CN201216921Y - Novel controllable wet desulphurization column for smoke prevention and dust control - Google Patents
Novel controllable wet desulphurization column for smoke prevention and dust control Download PDFInfo
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- CN201216921Y CN201216921Y CNU2008201344694U CN200820134469U CN201216921Y CN 201216921 Y CN201216921 Y CN 201216921Y CN U2008201344694 U CNU2008201344694 U CN U2008201344694U CN 200820134469 U CN200820134469 U CN 200820134469U CN 201216921 Y CN201216921 Y CN 201216921Y
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Abstract
The utility model provides a novel controllable flue elimination dust-removal wet desulphurization tower which is applicable to the dust removal and desulphurization of a heating furnace, a sintering furnace, a pelletizing furnace, a baking furnace, an incinerator and a boiler. The wet desulphurization tower belongs to the environmental protection technical field and solves the disadvantages of complicated structure, large site occupation, easy nozzle fouling and blockage, low dust removal efficiency and decreasing desulphurization efficiency along with the increasing of operating time found in the desulphurization tower equipment in the prior art. The desulphurization tower comprises a venturi, a flue gas inlet, a fluid level gauge, a manhole, a drain port, a PH meter, a lower fluid level port, a middle fluid level port, a high fluid level port, a tower body, a gas distribution grid, a slurry inlet valve, a slurry pipeline, a desulphurization pipeline, a desulphurization nozzle, a control valve, a flowmeter, a fog remover, a flushing nozzle and a flue gas outlet. The technical proposal of the wet desulphurization tower includes that the flue gas is processed with first dust removal and cooling by the venturi to flow to the desulphurization tower; the flue gas after the first dust removal and cooling is contacted with alkali fluid sufficiently through bubbling in the alkali fluid in the bottom of the tower for desulphurization and dust removal, and then the flue gas rises to be distributed evenly through the third gas distribution grid and contacted with the slurry of the third layer desulphurization nozzle for desulphurization and dust removal.
Description
Technical field
The utility model relates to a kind of novel controlled smoke abatement and dust control wet desulfuration tower, is applicable to flue-gas dust-removing and desulfurizations such as heating furnace, sintering, pelletizing, roasting, incinerator, boiler, belongs to environmental technology field.
Background technology
According to statistics, the present sulfur dioxide annual emissions of China is about 2,549 ten thousand tons, a large amount of sulfur dioxide is from industry and civilian buring solid fuel and the flue gas that produces, especially the sulfur dioxide of the dischargings such as coal-burning boiler of the heating furnace of steel plant, sintering furnace and thermal power plant occupies quite great proportion, the acid rain that it caused has brought massive losses to China's ecological environment and industrial or agricultural, therefore dust-removal and desulfurizing becomes the desulfurization of current environmental protection most important task, especially steel plant, thermal power plant.
Not only contain sulfur dioxide in the flue gas that the boiler of the heating furnace of present steel factory, sintering furnace and thermal power plant produced and also have dust, black smoke etc., and existing wet flue gas desulfurization tower efficiency of dust collection is too low, perhaps only carries out desulfurization; Existing wet desulfuration tower is central area, horizontal cross-section desulfuration efficiency height when operation mostly, and tower body inwall near zone since the slurries sticking wall flow under, make flue gas fully not contact with slurries, this regional desulfuration efficiency is very low, causes desulfurizing tower bulk devulcanization efficient not high thus; And the nozzle that most of wet desulfuration tower adopted is because in tower inside; on the calcium sulfite that generates behind slurries that eject and the smoke reaction drips attached to nozzle; meeting plug nozzle during supersaturation; make nozzle lose atomizing; cause desulfuration efficiency to reduce with increasing running time; nozzle life is short, needs often to shut down to change, and influences production efficiency.
The utility model content
The purpose of this utility model provides a kind of novel controlled smoke abatement and dust control wet desulfuration tower, have to solve present desulfurizing tower equipment that complex structure, floor space are big, the easy fouling of nozzle and obstruction, efficiency of dust collection be low, desulfuration efficiency is degradation problem down along with increasing running time.
In order to address the above problem, technical scheme of the present invention realizes as follows: venturi is positioned on the smoke inlet pipeline, and includes nozzle, and the nozzle opening direction is a flue gas flow direction.Flue gas carries out entering desulfurizing tower after one-time dedusting and the cooling when Venturi nozzle.At tower bottom is the alkali lye that multiple alkaline matter is formed, and detects alkaline matter by the PH meter and forms, and sewage draining exit, manhole have three kinds of liquid level mouths of basic, normal, high liquid level mouth all at tower bottom in the tower bottom, can regulate the alkali lye liquid level, and control alkali lye becomes to be grouped into.Gas distribution grating and desulfurization nozzle arrange that successively three layers are positioned at the desulfurizing tower middle and upper part, the slurries of desulfurization nozzle are supplied with by the slurries pipeline by the desulfurization pipeline, its flow is regulated by control valve, detect by flowmeter, adopt from bottom to top and produce the descending different spray nozzles of fogdrop diameter, the nozzle number increases gradually.Exhanst gas outlet is arranged on the tower body top, and demister is before exhanst gas outlet, and flooding nozzle is positioned on the demister, under the exhanst gas outlet.
Tower body adopts composite construction, is made of carbon steel structure, panel, anticorrosion paste layer and ribs etc., is shaped as the bottom for conical, and the centre is cylindrical, and top is taper type.Wherein, basic, normal, high three liquid level mouths are welded on the tower body for stainless steel tube, and add flange and be connected with the slurries circulation line, and the slurries pipeline places the desulfurizing tower outside, and its material is to paste line with rubber in the carbon steel pipe.
In sum, the utility model can have been simplified the wet desulphurization tower structure, and three layers of nozzle number, angle difference, has solved easy fouling of nozzle and blocking problem, and dedusting, desulfuration efficiency also improve greatly.
Description of drawings
Fig. 1 is the novel controlled smoke abatement and dust control wet desulfuration tower structural representation of the utility model.
Fig. 2 is ground floor (lower floor) desulfurization pipeline and desulfurization nozzle structural representation.
Fig. 3 is the second layer (centre) desulfurization pipeline and desulfurization nozzle structural representation.
Fig. 4 is the 3rd layer of (upper strata) desulfurization pipeline and desulfurization nozzle structural representation.
Code name among the figure
1. 4. manholes, 5. sewage draining exits in venturi 2. smoke inlets 3. liquid level gauges
6.PH count liquid level mouth 9. high liquid level mouth 10. tower bodies in the 7. low liquid level mouths 8.
11. gas distribution grating 12. slurries inlet valves 13. slurries pipelines 14. desulfurization pipelines 15. desulfurization nozzles
16. control valve 17 flowmeters 18. demisters 19. flooding nozzles 20. exhanst gas outlets
The specific embodiment
As Fig. 1 is the novel controlled smoke abatement and dust control wet desulfuration tower structural representation of the utility model, comprises venturi, smoke inlet, liquid level gauge, manhole, sewage draining exit, PH meter, low liquid level mouth, middle liquid level mouth, high liquid level mouth, tower body, gas distribution grating, the slurries inlet valve, slurries pipeline, desulfurization pipeline, desulfurization nozzle, control valve, flowmeter, demister, flooding nozzle, exhanst gas outlet.
During work, flue gas to be clean is through venturi, and the water that the nozzle ejection of venturi goes out runs into high-temperature flue gas and is atomized into water droplet, and flue gas cool-down, water droplet are caught dust, the black smoke (50-200 micron depositing dust) that particle is bigger in the flue gas; Flue gas enters desulfurizing tower after lowering the temperature through one-time dedusting, the smoke inlet pipe outlet is arranged in the alkali lye of tower bottom, at flue gas in the alkali lye uphill process, the flue gas bubble contacts fully with alkali lye, and dust, the black smoke of 10-100 micron are adsorbed by alkali lye, and sulfur dioxide and slurries react, generate calcium sulfite, when the calcium sulfite supersaturation, be deposited in tower bottom, form the switching of control sewage draining exit by material in the PH meter detection alkali lye.Three liquid level mouths are arranged at the tower bottom, be respectively low liquid level mouth, middle liquid level mouth, high liquid level mouth, the switch of liquid level mouth is determined by exhaust gas volumn, just replenishes slurries by high liquid level mouth when exhaust gas volumn is big, exhaust gas volumn hour can be emitted alkali lye by low liquid level mouth, and liquid level can be observed by liquid level gauge.
Flue gas rising through final dusting, once desulfurization is uniform through gas distribution grating, and air-flow is evenly distributed, and flow velocity reduces, and fully to react than the long time and the slurries of desulfurization nozzle, gives full play to dedusting, the desulfuration efficiency of desulfurizing tower.Slurries enter the slurries pipeline by the slurries inlet valve, and distribute to desulfurization nozzle on the pipeline by the desulfurization pipeline, and its flow can be regulated by control valve, detected by flowmeter, and the slurries pipeline are arranged in the desulfurizing tower outside.From bottom to top, the slurries particle diameter that the ground floor desulfurization nozzle sprays is bigger, has the double action that distributes and absorb and capture less dust, black smoke below 10 microns in rising; The slurries particle diameter that second layer desulfurization nozzle produces is less, thereby makes slurries and flue gas that bigger contact area be arranged as far as possible, to improve desulfuration efficiency; The 3rd pull-up sulphur nozzle number is maximum, and angle is less between nozzle, has the desulfurization of elimination dead angle, increases the effect of bulk devulcanization efficient.Because three pull-up sulphur nozzle numbers increase gradually, angle reduces, and the slurries particle diameter difference that produces, and makes flue gas finally effectively dedusting, desulfurization, and its efficient is improve greatly also.
Flue gas through cleaning and desulfurization is removed moisture through demister, and discharges desulfurizing tower by exhanst gas outlet.
When the utility model is worked, regulate the alkali lye liquid level according to dust in exhaust gas volumn, the flue gas, sulfur dioxide concentration, thereby and the effective dust-removal and desulfurizings of three layers of nozzle flow, and energy efficient is improved the desulfurizing tower running status.
The controlled smoke abatement and dust control wet desulfuration tower of the utility model successfully has been used in certain steel works sintering machine flue-gas dust-removing and desulfurization, and it is stable, and is respond well.After measured, the flue gas desulphuization rate through purifying reaches more than 95%, and efficiency of dust collection reaches more than 90%, and the black smoke discharging reaches 1 grade of lingemann blackness.
Claims (5)
1, a kind of novel controlled smoke abatement and dust control wet desulfuration tower comprises venturi, smoke inlet, liquid level gauge, manhole, sewage draining exit, the PH meter, low liquid level mouth, middle liquid level mouth, high liquid level mouth, tower body, gas distribution grating, the slurries inlet valve, slurries pipeline, desulfurization pipeline, desulfurization nozzle, control valve, flowmeter, demister, flooding nozzle, exhanst gas outlet, it is characterized in that being furnished with venturi on the smoke inlet pipeline, the bottom of tower is an alkali lye, and the alkali lye liquid level is detected by liquid level gauge, and low by tower body, in, high liquid level mouth control, be furnished with three layers of gas distribution grating and desulfurization nozzle at the tower body middle part, demister arranged, arrange one deck flooding nozzle above the demister on tower top.
2, novel controlled smoke abatement and dust control wet desulfuration tower according to claim 1 is characterized in that described venturi includes nozzle, and the nozzle opening direction is a flue gas flow direction.
3, novel controlled smoke abatement and dust control wet desulfuration tower according to claim 1 is characterized in that described low liquid level mouth, middle liquid level mouth, and high liquid level mouth is welded on the tower body for stainless steel tube, and adds flange and be connected with the slurries circulation line.
4, novel controlled smoke abatement and dust control wet desulfuration tower according to claim 1 is characterized in that described slurries pipeline places the desulfurizing tower outside, and its material is to paste line with rubber in the carbon steel pipe.
5, novel controlled smoke abatement and dust control wet desulfuration tower according to claim 1, it is characterized in that described desulfurization nozzle places on the described slurries pipeline by the desulfurization pipeline, divide three layers of layout, slurry flow is regulated by control valve, detect by flowmeter, adopt from bottom to top and produce the descending different spray nozzles of slurries fogdrop diameter, the nozzle number increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201344694U CN201216921Y (en) | 2008-08-20 | 2008-08-20 | Novel controllable wet desulphurization column for smoke prevention and dust control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201344694U CN201216921Y (en) | 2008-08-20 | 2008-08-20 | Novel controllable wet desulphurization column for smoke prevention and dust control |
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| Publication Number | Publication Date |
|---|---|
| CN201216921Y true CN201216921Y (en) | 2009-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201344694U Expired - Fee Related CN201216921Y (en) | 2008-08-20 | 2008-08-20 | Novel controllable wet desulphurization column for smoke prevention and dust control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788412A (en) * | 2010-03-19 | 2010-07-28 | 艾佩克斯科技(北京)有限公司 | Device for monitoring flue gas flux of desulfurization tower on line |
| CN104307342A (en) * | 2014-11-07 | 2015-01-28 | 广西南宁华国环境科技有限公司 | Two-stage flue gas desulfurizing tower |
| CN108261870A (en) * | 2018-02-06 | 2018-07-10 | 易能环境技术有限公司 | A kind of desulfurizer and its sulfur method for refining oil high-temperature flue gas |
| CN110102152A (en) * | 2019-06-20 | 2019-08-09 | 傅金凤 | Water-soluble organic exhaust gas absorption tower |
| CN110292840A (en) * | 2018-03-21 | 2019-10-01 | 邢献军 | A kind of combined mist formula wet desulfuration tower |
| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
-
2008
- 2008-08-20 CN CNU2008201344694U patent/CN201216921Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788412A (en) * | 2010-03-19 | 2010-07-28 | 艾佩克斯科技(北京)有限公司 | Device for monitoring flue gas flux of desulfurization tower on line |
| CN104307342A (en) * | 2014-11-07 | 2015-01-28 | 广西南宁华国环境科技有限公司 | Two-stage flue gas desulfurizing tower |
| CN108261870A (en) * | 2018-02-06 | 2018-07-10 | 易能环境技术有限公司 | A kind of desulfurizer and its sulfur method for refining oil high-temperature flue gas |
| CN110292840A (en) * | 2018-03-21 | 2019-10-01 | 邢献军 | A kind of combined mist formula wet desulfuration tower |
| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
| CN110102152A (en) * | 2019-06-20 | 2019-08-09 | 傅金凤 | Water-soluble organic exhaust gas absorption tower |
| CN110102152B (en) * | 2019-06-20 | 2024-04-26 | 傅金凤 | Water-soluble organic waste gas absorption tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20110820 |