CN205048449U - Processing system of grate type waste incinerator multifuel combustion mud - Google Patents
Processing system of grate type waste incinerator multifuel combustion mud Download PDFInfo
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- CN205048449U CN205048449U CN201520156723.0U CN201520156723U CN205048449U CN 205048449 U CN205048449 U CN 205048449U CN 201520156723 U CN201520156723 U CN 201520156723U CN 205048449 U CN205048449 U CN 205048449U
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- Prior art keywords
- mud
- incinerator
- heat exchanger
- sludge
- sludge drying
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- 238000002485 combustion reactions Methods 0.000 title claims abstract description 13
- 239000002699 waste materials Substances 0.000 title abstract description 8
- 239000011499 joint compounds Substances 0.000 title abstract 6
- 239000010802 sludge Substances 0.000 claims abstract description 28
- 239000010813 municipal solid wastes Substances 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003546 flue gases Substances 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 239000000446 fuels Substances 0.000 claims abstract description 11
- 238000007791 dehumidification Methods 0.000 claims abstract description 10
- 230000035943 smell Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixtures Substances 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 239000010902 straw Substances 0.000 abstract description 2
- 239000007789 gases Substances 0.000 abstract 3
- 238000004140 cleaning Methods 0.000 abstract 2
- 230000001629 suppression Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 239000010791 domestic waste Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002351 wastewater Substances 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model discloses a processing system of grate type waste incinerator multifuel combustion mud, system include rubbish pond, waste incinerator, indirect heat exchanger, sludge drying ware, granulator, dehumidification equipment, gas cleaning device. In the system, pass through earlier it will to burn the indirect heat exchanger of burning furnace waste incinerator's flue gas heat transfer gives heat medium, heat medium rethread the sludge drying ware transmits the mud for sewage factory, carry on half -driedization to mud, and mix with the straw half -driedization of mud back, and through the fuel of deriving that the granulator was suppressed into, the fuel of deriving is transported and is burnt the burning furnace burning to sending after mix with rubbish in the rubbish pond, and the foul smell that produces among the sludge drying ware dry run lets in the rubbish pond and handles as the combustion -supporting wind that burns burning furnace through dehumidification equipment dehumidification back, and the cold smoke gas that indirect heat exchanger came out is sneaked into and is burnt the emission after the gas cleaning device is handled of burning furnace flue gas. The utility model discloses the cross contamination problem of having avoided the direct mummification mud of used heat flue gas to arouse has realized the safe of sludge drying process foul smell simultaneously and has handled.
Description
Technical field
The utility model relates to a kind for the treatment of system of fire grate type incinerator multifuel combustion mud.
Background technology
Domestic garbage burning electricity generation technology has the double benefit of environmental protection and the energy, and in recent years, the development speed of the large-scale municipal solid waste incinerator of China's construction of modern is very fast, and built together more than 200 domestic waste incineration in the whole nation, wherein major part is fire grate type incinerator.The outstanding feature of China's application of city life garbage shows as: moisture content is high, calorific value is low, high, the recyclable composition of class content is low more than kitchen.For incineration plant, high kitchen is remaining can affect waste incineration operating mode with high-moisture, usually needs to add the higher stalk of calorific value as auxiliary fuel, and the system that can maintain normally is run.But densified straw is light, volatile matter content is higher, burning velocity is fast, stalk directly mixes combustion-supporting being difficult to of incinerator and burns in stove inter-sync with rubbish.
In addition, 2010, the medium above domestic waste amount of clearing in the whole nation was 1.56 hundred million tons, and wastewater emission amount 589.2 hundred million tons, wherein sanitary sewage 354.8 hundred million tons, excess sludge (moisture content 80%) generation reaches 1683.52 ten thousand tons.The high heating value that mud has is the most worthy part that mud is utilized as resource, if utilized completely by the calorific value of sludge of sewage treatment plant, can make mud while obtaining thoroughly process, produce economic benefit.But the calorific value resource of mud can be utilized two primary conditions: one is that the moisture content of mud must reduce as far as possible; Two is that organic matter in mud must preserve.The prime cost of sludge drying is heat energy, and the expenditure of heat energy accounts for more than 80% of mummification operating cost, selects and utilizes appropriate thermal source to be the key reduced costs.For reducing drying sludge energy consumption, be necessary the mummification thermal source seeking low cost.Zhejiang University father-in-law shines the technique newly proposing and utilize power-plant flue gas convection drying mud, fume waste heat can effectively utilize by this technique, but flue gas and mud directly contact and easily makes flue gas and mud cross pollution, the flue gas containing a large amount of foul smell produced after mummification needs to administer again.
Utility model content
The utility model object is exactly the defect in order to make up prior art, provides the treatment system of a kind of structure simple fire grate type incinerator multifuel combustion mud.
The utility model is achieved through the following technical solutions: a kind for the treatment of system of fire grate type incinerator multifuel combustion mud, it is characterized in that: this system comprises successively: incinerator, sludge drying unit, comminutor, generating equipment and smoke eliminator, wherein said sludge drying unit is primarily of indirect heat exchanger, sludge dryer, dehumidification equipment forms, in the system, described incinerator heat smoke out, heating agent is transferred heat to by indirect heat exchanger, heating agent brings heat into described sludge dryer, mud is after described sludge dryer is semi-oriented, send into described comminutor after mixing with stalk and be pressed into derivatived fuel, derivatived fuel is transported to the garbage pool before incinerator, the foul smell that sludge dryer produces is after described dehumidification equipment dehumidifying, the combustion air process that garbage pool makes incinerator is sent into by pipeline, the cold flue gas that indirect heat exchanger is discharged sends into described smoke eliminator through pipeline, generating equipment comprises steam turbine, generator, described smoke eliminator comprises extracting tower, sack cleaner, air-introduced machine and chimney.
Described sludge dryer is hollow blade dryer.
Feature of the present utility model and advantage are:
(1) mud mixes at garbage burning factory the rest processing capacity that burning not only can make full use of existing garbage incinerating power plant, and can the treatment of wastes with processes of wastes against one another, is effectively turned waste into wealth by mud again, achieves its harmless treatment.Being conducive to solving sludge deep mummification brings high cost, merely burning mixed mud to affect again the problems such as the normal operation of waste incineration and generating electricity system.
(2) utilize fume waste heat as the drying source of mud, when not consuming new forms of energy, moisture percentage in sewage sludge significantly can be reduced, power plant's thermal pollution can be reduced, sludge drying cost can be reduced again, realize low energy consumption dewatered sludge; Waste heat flue gas intercepts from power plant's flue, can not affect the normal operation of power plants generating electricity, and by heat exchanger indirect heat exchange to heating agent, effectively prevent the cross pollution of flue gas and mud.
(3) features such as the blade of hollow blade drier has self-purification capacity, heat utilization ratio is high, radiation loss is few, compact equipment, the foul smell that mud drying process produces enters the garbage pool of waste fire grate furnace incineration system, send into incinerator by supply air system afterwards combustion-supporting, efficiently avoid foul smell and shed to the secondary pollution of environment.
(4) main component of mud is carbohydrate, fat and protein, and these materials have good cohesiveness.Semi-dry sludge is mixed with stalk and is pressed into derivatived fuel, just can utilize this characteristic that stalk and mud are became one, both solved the difficult problems such as the energy consumption run in traditional biomass fuel production forming process is too high, abrasion machine is serious, and be conducive to again increasing the firing duration of stalk in incinerator.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, garbage pool, 2, incinerator, 3, indirect heat exchanger, 4, hollow blade drier, 5, comminutor, 6, dehumidification equipment, 7, generating equipment, 8, extracting tower, 9, sack cleaner, 10, air-introduced machine, 11 chimneys.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby enumerate following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind for the treatment of system of fire grate type incinerator multifuel combustion mud, this system comprises successively: intercept a part at incinerator 2 heat smoke out (about 200 DEG C) and send into indirect heat exchanger 3, heating agent is transferred heat to by indirect heat exchanger 3, heating agent brings heat into hollow blade drier 4, hollow blade drier 4 is sent into after the mud of moisture content 80% enters factory, carry out semi-oriented to sewage plant sludge in described hollow blade drier 4, mix with stalk after about sludge drying to 40%, both mixed proportions are 1: 2 ~ 1: 3, send into comminutor 5 after mixing and be pressed into derivatived fuel, derivatived fuel finished product sends into garbage pool 1, burn with sending described incinerator 2 after domestic garbage mixing, the foul smell that described hollow blade drier 4 produces is after dehumidification equipment 6 dehumidification, pass into the combustion air process of garbage pool 1 as described incinerator, discharge after described smoke eliminator process together with the flue gas that indirect heat exchanger 3 cold flue gas out and described incinerator 2 are discharged.Generating equipment 7 comprises steam turbine, generator; The smoke eliminator of described incinerator 2 comprises extracting tower 8, sack cleaner 9, air-introduced machine 10 and chimney 11.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (2)
1. the treatment system of a fire grate type incinerator multifuel combustion mud, it is characterized in that: this system comprises successively: incinerator, sludge drying unit, comminutor, generating equipment and smoke eliminator, wherein said sludge drying unit is primarily of indirect heat exchanger, sludge dryer, dehumidification equipment forms, in the system, described incinerator heat smoke out, heating agent is transferred heat to by indirect heat exchanger, heating agent brings heat into described sludge dryer, mud is after described sludge dryer is semi-oriented, send into described comminutor after mixing with stalk and be pressed into derivatived fuel, derivatived fuel is transported to the garbage pool before incinerator, the foul smell that sludge dryer produces is after described dehumidification equipment dehumidifying, the combustion air process that garbage pool makes incinerator is sent into by pipeline, the cold flue gas that indirect heat exchanger is discharged sends into described smoke eliminator through pipeline, generating equipment comprises steam turbine, generator, described smoke eliminator comprises extracting tower, sack cleaner, air-introduced machine and chimney.
2. the treatment system of a kind of fire grate type incinerator multifuel combustion mud according to claim 1, is characterized in that sludge dryer is hollow blade dryer.
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| CN201520156723.0U CN205048449U (en) | 2015-03-17 | 2015-03-17 | Processing system of grate type waste incinerator multifuel combustion mud |
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| CN201520156723.0U CN205048449U (en) | 2015-03-17 | 2015-03-17 | Processing system of grate type waste incinerator multifuel combustion mud |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871125A (en) * | 2017-02-07 | 2017-06-20 | 北京高安屯垃圾焚烧有限公司 | A kind of incinerator sludge directly mixes co-combustion method and system |
| CN107388262A (en) * | 2017-07-27 | 2017-11-24 | 重庆盎瑞悦科技有限公司 | A kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge |
| CN107830525A (en) * | 2017-11-17 | 2018-03-23 | 华南理工大学 | A kind of rubbish cooperates with incineration treatment method and device with semi-dry sludge |
-
2015
- 2015-03-17 CN CN201520156723.0U patent/CN205048449U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871125A (en) * | 2017-02-07 | 2017-06-20 | 北京高安屯垃圾焚烧有限公司 | A kind of incinerator sludge directly mixes co-combustion method and system |
| CN107388262A (en) * | 2017-07-27 | 2017-11-24 | 重庆盎瑞悦科技有限公司 | A kind of harmlessness disposing method of comprehensive utilization of high saliferous chemical engineering sludge |
| CN107830525A (en) * | 2017-11-17 | 2018-03-23 | 华南理工大学 | A kind of rubbish cooperates with incineration treatment method and device with semi-dry sludge |
| WO2019095964A1 (en) * | 2017-11-17 | 2019-05-23 | 华南理工大学 | Treatment method and device for cooperatively burning garbage and semi-dry sludge |
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