CN1752037A - Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation - Google Patents

Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation Download PDF

Info

Publication number
CN1752037A
CN1752037A CNA2005100507017A CN200510050701A CN1752037A CN 1752037 A CN1752037 A CN 1752037A CN A2005100507017 A CNA2005100507017 A CN A2005100507017A CN 200510050701 A CN200510050701 A CN 200510050701A CN 1752037 A CN1752037 A CN 1752037A
Authority
CN
China
Prior art keywords
sludge
power generation
mud
drying kiln
revolution drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2005100507017A
Other languages
Chinese (zh)
Other versions
CN1312064C (en
Inventor
翁焕新
苏闽华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CNB2005100507017A priority Critical patent/CN1312064C/en
Publication of CN1752037A publication Critical patent/CN1752037A/en
Application granted granted Critical
Publication of CN1312064C publication Critical patent/CN1312064C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/40Valorisation of by-products of wastewater, sewage or sludge processing

Abstract

A system for drying the sludge by the fume afterheat of electric power plant using garbage as its fuel and using the dried sludge to generate electric energy is composed of a sludge pre-treating system, a feeding system consisting of strip extruding unit, bucket belt type conveyer and feeding inlet, a heat source unit, a sludge drying system consisting of the first rotary baking kiln, cooling belt conveyer, pulverizing, the second bucket belt type conveyer, feeding inlet and the second rotary baking kiln, a dust and gas removing system, and a garbage and sludge burning and electric generating system.

Description

Utilize garbage power plant smoke residual heat to dry sludge and sludge power generation integral system
Technical field
The present invention relates to a kind of garbage power plant smoke residual heat to dry sludge and sludge power generation integral system of utilizing.
Background technology
City domestic sewage and trade effluent are through the processing of sewage work, and back up to standard discharging is protection water resources and the requisite environmental engineering measure of Urban Ecology Environment Construction.
Urban sewage treatment system comprises sewage disposal and sludge treatment two portions.In recent years, by introducing advanced foreign technology and technological transformation, the water technology level of China is greatly improved, various types of sewage can both be effectively controlled, yet, to the sludge treatment technology that produces in the sewage treatment process, then lag behind the development of urban sewage treatment technology out and away.All kinds of sewage are through handling, and most pollutents are transferred in the mud, therefore, sludge from wastewater treatment plant except having the characteristics that water ratio is high and quantity is big, and also enrichment the hazardous contaminant of a large amount of high densitys.
Be enriched with a large amount of organism and heavy metal in polluted river and the lake sediment; particularly flow through most of river course in China city deposits all the year round; the shipping function in river course is obviously descended; and quality of water environment is gone from bad to worse, dredging is to recover river, lake natural functions and the effective engineering measure of protection water surrounding.Yet dredging mud has the characteristics similar to sludge from wastewater treatment plant, and promptly quantity is big, the water ratio height, and be enriched with organic pollutants.
At present, the method of disposal that China's sludge from wastewater treatment plant and training of channel mud mainly take interim heap to bury, not only spend a large amount of funds and take a large amount of land resources, and cause serious secondary pollution to ecotope, particularly ooze under the sewage in the mud, be unable to estimate especially to the harm that groundwater resource bring, and in fact peri-urban can not have space and the place that is fit to stack this class mud, the interim heap of mud buries the harm of the secondary environmental pollution that is produced, and has in fact offset the environmental benefit of sewage disposal.Face the reality that environmental problem is sharp-pointed day by day and mud harm increasingly sharpens that mud causes, people attempt utilizing the mud as fertilizer sources, be used for agricultural or greening, but, each contained heavy metal species has limited the adaptability (table 1) that soil utilizes mud in the mud, their meeting enrichments in soil, and enter food chain by the absorption of crop, finally jeopardize the health of human body, even some mud is from city domestic sewage, though heavy metal content is lower, contained pathogenic agent and persistence organic pollutant in the mud, and the various medicaments that add in the sewage treatment process, all can bring potential harm to environment.
The content of heavy metal in table 1 municipal sludge and the dredging mud
Project Heavy metal (mg/kg) Remarks
Cu Pb Zn Cr Cd Ni As Hg
Municipal sludge Mean value 326.6 192.9 2261 296.3 4.1 297.4 16.9 3.9 According to 4 years analysis data
Content range 236.2- 397.2 80.78- 314.0 69.5- 3790 27.9- 592.4 1.35- 7.2 57.5- 750.3 8.9- 31.9 0.8- 4.3
Dredging mud Mean value 138.77 69.6 2042 93.0 1.6 46.8 20.7 0.8 Canal (Hangzhou Section)
Content range 13.7- 772.3 17.3- 164.2 73.89- 4153 44.1- 123.2 0.27- 6.91 27.3- 80.7 5.97- 65.8 0.1- 5.03
Some places attempt to reach by burning the purpose of mud decrement, but, sludge incineration facility investment volume height, energy-output ratio is big, the working cost costliness, the expense of sludge incineration is more than 400 yuan/ton, add mud when burning, can to atmospheric environment bring pollute and burn after residue reason such as still need dispose, according to the national conditions of China, sludge incineration is handled and is difficult to economically bear, and goes back imperfection technically.
Along with increasing rapidly of China's rapid economy development and urban population, the municipal sewage treatment amount this means that the quantity of sludge of sewage treatment plant will grow with each passing day, therefore constantly increasing, open up that municipal sludge is innoxious, the effective way of minimizing and recycling treatment, imperative.According to us to studies show that of sludge from wastewater treatment plant physico-chemical property, the main chemical compositions content in the mud little (table 2), this has illustrated the mud that the municipal sewage plant produces, its main chemical constitution is a kept stable.
The chemical constitution (%) of table 2 typical urban sludge of sewage treatment plant
Sample Chemical constitution (%) Remarks
SiO 2 MgO CaO Fe 2O 3 Al 2O 3 K 2O Na 2O Full nitrogen Full phosphorus Loss on ignition
Municipal sludge Content range 35.10 - 35.78 2.18 - 3.73 5.40 - 6.44 2.80 - 4.68 7.20 - 8.47 0.69 - 0.82 0.51 - 0.62 1.35 - 2.90 0.8 - 0.7 35.26 - 36.30 3 years monitoring data
Mean value 35.49 3.13 6.53 3.84 7.94 0.73 0.58 2.13 0.75 35.95
The loss on ignition of mud is higher, on average reaches about 36%, and the content of full nitrogen and full phosphorus is also higher, and this shows and contains higher organic substance in the mud.Organic content height in the mud, its calorific value is also high, shows by mensuration, and the calorific value of sludge from wastewater treatment plant is equivalent to the calorific value of brown coal, reaches the 1/3-1/2 (table 3) of standard coal calorific value; Content organic in the city river dredging mud is also higher, according between organism and the calorific value mutually
Table 3 sludge from wastewater treatment plant and burning of coal calorific value
Kind Thermal value (doing matter)
(kilojoule per kilogram) (kcal/kg)
Primary sludge (fresh mud) 15800-18200 3780-4354
Active sludge (fresh mud) 15200-15300 3636-3660
Active mud+just heavy mud (fresh mud) 17000 4067
Active mud+just heavy mud (digestion mud) 7450 1782
Bituminous coal (standard coal) 20900-33500 5000-8014
Brown coal 9540-12720 2282-3043
Relation, its calorific value is also than higher.If the heat energy in these mud can be developed, not only can make municipal sludge obtain thoroughly handling safely, and the heat energy that mud is had become valuable resource.
Yet, mud and training of channel mud from sewage work's generation, pass through mechanical dehydration, water ratio is generally between 75%-85%, if mud can be burnt, must be at first the solid content of mud be reached 100%, this means needs a large amount of external energies, show according to experiment and calculating, will be with the complete after-flame of the mud of water ratio 75%-85%, sludge drying is arrived the needed energy of burning-point, greater than the energy that sludge incineration produced, this just sludge incineration handle the reason need high cost.We have proposed to utilize garbage power plant smoke residual heat to dry sludge and sludge power generation integral system, utilize garbage power plant smoke residual heat with sludge drying earlier, then, with the mud after the mummification with the rubbish burning electricity generation, residue through rubbish, mud and coal behind the burning electricity generation, be used for producing light building material, thereby realize that municipal sludge obtains the ultimate aim of thoroughly innoxious, minimizing and recycling treatment.
Summary of the invention
The purpose of this invention is to provide a kind of garbage power plant smoke residual heat to dry sludge and sludge power generation integral system of utilizing.
It has mire preprocess system, feed system, heat source system, sludge drying system, dedusting gas-freeing system and rubbish sludge incineration power generation system; Mire preprocess system has slot type heap mud field, is provided with in slot type heap mud field and turns over mixed machine, soil organisms filter bed; Feed system has banded extruder, first belt-bucket elevator and first opening for feed that is connected successively; Heat source system has rubbish sludge incineration power generation assembly, composite dedusting device, flue, first induced draft fan, first vent-pipe, the air door that is connected successively, and air door joins with the first revolution drying kiln and the second revolution drying kiln respectively; Sludge drying system has the first revolution drying kiln, cooling conveyor, separation cuts formula pulverizer, second belt-bucket elevator, second opening for feed, the second revolution drying kiln that is connected successively; The dedusting gas-freeing system has second vent-pipe, and second vent-pipe links to each other with the first revolution drying kiln, the second revolution drying kiln, water dust scrubber respectively, and water dust scrubber is connected with second induced draft fan, the 3rd vent-pipe, chimney in turn; Rubbish sludge incineration power generation system has conveying belt, and conveying belt is connected with rubbish sludge incineration power generation assembly, composite dedusting device in turn.
The present invention has opened up an effective new way for innoxious, the minimizing and the recycling treatment of sludge from wastewater treatment plant or river, lake dredging mud; Utilize garbage power plant smoke residual heat to dry sludge, when the energy that garbage power is produced maximizes the use, also alleviated hot gas to atmospheric discharging; It is 120 ℃-160 ℃ flue gas dewatered sludge that the present invention utilizes the refuse-burning plant waste heat supply temperature, because mud obtains mummification under cold condition, therefore mud has kept original calorific value substantially, thereby make mud with the rubbish burning electricity generation time, contribute bigger heat, in addition, owing to adopted the tandem sludge drying system, even there is the revolution drying kiln to need maintenance, still can make the smooth and easy discharge of flue gas, can not influence the normal operation of refuse-burning plant.Utilize garbage power plant smoke residual heat to dry sludge, can be under the situation that need not consume new forms of energy, with sludge of sewage treatment plant or river, the water ratio of lake dredging mud reduces, the heat resource of mud is maximized the use, it is innoxious that municipal sludge is really obtained, minimizing and recycling treatment, in fact this opened up a cyclic utilization of waste, the effective way of the treatment of wastes with processes of wastes against one another, not only can produce significant social and environmental benefit, and can obtain tangible economic benefit, the present invention has dropped into practice on jiangsu wuxi and other places, practice shows, adopts this technology can obtain significant social, environment and economic triple benefit.
Description of drawings
Accompanying drawing is to utilize garbage power plant smoke residual heat to dry sludge and sludge power generation integral system synoptic diagram.Among the figure: banded extruder 1, first belt-bucket elevator 2, first opening for feed 3, the first revolution drying kiln 4, cold conveying belt 5, separation cuts formula pulverizer 6, second belt-bucket elevator 7, second opening for feed 8, the second revolution drying kiln 9, conveying belt 10, rubbish sludge incineration power generation assembly 11, composite dedusting device 12, flue 13, first induced draft fan 14, first vent-pipe 15, air door 16, second vent-pipe 17, water dust scrubber 18, second induced draft fan 19, the 3rd vent-pipe 20, chimney 21, mud is stacked field 22, turn over the machine 23 that mixes, soil organisms filter bed 24.
Embodiment
As shown in drawings, utilize garbage power plant smoke residual heat to dry sludge and sludge power generation integral system to have mire preprocess system, feed system, heat source system, sludge drying system, dedusting gas-freeing system and rubbish sludge incineration power generation system; Mire preprocess system has slot type heap mud field (22), is provided with to turn in slot type heap mud field and mixes machine 23, soil organisms filter bed 24; Feed system has banded extruder 1, first belt-bucket elevator 2 and first opening for feed 3 that is connected successively; Heating system has rubbish sludge incineration power generation assembly 11, composite dedusting device 12, flue 13, first induced draft fan 14, first vent-pipe 15, the air door 16 that is connected successively, and air door 16 joins with the first revolution drying kiln 4 and the second revolution drying kiln 9 respectively; Sludge drying system has the first revolution drying kiln 4, cooling conveyor 5, separation cuts formula pulverizer 6, second belt-bucket elevator 7, second opening for feed 8, the second revolution drying kiln 9 that is connected successively; The dedusting gas-freeing system has second vent-pipe, 17, the second vent-pipes 17 and links to each other with the first revolution drying kiln 4, the second revolution drying kiln 9, water dust scrubber 18 respectively, and water dust scrubber 18 is connected with second induced draft fan 19, the 3rd vent-pipe 20, chimney 21 in turn; Rubbish sludge incineration power generation system has conveying belt 10, and conveying belt 10 is connected with rubbish sludge incineration power generation assembly 11, composite dedusting device 12 in turn.
Utilize garbage power plant smoke residual heat to dry sludge and sludge power generation integral system by mire preprocess system, feed system, heat source system (rubbish sludge incineration power generation system), sludge drying system, six parts such as dedusting gas-freeing system and cooling handling equipment are formed, and the concrete member of each part is as follows:
1. mire preprocess system, to be 75~85% sludge from wastewater treatment plant or river, lake dredging mud at mud stack stacked 2-5 days with water content, by the effect of turning over the machine of mixing, evaporate a part of moisture content on the one hand, make mud homogenizing on the other hand, create conditions for improving the sludge drying effect from different sewage works or river, lake.The gas that discharges in the mud preprocessing process is eliminated by the soil organisms filter bed.
2. feed system will be sent into banded extruder through pretreated mud, and mud is made the bar column that diameter is 6~10mm, with belt-bucket elevator mud be sent into anhydration system then.
3. heat source system with the flue gas after the rubbish sludge incineration generating, after the complex dust collector dedusting, is delivered to respectively in two revolution drying kilns by flue with induced draft fan, utilizes fume afterheat (temperature is 120 ℃~160 ℃) to carry out the tandem sludge drying.
4. sludge drying system, form by two different revolution drying kiln, cooling conveyor, separation cuts formula pulverizers of volume, first revolution drying kiln diameter is 2.0~2.6m, length is 22.0~28.0m, second revolution drying kiln diameter is 1.8~2.4m, length is 20~26m, and separation cuts formula pulverizer will separate less than the mud granule of 6~8mm earlier, then the cutting and grinding of compliant macrobead mud is become the particle of particle diameter less than 6~8mm.
5. dedusting gas-freeing system, form by vent-pipe, water dust scrubber and induced draft fan, vent-pipe connects the afterbody and the cooling conveyor of two revolution drying kilns respectively, and join with water dust scrubber, the gas that discharges in the mud drying process carries out the dedusting degasification through water dust scrubber, uses induced draft fan then, to reach the tail gas of atmospheric emission standard, send into chimney.
6. the cooling handling equipment by being installed in the fully sheathed case top, becomes several cold wind spray jets of miter angle and conveying belt to form with the mud working direction.Mud in the process that is transported to the second revolution drying kiln, through the cold wind stripping, can play the effect of further dehydration after coming out from the first revolution drying kiln in accelerating cooling process, residual gas further is eliminated.Mud by conveying belt, is delivered to rubbish power generating device after coming out from the second revolution drying kiln, mixes with rubbish, coal and carries out combustion power generation, and the residue in afterburnt is as producing light building material.

Claims (3)

1. one kind is utilized garbage power plant smoke residual heat to dry sludge and sludge power generation integral system, it is characterized in that it has mire preprocess system, feed system, heat source system, sludge drying system, dedusting gas-freeing system and rubbish sludge incineration power generation system; Mire preprocess system has slot type heap mud field (22), is provided with the mixed machine (23) that turns over, soil organisms filter bed (24) in slot type heap mud field; Feed system has banded extruder (1), first belt-bucket elevator (2) and first opening for feed (3) that is connected successively; Heat source system has rubbish sludge incineration power generation assembly (11), composite dedusting device (12), flue (13), first induced draft fan (14), first vent-pipe (15), the air door (16) that is connected successively, and air door (16) joins with the first revolution drying kiln (4) and the second revolution drying kiln (9) respectively; Sludge drying system has the first revolution drying kiln (4), cooling conveyor (5), separation cuts formula pulverizer (6), second belt-bucket elevator (7), second opening for feed (8), the second revolution drying kiln (9) that is connected successively; The dedusting gas-freeing system has second vent-pipe (17), second vent-pipe (17) links to each other with the first revolution drying kiln (4), the second revolution drying kiln (9), water dust scrubber (18) respectively, and water dust scrubber (18) is connected with second induced draft fan (19), the 3rd vent-pipe (20), chimney (21) in turn; Rubbish sludge incineration power generation system has conveying belt (10), and conveying belt (10) is connected with rubbish sludge incineration power generation assembly (11), composite dedusting device (12) in turn.
2. a kind of garbage power plant smoke residual heat to dry sludge and sludge power generation integral system of utilizing according to claim 1 is characterized in that, described first revolution drying kiln diameter is 2.0~2.6m, and length is 22.0~28.0m.
3. a kind of garbage power plant smoke residual heat to dry sludge and sludge power generation integral system of utilizing according to claim 1 is characterized in that, described second revolution drying kiln diameter is 1.8~2.4m, and length is 20~26m.
CNB2005100507017A 2005-07-14 2005-07-14 Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation Expired - Fee Related CN1312064C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100507017A CN1312064C (en) 2005-07-14 2005-07-14 Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100507017A CN1312064C (en) 2005-07-14 2005-07-14 Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation

Publications (2)

Publication Number Publication Date
CN1752037A true CN1752037A (en) 2006-03-29
CN1312064C CN1312064C (en) 2007-04-25

Family

ID=36679051

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100507017A Expired - Fee Related CN1312064C (en) 2005-07-14 2005-07-14 Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation

Country Status (1)

Country Link
CN (1) CN1312064C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100429166C (en) * 2006-04-04 2008-10-29 浙江大学 Sludge drying system using combination of smoke residual heat and external heat supply source
CN100445224C (en) * 2006-07-07 2008-12-24 浙江大学 Sludge drying and granulating system by using residual heat of exhaust flue gas in garbage power
CN100455528C (en) * 2006-07-06 2009-01-28 浙江大学 Parallel type low-power consumption sludge drying and granulating system
CN102476907A (en) * 2010-11-25 2012-05-30 溧阳正昌干燥设备有限公司 Equipment and method of high-efficiency high-speed environmentally-friendly energy-saving sludge treatment system
CN102531318A (en) * 2011-12-06 2012-07-04 华北电力大学(保定) Sludge drying and incinerating integrated zero-discharge treatment system and treatment process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050521A (en) * 1999-08-06 2001-02-23 Maejima Fumio Multi-function processing apparatus
CN1247841A (en) * 1999-09-29 2000-03-22 陈华魁 Cement baking process in kiln with dry preheater by using city garbage as material
CN1556349A (en) * 2004-01-05 2004-12-22 朱剑峰 Domestic garbage treatment and cement rotary kiln combined production technology

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100429166C (en) * 2006-04-04 2008-10-29 浙江大学 Sludge drying system using combination of smoke residual heat and external heat supply source
CN100455528C (en) * 2006-07-06 2009-01-28 浙江大学 Parallel type low-power consumption sludge drying and granulating system
CN100445224C (en) * 2006-07-07 2008-12-24 浙江大学 Sludge drying and granulating system by using residual heat of exhaust flue gas in garbage power
CN102476907A (en) * 2010-11-25 2012-05-30 溧阳正昌干燥设备有限公司 Equipment and method of high-efficiency high-speed environmentally-friendly energy-saving sludge treatment system
CN102531318A (en) * 2011-12-06 2012-07-04 华北电力大学(保定) Sludge drying and incinerating integrated zero-discharge treatment system and treatment process
CN102531318B (en) * 2011-12-06 2013-10-30 华北电力大学(保定) Sludge drying and incinerating integrated zero-discharge treatment system and treatment process

Also Published As

Publication number Publication date
CN1312064C (en) 2007-04-25

Similar Documents

Publication Publication Date Title
CN1285521C (en) Method for integrating drying sludge using remaining heat of flume from power plant by rubbish and electricity generation using sludge
CN1294091C (en) Method for drying sludge by residual heat from boiler fume
CN201990601U (en) System capable of cooperatively treating domestic garbage with cement clinker production line
CN100374381C (en) Method for processing organic chloride and heavy metal polluted bed mud
CN1312064C (en) Integrated system of using garbage power plant smoke residual heat to dry sludge and sludge power generation
CN101643305B (en) Method for integrating sludge drying by using brickkiln fume afterheat and brick making by using sludge
CN101177331B (en) Method and device for processing sludge
CN1300021C (en) Anhydration system for sludge by using remaining heat of flue gas from steam power plant
CN101792247A (en) Sludge treatment method capable of combining powerful dehydration with low-temperature mummification
CN100445224C (en) Sludge drying and granulating system by using residual heat of exhaust flue gas in garbage power
CN106995306B (en) Method for firing ceramsite by using activated sludge
CN1314606C (en) Tandem type anhydration system for sludge by using remaining heat of flue gas from steam power plant
CN2856041Y (en) Sludge drying and generating integrated unit by utilizing fume afterheat of garbage generating plant
CN112066384A (en) Straw household garbage waste bundling and pyrolysis cooperative treatment method
CN100364906C (en) Method for drying sludge using combined flume residual heat and supplied heat
CN107572740A (en) A kind of sludge at low temperature desiccation burning integral method and system using fume afterheat
CN200952877Y (en) Sludge drying and granulating system utilizing refuse power generation waste heat
CN100364907C (en) Sludge drying system using combination of smoke residual heat and two external heat supply sources
CN205447766U (en) Burner of carbomorphism mud
CN109502940A (en) Cooperate with refuse-burning plant using the method for self- propagating pyrolysis installation processing sludge
CN202808709U (en) Sludge drying, pyrolysis gasifying and incinerating integrated treatment system
CN101643307B (en) Method for utilizing fume afterheat of cement plant to heat-dry sludge and prepare cement by firing sludge
CN102976572A (en) New method for sludge treatment
CN2816032Y (en) Series sludge-drying system using after heat of smoke from steam power plant
CN100429166C (en) Sludge drying system using combination of smoke residual heat and external heat supply source

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070425

C17 Cessation of patent right