CN201157750Y - Impulse-spray double stage wet method flue gas dust-removing desulfurizing purification apparatus - Google Patents
Impulse-spray double stage wet method flue gas dust-removing desulfurizing purification apparatus Download PDFInfo
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- CN201157750Y CN201157750Y CNU2008200047953U CN200820004795U CN201157750Y CN 201157750 Y CN201157750 Y CN 201157750Y CN U2008200047953 U CNU2008200047953 U CN U2008200047953U CN 200820004795 U CN200820004795 U CN 200820004795U CN 201157750 Y CN201157750 Y CN 201157750Y
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- sedimentation tank
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- flue gas
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Abstract
The utility model discloses a purification apparatus for fume dust removal and desulphurization by an impact spraying twin-stage wet method, which comprises a desulfurizing tower; the bottom of the desulfurizing tower is provided with a circulation sedimentation tank in which alkali liquid is filled, and one side of the circulation sedimentation tank is provided with an equalizing water tank; a partition board is arranged between the circulation sedimentation tank and the equalizing water tank; the equalizing water tank is connected with a circulation pump which is provided with a plurality of pipelines connected to the inside of the desulfurizing tower and is provided with a desulfurizing spray head at a water outlet end; an induced draft fan is arranged outside a tower body at the joint of the desulfurizing tower and the circulation sedimentation tank, wherein, the fume inlet end of the induced draft fan is connected with a fume pollution source containing sulfur, and the fume outlet end is led to the desulfurizing tower through a pipeline which inclines from the top to the bottom; the outlet end of the inclined pipeline is provided with an impulse nozzle which faces to the liquid surface of the circulation sedimentation tank. Through causing fume to enter into the desulfurizing tower from the bottom of the desulfurizing tower in the tangential direction and spraying fine fogdrops which are dozens of microns by the impulse nozzle, the purification apparatus ensures that the contact area between gases and liquid is increased, and has good desulphurizing effect.
Description
Technical field
The utility model relates to a kind of dust-removal and desulfurizing purifier, particularly a kind of impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier.
Background technology
Human with natural harmony, the unification of environment and development is a constant theme of new century.The protection environment is made rational use of resources, and is whole society's common responsibility.
China is developing country, and discharging contains the production facility that the Industrial Stoves of sulfur dioxide and flue dust and production or heating boiler and other various discharging contains tobacco powder dirt and has a large capacity and a wide range, and is not easy to centralized and unified management.Therefore research and develop reduced investment, operating cost low, be convenient to maintenance management, the dust-removal and desulfurizing process for purifying and the appliance arrangement that are fit to China's actual conditions are necessary very much.
A kind of boiler smoke-eliminating dust-controlling desulfurizing apparatus is disclosed as Chinese patent CN200420064743.7, it mainly comprises the flue gas conduction pipe, the water storage box type desulfurizing purifier, the Purge gas discharge tube, the steam generator of flue gas oxygenating combustion-supporting and top thereof, the gas outlet of the water vapour playpipe that is communicated with steam generator is arranged on the flue gas conduction pipe moving towards up and down in one section the inner chamber near desulfurizing purifier, it has solved prior art can not remain combustible in the smoke treatment, functional reliability is poor, use inconvenience and baroque problem, be mainly used in the flue-gas dust-removing and desulfurization purified treatment of various boilers.
The utility model content
For the effect that makes the dust-removal and desulfurizing purifier is further improved, the utility model provides a kind of impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier.Described technical scheme is as follows:
A kind of impact spraying of the utility model twin-stage wet flue gas dust-removal and desulfurizing purifier, comprise desulfurizing tower, described desulfurizing tower bottom is provided with circulating sedimentation tank, in the circulating sedimentation tank is akaline liquid, one side of described circulating sedimentation tank is provided with the balance tank, be provided with dividing plate between described circulating sedimentation tank and the equilibrium water groove, the balance tank connects circulating pump, described circulating pump is provided with the multiple tracks pipeline and connects in the desulfurizing tower and be provided with the desulfurization shower nozzle in the water side, desulfurizing tower and circulating sedimentation tank junction tower body are outside equipped with air-introduced machine, described air-introduced machine smoke inlet end is connected with the sulfur-containing smoke gas pollution sources, the port of export is by in the desulfurizing tower of tilted tube introducing from top to bottom, the described tilted tube port of export is provided with impulse nozzle, and described impulse nozzle is over against the circulating sedimentation tank liquid level.
Described impulse nozzle top is provided with impact baffle plate.
Described circulating pump is provided with three road pipelines and connects in the desulfurizing tower, and per pass pipeline top all is equipped with dewatering plate.
Described balance tank upper end is provided with the lime storage tank, and described lime storage tank is connected by pipeline and equilibrium water groove, and lime storage tank upper end connects a water inlet pipe, and circulating pump is connected by a pipeline and lime storage tank.
Be provided with valve on the pipeline that described circulating pump connects.
Described desulfurizing tower, dewatering plate and impact baffle plate are the granite material.
Described circulating sedimentation tank and equilibrium water groove are cement concrete constructions.
Dividing plate height between described circulating sedimentation tank and the equilibrium water groove is lower than the circulating sedimentation tank liquid level.
To entering desulfurizing tower, impulse nozzle is sprayed into tens microns mist and drips the utility model flue gas by the undercutting of desulfurization Tata, makes that the contact area increases between gas-liquid.Owing to provide good gas-liquid contact conditions, SO in the flue gas in the tower
2Absorbed by akaline liquid, desulfurized effect is good.
The utility model desulfurizing tower inside can be divided into three parts---impact section, atomizing desulfurization section, dewatering period.The main effect of impact section is: the dust-laden that comes out from kiln or boiler, the flue gas of sulfur dioxide enter impulse nozzle by pipeline with the tangent line miter angle with the flow velocity of 15-22m/s and impact the akaline liquid surface, make flue gas fully contact mixing with akaline liquid, grit pours in the water by inertia, the sweetening liq that the spray that has been hit, water smoke upwards spray by the desulfurization shower nozzle with flue gas.Be provided with impact baffle plate above the impulse nozzle, it has the effect of dehydration, dedusting and desulfurization concurrently.The middle part be a desulfurization section, is provided with dewatering plate, the desulfurization shower nozzle further fully contacts the flue gas of rising with akaline liquid, and prolong smoke and akaline liquid reaction time, consideration is at 8-10S in the stop reaction time master-plan.The top of tower is provided with dewater unit, and further dehydration prevents the appearance of flue gas with water phenomenon.Dust in the entry and insoluble sulfate are gone out clearly by the slag remover or the artificial timing of bottom.The liquid level of circulating sedimentation tank is controlled automatically by a balance tank.
Tower body adopts granite to build by laying bricks or stones, and dewatering plate also is a granite plates, and the desulfurization shower nozzle is movable assembly, and material is an acid-proof ceramics, can extract repairing at any time out.
The utility model is a kind of efficient general type high-quality equipment, has that flux is big, pressure drop is low, operating flexibility is wide, is difficult for stifled, efficient advantages of higher, and its combination property is better than the wet process of FGD dust arrester that generally uses both at home and abroad.
The utility model combines impact and spraying desulfurization dexterously, works hard from gas-liquid two-phase exposure level, area, promptly has moisture film absorption, self-excitation foaming to absorb and spray and absorb in desulfurizing tower, makes SO in the flue gas
2Fully and the absorption liquid haptoreaction.This is the utility model quantum jump technically, also is the technology place of desulfurization.
The utility model has thoroughly solved three key problem in technology that flue-gas dust-removing and desulfurization purifies, and the first, adopt the mechanical and hydraulic combined dust desulfurization purifier, i.e. equipment dedusting simultaneously and desulfurization, thus remove the investment and the floor space of low system; Second, main equipment is realized " high-efficiency low-resistance ", to existing middle-size and small-size Industrial Boiler or heating boiler flue gas system and all types of industries kiln, the sintering machine of steel industry, sintering shaft furnace, flue gas system such as electric furnace, dryer, under the prerequisite that does not increase its power consumption, fine dust there are higher capture rate and suitable desulfurizing function.The 3rd, adopt wide, the low-cost desulfurizing agent in source, comprise available black liquid, alkaline scrap material, alkaline waste water, carbide slag, lime etc., thereby reduce operating cost.
The utility model adopts and impacts the spraying dehydration, and its purpose all is to strengthen the hydro-combination process of flue gas diffusion process and CaO.In the running, the one, control the addition of CaO, the pH value of promptly controlling absorption liquid is 9-11, the absorption liquid pH value is too low, then SO
2Absorptivity descend; If pH value is too high, the interior dust of the tower lump that can congeal on the one hand, thus scale formation appears; Side reaction can occur on the other hand, absorptivity is descended; The 2nd, control liquid level, keep the liquid level of a standard.Liquid level is too low, then the dust-removal and desulfurizing decrease in efficiency; Liquid level is too high, and then equipment resistance increases, even the burning that can have influence on boiler makes the combustion chamber draft deficiency, other will influence processing parameter as Industrial Stoves such as sintering shaft furnaces.
The utility model impacts spraying twin-stage wet flue gas dust-removing desulfurating apparatus and is widely used in serious pollution industrial waste gases such as metallurgy sintered, chemical industry, building materials, papermaking, non-ferrous metal and administers, and more is applicable to the gas cleaning of boiler, kiln.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing.
A kind of impact spraying of the utility model twin-stage wet flue gas dust-removal and desulfurizing purifier, comprise desulfurizing tower 1, described desulfurizing tower bottom is provided with circulating sedimentation tank 2, in the circulating sedimentation tank is akaline liquid 3, one side of described circulating sedimentation tank is provided with balance tank 4, be provided with dividing plate 5 between described circulating sedimentation tank and the equilibrium water groove, the balance tank connects circulating pump 6, described circulating pump is provided with multiple tracks pipeline 7 and connects in the desulfurizing tower and be provided with desulfurization shower nozzle 8 in the water side, desulfurizing tower and circulating sedimentation tank junction tower body are outside equipped with air-introduced machine 9, described air-introduced machine smoke inlet end is connected with the sulfur-containing smoke gas pollution sources, the port of export by one from top to bottom tilted tube 10 introduce in the desulfurizing towers, the described tilted tube port of export is provided with impulse nozzle, and described impulse nozzle is over against the circulating sedimentation tank liquid level.
Described impulse nozzle top is provided with impact baffle plate 11.
Described circulating pump is provided with three road pipelines and connects in the desulfurizing tower, and per pass pipeline top all is equipped with dewatering plate 12.
Described balance tank upper end is provided with lime storage tank 13, described lime storage tank is connected by pipeline 14 and equilibrium water groove, and lime storage tank upper end connects a water inlet pipe 15, to replenish fresh water, circulating pump is connected by a pipeline 16 and lime storage tank, to utilize recirculated water.
Be provided with valve on the pipeline that described circulating pump connects.
Described desulfurizing tower, dewatering plate and impact baffle plate are the granite material.
Described circulating sedimentation tank and equilibrium water groove are cement concrete constructions.
Dividing plate height between described circulating sedimentation tank and the equilibrium water groove is lower than the circulating sedimentation tank liquid level.
To entering desulfurizing tower, impulse nozzle is sprayed into tens microns mist and drips the utility model flue gas by the undercutting of desulfurization Tata, makes that the contact area increases between gas-liquid.Owing to provide good gas-liquid contact conditions, SO in the flue gas in the tower
2Absorbed by akaline liquid, desulfurized effect is good.
The utility model desulfurizing tower inside can be divided into three parts---impact section, atomizing desulfurization section, dewatering period.The main effect of impact section is: the dust-laden that comes out from kiln or boiler, the flue gas of sulfur dioxide enter impulse nozzle by pipeline with the tangent line miter angle with the flow velocity of 15-22m/s and impact the akaline liquid surface, make flue gas fully contact mixing with akaline liquid, grit pours in the water by inertia, the sweetening liq that the spray that has been hit, water smoke upwards spray by the desulfurization shower nozzle with flue gas.Be provided with impact baffle plate above the impulse nozzle, it has the effect of dehydration, dedusting and desulfurization concurrently.The middle part be a desulfurization section, is provided with dewatering plate, the desulfurization shower nozzle further fully contacts the flue gas of rising with akaline liquid, and prolong smoke and akaline liquid reaction time, consideration is at 8-10S in the stop reaction time master-plan.The top of tower is provided with dewater unit, and further dehydration prevents the appearance of flue gas with water phenomenon.Dust in the entry and insoluble sulfate are gone out clearly by the slag remover or the artificial timing of bottom.The liquid level of circulating sedimentation tank is controlled automatically by a balance tank.
Tower body adopts granite to build by laying bricks or stones, and dewatering plate also is a granite plates, and the desulfurization shower nozzle is movable assembly, and material is an acid-proof ceramics, can extract repairing at any time out.
The utility model is a kind of efficient general type high-quality equipment, has that flux is big, pressure drop is low, operating flexibility is wide, is difficult for stifled, efficient advantages of higher, and its combination property is better than the wet process of FGD dust arrester that generally uses both at home and abroad.
The utility model combines impact and spraying desulfurization dexterously, works hard from gas-liquid two-phase exposure level, area, promptly has moisture film absorption, self-excitation foaming to absorb and spray and absorb in desulfurizing tower, makes SO in the flue gas
2Fully and the absorption liquid haptoreaction.This is the utility model quantum jump technically, also is the technology place of desulfurization.
The utility model has thoroughly solved three key problem in technology that flue-gas dust-removing and desulfurization purifies, and the first, adopt the mechanical and hydraulic combined dust desulfurization purifier, i.e. equipment dedusting simultaneously and desulfurization, thus remove the investment and the floor space of low system; Second, main equipment is realized " high-efficiency low-resistance ", to existing middle-size and small-size Industrial Boiler or heating boiler flue gas system and all types of industries kiln, the sintering machine of steel industry, sintering shaft furnace, flue gas system such as electric furnace, dryer, under the prerequisite that does not increase its power consumption, fine dust there are higher capture rate and suitable desulfurizing function.The 3rd, adopt wide, the low-cost desulfurizing agent in source, comprise available black liquid, alkaline scrap material, alkaline waste water, carbide slag, lime etc., thereby reduce operating cost.
The utility model is reasonable in design, has solved a series of key problem in technology such as equipment and technology corrosion of pipe and flue gas with water in the wet dedusting desulfurization process.
The utility model adopts and impacts the spraying dehydration, and its purpose all is to strengthen the hydro-combination process of flue gas diffusion process and CaO.In the running, the one, control the addition of CaO, the pH value of promptly controlling absorption liquid is 9-11, the absorption liquid pH value is too low, then SO
2Absorptivity descend; If pH value is too high, the interior dust of the tower lump that can congeal on the one hand, thus scale formation appears; Side reaction can occur on the other hand, absorptivity is descended; The 2nd, control liquid level, keep the liquid level of a standard.Liquid level is too low, then the dust-removal and desulfurizing decrease in efficiency; Liquid level is too high, and then equipment resistance increases, even the burning that can have influence on boiler makes the combustion chamber draft deficiency, other will influence processing parameter as Industrial Stoves such as sintering shaft furnaces.
The utility model impacts spraying twin-stage wet flue gas dust-removing desulfurating apparatus and is widely used in serious pollution industrial waste gases such as metallurgy sintered, chemical industry, building materials, papermaking, non-ferrous metal and administers, and more is applicable to the gas cleaning of boiler, kiln.
No matter the height of sulfur content in the fire coal, desulfuration efficiency can reach more than the 60-80%;
Efficiency of dust collection can reach more than 99%, the graceful blackness of lattice＜1 grade;
Cycling use of water rate 97% is replenished water consumption 3%, with production facility synchronous operation rates 100% such as boiler, kilns.
Flue gas contains temperature amount＜3%, and the air-introduced machine design does not have band water at front end and do not have corrosion phenomenon, and equipment and pipeline non-scaling do not stop up, do not corrode.
Alkaline waste waters such as boiler blowdown water can be introduced sedimentation basin.
Water circulating pump and pipeline will consider that anticorrosion is wear-resisting.
The desulfurating dust-removing equipment in service operation of mustn't cutting off the water supply.
The pH of recirculated water is necessary＞and 9, can add lime and regulate.
Ash settling basin is deashing in time, guarantees the desulfurization and dedusting effect.
In recirculated water, add a certain amount of caustic soda NaOH, can prevent the device interior fouling and improve desulfuration efficiency.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. one kind is impacted spraying twin-stage wet flue gas dust-removal and desulfurizing purifier, comprise desulfurizing tower, it is characterized in that: described desulfurizing tower bottom is provided with circulating sedimentation tank, in the circulating sedimentation tank is akaline liquid, one side of described circulating sedimentation tank is provided with the balance tank, be provided with dividing plate between described circulating sedimentation tank and the equilibrium water groove, the balance tank connects circulating pump, described circulating pump is provided with the multiple tracks pipeline and connects in the desulfurizing tower and be provided with the desulfurization shower nozzle in the water side, desulfurizing tower and circulating sedimentation tank junction tower body are outside equipped with air-introduced machine, described air-introduced machine smoke inlet end is connected with the sulfur-containing smoke gas pollution sources, the port of export is by in the desulfurizing tower of tilted tube introducing from top to bottom, the described tilted tube port of export is provided with impulse nozzle, and described impulse nozzle is over against the circulating sedimentation tank liquid level.
2. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 1, it is characterized in that: described impulse nozzle top is provided with impact baffle plate.
3. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 2, it is characterized in that: described circulating pump is provided with three road pipelines and connects in the desulfurizing tower, and per pass pipeline top all is equipped with dewatering plate.
4. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 3, it is characterized in that: described balance tank upper end is provided with the lime storage tank, described lime storage tank is connected by pipeline and equilibrium water groove, lime storage tank upper end connects a water inlet pipe, and circulating pump is connected by a pipeline and lime storage tank.
5. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 4 is characterized in that: be provided with valve on the pipeline that described circulating pump connects.
6. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 5, it is characterized in that: described desulfurizing tower, dewatering plate and impact baffle plate are the granite material.
7. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 6, it is characterized in that: described circulating sedimentation tank and equilibrium water groove are cement concrete constructions.
8. impact spraying twin-stage wet flue gas dust-removal and desulfurizing purifier as claimed in claim 7, it is characterized in that: the dividing plate height between described circulating sedimentation tank and the equilibrium water groove is lower than the circulating sedimentation tank liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200047953U CN201157750Y (en) | 2008-01-30 | 2008-01-30 | Impulse-spray double stage wet method flue gas dust-removing desulfurizing purification apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200047953U CN201157750Y (en) | 2008-01-30 | 2008-01-30 | Impulse-spray double stage wet method flue gas dust-removing desulfurizing purification apparatus |
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| CN201157750Y true CN201157750Y (en) | 2008-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200047953U Expired - Fee Related CN201157750Y (en) | 2008-01-30 | 2008-01-30 | Impulse-spray double stage wet method flue gas dust-removing desulfurizing purification apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707446A (en) * | 2015-03-17 | 2015-06-17 | 安徽师范大学 | Device for treating industrial waste gas by spraying method |
| TWI494153B (en) * | 2013-06-06 | 2015-08-01 | Ihi Corp | Desulfurizer |
| CN104864598A (en) * | 2015-03-30 | 2015-08-26 | 徐进廷 | Condensing hot water boiler |
| CN105032086A (en) * | 2015-08-18 | 2015-11-11 | 灵山县骄丰化工有限公司 | Water mist dust remover and circulatory system with water mister dust remover |
| CN105817122A (en) * | 2016-05-13 | 2016-08-03 | 芜湖飞尚非金属材料有限公司 | Tail gas desulfurization device for hot-blast stove |
| CN105879653A (en) * | 2014-12-12 | 2016-08-24 | 安徽盛运环保工程有限公司 | Impact material-returning type flue reactor |
| CN107051166A (en) * | 2017-06-09 | 2017-08-18 | 佛山亿达盈机电有限公司 | Submersible type dusting and desulfuring system |
| CN110026080A (en) * | 2019-04-28 | 2019-07-19 | 广州广一大气治理工程有限公司 | A kind of combined system and technique of harmless treatment organic exhaust gas |
-
2008
- 2008-01-30 CN CNU2008200047953U patent/CN201157750Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI494153B (en) * | 2013-06-06 | 2015-08-01 | Ihi Corp | Desulfurizer |
| CN105879653A (en) * | 2014-12-12 | 2016-08-24 | 安徽盛运环保工程有限公司 | Impact material-returning type flue reactor |
| CN104707446A (en) * | 2015-03-17 | 2015-06-17 | 安徽师范大学 | Device for treating industrial waste gas by spraying method |
| CN104707446B (en) * | 2015-03-17 | 2017-05-31 | 安徽师范大学 | A kind of spray process abatement equipment of industrial waste gas |
| CN104864598A (en) * | 2015-03-30 | 2015-08-26 | 徐进廷 | Condensing hot water boiler |
| CN105032086A (en) * | 2015-08-18 | 2015-11-11 | 灵山县骄丰化工有限公司 | Water mist dust remover and circulatory system with water mister dust remover |
| CN105817122A (en) * | 2016-05-13 | 2016-08-03 | 芜湖飞尚非金属材料有限公司 | Tail gas desulfurization device for hot-blast stove |
| CN107051166A (en) * | 2017-06-09 | 2017-08-18 | 佛山亿达盈机电有限公司 | Submersible type dusting and desulfuring system |
| CN110026080A (en) * | 2019-04-28 | 2019-07-19 | 广州广一大气治理工程有限公司 | A kind of combined system and technique of harmless treatment organic exhaust gas |
| CN110026080B (en) * | 2019-04-28 | 2023-12-19 | 广州广一大气治理工程有限公司 | Combined system and process for innocent treatment of organic waste gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090123 Address after: 214, Gangcheng Avenue, Qinhuangdao, Hebei Province: 066000 Patentee after: Qinhuangdao Double Wheel Environmental Protection Technology Co., Ltd. Address before: Qinhuangdao Hebei double wheel environmental protection technology Co., Ltd., postcode: 066000 Patentee before: Jiang Shuyu |
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| ASS | Succession or assignment of patent right |
Owner name: QINHUANGDAO BI-WHELL ENVIRONMENTAL PROTECTION TECH Free format text: FORMER OWNER: JIANG SHUYU Effective date: 20090123 |
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| C17 | Cessation of patent right | ||
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Granted publication date: 20081203 Termination date: 20130130 |