CN1230133A - Process for treating waste gases produced in organic waste incineration plant - Google Patents
Process for treating waste gases produced in organic waste incineration plant Download PDFInfo
- Publication number
- CN1230133A CN1230133A CN97197954A CN97197954A CN1230133A CN 1230133 A CN1230133 A CN 1230133A CN 97197954 A CN97197954 A CN 97197954A CN 97197954 A CN97197954 A CN 97197954A CN 1230133 A CN1230133 A CN 1230133A
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- CN
- China
- Prior art keywords
- waste gas
- waste
- boiler
- coal
- power plant
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/60—Separating
- F23G2201/601—Separating different calorific values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/201—Waste heat recuperation using the heat in association with another installation with an industrial furnace
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention concerns a process for treating waste gases which contain organic pollutant compounds and are produced in waste-incineration plants. Without being pre-treated, the waste gases are mixed with hot flue gases from the fossil fuel-burning furnaces of industrial boiler plants and so heated to above 1200 DEG C.
Description
The present invention relates to a kind of method of handling the waste gas that still contains organic hazardous compound that produces in the waste calcining facility.
In order to utilize the heat in the debirs, for example, house refuse and/or industrial refuse, at pyrolytic, the existing a series of well-known methods of vaporization, particularly incineration of waste field.
In fact, the Btu utilization of refuse is mainly at incinerator all the time, especially is equipped with to realize in the incinerator of grate firing chamber.
For example coal-burning power plant's flue gas of discharging is the same for the Industrial Boiler for the treatment of the waste gas that produces in this class incinerator and combustion of fossil fuels, carry out dedusting, and denitrogenation is also wanted in desulfurization mostly.
Its shortcoming is that the waste gas that garbage combustion device produces also contains the organic carbon hydrogen compound mostly because refuse is formed complexity, wherein also comprise highly toxic furans Yu Er Evil (Dioxine), can not be removed by above-mentioned waste gas purification facility, that is to say, can pollute the flue dust of having separated.Except influencing the flue dust utilization, also therefore requiring increases expensive separation equipment in the waste incineration facility, be active carbon filter mostly, is used for separating the hydrocarbon that still is present in the waste gas.
The objective of the invention is to simplify significantly technology and reduce greatly from garbage combustion device waste gas thus and separate hydrocarbon, particularly the expense of poisonous hydrocarbon.
According to the present invention, in the technology of mentioning of this paper beginning, realize above-mentioned target by following point-score, the waste gas that does not promptly separate harmful substance in advance mixes with the hot flue gases of one or more Industrial Boilers of combustion of fossil fuels, thereby waste gas is heated to temperature＞1200 ℃.
According to the present invention, the waste gas that garbage combustion device is produced is heated to more than 1200 ℃ in accordance with regulations, and at this moment contained organic compound is burned or be cleaved in waste gas.Show as result of the test, these highly toxic Er Evil and furans no longer can detect in the flue gas of the Industrial Boiler of the combustion of fossil fuels of the waste gas blending that incinerator produces, find unexpectedly that also when flue gas cools Er Evil and furans all can not form again.
With enter in the atmosphere after the waste gas of the waste calcining facility of the Industrial Boiler flue gas blending of combustion of fossil fuels will separate (dedusting, desulfurization, denitrogenation) through common harmful substance.
According to another characteristics of the inventive method, the waste gas that incinerator is produced mixes with the hot flue gases of cement plant roaster.
Reach under 2000 ℃ at the cement plant effluent gas temperature, the waste gas that garbage combustion device is produced is heated to needed temperature and does not have any problem for 1200 ℃.
On the other hand, the inventive method also demonstrates special advantage at economic aspect, and promptly without the refuse of processing processing, its heat can be the cement plant and directly utilizes.
Though up to now, the method that acts as a fuel jointly at cement plant input refuse is that refuse is directly burnt with the fuel mix that adds together, thereby require very high to the crudy of refuse, and about 30% refuse is admixed in a permission basically, impact with the manufacture of cement quality of avoiding technology is limited, but employing the inventive method, in the cement plant then successful realization complete segregated combustion refuse and fossil fuel.Contained heat generally discharges with cement production process from waste calcining facility between 800 to 1000 hot waste gas of spending via temperature and combines in the rubbish.The residue that waste calcining facility produces as mainly being slag, then remains in the waste calcining facility, according to the cement production process parameter of following at present, proves that these residues are harmless.
Thus, directly to mix be practical to the waste gas that produces in the incinerator combustion air required with being used for the cement plant combustion of fossil fuel.Adopt said method can guarantee after the combustion chamber, to obtain the mist that a kind of waste gas and flue gas mix.Self-evident, this waste gas can directly be introduced in the cement kiln in position.
According to the present invention, it is more far-reaching with the inventive method meaning that combines with the cement plant that its characteristics also show, the heat cooling air that is about to cool off clinker cooler is used as the combustion air of waste calcining facility.Because the EGT that clinker cooler is discharged is about 800 ℃, has formed the best combustion condition in waste calcining facility.If waste calcining facility is under the reducing condition promptly as the operation of waste gasification device, then at least a portion required heat that is used to vaporize is provided by the hot flue gases of cement kiln.Under this condition, still contain chemical bond heat in the waste gas that waste calcining facility produces, it will discharge by burning in cement kiln.
The residue that produces when incineration of waste or waste gasification generally can be used for as building the street, paves the way or is used with the additive of reconstituted form as cement itself.
According to the present invention, its characteristics also show, the hot waste gas that waste calcining facility produces can be blended in the hot flue gases of coal-burning power plant in a suitable manner, for the coal-burning power plant of configuration pulverized coal combustor and the power plant of configuration melt combustion chamber, coal-burning boiler for dry method slagging-off coal-burning boiler and wet method slagging-off, the effluent gas temperature level of its generation is after the waste gas with the waste calcining facility generation mixes, still be enough to be reached for and eliminate poisonous hydrocarbon, as 1200 ℃ of Er Evil and the desired minimum temperatures of furans.
For this reason, the lower space that the waste gas that waste calcining facility is produced is introduced coal-fired plant boiler suits, and reaches long especially residence time thus, thus make waste gas in coal-burning boiler also to long-time heating.
Particularly under the situation of coal-burning power plant, arrange thereafter exhaust gas side install a waste calcining facility as affiliated facility for the domination use, its meaning is that also the waste gas that waste calcining facility produces can directly be blended into the combustion air that is used for the coal-burning boiler burner, and introduces in the boiler of power plant whereby.
Also have other possibility, i.e. the waste gas of waste calcining facility generation is with dropping into boiler combustion through the cleaned coal of pulverizing the drying plant processing.Adopt this method also to have other advantage, i.e. the hot waste gas institute heat content of waste calcining facility generation can be used to the heating, drying cleaned coal.
The another kind of form of the waste gas of waste calcining facility being introduced coal-fired plant boiler is that waste gas is introduced in the coal gravity flow tube of coal pulverizer, introduce in the flue gas suction cylinder of pulverizing drying plant, can before pulverizer, introduce, also can utilize existing pulverizer air blast to introduce in the air channel before the pulverizer air channel or behind the air channel.
Reason for existing infrastructure, waste calcining facility can only be built the place away from the coal-burning power plant in, suitable method is that the hot flue gases of discharging is with the direct or indirect heat exchange of the air of the required usefulness of boiler combustion, as long as reach cooling, just can cancel the liner of the costliness that connects the waste gas connecting pipe between waste calcining facility and the boiler of power plant.
According to the present invention, its another characteristics are the parts that the refuse that waste calcining facility will burn must be sub-elected in advance the bulk high heating value, drop in the incinerator again and burn, and low-calorie fritter part is made it rotten through the operation of rotting earlier, drop into Industrial Boiler with fossil fuel then, preferably burn in the coal-fired plant boiler.
With single house refuse is example, by a drum sieve that is equipped with the inspection that is approximately 100 ± 40mm to divide device, with its branch hank high heating value part and low heat value part.The latter is contained the organic matter (eating surplus food in the dish) of many high-moistures and mainly is chemically inert fine dust.That part of rubbish major part that calorific value is high is timber, cardboard, paper, film, textile, and is polluted by big impurity.
The high heating value part is through sub-electing big impurity and directly or with pressure vessel transportation back drop into the roaster burning after magnetic separation.Transport if can be pressed into sphere, also will pulverize once more certainly for this reason.The flue gas of grate firing chamber is introduced coal-fired large-sized boiler and mobile with the flue gas of this boiler generation.Because chamber temperature is far above 1200 ℃, the harmful substance in the waste gas is decomposed and is evaporated, and separates in filter or washer together with above-mentioned waste gas by condensation or in distillation on the flue dust.
The low heat value part changes over to the Biostatic state to be strengthened in the device that rots, and the loss of rotting this moment is to form 30% CO
2And steam.The residue that rots is not pathogenic, and smell is atomic, and residual moisture content is 10-15%, stacks aerogenesis and produce seepage water all minimum, and this material is used to stack the cover layer of structure or uses as soil conditioner within the specific limits.In this rotten residue, also contain about 30% high heating value material, sub-elect by about 40 ± 20mm.The part that obtains according to the inventive method is pulverized oven dry directly with container traffic or be pressed into for example coal-burning power plant of ball feed track with crude fuel, finally burns in large-sized boiler.
According to different process scheme of the present invention, there is the heat of 55% house refuse efficiently to be utilized altogether approximately by power plant.Remaining have approximately 25% with a kind of permeation, seepage water atomic, therefore be suitable as most the material of stacking.Remaining 20% shows as the loss of rotting.The device that rots behind one platform is installed, is made the quality of the residue that rots bring up to the hybrid composting quality, it has been enlarged range of application greatly as soil conditioner.
Claims (12)
1. method that is used to handle the waste gas that still contains organic hazardous compound that waste calcining facility produces, it is characterized in that, waste gas need not be isolated harmful substance promptly and the hot flue gases blending of one or more Industrial Boilers discharges of combustion of fossil fuels in advance, thereby EGT is heated to＞1200 ℃.
2. according to the method for claim 1, it is characterized in that the hot flue gases blending of waste gas and cement kiln.
3. according to the method for claim 2, it is characterized in that the required combustion air of waste gas and the cement plant roaster of heat mixes, and is introduced into roaster.
4. according to the method for claim 3 or 4, it is characterized in that the hot-air that has at least a part of cement kiln clinker cooler to produce is made for the air of waste calcining facility burning usefulness.
5. according to the method for claim 1, it is characterized in that the waste gas that waste calcining facility is produced mixes with the heating flue gas phase of coal-burning power plant.
6. according to the method for claim 5, it is characterized in that, waste gas is introduced the lower space of boiler of power plant.
7. according to the method for claim 6, it is characterized in that, waste gas is blended in the combustion air that coal uses for burner, and introduces boiler of power plant whereby.
8. according to the method for claim 5, it is characterized in that, waste gas is sent into the boiler of power plant burning with cleaned coal.
9. method according to Claim 8 is characterized in that, the pulverizing drying equipment of waste gas through being used for cleaned coal introduced boiler of power plant.
10. according to the method one of in the claim 1 to 9, it is characterized in that the refuse that incinerator will be burned sub-elects bulk high heating value part and the low fritter part of calorific value.The former sends into waste calcining facility and burns, and the latter through the operation of rotting, mixes with the fossil fuel that boiler of feeding is used earlier then, burns in Industrial Boiler.
11. the method according to claim 10 is characterized in that, partly sends in the coal pulverizer of coal-burning power plant through the fritter of the operation of rotting or sends into usually in the Industrial Boiler with the fossil fuel igniting.
12. the method according to claim 10 or 11 is characterized in that, the granularity of bulk part is preferably 60 in the scope of 140mm, and the granularity of fritter part is preferably less than 60mm.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19628955.6 | 1996-07-18 | ||
| DE19628955 | 1996-07-18 | ||
| DE19706095A DE19706095C2 (en) | 1997-02-17 | 1997-02-17 | Process for the production of cement |
| DE19706095.1 | 1997-02-17 | ||
| DE19707884.2 | 1997-02-27 | ||
| DE19707884A DE19707884A1 (en) | 1997-02-27 | 1997-02-27 | Flue gas treatment from waste incineration plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1230133A true CN1230133A (en) | 1999-09-29 |
| CN1128654C CN1128654C (en) | 2003-11-26 |
Family
ID=27216478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97197954A Expired - Fee Related CN1128654C (en) | 1996-07-18 | 1997-07-18 | Process for treating waste gases produced in organic waste incineration plant |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0912230A1 (en) |
| CN (1) | CN1128654C (en) |
| AU (1) | AU736661B2 (en) |
| WO (1) | WO1998003250A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2156095B1 (en) * | 1999-12-07 | 2002-03-01 | Gil Alfredo Peris | HIGH-THERMAL RESISTANCE ORGANIC VOLATILE DIOXINES AND TOXIC CLEANERS. |
| GB2359125A (en) * | 2000-02-08 | 2001-08-15 | Green Island Environmental Tec | Integrated cement production and waste disposal facility |
| BG66878B1 (en) * | 2014-01-13 | 2019-05-15 | Атанасов Ковачки Христо | Method for purification from dioxins and furans of flue gases resulting from incineration of household waste |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0141932A3 (en) * | 1983-08-25 | 1986-11-26 | Klöckner-Humboldt-Deutz Aktiengesellschaft | Method and apparatus for the pollutant-free disposal of noxious and waste materials with a low calorific value, esp. refuse, by burning |
| FR2569826B1 (en) * | 1984-08-30 | 1989-06-16 | Huret Christian | INCINERATOR-PYROLYZER |
| DE3504810A1 (en) * | 1985-02-13 | 1986-08-14 | Hoelter Heinz | Process for the thermal reaction of dioxin |
| WO1988005494A1 (en) * | 1987-01-22 | 1988-07-28 | Saarbergwerke Aktiengesellschaft | Coal combustion with a fluidized incineration bed |
| WO1993000982A1 (en) * | 1991-07-12 | 1993-01-21 | Maschinen- Und Anlagenbau Grimma Gmbh | Process and device for detoxifying the exhaust gas from rubbish incineration plants |
-
1997
- 1997-07-18 CN CN97197954A patent/CN1128654C/en not_active Expired - Fee Related
- 1997-07-18 EP EP97935438A patent/EP0912230A1/en not_active Withdrawn
- 1997-07-18 WO PCT/DE1997/001515 patent/WO1998003250A1/en not_active Application Discontinuation
- 1997-07-18 AU AU38460/97A patent/AU736661B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU3846097A (en) | 1998-02-10 |
| CN1128654C (en) | 2003-11-26 |
| WO1998003250A1 (en) | 1998-01-29 |
| EP0912230A1 (en) | 1999-05-06 |
| AU736661B2 (en) | 2001-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGTAI INTERNATIONAL INVESTMENT CO., LTD. Free format text: FORMER OWNER: HAINTZ HOHLT Effective date: 20060922 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060922 Address after: Room 2401, Jing Arts crafts emporium, 27 Zhong Jie street, Chai Wan, Hongkong, China Patentee after: Guangtai International Investment Limited Address before: Gerald Beck, the Federal Republic of Germany Patentee before: Heintz Hult |
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| ASS | Succession or assignment of patent right |
Owner name: WEN XIANGYUAN Free format text: FORMER OWNER: GUANGTAI INTERNATIONAL INVESTMENT CO., LTD. Effective date: 20090417 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090417 Address after: Beijing City, Haidian District Willow Road Everbright Garden Patentee after: Wen Xiangyuan Address before: Room 2401, Jing Arts crafts emporium, 27 Zhong Jie street, Chai Wan, Hongkong, China Patentee before: Guangtai International Investment Limited |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031126 Termination date: 20140718 |
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| EXPY | Termination of patent right or utility model |