CN219463010U - Flue gas absorbing and purifying device - Google Patents
Flue gas absorbing and purifying device Download PDFInfo
- Publication number
- CN219463010U CN219463010U CN202320511885.6U CN202320511885U CN219463010U CN 219463010 U CN219463010 U CN 219463010U CN 202320511885 U CN202320511885 U CN 202320511885U CN 219463010 U CN219463010 U CN 219463010U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- absorption tower
- spraying
- pipe
- purifying device
- 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.)
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000003546 flue gas Substances 0.000 title claims abstract description 47
- 238000010521 absorption reaction Methods 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000012670 alkaline solution Substances 0.000 claims abstract description 32
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The application relates to a flue gas absorbing and purifying device, comprising: the absorption tower is equipped with the intake pipe that is used for flue gas to get into in the absorption tower and holds the liquid case, and absorption tower top is equipped with the outlet duct, and from the top down interval is equipped with a plurality of backup pads in the absorption tower, has a plurality of bleeder vents that are used for the flue gas to pass through in the backup pad, and every backup pad upper end is equipped with the packing layer, and every packing layer top is equipped with spraying system, is located the top spraying system top from the bottom up interval and is equipped with whirl board defroster and wire mesh defroster, holds liquid incasement portion splendid attire and has alkaline solution, holds the liquid case and is connected with a plurality of spraying system through the transfer line, is equipped with the transfer pump on the transfer line. The acid flue gas can be effectively collected and treated, and the environmental protection emission standard is achieved.
Description
Technical Field
The utility model relates to the technical field of environmental protection equipment, in particular to a flue gas absorbing and purifying device.
Background
Acid mist smoke is often generated in wet or pyrometallurgy of a nonferrous smelting plant or in the production process of chemical industry, a large amount of acid smoke containing high-concentration nitrogen oxides or SO2, HCl and the like is discharged in the reaction process, the physical health of workers is damaged, the atmospheric environment is polluted, and the absorption and purification treatment of the acid smoke is a new technology developed in recent years.
There are many methods for treating high-concentration acid flue gas, in which an alkali liquor absorption method, a urea reduction conversion method and the like are processes for effectively treating the acid flue gas in various domestic and foreign nonferrous smelting industries. The most main equipment commonly used for absorbing acid flue gas is a packed absorption tower, and according to the prior patent application number CN201521000583.4, waste gas directly enters the absorption tower from the lower part, is discharged after passing through a primary spray and an upper foam catcher, and is practically proved that the waste gas cannot be effectively dispersed after entering from the lower part, and the waste gas short circuit phenomenon exists and cannot be fully absorbed by an absorbent; in addition, through the first-level absorption, the phenomenon of incomplete absorption exists, and the current environmental protection emission requirement can not be met.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a flue gas absorbing and purifying device which can effectively absorb and treat acidic flue gas to reach the environmental protection emission standard.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a flue gas absorbing and purifying device, comprising: the absorption tower is provided with an air inlet pipe for flue gas to enter the absorption tower, the top of the absorption tower is provided with an air outlet pipe, a plurality of support plates are arranged in the absorption tower from top to bottom at intervals, a plurality of air holes for the flue gas to pass through are formed in the support plates, a filler layer is arranged at the upper end of each support plate, a spray system is arranged above each filler layer, and a cyclone plate demister and a wire mesh demister are arranged above the uppermost spray system from bottom to top at intervals;
the liquid storage box is internally provided with alkaline solution, the liquid storage box is connected with a plurality of spraying systems through a liquid conveying pipe, the liquid conveying pipe is provided with a liquid conveying pump, the liquid conveying pump is used for conveying the alkaline solution in the liquid storage box to the plurality of spraying systems through the liquid conveying pipe, and the spraying systems are used for spraying the alkaline solution.
Preferably, the thickness of the packing layer is 500-800 mm, and the packing layer is a multi-surface hollow sphere.
Preferably, the support plates are three or four.
Preferably, the spraying system comprises a spraying pipe communicated with the infusion pipe, the spraying pipe is spirally coiled from outside to inside, and a plurality of spraying heads are arranged at the lower end of the spraying pipe.
Preferably, the spray header is an atomization spray head.
Preferably, a plurality of spraying observation holes are formed in the absorption tower, and demister observation holes are further formed in the absorption tower.
Preferably, the absorption tower is provided with a manhole and a drain pipe near the lower end thereof.
The beneficial effects of this application are: 1. the application adopts the multistage spraying system to spray alkaline solution to absorb and treat the acid flue gas, so that the acid gas can be effectively absorbed and treated after entering the absorption tower, and the content of harmful gas in the treated flue gas can be reduced to below 50mg/m < 3 >.
2. The two-stage demisting system of the top cyclone plate demister and the top wire mesh demister is adopted, so that the treated flue gas and alkaline solution can be effectively separated, and the separated alkaline solution falls into the absorption tower again, so that the flue gas can be continuously absorbed and treated, the usage amount of the alkaline solution is reduced, and the alkaline solution is prevented from being taken away by gas, so that the alkaline solution is prevented from being lost.
3. The utility model provides a shower is the spiral disc from outside to inside and coils, and the shower lower extreme is equipped with a plurality of shower heads, greatly increased spray scope to the alkaline solution of being convenient for spray fully absorbs the processing to acid flue gas.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a top view of the shower pipe of the present utility model.
The marks in the figure: 1. the device comprises a bottom plate, 2, an absorption tower barrel, 3, a liquid delivery pipe, 4, an air inlet pipe, 5, a supporting plate, 6, a packing layer, 7, a spraying observation hole, 8, a spraying pipe, 801, a spraying head, 9, a manhole, 10, a cyclone plate demister, 11, a wire mesh demister, 12, a demister observation hole, 13, a conical sealing head, 14, an air outlet pipe, 15, a liquid delivery pump, 16, a liquid storage tank, 17 and a drain pipe.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-3, an embodiment of the present utility model provides a flue gas absorbing and purifying device, including: the absorption tower and the liquid storage box 16, the absorption tower is provided with an air inlet pipe 4 for flue gas to enter the absorption tower, the top of the absorption tower is provided with an air outlet pipe 14, the absorption tower comprises a bottom plate 1, an absorption tower cylinder 2 and a conical sealing head 13, the absorption tower cylinder 2 is welded at the upper end of the bottom plate 1, one end of the air inlet pipe 4 stretches into the absorption tower cylinder 2, the other end is positioned at the outer side of the absorption tower cylinder 2, the air inlet pipe 4 is welded with the absorption tower cylinder 2, the conical sealing head 130 is welded at the upper part of the absorption tower cylinder 2, the air outlet pipe 14 is welded at the top of the conical sealing head 20 of the absorption tower and is used for discharging the flue gas after absorption and purification, a plurality of support plates 5 are arranged in the absorption tower from top to bottom at intervals, a plurality of air holes for the flue gas to pass through are formed in the support plates 5, a filler layer 6 is arranged at the upper end of each support plate 5, a spray system is arranged above each filler layer 6, the cyclone plate demister 10 and the wire mesh demister 11 are arranged above the uppermost spray system at intervals from bottom to top, the thickness of the cyclone plate demister 10 is 180-200mm, the thickness of the wire mesh demister 11 is 180-200mm, alkaline solution is contained in the liquid storage tank 16, the liquid storage tank 16 is made of stainless steel, the liquid storage tank 16 is connected with a plurality of spray systems through a liquid conveying pipe 3, the liquid conveying pipe 3 is provided with a liquid conveying pump 15, the liquid conveying pump 15 is arranged at the upper end of the liquid storage tank 16, the liquid storage tank 16 is provided with a liquid conveying opening, the liquid conveying pump 15 is used for conveying the alkaline solution in the liquid storage tank 16 to a plurality of spray systems through the liquid conveying pipe 3, the spray systems are used for spraying the alkaline solution, the two-stage demisting systems of the top cyclone plate demister 10 and the top wire mesh demister 11 can effectively separate treated gas from the alkaline solution, the separated alkaline solution falls into an absorption tower again, therefore, the acidic flue gas can be continuously absorbed, the usage amount of the alkaline solution is reduced, and the alkaline solution is prevented from being taken away by gas, so that the alkaline solution is prevented from being lost.
The utility model provides a spray pipe, including packing layer 6, spray system, spray pipe 8 lower extreme, spray pipe 8 and spray header 801, spray header 801 is the atomizer, spray pipe 8 of this application is from outside-in spiral disk-shaped coiling, and spray pipe lower extreme is equipped with a plurality of sprayers 801, greatly increased spray scope to the alkaline solution that is convenient for spray fully absorbs the processing to the flue gas, and the vaporific alkaline solution part of spray header 801 blowout falls into packing layer 6 and makes the packing layer 6 in be equipped with alkaline solution, and packing layer 6 is arranged in making the flue gas lead to slowly rise, slows down flue gas rising speed, has abundant time and the alkaline solution neutralization reaction in the packing layer 6, thereby improves the absorption effect.
Specifically, as shown in fig. 1, the absorption tower is provided with a plurality of spray observation holes 7, the spray observation holes 7 are used for observing spray conditions, the absorption tower is also provided with a demister observation hole 12, the demister observation hole 12 is used for observing demisting conditions and overhauling demisters, the absorption tower is provided with an overhauling hole 9 and a blow-off pipe 17 close to the lower end of the absorption tower, and the overhauling hole 9 is welded on the side wall of the lower part of the absorption tower barrel 2 and is used for overhauling and cleaning the absorption tower; the drain pipe 17 is welded on the side wall of the lower part of the absorption tower barrel 2 and is used for discharging the scrapped liquid in the absorption tower and draining the sewage.
The working principle of the application is as follows: acidic flue gas is pumped into the absorption tower through the air inlet pipe 4, the flue gas passes through the supporting plate 5 of each layer and the packing layer 6 of each layer, then the flue gas is neutralized and reacted with vaporific alkaline solution sprayed out by the spraying system of each layer, the acidic harmful gas in the flue gas is effectively absorbed through the multi-layer spraying system, the reacted flue gas sequentially enters the cyclone plate demister 10 and the top wire mesh demister 11, the treated flue gas and the alkaline solution can be effectively separated through the two-stage demisting system, the separated alkaline solution falls into the absorption tower again, so that the flue gas can be continuously absorbed and treated, the usage amount of the alkaline solution is reduced, the alkaline solution is prevented from being taken away by gas, the alkaline solution is prevented from being lost, the separated flue gas reaches the environmental protection requirement and is discharged, and the flue gas can be effectively absorbed and treated by the acidic flue gas and reaches the environmental protection emission standard through the air outlet pipe 14.
Of course, the utility model is not limited to the embodiments described above, but several other embodiments based on the design concept of the utility model are provided below.
For example, in other embodiments, the support plate 5, the packing layer 6 and the shower system are all four, unlike the embodiments described above.
For example, in other embodiments, unlike the above-described embodiments, the infusion tube 3 is provided with a one-way valve and a flow control valve, and the flow of the shower tube 8 can be adjusted according to the amount of smoke through the flow control valve, so that the adjustment is convenient and the flexibility is high.
It should be noted that the above embodiments are only for illustrating the present utility model, but the present utility model is not limited to the above embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model falls within the protection scope of the present utility model.
Claims (7)
1. A smoke absorbing and purifying device, comprising:
the flue gas absorption device comprises an absorption tower, a cyclone plate demister and a wire mesh demister, wherein the absorption tower is provided with an air inlet pipe (4) for enabling flue gas to enter the absorption tower, an air outlet pipe (14) is arranged at the top of the absorption tower, a plurality of support plates (5) are arranged in the absorption tower from top to bottom at intervals, a plurality of air holes for enabling the flue gas to pass through are formed in the support plates (5), a filler layer (6) is arranged at the upper end of each support plate (5), a spraying system is arranged above each filler layer (6), and a cyclone plate demister (10) and a wire mesh demister (11) are arranged above the uppermost spraying system from bottom to top at intervals;
the liquid storage box (16) is internally provided with alkaline solution, the liquid storage box (16) is connected with a plurality of spraying systems through a liquid conveying pipe (3), the liquid conveying pipe (3) is provided with a liquid conveying pump (15), the liquid conveying pump (15) is used for conveying the alkaline solution in the liquid storage box (16) to the plurality of spraying systems through the liquid conveying pipe (3), and the spraying systems are used for spraying the alkaline solution.
2. A flue gas absorbing and purifying device according to claim 1, wherein: the thickness of the packing layer (6) is 500-800 mm, and the packing layer (6) is a multi-surface hollow sphere.
3. A flue gas absorbing and purifying device according to claim 1, wherein: the number of the supporting plates (5) is three or four.
4. A flue gas absorbing and purifying apparatus according to claim 2 or 3, wherein: the spraying system comprises a spraying pipe (8) communicated with the infusion pipe (3), the spraying pipe (8) is spirally coiled from outside to inside, and a plurality of spraying heads (801) are arranged at the lower end of the spraying pipe (8).
5. The flue gas absorbing and purifying device according to claim 4, wherein: the spray header (801) is an atomization spray head.
6. A flue gas absorbing and purifying device according to claim 1, wherein: a plurality of spraying observation holes (7) are formed in the absorption tower, and demister observation holes (12) are also formed in the absorption tower.
7. A flue gas absorbing and purifying device according to claim 1, wherein: and the absorption tower is provided with a manhole (9) and a blow-down pipe (17) near the lower end thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511885.6U CN219463010U (en) | 2023-03-16 | 2023-03-16 | Flue gas absorbing and purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320511885.6U CN219463010U (en) | 2023-03-16 | 2023-03-16 | Flue gas absorbing and purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219463010U true CN219463010U (en) | 2023-08-04 |
Family
ID=87462245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320511885.6U Active CN219463010U (en) | 2023-03-16 | 2023-03-16 | Flue gas absorbing and purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219463010U (en) |
-
2023
- 2023-03-16 CN CN202320511885.6U patent/CN219463010U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240511 Address after: 471312 Group 3, Yanggou Village, Pengbo Town, Yichuan County, Luoyang City, Henan Province Patentee after: Wei Yingwei Country or region after: China Address before: 471000 f6-501, Yanhuang science and Technology Park, No. 333, Kaiyuan Avenue, Luolong District, Luoyang City, Henan Province Patentee before: LUOYANG SANXUAN JINYAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Country or region before: China |