CN1195688C - City domestic garbage treating process - Google Patents
City domestic garbage treating process Download PDFInfo
- Publication number
- CN1195688C CN1195688C CNB031126456A CN03112645A CN1195688C CN 1195688 C CN1195688 C CN 1195688C CN B031126456 A CNB031126456 A CN B031126456A CN 03112645 A CN03112645 A CN 03112645A CN 1195688 C CN1195688 C CN 1195688C
- Authority
- CN
- China
- Prior art keywords
- rubbish
- garbage
- burning
- fermentation
- flue gas
- Prior art date
Links
- 239000010813 municipal solid wastes Substances 0.000 title claims abstract description 45
- 238000000034 methods Methods 0.000 title claims abstract description 17
- 238000000855 fermentation Methods 0.000 claims abstract description 17
- 230000004151 fermentation Effects 0.000 claims abstract description 17
- 239000002893 slag Substances 0.000 claims abstract description 13
- 239000002912 waste gases Substances 0.000 claims abstract description 12
- 239000002351 wastewater Substances 0.000 claims abstract description 11
- 238000002485 combustion reactions Methods 0.000 claims abstract description 10
- 238000005516 engineering processes Methods 0.000 claims abstract description 8
- 239000010865 sewage Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gases Substances 0.000 claims description 13
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- 239000002994 raw materials Substances 0.000 description 1
- 239000007921 sprays Substances 0.000 description 1
- 238000005979 thermal decomposition reactions Methods 0.000 description 1
- 239000011901 water Substances 0.000 description 1
Classifications
-
- 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
- Y02W10/20—Sludge processing
Abstract
Description
Affiliated technical field
The present invention relates to a kind of treatment process of rubbish, especially the treatment process of domestic waste.
Background technology
The treatment process of traditional domestic waste has three kinds of landfill, compost and burnings, and two kinds of methods of landfill and compost all need take bigger place, and can pollute environment.
On November 27th, 2002 disclosed CN1094802C patent (application number: 97105152) disclose a kind of city house refuse treatment method, be that rubbish is discharged in the accumulator spontaneous fermentation 4-6 days, the draining that oozes that oozes after the fermentation that drop goes out sprays in the incinerator Pintsch process or carries out sewage disposal, the foul smell that produces during fermentation is sent into the incinerator internal combustion and is decomposed, rubbish after the fermentation is sent into the incinerator internal combustion, magnetic separation is sieved after isolating the scrap iron recovery to slag then, thin slag is used to pave the way or improve the soil, and last remaining thick slag is as innoxious covering soil.This treatment process directly will be sent into the stove internal combustion without sorting behind the rubbish fermentation, bulk rubbish in the rubbish or iron wire easily stop up the feeding mouth or the slag notch of incinerator, what influence was burned carries out smoothly, next is that rubbish enters incinerator before without oven dry, this refuse thermal value is little, influence temperature of combustion, easily produce Dioxins, have a strong impact on people's living environment.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can not stop up incinerator, can effectively check the garbage treatment technology that produces Dioxins.
The present invention includes following processing step:
(1), stores fermentation.Fresh domestic refuse is discharged into airtight negative pressure rubbish accumulator, makes rubbish spontaneous fermentation a couple of days.
(2), the processing of waste gas, waste water in the fermenting process.Waste gas in the accumulator extracted to send in the incinerator use wind, make refuse chute maintenance negative pressure excessive simultaneously to prevent foul smell as burning; Send sewage work to handle the waste water in the accumulator.
(3), sorting.Rubbish is sorted, remove bulk rubbish and irony.
(4), oven dry.To send into through the rubbish of sorting utilizes the tail gas after burning to carry out drying as thermal source in the dryer.
(5), burn.Sending into incinerator through the rubbish after the oven dry burns.
(6), flue gas is handled.The flue gas that burning produces is sent into dual firing chamber's high-temp combustion, make it to reach and burn discharging again behind the most state entirely.
(7), cleaning slag.Slag cleaning come out of the stove and screen brickmaking and sell or do his and use.
Because the waste gas that produces in the process that has adopted technique scheme, rubbish to ferment in fermentation vat is burned as combustion air in the stove, has reduced the excessive of waste gas, has prevented the secondary pollution of waste gas; Waste water is sent to sewage work and handles, and has reduced second pollution of wastewater; Rubbish after the fermentation is sent into the incinerator internal combustion after letter sorting, oven dry, overcome the phenomenon of stopping up burner hearth, has improved the calorific value of rubbish, has guaranteed that effectively incendiary carries out and checked the generation of Dioxins smoothly; Slag behind the incineration firing can be utilized fully and make paving brick or make his usefulness, has alleviated the cost of refuse treatment.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Accompanying drawing is a process route view of the present invention.
Embodiment
In embodiment as shown in the figure, concrete processing step is as follows:
(1), storage fermentation:
Fresh domestic refuse is discharged into airtight negative pressure rubbish accumulator, and after rubbish spontaneous fermentation was counted 3-7 days, msw water content reduced about 10%.The air that extracts the rubbish accumulator makes refuse chute keep negative pressure excessive to prevent foul smell as burning air feed.
(2), the processing of waste gas, waste water in the fermenting process:
Waste gas in the accumulator extracted to send in the incinerator use wind, make refuse chute maintenance negative pressure excessive simultaneously to prevent foul smell as burning; Send sewage work to handle the waste water in the accumulator.
(3), sorting:
With the fermentation after rubbish at first rubbish remove irony impurity through magnetic belt separator, again with the rubbish manual sorting, choose bulk rubbish.
(4), oven dry:
Send into rotary dryer through the rubbish of letter sorting and carry out drying, hot blast provides behind the air preheater indirect heat transfer by burning the back high-temperature tail gas.
(5), burn:
Sending into vertical incinerator for thermal decomposition through the rubbish after the oven dry burns.
(6), flue gas is handled:
The pyrolysis gas that rubbish process pyrolysis oven produces enters dual firing chamber with flue gas and aqueous vapor from bottom to top under the road induced draft fan effect of back, flue gas is fully burning under turbulent flow and the peroxide situation, temperature of combustion is 900 ℃ ± 30 ℃, gas residence time was greater than 2 seconds, high-temperature flue gas reaches and burns method removal acidic gas in flue gas and the flue gas particle that adopts behind the most state semidrying depickling to combine with wet dedusting and add bag-type dust entirely, discharge from exhanst gas outlet then, prevented the generation of Dioxins.
(7), cleaning slag:
Slag cleaning after burning is come out of the stove, after screening, can be used as brick-making raw material and sell.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031126456A CN1195688C (en) | 2003-01-05 | 2003-01-05 | City domestic garbage treating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031126456A CN1195688C (en) | 2003-01-05 | 2003-01-05 | City domestic garbage treating process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1468818A CN1468818A (en) | 2004-01-21 |
| CN1195688C true CN1195688C (en) | 2005-04-06 |
Family
ID=34152510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031126456A CN1195688C (en) | 2003-01-05 | 2003-01-05 | City domestic garbage treating process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1195688C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730175B (en) * | 2005-08-01 | 2010-05-12 | 四川海诺尔环保产业投资有限公司 | Domestic refuse comprehensive treatment method |
| CN101786094B (en) * | 2010-03-25 | 2011-02-09 | 河北省建筑材料工业设计研究院 | Combined treatment process for household garbage and sewage |
| CN102294161A (en) * | 2011-07-15 | 2011-12-28 | 沈阳环境科学研究院 | Method for simultaneously removing dioxin and heavy metals from incineration smoke |
| CN102374543A (en) * | 2011-08-08 | 2012-03-14 | 南京大学 | Anaerobic fermentation-incineration combined treatment method for organic wastes |
| CN102424612A (en) * | 2011-09-08 | 2012-04-25 | 河南省洁苑环保科技有限公司 | Rapid degradation and fertilizer making technology for degradable organic matter in household garbage |
| CN102430557A (en) * | 2011-09-08 | 2012-05-02 | 河南省洁苑环保科技有限公司 | Household waste hydraulic separation technology |
| JP5438145B2 (en) * | 2012-01-31 | 2014-03-12 | 月島機械株式会社 | Pressurized flow furnace system |
| CN102699007A (en) * | 2012-05-31 | 2012-10-03 | 郭涵 | Method for treating household garbage and realizing co-production by using lime kiln |
| CN103398383A (en) * | 2013-08-23 | 2013-11-20 | 黎汉东 | Solid waste combustion system |
| CN104607440B (en) * | 2014-12-30 | 2016-08-31 | 北京高能时代环境技术股份有限公司 | A kind of based on biological dewatered life refuse processing method |
| CN108253434A (en) * | 2018-01-22 | 2018-07-06 | 白银成 | A kind of municipal pollution comprehensive treatment and utilization method, system |
| CN108954321A (en) * | 2018-07-06 | 2018-12-07 | 常熟浦发第二热电能源有限公司 | A kind of energy saving and environment friendly power generation by waste combustion technique |
-
2003
- 2003-01-05 CN CNB031126456A patent/CN1195688C/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| CN1468818A (en) | 2004-01-21 |
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