CN2600721Y - Improved desulfurization dust removing device - Google Patents
Improved desulfurization dust removing device Download PDFInfo
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- CN2600721Y CN2600721Y CN 03228644 CN03228644U CN2600721Y CN 2600721 Y CN2600721 Y CN 2600721Y CN 03228644 CN03228644 CN 03228644 CN 03228644 U CN03228644 U CN 03228644U CN 2600721 Y CN2600721 Y CN 2600721Y
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Abstract
An improved desulphurization dedust device comprises a nozzle, a gas access pipeline, a lye supply device, an ash settling pond and a desulphurization dedust device etc. The desulphurization dedust device comprises a water bath tube containing a certain amount of water, an gas-water dividing tube, a desulphurization dedust tube arranged with a nozzle for the spraying and sprinkle of the gas entry into the desulphurization dedust tube extends into the water bath tube and a certain distance is kept between the surface of the water contained in the water bath tube and the desulphurization dedust tube, a stopping gas overflow and a non-power swirl plate device. The spraying and sprinkle of the lye water can be generated by each assembly part of the desulphurization dedust device of the utility model to play the roles of the water curtain, swirl, the water surface for the impaction of the water bath tube, eddy current and the thermal vaporization of the reaction flue gas, which can effectively to form the continuous and multiple absorption of SO2, wetting and sticking of the dust, and finally the SO2 and the dust can be almost completely removed.
Description
Invention field
The utility model relates to a kind of desulfation dust-extraction device, especially a kind of modified desulfation dust-extraction device with novel structure.
Background of invention
In the prior art, desulfation dust-extraction device mainly is desulfurization and the dedusting that is used for Industrial Boiler and various kilns.Their most of desulfation dust-extraction devices are to be combined by electrostatic precipitation and two kinds of different equipment of function of spraying desulfurization, and electrostatic dust collection equipment is except cost own is expensive, and power consumption is big, make manufacturing cost and producing cost high all the time.In addition, floor space is also big and be unfavorable for repairing and safeguard after being assembled into complete machine, so seldom use now.On market, available more representational desulfurizing dust-collector is a wet type alkali lye sprayed tank tower now.This jar tower uses stainless steel material to make, and adopts spray to carry out dedusting and desulfurization.Although it can reach the technical indicator of environmental requirement in dedusting and desulfurization, but because its inner complex structure, in the process of device operation, the water capacity of the resistance of system, liquid-gas ratio and flue gas is all obviously higher, and manufacturing cost and comprise power and operating cost such as material consumption also very high.In addition, the jar tower very easily corrosion under the effect of soda acid gas-liquid with stainless steel material is made causes reduce service life, and often needs repairing and change parts.
In order to solve the problem of desulfurizing dust-collector said structure and existence in service, the applicant had once disclosed a kind of " desulfation dust-extraction device " in Chinese utility model patent number 00216479.5.This device comprises nozzle, smoke inlet and outlet conduit, alkali lye feeding mechanism, underground ash settling basin, circulating water pool, alkali lye pond and desulfurizing dust-collector, wherein, desulfurizing dust-collector is made also by granite and reasonably is separated into a spray chamber, a swirling chamber and a dewatering station in it.SO in the boiler discharge
2Gas and flue dust when the spray chamber, flue gas can indoorly be adorned the vaporific spraying that nozzle produces and absorbs by it, big soot dust granule is at the recirculated water that contact with water liquid at the bottom of afterwards falling into the chamber with deadweight.Flue gas after spray chamber is handled will forward swirling chamber to, and make the SO in the flue gas under the effect of swirling chamber generation whirlpool
2Further liquid and gas absorb, and reduce the generation of steam simultaneously.At last, flue gas enters dewatering station from swirling chamber, makes in the flue gas aqueous vapor form the globule to reach further minimizing aqueous vapor by the bump wall that is provided with in the dewatering station.The be in operation water capacity of resistance, liquid-gas ratio and flue gas of system of this desulfation dust-extraction device is obviously less and have process stabilizing, and dedusting and desulfuration efficiency height reach more than the desired index of environmental administration.Yet because this device is to make and use underground ash settling basin with grouan material, it also exists Heavy Weight, floor space is big, structure is complicated, installation and maintenance are inconvenient and operate problems such as labour intensity is big.
The general introduction of invention
The purpose of this utility model be provide for the defective that overcomes said apparatus a kind of the device structure, layout and manufacturing thereof with material on through improved modified desulfation dust-extraction device.
The technical scheme that realizes above-mentioned purpose is: modified desulfation dust-extraction device of the present utility model comprises nozzle, smoke inlet and outlet conduit, alkali lye feeding mechanism, ash settling basin, circulating water pool, alkali lye pond, desulfurizing dust-collector, and wherein, desulfurizing dust-collector comprises:
One water bath tube, a carbonated drink type cylinder, water bath tube and carbonated drink type cylinder are made an integral body to constitute an oval-shaped associating cylindrical shell, and they are that top perforate that be separated out by a dividing plate with top perforate and by dividing plate communicates with each other, in addition, described water bath tube is provided with an apopore on the opening that enters that is provided with a flue gas on its top board, its underpart outer wall, then be contained with a certain amount of water in its tube; The top board of described water type cylinder is provided with the discharge outlet that an opening and that purifies the flue gas outflow is positioned at the bottom;
One desulfurization and dedusting pipe, it by a minor diameter go up pipe, a large diameter pipe down and a tapering part is formed and interconnect by the latter and to be integral, described desulfurization and dedusting pipe is installed on the water bath tube by the opening at water bath tube top, and makes pipe be positioned at the upper and lower pipe of water bath tube top board to stretch into water bath tube and the water surface internal water containing with it and keep certain distance;
One non-return gas spilling water device, it comprises that a water inlet pipe, has the three-way pipe and overflow valve of necking part and overfall, overfall also is assemblied on the apopore on the outer wall of water bath tube bottom so that return-air spilling water device is communicated with water bath tube by water inlet pipe, the oral area of overfall is under the base plane of following pipe certain distance usually and sentences the water surface elevation that keeps water in the water bath tube, and overflow valve is placed in the necking down pipe;
One overflowing board device, it is a unpowered type swirling flow blower fan, is installed in the tapering part of desulfurization and dedusting pipe;
Be connected so that the flue gas that enters the desulfurization and dedusting pipe is sprayed and spray in the last pipe of described nozzle installation desulfurization and dedusting pipe and with the supply pipe of alkali lye feeding mechanism.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, described water bath tube and carbonated drink type cylinder respectively are a discrete columnar cylindrical shell, they are provided with a perforate separately on external wall of upper portion, and can be connected in each perforate and be linked together and be connected with each other logical symmetrically by a tube connector.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, the bottom of described water bath tube also is provided with an outstanding dust stratification groove downwards.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, described overflowing board device is made by stainless steel material.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, described ash settling basin is one to be placed in ground ground ash settling basin.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, described nozzle is two, one is the atomizing nozzle, one is the fountain nozzle, they on the desulfurization and dedusting pipe in the pipe between the upper and lower every layout.
The desulfurizing dust-collector of modified desulfation dust-extraction device as previously discussed, wherein, described desulfurization and dedusting pipe, water bath tube, non-return gas spilling water device and carbonated drink type cylinder are protection lining steel and all be covered with one deck rubber on their inwall.
Therefore, therefore, desulfurizing dust-collector adopts nozzle, water bath tube, carbonated drink type cylinder, desulfurization and dedusting pipe and overflowing board device structure combining in device of the present utility model, they can produce the effects such as heat vaporization of the water surface, eddy current and the reaction flue gas of alkali lye water spray, spray, formation water curtain, swirling flow, impact water bath tube, device is constituted in the desulfurization and dedusting process effectively continuously, repeatedly absorb SO
2With soak, cling flue dust, at last they are almost completely disposed.Desulfurizing dust-collector is reliable, and dust removing effects is remarkable, the grit of common＞1.5 μ, and efficiency of dust collection is 95～99%.Recirculated water alkalescence PH 〉=8.5, desulfuration efficiency: 90～95%.
Other characteristics of desulfation dust-extraction device comprise: desulfurizing dust-collector can be located on the ground ash settling basin that is above the ground level, and does not need any equipment, just can directly the mud buck be entered in the pond and from the pond and dispose.Whole device has compact conformation, and is in light weight, easy for installation, last detective.The desulfurization and dedusting pipe is made material can all select stainless steel (1cr18Ni9Ti) for use, all the other material selection steels and liner rubber anti-corrosive.In day-to-day operation, can generation equipment do not split exhausted and leak.Return-air spilling water device is guaranteed water-bath bucket stable level, stops atmosphere to be refunded in the desulfurizing dust-collector flue gas again, guarantees that coefficient of excess air does not exceed standard here.In addition, all right batch production of desulfurizing dust-collector, mass manufacturing are produced and convenient transportation.
Brief description of drawings
Fig. 1 is the rough package drawing of the utility model desulfation dust-extraction device;
Fig. 2 is the profile of desulfurizing dust-collector among Fig. 1;
Fig. 3 a and Fig. 3 b are the overflowing board front view and the cutaway views of desulfurizing dust-collector;
Fig. 4 is the cutaway view of non-return gas spilling water device.
The detailed description of preferred embodiment
See also Fig. 1 and Fig. 2, there is shown the situation of the general layout of the utility model modified desulfation dust-extraction device.Desulfation dust-extraction device mainly comprises nozzle 1, smoke inlet and outlet conduit 2,3, alkali lye feeding mechanism 4, ground ash settling basin 5, circulating water pool 6 and alkali lye pond 7 and desulfurizing dust-collector 8, wherein, desulfurizing dust-collector comprises a water bath tube 10, a carbonated drink type cylinder 11, a desulfurization and dedusting pipe 12, a non-return gas spilling water device 13 and an overflowing board device 14.
Purify the opening 112 of exhanst gas outlet during the cylindrical shell of carbonated drink type cylinder 11 is provided with as cylindrical shell on top or top board 111, be provided with a discharge outlet 113 in the bottom of carbonated drink type cylinder 11.Carbonated drink type cylinder 11 also comprises one grade of pipe 110, and this grade pipe 110 is inserted in the opening 112 of carbonated drink type cylinder 11 and the certain distance that extends internally.The upper end of shelves pipe 110 is connected with outlet conduit 3.The effect of shelves pipe is to stop the purification flue gas that enters carbonated drink type cylinder 11 by water bath tube 10 directly to flow to outlet conduit 3 from opening 112.
Desulfurization and dedusting pipe 12, it by a minor diameter go up the large diameter pipe down of pipe 121, one 122 is connected with one manage 121 and the tapering part 123 of following pipe form.This desulfurization and dedusting pipe 12 is installed on the water bath tube 10 by the opening 102 at water bath tube 10 tops, and make pipe 121 be positioned at water bath tube 10 above, and make down pipe 122 be positioned at water bath tube 10 with smoke inlet pipeline 2 connected sums and the water surface maintenance certain distance h of the water contained with water bath tube 10.In addition, desulfurization and dedusting pipe 12 also can be provided with a ring flange 135 near on the following pipe 122 of tapering part 123, and is fixed on by this ring flange 135 on the top board 101 of water bath tube 10.
See also Fig. 1 and Fig. 4, non-return gas spilling water device 13 has a three-way pipe and overflow valve 133 that a water inlet pipe 131, has necking down pipe portion 135 and overfall 134.Water inlet pipe 131 is assemblied on the hole 103 of water bath tube cylindrical shell 100 bottom outer walls to be communicated with water bath tube 10, overfall 133 is under the base plane of following pipe 121 of desulfurization and dedusting pipe 12 (a distance) usually to keep the water surface elevation of water in the water bath tube, overflow valve 133 can be with the saline bottle of for example necessarily weighing, and is placed in the necking down pipe portion 135 of three-way pipe 132.
The anticorrosion lining of one deck rubber is made and be covered with on the wall to water bath tube 10, carbonated drink type cylinder 11 and desulfurization and dedusting pipe 12 within it by steel.
Seeing also Fig. 1 and Fig. 3 a and 3b overflowing board device 14 is specially designed motorless swirling flow blower fans, is flat.The overflowing board device comprises 12～18 blades 141, the pitch angle alpha will of each blade, and α is that the edge of 18～22 degree and adjacent two blades overlaps in vertical direction, and is installed between the tapering part 123 and following pipe 121 of desulfurization and dedusting pipe.Overflowing board device 14 can be made by plastics or stainless steel material.
On the other hand of the present utility model, water bath tube 10 and carbonated drink type cylinder 11 also can be made into discrete cylinder or half elliptic cylindrical shell (not drawing among the figure), and the external wall of upper portion of each cylindrical shell is provided with a perforate.Water bath tube 10 and carbonated drink type cylinder 11 can be linked together and be connected with each other logical with a tube connector symmetrically.
Please consult Fig. 2 again, the bottom of described water bath tube 10 and carbonated drink type cylinder 11 is provided with common footing 106,116, the upper end of ash settling basin both sides, described ground is provided with supporting base (not drawing among the figure), described water bath tube 10 and carbonated drink type cylinder 11 shelve and be fixed on by footing go up ash settling basin above.
The function of each part of desulfurizing dust-collector and technical process
Desulfurizing dust-collector is mainly used in the coal-burning boiler desulfation dust-extraction device.The flue gas that is given off in the boiler will flow into desulfurization and dedusting pipe 12 from smoke inlet pipeline 2.Since flue gas be a kind of temperature about 200 ℃, contain SO
2Hot gas with flying dust, after entering desulfurization and dedusting pipe 12, flue gas just with its in the atomizing shape high pressure of the spiral nozzle that the is provided with 18 ejections spray shape that contains alkali lye water and spray spout 20 spray respectively desulfurization and dedusting pipe 12 in formation steam fog and the alkalies curtain as water curtain that forms contacts on inwall.Atomizing shape high pressure contains alkali lye water and mainly absorbs SO
2And react so that SO with it
2Be generated sodium sulphite and sodium sulphate, and flying dust can be glued and down diffluence in the flue gas by formation water curtain spray liquid on atomized liquid water in desulfurization and dedusting Guan Shangguan 122 and the inwall.Simultaneously; part alkali lye water brings the heat vaporization to form moist steam flue gas; increased fully contacting of alkali lye and moist steam greatly; promote sulfur dioxide further to be absorbed, react by alkali lye; and impel fly ash granule or dust to be soaked the liquid that becomes to contain ash, and flow to the overflowing board device 14 that is positioned at desulfurization and dedusting pipe 12 middle and lower parts.
At this moment, a small amount of sulfur dioxide flue dust, the flying dust that is not removed that remains in the flue gas and contain grey akaline liquid when flowing through overflowing board device 14 under the air-flow of in-out apparatus promotes, makes the blade rotation.Simultaneously, because the turning effort of blade 141, flue dust and flying dust form swirling flow with containing this liquid, and they more fully contacts, remove except continuation absorption sulfur dioxide and with flying dust.At this moment, flue gas desulfurization and dedusting reaches higher removing state basically, leaves desulfurization and dedusting pipe 12.
The swirling flow cigarette water (comprising flue gas and buck) that flows out from desulfurization and dedusting pipe 12 enters water bath tube 10, and carries out water-bath in the certain altitude water to rush to keep at a high speed under the swirling flow effect in water bath tube 10, simultaneously, evokes the eddy current of water in the water bath tube, with SO in the flue gas
2Again by alkali lye absorb, reaction, and the flying dust grit soaks, in the molten heavy water.After the flue gas water-bath, it removes the grit of right＞1.5 μ efficient and can reach 95～99%.At this moment, flue gas is cleaned, and flying dust then is captured and is water-soluble and sink to ash-pit 103.Purifying flue gas leaves the water surface and is condensed into large water drop with the swirling flow form.Under centrifugal action, with large water drop get rid of to water bath tube 10 internal faces and in gravity effect lower edge wall flow water, make that moisture significantly reduces in the flue gas.
The flue gas that flows out from water bath tube 10 is still with the swirling flow form and enters carbonated drink type cylinder 11.Carrying a large amount of micro-droplets in the flue gas secretly.Flue gas collides on the inwall of carbonated drink type cylinder 11 and makes droplet be condensed into large water drop, be again to be thrown on the internal face under the centrifugal action that produces in swirling flow simultaneously, in conjunction with forming large water drop, the latter will be at gravity effect lower edge internal face to dirty, and collection is guided to discharge outlet 115 and discharged as condensed water.The flue gas that purifies enters shelves pipe 111 and discharges from outlet conduit 3 by it, and will enter atmosphere through chimney under the air-introduced machine effect.
Behind above-mentioned desulfurization and dedusting, the dust-containing water of heavy ash-pit 103 depositions of water bath tube constantly enters ground ground ash settling basin 5 by blowoff valve 104.After a couple of days, long-pending ground ash settling basin 5 of having expired plaster is cleared up, be discharged in another ash settling basin on the ground of next door with wherein plaster or by the blowdown flexible pipe, or incense is used by manually diging up dust stratification.Because this dust stratification is mummification when stacking usually, so do not pollute the environment, can guarantee good environment-friendly quality and reduce working strength of workers.
Non-return gas spilling water device 13 flows into water bath tube 10 after spiral nozzle 18 and 20 sprayings and spray effect water plays regulating action, so that keep the water surface elevation of water in the water bath tube 10 and prevent that extraneous air from entering water bath tube 10.For example, when the water yield in water bath tube 10 increases, overflow valve 133 of non-return gas spilling water device 13 rises, water is discharged from overfall 134, on the contrary, keep water surface elevation by outside moisturizing when the water yield reduces, even so, but non-return gas spilling water device 13 makes water bath tube 10 and extraneous air isolated during operation all the time.
From ground ash settling basin 5 flow out, non-return gas spilling water device 13 overflows contains alkaline water, by bright well, flows to circulating water pool 6.After clarifying treatment, this water can be made the shower nozzle that desulfurizing dust-collector was regulated and continued to offer by water circulating pump to alkali content in alkali lye pond 7.Can recycle again and again like this.In use, frequent moisturizing to keep the circulatory pool water level.In use to often add (NaOH).Keep recirculated water PH 〉=8～9, guarantee that desulfurized effect is up to standard.
Claims (10)
1. a modified desulfation dust-extraction device comprises nozzle, smoke inlet and outlet conduit, alkali lye feeding mechanism, ash settling basin, and circulating water pool, alkali lye pond, desulfurizing dust-collector is characterized in that desulfurizing dust-collector comprises:
One water bath tube, a carbonated drink type cylinder, water bath tube and carbonated drink type cylinder are made an integral body to constitute an oval-shaped associating cylindrical shell, and they are that top perforate that be separated out by a dividing plate with top perforate and by dividing plate communicates with each other, in addition, described water bath tube is provided with an apopore on the opening that enters that is provided with a flue gas on its top board, its underpart outer wall, then be contained with a certain amount of water in its tube; The top board of described water type cylinder is provided with the discharge outlet that an opening and that purifies the flue gas outflow is positioned at the bottom;
One desulfurization and dedusting pipe, it by a minor diameter go up pipe, a large diameter pipe down and a tapering part is formed and interconnect by the latter and to be integral, described desulfurization and dedusting pipe is installed on the water bath tube by the opening at water bath tube top, and makes pipe be positioned at the upper and lower pipe of water bath tube top board to stretch into water bath tube and the water surface internal water containing with it and keep certain distance;
One non-return gas spilling water device, it comprises that a water inlet pipe, has the three-way pipe and overflow valve of necking part and overfall, overfall also is assemblied on the apopore on the outer wall of water bath tube bottom so that return-air spilling water device is communicated with water bath tube by water inlet pipe, the oral area of overfall is under the base plane of following pipe certain distance usually and sentences the water surface elevation that keeps water in the water bath tube, and overflow valve is placed in the necking down pipe;
One overflowing board device, it is a unpowered type swirling flow blower fan, is installed in the tapering part of desulfurization and dedusting pipe;
Be connected so that the flue gas that enters the desulfurization and dedusting pipe is sprayed and spray in the last pipe of described nozzle installation desulfurization and dedusting pipe and with the supply pipe of alkali lye feeding mechanism.
2. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1, it is characterized in that, described water bath tube and carbonated drink type cylinder respectively are a discrete columnar cylindrical shell, they are provided with a perforate separately on external wall of upper portion, and can be connected in each perforate and be linked together and be connected with each other logical symmetrically by a tube connector.
3. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, the bottom of described water bath tube also is provided with an outstanding dust stratification groove downwards.
4. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, described overflowing board device is made by stainless steel material.
5. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, described ash settling basin is one to be placed in ground ground ash settling basin.
6. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, described overflowing board device comprises 12～18 blades, and the helical angle of each blade is 18～22 degree.
7. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, described carbonated drink type cylinder is being provided with a ring flange near on the following pipe of tapering part, and is fixed on by this ring flange on the top board of water bath tube.
8. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 1 and 2 is characterized in that, described nozzle is two, and one is the atomizing nozzle, and one is the fountain nozzle, they on the desulfurization and dedusting pipe in the pipe between the upper and lower every layout.
9. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 4, it is characterized in that described desulfurization and dedusting pipe, water bath tube, non-return gas spilling water device and carbonated drink type cylinder are protection lining steel and all be covered with one deck rubber on their inwall.
10. the desulfurizing dust-collector of modified desulfation dust-extraction device according to claim 5, it is characterized in that, the bottom of described water bath tube and carbonated drink type cylinder is provided with common footing, the upper end of described ground ash settling basin is provided with supporting base, described water bath tube and carbonated drink type cylinder by footing be installed in ash settling basin above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228644 CN2600721Y (en) | 2003-01-30 | 2003-01-30 | Improved desulfurization dust removing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228644 CN2600721Y (en) | 2003-01-30 | 2003-01-30 | Improved desulfurization dust removing device |
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| CN2600721Y true CN2600721Y (en) | 2004-01-21 |
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| CN 03228644 Expired - Fee Related CN2600721Y (en) | 2003-01-30 | 2003-01-30 | Improved desulfurization dust removing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239964A (en) * | 2013-05-20 | 2013-08-14 | 广州市天凿精机机械有限公司 | Dust removal device |
| CN104028072A (en) * | 2014-06-23 | 2014-09-10 | 中能佳程环保能源科技（北京）有限公司 | Method for performing flue gas purification by turning-back cyclone type multistage flue gas purification equipment |
-
2003
- 2003-01-30 CN CN 03228644 patent/CN2600721Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239964A (en) * | 2013-05-20 | 2013-08-14 | 广州市天凿精机机械有限公司 | Dust removal device |
| CN103239964B (en) * | 2013-05-20 | 2015-09-02 | 广州市天凿精机机械有限公司 | Dust arrester |
| CN104028072A (en) * | 2014-06-23 | 2014-09-10 | 中能佳程环保能源科技（北京）有限公司 | Method for performing flue gas purification by turning-back cyclone type multistage flue gas purification equipment |
| CN104028072B (en) * | 2014-06-23 | 2016-02-10 | 中能佳程环保能源科技（北京）有限公司 | Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning |
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