CN206372640U - Efficient fume separator - Google Patents

Efficient fume separator Download PDF

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Publication number
CN206372640U
CN206372640U CN201621078779.XU CN201621078779U CN206372640U CN 206372640 U CN206372640 U CN 206372640U CN 201621078779 U CN201621078779 U CN 201621078779U CN 206372640 U CN206372640 U CN 206372640U
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China
Prior art keywords
fume separator
cylindrical portion
main body
water
dehydration
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CN201621078779.XU
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李朝东
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BEIJING BLUE SKY ENVIRONMENTAL SCIENCE & TECHNOLOGY Co Ltd
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BEIJING BLUE SKY ENVIRONMENTAL SCIENCE & TECHNOLOGY Co Ltd
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Abstract

Efficient fume separator, including fume separator main body, pre-dehydration device is installed at the import of the fume separator main body, the pre-dehydration device is made up of 90 ° of bend pipes, baffle plate and drainpipe, the bottom of wherein 90 ° bend pipes fixes a drainpipe, and baffle plate is installed in the top of drainpipe;Refined dedusting device is installed at the middle part of fume separator main body, and the refined dedusting device is made up of the row's of number Nozzle combination;The inside of fume separator main body is provided with dehydrating demisting device;Tapering type baffle device for water is arranged on inside fume separator body shell;The efficient fume separator is located between new OG wet method dedusting systems and blower fan, complete equipment integrates predrainage, refined dedusting, dehydrating demisting, tapering type dehydration device, to the further dedusting dehydration of flue gas Jing Guo new OG wet method dedusting systems dedusting, whole equipment allows inlet gas concentration≤50mg/m3,≤20mg/m can be reached by the smoke emissioning concentration that efficient fume separator is purified after being dehydrated3

Description

Efficient fume separator
Technical field
The utility model is related to Environmental-protecting dust-removing field, especially a kind of to be used for metallurgical converter one-time dedusting flue gas purification system In efficient fume separator.
Background technology
Contain a large amount of carbon monoxide (CO) in the flue gas produced during pneumatic steelmaking, because dust content is up to 80~120g/ Nm3, flue gas had to pass through after processing, and dust content, which is dropped to below national standard, could carry out coal-gas recovering or diffuse air In, issued according to newest《Environmental Protection Department file ring sends out [2014] No. 55》File, it is desirable to which primary dedusting system transform LT as Dry method or new OG methods.
First, best clean-up effect at LT dry-dedusting systems initial stages can reach 10mg/m3, due to the spray of devaporizer Water primarily serves cooling and quenched effect, when converter starts blowing, and the flue-gas temperature for carrying a large amount of dust is also not up to sprayed water The temperature of startup, flue dust ratio resistance is higher, and electric precipitation arresting efficiency is low, clean-up effect is poor, causes converter to be put when just starting blowing Scattered tower has tobacco and emerged, and due to the easy fouling of electrode, is difficult to clean up, and electrode can not discharge, and can cause dust separation effect It is unstable, it is impossible to ensure long-term, stably reaching standard discharge.
2nd, new OG wet dedustings technology by improving year by year, and discharge at present can meet Standard, the 5th generation New OG wet dedustings dust emission can be with≤30mg/m3, better than national standard.
In summary, LT dry method dusts and the 5th generation new OG wet dedustings technology dust emission concentration can not all meet length Phase, stably≤20mg/m3Requirement, it is necessary to develop new cleaner, meet increasingly serious coal-gas recovering and discharge standard.
Utility model content
The utility model aims to provide a kind of efficient fume separator of reduction fume emission.
To achieve the above object, the utility model provides following technical scheme:Efficient fume separator, including cloud separation At device main body, the import of the fume separator main body install pre-dehydration device, the pre-dehydration device by 90 ° of bend pipes, baffle plate and Drainpipe is constituted, wherein the bottom of 90 ° of bend pipes fixes a drainpipe, baffle plate, drainpipe connection water seal are installed in the top of drainpipe;Dirt Refined dedusting device is installed at the middle part of mist separator main body, and the refined dedusting device is made up of the row's of number Nozzle combination, and Nozzle combination is by counting The nozzle composition of individual uniform annular array distribution;The inside of fume separator main body is provided with dehydrating demisting device, the dehydrating demisting Device is dehydrated monomer composition by several eddy flows, and eddy flow dehydration monomer is interior to be provided with swirl vane integrally in cylinder, and each eddy flow takes off Aqueous monomer is respectively provided with drainage arrangement, and the drainage arrangement of several eddy flow dehydration monomers connects water seal by total comb;Tapering type dash Device is arranged on inside fume separator body shell, and above dehydrating demisting device, the top of tapering type baffle device for water is set There is conical baffle.
It is used as further scheme of the present utility model:The tapering type baffle device for water is by the first cylindrical portion, the second cylindrical portion With the 3rd cylindrical portion composition, the diameter of the first cylindrical portion, the second cylindrical portion and the 3rd cylindrical portion is sequentially reduced, the first cylindrical portion with Connected, connected between the second cylindrical portion and the 3rd cylindrical portion by conus portion by conus portion between second cylindrical portion, wherein the The top inner circumferential of two cylindrical portions is provided with conical baffle, and the base diameter of conical baffle is less than top diameter.
It is used as further scheme of the present utility model:The bottom of the fume separator main body is installed by connection water seal.
It is used as further scheme of the present utility model:The nozzle connects nozzle water inlet pipe.
It is used as further scheme of the present utility model:The baffle plate and Y-axis angle are 30~40 °, in eddy flow dehydration monomer Swirl vane and the angle of X-axis be 60~65 °.
Compared with prior art, the beneficial effects of the utility model are:The efficient fume separator is located at new OG wet methods Between dust pelletizing system and blower fan, complete equipment integrates predrainage, refined dedusting, dehydrating demisting, tapering type dehydration device, to warp The further dedusting dehydration of flue gas of new OG wet method dedusting systems dedusting is crossed, whole equipment allows inlet gas concentration≤50mg/m3, warp The smoke emissioning concentration crossed after efficient fume separator purification dehydration can reach≤20mg/m3
Brief description of the drawings
Fig. 1 is the top view of pre-dehydration device of the present utility model;
Fig. 2 is the sectional view of pre-dehydration device of the present utility model;
Fig. 3 is the structure chart of refined dedusting device of the present utility model;
Fig. 4 is the top view of refined dedusting device of the present utility model;
Fig. 5 is the structure chart of fume separator main body of the present utility model;
Fig. 6 is the structure chart of dehydrating demisting device of the present utility model;
Fig. 7 is the structure chart of tapering type baffle device for water of the present utility model;
Fig. 8 is the upward view of tapering type baffle device for water of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1-8, the utility model embodiment, efficient fume separator, including fume separator main body 1, institute Installation pre-dehydration device at the import of fume separator main body 1 is stated, the pre-dehydration device is by 90 ° of bend pipes 2, baffle plate 3 and drainpipe 4 Composition, wherein the bottom of 90 ° of bend pipes 2 fixes a drainpipe 4, baffle plate 3 is installed in the top of drainpipe 4, and baffle plate 3 and Y-axis angle are 30 ~40 °, the connection water seal 12 of drainpipe 4;
Refined dedusting device is installed at the middle part of fume separator main body 1, and the refined dedusting device is made up of the row's of number Nozzle combination, is sprayed Mouth combination is made up of the nozzle 5 of several uniform annular array distributions;
The inside of fume separator main body 1 is provided with dehydrating demisting device, and the dehydrating demisting device is dehydrated single by several eddy flows Body 6 is constituted, and overall eddy flow dehydration monomer 6 is Cylindrical Cyclone structure in cylinder, interior to be provided with swirl vane, swirl vane and X Axle clamp angle is 60~65 °, and each eddy flow dehydration monomer 6 is respectively provided with drainage arrangement, and the drainage arrangement of several eddy flow dehydration monomers 6 leads to Cross the total connection of comb 13 water seal 12;
Tapering type baffle device for water is arranged on the enclosure interior of fume separator main body 1, tapered above dehydrating demisting device The top of formula baffle device for water is provided with conical baffle 11.
Above-mentioned, tapering type baffle device for water is made up of the first cylindrical portion 7, the second cylindrical portion 8 and the 3rd cylindrical portion 9, the first circle The diameter in post portion 7, the second cylindrical portion 8 and the 3rd cylindrical portion 9 is sequentially reduced, and is passed through between the first cylindrical portion 7 and the second cylindrical portion 8 Conus portion 10 is connected, and is connected between the second cylindrical portion 8 and the 3rd cylindrical portion 9 by conus portion 10, wherein the top of the second cylindrical portion 8 Portion's inner circumferential is provided with conical baffle 11, and the base diameter of conical baffle 11 is less than top diameter.
Above-mentioned, connection water seal 12 is installed in the bottom of fume separator main body 1.
It is above-mentioned, the connection nozzle water inlet pipe of nozzle 5.
Design feature and its advantage of the present utility model:Increase essence between new OG wet method dedusting systems and blower fan to remove Dirt, dehydration device (efficient fume separator), complete equipment collect predrainage, refined dedusting, dehydrating demisting, tapering type dehydration device in One, is dehydrated to the further dedusting of flue gas Jing Guo new OG wet method dedusting systems dedusting, and whole equipment permission inlet gas concentration≤ 50mg/m3,≤20mg/m can be reached by the smoke emissioning concentration that efficient fume separator is purified after being dehydrated3
The first, pre-dehydration device is set before efficient fume separator, and abjection Management of Pipeline Mechanical Equipment water (contains a large amount of powder in mechanical water Dirt), reduce flue gas inlet gas concentration;
2nd, efficient fume separator uses clean circulating water dedusting (suspension≤5mg/L), using multiple spray mode, clean-up effect More preferably;
3rd, contain the moisture content in a large amount of dust, abjection flue gas in wet dedusting turbid circulating water, gas cleaning effect can be improved Really, efficient fume separator is made up of multiple eddy flow dehydration devices, flue gas being more evenly distributed in cylinder, and dehydrating effect is more It is good;
4th, it is dehydrated using tapering type baffle device for water, further the moisture content in reduction flue gas.
Operation principle and its application method of the present utility model:Pre-dehydration device:Slough new OG wet-ethod dust-removal dehydrators Saturated flue gas condensed water afterwards, reduces the burden to blower fan;
Refined dedusting device:To the further refined dedusting of flue gas, service life of fan is improved;
Dehydrating demisting device:Saturated flue gas after refined dedusting is further dehydrated;
Tapering type baffle device for water:Essence dehydration.
The saturated flue gas temperature of new OG dust pelletizing systems outlet is general at 65 degree or so, by heat dissipation of pipeline, and temperature is reduced, Saturated flue gas water capacity is reduced, and part moisture content is separated out, while new OG wet method dedusting systems dehydrator dewatering efficiency is 99%, cigarette The mechanical water for having 1% in gas is not deviate from, and above-mentioned two parts mechanical water contains dust, to improve efficiency of dust collection, must carry out predrainage.
Pre-dehydration device is arranged at fume separator import, and gas approach flow velocity is more than 18m/s, and flue gas is curved by 90 degree Pipe, hits, baffle plate and Y-axis angle are 30~40 ° with the baffle plate that is arranged in rear part of bent pipe, flue gas by the shock with baffle plate and from Some mechanical water in the effect of mental and physical efforts, abjection flue gas, water seal is discharged into by pipeline.Pre-dehydration device dewatering efficiency >=60%.
Refined dedusting device is arranged in fume separator housing, and using multiple spray form, the shock for improving grit and water droplet is several Rate, using multiple rows of Nozzle combination, sprays in housing with inverted draft, causes higher relatively fast as formed by being superimposed aqueous vapor Degree, shock probability is higher, and dust removing effects are better.Refined dedusting uses clean circulating water, and hydraulic pressure is higher than 0.5MPa, and atomizing particle is small, simultaneously Clean circulating water temperature is less than 35 degree, is conducive to the saturation water in flue gas cool-down, flue gas to separate out, and improves dewatering efficiency and efficiency of dust collection. To reduce drag losses, too high drag losses is prevented.
Dehydrating demisting device is arranged on fume separator enclosure interior, the top of refined dedusting device, after refined dedusting Flue gas enters dehydration, demister.Dehydrating demisting device is the fume separator that multiple eddy flows are dehydrated monomer composition, each eddy flow Dehydration monomer is Cylindrical Cyclone structure, and inlet velocity is 5~8m/s, and swirl vane and X-axis angle are 60~65 °, Mei Gedan Body is respectively provided with drainage arrangement, and all tube bank drainings are merged together, and are expelled to negative-pressure water-sealing.
Tapering type baffle device for water is dehydrated for essence, is arranged on efficient fume separator enclosure interior, fume separator device Side, the flue gas for going out cloud separator flows at a certain angle, rotates and flows up after shock cylinder, utilizes the change of air velocity Change, deviate from the mechanical water in flue gas, using conical water fender dash, the mechanical water of abjection is flowed down along barrel to be taken off with tube bank Water together enter negative-pressure water-sealing.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It may be appreciated other embodiment.

Claims (5)

1. efficient fume separator, including fume separator main body, it is characterised in that at the import of the fume separator main body Pre-dehydration device is installed, the pre-dehydration device is made up of 90 ° of bend pipes, baffle plate and drainpipe, wherein row is installed in the bottom of 90 ° of bend pipes Water pipe, the top of drainpipe is installed by baffle plate, drainpipe connection water seal;Refined dedusting device is installed at the middle part of fume separator main body, The refined dedusting device is made up of the row's of number Nozzle combination, and Nozzle combination is made up of the nozzle of several uniform annular array distributions;Cloud The inside of separator main body is provided with dehydrating demisting device, and the dehydrating demisting device is dehydrated monomer composition by several eddy flows, and eddy flow takes off Aqueous monomer is interior to be provided with swirl vane integrally in cylinder, and each eddy flow dehydration monomer is respectively provided with drainage arrangement, several eddy flow dehydrations The drainage arrangement of monomer connects water seal by total comb;Tapering type baffle device for water is arranged on inside fume separator body shell, Above dehydrating demisting device, the top of tapering type baffle device for water is provided with conical baffle.
2. efficient fume separator according to claim 1, it is characterised in that the tapering type baffle device for water is by the first circle Post portion, the second cylindrical portion and the 3rd cylindrical portion composition, the diameter of the first cylindrical portion, the second cylindrical portion and the 3rd cylindrical portion subtract successively It is small, connected between the first cylindrical portion and the second cylindrical portion by conus portion, circle is passed through between the second cylindrical portion and the 3rd cylindrical portion Tapering is connected, wherein the top inner circumferential of the second cylindrical portion is provided with conical baffle, the base diameter of conical baffle is less than top Diameter.
3. efficient fume separator according to claim 1, it is characterised in that the bottom peace of the fume separator main body Load water receiving is sealed.
4. efficient fume separator according to claim 1, it is characterised in that the nozzle connects nozzle water inlet pipe.
5. efficient fume separator according to claim 1, it is characterised in that the baffle plate and Y-axis angle be 30~ 40 °, swirl vane and the angle of X-axis in eddy flow dehydration monomer are 60~65 °.
CN201621078779.XU 2016-09-23 2016-09-23 Efficient fume separator Active CN206372640U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108300832A (en) * 2018-05-09 2018-07-20 北京博鹏中科环保科技有限公司 A kind of horizontal dehydrator of pipeline
CN113621752A (en) * 2021-08-31 2021-11-09 东北大学 Converter primary dust removal system capable of reducing particulate matter emission and use method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108300832A (en) * 2018-05-09 2018-07-20 北京博鹏中科环保科技有限公司 A kind of horizontal dehydrator of pipeline
CN113621752A (en) * 2021-08-31 2021-11-09 东北大学 Converter primary dust removal system capable of reducing particulate matter emission and use method thereof
CN113621752B (en) * 2021-08-31 2022-08-05 东北大学 Converter primary dust removal system capable of reducing particulate matter emission and use method thereof

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