CN203610030U - Twin-tower wet sodium alkali desulphurization and dust collection device - Google Patents
Twin-tower wet sodium alkali desulphurization and dust collection device Download PDFInfo
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- CN203610030U CN203610030U CN201320768426.2U CN201320768426U CN203610030U CN 203610030 U CN203610030 U CN 203610030U CN 201320768426 U CN201320768426 U CN 201320768426U CN 203610030 U CN203610030 U CN 203610030U
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- desulfurization
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Abstract
The utility model belongs to the technical field of smoke dust desulfurization and dust removing for small and medium-sized boilers, aims to solve the problems of high dust content, substandard sulfur emission, and low desulfurization and dust collection efficiencies of emitted flue gas as the burning of high sulfur coal for ordinary boilers in the conventional desulfurization and dust collection device is insufficient, and provides a twin-tower wet sodium alkali desulphurization and dust collection device and technology. The twin-tower wet sodium alkali desulphurization and dust collection device compromises a dust collection tower connected with a boiler, a desulfurization tower mounted with a spray header, an induced draft fan connected with the dust collection tower and the desulfurization tower, and a tertiary sedimentation tank connected with the bottom of the desulfurization tower. The twin-tower wet sodium alkali desulphurization and dust collection device is applied to the small and medium-sized boilers and has the advantages that the desulfurization efficiency is over 98 percent; the dust collection efficiency is over 97 percent; the running cost is low; the dust collection tower and the desulfurization tower are connected with a chimney flue through flanges clamped with asbestos ropes, so that the chimney flue, the dust collection tower and the desulfurization tower can be disassembled, cleaned and replaced conveniently; baffle boards are mounted in the dust collection tower and the desulfurization tower to prevent waste water from getting into and eroding the dust removing tower and the desulfurization tower; as the chimney flue is immersed in the water of the dust collection tower, and the spray header is used, the effects of dust collection and desulfurization are enhanced.
Description
Technical field
The utility model belongs to medium small boiler flue dust desulfurization and dedusting technology field, is specifically related to a kind of double tower wet type soda method desulfation dust-extraction device.
Background technology
In today of rapid economic development, along with improving constantly of people's economic level, also more and more stricter to the requirement of environment.What in current industrial, commonly use is wet process of FGD dedusting, and what this method desulfurization adopted is that the washing of interstitial fluid absorbent is containing SO
2flue gas, absorb the SO removing in flue gas by chemical reaction
2, shortcoming is that flue gas after desulfurization temperature is lower, is unfavorable for chimney emission and diffusion, and the employing that adds of desulfurization medicament manually adds, and science is not wasted again desulfurization medicament, has strengthened operating cost and employee's labour intensity, and desulfurized effect is also undesirable.And medium small boiler is because burning is insufficient, in the flue gas of discharge, contain a large amount of sulphur and flue dust, and desulfation dust-extraction device is because installing space is limited, can not adopt CaO as desulfurizing agent, thereby make the desulfurization dust-removing efficiency of medium small boiler low, discharge black smoke is not up to standard.
Common desulfurization dust-removing technique reaches below 60% the plain cylindrical furnace dust removing effects of having installed and used at present, and desulfurized effect is below 50%, does not reach discharge standard requirement, and the black smoke of insufficient discharge of burning is felt simply helpless especially.Therefore be badly in need of providing a kind of and be applied to that desulfuration efficiency on medium small boiler is high, the desulfation dust-extraction device of good dedusting effect.
Summary of the invention
The utility model uses high sulfur coal combustion insufficient in order to solve existing desulfation dust-extraction device to plain cylindrical furnace, in the flue gas that causes discharging, flue dust is higher, sulphur emissions is not up to standard, the present situation that desulfurization dust-removing efficiency is low, provides a kind of double tower wet type soda method desulfation dust-extraction device.
The utility model is realized by following technical scheme: a kind of double tower wet type soda method desulfation dust-extraction device, comprise the gas wash tower being connected with boiler, the air-introduced machine that is installed on the desulfurizing tower of spray head, is connected with gas wash tower and desulfurizing tower, three grades of sedimentation basins that desulfurizing tower bottom connects, described boiler top is connected with gas wash tower bottom by the flue that enters gas wash tower bottom, gas wash tower is provided with water tank lower than flue outlet flue place, water tank bottom drives the mouth of a river into, and gas wash tower top is connected with air-introduced machine; Fan out draft is connected with desulfurizing tower top by flue, and described spray head is connected by corrosion protection pump with three grades of sedimentation basins, and described corrosion protection pump outlet conduit is installed in tank top and with running water outlet pipe and is connected.
Described gas wash tower is connected with the flange that accompanies asbestos cord with flue with desulfurizing tower, and described gas wash tower inner flue top and smoke oral area are installed and stayed apertured water fender, and gas wash tower bottom is connected with the first order sedimentation basin bottom of three grades of sedimentation basins; Described desulfurizing tower is for entering smoke-box and going out smoke-box two parts, entering smoke-box top and flue enters the mouth flange that accompanies asbestos cord and is connected, and installation spray head, going out smoke-box middle part installs and stays apertured water fender, top is connected with the flange that accompanies asbestos cord with flue, goes out smoke-box bottom and is connected by pipeline with second level sedimentation basin; Described spray head is connected by corrosion protection pump with the water outlet of third level sedimentation basin.Described air-introduced machine and flue are flexible coupling; Described gas wash tower bottom mounted valve, described water tank lowest water level line is higher than flue bottom 100mm; Automatic water control valve is installed in described corrosion protection pump outlet conduit exit.
When work, close removing ash of boiler door and vent, open running water and automatic water control valve, open gas wash tower bottom valve, make gas wash tower bottom water level higher than waterline, three grades of sedimentation basins are full of valve-off after water, flue gas enters gas wash tower by flue, in gas wash tower, remove part dust and remove a small amount of sulphur, gas wash tower bottom water is acid water, water fender prevents that acid water from entering gas wash tower top and boiler flue corrosion flue inwall, and flue gas declines by speed after water fender in gas wash tower, enters the smoke-box that enters of desulfurizing tower by air-introduced machine after being accelerated; Open corrosion protection pump, start spray head, in three grades of sedimentation basins, add caustic soda, in and sour water, alkali lye is sprayed by spray head after pumping into spray head by corrosion protection pump, removes sulphur and flue dust in flue dust, and the waste liquid that spray falls enters second level sedimentation basin, third level sedimentation basin by pipeline, water after precipitation is pumped in water tank and is reused by corrosion protection pump, the inflow of automatic water control valve control water tank; The flue gas of desulfurization and dedusting goes out smoke-box top finally by mistake desulfurizing tower and enters atmosphere; Open valve after flue dust and acidity in the water of gas wash tower bottom reach maximum, waste liquid enters in first order sedimentation basin and continues to precipitate.Gas wash tower inwall adopts anti-corrosion material to make, and prevents that waste water from entering corrosion gas wash tower.Gas wash tower is connected with the flange that accompanies insomnia with flue with desulfurizing tower, is convenient to dismantle lower cleaning and changes flue.
The utility model is applied to medium small boiler, desulfuration efficiency reaches more than 98%, and efficiency of dust collection reaches more than 97%, and operating cost is low, gas wash tower is connected with flue with desulfurizing tower with the flange that accompanies asbestos cord, is convenient to disassembly, cleaning and changes flue and gas wash tower and desulfurizing tower; In gas wash tower and desulfurizing tower, install water fender, prevent that waste water from entering post-etching gas wash tower and desulfurizing tower, the application repeatedly of water, reduce cost, flue is immersed in the water in gas wash tower bottom, remove portion sulphur and flue dust, sulphur and the flue dust in flue gas further removed in the use of spray head, and dust-removal and desulfurizing effect is strengthened.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-boiler; 2-gas wash tower; 3-air-introduced machine; 4-desulfurizing tower; 4.1-enters smoke-box; 4.2-goes out smoke-box; Tri-grades of sedimentation basins of 5-; 5.1-first order sedimentation basin; 5.2-second level sedimentation basin; 5.3-third level sedimentation basin; 6-flue; 7-corrosion protection pump; 8-accompanies the flange of asbestos cord; 9-water fender; 10-water tank; 11-water inlet; 12-spray head; 13-valve; 14-running water outlet pipe; 15-automatic water control valve.
The specific embodiment
As shown in Figure 1, a kind of double tower wet type soda method desulfation dust-extraction device, comprise the gas wash tower 2 being connected with boiler 1, the desulfurizing tower 4 that is installed on spray head 12, the air-introduced machine 3 being connected with gas wash tower 2 and desulfurizing tower 4, three grades of sedimentation basins 5 that desulfurizing tower 4 bottoms connect, described boiler 1 top is connected with gas wash tower 2 bottoms by the flue 6 that enters gas wash tower 2 bottoms, gas wash tower 2 is provided with water tank 10 lower than flue 6 outlet flue places, and water tank bottom drives the mouth of a river 11 into, and gas wash tower 2 tops are connected with air-introduced machine 3; Air-introduced machine 3 air outlets are connected with desulfurizing tower 4 tops by flue 6, and described spray head is connected by corrosion protection pump with three grades of sedimentation basins, and described corrosion protection pump 7 outlet conduits are installed in water tank 10 tops and with running water outlet pipe 14 and are connected.
Described gas wash tower 2 is connected with the flange 8 that flue 6 use accompany asbestos cord with desulfurizing tower 4, and described gas wash tower 2 inner flue tops and smoke oral area are installed and stayed apertured water fender 9, and gas wash tower 2 bottoms are connected with first order sedimentation basin 5.1 bottoms of three grades of sedimentation basins 5; Described desulfurizing tower 4 is for entering smoke-box 4.1 and going out smoke-box 4.2 two parts, entering smoke-box 4.1 tops and flue enters the mouth flange that accompanies asbestos cord and is connected, and spray head 12 is installed, going out smoke-box 4.2 middle parts installs and stays apertured water fender 9, top is connected with the flange 8 that accompanies asbestos cord with flue, goes out smoke-box 4.2 bottoms and is connected by pipeline with second level sedimentation basin 5.2; Described spray head 12 is connected by corrosion protection pump 7 with 5.3 water outlets of third level sedimentation basin.Described air-introduced machine 3 is flexible coupling with flue; Described gas wash tower 2 bottom mounted valves 13, described water tank 10 lowest water level lines are higher than flue bottom 100mm; Automatic water control valve 15 is installed in described corrosion protection pump outlet conduit exit.
When work, close removing ash of boiler door and vent, open running water and automatic water control valve, open gas wash tower bottom valve, make gas wash tower bottom water level higher than waterline, three grades of sedimentation basins are full of valve-off after water, flue gas enters gas wash tower by flue, in gas wash tower, remove part dust and remove a small amount of sulphur, gas wash tower bottom water is acid water, water fender prevents that acid water from entering gas wash tower top and boiler flue corrosion flue inwall, and flue gas declines by speed after water fender in gas wash tower, enters the smoke-box that enters of desulfurizing tower by air-introduced machine after being accelerated; Open corrosion protection pump, start spray head, in three grades of sedimentation basins, add caustic soda, in and sour water, alkali lye is sprayed by spray head after pumping into spray head by corrosion protection pump, removes sulphur and flue dust in flue dust, the waste liquid that spray falls enters second level sedimentation basin, third level sedimentation basin by pipeline, water after precipitation is pumped in water tank and is reused by corrosion protection pump, and automatic water control valve fills into water at regular time and quantity, controls the inflow of water tank; The flue gas of desulfurization and dedusting goes out smoke-box top finally by mistake desulfurizing tower and enters atmosphere; Open valve after flue dust and acidity in the water of gas wash tower bottom reach maximum, waste liquid enters in first order sedimentation basin and continues to precipitate.Gas wash tower inwall adopts anti-corrosion material to make, and prevents that waste water from entering corrosion gas wash tower.Gas wash tower is connected with the flange that accompanies insomnia with flue with desulfurizing tower, is convenient to dismantle lower cleaning and changes flue.
Claims (3)
1. a double tower wet type soda method desulfation dust-extraction device, comprise the gas wash tower (2) being connected with boiler (1), be installed on the desulfurizing tower (4) of spray head (12), the air-introduced machine (3) being connected with gas wash tower (2) and desulfurizing tower (4), three grades of sedimentation basins (5) that desulfurizing tower (4) bottom connects, it is characterized in that: described boiler (1) top is connected with gas wash tower (2) bottom by the flue (6) that enters gas wash tower (2) bottom, gas wash tower (2) is provided with water tank (10) lower than flue (6) outlet flue place, water tank bottom drives the mouth of a river (11) into, gas wash tower (2) top is connected with air-introduced machine (3), air-introduced machine (3) air outlet is connected with desulfurizing tower (4) top by flue (6), described spray head is connected by corrosion protection pump with three grades of sedimentation basins, and described corrosion protection pump (7) outlet conduit is installed in water tank (10) top and with running water outlet pipe (14) and is connected.
2. a kind of double tower wet type soda method desulfation dust-extraction device according to claim 1, it is characterized in that: described gas wash tower (2) is connected with flue (6) flange (8) that accompanies asbestos cord with desulfurizing tower (4), described gas wash tower (2) inner flue top and smoke oral area are installed and are stayed apertured water fender (9), and gas wash tower (2) bottom is connected with first order sedimentation basin (5.1) bottom of three grades of sedimentation basins (5); Described desulfurizing tower (4) is for entering smoke-box (4.1) and going out smoke-box (4.2) two parts, entering smoke-box (4.1) top and flue enters the mouth flange that accompanies asbestos cord and is connected, and spray head (12) is installed, going out smoke-box (4.2) middle part installs and stays apertured water fender (9), top is connected with the flange (8) that accompanies asbestos cord with flue, goes out smoke-box (4.2) bottom and is connected by pipeline with second level sedimentation basin (5.2); Described spray head (12) is connected by corrosion protection pump (7) with third level sedimentation basin (5.3) water outlet.
3. a kind of double tower wet type soda method desulfation dust-extraction device according to claim 1, is characterized in that: described air-introduced machine (3) is flexible coupling with flue; Described gas wash tower (2) bottom mounted valve (13), described water tank (10) lowest water level line is higher than flue bottom 100mm; Automatic water control valve (15) is installed in described corrosion protection pump outlet conduit exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768426.2U CN203610030U (en) | 2013-11-29 | 2013-11-29 | Twin-tower wet sodium alkali desulphurization and dust collection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320768426.2U CN203610030U (en) | 2013-11-29 | 2013-11-29 | Twin-tower wet sodium alkali desulphurization and dust collection device |
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| CN203610030U true CN203610030U (en) | 2014-05-28 |
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| CN201320768426.2U Expired - Fee Related CN203610030U (en) | 2013-11-29 | 2013-11-29 | Twin-tower wet sodium alkali desulphurization and dust collection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691275A (en) * | 2013-11-29 | 2014-04-02 | 山西海洁星环保设备有限公司 | Twin-tower wet-type sodium alkali-method desulfurization dust-removing device and process |
| CN110252120A (en) * | 2019-07-11 | 2019-09-20 | 启明星宇节能科技股份有限公司 | A kind of aluminium stone kiln desulfurization and dust pelletizing system |
-
2013
- 2013-11-29 CN CN201320768426.2U patent/CN203610030U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691275A (en) * | 2013-11-29 | 2014-04-02 | 山西海洁星环保设备有限公司 | Twin-tower wet-type sodium alkali-method desulfurization dust-removing device and process |
| CN103691275B (en) * | 2013-11-29 | 2015-10-21 | 山西海洁星环保设备有限公司 | Double tower wet type sodium alkali desulfation dust-extraction device and technique |
| CN110252120A (en) * | 2019-07-11 | 2019-09-20 | 启明星宇节能科技股份有限公司 | A kind of aluminium stone kiln desulfurization and dust pelletizing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20151129 |