CN204411992U - Passive plate rotating vane type dedusting demister - Google Patents

Passive plate rotating vane type dedusting demister Download PDF

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Publication number
CN204411992U
CN204411992U CN201520025290.5U CN201520025290U CN204411992U CN 204411992 U CN204411992 U CN 204411992U CN 201520025290 U CN201520025290 U CN 201520025290U CN 204411992 U CN204411992 U CN 204411992U
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China
Prior art keywords
demister
rotating vane
vane type
plate rotating
air guide
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CN201520025290.5U
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Chinese (zh)
Inventor
李媛媛
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田鹏程
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Priority to CN201520025290.5U priority Critical patent/CN204411992U/en
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Publication of CN204411992U publication Critical patent/CN204411992U/en

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Abstract

The utility model relates to passive plate rotating vane type dedusting demister, comprise the housing that two ends are provided with fume inlet passage and smoke-outlet flue, atomizer, venturi air guide channel and demister is provided with successively in described housing, wherein, atomizer and fume inlet passage adjacent, demister is connected with smoke-outlet flue; Dedusting demist process is carried out by passive plate rotating vane type dedusting demister.The utility model apparatus structure arranges succinctly, running resistance is low, security reliability is high, operation is quick and expense is low, effectively can remove the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol, especially compared with can reaching the Wet type electric dust-removing device of equal clean-up effect, without electrical equipment, energy consumption reduces, and financial cost significantly reduces; Further, easy for installation, be applicable to the neat stress dedusting demist field application of the relevant industries such as fire coal, fuel oil, combustion gas thermal power plant, metallurgy, chemical industry, solid waste (rubbish) process.

Description

Passive plate rotating vane type dedusting demister
Technical field
The utility model relates to dedusting demist technical field in fume treatment, the passive plate rotating vane type dedusting demister after particularly relating to for existing flue gas wet-treating.
Background technology
At present, flue gas ash removal technology is a lot, wherein, comparative maturity, representative technology have: the dedusting technologies such as electrostatic precipitator, sack cleaner, electrostatic pocket type combined dust remover, wet electrical dust precipitator, are mainly demister and wet electrical dust precipitator for dedusting demister after smoke-gas wet desulfurization.In PROCESS FOR TREATMENT, the fine droplet produced in wet sprinkling process removed by demister, demister type is mainly flat and ridge type, but both Flat defroster and ridge type demister are all difficult to meet the requirement of environmental protection to the removal effect that particle diameter is less than the dust that in the drop of 5um, flue gas, particle diameter is less than 5um and the finely ground particles such as aerocolloidal sulfate radical, inferior sulfate radical, nitrate anion, nitrite anions forming PM2.5.In addition, in PROCESS FOR TREATMENT, after wet desulphurization device, install Wet type electric dust-removing device additional carry out dedusting and demist, although effectively finely ground particles can be removed, but Wet type electric dust-removing device also exists process equipment to take up room greatly, initial cost is high, and operation energy consumption is high, and constructed item transforms the problems such as difficulty is large
Therefore, for meeting the requirement of people to the increasingly stringent of environmental protection, needing badly and the technology of this area is improved.
Utility model content
The purpose of this utility model is, for dedusting demist technology Problems existing in existing fume treatment, passive plate rotating vane type dedusting demister is provided, existing wet type flue gas desulphurization treatment facility basis optimizes and combines, without the need to installing electrical equipment additional, run reliably easy, the finely ground particles such as the fine drop in effective removal flue gas, fine solid particle particle, aerosol, that improves flue gas removes purification efficiency, strengthens environment protecting, reduce energy consumption, reduce costs.
The technical scheme that the utility model is dealt with problems is: passive plate rotating vane type dedusting demister, comprise the housing that two ends are provided with fume inlet passage and smoke-outlet flue, atomizer, venturi air guide channel and demister is provided with successively in described housing, wherein, described atomizer and described fume inlet passage adjacent, described demister is connected with described smoke-outlet flue.
Further, in the utility model passive plate rotating vane type dedusting demister, described demister is vertical board-like demister; Described atomizer is to spray the device that mist droplet particle size scope is the atomized water of 20um ~ 60um.
Further, in the utility model passive plate rotating vane type dedusting demister, described venturi air guide channel comprise be connected successively contraction section, throat and diffuser, wherein, described contraction section is adjacent with described atomizer, and described diffuser is adjacent with described demister.
Preferably, in the utility model passive plate rotating vane type dedusting demister, described venturi air guide channel forms by organizing Venturi tube more.
Preferably, in the utility model passive plate rotating vane type dedusting demister, described venturi air guide channel has many groups, often organizes described venturi air guide channel and is made up of multiple dividing plate and aeroscopic plate.
Preferably, in the utility model passive plate rotating vane type dedusting demister, in described multiple aeroscopic plate, the distance between adjacent aeroscopic plate is 1:8 to 40:1 with the ratio of the height of aeroscopic plate.
Preferably, in the utility model passive plate rotating vane type dedusting demister, the spacing of adjacent described aeroscopic plate is 0.2 ~ 1 meter; The height of described aeroscopic plate is 0.5 ~ 8 meter; Distance between described atomizer and dividing plate is 5cm ~ 50cm; Distance between adjacent described dividing plate is 5cm ~ 50cm.
Preferably, in the utility model passive plate rotating vane type dedusting demister, the conduit wall of described venturi air guide channel is made up of the one in acid-resistant stainless steel, the carbon steel adding painting glass flake anticorrosive coat, fiberglass, PP and PVC.
The utility model additionally provides a kind of passive plate rotating vane type treatment process for removing sulfur, dust and fog: the flue gas after the process of existing wet type flue gas desulphurization treatment facility enters passive plate rotating vane type dedusting demister from fume inlet passage, in passive plate rotating vane type dedusting demister, flue gas successively through contacting with the atomized water that atomizer sprays, the effect of venturi air guide channel, after demister process, gained neat stress is discharged through smoke-outlet flue.
Further, in above-mentioned passive plate rotating vane type treatment process for removing sulfur, dust and fog, in described venturi air guide channel, the flue gas after atomization processes through contraction section, throat and diffuser successively, is then captured in demister; Preferably, in the atomized water of described atomizer ejection, mist droplet particle size scope is 20um ~ 60um, to ensure the trapping of fine particle.
Further, in above-mentioned passive plate rotating vane type treatment process for removing sulfur, dust and fog, Gas phase Smoke is vertical or process parallel through passive plate rotating vane type dedusting demister for the clean flue of former wet type flue gas desulphurization treatment facility.
During application the utility model passive plate rotating vane type dedusting demister, only its clean flue with existing wet type flue gas desulphurization treatment facility need be connected, deep purifying can be carried out to finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosols to remove, without the need to power consumption as Wet type electric dust-removing device, passive type carries out the process of flue gas deep purifying, and adopt atomizer, venturi air guide channel and demister to optimize and combine to carry out wet dust removal demist to flue gas afterwards, thus avoid the impact on equipment and environment in fume treatment and discharge process; And, arrange because combination can be carried out with the clean flue of existing treatment system, so, significantly save space; In addition, existing wet type flue gas desulphurization treatment facility for installing the utility model passive plate rotating vane type dedusting demister additional is not particularly limited, and the wet flue gas treating apparatus etc. combined as lime stone calcium method desulphurization system, ammonia method desulfurizing system, double alkali method desulfurizing system and wet denitration system, wet method demercuration system and other desulfurization denitration demercurations all can be applied.The passive plate rotating vane type treatment process for removing sulfur, dust and fog that the wet flue gas treating apparatus that application the utility model desulfurization denitration demercuration combines carries out, by the abundant analysis and research to flue gas composition and operation, venturi air guide channel is entered after making flue gas pass through atomization process, utilize the pressure of flue gas self for power, collide through venturi air guide channel wall, change the direction of motion and the speed of flue gas, make flue gas through shrinking and diffusion, and then condensation, then trapped by demister, achieve the fine drop in flue gas, fine solid particle particle, the efficient advanced treating of the finely ground particles such as aerosol, efficiency of dust collection can reach 80%.
Compared with prior art, the beneficial effects of the utility model are: apparatus structure arranges succinctly, running resistance is low, and security reliability is high, the treatment process of optimization, operation is quick and expense is low, effectively can remove the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol, especially compared with the Wet type electric dust-removing device that can reach equal clean-up effect and technique, without electrical equipment, energy consumption reduces, and financial cost significantly reduces; Further, easy for installation, be applicable to the neat stress dedusting demist field application of the relevant industries such as fire coal, fuel oil, combustion gas thermal power plant, metallurgy, chemical industry, solid waste (rubbish) process.
Accompanying drawing explanation
Fig. 1 be in embodiment 1 the utility model passive plate rotating vane type dedusting demister overlook vertical section structure schematic diagram;
Fig. 2 be the venturi air guide channel of the utility model passive plate rotating vane type dedusting demister in embodiment 1 overlook vertical section structure schematic diagram;
Fig. 3 be in embodiment 2 the utility model passive plate rotating vane type dedusting demister overlook vertical section structure schematic diagram;
Fig. 4 be the venturi air guide channel of the utility model passive plate rotating vane type dedusting demister in embodiment 2 overlook vertical section structure schematic diagram;
Fig. 5 be in embodiment 3 the utility model passive plate rotating vane type dedusting demister overlook vertical section structure schematic diagram;
Fig. 6 be the venturi air guide channel of the utility model passive plate rotating vane type dedusting demister in embodiment 3 overlook vertical section structure schematic diagram.
Shown in figure: 1-fume inlet passage, 2-atomizer, 3-dividing plate, 4-aeroscopic plate, 5-demister, 6-smoke-outlet flue, 7-contraction section, 8-throat, 9-diffuser, 10-circular curve type aeroscopic plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described.
Embodiment 1
As shown in Figure 1, a kind of passive plate rotating vane type dedusting demister of the present utility model, comprise the housing that two ends are provided with fume inlet passage 1 and smoke-outlet flue 6, atomizer 2, venturi air guide channel and demister 5 is provided with successively in described housing, wherein, atomizer 2 is adjacent with fume inlet passage 1, and demister 5 is connected with smoke-outlet flue 6.
In the above-described embodiments, for strengthening the flocculating result of flue gas after venturi air guide channel, as depicted in figs. 1 and 2, described venturi air guide channel has many groups, often organizes described venturi air guide channel and is made up of multiple dividing plate 3 and aeroscopic plate 4; Described venturi air guide channel comprise be connected successively contraction section 7, throat 8 and diffuser 9, wherein, described contraction section 7 is adjacent with atomizer 2, and described diffuser 9 is adjacent with demister 5.For strengthening dedusting demist treatment effect, preferably, in described multiple aeroscopic plate 4, the distance between each adjacent aeroscopic plate 4 is 1:8 to 40:1 with the ratio of the height of aeroscopic plate 4; Preferably, the spacing of adjacent aeroscopic plate 4 is 0.2 ~ 1 meter, and the height of aeroscopic plate 4 is 0.5 ~ 8 meter.
In the above-described embodiments, for ensureing that dedusting is except fog effect, described demister is preferably vertical board-like demister, effectively to coordinate with described venturi air guide channel; For the stability of ensuring equipment overall operation, the conduit wall of described venturi air guide channel and described aeroscopic plate 4 and dividing plate 3 by acid-resistant stainless steel, add the carbon steel, fiberglass, the one in PP and PVC that are coated with glass flake anticorrosive coat and form.
In the above-described embodiments, carry out the setting of atomizer 2 according to the actual condition of fume treatment, atomizer 2 can be one group, also can be many groups.Its distribution mode has no special requirements, and can select to distribute in one deck, also can select multiple orientation respectively, specifically to make atomized water contact flue gas for standard to greatest extent; For fully ensureing the cohesion of finely ground particles in flue gas, so that demister trapping, the distance between the distance between the distance between atomizer 2 and dividing plate 3, adjacent separator 3, adjacent aeroscopic plate 4 is all preferably: 5cm ~ 50cm; Described atomizer 2 preferably can spray the device of the atomized water of 20um ~ 60um particle diameter.
In the above-described embodiments, described aeroscopic plate 4 can be simple linear pattern plank frame as depicted in figs. 1 and 2, also can be the structure that shaped form etc. has geometric curved surfaces.
As depicted in figs. 1 and 2, after the utility model passive plate rotating vane type dedusting demister is connected with the clean flue of existing wet type flue gas desulphurization treatment facility, when application the utility model passive plate rotating vane type dedusting demister carries out flue gas ash removal demist process, through the flue gas of the clean air flue emission of wet type flue gas desulphurization treatment facility after fume inlet passage 1 enters, first contact with the atomized water that atomizer 2 sprays, then, through the effect of described venturi air guide channel, processed by demister 5, the flue gas after deep purifying like this is discharged through smoke-outlet flue 6 again.Preferably, described atomizer 2 sprays the atomized water that mist droplet particle size scope is 20um ~ 60um, flue gas contacts with atomized water and mixes, with the mixed flue gas of atomized water after entering described venturi air guide channel, process through contraction section 7, throat 8 and diffuser 9 successively, be then captured in demister; To ensure the trapping of fine particle.
In above-mentioned treatment process for removing sulfur, dust and fog, Gas phase Smoke is vertical or process parallel through passive plate rotating vane type dedusting demister for the clean flue of former wet type flue gas desulphurization treatment facility.
In above-mentioned treatment process for removing sulfur, dust and fog, because flue gas is flue gas with pressure, with the pressure of flue gas self with the power of smoke movement, formed pressure difference-powered at described venturi air guide channel two ends, in described venturi air guide channel, under the conduit wall effect of described venturi air guide channel, flue gas forms the violent disturbance of gas-liquid two-phase, make the fine drop in flue gas, fine solid particle particle, the reunion that collides with each other of the finely ground particles such as aerosol is condensed into large drop, this large drop is caught by passage wall surface liquid film by cyclogenesis again, realize the clean-up effect removing finely ground particles, thus the removal efficiency of finely ground particles in raising flue gas, particularly, after flue gas enters contraction section 7, along with channel narrows, flow velocity increases, when entering throat 8, flue gas flow rate reaches maximum, the process of throat 8 is entered into by the contraction section 7 of venturi air guide channel at this flue gas, channel narrows, flue gas flow rate is accelerated, achieve the increase of relative velocity between the acceleration of flue gas entirety and Gas phase Smoke, in flue gas and flue gas, the direction of motion of finely ground particles changes and accelerates friction, thus make flue gas small water droplets and finely ground particles form turbulent flow and fully clash into, this grit be atomized in flue gas reached capacity with regard to humidity is readily wetted by water, and then the fine drop making in flue gas, fine solid particle particle, the finely ground particles such as aerosol collide with each other and unite cohesion, after flue gas enters diffuser 9, flow of flue gas speed reduces, the cohesion being the nuclei of condensation with finely ground particles such as grits is accelerated, be condensed into the dust-laden drop that diameter is larger, the large drop part of this dust-laden is caught by the liquid film of venturi air guide channel wall surface, remainder enters in demister and is captured, thus reaches the efficient clean-up effect removing finely ground particles in flue gas.
By above-mentioned dedusting demist process, without the need to power consumption as Wet type electric dust-removing device, realize removing the passive type deep purifying of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol, wet processed, effectively prevent the impact on equipment and environment in fume treatment and discharge process; And, arrange because combination can be carried out with the clean flue of existing treatment system, so, significantly save space; And the optimum organization of atomizer 2, venturi air guide channel and demister 5 makes overall with lower resistance operation in device, suitable with three layers of board-like demister resistance of routine, effectively ensure the reliability of device overall operation; In addition, existing wet type flue gas desulphurization treatment facility for installing the utility model passive plate rotating vane type dedusting demister additional is not particularly limited, and the wet flue gas treating apparatus etc. combined as lime stone calcium method desulphurization system, ammonia method desulfurizing system, double alkali method desulfurizing system and wet denitration system, wet method demercuration system and other desulfurization denitration demercurations all can be applied.The passive plate rotating vane type treatment process for removing sulfur, dust and fog that the wet flue gas treating apparatus that application the utility model desulfurization denitration demercuration combines carries out, fully fully utilize the feature of flue gas and equipment, with the pressure of flue gas self for power, collide through venturi air guide channel wall, change the direction of motion and the speed of flue gas, make flue gas through shrinking and diffusion, and then condensation, reach the requirement that demister can trap, then trapped by demister, achieve the fine drop in flue gas, fine solid particle particle, the efficient advanced treating of the finely ground particles such as aerosol, efficiency of dust collection can reach 50% ~ 90%.
Embodiment 2
As shown in Figure 3 and Figure 4, a kind of passive plate rotating vane type dedusting demister of the present utility model, its basic setup and application are with embodiment 1, wherein, described aeroscopic plate 4 is circular curve type aeroscopic plate 10, circular curve plate 10 and dividing plate 3 form venturi air guide channel, this kind of setting can increase collision frequency and the intensity of flue gas and venturi air guide channel wall, accelerate the direction of motion and the speed that change flue gas, increase the dynamics that flue gas shrinks and spreads, thus accelerate condensation, and then more effectively promote the finely ground particles cohesion in flue gas.
Embodiment 3
As shown in Figure 5 and Figure 6, a kind of passive plate rotating vane type dedusting demister of the present utility model, its basic setup and application are with embodiment 1 or embodiment 2, unlike: described venturi air guide channel forms by organizing Venturi tube more, often organizes described Venturi tube and is connected and composed by multiple dividing plate 3 and aeroscopic plate 4.
In above-described embodiment, relative embodiment 1 or embodiment 2 decrease the space of venturi air guide channel, add the chance that flue gas mixes venturi air guide channel wall contact of meeting, are beneficial to and add venturi air guide channel wall to the capturing ability of large drop.
In above-described embodiment, for strengthening the removal effect to finely ground particles in flue gas, preferably, the spacing of adjacent aeroscopic plate 4 is 0.5 meter, the height of aeroscopic plate 4 is 0.7 meter, distance between atomizer 2 and dividing plate 3 is 0.3 meter, and the distance between adjacent separator 3 is 0.2 meter, and the distance between adjacent aeroscopic plate 4 is 0.05 meter; Described atomizer 2 is the device of the atomized water that can spray 30 ~ 40um particle diameter.
Apply above-mentioned passive plate rotating vane type dedusting demister when carrying out dedusting demist process, basic mode, with embodiment 1 or embodiment 2, enters the 50mg/Nm of fume inlet passage 1 with process 3flue gas is example, after the atomized water atomization that atomizer 2 sprays, in described Venturi tube, flue gas is 5m/s ~ 10m/s at the mean flow rate of contraction section 7, flue gas is 15m/s ~ 50m/s at the flow velocity of throat 8, and flue gas is 2m/s ~ 6m/s at the mean flow rate of diffuser 9, after the effect of venturi air guide channel, trap through demister 5, the flue gas of the deep purifying discharged by smoke-outlet flue 6 reaches 10mg/Nm again 3below, efficiency of dust collection reaches more than 80%.
The utility model is not limited to above-mentioned embodiment, those skilled in the art make to any apparent improvement of above-mentioned embodiment or change, all can not exceed the protection domain of design of the present utility model and claims.

Claims (8)

1. passive plate rotating vane type dedusting demister, comprise the housing that two ends are provided with fume inlet passage and smoke-outlet flue, it is characterized in that, atomizer, venturi air guide channel and demister is provided with successively in described housing, wherein, described atomizer and described fume inlet passage adjacent, described demister is connected with described smoke-outlet flue.
2. passive plate rotating vane type dedusting demister according to claim 1, is characterized in that: described demister is vertical board-like demister; Described atomizer is to spray the device that mist droplet particle size scope is the atomized water of 20um ~ 60um.
3. passive plate rotating vane type dedusting demister according to claim 1 and 2, it is characterized in that: described venturi air guide channel comprise be connected successively contraction section, throat and diffuser, wherein, described contraction section is adjacent with described atomizer, and described diffuser is adjacent with described demister.
4. passive plate rotating vane type dedusting demister according to claim 3, is characterized in that: described venturi air guide channel forms by organizing Venturi tube more.
5. passive plate rotating vane type dedusting demister according to claim 3, is characterized in that: described venturi air guide channel has many groups, often organizes described venturi air guide channel and is made up of multiple dividing plate and aeroscopic plate.
6. passive plate rotating vane type dedusting demister according to claim 5, it is characterized in that: in described multiple aeroscopic plate, the distance between adjacent aeroscopic plate is 1:8 to 40:1 with the ratio of the height of aeroscopic plate.
7. passive plate rotating vane type dedusting demister according to claim 5, is characterized in that: the spacing of adjacent described aeroscopic plate is 0.2 ~ 1 meter; The height of described aeroscopic plate is 0.5 ~ 8 meter; Distance between described atomizer and dividing plate is 5cm ~ 50cm; Distance between adjacent described dividing plate is 5cm ~ 50cm.
8. passive plate rotating vane type dedusting demister according to claim 1 and 2, is characterized in that: the conduit wall of described venturi air guide channel is made up of the one in acid-resistant stainless steel, the carbon steel adding painting glass flake anticorrosive coat, fiberglass, PP and PVC.
CN201520025290.5U 2015-01-14 2015-01-14 Passive plate rotating vane type dedusting demister CN204411992U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667687A (en) * 2015-01-14 2015-06-03 田鹏程 Passive plate type wet dust and mist removal device and treatment technology thereof
CN106731433A (en) * 2016-12-27 2017-05-31 盐城工学院 A kind of novel box type coalescer
CN106731391A (en) * 2016-12-27 2017-05-31 盐城工学院 The horizontal Y types ultra-fine grain coalescence case of double jet type
CN106731437A (en) * 2016-12-27 2017-05-31 盐城工学院 The horizontal anchor type ultra-fine grain coalescence case of double jet type
CN106823664A (en) * 2016-12-27 2017-06-13 盐城工学院 A kind of horizontal anchor type ultra-fine grain coalescence case

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104667687A (en) * 2015-01-14 2015-06-03 田鹏程 Passive plate type wet dust and mist removal device and treatment technology thereof
CN106731433A (en) * 2016-12-27 2017-05-31 盐城工学院 A kind of novel box type coalescer
CN106731391A (en) * 2016-12-27 2017-05-31 盐城工学院 The horizontal Y types ultra-fine grain coalescence case of double jet type
CN106731437A (en) * 2016-12-27 2017-05-31 盐城工学院 The horizontal anchor type ultra-fine grain coalescence case of double jet type
CN106823664A (en) * 2016-12-27 2017-06-13 盐城工学院 A kind of horizontal anchor type ultra-fine grain coalescence case

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Effective date of registration: 20170816

Address after: 100097 Haidian District City, Changhua Road, No. 18, Crown Plaza building, room 321

Patentee after: BEIJING NOROMO ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

Address before: 4 Hanwei International Plaza No. 186 Beijing 100160 Fengtai District South Fourth Ring Road No. 7 Building 7 layer

Patentee before: Tian Pengcheng