CN109550339A - A kind of method and device for gathering dust containing volatility valuable element gas with purification - Google Patents

A kind of method and device for gathering dust containing volatility valuable element gas with purification Download PDF

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Publication number
CN109550339A
CN109550339A CN201710888842.9A CN201710888842A CN109550339A CN 109550339 A CN109550339 A CN 109550339A CN 201710888842 A CN201710888842 A CN 201710888842A CN 109550339 A CN109550339 A CN 109550339A
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CN
China
Prior art keywords
gas
tower
tower body
liquid
absorbing liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710888842.9A
Other languages
Chinese (zh)
Inventor
董辉
李含竹
张井凡
屈文杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinzhou Yuxin Glass Fiber Reinforced Plastics Co Ltd
Northeastern University China
Original Assignee
Jinzhou Yuxin Glass Fiber Reinforced Plastics Co Ltd
Northeastern University China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jinzhou Yuxin Glass Fiber Reinforced Plastics Co Ltd, Northeastern University China filed Critical Jinzhou Yuxin Glass Fiber Reinforced Plastics Co Ltd
Priority to CN201710888842.9A priority Critical patent/CN109550339A/en
Publication of CN109550339A publication Critical patent/CN109550339A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention discloses a kind of method and device for gathering dust containing volatility valuable element gas with purification, gas liquid mixture is entered by the gas feed on middle part tower body top, the tangential motion on the inside of outer tower, under the influence of centrifugal force, absorbed dust etc. can get rid of the inner wall surface of outside tower, and go downstream under the action of spiral guide plate, finally flow into the bottom tower body；Absorbing liquid is entered by absorbing liquid import, spray to each spherical sieve tray top absorbing liquid and by bottom tower body go up Lai gas mixing；Mixed gas enters top tower body and carries out gas-liquid separation, and the liquid after separation flows into bottom tower body along inner cylinder；Gas discharge.The present invention has many advantages, such as that absorptivity is high, energy consumption is lower, structure is simple, is easy maintenance, can reach 98% or more for the rate of recovery of valuable element；Corresponding pernicious gas can be removed by configuring corresponding elution absorbing liquid, absorptivity can reach 96% or more.

Description

A kind of method and device for gathering dust containing volatility valuable element gas with purification
Technical field
The invention patent belongs to gas purification processing technology field, and in particular to one kind is for containing volatility valuable element The method and device of gas dust cleaning.
Background technique
In industrial processes, it will usually generate many industrial waste gases, dust, SO are contained in the exhaust gas discharged2、 NOx、HF、CO2Equal ingredients；Some technical process, can there are volatility valuable elements in flue gas, if not to these exhaust gas into Row is effectively treated, and direct emission will cause serious environmental pollution and the wasting of resources.In order to meet environmental requirements, these exhaust gas Should all handle can discharge after reaching discharge standard.
The processing of industrial waste gas usually has dry and wet, and dry method dust is difficult to recycle volatility valuable element, And industrial large-sized device is generally based on wet process.More typical wet absorption purification device respectively has advantage and disadvantage, and disadvantage mainly has suction Yield is lower, and effect is bad, exists in " dead zone ", and equipment is higher etc..
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of efficient method and device, particular technique side Case is as follows:
A method of for gathering dust and purifying containing volatility valuable element gas, gas liquid mixture is by middle part tower body The gas feed in portion enters, and the tangential motion on the inside of outer tower, under the influence of centrifugal force, absorbed dust etc. can get rid of outside tower Inner wall surface, and go downstream under the action of spiral guide plate, finally flow into the bottom tower body；Absorbing liquid is by absorbing liquid Import enter, spray to each spherical sieve tray top absorbing liquid and by bottom tower body go up Lai gas mixing；It is mixed Gas enters top tower body and carries out gas-liquid separation, and the liquid after separation flows into bottom tower body along inner cylinder；Gas discharge.
The present invention further discloses the devices for realizing the method, including top tower body, middle part tower body, bottom tower body； The middle part tower body is telescopic Double-Tower Structure, including inner tower and outside tower；Spray is provided in gap between Nei Ta and outer tower Formula spiral guide plate, the upper end of outer tower is arranged in gas feed, and the direction of gas feed is the tangential direction of outer inner wall of tower；It is interior Sieve plate is disposed in tower, absorbing liquid import is arranged in the top of each sieve plate；Gas-liquid separation plate is arranged in top tower body, and bottom tower body is set Absorbing liquid sink is set, top tower body is connected to bottom tower body by interior tower.
The sieve plate is spherical sieve tray.
The invention has the advantages that the present invention has many advantages, such as that absorptivity is high, energy consumption is lower, structure is simple, is easy maintenance, gram It having taken common wet dedusting (vertical cyclone water film dedusting and fountain dedusting) and there is " dead zone ", equipment is higher, and absorptivity is lower, The disadvantages of effect is bad.The invention patent can reach 98% or more for the rate of recovery of valuable element；To containing pernicious gas Industrial waste gas can remove, such as: SO2, NOx, corresponding pernicious gas, removal efficiency can be removed by configuring corresponding elution absorbing liquid It can reach 96% or more.
Detailed description of the invention
Fig. 1 is dust cleaning apparatus structure schematic diagram；
Fig. 2 is the arrangement schematic diagram of air inlet；
Fig. 3 is the schematic diagram of spherical sieve tray；
Fig. 4 is the structural schematic diagram of inside and outside tower body and its interlayer.
In figure, 1 is top tower body, and 2 be absorbing liquid import, and 3 be middle part tower body, and 4 be bottom tower body, and 5 be outer tower, and 6 be spiral shell Guide plate is revolved, 7 be interior tower, and 8 be spherical sieve tray, and 9 be gas feed, and 10 be gas vent.
Specific embodiment
The present invention is illustrated with reference to the accompanying drawing.
Gas containing volatility valuable element and absorb liquid mixture therefrom 3 top of portion's tower body gas feed 9 enter Interior tower 7 is with the gap of outer tower 5, and spiral downlink, flue dust and pernicious gas are in outer tower 7 under the guidance of fountain spiral guide plate It is absorbed by liquid absorption with the gap of interior tower 5, completes to absorb and purify for the first time；After gas-liquid mixture flows into bottom tower body 4, liquid Body is flowed out from discharge outlet, and the upward ascension of gas, at this point, converging at spherical sieve tray 8 with the absorbing liquid flowed into from absorbing liquid import 2 It is poly-, the fluidized state of vortex is formed under each small spherical surface of spherical sieve tray 8, completes second of absorption and purification；Second Gas after absorption enters top tower body 1, completes gas-water separation in top tower body 1, gas by top 10 row of gas vent Out, absorbing liquid flows into bottom tower body 4 through inner cylinder 7, is handled by bottom tower body discharge.
The gas feed 9 is arranged along 3 top tangential direction of middle part tower body, it is therefore an objective in pressure after gas liquid mixing Under the action of, the tangential motion on the inside of outer tower, under the influence of centrifugal force, absorbed dust can get rid of the inner wall of outside tower body Surface, and go downstream, bottom tower body 4 is finally flowed into, i.e., in absorption liquid bath；Since gas is tangentially to enter in tower, along outer cylinder Inner wall moves in a circle, therefore forms " dead zone " in the cross-section center portion of middle part tower body, therefore is provided with multilayer in central area Spherical tray tower takes full advantage of the Rational structure that space in tower forms inside and outside tower composition.Spherical sieve tray in central area Greater than the percent opening of plane sieve plate, the flux of gas is big, is capable of forming boiling-like drop fog-zone, dust, You Haiqi to gas Body composition absorbs, excellent in efficiency.
Gap setting fountain spiral guide plate, solves gap spray-absorption liquid between the inside and outside tower of above equipment Problem, while problem is moved towards in the guidance for playing gas, is improved residence time of the gas in tower, that is, is improved absorptivity.
The fountain spiral guide plate, which refers to, is arranged many apertures on guide plate, when gas-liquid flows through guide plate, a part Liquid falls from the aperture, the gas mixing with ascension, forms shape spray mixing.This structure increases gas-liquid mixed area, Therefore, more preferable to the recovering effect of pernicious gas.
The air velocity v of internal tower1Generally 1~1.5m/s, in order to guarantee gas in the processing time of internal tower In 3s or more, the height H of internal tower1It should be greater than 4.5m.High and diameter ratioGenerally in 4~7 ranges.Diameter D1 by Empirical formula determines, as follows:
Q is gas treatment amount, m in formula3/h。
External tower cylinder section speed v in operational conditions2Generally 4~6m/s.The gas Q entered from external tower Internal tower is fully entered, thus may determine that the distance between internal tower and external tower S.Under unit height h (1m), gas The expression formula of body treating capacity Q is as follows:
Q=hSv2 (2)
With following formula simultaneous:
Q=900 π v1D1 2 (3)
Thus the distance between internal tower and external tower S are obtained:
And then obtain external tower diameter D2:
D2=D1+2S (5)。

Claims (3)

1.一种用于含有挥发性有价元素气体收尘与净化的方法，其特征在于：气液混合体由中部塔体上部的气体进口进入，沿外塔内侧切线运动，在离心力的作用下，被吸收的粉尘等会甩向外塔的内壁表面，并在螺旋导向板的作用下顺流而下，最终流入所述下部塔体；吸收液由吸收液进口进入，喷淋到每个球面筛板上部的吸收液与由下部塔体升上来的气体混合；混合后的气体进入上部塔体进行气液分离，分离后的液体顺内筒流入下部塔体；气体排放。1. a method for dust collection and purification containing volatile valuable element gas, it is characterized in that: the gas-liquid mixture enters by the gas inlet of the upper part of the middle tower body, moves along the tangential line inside the outer tower, under the effect of centrifugal force , the absorbed dust will be thrown to the inner wall surface of the outer tower, and flow down under the action of the spiral guide plate, and finally flow into the lower tower body; the absorption liquid enters from the absorption liquid inlet and is sprayed onto each spherical surface The absorption liquid on the upper part of the sieve plate is mixed with the gas rising from the lower tower body; the mixed gas enters the upper tower body for gas-liquid separation, and the separated liquid flows into the lower tower body along the inner cylinder; the gas is discharged. 2.一种实现权利要求1所述方法的装置，其特征在于：包括上部塔体、中部塔体、下部塔体；所述中部塔体为套筒式双塔结构，包括内塔和外塔；内塔与外塔之间的间隙中设置有喷淋式螺旋导向板，气体进口设置在外塔的上端，且气体进口的方向为外塔内壁的切线方向；内塔中布置有筛板，每个筛板的上方设置吸收液进口；上部塔体设置气液分离板，下部塔体设置吸收液水槽，上部塔体与下部塔体通过内塔连通。2. a device for realizing the described method of claim 1, it is characterized in that: comprise upper tower body, middle tower body, lower tower body; Described middle tower body is sleeve type double tower structure, comprises inner tower and outer tower ; A spray spiral guide plate is arranged in the gap between the inner tower and the outer tower, the gas inlet is arranged at the upper end of the outer tower, and the direction of the gas inlet is the tangential direction of the inner wall of the outer tower; sieve plates are arranged in the inner tower, each An absorption liquid inlet is arranged above each sieve plate; a gas-liquid separation plate is arranged in the upper tower body, an absorption liquid water tank is arranged in the lower tower body, and the upper tower body and the lower tower body are communicated through the inner tower. 3.根据权利要求2所述的装置，其特征在于：所述筛板为球面筛板。3. The device according to claim 2, wherein the sieve plate is a spherical sieve plate.
CN201710888842.9A 2017-09-27 2017-09-27 A kind of method and device for gathering dust containing volatility valuable element gas with purification Pending CN109550339A (en)

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CN201710888842.9A CN109550339A (en) 2017-09-27 2017-09-27 A kind of method and device for gathering dust containing volatility valuable element gas with purification

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021149370A1 (en) * 2020-01-21 2021-07-29
CN115337738A (en) * 2022-07-10 2022-11-15 无锡市张泾压力容器制造有限公司 Industrial tail gas-liquid separation processing apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU991640A1 (en) * 1981-06-01 1986-08-30 Предприятие П/Я А-1158 Dust collector
CN2936409Y (en) * 2006-07-24 2007-08-22 李长康 Super-filter water purifier
CN205586717U (en) * 2016-03-21 2016-09-21 李丽雪 Energy -concerving and environment -protective gas cleaning device
CN205948569U (en) * 2016-06-29 2017-02-15 中山市南方环保工程设备有限公司 High -efficient wet dust collector
CN107261772A (en) * 2017-07-18 2017-10-20 东北大学 A kind of method and device for being used to gather dust with purification containing volatility valuable element gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU991640A1 (en) * 1981-06-01 1986-08-30 Предприятие П/Я А-1158 Dust collector
CN2936409Y (en) * 2006-07-24 2007-08-22 李长康 Super-filter water purifier
CN205586717U (en) * 2016-03-21 2016-09-21 李丽雪 Energy -concerving and environment -protective gas cleaning device
CN205948569U (en) * 2016-06-29 2017-02-15 中山市南方环保工程设备有限公司 High -efficient wet dust collector
CN107261772A (en) * 2017-07-18 2017-10-20 东北大学 A kind of method and device for being used to gather dust with purification containing volatility valuable element gas

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021149370A1 (en) * 2020-01-21 2021-07-29
CN114025865A (en) * 2020-01-21 2022-02-08 富士电机株式会社 Exhaust gas treatment device
EP3978137A4 (en) * 2020-01-21 2022-10-19 Fuji Electric Co., Ltd. Exhaust gas treatment device
JP7276518B2 (en) 2020-01-21 2023-05-18 富士電機株式会社 Exhaust gas treatment device
CN115337738A (en) * 2022-07-10 2022-11-15 无锡市张泾压力容器制造有限公司 Industrial tail gas-liquid separation processing apparatus
CN115337738B (en) * 2022-07-10 2023-09-22 无锡市张泾压力容器制造有限公司 Industrial tail gas-liquid separation processing apparatus

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Application publication date: 20190402