CN103011546A - Two-stage sludge drying and energy recovering system and drying process thereof - Google Patents
Two-stage sludge drying and energy recovering system and drying process thereof Download PDFInfo
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- CN103011546A CN103011546A CN201210515606XA CN201210515606A CN103011546A CN 103011546 A CN103011546 A CN 103011546A CN 201210515606X A CN201210515606X A CN 201210515606XA CN 201210515606 A CN201210515606 A CN 201210515606A CN 103011546 A CN103011546 A CN 103011546A
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- drying
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- 238000001035 drying Methods 0.000 title claims abstract description 69
- 239000010802 sludge Substances 0.000 title claims abstract description 60
- 239000000428 dust Substances 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 239000012159 carrier gas Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002912 waste gas Substances 0.000 claims description 10
- 230000001877 deodorizing effect Effects 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 3
- 238000004332 deodorization Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- -1 burning Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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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
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a two-stage sludge drying and energy recovering system and a drying process thereof. The two-stage sludge drying and energy recovering system comprises a sludge storage chamber. The two-stage sludge drying and energy recovering system is characterized in that an exhaust port of the sludge storage chamber is connected with a deodorization reactor through a first fan; a sludge outlet of the sludge storage chamber is connected with a sludge inlet end of a drier through a sludge pump; a sludge forming machine is arranged at the sludge outlet end of the drier; and a belt drier is arranged at the sludge discharge hole of the sludge forming machine. The system adopts a two-stage drying manner; and the sludge of which the moisture content is 70-85% is finally dried into granular sludge of which the solid content is 70-90%. The system is high in heat transfer efficiency, small in carrier gas quantity, and low in heat loss, and does not generate dust at all; the energy recovering system is efficient and energy-saving; the energy saving rate achieves about 30%, and the drying rate and the energy-saving rate are obviously improved from the aspect of actual use effect.
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 its system's syndeton.
Background technology
Along with China's rapid development of economy, the continuous quickening of urbanization and town development paces, industry and sanitary sewage quantity discharged are increasing, consequent sludge quantity (mud that comprises drainage pipeline, pumping plant and sewage work) is increasing. and sludge of sewage treatment plant is as the byproduct of sewage disposal, if untimely processing will cause serious secondary pollution.The main treatment technology of mud has landfill, compost, burning, building materials utilization etc. at present, and these processing disposal technologies must pass through this process of mummification.The main Existence dependency dewatered sludge of existing drying technique and equipment back-mixing, heating system heat exchange efficiency are low, the shortcomings such as the heat loss amount is large, Dust Capacity is high, restricted the development of ﹠ Mud technology, so the development of new sludge drying device there is vital effect for solving current day by day serious sludge problem.Mud thin layer drying technique is a kind of sludge drying technique of efficient, energy-conservation, safety and environmental protection, now research and develop a kind of two-stage sludge mummification and energy-recuperation system, be mainly used in the mummification water ratio and be 70% ~ 85% mud, make mud after the mummification reach the water content requirement of final processing disposal technology.
Summary of the invention
The object of the present invention is to provide one one kinds of two-stage sludge mummification and energy-recuperation system and drying process thereof, can be that the sludge drying of 70%-85% is to the particulate state mud of solid content 70%-90% with water ratio, and carry energy-recuperation system, and can realize efficient mummification, science is energy-conservation.
To achieve these goals, technical scheme of the present invention is: a kind of two-stage sludge mummification and energy-recuperation system, it comprises the mud locker room, it is characterized in that: the venting port 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 end of desiccation machine by sludge pump, the sludge outlet end place of desiccation machine is provided with the mud forming machine, and the mud discharge port place of mud forming machine is provided with the belt-type drying machine.
The drying process of a kind of two-stage sludge mummification and energy-recuperation system, it is characterized in that: described energy recovery drying process is, at first the mud car is poured onto mud and states in the mud locker room, this mud locker room is sealed state, and by a blower fan formation negative pressure, the body of bleeding enters into deodorizing reactor and carries out the deodorizing processing, then the mud in the mud locker room is pumped into by sludge pump in the desiccation machine of first paragraph and carries out the first paragraph drying and other treatment, this desiccation machine is the 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 out enters into afterwards the mud forming machine from the desiccation machine afterbody behind the solid content of 40%-50% and pushes, mud after the extruding is strip, deliver to water inlet second segment mummification in the belt-type drying machine by transfer roller, in the first paragraph drying process, the exhaust steam that wet mud steam produces is pumped into by No. two blower fans from wet mud evaporation waste gas outlet and carries out dedusting the tornado dust collector, heat steam after the dedusting enters into gas-to-gas heat exchanger as thermal source, cooled waste gas is 50 degree-60 degree, this waste gas enters in the desiccation machine from afterbody, the carrier gas of the steam that is evaporated as mud, belt-type drying machine internal gas flow direction is opposite with the mud working direction, this air-flow from the opening for feed of belt-type drying machine out, the inner negative pressure that forms of belt-type drying machine under the effect of No. three blower fans, the gas of releasing enters into condenser and carries out condensation removal water vapour, cooled gas enters into gas-to-gas heat exchanger as heat-eliminating medium, after advancing heat exchange, this portion gas heats up by reheater, then the gas after the heating enters into the belt-type drying machine as thermal source, the semi-oriented mud of strip of coming is carried in mummification from the first paragraph desiccation machine, through the particulate state mud after the further mummification of belt-type drying machine, the solid content of this particulate state mud is 70%-90%, and the particulate state mud after the 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's two-part mummification mode, the most at last water ratio be the sludge drying of 70%-85% to the particulate state mud of solid content 70%-90%, the system heat transfer efficiency is high, load volume is little, calorific loss is lower, substantially do not have dust, energy-recuperation system is energy-efficient, and fractional energy savings reaches about 30%, from practical effect, mummification rate and fractional energy savings significantly improve.
Description of drawings
Fig. 1 is two-stage sludge mummification of the present invention and energy-recuperation system structural representation.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The invention discloses a kind of two-stage sludge mummification and energy-recuperation system, it comprises mud locker room 1, it is different from prior art and is: the venting port 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 end of desiccation machine 5 by sludge pump 4, the sludge outlet end place of desiccation machine 5 is provided with mud forming machine 6, and the mud discharge port place of mud forming machine 6 is provided with belt-type drying machine 7.
In the specific implementation, described desiccation machine 5 is provided with the discarded outlet of wet mud evaporation near the mud entrance end, should the discarded outlet of wet mud evaporation be connected with gas-to-gas heat exchanger 10 first entrances by tornado dust collector 8, tornado dust collector 8 places are provided with blower fan 9 No. two, and gas-to-gas heat exchanger 10 first outlets are connected near sludge outlet end place with desiccation machine 5.
In the specific implementation, described belt-type drying machine 7 one ends are connected with condenser 12 1 ends 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 the other ends by reheater 13.In the specific implementation, form the recirculated water steam-return line between described reheater 13 and the boiler 14, aspirating pipeline 15 1 branch lines in this water vapor loop are connected with the inlet mouth of desiccation machine 5 one ends, and return line one branch line in this water vapor loop is connected with the air outlet of desiccation machine 5 the other ends.
In the specific implementation, the energy recovery drying process of a kind of two-stage sludge mummification and energy-recuperation system, described energy recovery drying process is, at first the mud car is poured onto mud and states in the mud locker room 1, this mud locker room 1 is sealed state, and by blower fan 2 formation negative pressure, the body of bleeding enters into deodorizing reactor 3 and carries out the deodorizing processing, then the mud in the mud locker room 1 is pumped into by sludge pump 4 in the desiccation machine 5 of first paragraph and carries out the first paragraph drying and other treatment, this desiccation machine is the 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 out enters into afterwards mud forming machine 6 from the desiccation machine afterbody behind the solid content of 40%-50% and pushes, mud after the extruding is strip, deliver to water inlet second segment mummification in the belt-type drying machine 7 by transfer roller, in the first paragraph drying process, the exhaust steam that wet mud steam produces is pumped into by No. two blower fans 9 from wet mud evaporation waste gas outlet and carries out dedusting the tornado dust collector 8, heat steam after the dedusting enters into gas-to-gas heat exchanger 10 as thermal source, cooled waste gas is 50 degree-60 degree, this waste gas enters in the desiccation machine from afterbody, the carrier gas of the steam that is evaporated as mud, belt-type drying machine internal gas flow direction is opposite with the mud working direction, this air-flow from the opening for feed of belt-type drying machine out, the inner negative pressure that forms of belt-type drying machine under the effect of No. three blower fans 11, the gas of releasing enters into condenser 12 and carries out condensation removal water vapour, cooled gas enters into gas-to-gas heat exchanger 10 as heat-eliminating medium, after advancing heat exchange, this portion gas heats up by reheater 13, then the gas after the heating enters into the belt-type drying machine as thermal source, the semi-oriented mud of strip of coming is carried in mummification from the first paragraph desiccation machine, through the particulate state mud after the further mummification of belt-type drying machine, the solid content of this particulate state mud is 70%-90%, and the particulate state mud after the cooling enters into Storage Silo.
Above content is the further description of the present invention being done in conjunction with concrete preferred implementation, can not assert that implementation of the present invention is confined to above-mentioned these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. a two-stage sludge mummification and energy-recuperation system, it comprises mud locker room (1), it is characterized in that: the venting port 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 end of desiccation machine (5) by sludge pump (4), the sludge outlet end place of desiccation machine (5) is provided with mud forming machine (6), and the mud discharge port place of mud forming machine (6) is provided with belt-type drying machine (7).
2. a kind of two-stage sludge mummification according to claim 1 and energy-recuperation system, it is characterized in that: described desiccation machine (5) is provided with wet mud evaporation waste gas outlet near the mud entrance end, should the discarded outlet of wet mud evaporation be connected with gas-to-gas heat exchanger (10) first entrances by tornado dust collector (8), tornado dust collector (8) locate to be provided with No. two blower fans (9), and gas-to-gas heat exchanger (10) first outlets are connected near sludge outlet end place with desiccation machine (5).
3. a kind of two-stage sludge mummification according to claim 1 and energy-recuperation system, it is characterized in that: described belt-type drying machine (7) opening for feed is connected with condenser (12) one ends by No. three blower fans (11), condenser (12) the other end is connected with the second entrance of gas-to-gas heat exchanger (10), the second outlet of gas-to-gas heat exchanger (10) is connected with belt-type drying machine (7) discharge end by reheater (13), and belt-type drying machine internal gas flow direction is opposite with the mud working direction.
4. a kind of two-stage sludge mummification according to claim 3 and energy-recuperation system, it is characterized in that: form the recirculated water steam-return line between described reheater (13) and the boiler (14), aspirating pipeline (15) one branch lines in this water vapor loop are connected with the inlet mouth of desiccation machine (5) one ends, and return line (16) one branch lines in this water vapor loop are connected with the air outlet of desiccation machine (5) the other end.
5. the energy recovery drying process of a two-stage sludge mummification and energy-recuperation system, it is characterized in that: described energy recovery drying process is, at first the mud car is poured onto mud and states in the mud locker room (1), this mud locker room (1) is sealed state, and by a blower fan (2) formation negative pressure, the body of bleeding enters into deodorizing reactor (3) and carries out the deodorizing processing, then the mud in mud locker room (1) is pumped into by sludge pump (4) in the desiccation machine (5) of first paragraph and carries out the first paragraph drying and other treatment, this desiccation machine is the 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 out enters into afterwards mud forming machine (6) from the desiccation machine afterbody behind the solid content of 40%-50% and pushes, mud after the extruding is strip, deliver to water inlet second segment mummification in the belt-type drying machine (7) by transfer roller, in the first paragraph drying process, the exhaust steam that wet mud steam produces is pumped into the tornado dust collector (8) by No. two blower fans (9) from wet mud evaporation waste gas outlet and carries out dedusting, heat steam after the dedusting enters into gas-to-gas heat exchanger (10) as thermal source, cooled waste gas is 50 degree-60 degree, this waste gas enters in the desiccation machine from afterbody, the carrier gas of the steam that is evaporated as mud, belt-type drying machine internal gas flow direction is opposite with the mud working direction, this air-flow from the opening for feed of belt-type drying machine out, the inner negative pressure that forms of belt-type drying machine under the effect of No. three blower fans (11), the gas of releasing enters into condenser (12) and carries out condensation removal water vapour, cooled gas enters into gas-to-gas heat exchanger (10) as heat-eliminating medium, after advancing heat exchange, this portion gas heats up by reheater (13), then the gas after the heating enters into the belt-type drying machine as thermal source, the semi-oriented mud of strip of coming is carried in mummification from the first paragraph desiccation machine, through the particulate state mud after the further mummification of belt-type drying machine, the solid content of this particulate state mud is 70%-90%, and the particulate state mud after the cooling enters into Storage Silo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210515606.XA CN103011546B (en) | 2012-12-05 | 2012-12-05 | A kind of two-stage sludge mummification and energy-recuperation system and drying process thereof |
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| CN201210515606.XA CN103011546B (en) | 2012-12-05 | 2012-12-05 | A kind of two-stage sludge mummification and energy-recuperation system and drying process thereof |
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| CN103011546A true CN103011546A (en) | 2013-04-03 |
| CN103011546B CN103011546B (en) | 2016-12-21 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104743765A (en) * | 2015-04-09 | 2015-07-01 | 北京建筑材料科学研究总院有限公司 | Two-stage sludge drying treatment method |
| CN105776806A (en) * | 2016-04-20 | 2016-07-20 | 中冶南方工程技术有限公司 | Sludge drying tower and sludge drying method |
| CN107915389A (en) * | 2017-10-27 | 2018-04-17 | 北京中电联节能技术有限公司 | The indirect heat drying method of two-part Integral sludge and anhydration 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 |
| CN110002715A (en) * | 2019-03-22 | 2019-07-12 | 浙江工业大学 | A kind of 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 |
| CN113648728A (en) * | 2021-07-22 | 2021-11-16 | 中城院(北京)环境科技有限公司 | Sludge drying tail gas purification treatment system and method |
| WO2022267282A1 (en) * | 2021-06-25 | 2022-12-29 | 上海城市水资源开发利用国家工程中心有限公司 | Residual sludge treatment equipment and method combining microbubble ozonation and thin-layer drying |
| CN117534288A (en) * | 2024-01-08 | 2024-02-09 | 湖南清源华建环境科技有限公司 | Superheated steam two-stage drying system |
| CN117623582A (en) * | 2024-01-25 | 2024-03-01 | 湖南清源华建环境科技有限公司 | Superheated steam drying heat recovery sludge back mixing device, system and method |
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| CN102001809A (en) * | 2010-12-07 | 2011-04-06 | 北京机电院高技术股份有限公司 | Belt-type drying complete processing device and method for sludge |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104743765A (en) * | 2015-04-09 | 2015-07-01 | 北京建筑材料科学研究总院有限公司 | Two-stage sludge drying treatment method |
| CN105776806A (en) * | 2016-04-20 | 2016-07-20 | 中冶南方工程技术有限公司 | Sludge drying tower and sludge drying 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 |
| CN107915389A (en) * | 2017-10-27 | 2018-04-17 | 北京中电联节能技术有限公司 | The indirect heat drying method of two-part Integral sludge and anhydration 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 |
| CN110002715A (en) * | 2019-03-22 | 2019-07-12 | 浙江工业大学 | A kind of 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 |
| WO2022267282A1 (en) * | 2021-06-25 | 2022-12-29 | 上海城市水资源开发利用国家工程中心有限公司 | Residual sludge treatment equipment and method combining microbubble ozonation and thin-layer drying |
| CN113648728A (en) * | 2021-07-22 | 2021-11-16 | 中城院(北京)环境科技有限公司 | Sludge drying tail gas purification treatment system and method |
| 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 |
| CN117534288A (en) * | 2024-01-08 | 2024-02-09 | 湖南清源华建环境科技有限公司 | Superheated steam two-stage drying system |
| 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 |
| CN117623582A (en) * | 2024-01-25 | 2024-03-01 | 湖南清源华建环境科技有限公司 | Superheated steam drying heat recovery sludge back mixing device, system and method |
| CN117623582B (en) * | 2024-01-25 | 2024-04-26 | 湖南清源华建环境科技有限公司 | Superheated steam drying heat recovery sludge back mixing device, system and method |
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| CN103011546B (en) | 2016-12-21 |
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