CN201711088U - Mixed mode wet-process fire coal flue gas desulphurization dust removal tower - Google Patents
Mixed mode wet-process fire coal flue gas desulphurization dust removal tower Download PDFInfo
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- CN201711088U CN201711088U CN2010202534778U CN201020253477U CN201711088U CN 201711088 U CN201711088 U CN 201711088U CN 2010202534778 U CN2010202534778 U CN 2010202534778U CN 201020253477 U CN201020253477 U CN 201020253477U CN 201711088 U CN201711088 U CN 201711088U
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- flue gas
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- shower nozzle
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Abstract
Disclosed is a mixed mode wet-process fire coal flue gas desulphurization dust removal tower, wherein, a flue gas inlet is disposed on the tower wall at the middle part of a tower body, the flue gas inlet is communicated into the tower, an arc-shaped baffle is disposed on the facade of an outlet of the flue gas inlet in the tower, three faces of the arc-shaped baffle are fixed on the inner wall of the tower body, an impact port is disposed at the lower part of the baffle, the region of the baffle in the tower is a froth area, a spraying area is arranged on the froth area, a nozzle layer is arranged on the spraying area, a plurality of layers of nozzles are disposed in the nozzle layer, pipelines of the nozzles are connected with an absorption liquid inlet valve, a plurality of grades of defogging layers are arranged on the nozzle layer, and an outlet is disposed at the upper part of the tower wall on the defogging layers; and an adding valve is disposed on the tower wall at the middle part of the froth area, an absorption liquid circulation groove is disposed under the froth area, an overflow valve is disposed at the upper part of the absorption liquid circulation groove, and an absorption liquid outlet is disposed at the lower part of the absorption liquid circulation groove, and the scheme overcomes defects that the existing equipment is simple and emits flue gas containing mass dust particles and sulfur dioxide to the air. The utility model is suitable for matching steam power stations, boilers and other fire coal equipment.
Description
Technical field
The utility model relates to a kind of compound wet method coal-fired flue gas desulfurization gas wash tower, and particularly a kind of purifier of coal-fired flue-gas is applied to industry and boiler for domestic, kiln type of furnace discharge flue gas.
Background technology
It is a current Air Pollution prevention and control of country that coal-fired flue-gas removes sulfur dioxide, the important measures of protection environment.The coal-fired flue gas desulfurization gas wash tower is of a great variety, mostly is monotechnics greatly, and separate with circulating slot on the absorption tower, because equipment is simple, to removing the poor effect of sulfur dioxide, has polluted atmosphere and ecological environment, and the power consumption height, and operating cost is big.
Summary of the invention
The purpose of this utility model provides impacts spray Gas-Liquid Absorption technology in dedusting, Pao Droplets Gas-Liquid Absorption, the tower a kind of the collection, removes the sulfur dioxide in the coal-fired flue-gas and the compound wet method coal-fired flue gas desulfurization gas wash tower of grit.
For achieving the above object, a kind of compound wet method coal-fired flue gas desulfurization gas wash tower, the external form that comprises tower body is a cylinder tower, on the tower wall at tower body middle part gas approach is set, gas approach passes to tower Inner, outlet front at tower Inner gas approach is provided with curved baffle, three faces of curved baffle are fixed on the inwall of tower body, and the bottom of baffle plate is provided with Striker, and the zone at tower Internal baffle place is a froth zone, be the spray district above the froth zone, spray is the shower nozzle floor above the district, and the shower nozzle layer is installed several layers of shower nozzle, and the pipeline of shower nozzle connects the absorption liquid imported valve, be several grades of demist layers above the shower nozzle layer, the Ta Bi top above the demist layer has outlet; The tower wall at froth zone middle part is provided with adds valve, be the absorption liquid circulating slot below the froth zone, on the upper column wall of absorption liquid circulating slot overflow valve is set, and absorption liquid is set on the bottom tower wall of absorption liquid circulating slot exports.
In order to realize products perfection, improve, improve combination property of the present utility model, further step is:
Striker is the distance between the bottom of the absorption liquid liquid level of absorption liquid circulating slot and baffle plate, and the flow velocity that flue gas passes through at Striker is the 18-22 meter per second.
The skin of tower body adopts metallic plate to roll and is welded, and internal layer is a corrosion-proof wear-resistant material, or tower body is built into by rock.
The demist layer adopts deflector type or screen type structure.
The bottom of absorption liquid circulating slot and tower body is connected as a single entity.
The external form of tower body of the present utility model is a cylinder tower, on the tower wall at tower body middle part gas approach is set, gas approach passes to tower Inner, outlet front at tower Inner gas approach is provided with curved baffle, three faces of curved baffle are fixed on the inwall of tower body, the bottom of baffle plate is provided with Striker, the zone at tower Internal baffle place is a froth zone, be the spray district above the froth zone, spray is the shower nozzle floor above the district, and several layers of shower nozzle are set in the shower nozzle layer, and the pipeline of shower nozzle connects the absorption liquid imported valve, be several grades of demist layers above the shower nozzle layer, the Ta Bi top above the demist layer has outlet; The tower wall at froth zone middle part is provided with adds valve, it below the froth zone absorption liquid circulating slot, the top of absorption liquid circulating slot is provided with overflow valve, the bottom of absorption liquid circulating slot is provided with the scheme of absorption liquid outlet, it is simple to have overcome existing equipment, be discharged in the flue gas in the atmosphere, the defective of more grit and sulfur dioxide is arranged.
The beneficial effect that the utility model is produced compared to existing technology:
1, integrates spray Gas-Liquid Absorption technology in impact dedusting, Pao Droplets Gas-Liquid Absorption, the tower, removed sulfur dioxide and the grit in the coal-fired flue-gas, prevented pollution, protected atmosphere and ecological environment.
2, the bottom of absorption liquid circulating slot and tower body is connected as a single entity, with absorption liquid circulating slot and tower body splitting ratio, reduced power consumption, reduced operating cost, reduced occupation area of equipment.
3, simple and reasonable, easily manufactured, cost is low, can be in short-term fouling and stopping up, it is longer that the cycle is stopped up in fouling.
The utility model is applicable to and the thermal power plant, and coal is with boiler and the supporting use of other coal combustion equipment.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is a sectional structure chart of the present utility model.
Among the figure: 1, gas approach, 2, Striker, 3, curved baffle, 4, froth zone, 5, the spray district, 6, shower nozzle layer, 7, the demist layer, 8, outlet, 9, imported valve, 10, tower body, 11, add valve, 12, overflow valve, 13, the absorption liquid circulating slot, 14, the absorption liquid outlet, 15, shower nozzle.
The specific embodiment
Shown in Figure 1 by accompanying drawing, a kind of compound wet method coal-fired flue gas desulfurization gas wash tower, the external form that comprises tower body 10 is a cylinder tower, on the tower wall at tower body 10 middle parts gas approach 1 is set, gas approach 1 passes to tower Inner, outlet front at tower Inner gas approach 1 is provided with curved baffle 3, three faces of curved baffle 3 are fixed on the inwall of tower body 10, the bottom of baffle plate 3 is provided with Striker, the zone at tower Internal baffle 3 places is a froth zone 4, be spray district 5 above the froth zone 4, above the spray district 5 is shower nozzle floor 6, and shower nozzle layer 6 is installed several layers of shower nozzle 15, and the pipeline of shower nozzle 15 connects absorption liquid imported valve 9, above the shower nozzle layer 6 is several grades of demist layers 7, and the Ta Bi top above the demist layer 7 has outlet 8; The tower wall at froth zone 4 middle parts is provided with adds valve 11, be absorption liquid circulating slot 13 below the froth zone 4, on the upper column wall of absorption liquid circulating slot 13 overflow valve 12 is set, and absorption liquid is set on the bottom tower wall of absorption liquid circulating slot 13 exports 14.Striker 2 is the distance between the bottom of the absorption liquid liquid level of absorption liquid circulating slot 13 and baffle plate 3.The skin of tower body 10 adopts metallic plate to roll and is welded, and internal layer is a corrosion-proof wear-resistant material.Demist layer 7 adopts deflector type or screen type structure.Absorption liquid circulating slot 13 is connected as a single entity with the bottom of tower body 10.
Produce flue gas during fired coal combustion, harmful components in the flue gas comprise grit and sulfur dioxide, in order to remove the harmful components in the flue gas, flue gas is imported in the tower body 10 through gas approach 1, impact to the liquid level of bottom absorption liquid by curved baffle 3 guiding flue gas stream, through the useful space of liquid level and baffle plate Striker 2, the liquid level friction of flue gas and Striker bottom and mistake, flue gas changes direction at liquid level, forms violent liquid level and impacts.Because the weight difference of soot dust granule and flue gas makes soot dust granule produce centrifugal force, is urged in the absorption liquid, soot dust granule is dissolved in or is deposited in the absorption liquid.This process can reduce the grit of 60-80% in the flue gas.Though pernicious gases such as the oxysulfide in the flue gas, nitrogen oxide seldom are absorbed by liquid absorption, and make the gas, liquid, solid three-phase system be reassembled into turbulent airflow.
Absorption liquid surface, tower body 10 bottom is impacted by flue gas and is promoted, and makes 4 boilings of absorption liquid Zai Pao Droplets district.Flue gas rises from liquid level, carries a large amount of liquid foams and bubble secretly, and harmful substances such as the oxysulfide in the flue gas, part nitrogen oxide have had sufficient the contact and diffusion with bubble between the Droplets, and is partially absorbed by bubble Droplets, and absorptivity is 50%.And make the turbulent flow combination again of gas, liquid, solid three-phase system.
Flue gas Jing Pao Droplets district 4 continues to rise, and enters spray district 5, spray district 5 Wei Pao Droplets district 4 or more to the zone of shower nozzle floor 6 below, spray is distinguished 5 height and diameter and has been determined flue gas to distinguish for 5 the time of staying spraying, and has determined the removal effect of sulfur dioxide in flue gas.Shower nozzle floor 6 above the spray district 5 has the 1-3 floor, the 1-3 layer is installed several shower nozzles 15, and through imported valve 9 input absorption liquids, it is 0.3 μ m～0.5 μ m particle-liquid that shower nozzle 15 sprays out diameter downwards, flue gas is repeatedly covered and mixes, and coverage rate reaches 200-300%.The quantity of the number of plies of shower nozzle layer 6 and shower nozzle 15 has determined spray flux, and the spray coverage rate has determined the removal effect of sulfur dioxide in flue gas.Oxysulfide in the flue gas, oxides of nitrogen gas are contacted fully with absorption liquid and are spread, and are absorbed by spray liquid, make total absorptivity reach 95%, and absorption liquid absorbs the grit in the flue gas simultaneously, makes the final dusting rate reach 80%.According to the height of harmful substance contents in the flue gas, flue gas is set is about 1.5-5 second in the spray 5 absorber portion time of staying of district.
Behind flue gas process spraying layer 5 and the shower nozzle layer 6, enter demist layer 7, flue gas is after demist, and the weight percent content of foam is less than 7%, and the flue gas through purifying is discharged through exporting 8.Demist layer 7 can adopt deflector type or screen type structure, selects stainless steel or Zou propylene material for use.Demist layer 7 top purify the exhanst gas outlet 8 except that being provided with, and evacuation port also can be set as required and detect mouth.
Absorption liquid enters shower nozzle layer 6 through imported valve 9; when spraying out liquid downwards; pernicious gas and grits such as the oxysulfide in the flue gas, nitrogen oxide have been absorbed; fall through Pao Droplets district 4; fall into and be contained in the absorption liquid circulating slot 13; grit can be deposited in absorption liquid circulating slot 13 bottoms, oxysulfide, nitrogen oxide can with the absorbent generation chemical reaction in the absorption liquid, to remove oxysulfide, nitrogen oxide.Absorption liquid outlet 14 is installed on the absorption liquid circulating slot 13 bottom tower walls, absorption liquid by absorption liquid outlet 14 through the circulating pump pump to absorption liquid imported valve 9, absorption liquid is recycled.When the absorption liquid in the absorption liquid circulating slot 13 is not enough, replenish absorption liquid by adding valve 911, after the absorption liquid liquid level reached the regulation liquid level, the absorption liquid of adding was discharged by liquid level overflow valve 12.
The utility model be applied to desulfurization and dust removal integrated engineering project effect obvious, small investment, instant effect.20t/h and following boiler or 50000 m
3The desulfurization of/h and following kiln gas and dedusting project are fit to the utility model and use, and select different desulfurizing agents and suitable absorption liquid and flue gas ratio, and desulfuration efficiency and efficiency of dust collection can reach 95-99% respectively, and operating cost is lower than device of the same type.When exhaust gas volumn during greater than above-mentioned data, independent dust arrester is generally all disposed in dedusting, the utility model is in the application of this intermediate item, mainly based on desulfurization and part denitration, select different desulfurizing agents and suitable absorption liquid and flue gas ratio, desulfuration efficiency can reach 95-99%, and operating cost is lower than device of the same type.
The excursion that the utility model is adapted to exhaust gas volumn is the 40-110% of designed capacity, and the excursion limit is 30-120%.Be adapted to various desulfurizing agents.Resistance that must dedusting is reduced to 800-1000Pa, and resistance that must dedusting is reduced to 1000-1200Pa.Simple in structure, can be in short-term fouling and stopping up, it is longer that the cycle is stopped up in fouling.
Claims (5)
1. compound wet method coal-fired flue gas desulfurization gas wash tower, it is characterized in that: on the tower wall at tower body (10) middle part gas approach (1) is set, gas approach (1) passes to tower Inner, in the outlet front of tower Inner gas approach (1) curved baffle (3) is set, three faces of curved baffle (3) are fixed on the inwall of tower body (10), the bottom of baffle plate (3) is provided with Striker, the zone at tower Internal baffle (3) place is froth zone (4), be spray district (5) above the froth zone (4), above the spray district (5) is shower nozzle floor (6), shower nozzle layer (6) is installed several layers of shower nozzle (15), the pipeline of shower nozzle (15) connects absorption liquid imported valve (9), above the shower nozzle layer (6) is several grades of demist layers (7), and the Ta Bi top above the demist layer (7) has outlet (8); The tower wall at froth zone (4) middle part is provided with adds valve (11), below the froth zone (4) is absorption liquid circulating slot (13), overflow valve (12) is set on the upper column wall of absorption liquid circulating slot (13) absorption liquid circulating slot (13), absorption liquid outlet (14) is set on the bottom tower wall of absorption liquid circulating slot (13).
2. a kind of compound wet method coal-fired flue gas desulfurization gas wash tower according to claim 1, it is characterized in that described Striker (2) is the distance between the bottom of the absorption liquid liquid level of absorption liquid circulating slot (13) and baffle plate (3), the flow velocity that flue gas passes through at Striker (2) is the 18-22 meter per second.
3. a kind of compound wet method coal-fired flue gas desulfurization gas wash tower according to claim 1, the skin that it is characterized in that described tower body (10) adopts metallic plate to roll and is welded, and internal layer is a corrosion-proof wear-resistant material, or tower body (10) is built into by rock.
4. a kind of compound wet method coal-fired flue gas desulfurization gas wash tower according to claim 1 is characterized in that described demist layer (7) adopts deflector type or screen type structure.
5. a kind of compound wet method coal-fired flue gas desulfurization gas wash tower according to claim 1 is characterized in that the described absorption liquid circulating slot (13) and the bottom of tower body (10) are connected as a single entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534778U CN201711088U (en) | 2010-07-09 | 2010-07-09 | Mixed mode wet-process fire coal flue gas desulphurization dust removal tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202534778U CN201711088U (en) | 2010-07-09 | 2010-07-09 | Mixed mode wet-process fire coal flue gas desulphurization dust removal tower |
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| Publication Number | Publication Date |
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| CN201711088U true CN201711088U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202534778U Expired - Fee Related CN201711088U (en) | 2010-07-09 | 2010-07-09 | Mixed mode wet-process fire coal flue gas desulphurization dust removal tower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126507A (en) * | 2015-10-09 | 2015-12-09 | 江苏正通宏泰股份有限公司 | Ultra-clean dust removal device for desulfurizing tower |
| CN106731618A (en) * | 2017-02-14 | 2017-05-31 | 哈尔滨蔚蓝环保设备制造有限公司 | Boiler SNCR urea method denitrating systems |
| CN111514732A (en) * | 2020-04-29 | 2020-08-11 | 宜兴市海纳环境工程有限公司 | Multi-pipe type dust removal and desulfurization integrated equipment |
| CN115321631A (en) * | 2022-08-09 | 2022-11-11 | 重庆钢铁股份有限公司 | Waste water foam eliminating device |
-
2010
- 2010-07-09 CN CN2010202534778U patent/CN201711088U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126507A (en) * | 2015-10-09 | 2015-12-09 | 江苏正通宏泰股份有限公司 | Ultra-clean dust removal device for desulfurizing tower |
| CN106731618A (en) * | 2017-02-14 | 2017-05-31 | 哈尔滨蔚蓝环保设备制造有限公司 | Boiler SNCR urea method denitrating systems |
| CN111514732A (en) * | 2020-04-29 | 2020-08-11 | 宜兴市海纳环境工程有限公司 | Multi-pipe type dust removal and desulfurization integrated equipment |
| CN115321631A (en) * | 2022-08-09 | 2022-11-11 | 重庆钢铁股份有限公司 | Waste water foam eliminating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HU NAN BILV EP INDUSTRY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LUO ZHONGKAI Effective date: 20110901 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110901 Address after: Xiangtan City, Hunan province high tech Zone 411100 German Industrial Park Green Road No. 5 Patentee after: Hunan Bilv EP Industry Development Co., Ltd. Address before: 411100 No. 306 North Road, Yuhu District, Hunan, Xiangtan Patentee before: Luo Zhongkai |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |