CN109482050A - A kind of moving bed flue gas purification device - Google Patents
A kind of moving bed flue gas purification device Download PDFInfo
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- CN109482050A CN109482050A CN201811536950.0A CN201811536950A CN109482050A CN 109482050 A CN109482050 A CN 109482050A CN 201811536950 A CN201811536950 A CN 201811536950A CN 109482050 A CN109482050 A CN 109482050A
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- flue gas
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/06—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/08—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 adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds according to the "moving bed" method
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention belongs to flue gases purification fields, disclose a kind of moving bed flue gas purification device.The moving bed flue gas purification device includes tower body, air inlet area, the first purifying area, flue area, the second purifying area and the outlet area set gradually along flow of flue gas direction is equipped in the tower body, flue gas can enter first purifying area by the air inlet area in a counter-current fashion, and can enter second purifying area by the flue area in a manner of cross-flow.Moving bed flue gas purification device of the invention combines the absorbing process of cross-flow and adverse current, and existing counter-current process flue gas contacts abundant advantage with purifying area, and the advantage for having cross-flow technique purifying area internal resistance small；Device is small compared with pure counter-current process flue gas resistance, structure is simple, operating cost is low；Purer cross-flow technique flue gas contacts sufficiently with active carbon, and kinetics performance is good, is remarkably improved purification efficiency；Installation area is small, adsorbent operation is unobstructed, wear rate is small, utilization rate is very high, has considerable economic benefit.
Description
Technical field
The present invention relates to flue gases purification field more particularly to a kind of moving bed flue gas purification devices.
Background technique
The charcoal trap equipment of industrial application is generally fixed bed and moving bed process at present.Moving bed process is mostly
Cross-flow technique and counter-current process.Cross-flow technique refers to flue gas horizontal through activated carbon adsorption bed, active carbon edge in moving bed
Gravity direction moves from top to bottom, and flue gas and active carbon are in the misorientation type of flow, which has that tower inner member is few, tower internal resistance
The advantages that small, but since flue gas is horizontal through activated carbon adsorption bed, so that the active carbon of air inlet face reaches saturation at first, if together
When then will lead to activated carbon adsorption capacity from bottom discharge using insufficient, in order to reach higher purification efficiency, then active carbon
Internal circulating load become larger, and then increase active carbon abrasion, improve operating cost；Counter-current process refers to that flue gas passes vertically through activity
Charcoal adsorption bed, active carbon move in moving bed along gravity direction from top to bottom, and flue gas is moved towards with active carbon, the technique
Flue gas contacted with active carbon sufficiently, kinetic reaction condition it is good, but since activated carbon adsorption bed is thicker, system resistance is larger,
The equipment pressure head such as blower is all larger, and then improves operating cost.
The Chinese patent of Publication No. CN108380041 A is " a kind of based on active carbon/coke coke oven flue gas desulphurization denitration system
A kind of active carbon desulfurization denitrification apparatus is disclosed in system and method ", and absorption tower is substantially a kind of active carbon/coke and flue gas adverse current
Mobile bed apparatus is contacted, flue gas contacts preferably with active carbon, and overall efficiency is higher, but flue gas is with ammonia into just mixing before tower,
In actual production in tower sulphur ammonium mineralization problem than more serious.
A kind of active carbon shifting is disclosed in a kind of Chinese patent " system for desulfuration and denitration " of Publication No. CN108371873 A
Dynamic bed flue gas purification device, it is characterized in that absorbed layer ante-chamber, absorbed layer back cavity are equipped in absorption tower, after bulky grain active carbon is placed in
Chamber, little particle active carbon are placed in ante-chamber, can prevent active carbon powdered carbon from being blown out from bed by flue gas, therefore can realize and reduce out
The purpose of mouth exhaust gas dust.Its core is a kind of cross-flow moving bed technology of single-stage multi-layer, and denitrification efficiency is not high.
A kind of activated coke is disclosed in the Chinese patent " activated coke flue gas purification device " of Publication No. CN107754551 A
Flue gas purification device device, it is characterized in that feeding warehouse, adsorption chamber and discharging bin that device is set gradually from top to bottom；The people of setting
Adsorption chamber is divided into air inlet adsorption zone and outlet adsorption zone, avoids activated coke in tower by word grid and triangular prism shape regulating part
Interior unordered flowing；By adjusting the size and discharging bin siding leaning angle angle of triangular prism shaped inner member, change air inlet face
With two, outlet face adsorption layer reclaiming cone mouth width degree and blanking velocity so that activated coke adsorption capacity and flue gas in two adsorption layers
Concentration matches, and then improves purification efficiency.The device is substantially a kind of cross-flow moving bed technique of single-stage, and flue gas connects with active carbon
Contacting surface is smaller, and active carbon effective rate of utilization is not high.
In order to reach higher purification efficiency, the device designed in current patent is simultaneously imperfect, cannot effectively combine each
The advantages of technique.It would therefore be highly desirable to need a kind of Novel movable bed flue gas purification device to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of moving bed flue gas purification devices, to solve existing moving bed gas cleaning dress
Set the not high problem of purification efficiency.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of moving bed flue gas purification device, including tower body, interior be equipped with of the tower body set gradually along flow of flue gas direction
Air inlet area, the first purifying area, flue area, the second purifying area and outlet area, flue gas can be in a counter-current fashion by the air inlet
Area enters first purifying area, and can enter second purifying area by the flue area in a manner of cross-flow.
Preferably, the air inlet area is arranged in parallel with first purifying area, the flue area, second purifying area
It is arranged in parallel with the outlet area, and the flue area and second purifying area are located at the surface of first purifying area,
The outlet area is located at the surface of the air inlet area.
Preferably, being equipped with porous plate in first purifying area, first purification is partitioned into two by the porous plate
Part, and the bottom of each section is equipped with outlet valve, the top of second purifying area is equipped with inlet valve.
Preferably, the width of a part of first purifying area adjacent with the air inlet area is than first purification
The width of the another part in area is narrow.
Preferably, being equipped with the adsorbent of flowing, the adsorbent in first purifying area and second purifying area
Entered in second purifying area by the inlet valve, and is vertically entered into first purifying area by second purifying area
Afterwards, it is drawn off from the outlet valve.
Preferably, the width of first purifying area not less than the flue area and second purifying area width it
With the height of the flue area and second purifying area is 2-7 times of the height of first purifying area.
Preferably, first purifying area and second purifying area are integrally formed, it is equipped in the flue area multiple
Ammonia-spraying grid.
Preferably, side that first purifying area is contacted with the air inlet area and second purifying area respectively with
The flue area and the side of outlet area contact are equipped with multiple shutter boards being obliquely installed, and flue gas can pass through the blinds
Plate is net into first purifying area, by the flue area into second purifying area and by described second by the air inlet area
Change area and enters the outlet area.
Preferably, one end that the shutter board is contacted with the side wall of first purifying area and second purifying area is equal
Higher than the other end not contacted with the side wall.
Preferably, the shutter board is set to the top of second purifying area, the two sides of second purifying area are not set
There is the height of the shutter board to account for the 5%-15% of the height of second purifying area.
Beneficial effects of the present invention:
Moving bed flue gas purification device of the invention combines the absorbing process of cross-flow and adverse current, existing counter-current process flue gas
The advantage for contacting abundant advantage with purifying area, and having cross-flow technique purifying area internal resistance small；Moving bed flue gas purification device is first
Desulfurization, then to spray ammonia out of stock, it can reach higher purification efficiency, and can greatly reduce the sulphur ammonium mineralization in device；Device
It is small compared with pure counter-current process flue gas resistance, structure is simple, operating cost is low；Purer cross-flow technique flue gas contacts sufficiently with active carbon,
Kinetics performance is good, is remarkably improved purification efficiency；Installation area is small, adsorbent operation is unobstructed, wear rate is small, sharp
It is very high with rate, there is considerable economic benefit.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of moving bed flue gas purification device provided by the invention；
Fig. 2 is the structural schematic diagram of shutter board in Fig. 1.
In figure:
Arrow is flow of flue gas direction；
1, air inlet area；
21, the first purifying area；22, the second purifying area；23, porous plate；
3, flue area；31, ammonia-spraying grid；
4, outlet area；
51, inlet valve；52, outlet valve；
6, shutter board.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of moving bed flue gas purification device provided by the invention, the moving bed flue gas purification device include
Tower body, tower body is interior to be equipped with the air inlet area 1 set gradually along flow of flue gas direction, the first purifying area 21, the purification of flue area 3, second
Area 22 and outlet area 4, flue gas can enter the first purifying area 21 by air inlet area 1 in a counter-current fashion, and can be in a manner of cross-flow
Second purifying area 22 is entered by flue area 3.Moving bed flue gas purification device of the invention combines the absorption work of cross-flow and adverse current
Skill, existing counter-current process flue gas contacts abundant advantage with purifying area (i.e. the first purifying area 21 and the second purifying area 22), and has
The small advantage of cross-flow technique purifying area internal resistance；Device is small compared with pure counter-current process flue gas resistance, structure is simple, operating cost is low；
Purer cross-flow technique flue gas contacts sufficiently with active carbon, and kinetics performance is good, is remarkably improved purification efficiency；Plant area
Area is small, adsorbent operation is unobstructed, wear rate is small, utilization rate is very high, has considerable economic benefit.
Specifically, air inlet area 1 is arranged in parallel with the first purifying area 21, and flue area 3, the second purifying area 22 and outlet area 4 are flat
Row setting, and flue area 3 and the second purifying area 22 are located at the surface of the first purifying area 21, outlet area 4 is being located at air inlet area 1 just
Top so can just enable flue gas enter the first purifying area 21 by air inlet area 1 in a counter-current fashion, and can be in a manner of cross-flow
Second purifying area 22 is entered by flue area 3.
Further, the first purifying area 21 is contacted with air inlet area 1 side and the second purifying area 22 respectively with flue area 3
The side contacted with outlet area 4 is equipped with multiple shutter boards 6 (structure can be found in Fig. 2) being obliquely installed, and flue gas can pass through blinds
Gap between plate 6 enters the first purifying area 21 by air inlet area 1, enters the second purifying area 22 by flue area 3 and by the second purification
Area 22 enters outlet area 4, i.e., by being provided with multiple be obliquely installed in the side wall of the first purifying area 21 and the second purifying area 22
Shutter board 6 aloows flue gas to enter the first purifying area 21 by air inlet area 1 in a counter-current fashion, and can be in a manner of cross-flow
Second purifying area 22 is entered by flue area 3.Relatively traditional flue gas and adsorbent is improved to the present invention by the point contact of orifice plate
The face contact by blinds board group 6, considerably increase the contact area of flue gas and adsorbent, and also reduce the resistance of tower body
Power.
Further, one end that shutter board 6 is contacted with the side wall of the first purifying area 21 and the second purifying area 22 is above
The other end not contacted with side wall.Referring to Fig. 2, after flue gas enters the first purifying area 21 by air inlet area 1, due to shutter board
6 structure type, so that flue gas inclined is downwardly into the first purifying area 21, and since hot fume rises and the principle of pressure difference,
Flue gas into the first purifying area 21 can flow to counter current contacting with respect to adsorbent in the first purifying area 21；When flue gas is net by first
Change after area 21 is discharged and enter in flue area 3, and be discharged into from flue area 3 to the second purifying area 22, similarly enters the second purifying area
22 flue gas is to enter obliquely, but due to the narrower width of the second purifying area 22, and the second purifying area 22 and outlet area 4 are adjacent
The structure type of the shutter board 6 connect, so that the discharge of the flow direction of flue gas again obliquely, the so flue gas in the second purifying area 22
Entirety shows bottom horizontal flow sheet, i.e., is cross-flow contact with respect to the flow direction of adsorbent in the second purifying area 22.Wherein, adsorbent is grain
Shape catalyst, for example, can be in active carbon, activated coke, active carbocoal or semi-coke any one or at least two combination,
Preferably active carbon.
Specifically, it being equipped with porous plate 23 in the first purifying area 21, the first purifying area 21 is divided into two parts by porous plate 23, and
The bottom of each section is equipped with outlet valve 52, and the top of the second purifying area 22 is equipped with inlet valve 51.Inlet valve 51 and outlet valve
The 52 preferably double-deck nitrogen-sealed valves, adsorbent is entered in the second purifying area 22 by inlet valve 51, and is erected by the second purifying area 22
After directly entering in the first purifying area 21, drawn off from outlet valve 52.Two parts that first purifying area 21 is divided by porous plate 23,
The width of a part of the first adjacent purifying area 21 is narrower than the width of another part of the first purifying area 21 with air inlet area 1, excellent
It is selected as 0.2-0.8 times, so may make the flow velocity of the adsorbent in narrower part fast, it is small in size, and take the lead in contacting with flue gas, i.e.,
The time that adsorbent in the part reaches saturation is short, the adsorbent that two parts can be selected to be discharged according to actual needs.
Specifically, the width of the first purifying area 21 is not less than the sum of the width in flue area 3 and the second purifying area 22, so may be used
Guarantee flue gas in the removal efficiency of the first purifying area 21 and can prevent flue gas string from leaking to other openings, i.e., is not only along cigarette
Road area 3 is discharged.Shutter board 6 is set to the top of the second purifying area 22, and specifically, the two sides of the second purifying area 22 are not provided with shutter board
6 height accounts for the 5%-15% of the height of the second purifying area 22.It should be noted that flue gas passes through 21 row of the first purifying area
Path out may be flue area 3, it is also possible to the second purifying area 22, but since the lower part of the second purifying area 22 is not provided with blinds
Plate 6, and the adsorbent that the second purifying area 22 falls is greater than the lift that flue gas rises to the resistance of flue gas, so that flue gas passes through
The path of first purifying area 21 discharge is only possible flue area 3, and cannot enter to obtain behind the inside of the second purifying area 22 again
It discharges.The height of flue area 3 and the second purifying area 22 is 2-7 times of the height of the first purifying area 21, so may make cigarette
Gas is more excellent by the cross flow effects that flue area 3 enters the second purifying area 22, if not in this range, good mistake cannot occur
Flow effect.
Specifically, the first purifying area 21 and the second purifying area 22 are integrally formed, and multiple ammonia-spraying grids are equipped in flue area 3
31, flue gas first by the first purifying area 21 carry out desulfurization, then by flue area ammonia-spraying grid 31 carry out denitration, it can reach compared with
High purification efficiency, and can greatly reduce the sulphur ammonium mineralization of tower body.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For the ordinary skill user of fields, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of moving bed flue gas purification device, including tower body, which is characterized in that be equipped in the tower body along flow of flue gas direction
The air inlet area (1) that sets gradually, the first purifying area (21), flue area (3), the second purifying area (22) and outlet area (4), flue gas energy
It is enough that first purifying area (21) is entered by the air inlet area (1) in a counter-current fashion, and can be in a manner of cross-flow by the cigarette
Road area (3) enters second purifying area (22).
2. moving bed flue gas purification device according to claim 1, which is characterized in that the air inlet area (1) and described the
One purifying area (21) is arranged in parallel, and the flue area (3), second purifying area (22) and the outlet area (4) are arranged in parallel,
And the flue area (3) and second purifying area (22) are located at the surface of first purifying area (21), the outlet area
(4) it is located at the surface of the air inlet area (1).
3. moving bed flue gas purification device according to claim 1, which is characterized in that set in first purifying area (21)
Have porous plate (23), first purifying area (21) is divided into two parts by the porous plate (23), and the bottom of each section is equal
Equipped with outlet valve (52), the top of second purifying area (22) is equipped with inlet valve (51).
4. moving bed flue gas purification device according to claim 3, which is characterized in that with the air inlet area (1) adjoining
The width of a part of first purifying area (21) is narrower than the width of another part of first purifying area (21).
5. moving bed flue gas purification device according to claim 3, which is characterized in that first purifying area (21) and institute
The adsorbent that flowing is equipped in the second purifying area (22) is stated, the adsorbent enters second purification by the inlet valve (51)
In area (22), and after being vertically entered into first purifying area (21) by second purifying area (22), from the outlet valve
(52) it draws off.
6. moving bed flue gas purification device according to claim 1, which is characterized in that the width of first purifying area (21)
Degree is not less than the sum of the width of the flue area (3) and second purifying area (22), and the flue area (3) and described second is only
The height of change area (22) is 2-7 times of the height of first purifying area (21).
7. moving bed flue gas purification device according to claim 1, which is characterized in that first purifying area (21) and institute
The second purifying area (22) integrated molding is stated, is equipped with multiple ammonia-spraying grids (31) in the flue area (3).
8. moving bed flue gas purification device according to claim 1, which is characterized in that first purifying area (21) and institute
State air inlet area (1) contact side and second purifying area (22) respectively with the flue area (3) and the outlet area (4)
The side of contact is equipped with multiple shutter boards (6) being obliquely installed, and flue gas can be by the shutter board (6) by the air inlet area
(1) net into first purifying area (21), by the flue area (3) into second purifying area (22) and by described second
Change area (22) and enters the outlet area (4).
9. moving bed flue gas purification device according to claim 8, which is characterized in that the shutter board (6) and described the
The side wall of one purifying area (21) and second purifying area (22) contact one end be above do not contacted with the side wall it is another
End.
10. moving bed flue gas purification device according to claim 8, which is characterized in that the shutter board (6) is set to described
The top of second purifying area (22), the height that the two sides of second purifying area (22) are not provided with the shutter board (6) account for described
The 5%-15% of the height of second purifying area (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536950.0A CN109482050B (en) | 2018-12-14 | 2018-12-14 | Moving bed flue gas purification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811536950.0A CN109482050B (en) | 2018-12-14 | 2018-12-14 | Moving bed flue gas purification device |
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| CN109482050A true CN109482050A (en) | 2019-03-19 |
| CN109482050B CN109482050B (en) | 2020-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252104A (en) * | 2019-07-16 | 2019-09-20 | 上海克硫环保科技股份有限公司 | A kind of flue gas processing device |
| CN110404401A (en) * | 2019-07-12 | 2019-11-05 | 北京科技大学 | It is a kind of using flexible material as the moving-bed type catalyst reaction device of carrier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404401A (en) * | 2019-07-12 | 2019-11-05 | 北京科技大学 | It is a kind of using flexible material as the moving-bed type catalyst reaction device of carrier |
| CN110252104A (en) * | 2019-07-16 | 2019-09-20 | 上海克硫环保科技股份有限公司 | A kind of flue gas processing device |
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| CN109482050B (en) | 2020-12-01 |
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