CN107261772A - A kind of method and device for being used to gather dust with purification containing volatility valuable element gas - Google Patents
A kind of method and device for being used to gather dust with purification containing volatility valuable element gas Download PDFInfo
- Publication number
- CN107261772A CN107261772A CN201710584175.5A CN201710584175A CN107261772A CN 107261772 A CN107261772 A CN 107261772A CN 201710584175 A CN201710584175 A CN 201710584175A CN 107261772 A CN107261772 A CN 107261772A
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- CN
- China
- Prior art keywords
- gas
- tower
- tower body
- liquid
- absorbing liquid
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Classifications
-
- 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
- B01D47/12—Washers with plural different washing sections
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- 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
- B01D53/1406—Multiple stage absorption
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- 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
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2047—Hydrofluoric acid
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
Abstract
The present invention discloses a kind of method and device for being used to gather dust with purification containing volatility valuable element gas, gas liquid mixture is entered by the gas feed on middle part tower body top, tangential motion on the inside of along outer tower, under the influence of centrifugal force, absorbed dust etc. can get rid of the inner wall surface of outside tower, and gone downstream in the presence 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 is discharged.The present invention has the advantages that absorptivity is high, energy consumption is relatively low, simple in construction, easily overhaul, and the rate of recovery for valuable element can reach more than 98%；Corresponding pernicious gas can be removed by configuring corresponding elution absorbing liquid, absorptivity can reach more than 96%.
Description
Technical field
Patent of the present invention belongs to gas purification processing technology field, and in particular to one kind is used to contain volatility valuable element
The method and device of gas dust cleaning.
Background technology
In industrial processes, it will usually produce many industrial waste gases, dust, SO are contained in the waste gas discharged2、
NOx、HF、CO2Deng composition；Some technical process, can leave volatility valuable element, if do not entered to these waste gas in flue gas
Row effectively processing, directly discharges, can cause serious environmental pollution and the wasting of resources.In order to meet environmental requirement, these waste gas
It all should handle and reach and can be discharged after discharge standard.
The processing of industrial waste gas generally has dry and wet, and dry method dust is difficult that volatility valuable element is reclaimed,
And industrial large-sized device is general based on wet method.More typical wet absorption purifier respectively has advantage and disadvantage, and shortcoming mainly has suction
Yield is relatively low, and effect is bad, exists in " dead band ", and equipment is higher etc..
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of efficient method and device, particular technique side
Case is as follows：
A kind of method for being used to gather dust with purifying containing volatility valuable element gas, gas liquid mixture is in middle part tower body
The gas feed in portion enters, and along outer tower inner side tangential motion, under the influence of centrifugal force, absorbed dust etc. can get rid of outside tower
Inner wall surface, and gone downstream in the presence 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 is discharged.
The present invention further discloses the device for realizing methods described, 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 with gap between Nei Ta and outer tower
Formula spiral guide plate, gas feed is set in the upper end of outer tower, and the direction of gas feed is the tangential direction of outer inner wall of tower；It is interior
Sieve plate is disposed with tower, the top of each sieve plate sets absorbing liquid import；Top tower body sets gas-liquid separation plate, and bottom tower body is set
Absorbing liquid tank is put, top tower body is connected with bottom tower body by interior tower.
The sieve plate is spherical sieve tray.
It is an advantage of the invention that：The present invention has the advantages that absorptivity is high, energy consumption is relatively low, simple in construction, easily overhaul, gram
Take common wet dedusting (vertical cyclone water film dedusting and fountain dedusting) and there is " dead band ", equipment is higher, and absorptivity is relatively low,
The shortcomings of effect is bad.Patent of the present invention can reach more than 98% for the rate of recovery of valuable element；To containing pernicious gas
Industrial waste gas can be removed, such as：SO2, NOx, can remove corresponding pernicious gas, removal efficiency by configuring corresponding elution absorbing liquid
It can reach more than 96%.
Brief description of the drawings
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 representation 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.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings.
Gas feed 9 of the gas containing volatility valuable element with absorbing the liquid mixture therefrom top of portion's tower body 3 enters
In the gap of interior tower 7 and outer tower 5, spiral is descending under the guiding of fountain spiral guide plate, and flue dust and pernicious gas are in outer tower 7
With being absorbed by liquid absorption in the gap of interior tower 5, complete to absorb for the first time and purification；Gas-liquid mixture is flowed into after bottom tower body 4, liquid
Body flows out from discharge outlet, and the upward ascension of gas, now, is converged with the absorbing liquid that is flowed into from absorbing liquid import 2 at spherical sieve tray 8
It is poly-, the fluidized state of vortex is formed under each small sphere of spherical sieve tray 8, second is completed and absorbs and purification；Second
Gas after absorption enters top tower body 1, completes gas-water separation in top tower body 1, gas by top the row of gas vent 10
Go out, absorbing liquid flows into bottom tower body 4 through inner cylinder 7, handled by bottom tower body discharge.
Described gas feed 9 is arranged along the top tangential direction of middle part tower body 3, it is therefore an objective in pressure after gas liquid mixing
In the presence of, along outer tower inner side tangential motion, under the influence of centrifugal force, absorbed dust can get rid of the inwall of outside tower body
Surface, and go downstream, bottom tower body 4 is finally flowed into, that is, is absorbed in liquid bath；Because gas is tangentially to enter in tower, along outer barrel
Inwall moves in a circle, therefore forms " dead band " 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
More than the percent opening of plane sieve plate, the flux of its gas is big, can form boiling-like drop fog-zone, dust, You Haiqi to gas
Body composition absorbs, excellent in efficiency.
Gap is provided with fountain spiral guide plate between the inside and outside tower of the said equipment, solves gap spray-absorption liquid
Problem, while problem is moved towards in the guiding for playing gas, improves residence time of the gas in tower, that is, improves absorptivity.
The fountain spiral guide plate refers to set 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, it is more preferable to the recovering effect of pernicious gas.
The air velocity v of internal tower1Generally 1~1.5m/s, in order to ensure the processing time of gas internally tower
In more than 3s, the height H of internal tower1It should be greater than 4.5m.High and diameter ratioTypically in the range of 4~7.Diameter D1 is by passing through
Formula determination is tested, it is as follows：
Q is gas treatment amount, m in formula3/h。
Outside tower cylinder section speed v in operational conditions2Generally 4~6m/s.From the gas Q of outside tower entry
Internal tower is fully entered, thus may determine that the distance between internal tower and outside tower S.Under unit height h (1m), gas
Body treating capacity Q expression formula is as follows：
Q=hSv2 (2)
With following formula simultaneous：
Q=900 π v1D1 2 (3)
Thus the distance between internal tower and outside tower S are drawn：
And then draw outside tower diameter D2：
D2=D1+2S (5)。
Claims (3)
1. a kind of method for being used to gather dust with purifying containing volatility valuable element gas, it is characterised in that：Gas liquid mixture by
The gas feed on middle part tower body top enters, along outer tower inner side tangential motion, under the influence of centrifugal force, absorbed dust etc.
The inner wall surface of outside tower can be got rid of, and is gone downstream in the presence of spiral guide plate, the bottom tower body is finally flowed into；Absorb
Liquid is entered by absorbing liquid import, spray to each spherical sieve tray top absorbing liquid with by bottom tower body go up Lai gas mix
Close；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 is arranged
Put.
2. a kind of device for realizing claim 1 methods described, it is characterised in that：Including top tower body, middle part tower body, lower tower
Body；The middle part tower body is telescopic Double-Tower Structure, including inner tower and outside tower；Spray is provided with gap between Nei Ta and outer tower
Pouring formula spiral guide plate, gas feed is set in the upper end of outer tower, and the direction of gas feed is the tangential direction of outer inner wall of tower；
Sieve plate is disposed with interior tower, the top of each sieve plate sets absorbing liquid import；Top tower body sets gas-liquid separation plate, bottom tower body
Absorbing liquid tank is set, and top tower body is connected with bottom tower body by interior tower.
3. device according to claim 2, it is characterised in that：The sieve plate is spherical sieve tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584175.5A CN107261772A (en) | 2017-07-18 | 2017-07-18 | A kind of method and device for being used to gather dust with purification containing volatility valuable element gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584175.5A CN107261772A (en) | 2017-07-18 | 2017-07-18 | A kind of method and device for being used to gather dust with purification containing volatility valuable element gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107261772A true CN107261772A (en) | 2017-10-20 |
Family
ID=60077776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710584175.5A Withdrawn CN107261772A (en) | 2017-07-18 | 2017-07-18 | A kind of method and device for being used to gather dust with purification containing volatility valuable element gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107261772A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550339A (en) * | 2017-09-27 | 2019-04-02 | 东北大学 | A kind of method and device for gathering dust containing volatility valuable element gas with purification |
| CN111495137A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and method for industrial flue gas catalytic cracking |
| CN112933901A (en) * | 2019-12-11 | 2021-06-11 | 青岛双瑞海洋环境工程股份有限公司 | Integrated device for waste gas desulfurization and inert gas supply |
| CN113230870A (en) * | 2020-12-15 | 2021-08-10 | 岑顺彬 | Desulfurizing tower dual cycle wet process filtration system for chemical production |
| CN114917716A (en) * | 2022-05-23 | 2022-08-19 | 广州兴丰能源科技有限公司 | Spiral adsorption tower structure and process method for gas purification of biomass derived gas |
| CN115594205A (en) * | 2022-10-17 | 2023-01-13 | 东北大学（Cn） | Dust-discharging and heat-insulating annular gap device and method for spray pyrolysis furnace |
-
2017
- 2017-07-18 CN CN201710584175.5A patent/CN107261772A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550339A (en) * | 2017-09-27 | 2019-04-02 | 东北大学 | A kind of method and device for gathering dust containing volatility valuable element gas with purification |
| CN112933901A (en) * | 2019-12-11 | 2021-06-11 | 青岛双瑞海洋环境工程股份有限公司 | Integrated device for waste gas desulfurization and inert gas supply |
| CN111495137A (en) * | 2020-04-26 | 2020-08-07 | 安徽顺达环保科技股份有限公司 | Desulfurization and denitrification equipment and method for industrial flue gas catalytic cracking |
| CN113230870A (en) * | 2020-12-15 | 2021-08-10 | 岑顺彬 | Desulfurizing tower dual cycle wet process filtration system for chemical production |
| CN113230870B (en) * | 2020-12-15 | 2022-07-01 | 山东莱钢节能环保工程有限公司 | Desulfurizing tower dual cycle wet process filtration system for chemical production |
| CN114917716A (en) * | 2022-05-23 | 2022-08-19 | 广州兴丰能源科技有限公司 | Spiral adsorption tower structure and process method for gas purification of biomass derived gas |
| CN115594205A (en) * | 2022-10-17 | 2023-01-13 | 东北大学（Cn） | Dust-discharging and heat-insulating annular gap device and method for spray pyrolysis furnace |
| CN115594205B (en) * | 2022-10-17 | 2023-09-19 | 东北大学 | Dust exhausting and heat insulating annular gap device and method for spray pyrolysis furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171020 |