CN101099920A - Integration dust-removing and desulfurizing device - Google Patents
Integration dust-removing and desulfurizing device Download PDFInfo
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- CN101099920A CN101099920A CNA2006100147158A CN200610014715A CN101099920A CN 101099920 A CN101099920 A CN 101099920A CN A2006100147158 A CNA2006100147158 A CN A2006100147158A CN 200610014715 A CN200610014715 A CN 200610014715A CN 101099920 A CN101099920 A CN 101099920A
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Abstract
The present invention relates to integrated dedusting and desulfurizing apparatus and process. The integrated dedusting and desulfurizing apparatus one outer cylinder and one inner cylinder to form one sandwich with tangent air inlet and one air outlet, one sandwiched sleeve connected coaxially to the lower part of the inner cylinder and communicated to the sandwich between the outer cylinder and the inner cylinder, one water tank communicated to the sandwiched sleeve, one dewatering unit coaxially fixed inside the inner cylinder and with one axial water pipe, and one horizontal sieve plate in the middle part inside the sandwiched sleeve. The present invention has well combined cyclonic dedusting and spray dedusting and desulfurizing, possesses high dedusting and desulfurizing efficiency, and is suitable for purifying fume of small boiler.
Description
Technical field
The invention belongs to the dust-removing desulfurating apparatus in environmental protection field, particularly a kind of integration dust-removing and desulfurizing device.
Background technology
China is coal-fired big country, contain a large amount of dusts and sulfur dioxide in the flue gas of discharged from coal-fired boiler, if directly be disposed in the atmosphere and can cause great pollution to environment, the dust that contains in the flue gas is suspended in the atmosphere, all can produce extremely bad influence to human respiratory, atmospheric visibility and urban look etc.; And the sulfur dioxide that contains in the flue gas contacts formation acid rain, severe contamination water source and ecological environment with airborne water vapour.Along with expanding economy; realizing the industrialized focus of protecting environment to become government and people's concern simultaneously; have multiple dust-collecting sulfur-removing method and equipment both at home and abroad; existing dust-removal and desulfurizing mode comprises dry type, wet type and half dry type; dedusting and desulfurization are independently carried out; its course of work also is to finish in two or more independently systems, and this dusting and desulfuring system is comparatively complicated, floor space is big, energy consumption is bigger.Though the existing report of dedusting and desulphurization integrated technology, but the dust-removal and desulfurizing mode is comparatively single, as only adopting dry type or dust-remover method, also exist shortcoming separately, cause the effect of dust-removal and desulfurizing undesirable, and existing dust-removal and desulfurizing equipment overall structure is comparatively complicated, and system is difficult to safeguard.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of compact conformation, volume is little, dry dust removal combines with dust-remover, dust-removal and desulfurizing efficient is high integration dust-removing and desulfurizing device are provided.
The present invention solves its technical problem and takes following technical scheme to realize:
This integration dust-removing and desulfurizing device, comprise loam cake, outer cylinder body, inner barrel, air inlet, the gas outlet, ash-valve, the pond, inner barrel is coaxial to be installed in the outer cylinder body, ash-valve is communicated with between inner barrel and the outer cylinder body formed chuck and is installed in the outer cylinder body bottom, the pond is packed in the bottom of outer cylinder body, it is characterized in that: outer cylinder body top is provided with the tangential admission mouth of formed chuck between a connection inner barrel and the outer cylinder body, inner barrel is communicated with the gas outlet that is arranged on the outer cylinder body, the coaxial interlayer sleeve that is fixed with in inner barrel bottom on the pond, the interlayer of this interlayer sleeve is communicated with between inner barrel and the outer cylinder body formed chuck and is communicated with the pond, the coaxial dehydrator that installs in the inner barrel on the interlayer sleeve, be axially installed with a water pipe in dehydrator, the middle part level is fixed with a porous sieve plate in the interlayer sleeve.
And described dehydrator top is coaxial to be fixed with one by guiding awl that inside and outside helical blade constituted.
And described ash-valve is that air-tightness ash-valve and its number are 2-4 and the circumferential uniform outer cylinder body bottom that is installed in.
And the porous sieve plate in the described interlayer sleeve axially is fixed with a centre bore pipe, and this centre bore pipe upper end is positioned under the liquid level of pond a little more than plane, its lower end on the porous sieve plate.
And, described water pipe end is equipped with a nozzle, and this nozzle is formed by being threaded with nozzle carrier by nozzle core, and this nozzle core centre bore top is shaped on cone, its side is shaped on a plurality of tangential passages that communicate with centre bore, and the bottom is shaped on the taper diffusion hole that communicates with centre bore.
And described and tank floor interlayer sleeve relative position is a slope shape.
Advantage of the present invention and good effect are:
1. the present invention has set up the wet type desulfurizing system cleverly in cyclone dust collector, compact conformation, reasonable in design, floor space is little, in the dust-removal and desulfurizing work that has realized miniature boiler (below 10 tons) on tens square metres the ground, the device overall cost is lower, and desulfurization and dedusting is satisfactory for result, efficiency of dust collection is higher than 98%, and desulfuration efficiency reaches more than 85%.
2. the present invention integrates whirlwind centrifugal dust-removing, multistage dust-remover; the flue gas that contains a large amount of dusts is sloughed the bulky grain dust through cyclone dust removal earlier; significantly reduced the solid ash content in the lime pond; alleviated the workload of dust-remover system; reduce the workload that operating personnel excavate lime significantly, reduced operating cost.
3. porous sieve plate evenly disperses gas, and its liquid film with the sieve plate surface is fully contacted, and evenly flows upward, and dust fully contacts with the atomized drop that the top water hose nozzle is produced.And the middle centre bore pipe of setting up of porous sieve plate, kept porous sieve plate surface liquid film to have certain thickness and being kept perfectly property, when liquid level surpassed the upper end of centre bore pipe, solid content flowed into the lime pond downwards by this centre bore pipe under the guiding of liquid flow.
4. at the circulating water pipe end nozzle is set, inside is provided with cone, and the side is provided with a plurality of tangential passages that are communicated with centre bore, has strengthened atomizing effect, increases aerosol contact mass transfer area, improve desulfuration efficiency, and this nozzle has the self-cleaning choke preventing function.
5. be provided with the guiding awl in the dehydrator in the inner barrel, the design of guiding awl has inside and outside two groups of helical blades, near the inner barrel central axis gas is under the effect of internal helical blades, produce close powerful centrifugal force field with the external spiral blade, the drop that mixes near the gas inner barrel central axis is separated completely with solid impurity, overcome near the disadvantage of the inferior separating effect in traditional single group integral blade center.
6. this device is designed to slope shape in the undersurface basin bottom of gas shock, and the solid content on the water mesoslope slides to sewage draining exit under the effect of gas shock and gravity, has alleviated the workload of changing the water slagging-off greatly.
7. compact conformation of the present invention, the small-sized integrated dust-removing desulfurating apparatus that volume is little, overall cost is lower, dry dust removal combines, has five step dust-removal and desulfurizing processes with dust-remover, dust-removal and desulfurizing efficient is high are particularly useful for the dust-removal and desulfurizing work of medium small boiler.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention;
Fig. 2 is an air inlet schematic top plan view of the present invention;
Fig. 3 is an evaporator structure schematic diagram of the present invention;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is a nozzle arrangements generalized section of the present invention;
Fig. 6 is that the A-A of Fig. 5 is to cross-sectional view;
Fig. 7 is the cross-sectional view of the nozzle core side of nozzle of the present invention when being 3 passages;
Fig. 8 is the cross-sectional view of the nozzle core side of nozzle of the present invention when being 4 passages;
Fig. 9 is a porous sieve plate structural representation of the present invention;
Figure 10 is the vertical view of Fig. 9;
Figure 11 is the partial enlarged drawing of Figure 10.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described:
As shown in Figure 1, this integration dust-removing and desulfurizing device, comprise loam cake 1, outer cylinder body 2, inner barrel 4, air inlet 16, gas outlet 3, ash-valve 12, pond 13, inner barrel is coaxial to be installed in the outer cylinder body, ash-valve is communicated with between inner barrel and the outer cylinder body formed chuck and is installed in the outer cylinder body bottom, the pond is packed in the bottom of outer cylinder body, and air inlet and gas outlet are packed in outer cylinder body top.
Innovation part of the present invention is: outer cylinder body top is provided with the tangential admission mouth (as shown in Figure 2) of formed chuck between a connection inner barrel and the outer cylinder body, and inner barrel is communicated with the gas outlet that is arranged on the outer cylinder body.
Ash-valve is connected with outer cylinder body and the formed annular chuck of inner barrel, ash-valve is the air-tightness automatic dust discharge valve, communicate with the device extraneous air during valve open, the number of ash-valve is 2-4, the circumferential uniform outer cylinder body bottom that is installed in, and can be according to actual conditions, according to the treating capacity of device, increase or reduce the number of ash-valve, be illustrated as four in the present embodiment.
The coaxial interlayer sleeve 9 that is fixed with in inner barrel bottom on the pond, the interlayer of this interlayer sleeve is communicated with formed chuck between inner barrel and the outer cylinder body, this interlayer lower end is communicated with the pond, and interlayer sleeve upper end is higher than ash-valve and forms the grey storehouse 14 of annular storage with outer cylinder body.This interlayer sleeve is made by materials such as heat-resisting, resistant material such as potteries, and is fixed on the base station (not shown), and the support by base station makes device integral body be positioned at the top in pond.
The coaxial dehydrator 6 that installs in the inner barrel in the interlayer sleeve, as shown in Figure 3, Figure 4, this dehydrator top is coaxial to be fixed with a guiding awl 5 that is made of internal helical blades 18, external spiral blade 17.The height of dehydrator is lower than the height of gas outlet, and this dehydrator is by the radial struts 15 coaxial inside that are installed in inner barrel on its outer wall top, and forms an annular space zone with inner barrel, adopts four supports in the present embodiment.One passage for the circulating water pipe insertion is arranged in the middle of the dehydrator, and the number of internal helical blades is ten in the present embodiment, and the number of external spiral blade also is ten.Near the inner barrel central axis gas is under the effect of internal helical blades, produce close powerful centrifugal force field with the external spiral blade, the drop that mixes near the gas inner barrel central axis is separated completely with solid impurity, overcome near the disadvantage of the inferior separating effect in traditional single group integral blade center.
Be axially installed with a water pipe 7 in dehydrator, this water pipe is the circulating water pipe that is supplied water by the pond, and water pipe vertically is installed in the inner barrel and passes through the passage at dehydrator center.The water pipe end is equipped with a nozzle 8, as Fig. 5, shown in Figure 6, this nozzle is formed by being threaded with nozzle carrier 20 by nozzle core 25, these nozzle core centre bore 24 tops are shaped on cone 19, its side is shaped on a plurality of tangential passages 22 that communicate with centre bore, and the bottom is shaped on the taper diffusion hole 26 that communicates with centre bore.And its tangential passage that communicates with centre bore also can be made three, four or more a plurality of (Fig. 7, shown in Figure 8).The inner end of nozzle carrier is shaped on screw thread and the positioning table 23 that cooperates with nozzle core, and in this nozzle carrier and made channel position corresponding section, nozzle core side is a taper expansion section 21.The nozzle carrier outside is shaped on screw thread, is installed in the circulating water pipe end by the mode that is threaded.This has multichannel nozzle, has better atomizing effect, can increase aerosol contact mass transfer area, improve desulfuration efficiency, and this nozzle has the self-cleaning choke preventing function.
The middle part level is fixed with a porous sieve plate 11 in the interlayer sleeve, this porous sieve plate axially is fixed with a centre bore pipe 10, as Fig. 9, Figure 10, shown in Figure 11, the upper end of centre bore pipe is a little more than the upper surface of porous sieve plate on the porous sieve plate, the lower end is positioned under the liquid level of pond, and the porous sieve plate surface is provided with radially reinforcement (not label).Porous sieve plate is made by corrosion resistant material, and it act as gas is evenly disperseed, and its liquid film with the sieve plate surface is fully contacted, and evenly flows upward, fully contacts with the atomized drop that the top spray equipment is produced.The centre bore pipe of setting up in the middle of the porous sieve plate, keep porous sieve plate surface liquid film to have certain thickness and kept the integrality of liquid film, when liquid level surpassed the upper end of centre bore pipe, solid content flowed into the lime pond downwards by this centre bore pipe under the guiding of liquid flow.
The pond is positioned at the below of whole device, and tank floor and sleeve relative position are slope shape, have a sewage draining exit at the bottom of the pond.Solid content on the water mesoslope slides to sewage draining exit under the effect of gas shock and gravity, alleviated the workload of changing the water slagging-off greatly.Be the liquid that can absorb sulfur dioxide such as lime aqueous solution etc. in pond and the device in the circulating water pipe, the space of liquid level and interlayer sleeve bottom is less in the pond, so that gas can evoke a certain amount of wave, and the mixing of assurance gas-liquid.
Operation principle of the present invention is:
Dusty gas is tangentially entered in outer cylinder body and the formed annular chuck of inner barrel by air inlet under the effect of blower fan, form centrifugal force field, bulky grain falls with the gas rotation along the outer cylinder body inwall, dust accretions is in the grey storehouse of circular storage, when dust accretions relies on gravity to press off the valve plate of airtight automatic dust discharge valve during to suitable height, oarse-grained removing realized in dust discharger outside; The gas rotation descends, the downward precession of annular slot of the sleeve that is connected along the inner barrel bottom, annular slot is wide at the top and narrow at the bottom, gas flow rate increases, the water surface gap in sleeve and lime pond is very little, and gas forms liquid in the pond and impacts, and portion gas pours the water surface and evokes wave, gas-liquid mixed realizes desulfurization for the first time and removes thin dust; Gas turns upwards flows for 180 °, the porous sieve plate that in sleeve, is provided with, contact with the liquid film on the sieve plate, desulfurization for the second time and remove thin dust, the liquid film on the porous sieve plate is that liquid that water pump extracts from the pond accumulates in the sieve plate surface by nozzle atomization sprinkling downwards and forms; Gas continues upwards to flow, and fully contacts with drop through nozzle atomization, realizes desulfurization for the third time and removes thin dust; Gas moves upward through dehydrator, form centrifugal force field, fine drop that contains in the gas and granule foreign are got rid of under action of centrifugal force on the inner barrel inwall to dehydrator, crack along inner barrel and dehydrator outer wall drops to the sieve plate surface, owing in the gas of spray for dust suppression desulfurization, be entrained with the partial impurities that forms in the larger particles that forms by superfine microparticle coalescence and the sweetening process and tiny drop, if will attach to the blade of air-introduced machine without this step drop and granule foreign, cause vane dust deposition even corrosion, reduced the clean level that purifies air; Pure air under the effect of air-introduced machine outside the gas outlet discharger that is communicated with inner barrel.Liquid in the present embodiment is lime aqueous solution.
The present invention is combined as a whole the technology of cyclone dust removal, spray for dust suppression desulfurization cleverly by this device, have five step dedustings, sweetening process, the device compact overall structure, floor space is little, in the dust-removal and desulfurizing work that has realized miniature boiler (below 10 tons) on tens square metres the ground, apparatus cost is lower, and desulfurization and dedusting is satisfactory for result, efficiency of dust collection is higher than 98%, and desulfuration efficiency reaches more than 85%.
Claims (6)
1, a kind of integration dust-removing and desulfurizing device, comprise loam cake, outer cylinder body, inner barrel, air inlet, the gas outlet, ash-valve, the pond, inner barrel is coaxial to be installed in the outer cylinder body, ash-valve is communicated with between inner barrel and the outer cylinder body formed chuck and is installed in the outer cylinder body bottom, the pond is packed in the bottom of outer cylinder body, it is characterized in that: outer cylinder body top is provided with the tangential admission mouth of formed chuck between a connection inner barrel and the outer cylinder body, inner barrel is communicated with the gas outlet that is arranged on the outer cylinder body, the coaxial interlayer sleeve that is fixed with in inner barrel bottom on the pond, the interlayer of this interlayer sleeve is communicated with between inner barrel and the outer cylinder body formed chuck and is communicated with the pond, the coaxial dehydrator that installs in the inner barrel on the interlayer sleeve, be axially installed with a water pipe in dehydrator, the middle part level is fixed with a porous sieve plate in the interlayer sleeve.
2, integration dust-removing and desulfurizing device according to claim 1 is characterized in that: described dehydrator top is coaxial to be fixed with one by guiding awl that inside and outside helical blade constituted.
3, integration dust-removing and desulfurizing device according to claim 1 is characterized in that: described ash-valve is that air-tightness ash-valve and its number are 2-4 and the circumferential uniform outer cylinder body bottom that is installed in.
4, integration dust-removing and desulfurizing device according to claim 1 is characterized in that: the porous sieve plate in the described interlayer sleeve axially is fixed with a centre bore pipe, and this centre bore pipe upper end is positioned under the liquid level of pond a little more than plane, its lower end on the porous sieve plate.
5, integration dust-removing and desulfurizing device according to claim 1, it is characterized in that: described water pipe end is equipped with a nozzle, this nozzle is formed by being threaded with nozzle carrier by nozzle core, this nozzle core centre bore top is shaped on cone, its side is shaped on a plurality of tangential passages that communicate with centre bore, and the bottom is shaped on the taper diffusion hole that communicates with centre bore.
6, integration dust-removing and desulfurizing device according to claim 1 is characterized in that: described and tank floor interlayer sleeve relative position is a slope shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100147158A CN101099920A (en) | 2006-07-06 | 2006-07-06 | Integration dust-removing and desulfurizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100147158A CN101099920A (en) | 2006-07-06 | 2006-07-06 | Integration dust-removing and desulfurizing device |
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| CN101099920A true CN101099920A (en) | 2008-01-09 |
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| CNA2006100147158A Pending CN101099920A (en) | 2006-07-06 | 2006-07-06 | Integration dust-removing and desulfurizing device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496991B (en) * | 2009-01-24 | 2011-05-11 | 哈尔滨工业大学 | Upper straight-down rotating dry-type circulating fluidized bed desulfurization reactor |
| CN102519685A (en) * | 2011-12-14 | 2012-06-27 | 福建龙净环保股份有限公司 | Device and method for testing dust collection polar liquid film of wet type electrostatic dust collector |
| CN103055635A (en) * | 2012-12-28 | 2013-04-24 | 永城煤电控股集团有限公司 | Dust collector for cement tank vents |
| CN106000059A (en) * | 2016-08-11 | 2016-10-12 | 连云港宝翔铸造有限公司 | Multipoint centralized dedusting desulphurization denitration apparatus |
| CN106731342A (en) * | 2017-03-16 | 2017-05-31 | 新疆工程学院 | Spiral water film dust removal device based on turbulent flow coalescence |
| CN107737505A (en) * | 2017-11-13 | 2018-02-27 | 武汉轻工大学 | Grain bed seepage flow liquid film auto purification type flue gas processing device |
| CN109107347A (en) * | 2018-08-16 | 2019-01-01 | 湖南长清蓝节能环保科技有限公司 | A kind of system for desulfuration and denitration and its technique |
| CN109529513A (en) * | 2018-12-24 | 2019-03-29 | 华东理工大学 | A kind of gas-solid separating device for thorium base molten salt reactor |
| CN112324322A (en) * | 2020-09-17 | 2021-02-05 | 广州市市政工程试验检测有限公司 | Rock-soil drilling device, follow-drilling pipe pile and rock-soil drilling method |
-
2006
- 2006-07-06 CN CNA2006100147158A patent/CN101099920A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496991B (en) * | 2009-01-24 | 2011-05-11 | 哈尔滨工业大学 | Upper straight-down rotating dry-type circulating fluidized bed desulfurization reactor |
| CN102519685A (en) * | 2011-12-14 | 2012-06-27 | 福建龙净环保股份有限公司 | Device and method for testing dust collection polar liquid film of wet type electrostatic dust collector |
| CN103055635A (en) * | 2012-12-28 | 2013-04-24 | 永城煤电控股集团有限公司 | Dust collector for cement tank vents |
| CN103055635B (en) * | 2012-12-28 | 2015-06-03 | 永城煤电控股集团有限公司 | Dust collector for cement tank vents |
| CN106000059A (en) * | 2016-08-11 | 2016-10-12 | 连云港宝翔铸造有限公司 | Multipoint centralized dedusting desulphurization denitration apparatus |
| CN106000059B (en) * | 2016-08-11 | 2018-07-31 | 连云港百顺釉料有限公司 | Multiple spot concentrated dust-removing desulfuring and denitrifying apparatus |
| CN106731342A (en) * | 2017-03-16 | 2017-05-31 | 新疆工程学院 | Spiral water film dust removal device based on turbulent flow coalescence |
| CN107737505A (en) * | 2017-11-13 | 2018-02-27 | 武汉轻工大学 | Grain bed seepage flow liquid film auto purification type flue gas processing device |
| CN109107347A (en) * | 2018-08-16 | 2019-01-01 | 湖南长清蓝节能环保科技有限公司 | A kind of system for desulfuration and denitration and its technique |
| CN109529513A (en) * | 2018-12-24 | 2019-03-29 | 华东理工大学 | A kind of gas-solid separating device for thorium base molten salt reactor |
| CN109529513B (en) * | 2018-12-24 | 2021-09-28 | 华东理工大学 | Gas-solid separation device for thorium-based molten salt reactor |
| CN112324322A (en) * | 2020-09-17 | 2021-02-05 | 广州市市政工程试验检测有限公司 | Rock-soil drilling device, follow-drilling pipe pile and rock-soil drilling method |
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