CN102351396A - Sludge drying equipment using waste heat of landfill gas power generation - Google Patents
Sludge drying equipment using waste heat of landfill gas power generation Download PDFInfo
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- CN102351396A CN102351396A CN2011101631977A CN201110163197A CN102351396A CN 102351396 A CN102351396 A CN 102351396A CN 2011101631977 A CN2011101631977 A CN 2011101631977A CN 201110163197 A CN201110163197 A CN 201110163197A CN 102351396 A CN102351396 A CN 102351396A
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- mummification storehouse
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- stirring
- mummification
- storehouse
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Processing Of Solid Wastes (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides sludge drying equipment using waste heat of landfill gas power generation, which belongs to environmental protection equipment. The equipment employs waste heat of condensed water of a landfill gas power generator assembly, flue gas, waste water and the like to heat and dry sludge entering into the equipment with a hollow stirrer in the sludge drying equipment, and can recycle condensed water of the power generator assembly and reduce the temperature of flue gas and waste water to be discharged; the outer walls of a stirring drying cabin and a spindle are provided with vacuum heat pipes, and a conveying drying cabin is also provided with vacuum heat pipes, which enables a low grade heat source in the stirring drying cabin to be recycled again and to be used for redrying sludge in the conveying drying cabin, thereby realizing reutilization of the waste heat of landfill gas power generation. The sludge drying equipment provided in the invention has the advantages of a reasonable structure, a high waste heat utilization rate, a good sludge drying effect, strong capability of continuous working, etc.
Description
Affiliated field
A kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment that the present invention relates to belongs to the environmental protection equipment class.
Background technology
Along with the municipal sewage treatment Facilities Construction progressively raise speed with the sewage centralized treatment rate improve the sharp increase of sludge of sewage treatment plants generation day by day.According to relevant prediction, China's municipal effluent amount also has in next two decades and increases substantially, and quantity of wastewater effluent will reach 440 * 10 in 2010
8m
3/ d; The year two thousand twenty quantity of wastewater effluent reaches 536 * 10
8m
3/ d; Sludge quantity accounts for 0.3%～0.5% (volume) of sewage quantity usually or is about 1%～2% (quality) of sewage load.And if sewage is carried out advanced treatment again, sludge quantity also can increase by 0.5～1 times.At present wastewater treatment in China amount and processing rate not high (4.5%), and annual about 9,000,000 t of mud that discharge in municipal sewage plant, but also with the speed increment in every year about 10%.
A large amount of undressed mud is stacked arbitrarily and discharging has caused new pollution to environment, and its treatment and disposal expense is suitable with the sewage disposal expense usually.Thereby how that output is huge, the mud of complicated component after the science processing, makes its innoxious, resource utilization, and having become China and even whole world environment circle is one of focus of paying close attention to deeply.The traditional sludge treatment of China disposes that initial cost is big, load is low, security requirement is high, problems such as the operational management difficulty is big, service experience shortage, so cause the idleness of equipment, waste is very big.There is great quantity of small sewage work in China, and its mud overwhelming majority fails properly to be disposed, and sludge disposal has become sewage work's design, necessary top-priority important step in service.Sludge treatment is not only China with disposal and is the technological challenge that the world faces.
The biogas production device has appearred in China in about 20～thirties of last century; In recent decades; The biogas fermentation technology has been widely used in to be handled the various organic wastes among agricultural, industry and the human lives and produces biogas, for human being's production and life provide abundant renewable energy source.To the end of the year 2005, built in China becomes all kinds of big-and-middle-sized biogas engineerings 3764 places, and total pond holds 1,720,000 m
3, year 1.2 hundred million tons of wastes of processing are produced biogas 3.4 hundred million m per year
3, utilize marsh gas power generation 4,000 ten thousand kwh, air feed 1,380,000 families.The biogas engineering operation quantity of wherein handling agricultural wastes is 3556 places, and total pond holds 1,000,000 m
3, 8710 tons of offal treatment amounts are produced biogas 2.3 hundred million m per year
3, nearly 1,320,000 families of air feed number of users.
There is the waste heat of multiple grade in China's marsh gas power generation, and each recycling mode and equipment shortcoming very also.Three kinds of the UTILIZATION OF VESIDUAL HEAT IN of engine exhaust, the 1. waste heat of engine exhaust → produce steam → hot digestion device through waste heat boiler; 2. the waste heat of engine exhaust → produce hot water → hot digestion device through interchanger; 3. the waste heat of engine exhaust → through waste gas absorption cold and hot water water-heater → be used for air-conditioning system; UTILIZATION OF VESIDUAL HEAT IN in the engine cooling water, waste heat in the engine cooling water → produce hot water with the hot digestion device through interchanger.
Yet in the design of numerous UTILIZATION OF VESIDUAL HEAT IN, the recovery of thermal source mainly utilizes generates electricity with heating steam again or adds thermal water source or gas heating, and UTILIZATION OF VESIDUAL HEAT IN efficient is not high, and Application Areas is extremely limited to, and it is made slow progress in the utilization of low-grade heat source.Severe situation in conjunction with the sewage sludge harmlessness processing; The thermal transition that development adapts to various grades utilizes equipment; With garbage loading embeading marsh gas power generation waste heat high efficiente callback dewatered sludge, promote the quick drying and other treatment of mud, the waste heat recovery dewatered sludge is one of important channel of sewage sludge harmlessness processing.
Summary of the invention
To the problems referred to above, the object of the present invention is to provide a kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment, adopt vacuum heat-pipe to realize the low-grade heat source recycling, and mud is implemented the secondary mummification, improve UTILIZATION OF VESIDUAL HEAT IN efficient.To achieve these goals, its technical solution is:
A kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment comprises generator system.Described dewatered sludge equipment is by stirring mummification storehouse 2, conveying mummification storehouse 7, motor 1, hollow agitator 4 and carrying unit 8 to form; Carry 7 sealings of mummification storehouse to be connected the below of stirring mummification storehouse 2; And the outlet of stirring mummification storehouse 2 is positioned at carries 7 inside, mummification storehouse; Mud is carried unit 8 to be arranged on and is carried 7 inside, mummification storehouse; Mud carries unit 8 to be made up of upper conveyor belt and lower conveyor belt; Upper conveyor belt is between the outlet in outlet of stirring mummification storehouse 2 and conveying mummification storehouse 7; Lower conveyor belt is below the outlet of stirring mummification storehouse 2 and between above the outlet in conveying mummification storehouse 7; Hollow agitator 5 is made up of quill shaft and hollow propeller blade and is run through to be arranged on and stirs 2 inside, mummification storehouse; Offer helicla flute on the quill shaft; The propeller blade correspondence of hollow is fixedly connected on the helicla flute; One end of hollow agitator 5 by shaft coupling be fixed on support 7 on motor 1 the axle be connected; The inwall that stirs mummification storehouse 2 is provided with the spindle 3 that the propeller blade profile with hollow is complementary; Be set with equally distributed vacuum heat-pipe on the outer wall of spindle 3; Be set with equally distributed vacuum heat-pipe on the outer wall in stirring mummification storehouse; Upper conveyor belt and lower conveyor belt inside all are set with equally distributed vacuum heat-pipe; The delivery port of the condenser coil of said generating set, exhanst gas outlet and wastewater outlet are connected to the import of hollow agitator 6 respectively through pipeline through valve; The outlet of hollow agitator 6 connects condensed water draining valve, flue gas exhaust valve and waste water draining valve respectively by pipeline; The top of stirring mummification storehouse 2 is provided with gas vent and is provided with gas vent with the sidewall of carrying mummification storehouse 7; Gas vent on stirring mummification storehouse 2 and carrying mummification storehouse 7 is connected the gas feed of air exhauster 9 by pipeline; The gas vent of air exhauster 9 connects condenser 10 by pipeline; The liquid outlet of condenser 10 connects the condensed water collection container, and the gas vent of condenser 10 connects gas cleaning plant.Described generating set is a garbage loading embeading marsh gas power generation unit.
The gas outlet that stirs mummification storehouse 2 is provided with sensor groups 5, and sensor groups 5 is made up of temperature sensor, humidity sensor, pressure transmitter and flow sensor.
Owing to adopted above technical scheme; A kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment of the present invention can heat drying and other treatment through the hollow agitator to the mud that gets into this equipment with waste heats such as garbage loading embeading biogas generator unit water of condensation, flue gas and waste water respectively as required; Also the water of condensation of generating set recycle be can be carried out, flue gas and discharge of wastewater temperature reduced; Vacuum heat-pipe is set on the outer wall of stirring mummification storehouse outer wall and spindle and in carrying the mummification storehouse, vacuum heat-pipe is set; With stir that low-grade heat source in the mummification storehouse is recycled once more and in carrying the mummification storehouse dewatered sludge once more, realized second stage employ to garbage loading embeading marsh gas power generation waste heat.Simultaneously, adopt the hollow propeller blade and in stirring the mummification storehouse, be provided be fixedly installed on the hollow stir shaft on the spindle that matches of hollow propeller blade profile, increased the sludge drying evaporation area.Be compressed into thin layer through being arranged on the mud of carrying the inner conveying unit in mummification storehouse will stir after the mummification in mummification storehouse; What increased mud is carrying the inner mummification evaporation area in mummification storehouse; Shortened the whole drying time of mud; The mud after the mummification carries out mummification once more in the mummification storehouse to stirring through being arranged on the inner vacuum heat-pipe of upper conveyor belt and lower conveyor belt again, has quickened the mummification speed of mud.That garbage loading embeading marsh gas power generation residual heat to dry sludge equipment of the present invention has is rational in infrastructure, UTILIZATION OF VESIDUAL HEAT IN efficient high, effective, the advantages such as ability is strong of working continuously of sludge drying.
Description of drawings
Accompanying drawing is the structural representation of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment of the present invention.
Embodiment
A kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment comprises generator system.Described dewatered sludge equipment is by stirring mummification storehouse 2; Carry mummification storehouse 7; Electric motor 1; Hollow agitator 4 is formed with conveying unit 8; Carry 7 sealings of mummification storehouse to be connected the below of stirring mummification storehouse 2; And the outlet of stirring mummification storehouse 2 is positioned at carries 7 inside, mummification storehouse; Mud is carried unit 8 to be arranged on and is carried 7 inside, mummification storehouse; Mud carries unit 8 to be made up of upper conveyor belt and lower conveyor belt; Upper conveyor belt is between the outlet in outlet of stirring mummification storehouse 2 and conveying mummification storehouse 7; Lower conveyor belt goes out device external below the outlet of stirring mummification storehouse 2 and between above the outlet in conveying mummification storehouse 7 with the mud discharging after the mummification.The mud import is arranged on the top of stirring mummification storehouse 2, near hollow agitator 5 imports one end.
Hollow agitator 5 is made up of quill shaft and hollow propeller blade and is run through to be arranged on and stirs 2 inside, mummification storehouse, offers spiral slot on the quill shaft, and the propeller blade correspondence of hollow is fixedly connected on the spiral slot.Heat exchange area between that the agitator 4 of hollow and the propeller blade that is fixedly installed on the hollow on the stir shaft 4 are used to increase thermal medium unit water of condensation, flue gas and waste water and the mud.
One end of hollow agitator 5 through shaft coupling be fixed on support 7 on electric motor 1 the axle be connected; The inwall that stirs mummification storehouse 2 is provided with the spindle 3 that the propeller blade profile with hollow is complementary; Spindle 3 is transmission spaces of compression mud; Reduce the thickness of sludge blanket; Shorten the heat conduction distance of residual heat to dry sludge, and then increased the heating-surface area and the evaporation area of dewatered sludge relatively.The heat conduction media is used to absorb garbage loading embeading marsh gas power generation waste heat energy, and this energy is transmitted and be converted into the energy of sludge drying.
Be set with equally distributed vacuum heat-pipe on the outer wall of spindle 3, be set with equally distributed vacuum heat-pipe on the outer wall in stirring mummification storehouse, upper conveyor belt and lower conveyor belt inside all are set with equally distributed vacuum heat-pipe.Filling has superpower heat active and the multiple inorganic active metal of heat sensitivity and the heat conduction media that compound is formed thereof in the vacuum heat-pipe.Carry unit 8 to be used for mud is compressed into thin layer; Heat conduction distance when shortening dewatered sludge; And the mud after the mummification is transferred out to carrying 7 outlets of mummification storehouse; Vacuum heat-pipe is used for absorbing the waste heat energy that stirs mummification storehouse 2 mud granules and evaporation steam, hot gas, so in carrying mummification storehouse 7 dewatered sludge once more.
The water outlet of the condensing coil of said generating set, exhanst gas outlet and wastewater outlet arrive the import of hollow agitator 6 respectively through pipe connection through valve; The outlet of hollow agitator 6 connects water of condensation water discharge valve, flue gas exhaust valve and waste water water discharge valve respectively by pipeline; When the hot water in the condensing coil that adopts group of motors; Directly open correspondence and be arranged on water of condensation water intaking valve and water discharge valve on the dewatered sludge equipment; The generating set external heat source is used for sludge drying; And reduce the temperature of water of condensation fast, realize the water of condensation cycle applications; When the thermal source that adopts flue gas as dewatered sludge is; Then corresponding flue gas intake valve and the vent valve that is arranged on the dewatered sludge equipment of opening; The thermal source that flue gas is carried is used for dewatered sludge, reduces flue-gas temperature and heat, again flue gas is released into smoke eliminator through vent valve; And when adopting generating set waste water, then corresponding influent waste water valve and the water discharge valve that is arranged on the dewatered sludge equipment of opening is disposed to the UTILIZATION OF VESIDUAL HEAT IN of waste water and after reducing the device exhaust temperature and specifies the discharge of wastewater place.Described generating set can adopt garbage loading embeading marsh gas power generation unit or thermal power generation unit.
The top of stirring mummification storehouse 2 is provided with pneumatic outlet and is provided with pneumatic outlet with the sidewall of carrying mummification storehouse 7; Stir mummification storehouse 2 and the gas feed of pneumatic outlet through pipe connection vacuum fan 9 of carrying on the mummification storehouse 7, vacuum fan 9 is used for stirring mummification storehouse 2 and in time extracts out with steam and the gas of carrying mummification storehouse 7.
The pneumatic outlet of vacuum fan 9 is through pipe connection condenser 10, and the liquid exit of condenser 10 connects the water of condensation collection container, and the pneumatic outlet of condenser 10 connects gas-cleaning installation.Condenser 10 is used to realize gas-liquid separation, and gas-cleaning installation is used for removing the hazardous and noxious substances and the foul smell of gas, and the liquid that condenser 10 is separated gets into the water of condensation collection container and stores, and can use according to the resource that water quality suits.
The gas outlet that stirs mummification storehouse 2 is provided with sensor groups 5, and sensor groups 5 is made up of temperature sensor, humidity sensor, pressure transmitter and flow sensor.The flow of stirring mummification storehouse temperature inside, humidity, pressure and evaporation steam when sensor groups 5 is used for surveying work.
Claims (3)
1. garbage loading embeading marsh gas power generation residual heat to dry sludge equipment; Comprise generator system; It is characterized in that: described dewatered sludge equipment is by stirring mummification storehouse (2), conveying mummification storehouse (7), motor (1), hollow agitator (4) and carrying unit (8) to form; Carry mummification storehouse (7) sealing to be connected the below of stirring mummification storehouse (2); And the outlet of stirring mummification storehouse (2) is positioned at carries inside, mummification storehouse (7); Mud is carried unit (8) to be arranged on and is carried inside, mummification storehouse (7); Mud carries unit (8) to be made up of upper conveyor belt and lower conveyor belt; Upper conveyor belt is positioned between outlet of stirring mummification storehouse (2) and the outlet of the carrying mummification storehouse (7); Lower conveyor belt is positioned between outlet below of stirring mummification storehouse (2) and the outlet top of the carrying mummification storehouse (7); Hollow agitator (5) is made up of quill shaft and hollow propeller blade and is run through to be arranged on and stirs inside, mummification storehouse (2); Offer helicla flute on the quill shaft; The propeller blade correspondence of hollow is fixedly connected on the helicla flute; One end of hollow agitator (5) by shaft coupling be fixed on support (7) on motor (1) the axle be connected; The inwall that stirs mummification storehouse (2) is provided with the spindle (3) that the propeller blade profile with hollow is complementary; Be set with equally distributed vacuum heat-pipe on the outer wall of spindle (3); Be set with equally distributed vacuum heat-pipe on the outer wall in stirring mummification storehouse; Upper conveyor belt and lower conveyor belt inside all are set with equally distributed vacuum heat-pipe; The delivery port of the condenser coil of said generating set, exhanst gas outlet and wastewater outlet are connected to the import of hollow agitator (6) respectively through pipeline through valve; The outlet of hollow agitator (6) connects condensed water draining valve, flue gas exhaust valve and waste water draining valve respectively by pipeline; The top of stirring mummification storehouse (2) is provided with gas vent and is provided with gas vent with the sidewall of carrying mummification storehouse (7); Gas vent on stirring mummification storehouse (2) and carrying mummification storehouse (7) is connected the gas feed of air exhauster (9) by pipeline; The gas vent of air exhauster (9) connects condenser (10) by pipeline; The liquid outlet of condenser (10) connects the condensed water collection container, and the gas vent of condenser (10) connects gas cleaning plant.
2. like claims 1 described a kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment, it is characterized in that: described generating set is a garbage loading embeading marsh gas power generation unit.
3. like claims 1 described a kind of garbage loading embeading marsh gas power generation residual heat to dry sludge equipment; It is characterized in that: the gas outlet that stirs mummification storehouse (2) is provided with sensor groups (5), and sensor groups (5) is made up of temperature sensor, humidity sensor, pressure transmitter and flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101631977A CN102351396B (en) | 2011-06-17 | 2011-06-17 | Sludge drying equipment using waste heat of landfill gas power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101631977A CN102351396B (en) | 2011-06-17 | 2011-06-17 | Sludge drying equipment using waste heat of landfill gas power generation |
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| Publication Number | Publication Date |
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| CN102351396A true CN102351396A (en) | 2012-02-15 |
| CN102351396B CN102351396B (en) | 2013-10-16 |
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| CN2011101631977A Active CN102351396B (en) | 2011-06-17 | 2011-06-17 | Sludge drying equipment using waste heat of landfill gas power generation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084706A (en) * | 2014-11-11 | 2015-11-25 | 浙江三联环保机械设备有限公司 | Rotor-type sludge drying device |
| CN106378002A (en) * | 2016-10-31 | 2017-02-08 | 南开大学 | Deodorizing conveying device for conveying municipal solid waste and application |
| CN108585995A (en) * | 2017-12-13 | 2018-09-28 | 中山市和智电子科技有限公司 | A kind of agitating type composting reactor |
| CN109592876A (en) * | 2018-12-26 | 2019-04-09 | 徐州工程学院 | A kind of sludge drying system and method using wind drive flywheel energy storage |
| CN109775957A (en) * | 2019-02-15 | 2019-05-21 | 广州市香港科大***研究院 | A kind of sludge drying system and its implementation of combination Temperature Humidity Sensor |
| CN110423677A (en) * | 2019-08-19 | 2019-11-08 | 鹏鹞环保股份有限公司 | A kind of full mixing biological fermentation device of various dimensions |
| CN112661380A (en) * | 2019-10-15 | 2021-04-16 | 湖南省益能环保科技有限公司 | Briquetting forming device is carried to mud |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084706A (en) * | 2014-11-11 | 2015-11-25 | 浙江三联环保机械设备有限公司 | Rotor-type sludge drying device |
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| CN109592876A (en) * | 2018-12-26 | 2019-04-09 | 徐州工程学院 | A kind of sludge drying system and method using wind drive flywheel energy storage |
| CN109775957A (en) * | 2019-02-15 | 2019-05-21 | 广州市香港科大***研究院 | A kind of sludge drying system and its implementation of combination Temperature Humidity Sensor |
| CN110423677A (en) * | 2019-08-19 | 2019-11-08 | 鹏鹞环保股份有限公司 | A kind of full mixing biological fermentation device of various dimensions |
| CN112661380A (en) * | 2019-10-15 | 2021-04-16 | 湖南省益能环保科技有限公司 | Briquetting forming device is carried to mud |
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|---|---|
| CN102351396B (en) | 2013-10-16 |
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