CN103011546B - A kind of two-stage sludge mummification and energy-recuperation system and drying process thereof - Google Patents
A kind of two-stage sludge mummification and energy-recuperation system and drying process thereof Download PDFInfo
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- CN103011546B CN103011546B CN201210515606.XA CN201210515606A CN103011546B CN 103011546 B CN103011546 B CN 103011546B CN 201210515606 A CN201210515606 A CN 201210515606A CN 103011546 B CN103011546 B CN 103011546B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
Abstract
This case discloses a kind of two-stage sludge mummification and energy-recuperation system and drying process thereof, it includes mud locker room, it is characterized in that: the air vent of described mud locker room is connected with deodorizing reactor by a blower fan, the mud mouth of mud locker room is connected with the mud entrance point of desiccation machine by sludge pump, being provided with mud forming machine at the sludge outlet end of desiccation machine, the mud discharge outlet of mud forming machine is provided with belt-type drying machine.This system two-part mummification mode, moisture content is that the sludge drying of 70% 85% is to the Granular sludge of solid content 70% 90% the most at last, system heat transfer efficiency is high, load volume is little, and thermal loss is relatively low, does not substantially have dust, energy-recuperation system is energy-efficient, fractional energy savings reaches about 30%, and from the point of view of practical effect, mummification rate and fractional energy savings significantly improve.
Description
Technical field
The present invention relates to the technical field of sludge drying, specifically a kind of two-stage sludge mummification and energy-recuperation system and drying process thereof, particularly to its system attachment structure.
Background technology
Along with China's rapid development of economy, urbanization and the continuous quickening of town development paces, industry and sanitary sewage discharge capacity are increasing, thing followed sludge quantity (including the mud of drainage pipeline, pumping plant and sewage treatment plant) is increasing. and sludge of sewage treatment plant, as the side-product of sewage disposal, will result in serious secondary pollution if processed not in time.The main treatment technology of mud has landfill, compost, burning, building materials utilization etc. at present, and these process disposal technologies must be through this process of mummification.It is low that existing drying technique and equipment are primarily present dependence dewatered sludge back-mixing, heating system heat exchange efficiency, the shortcomings such as heat loss amount is relatively big, Dust Capacity is high, constraining the development of specific resistance to filtration technology, therefore exploitation Novel sewage sludge drying equipment has vital effect for solving the most serious sludge problem.Mud thin layer drying technique is a kind of efficient, energy-conservation, sludge drying technique of safety and environmental protection, a kind of two-stage sludge mummification of now research and development and energy-recuperation system, it is mainly used in the mud that mummification moisture content is 70% ~ 85%, makes the mud after mummification reach finally to process the water content requirement of disposal technology.
Summary of the invention
It is an object of the invention to provide one one kinds of two-stage sludge mummification and energy-recuperation system and drying process thereof, can be by the Granular sludge of sludge drying that moisture content is 70%-85% to solid content 70%-90%, and carry energy-recuperation system, efficient mummification, scientific energy saving can be realized.
To achieve these goals, the technical scheme is that a kind of two-stage sludge mummification and energy-recuperation system, it includes mud locker room, it is characterized in that: the air vent of described mud locker room is connected with deodorizing reactor by a blower fan, the mud mouth of mud locker room is connected with the mud entrance point of desiccation machine by sludge pump, being provided with mud forming machine at the sludge outlet end of desiccation machine, the mud discharge outlet of mud forming machine is provided with belt-type drying machine.
nullA kind of two-stage sludge mummification and the drying process of energy-recuperation system，It is characterized in that: described energy regenerating drying process is，Mud is poured onto and states in mud locker room by first mud car，This mud locker room is sealing state，And form negative pressure by a blower fan，Bled body enters into and carries out deodorization process in deodorizing reactor，Then the mud in mud locker room is pumped in the desiccation machine of first paragraph by sludge pump and carries out first paragraph drying and other treatment，This desiccation machine is dividing wall type drying equipment，Such as thin layer desiccation machine and disc type desiccation machine，Thermal medium provides thermal source by sludge drying machine for sludge drying，Sludge drying extrudes to entering into the most afterwards mud forming machine from desiccation machine afterbody after the solid content of 40%-50%，Mud after extruding is strip，Water inlet second segment mummification in belt-type drying machine is delivered to by conveyer，In first paragraph drying process，The bled steam that wet mud steam produces is pumped into cyclone dust extractor by No. two blower fans from wet mud evaporation waste gas outlet and carries out dedusting，Heat steam after dedusting enters in gas-to-gas heat exchanger as thermal source，Waste gas after cooling is 50 degree of-60 degree，This waste gas enters in desiccation machine from afterbody，Carrier gas as the steam that mud is evaporated，Belt-type drying machine internal gas flow direction is contrary with mud direction of advance，This air-flow is from the charging aperture of belt-type drying machine out，Under the effect of No. three blower fans, belt-type drying machine is internally formed negative pressure，The gas released enters into and carries out condensation removal steam in condenser，Gas after cooling enters in gas-to-gas heat exchanger as cooling medium，After entering heat exchange，This portion gas is heated up by reheater，Then the gas after heating enters in belt-type drying machine as thermal source，The semi-oriented mud of strip that mummification carries from first paragraph desiccation machine，Granular sludge after the further mummification of belt-type drying machine,The solid content of this Granular sludge is 70%-90%，Granular sludge after cooling enters into Storage Silo.
This case discloses a kind of two-stage sludge mummification and energy-recuperation system and drying process thereof, this system two-part mummification mode, moisture content is the sludge drying Granular sludge to solid content 70%-90% of 70%-85% the most at last, and system heat transfer efficiency is high, and load volume is little, thermal loss is relatively low, substantially not having dust, energy-recuperation system is energy-efficient, and fractional energy savings reaches about 30%, from the point of view of practical effect, mummification rate and fractional energy savings significantly improve.
Accompanying drawing explanation
Fig. 1 is two-stage sludge mummification of the present invention and energy-recuperation system structural representation.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
The invention discloses a kind of two-stage sludge mummification and energy-recuperation system, it includes mud locker room 1, it is different from prior art and is: the air vent of described mud locker room 1 is connected with deodorizing reactor 3 by a blower fan 2, the mud mouth of mud locker room 1 is connected with the mud entrance point of desiccation machine 5 by sludge pump 4, being provided with mud forming machine 6 at the sludge outlet end of desiccation machine 5, the mud discharge outlet of mud forming machine 6 is provided with belt-type drying machine 7.
In the specific implementation, described desiccation machine 5 is provided with wet mud evaporation waste outlet near mud entrance point, this wet mud evaporation waste outlet is connected with gas-to-gas heat exchanger 10 first entrance by cyclone dust extractor 8, being provided with No. two blower fans 9 at cyclone dust extractor 8, gas-to-gas heat exchanger 10 first outlet is connected at sludge outlet end with desiccation machine 5.
In the specific implementation, described belt-type drying machine 7 one end is connected with condenser 12 one end by No. three blower fans 11, the other end of condenser 12 is connected with the second entrance of gas-to-gas heat exchanger 10, and the second outlet of gas-to-gas heat exchanger 10 is connected with belt-type drying machine 7 other end by reheater 13.
In the specific implementation, recirculated water steam-return line is formed between described reheater 13 and boiler 14, aspirating pipeline 15 1 branch line in this water vapour loop is connected with the air inlet of desiccation machine 5 one end, and return line one branch line in this water vapour loop is connected with the gas outlet of desiccation machine 5 other end.
nullIn the specific implementation，A kind of two-stage sludge mummification and the energy regenerating drying process of energy-recuperation system，Described energy regenerating drying process is，Mud is poured onto and states in mud locker room 1 by first mud car，This mud locker room 1 is in sealing state，And form negative pressure by a blower fan 2，Bled body enters into and carries out deodorization process in deodorizing reactor 3，Then the mud in mud locker room 1 is pumped in the desiccation machine 5 of first paragraph by sludge pump 4 and carries out first paragraph drying and other treatment，This desiccation machine is dividing wall type drying equipment，Such as thin layer desiccation machine and disc type desiccation machine，Thermal medium provides thermal source by sludge drying machine for sludge drying，Sludge drying extrudes to entering into the most afterwards mud forming machine 6 from desiccation machine afterbody after the solid content of 40%-50%，Mud after extruding is strip，Water inlet second segment mummification in belt-type drying machine 7 is delivered to by conveyer，In first paragraph drying process，The bled steam that wet mud steam produces is pumped into cyclone dust extractor 8 by No. two blower fans 9 from wet mud evaporation waste gas outlet and carries out dedusting，Heat steam after dedusting enters in gas-to-gas heat exchanger 10 as thermal source，Waste gas after cooling is 50 degree of-60 degree，This waste gas enters in desiccation machine from afterbody，Carrier gas as the steam that mud is evaporated，Belt-type drying machine internal gas flow direction is contrary with mud direction of advance，This air-flow is from the charging aperture of belt-type drying machine out，Under the effect of No. three blower fans 11, belt-type drying machine is internally formed negative pressure，The gas released enters into and carries out condensation removal steam in condenser 12，Gas after cooling enters in gas-to-gas heat exchanger 10 as cooling medium，After entering heat exchange，This portion gas is heated up by reheater 13，Then the gas after heating enters in belt-type drying machine as thermal source，The semi-oriented mud of strip that mummification carries from first paragraph desiccation machine，Granular sludge after the further mummification of belt-type drying machine,The solid content of this Granular sludge is 70%-90%，Granular sludge after cooling enters into Storage Silo.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert that the present invention is embodied as being confined to these explanations above-mentioned.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (3)
- null1. a two-stage sludge mummification and energy-recuperation system，It includes mud locker room (1)，It is characterized in that: the air vent of described mud locker room (1) is connected with deodorizing reactor (3) by a blower fan (2)，The mud mouth of mud locker room (1) is connected with the mud entrance point of desiccation machine (5) by sludge pump (4)，Mud forming machine (6) it is provided with at the sludge outlet end of desiccation machine (5)，The mud discharge outlet of mud forming machine (6) is provided with belt-type drying machine (7)，Described desiccation machine (5) is provided with wet mud evaporation waste gas outlet near mud entrance point，This wet mud evaporation waste gas outlet is connected with gas-to-gas heat exchanger (10) first entrance by cyclone dust extractor (8)，Cyclone dust extractor (8) place is provided with No. two blower fans (9)，Gas-to-gas heat exchanger (10) first outlet is connected at sludge outlet end with desiccation machine (5)，Described belt-type drying machine (7) charging aperture is connected with condenser (12) one end by No. three blower fans (11)，Condenser (12) other end is connected with the second entrance of gas-to-gas heat exchanger (10)，Second outlet of gas-to-gas heat exchanger (10) is connected with belt-type drying machine (7) discharge end by reheater (13)，Belt-type drying machine internal gas flow direction is contrary with mud direction of advance.
- A kind of two-stage sludge mummification the most according to claim 1 and energy-recuperation system, it is characterized in that: between described reheater (13) and boiler (14), form recirculated water steam-return line, aspirating pipeline (15) one branch line in this water vapour loop is connected with the air inlet of desiccation machine (5) one end, and return line (16) branch line in this water vapour loop is connected with the gas outlet of desiccation machine (5) other end.
- null3. a two-stage sludge mummification and the energy regenerating drying process of energy-recuperation system，It is characterized in that: described energy regenerating drying process is，Mud is poured onto and states in mud locker room (1) by first mud car，This mud locker room (1) is in sealing state，And form negative pressure by a blower fan (2)，Bled body enters in deodorizing reactor (3) and carries out deodorization process，Then the mud in mud locker room (1) is pumped in the desiccation machine (5) of first paragraph by sludge pump (4) and carries out first paragraph drying and other treatment，This desiccation machine is dividing wall type drying equipment，Thermal medium provides thermal source by sludge drying machine for sludge drying，Sludge drying extrudes to entering into the most afterwards mud forming machine (6) from desiccation machine afterbody after the solid content of 40%-50%，Mud after extruding is strip，Water inlet second segment mummification in belt-type drying machine (7) is delivered to by conveyer，In first paragraph drying process，The bled steam that wet mud steam produces is pumped into cyclone dust extractor (8) by No. two blower fans (9) from wet mud evaporation waste gas outlet and carries out dedusting，Heat steam after dedusting enters in gas-to-gas heat exchanger (10) as thermal source，Waste gas after cooling is 50 degree of-60 degree，This waste gas enters in desiccation machine from afterbody，Carrier gas as the steam that mud is evaporated，Belt-type drying machine internal gas flow direction is contrary with mud direction of advance，This air-flow is from the charging aperture of belt-type drying machine out，Under the effect of No. three blower fans (11), belt-type drying machine is internally formed negative pressure，The gas released enters into and carries out condensation removal steam in condenser (12)，Gas after cooling enters in gas-to-gas heat exchanger (10) as cooling medium，After entering heat exchange，This portion gas is heated up by reheater (13)，Then the gas after heating enters in belt-type drying machine as thermal source，The semi-oriented mud of strip that mummification carries from first paragraph desiccation machine，Granular sludge after the further mummification of belt-type drying machine,The solid content of this Granular sludge is 70%-90%，Granular sludge after cooling enters into Storage Silo.
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Families Citing this family (14)
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| CN104108595A (en) * | 2013-04-16 | 2014-10-22 | 苏州工业园区中法环境技术有限公司 | Sludge conveying device |
| CN104671633A (en) * | 2015-03-16 | 2015-06-03 | 天华化工机械及自动化研究设计院有限公司 | Steam condensate preheating and steam drying two-stage energy-saving sludge drying method |
| CN104743765B (en) * | 2015-04-09 | 2016-08-17 | 北京建筑材料科学研究总院有限公司 | A kind of two-part drying and other treatment sludge method |
| CN105776806B (en) * | 2016-04-20 | 2019-03-29 | 中冶南方工程技术有限公司 | Sludge drying tower and sludge drying method |
| CN107915389B (en) * | 2017-10-27 | 2020-06-26 | 北京中电联节能技术有限公司 | Two-stage integrated sludge indirect heat drying method and drying system |
| CN108117240A (en) * | 2018-01-31 | 2018-06-05 | 光大环保技术装备（常州）有限公司 | A kind of sludge treating system and processing method |
| CN108439763A (en) * | 2018-05-28 | 2018-08-24 | 北京艺高人和工程设备有限公司 | A kind of two-period form thin layer sludge drying system |
| CN110002715B (en) * | 2019-03-22 | 2023-11-17 | 浙江工业大学 | Two-stage sludge drying equipment system |
| CN110526539A (en) * | 2019-09-03 | 2019-12-03 | 马鞍山中创环保科技有限公司 | A kind of sludge desiccation processing equipment and drying method for treating |
| CN110902998A (en) * | 2019-12-13 | 2020-03-24 | 天津五洲同创空调制冷设备有限公司 | Wet sludge drying process |
| CN111018302A (en) * | 2019-12-17 | 2020-04-17 | 上海巴安水务股份有限公司 | Process flow and method for drying sludge by two-stage method |
| CN113292215A (en) * | 2021-06-25 | 2021-08-24 | 上海城市水资源开发利用国家工程中心有限公司 | Residual sludge treatment device and method combining microbubble ozonation and thin-layer drying |
| CN113648728B (en) * | 2021-07-22 | 2022-07-15 | 中城院(北京)环境科技有限公司 | Sludge drying tail gas purification treatment system and method |
| CN117534288B (en) * | 2024-01-08 | 2024-04-09 | 湖南清源华建环境科技有限公司 | Superheated steam two-stage drying system |
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