CN103785288A - Wet desulphurization tower and deep flue gas purification system - Google Patents
Wet desulphurization tower and deep flue gas purification system Download PDFInfo
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- CN103785288A CN103785288A CN201410037655.6A CN201410037655A CN103785288A CN 103785288 A CN103785288 A CN 103785288A CN 201410037655 A CN201410037655 A CN 201410037655A CN 103785288 A CN103785288 A CN 103785288A
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Abstract
The invention discloses a wet desulphurization tower which comprises a tower body, multiple demisters, a corrosion-resistant ultraviolet lamp tube, a lamp tube bracket, a spraying device and a spraying device bracket. The demisters, the lamp tube bracket and the spraying device bracket are fixed in the tower body; the demisters are loaded with nanometer TiO2 photocatalysts; the corrosion-resistant ultraviolet lamp tube is fixed on the lamp tube bracket. When flue gas flows through the demisters, the nanometer TiO2 photocatalysts promote sulfides and the like in the flue gas to react under ultraviolet irradiation, and the contents of sulfur and nitro in the flue gas are reduced. The spraying device is fixed on the spraying device bracket and comprises a water inlet pipe and a first nozzle used for spraying and washing the demisters, wherein one end of the water inlet pipe is positioned outside the tower body, and the other end of the water inlet pipe is communicated with the first nozzle; when the surfaces of the nanometer TiO2 photocatalysts are subjected to scale formation or dust deposition, dirt or dust on the surfaces of the nanometer TiO2 photocatalysts is removed by utilizing the spraying device, so that the flue gas can be continuously subjected to desulphurization and denitration through the nanometer TiO2 photocatalysts.
Description
Technical field
The present invention relates to flue gas desulfurization technique field, particularly a kind of wet desulfuration tower, also relates to a kind of flue gas deep purifying system that comprises above-mentioned wet desulfuration tower.
Background technology
Wet desulfuration tower is the device for coal-fired power plant or other local flue gases are carried out to desulfurization, comprise tower body and be fixed on three layers of demister in tower body, bottom at tower body is provided with alkali lye, and pending flue gas enters from the bottom of tower body, carries out desulphurization and denitration after alkali lye.But flue gas easily forms vapour-liquid and carries secretly in desulphurization and denitration process, the vapour-liquid in flue gas is carried secretly and is not only contained moisture, is also dissolved with sulfuric acid, sulfate, SO
2deng, therefore, demister is set in wet desulfuration tower, when smoke gas flow is during through demister, flue gas and demister bump, and reduce the vapour-liquid of flue gas to carry secretly, and still, smoke gas flow, in the time of demister, also has vapour-liquid to carry secretly, and the flue gas entering in atmosphere also contains sulphur, nitre etc.
Therefore, how solving in the flue gas to entering atmosphere, the higher problem of content of nitre, is those skilled in the art's technical issues that need to address.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of wet desulfuration tower, can effectively reduce the content of sulfureous in flue gas, nitre.
Wet desulfuration tower of the present invention, comprises tower body and is fixed on the multiple demisters in described tower body, wherein also comprise corrosion-resistant quartz burner, tube stand, spray equipment and spray equipment support, described demister is for being loaded with nano-TiO
2the demister of photocatalyst, described tube stand is fixed or is set up in described tower body, and described corrosion-resistant quartz burner is fixed on described tube stand, can irradiate nano-TiO
2photocatalyst, described spray equipment support is fixed or is set up in described tower body, and described spray equipment is fixed on described spray equipment support, includes water pipe and the first shower nozzle for demister described in hydro-peening, one end of described oral siphon is positioned at outside described tower body, and one end is communicated with described the first shower nozzle.
Wet desulfuration tower of the present invention, wherein at least one demister in multiple described demisters comprises the nano-TiO that carries that is provided with the demister support of air-vent and is placed on described demister support top
2the Immesion active carbon of photocatalyst, described demister support comprises bracing frame and leakproof frame, and support frame as described above is fixed or is set up on described tower body, and described leakproof frame is fixed or is set up on support frame as described above, and described Immesion active carbon is positioned on described leakproof frame.
Wet desulfuration tower of the present invention, wherein said bracing frame is Frame for supporting parallel pipes, described leakproof frame is glass orifice plate.
Wet desulfuration tower of the present invention, wherein said corrosion-resistant quartz burner comprises seal glass cover and is located at the quartz burner in described seal glass cover.
Wet desulfuration tower of the present invention, the inwall of wherein said tower body is loaded with nano-TiO
2photocatalyst coating, described spray equipment also comprises for the nano-TiO on tower body described in hydro-peening
2the second shower nozzle of photocatalyst, described the second shower nozzle is communicated with described oral siphon.
Wet desulfuration tower of the present invention, the thickness of wherein said Immesion active carbon is 0.05m-0.2m.
Wet desulfuration tower of the present invention, is wherein respectively equipped with described corrosion-resistant quartz burner and described spray equipment between demister described in the top of demister and every adjacent two layers described in the superiors.
Flue gas deep purifying system of the present invention, comprises wet desulfuration tower, flue and chimney, and described chimney is communicated with described wet desulfuration tower by described flue, and wherein said wet desulfuration tower is the wet desulfuration tower described in above-mentioned middle any one.
Flue gas deep purifying system of the present invention, wherein said flue comprises flue body, be fixed in described flue body, be provided with the flue demister of air-vent, be fixed on flue spray equipment support that described flue body is interior or described flue basis is external and be fixed on described flue spray equipment support, for cleaning the flue spray equipment of described flue demister.
Flue gas deep purifying system of the present invention, wherein said flue demister is for being loaded with nano-TiO
2the flue demister of photocatalyst, is also provided with flue tube stand in described flue body, and described flue tube stand is fixed with the corrosion-resistant quartz burner of flue.
Flue gas deep purifying system of the present invention, wherein said flue demister comprises flue demister support and is loaded with nano-TiO
2the Immesion active carbon of photocatalyst, described flue demister support comprises the flue glass orifice plate that is fixed on the intrinsic flue Frame for supporting parallel pipes of described flue and is fixed on described Frame for supporting parallel pipes, described Immesion active carbon is placed on described flue glass orifice plate, on described flue body, be also provided with discharge outlet, described discharge outlet is provided with water discharging valve.
With respect to prior art, wet desulfuration tower provided by the invention comprises tower body, multiple demister, corrosion-resistant quartz burner, tube stand, spray equipment and spray equipment support.Demister, tube stand, spray equipment support are fixed in tower body, are loaded with nano-TiO on demister
2photocatalyst, corrosion-resistant quartz burner is fixed on tube stand.When smoke gas flow is during through demister, nano-TiO
2photocatalyst can impel sulphur, nitre etc. in flue gas to react under ultraviolet irradiation, reduced the content of sulfureous in flue gas, nitre.Spray equipment is fixed on spray equipment support, and spray equipment includes water pipe and the first shower nozzle for hydro-peening demister, and one end of oral siphon is positioned at outside tower body, and one end is communicated with the first shower nozzle, works as nano-TiO
2after photocatalyst surface fouling or laying dust, utilize spray equipment by nano-TiO
2the dirt of photocatalyst surface or dust are removed, so that nano-TiO
2photocatalyst can constantly carry out desulphurization and denitration etc. to flue gas.
Below in conjunction with accompanying drawing, wet desulfuration tower of the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of flue gas deep purifying system of the present invention;
Fig. 2 is the scheme of installation of tube stand and spray equipment support in the present invention;
Fig. 3 is the structural representation of glass orifice plate in the present invention.
In Fig. 1-Fig. 3:
Tower body-1, demister-2, tube stand-3, the first vertical flue body-4, the second vertical flue body-5, flue demister-6, flue tube stand-7, chimney-8, oral siphon-9, spray equipment support-10, glass orifice plate-11.
The specific embodiment
Core of the present invention is to provide a kind of wet desulfuration tower that can effectively reduce sulfureous in flue gas, nitre content.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 2 and Fig. 3, in a kind of specific embodiment, wet desulfuration tower provided by the invention comprises tower body 1, three demisters 2, corrosion-resistant quartz burner, tube stand 3, spray equipment and spray equipment supports 10.On tower body 1, on the sidewall between three demisters 2, be provided with nano-TiO
2photocatalyst coating, three demisters 2 are fixed in tower body 1, and one of them demister 2 is ridge formula demister, on ridge formula demister, scribbles nano-TiO
2photocatalyst, two other demister comprises demister support and is placed on the TiO that is loaded with of demister support top
2the Immesion active carbon of photocatalyst.Demister support comprises bracing frame and is provided with the leakproof frame of air-vent.More specifically, bracing frame is Frame for supporting parallel pipes, and Frame for supporting parallel pipes can be stainless-steel pipe bracket, also can be carbon steel pipes bracket, at the arranged outside corrosion-inhibiting coating of carbon steel pipes bracket, Frame for supporting parallel pipes is placed on the boss of tower body 1 inner side, and leakproof frame is glass orifice plate 11, be placed on the top of Frame for supporting parallel pipes, Immesion active carbon is placed on glass orifice plate 11, and when smoke gas flow is during through demister 2, flue gas can produce collision with demister 2, reduce the vapour-liquid in flue gas and carried secretly, and nano-TiO
2photocatalyst can impel sulphur, nitre etc. in flue gas to react under ultraviolet irradiation, further reduced the content of sulfureous in flue gas, nitre.
Preferentially selecting leakproof frame is glass orifice plate 11, and the corrosion-resistant quartz burner that can make to be positioned at glass orifice plate 11 belows shines the Immesion active carbon of glass orifice plate 11 tops, increases nano-TiO
2the intensity of photocatalyst desulphurization and denitration, demercuration, certainly, also can select stainless steel mesh etc.In order to make corrosion-resistant quartz burner can at utmost shine Immesion active carbon, the thickness of preferentially selecting Immesion active carbon is 0.05m-0.2m.
Spray equipment support 10 is placed on the boss of tower body 1 inner side, can be arranged in parallel, also can arranged crosswise, spray equipment is fixed on spray equipment support 10, spray equipment includes water pipe 9, the first shower nozzle and the second shower nozzle, the first shower nozzle and the second shower nozzle are all communicated with oral siphon 9, on oral siphon 9, are positioned at outside tower body 1 away from one end of the first shower nozzle and the second shower nozzle, and the first shower nozzle is for cleaning the nano-TiO on demister 2
2photocatalyst, the second shower nozzle is for cleaning the nano-TiO on tower body 1
22 photocatalysts, work as nano-TiO
2after photocatalyst surface fouling or laying dust, utilize spray equipment by nano-TiO
2the dirt of photocatalyst surface or dust are removed, so that nano-TiO
2photocatalyst can constantly carry out desulphurization and denitration, demercuration etc. to flue gas.
Above the superiors' demister 2 and between every adjacent two layers demister 2, be respectively equipped with corrosion-resistant quartz burner and spray equipment, can irradiate to greatest extent nano-TiO
2photocatalyst, increases the effect of desulfurization, demercuration and denitration.
Preferentially selecting the first shower nozzle and the second shower nozzle that are positioned at the superiors' demister 2 tops is atomizer, and being positioned at the first shower nozzle and second shower nozzle of below is common shower nozzle, carries secretly with the vapour-liquid reducing in flue gas.
Can establish a control panel in the outside of tower body 1, control panel and corrosion-resistant quartz burner can communicate to connect, to facilitate the switching of controlling corrosion-resistant quartz burner.
The present invention also provides a kind of flue gas deep purifying system, comprise wet desulfuration tower, flue and chimney 8, chimney 8 is communicated with wet desulfuration tower by flue, wet desulfuration tower is above-mentioned wet desulfuration tower, the beneficial effect that wet desulfuration tower is concrete, this flue gas deep purifying system all has, and repeats no more herein.
Flue comprises flue body, flue demister 6, the corrosion-resistant quartz burner of flue, flue spray equipment, flue spray equipment support 10 and flue tube stand 7.Flue demister 6 is located in flue body, which is provided with air-vent, and is loaded with nano-TiO
2photocatalyst, flue tube stand 7 is fixed in flue body, and the corrosion-resistant quartz burner of flue is fixed on flue tube stand 7, when smoke gas flow is during through flue body, nano-TiO
2photocatalyst can impel sulphur, nitre etc. in flue gas to react under ultraviolet irradiation, reduce the content of sulfureous in flue gas, nitre, flue spray equipment support 10 be fixed in flue body or flue this is external, flue spray equipment is fixed on flue spray equipment support 10, be used for cleaning flue demister 6, work as nano-TiO
2after photocatalyst surface fouling or dust stratification, utilize flue spray equipment by nano-TiO
2the dirt of photocatalyst surface or dust are removed, so that nano-TiO
2photocatalyst can constantly carry out desulphurization and denitration etc. to flue gas.
The corrosion-resistant quartz burner of flue comprises seal glass cover and the quartz burner in seal glass cover is set, because glass has the features such as corrosion-resistant, moistureproof, quartz burner is placed on to seal glass cover inner structure simple, can protection against the tide, anticorrosion etc., improve service life.
In a kind of specific embodiment, flue demister 6 comprises flue demister support and is placed on flue demister support, and is loaded with nano-TiO
2the Immesion active carbon of photocatalyst, flue demister support comprises bracing frame and leakproof frame, bracing frame is stainless-steel pipe bracket, leakproof frame is glass orifice plate, stainless-steel pipe bracket is fixed on flue body, glass orifice plate is placed on stainless-steel pipe bracket, and Immesion active carbon is positioned on stainless-steel pipe bracket.
Further, flue body comprises horizontal flue body and vertical flue body, flue demister 6 is positioned at vertical flue body, vertically flue body comprises the first vertical flue body 4 and the second larger vertical flue body 5 of diameter that diameter is less, the internal diameter of the second vertical flue body 5 is greater than the external diameter of the first vertical flue body 4, and one end of the second vertical flue body 5 is sealed in the outside of the first vertical flue body 4.Stainless-steel pipe bracket surrounds loop configuration, glass orifice plate is also loop configuration, be located at the inner side of stainless-steel pipe bracket, Immesion active carbon arranges the inner side of glass orifice plate, lay one deck along annular, lay after Immesion active carbon, then lay successively glass orifice plate and stainless steel tube bracket in the inner side of Immesion active carbon, Immesion active carbon is fixed in the space being formed by layer glass orifice plate.The internal diameter of flue demister 6 is identical with the internal diameter of the first vertical flue body 4, flue demister 6 is positioned at the second vertical flue body 5, its one end is connected with the bottom end seal of the first vertical flue body 4, the other end utilizes guard seal, the endoporus of flue demister 6 is communicated with the first vertical flue body 4, outside is communicated with the second vertical flue body 5, when smoke gas flow is after the first vertical flue body 4, enters in the second vertical flue body 5 through flue demister 6.
Certainly, also can, vertically in flue body, annular lattice coral being set, arrange and be loaded with nano-TiO at annular Ge Shannei
2the filter cloth of photocatalyst.
Be equipped with the corrosion-resistant quartz burner of flue in the inside and outside both sides of flue demister 6, flue tube stand 7 is fixed on the stainless steel tube bracket of flue demister 6.And the thickness of preferentially selecting Immesion active carbon is 0.1m-1.5m, so that the corrosion-resistant quartz burner of flue can shine all Immesion active carbons, improve the utilization rate of Immesion active carbon.The bottom of the second vertical flue body 5 is connected with horizontal flue body, and discharge outlet is located on horizontal flue body, and discharge outlet and the second vertical flue body 5 liquidate, so that the water of flue spray equipment ejection can all be discharged from flue body.
In this concrete preferred version of implementing, on baffle plate, be provided with conical protrusions, the height of conical protrusions reduces to the outside of baffle plate gradually from the middle part of baffle plate, so that the water being sprayed on baffle plate can all flow away.The shape that is arranged on the sewage draining exit on horizontal flue body can be cone-shaped groove, so that water can all be discharged in flue body.
In the another kind of specific embodiment, flue also comprises sealing device, rotating shaft and drive unit, and flue demister is for being loaded with nano-TiO
2the filter cloth of photocatalyst, rotating shaft is provided with one, and its axis direction is horizontal direction, and is positioned at outside flue, and filter cloth is fixed in rotating shaft, and the position that filter cloth is set on flue body seals by sealing device.
Sealing device comprises rectangular seal housing and is fixed on the seal fan outside rectangular seal housing, and seal fan applies malleation in rectangular seal housing, prevents that flue gas from overflowing from flue body.The middle part of rectangular seal housing is provided with the through hole that runs through its both sides, flue body passes from the through hole of rectangular seal housing, flue body disconnects, and is provided with the gap of passing for filter cloth, and the bottom of rectangular seal housing and two relative sidewalls are also provided with the gap of passing for filter cloth.Filter cloth is fixed in rotating shaft through the sidewall of flue body and rectangular seal housing, and the gap of flue body and rectangular seal housing all seals by sealing gasket, in the time of flue gas process filter cloth, utilizes nano-TiO
2photocatalyst is to flue gas desulfurization, denitration.Rotating shaft is arranged in rectangular seal housing, and two ends are positioned at the outside of rectangular seal housing, is fixedly connected with the output shaft of drive unit, and flue tube stand is arranged in rectangular seal housing, is equipped with the corrosion-resistant quartz burner of flue in the both sides of filter cloth.Flue spray equipment is also arranged in rectangular seal housing, on rectangular seal housing, offers discharge outlet.
In the another kind of specific embodiment, flue comprises sealing device, four rotating shafts and drive unit, and flue demister is for being loaded with nano-TiO
2the filter cloth of photocatalyst, the axis direction of four rotating shafts is vertical direction, the two ends of filter cloth are fixedly connected with, and four rotating shafts are set in to the inner side of filter cloth, form the rectangular shape of open at both ends.Two less sidewalls of the rectangular seal housing of sealing device are provided with the gap of passing for filter cloth, and rotating shaft is all positioned at the outside of rectangular seal housing, and other structures of sealing device are identical with above-mentioned sealing device.
Can make a limit of filter cloth be located in the horizontal flue body of flue body, the rectangular opening that the vertical flue body of flue body surrounds from filter cloth, pass, also can make two limits relative on filter cloth all arrange in the horizontal flue body of flue body, can on one or two other limit of filter cloth, flue spray equipment be set, flue spray equipment support can be rectangular housing, the relative both sides of rectangular housing are provided with gap, filter cloth passes from gap, rotating shaft is positioned at the outside of rectangular housing, the bottom of rectangular housing arranges discharge outlet, the shower nozzle of flue spray equipment arranges in flue spray equipment support, in the time being arranged in the filter cloth fouling of flue body or dust stratification, rotating shaft, filter cloth to be cleaned is turned in flue spray equipment support, utilize flue spray equipment to clean filter cloth.While flue spray equipment being all set on two limits of filter cloth, what can make the ejection of flue spray equipment is weak base water, an ejection be clear water.
Certainly, can in flue body, be provided with simultaneously and be loaded with nano-TiO
2the filter cloth of photocatalyst and be loaded with nano-TiO
2the Immesion active carbon of photocatalyst.
Certainly, flue also can only include flue body, flue demister, flue spray equipment and flue spray equipment support, and flue demister is filter cloth being impregnated with buck etc., repeats no more herein.
The above embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (11)
1. a wet desulfuration tower, comprises tower body and is fixed on the multiple demisters in described tower body, it is characterized in that: also comprise corrosion-resistant quartz burner, tube stand, spray equipment and spray equipment support, described demister is for being loaded with nano-TiO
2the demister of photocatalyst, described tube stand is fixed or is set up in described tower body, and described corrosion-resistant quartz burner is fixed on described tube stand, can irradiate nano-TiO
2photocatalyst, described spray equipment support is fixed or is set up in described tower body, and described spray equipment is fixed on described spray equipment support, includes water pipe and the first shower nozzle for demister described in hydro-peening, one end of described oral siphon is positioned at outside described tower body, and one end is communicated with described the first shower nozzle.
2. wet desulfuration tower according to claim 1, is characterized in that: at least one demister in multiple described demisters comprises the nano-TiO that carries that is provided with the demister support of air-vent and is placed on described demister support top
2the Immesion active carbon of photocatalyst, described demister support comprises bracing frame and leakproof frame, and support frame as described above is fixed or is set up on described tower body, and described leakproof frame is fixed or is set up on support frame as described above, and described Immesion active carbon is positioned on described leakproof frame.
3. wet desulfuration tower according to claim 2, is characterized in that: support frame as described above is Frame for supporting parallel pipes, and described leakproof frame is glass orifice plate.
4. wet desulfuration tower according to claim 3, is characterized in that: described corrosion-resistant quartz burner comprises seal glass cover and is located at the quartz burner in described seal glass cover.
5. according to the wet desulfuration tower described in any one in claim 2-4, it is characterized in that: the inwall of described tower body is loaded with nano-TiO
2photocatalyst coating, described spray equipment also comprises for the nano-TiO on tower body described in hydro-peening
2the second shower nozzle of photocatalyst, described the second shower nozzle is communicated with described oral siphon.
6. wet desulfuration tower according to claim 5, is characterized in that: the thickness of described Immesion active carbon is 0.05m-0.2m.
7. wet desulfuration tower according to claim 8, is characterized in that: described in the superiors, described in the top of demister and every adjacent two layers, between demister, be respectively equipped with described corrosion-resistant quartz burner and described spray equipment.
8. a flue gas deep purifying system, comprises wet desulfuration tower, flue and chimney, and described chimney is communicated with described wet desulfuration tower by described flue, it is characterized in that: described wet desulfuration tower is the wet desulfuration tower described in any one in claim 1-7.
9. flue gas deep purifying system according to claim 8, it is characterized in that: described flue comprises flue body, be fixed in described flue body, be provided with the flue demister of air-vent, be fixed on flue spray equipment support that described flue body is interior or described flue basis is external and be fixed on described flue spray equipment support, for cleaning the flue spray equipment of described flue demister.
10. flue gas deep purifying system according to claim 9, is characterized in that: described flue demister is for being loaded with nano-TiO
2the flue demister of photocatalyst, is also provided with flue tube stand in described flue body, and described flue tube stand is fixed with the corrosion-resistant quartz burner of flue.
11. flue gas deep purifying systems according to claim 10, is characterized in that: described flue demister comprises flue demister support and is loaded with nano-TiO
2the Immesion active carbon of photocatalyst, described flue demister support comprises the flue glass orifice plate that is fixed on the intrinsic flue Frame for supporting parallel pipes of described flue and is fixed on described Frame for supporting parallel pipes, described Immesion active carbon is placed on described flue glass orifice plate, on described flue body, be also provided with discharge outlet, described discharge outlet is provided with water discharging valve.
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| CN201410037655.6A CN103785288B (en) | 2014-01-26 | 2014-01-26 | Wet desulfuration tower and flue gas advanced purification system |
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| CN108905619A (en) * | 2018-07-24 | 2018-11-30 | 王鹏 | A kind of administering method of industrial waste gas |
| CN108905619B (en) * | 2018-07-24 | 2021-02-02 | 山东乐辰节能环保科技有限公司 | Treatment method of industrial waste gas |
| CN112090592A (en) * | 2020-08-27 | 2020-12-18 | 杭州易佑农业生产资料有限公司 | Waste gas purification device for asphalt production workshop |
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