CN105664704A - Semidry flue gas desulfurization dust collector - Google Patents
Semidry flue gas desulfurization dust collector Download PDFInfo
- Publication number
- CN105664704A CN105664704A CN201610220792.2A CN201610220792A CN105664704A CN 105664704 A CN105664704 A CN 105664704A CN 201610220792 A CN201610220792 A CN 201610220792A CN 105664704 A CN105664704 A CN 105664704A
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- tower
- desulfurization reaction
- reaction tower
- flue gas
- desulfurizing agent
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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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (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 discloses a semidry flue gas desulfurization and dust removal device, which comprises a desulfurization reaction tower, wherein the top of the desulfurization reaction tower is communicated with a flue gas outlet of a boiler flue gas discharge device through a pipeline, the top of the desulfurization reaction tower is also provided with a desulfurizer conveying port and a circulating ash conveying port, the middle upper part of the desulfurization reaction tower is provided with a spraying device for spraying a reaction reagent into the tower body, and a combined venturi tube is arranged in the tower body between the spraying device and the top; the bottom of the desulfurization reaction tower is provided with a desulfurization tower ash bucket system which is communicated with a circulating ash conveying port through an ash conveying pipeline; a cloth bag dust removal mechanism with a ring tower body outer wall is arranged outside the desulfurization reaction tower above the desulfurization tower ash bucket system, and an air outlet of the cloth bag dust removal mechanism is communicated with a chimney through an air outlet pipeline. The invention has simple structure, greatly reduces the equipment investment and the occupied area, reduces the energy consumption and the operating cost, and greatly improves the dust removal and desulfurization efficiency.
Description
Technical field
The present invention relates to industrial dedusting environmental protection equipment, particularly a kind of desulfurating dust removing device for flue gas based on semidry process.
Background technology
Flue gas desulfurization refers to the oxysulfide in elimination industrial waste gas, and conventional fume desulphurization method is divided into wet processing, dry process and semidry process. Flue-gas dust-removing and desulfurization in domestic and international dry method, semidry process generally adopts the equipment such as desulfurizing tower, flue gas conditioning combination type cyclone dust removal and combination type Venturi tube to complete dust-removal and desulfurizing operation after coupling at present, coupling Structure of need part and pipeline is connected, there is the shortcomings such as function singleness, resistance is big, structure is complicated, floor space is big, equipment investment is big, energy consumption is high, efficiency of dust collection is low, operating cost is high in this kind of split modular structure.
Summary of the invention
The technical issues that need to address of the present invention are to provide the integrated semi-dry process flue gas desulphurization dust arrester that a kind of floor space is little, energy consumption is low, equipment investment is few, operating cost is low and efficiency of dust collection is high.
For solving above-mentioned technical problem, the technical solution used in the present invention is as follows.
Semi-dry process flue gas desulphurization dust arrester, including desulfurization reaction tower, the top of the described desulfurization reaction tower exhanst gas outlet by pipeline communication boiler smoke tapping equipment, desulphurization reaction top of tower is additionally provided with desulfurizing agent delivery port and circulating ash delivery port, the middle and upper part of desulfurization reaction tower arranges the sprayer unit spraying reaction reagent in oriented tower body, is provided with combination Venturi tube in the tower body between sprayer unit and top; The bottom of desulfurization reaction tower is provided with desulfurizing tower ash bucket system, and desulfurizing tower ash bucket system passes through ash conveying pipe communication loop ash delivery port; Desulfurization reaction tower above desulfurizing tower ash bucket system is outside equipped with the bag-type dust mechanism of ring tower body outer wall, and the air outlet of bag-type dust mechanism connects chimney by wind pipe.
Above-mentioned semi-dry process flue gas desulphurization dust arrester, described sprayer unit includes the two fluid spray rifles arranging desulfurization reaction tower, and pipeline communication technique water source is passed through in one end of two fluid spray rifles, and the other end of two fluid spray rifles passes through pipeline communication high-pressure air source.
Above-mentioned semi-dry process flue gas desulphurization dust arrester, described desulfurizing agent delivery port passes through pipeline communication desulfurizing agent feedway, desulfurizing agent feedway includes desulfurizing agent storehouse, the top in desulfurizing agent storehouse is provided with top, storehouse cleaner unit, the bottom in desulfurizing agent storehouse is provided with bottom of the reservior ash bucket system, and the discharging opening of bottom of the reservior ash bucket system passes through pipeline communication desulfurizing agent delivery port.
Above-mentioned semi-dry process flue gas desulphurization dust arrester, the pulsation deashing device being connected by three-way valve it is additionally provided with between described bag-type dust mechanism and wind pipe, pulsation deashing device includes flutter valve, pulsation blower fan, blower motor and back suction airduct, the external port of flutter valve entrance connection three-way valve, flutter valve another port connection back suction airduct.
Owing to have employed above technical scheme, the invention technological progress is as follows.
Flue gas desulfurization, dedusting, modified implement are arranged in a container by the present invention, desulfurization and dedusting operation is completed by arranging multipolarization technical pattern in this container, simple in construction, equipment investment and floor space are all greatly decreased, reduce energy consumption and operating cost, and substantially increase dedusting and desulfuration efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of sprayer unit of the present invention;
Fig. 3 is the structural representation of desulfurizing agent feedway of the present invention;
Fig. 4 is the structural representation of pulsation deashing device of the present invention.
Wherein: 1. boiler smoke entrance, 2. desulfurizing agent delivery port, 3. circulating ash delivery port, 4. combination Venturi tube, 5. two fluid spray rifle, 6. desulfurization reaction tower, 7. desulfurizing tower ash bucket system, 8. filter cloth bag, 9. three-way valve, 10. pulsation deashing device, 11. wind pipe, 12. desulfurizing agent storehouse, 13. top, storehouse cleaner unit, 14. bottom of the reservior ash bucket system, 15. desulfurizing agent entrance, 16. fresh water (FW) entrance, 17. high-pressure hydraulic pump, 18. water ga(u)ge, 19. high-pressure air source, 20. air-introduced machine, 21. chimney, 22. pulsation blower fan, 23. blower motor, 24. back suction airduct, 25. flutter valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
A kind of semi-dry process flue gas desulphurization dust arrester, its structure is as it is shown in figure 1, include desulfurization reaction tower 6, sprayer unit, desulfurizing tower ash bucket system 7, bag-type dust mechanism, desulfurizing agent feedway and chimney 21.
The top of desulfurization reaction tower 6 exhanst gas outlet by pipeline communication boiler smoke tapping equipment, namely boiler smoke is sent into desulphurization reaction top of tower by the boiler smoke entrance 1 from Fig. 1.
The top of desulfurization reaction tower 6 is provided with desulfurizing agent delivery port 2 and circulating ash delivery port 3. Desulfurizing agent delivery port 2 is by pipeline communication desulfurizing agent feedway, for carrying desulfurizing agent in desulfurization reaction tower; Circulating ash delivery port 3 is by pipeline communication desulfurizing tower ash bucket system 7, for carrying circulating ash, circulating ash to comprise the activated recycling circulation flying dust of band and Boiler Ash in desulfurization reaction tower.
The top of desulfurization reaction tower 6 is provided with combination Venturi tube 4, for boiler smoke, desulfurizing agent, circulating ash are polymerized under diffusion concentration diffusion so that the mixed flue gas of polymerization uniformly enters in desulfurization reaction tower and reacts.
Sprayer unit is arranged on the middle and upper part of desulfurization reaction tower 6, for spraying reaction reagent in tower body. The structure of sprayer unit is as shown in Figure 2, including the two fluid spray rifles 5 arranging desulfurization reaction tower 6, pipeline communication technique water source is passed through in one end of two fluid spray rifles, after technique water source enters pipeline from fresh water (FW) entrance 16, at the flows by action of high-pressure hydraulic pump 17 to two fluid spray rifles 5, this fresh water (FW) pipeline is additionally provided with water ga(u)ge 18, is used for recording discharge; The other end of two fluid spray rifles passes through pipeline communication high-pressure air source 19.
The bottom of desulfurization reaction tower 6 is provided with desulfurizing tower ash bucket system 7, and desulfurizing tower ash bucket system 7 is by ash conveying pipe communication loop ash delivery port 3.Desulfurizing tower ash bucket system 7 is made up of ash bucket and helix transporting device, and helix transporting device sets two outlets: material mouth and circulating ash delivery port, and wherein circulating ash conveying is delivered to the circulating ash delivery port 3 of desulfurization reaction tower by roots blower and compression air.
Bag-type dust mechanism is arranged on above desulfurizing tower ash bucket system 7, and arranges around desulfurization reaction tower 6 outer wall, and for removing the dust in flue gas, the air outlet of bag-type dust mechanism connects chimney 21 by wind pipe 11, and wind pipe 11 is provided with air-introduced machine 20. Bag-type dust mechanism is locellus, branch mailbox filtration, is provided with filter cloth bag 8 in each chamber, and filtered version is that inner filtration combines outer filtered version.
Being additionally provided with the pulsation deashing device 10 being connected by three-way valve 9 between bag-type dust mechanism and wind pipe, pulsation deashing device adopts back suction and blowback form, pulsation deashing and circulated air purge mode to carry out deashing process. As shown in Figure 4, including flutter valve 25, pulsation blower fan 22, blower motor 23 and back suction airduct 24, the external port of flutter valve entrance connection three-way valve, flutter valve another port connects back suction airduct to the structure of pulsation deashing device 10. The malleation wind regime that wherein circulated air is the clean air source after utilizing bag-type dust mechanism to filter and the indoor synthermal gas of dedusting mechanism is exported by air-introduced machine, adopt the structure the circulated air of supply it can be avoided that flue-gas temperature is variant and the cloth bag condensation trouble that causes.
Three-way valve is arranged between bag-type dust mechanism and wind pipe, and the lower port of three-way valve connects every chamber exhanst gas outlet of bag-type dust mechanism, and the upper port of three-way valve connects wind pipe, and the side ports of three-way valve connects flutter valve entrance. Three-way valve is made up of two valves, and valve is opened and closedown by high-pressure air source by cylinder; During work, deashing valve is open mode, and draft tube valve is closed mode; During deashing, deashing valve is closed, and draft tube valve is open mode, and the malleation wind regime that draft is exported by air-introduced machine imports.
In the present invention, the desulfurizing agent delivery port 2 of desulfurization reaction tower is by pipeline communication desulfurizing agent feedway, the structure of desulfurizing agent feedway is as shown in Figure 3, including desulfurizing agent storehouse 12, the top in desulfurizing agent storehouse 12 is provided with top, storehouse cleaner unit 13, the bottom in desulfurizing agent storehouse 12 is provided with bottom of the reservior ash bucket system 14, and the discharging opening of bottom of the reservior ash bucket system 14 passes through pipeline communication desulfurizing agent delivery port 2, is sent into after treatment in desulfurization reaction tower by the desulfurizing agent entering desulfurizing agent storehouse from desulfurizing agent entrance.
The technological process of the present invention is: the boiler smoke of the harmful substances such as dust-laden sulfur-bearing enters in desulfurization reaction tower, be in the desulfurizing agent being conveyed in tower and circulating ash mixing at tower top after, it is polymerized through combination Venturi tube, the mixed flue gas of polymerization reacts even in desulfurization reaction tower, two fluid spray rifles spray atomized water in tower, atomized water and flue gas, desulfurizing agent, the particulate matter carrier of high concentration is formed with activated circulating ash after mixing, particulate matter carrier surface area is big, gas, Gu, great reactivity and reaction table area is had between liquid three, heat and mass is very strong, formed and remove SO in flue gas2Ideal conditions, and make desulfurized effect reach optimum discharge standard by the response time arranging desulfurization reaction tower. Flue gas after desulfurization enters bag-type dust mechanism and carries out dust removal process, and by deashing device of pulsing, dust is sent in desulfurizing tower ash bucket system, a dust stratification part in desulfurization reaction tower ash bucket system returns desulfurization reaction tower as circulating ash, and another part is transported by helix transporting device.
Claims (4)
1. semi-dry process flue gas desulphurization dust arrester, it is characterized in that: include desulfurization reaction tower (6), the top of described desulfurization reaction tower (6) exhanst gas outlet by pipeline communication boiler smoke tapping equipment, desulfurization reaction tower (6) top is additionally provided with desulfurizing agent delivery port (2) and circulating ash delivery port (3), the middle and upper part of desulfurization reaction tower (6) arranges the sprayer unit spraying reaction reagent in oriented tower body, is provided with combination Venturi tube (4) in the tower body between sprayer unit and top;The bottom of desulfurization reaction tower (6) is provided with desulfurizing tower ash bucket system (7), and desulfurizing tower ash bucket system (7) is by ash conveying pipe communication loop ash delivery port (3); The desulfurization reaction tower (6) of desulfurizing tower ash bucket system (7) top is outside equipped with the bag-type dust mechanism of ring tower body outer wall, and the air outlet of bag-type dust mechanism is by wind pipe (11) connection chimney (21).
2. semi-dry process flue gas desulphurization dust arrester according to claim 1, it is characterized in that: described sprayer unit includes arranging two fluid spray rifles (5) of desulfurization reaction tower (6), pipeline communication technique water source is passed through in one end of two fluid spray rifles, and the other end of two fluid spray rifles passes through pipeline communication high-pressure air source (19).
3. semi-dry process flue gas desulphurization dust arrester according to claim 1, it is characterized in that: described desulfurizing agent delivery port (2) is by pipeline communication desulfurizing agent feedway, desulfurizing agent feedway includes desulfurizing agent storehouse (12), the top in desulfurizing agent storehouse (12) is provided with top cleaner unit, storehouse (13), the bottom in desulfurizing agent storehouse (12) is provided with bottom of the reservior ash bucket system (14), and the discharging opening of bottom of the reservior ash bucket system (14) passes through pipeline communication desulfurizing agent delivery port (2).
4. semi-dry process flue gas desulphurization dust arrester according to claim 1, it is characterized in that: between described bag-type dust mechanism and wind pipe, be additionally provided with the pulsation deashing device (10) being connected by three-way valve (9), pulsation deashing device (10) includes flutter valve (25), pulsation blower fan (22), blower motor (23) and back suction airduct (24), the external port of flutter valve entrance connection three-way valve, flutter valve another port connection back suction airduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610220792.2A CN105664704B (en) | 2016-04-11 | 2016-04-11 | Semidry flue gas desulfurization dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610220792.2A CN105664704B (en) | 2016-04-11 | 2016-04-11 | Semidry flue gas desulfurization dust collector |
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| CN105664704A true CN105664704A (en) | 2016-06-15 |
| CN105664704B CN105664704B (en) | 2019-02-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731286A (en) * | 2016-11-23 | 2017-05-31 | 无锡市国松环保机械有限公司 | Integration dust-removing desulphurization system |
| CN109200794A (en) * | 2018-11-12 | 2019-01-15 | 中泽银海（北京）环境工程有限公司 | A kind of aluminium electroloysis overhaul slag harmlessness semidry method flue gas processing device and method |
| CN112221340A (en) * | 2020-10-20 | 2021-01-15 | 威海市正大环保设备股份有限公司 | Integrated method for desulfurizing and dedusting by humidifying circulation semidry method outside tower |
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2016
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Patent Citations (5)
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| JP2000107540A (en) * | 1998-10-05 | 2000-04-18 | Wave:Kk | Waste gas treatment system |
| CN201220149Y (en) * | 2008-07-09 | 2009-04-15 | 施志鸣 | Quenching and tempering, desulfurizing and dedusting integrated device for kiln flue gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731286A (en) * | 2016-11-23 | 2017-05-31 | 无锡市国松环保机械有限公司 | Integration dust-removing desulphurization system |
| CN109200794A (en) * | 2018-11-12 | 2019-01-15 | 中泽银海（北京）环境工程有限公司 | A kind of aluminium electroloysis overhaul slag harmlessness semidry method flue gas processing device and method |
| CN112221340A (en) * | 2020-10-20 | 2021-01-15 | 威海市正大环保设备股份有限公司 | Integrated method for desulfurizing and dedusting by humidifying circulation semidry method outside tower |
| CN112221340B (en) * | 2020-10-20 | 2021-09-14 | 威海市正大环保设备股份有限公司 | Integrated method for desulfurizing and dedusting by humidifying circulation semidry method outside tower |
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| CN105664704B (en) | 2019-02-22 |
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Effective date of registration: 20220525 Address after: Room 806, United finance building, No. 8, financial 8th Street, economic development zone, Wuxi, Jiangsu 214000 Patentee after: Jiangsu xilanke Environmental Engineering Technology Co.,Ltd. Address before: No. 131, zhoutangli, mojiazhuang village, Guangyi street, Liangxi District, Wuxi City, Jiangsu Province, 214011 Patentee before: Shi Lei |
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