional hydro-thermal drying method and sequence batch (hydro-thermal technique and is had the following advantages:
(1) equipment is more reliable.The utility model has replaced the primary sludge interchanger with pulp reactor, flashing reactor; Flash-off steam direct heating raw sludge do not have the problem of fouling, obstruction, and thermo-efficiency is far above partition-wall heat transfer.Than sequence batch (hydro-thermal technique, there is not tired operating mode in water heating apparatus, and the equipment design manufacture difficulty is low, and is with low cost and use reliable.
(2) equipment is more efficient.Former hydro-thermal technique needs only singly to criticize operation or order is criticized operation, belongs to batch mode of operation, and the parameter of the utility model by temperature, pressure, liquid level, flow and the chain control of pump, valve have realized that 24h moves continuously; By continuous operation, greatly reduced mud total residence time in system, shorten to about 0.5 hour by general 2~3 hours, water heating apparatus quantity still less, service efficiency is higher, floor space is more economized, investment reduces.
(3) the utility model is fit to process the raw sludge of greater concn, and is more energy-saving and cost-reducing.Former hydro-thermal technique is applicable to the raw sludge of water ratio 90%~95%, the utility model is fit to process the raw sludge of solid content 75%~90%, and the energy expenditure of unit raw sludge is suitable, but because of the raising of sludge concentration, and actual to adjust energy consumption be about 1/2 of former hydro-thermal process energy consumption substantially.
(4) heat transfer efficiency is high.The utility model hydrothermal reactor and pulp reactor all adopt countercurrent heat-transfer, and stir with agitator, and the equipment aspect ratio is large, and equipment employing efficient insulation layer, and these have all improved the heat transfer efficiency of steam and mud.
(5) flash distillation of solid-liquid mixed phase promotes broken wall.Relative gas phase flash distillation decrease temperature and pressure process, the flash distillation of solid-liquid mixed phase is played larger promoter action for mud inner cell broken wall, is conducive to follow-up mechanical dehydration operation and anaerobism operation.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further introduced, but not as a limitation of the invention.
As shown in Figure 1, municipal sludge continous way hydro-thermal-flash distillation plant, comprise: former mud surge bunker 1, pulp charging pump 2, pulp reactor 3, hydro-thermal charging pump 4, hydrothermal reactor 5, flash distillation variable valve 6, flashing reactor 7, dehydration charging pump 8, mud water cooler 9, water extracter 10, wherein:
Described former mud surge bunker 1, be used for storage as the mud of raw material, its mud entrance can connect sludge pump and input raw sludge, its sludge outlet links to each other with pulp reactor 3 by pipeline, with the pipeline that links to each other between the pulp reactor 3 pulp charging pump 2 is set at described former mud surge bunker 1, in order to described raw sludge is inputted described pulp reactor 3;
Described pulp reactor 3 is used for raw sludge is carried out preheating, pulp, and its mud entrance links to each other with former mud surge bunker 1 by pipeline, and its sludge outlet links to each other with hydrothermal reactor 5 by pipeline; Connecting pipeline between described pulp reactor 3 and hydrothermal reactor 5 arranges hydro-thermal charging pump 4, in order to the mud after the pulp is pumped into described hydrothermal reactor 5; At the other flash-off steam entrance that communicates with flash-off steam outlet on the described flashing reactor 7 that also is provided with of described pulp reactor 3 bottom sludge outlets, flash-off steam enters from the mud bottom, carries out mud preheating, pulp; In described pulp reactor 3 inside mechanical stirring or pump reflux circulation stirring can be set also, promote heat exchange, be beneficial to pulp; Be provided with vapour outlet at described pulp reactor 3 tops, in order to discharge the foreign gas of described pulp reactor 3 interior accumulations, and in more excellent embodiment, described vapour outlet can select controlled mode (as program-controlled valve is set) when as described in the force value that forms in the pulp reactor 3 open valve when surpassing the first threshold of setting and discharge foreign gas;
Described hydrothermal reactor 5 is used for raw sludge is further heated, so that it carries out hydro-thermal reaction, its mud entrance links to each other with pulp reactor 3 by pipeline, and its sludge outlet links to each other with flashing reactor 7 by pipeline; After hydro-thermal reaction was finished, described hydrothermal reactor 5 relied on the interior pressure difference of itself and described flashing reactor 7 to finish the mud course of conveying; At the other high-temperature steam entrance that is provided with of described hydrothermal reactor 5 bottom sludge outlets, high-temperature steam enters from the mud bottom; Be provided with mechanical stirrer in described hydrothermal reactor 5 inside, increase high-temperature steam and mud contact area, promote hydro-thermal reaction fully, thoroughly; Be provided with vapour outlet at described hydrothermal reactor 5 tops, be used for discharging the foreign gases such as CO2 that cause sludge creation owing to high temperature, and in more excellent embodiment, described vapour outlet can be selected controlled mode (as program-controlled valve is set), opens valve and discharge foreign gas when the force value that forms in the described hydrothermal reactor 5 surpasses the Second Threshold of setting; Connecting pipeline between described hydrothermal reactor 5 and flashing reactor 7 arranges the combination 6 of automatic regulating valve or automatic regulating valve and manually-operated gate, in order to control flash distillation speed, guarantees that the hydrothermal reactor liquid level is constant;
Described flashing reactor 7 is used for raw sludge is carried out flash distillation release, cooling, obtains simultaneously flash-off steam and is back in the described pulp reactor 3 raw sludge is carried out the preheating pulp; The mud entrance of described flashing reactor 7 links to each other with hydrothermal reactor 5 by pipeline, and its sludge outlet links to each other with mud water cooler 9 by pipeline; Be provided with the flash-off steam outlet at described flashing reactor 7 tops, be used for the flash-off steam that flash distillation produces is back to described pulp reactor 3;
Described mud water cooler 9, in order to mud is cooled off, the pipeline that links to each other between described flashing reactor 7 and mud water cooler 9 is provided with sludge pump, cool off in order to mud is pumped into described mud water cooler, carry out processed in order to connect 10 pairs of mud of water extracter with it, or connection Anaerobic Digestion equipment carries out subsequent disposal.
It should be noted that; the above only is preferred embodiment of the present utility model; be not so limit scope of patent protection of the present utility model, the utility model can also carry out to the structure of above-mentioned various component the improvement of material and structure, or adopts the technical equivalents thing to replace.Therefore the equivalent structure that all utilizations specification sheets of the present utility model and diagramatic content are done changes, or directly or indirectly apply to other correlative technology fields and all in like manner all be contained in the scope that the utility model contains.

Claims (8)

1. municipal sludge continous way hydro-thermal-flash distillation plant, comprise: former mud surge bunker, pulp reactor, hydrothermal reactor, flashing reactor, mud water cooler, and be connected on the water extracter that described mud is dewatered behind the described mud water cooler, it is characterized in that, described pulp reactor, hydrothermal reactor, flashing reactor are connected successively with the mud water cooler.
2. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 1 is characterized in that, described pulp reactor, hydrothermal reactor and flashing reactor all are provided with sludge outlet in bottom center, and upper side is provided with the mud entrance.
3. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 2 is characterized in that, described pulp reactor head is provided with vapour outlet, and sludge outlet is other to be provided with the flash-off steam entrance, and flash-off steam enters from described pulp reactor lower part.
4. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 3 is characterized in that, described pulp inside reactor can arrange mechanical stirring or pump reflux circulation stirring.
5. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 2 is characterized in that, described hydrothermal reactor bottom is provided with the high-temperature steam entrance; The top is provided with vapour outlet, and inside arranges mechanical stirrer.
6. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 2 is characterized in that, described flashing reactor top is provided with the flash-off steam outlet, and described flash-off steam outlet links to each other with the flash-off steam entrance of described pulp reactor.
7. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 2 is characterized in that, between described hydrothermal reactor and the flashing reactor, is provided with automatic regulating valve or automatic regulating valve and the manually family of power and influence's combination.
8. municipal sludge continous way hydro-thermal-flash distillation plant as claimed in claim 1 is characterized in that, can directly connect dehydration equipment or anaerobic digestion equipment behind the described mud water cooler.
CN 201220133792 2012-04-01 2012-04-01 Continuous type hydrothermal-flash evaporation device for municipal sludge Expired - Lifetime CN202688157U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107010809A (en) * 2017-05-27 2017-08-04 四川省科学城中心科技有限公司 A kind of multi-stage, efficient flash distillation sludge dewatering treatment system and method
CN107056013A (en) * 2017-05-24 2017-08-18 中国东方电气集团有限公司 A kind of device and method for handling sludge
CN107074601A (en) * 2014-10-31 2017-08-18 威立雅水务技术支持公司 Method and apparatus for pyrohydrolysis sludge
CN107202246A (en) * 2016-03-18 2017-09-26 北京健坤伟华新能源科技有限公司 A kind of external-compression type HTHP material dosing conveying device
CN107406288A (en) * 2015-03-26 2017-11-28 Scw系统公司 For processing the method and system of the slurry comprising organic component
CN109000150A (en) * 2018-09-05 2018-12-14 北京洁绿环境科技股份有限公司 A kind of continuous discharge system and method for pressure vessel pressurized fluid
CN109020120A (en) * 2018-08-31 2018-12-18 四川深蓝环保科技有限公司 A kind of sludge sand removing process and system
CN109020113A (en) * 2018-08-07 2018-12-18 四川深蓝环保科技有限公司 A kind of sludge continuous hydrothermal processing unit of multistage flash distillation
CN111644135A (en) * 2020-05-22 2020-09-11 东华大学 Organic hazardous waste heat catalysis high-efficiency reduction double-kettle process equipment

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107074601A (en) * 2014-10-31 2017-08-18 威立雅水务技术支持公司 Method and apparatus for pyrohydrolysis sludge
CN107406288A (en) * 2015-03-26 2017-11-28 Scw系统公司 For processing the method and system of the slurry comprising organic component
US12103876B2 (en) 2015-03-26 2024-10-01 Scw Systems B.V. Method of and system for processing a slurry containing organic components
CN107202246A (en) * 2016-03-18 2017-09-26 北京健坤伟华新能源科技有限公司 A kind of external-compression type HTHP material dosing conveying device
CN107202246B (en) * 2016-03-18 2019-12-13 四川深蓝环保科技有限公司 External pressure type high-temperature high-pressure material quantitative conveying device
CN107056013A (en) * 2017-05-24 2017-08-18 中国东方电气集团有限公司 A kind of device and method for handling sludge
CN107010809A (en) * 2017-05-27 2017-08-04 四川省科学城中心科技有限公司 A kind of multi-stage, efficient flash distillation sludge dewatering treatment system and method
CN109020113A (en) * 2018-08-07 2018-12-18 四川深蓝环保科技有限公司 A kind of sludge continuous hydrothermal processing unit of multistage flash distillation
CN109020120A (en) * 2018-08-31 2018-12-18 四川深蓝环保科技有限公司 A kind of sludge sand removing process and system
CN109020120B (en) * 2018-08-31 2021-06-15 四川深蓝环保科技有限公司 Sludge desanding process and system
CN109000150A (en) * 2018-09-05 2018-12-14 北京洁绿环境科技股份有限公司 A kind of continuous discharge system and method for pressure vessel pressurized fluid
CN111644135A (en) * 2020-05-22 2020-09-11 东华大学 Organic hazardous waste heat catalysis high-efficiency reduction double-kettle process equipment

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Effective date of registration: 20160902

Address after: 301, No. 101, building 17, Qilu cultural and creative base, No. 250014 Shun Feng Road, hi tech Zone, Shandong, Ji'nan

Patentee after: Qingdao Wei Xin Hua Energy Technology Co., Ltd.

Address before: 100084 room 825, Zhongyi energy saving building, College of environment, Tsinghua University, Haidian District, Beijing, 1, China

Patentee before: Beijing JIankun Weihua New Energy Science & Technology Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20130123

CX01 Expiry of patent term