CN105823062A - Desulfurization-deacidification system of clean incineration device for household garbage - Google Patents
Desulfurization-deacidification system of clean incineration device for household garbage Download PDFInfo
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- CN105823062A CN105823062A CN201610270052.XA CN201610270052A CN105823062A CN 105823062 A CN105823062 A CN 105823062A CN 201610270052 A CN201610270052 A CN 201610270052A CN 105823062 A CN105823062 A CN 105823062A
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- CN
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- Prior art keywords
- sodium bicarbonate
- auger
- storehouse
- bin
- flue gas
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- 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
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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
- F23G5/44—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
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- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
- B01D2258/0291—Flue gases from waste incineration plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/40—Intercepting solids by cyclones
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to a desulfurization-deacidification system of a clean incineration device for household garbage, and aims to reduce noxious gas emission in a household garbage incineration process. According to the technical scheme, the system comprises a sodium bicarbonate storage bin, a start-up material bin, a material return bin and a reaction tower, wherein sodium bicarbonate in the sodium bicarbonate storage bin is conveyed to the start-up material bin; sodium bicarbonate in the start-up material bin is conveyed to a superfine mil for milling into more than 500 meshes of superfine powder; the superfine powder is conveyed to a material return screw conveyor; relatively coarse particles are separated by a cyclone separator from flue gas which is outputted from the reaction tower, and the separated relatively coarse particles in the flue gas drop to the material return screw conveyor at the bottom of the material return bin for being mixed with the superfine powder; finally, the mixture is conveyed by the material return screw conveyor to the reaction tower; and when the quantity of returned materials exceeds the conveying capacity of the material return, the redundant returned materials are conveyed by an overflow screw conveyor to a large ash bin through a public ash conveying system.
Description
Technical field
The present invention relates to field of Environment Protection, specifically the desulfurization deacidification system of one way of life junk-free incinerator.
Background technology
At present, waste incineration and generating electricity, with the advantage of its " innoxious, minimizing, resource ", has obtained rapid development throughout the country.
But, owing to Refuse Incineration Process can produce substantial amounts of harmful gas, including sulfur dioxide, hydrogen chloride, nitrogen oxides, carbon monoxide, two English, heavy metal, dust etc..At present, domestic waste incineration and generating electricity industry substantially takes semi-dry desulphurization and dry desulfurization both technology to remove sulfur dioxide and hydrogen chloride.Desulfurizing agent is quick lime or Calx.But the removal efficiency of both desulfurization technology is unsatisfactory.Basic about 90%, can guarantee that sulfur dioxide emissioning concentration is at 100mg/Nm reluctantly3Below.And the consumption of desulfurizing agent is bigger.And coal-burning power plant proposes the target of minimum discharge at present, sulfur dioxide emissioning concentration to be dropped to 35mg/Nm3Below.Therefore, how to improve equipment, improve the removal efficiency of sulfur dioxide, reduce the discharge of harmful substance, be the target that scientific and technical personnel make great efforts in the industry.
Summary of the invention
It is an object of the invention to overcome the deficiency in above-mentioned background technology, it is provided that the desulfurization deacidification system of a kind of supporting house refuse cleaning incinerator, this desulfurization deacidification system can reduce the discharge of harmful gas in incineration process of domestic garbage, have the feature of energy-conserving and environment-protective.
Present invention employs techniques below scheme:
The desulfurization deacidification system of one way of life junk-free incinerator, it is characterised in that this system includes:
Sodium bicarbonate warehouse: be delivered to start feed bin by the sodium bicarbonate in storehouse by storehouse pumping system；
Start feed bin: by frequency conversion auger, the sodium bicarbonate in storehouse is delivered to connected superfine pulverizer, by connected superfine pulverizer by levigate for the sodium bicarbonate micropowder to ＞ 500 mesh, then micropowder is delivered to returning charge auger；
Returning charge storehouse: receive the relatively coarseparticulate (including part unreacted sodium bicarbonate completely) (hereinafter referred to as returning charge) that cyclone separator is separated in the middle of the flue gas that reaction tower exports；Relatively coarseparticulate in flue gas drops on the returning charge auger return bin bottom and mixes with micropowder, is finally delivered to reaction tower by returning charge auger；When returning charge amount is beyond the conveying capacity of returning charge auger, unnecessary returning charge is delivered to big ash silo by overflow auger by public ash-transmission system.
Reaction tower: receive and process the flue gas of boiler input；The bulky grain thing dropped in flue gas is by the power frequency auger timing output bottom reaction tower, and remaining flue gas transports to cyclone separator.
Described bulky grain thing is delivered to big ash silo by the timing of power frequency auger.
The top of described sodium bicarbonate warehouse is provided with pneumatic gate valve, sodium bicarbonate warehouse cleaner unit and dedusting fan.
The top of described startup feed bin is provided with pneumatic gate valve, cleaner unit and dedusting fan.
Described sodium bicarbonate warehouse and start feed bin and input compressed air respectively to keep slight positive pressure state, prevents the sodium bicarbonate moisture absorption in storehouse from hardening.
Described compressed air by oil water separator through removing oil, processed.
The workflow of the present invention is: sodium bicarbonate (＜ 200 mesh) squeezes into sodium bicarbonate warehouse 6 by ash tank car, then sent into by the storehouse transport pump system of warehouse bottom and start feed bin 3, send into connected superfine pulverizer 5 by starting the frequency conversion auger 4 of feed bin bottom again, wear into the micropowder of ＞ 500 mesh and enter and enter reaction tower 1 after returning charge auger 19 mix with returning charge and the next flue gas of boiler carries out desulfurization deacidification reaction.Bulky grain thing in flue gas falls into and is transported to the public ash-transmission system big ash silo of entrance by the timing of power frequency auger bottom reaction tower；Enter in the particulate matter of cyclone separator with flue gas output-response tower, the thickest granule falls into returning charge storehouse and enters and return entrance reaction tower 1 after the returning charge auger of bin bottom mixes with sodium bicarbonate after being separated by cyclone separator.Fine particle in flue gas then enters sack cleaner with flue gas and removes.
The invention has the beneficial effects as follows: sodium bicarbonate can react with the deleterious acidic composition in flue gas, thus the sulfur dioxide being greatly lowered in flue gas and hydrogen chloride content (desulfuration efficiency can reach more than 98%, the hourly value of sulfur dioxide and hydrogen chloride can be dropped to 10mg/Nm3Below)；There is significant environmental protection benefit.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention.
Figure has: 1. reaction tower；2. returning charge storehouse；3. start feed bin；4. frequency conversion auger (auger driven by frequency conversion motor)；5. connected superfine pulverizer；6. sodium bicarbonate warehouse；7. measuring chute；8. storehouse pumping system inlet valve；9. storehouse pumping system outlet valve；10. start dust remover for storage bin；11. pneumatic gate valves；12. dedusting fans；13. oil water separators；14. sodium bicarbonate storehouse cleaner units；16. dedusting fans；18. sodium bicarbonate conveyance conduits；19. returning charge augers；20. power frequency augers (by the motor-driven auger of power frequency)；21. cyclone separator；22. overflow augers.
Detailed description of the invention
Below in conjunction with Figure of description, the invention will be further described, but the invention is not limited in following example.
The key point of the present invention: 1, solve the problem that the easy moisture absorption of sodium bicarbonate hardens；2, the contradictory problems between conveying and the fineness of sodium bicarbonate is solved.
The desulfurization deacidification system of house refuse shown in the drawings cleaning incinerator, including:
Sodium bicarbonate warehouse 6: be provided with storehouse transport pump system bottom sodium bicarbonate warehouse and (include measuring chute 7；Storehouse pumping system inlet valve 8；Storehouse pumping system outlet valve 9；Sodium bicarbonate conveyance conduit 18 etc.), sodium bicarbonate can be transported to start feed bin by storehouse transport pump system.The top of sodium bicarbonate warehouse is provided with pneumatic gate valve 15, cleaner unit 14 and dedusting fan 16；During feeding, pneumatic gate valve 15, dedusting fan 16 are opened, and are beneficial to the ash smooth feeding of tank car, prevent airborne dust simultaneously during feeding, protect surrounding enviroment；The complete pneumatic gate valve of feeding 15, dedusting fan 16 are closed, and are beneficial to warehouse and seal.Described sodium bicarbonate warehouse also inputs compressed air to keep slight positive pressure state, prevents the sodium bicarbonate moisture absorption in storehouse from hardening；Described compressed air enters sodium bicarbonate warehouse after oil water separator removing oil, water.
Start feed bin 3: start bin bottom and be provided with frequency conversion auger 4, by frequency conversion auger 4, the sodium bicarbonate of storage can be delivered to connected superfine pulverizer 5, by connected superfine pulverizer by levigate for the sodium bicarbonate micropowder to ＞ 500 mesh, then micropowder is delivered to returning charge auger 19.The top of described startup feed bin is provided with pneumatic gate valve 11, cleaner unit 10 and dedusting fan 12；During feeding, pneumatic gate valve 11, dedusting fan 12 are opened, and are beneficial to the storehouse smooth feeding of transport pump system, prevent airborne dust during feeding simultaneously, protect surrounding enviroment；The complete pneumatic gate valve of feeding 11, dedusting fan 12 are closed, and are beneficial to warehouse and seal.Described startup feed bin also inputs compressed air to keep slight positive pressure state, prevents the sodium bicarbonate moisture absorption in storehouse from hardening；Described compressed air enters startup feed bin after oil water separator 13 removes oil, water.
Returning charge storehouse 2: return bin bottom and be provided with returning charge auger 19, top connection cyclone separator 21；Enter cyclone separator from the flue gas of reaction tower 1 output and carry out returning charge separating treatment；Fine particle in flue gas is discharged from cyclone separator top with flue gas, after entrance sack cleaner removes, the ash discharge auger bottom sack cleaner is delivered to big ash silo；Relatively coarseparticulate in flue gas then falls to the returning charge auger passed through bottom it in returning charge storehouse after cyclone separator separation and mixes with micropowder, in being finally delivered to reaction tower by returning charge auger processing flue gas, redundance is then delivered to big ash silo by overflow auger 22 by public defeated ash system (conventional equipment) system.
Reaction tower 1: receive and process the flue gas of boiler input；Bulky grain thing in flue gas directly drops to by power frequency auger 20 timing output bottom reaction tower bottom reaction tower, and all flue gases are transported to cyclone separator and carried out returning charge separating treatment.
In figure, M is the power (motor) of each auger.
In the present invention, all devices and device are existing maturing appts；Thus the most carefully state.
Claims (6)
1. the desulfurization deacidification system of one way of life junk-free incinerator, it is characterised in that this system includes:
Sodium bicarbonate warehouse (6): be delivered to start feed bin by the sodium bicarbonate in storehouse by storehouse pumping system；
Start feed bin (3): by frequency conversion auger (4), the sodium bicarbonate in storehouse is delivered to connected superfine pulverizer (5), by connected superfine pulverizer by levigate for the sodium bicarbonate micropowder to ＞ 500 mesh, then micropowder is delivered to returning charge auger (19)；
Returning charge storehouse (2): receive cyclone separator (21) isolated relatively coarseparticulate in the middle of the flue gas that reaction tower (1) exports；Relatively coarseparticulate in flue gas drops on the returning charge auger return bin bottom and mixes with micropowder, is finally delivered to reaction tower by returning charge auger；When returning charge amount is beyond the conveying capacity of returning charge auger, unnecessary returning charge is delivered to big ash silo by overflow auger (22) by public ash-transmission system；
Reaction tower (1), receives and processes the flue gas of boiler input；The bulky grain thing dropped in flue gas is exported by the power frequency auger (20) bottom reaction tower, and remaining flue gas transports to cyclone separator.
The desulfurization deacidification system of house refuse the most according to claim 1 cleaning incinerator, it is characterised in that: described bulky grain thing is delivered to public ash-transmission system by the timing of power frequency auger, finally enters big ash silo.
The desulfurization deacidification system of house refuse the most according to claim 2 cleaning incinerator, it is characterised in that: the top of described sodium bicarbonate warehouse is provided with pneumatic gate valve (15), sodium bicarbonate storehouse cleaner unit (14) and dedusting fan (16).
The desulfurization deacidification system of house refuse the most according to claim 3 cleaning incinerator, it is characterised in that: the top of described startup feed bin is provided with pneumatic gate valve (11), cleaner unit (10) and dedusting fan (12).
The desulfurization deacidification system of house refuse the most according to claim 4 cleaning incinerator, it is characterised in that: described sodium bicarbonate warehouse and start feed bin and input compressed air respectively to keep slight positive pressure state in storehouse, prevent the sodium bicarbonate moisture absorption in storehouse from hardening.
House refuse the most according to claim 5 cleaning incinerator desulfurization deacidification system, it is characterised in that: described compressed air by oil water separator through removing oil, processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270052.XA CN105823062B (en) | 2016-04-27 | 2016-04-27 | A kind of desulfurization deacidification system of house refuse cleaning incinerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270052.XA CN105823062B (en) | 2016-04-27 | 2016-04-27 | A kind of desulfurization deacidification system of house refuse cleaning incinerator |
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| Publication Number | Publication Date |
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| CN105823062A true CN105823062A (en) | 2016-08-03 |
| CN105823062B CN105823062B (en) | 2018-03-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144148A (en) * | 2017-07-04 | 2017-09-08 | 洁华控股股份有限公司 | A kind of feed device administered for aluminium industry gas melting furnace flue |
| CN108392976A (en) * | 2018-05-21 | 2018-08-14 | 宁波市北仑环保固废处置有限公司 | A kind of sodium bicarbonate automation deacidification system and its process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2437992Y (en) * | 2000-08-22 | 2001-07-04 | 清华大学 | Comprehensive tail gas purifying device for refuse incineration |
| CN101862590A (en) * | 2010-06-30 | 2010-10-20 | 马鞍山钢铁股份有限公司 | Desulfuration process for sintering flue gas |
| JP5350996B2 (en) * | 2009-11-25 | 2013-11-27 | バブコック日立株式会社 | Oxygen combustion system exhaust gas treatment equipment |
| CN103446860A (en) * | 2013-08-30 | 2013-12-18 | 哈尔滨金大环境工程有限公司 | Flue gas desulfurization purification system |
| CN204735112U (en) * | 2015-06-01 | 2015-11-04 | 杭州绿能环保发电有限公司 | Flue gas desulfurization deacidification equipment with feeder apparatus is thrown in impact |
| CN205717236U (en) * | 2016-04-27 | 2016-11-23 | 杭州绿能环保发电有限公司 | The desulfurization deacidification system of one way of life junk-free incinerator |
-
2016
- 2016-04-27 CN CN201610270052.XA patent/CN105823062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2437992Y (en) * | 2000-08-22 | 2001-07-04 | 清华大学 | Comprehensive tail gas purifying device for refuse incineration |
| JP5350996B2 (en) * | 2009-11-25 | 2013-11-27 | バブコック日立株式会社 | Oxygen combustion system exhaust gas treatment equipment |
| CN101862590A (en) * | 2010-06-30 | 2010-10-20 | 马鞍山钢铁股份有限公司 | Desulfuration process for sintering flue gas |
| CN103446860A (en) * | 2013-08-30 | 2013-12-18 | 哈尔滨金大环境工程有限公司 | Flue gas desulfurization purification system |
| CN204735112U (en) * | 2015-06-01 | 2015-11-04 | 杭州绿能环保发电有限公司 | Flue gas desulfurization deacidification equipment with feeder apparatus is thrown in impact |
| CN205717236U (en) * | 2016-04-27 | 2016-11-23 | 杭州绿能环保发电有限公司 | The desulfurization deacidification system of one way of life junk-free incinerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144148A (en) * | 2017-07-04 | 2017-09-08 | 洁华控股股份有限公司 | A kind of feed device administered for aluminium industry gas melting furnace flue |
| CN108392976A (en) * | 2018-05-21 | 2018-08-14 | 宁波市北仑环保固废处置有限公司 | A kind of sodium bicarbonate automation deacidification system and its process |
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| Publication number | Publication date |
|---|---|
| CN105823062B (en) | 2018-03-23 |
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