CN220176473U - Natural rubber factory production waste gas treatment device - Google Patents
Natural rubber factory production waste gas treatment device Download PDFInfo
- Publication number
- CN220176473U CN220176473U CN202221259303.1U CN202221259303U CN220176473U CN 220176473 U CN220176473 U CN 220176473U CN 202221259303 U CN202221259303 U CN 202221259303U CN 220176473 U CN220176473 U CN 220176473U
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- CN
- China
- Prior art keywords
- tower
- absorption tower
- condensing
- waste gas
- air inlet
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- 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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Links
- 244000043261 Hevea brasiliensis Species 0.000 title claims abstract description 12
- 229920003052 natural elastomer Polymers 0.000 title claims description 8
- 229920001194 natural rubber Polymers 0.000 title claims description 8
- 239000002912 waste gas Substances 0.000 title abstract description 23
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims 1
- 238000010090 natural rubber production Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical group S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 4
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000004354 sulfur functional group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a production waste gas treatment device of a natural rubber plant, which comprises a condensing tower, a first-stage absorption tower and a second-stage absorption tower, wherein an air inlet of the condensing tower is communicated with a waste gas pipeline, a fan is arranged in the middle of the condensing tower, an air outlet at the top of the condensing tower is communicated with the air inlet of the first-stage absorption tower, an air outlet at the top of the first-stage absorption tower is communicated with the air inlet of the second-stage absorption tower, a heat exchanger is arranged on a circulating pipeline of the condensing tower, a dosing tank is arranged on the second-stage absorption tower, and an overflow port of the second-stage absorption tower is communicated with the first-stage absorption tower. The utility model has simple structure, low cost and good operation effect, and fills the blank of the waste gas treatment equipment in the natural rubber production.
Description
Technical Field
The utility model belongs to the technical field of air pollution control, and particularly relates to a device for treating production waste gas of a natural rubber plant.
Background
In the production of natural rubber, a large amount of exhaust gas, particularly exhaust gas generated during drying, is generated, and the exhaust gas contains a large amount of organic matters (Voc) whose main component is carbon disulfide (CS) 2 ) Dimethyl sulfide (C) 2 H 6 S), methyl mercaptan (CH 4 S), trimethylamine (C) 3 H 9 N), olefins and lipids, etc.
At present, such exhaust gases have not been treated effectively. In terms of the treatment technology of natural rubber production waste gas, several treatment processes are often recommended:
ozone oxidation + alkali absorption method (wet photoperiod plasma + alkali absorption method), this method utilizes the photoperiod (catalysis) +plasma to decompose the organic matter in the oxidation system of waste gas, then absorbs the organic acid after oxidation with alkali, this method has a high demand on equipment, and the subtraction absorption organic acid still needs to be further discussed. The production investment and the running cost for treating the waste gas with large gas quantity are high.
It has been proposed to treat natural rubber process exhaust gas by coo chemical oxidation, treat exhaust gas by multistage chemical catalytic oxidation absorption, oxidize organic matters into carbon dioxide and water, but the method is not suitable for treating special organic matters such as sulfur groups in rubber process exhaust gas effectively.
The activated carbon adsorption method is widely applied to the treatment of the waste gas containing Voc, but the investment and the operation cost of the method are high. Moreover, it is unsuitable in treating natural rubber process off-gas (especially dry off-gas).
Therefore, the development of a treatment device which is less in investment and low in operation cost and is more suitable for the waste gas generated in the production of the natural rubber is necessary for the clean production operation of the natural rubber production.
Disclosure of Invention
The utility model aims to provide a device for treating production waste gas of a natural rubber plant, which fills the blank that the existing natural rubber production waste gas does not have proper treatment equipment.
The technical scheme of the utility model is realized as follows: the utility model provides a natural rubber factory produces exhaust treatment device, includes condensing tower, one-level absorption tower and second grade absorption tower, the air inlet and the exhaust gas pipeline intercommunication of condensing tower are equipped with the fan in the middle, the top gas outlet of condensing tower with the air inlet intercommunication of one-level absorption tower, the top gas outlet of one-level absorption tower with the air inlet intercommunication of second grade absorption tower, be equipped with the heat exchanger on the circulation pipeline of condensing tower, the second grade absorption tower is equipped with the dosing tank, the overflow mouth of second grade absorption tower with one-level absorption tower intercommunication.
Further, the condensing tower also comprises a recycling water tank which is communicated with the overflow port of the condensing tower.
Further, the system also comprises a waste liquid tank which is communicated with the overflow port of the primary absorption tower.
Preferably, the condensing mode of the condensing tower is direct condensation, and the tower type is a packed tower.
Preferably, the mass transfer mode of the primary absorption tower and the secondary absorption tower is direct absorption, and the tower type is a packed tower.
The utility model has simple structure, low cost and good operation effect, and fills the blank of the waste gas treatment equipment in the natural rubber production.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: the device comprises a fan, a 2-recycling water tank, a 3-condensing tower, an air inlet of the 31-condensing tower, an overflow port of the 32-condensing tower, a 4-heat exchanger, a 5-waste liquid tank, a 6-primary absorption tower, an air inlet of the 61-primary absorption tower, an overflow port of the 62-primary absorption tower, a 7-secondary absorption tower, an air inlet of the 71-secondary absorption tower, an overflow port of the 72-secondary absorption tower and an 8-dosing tank.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The device for treating the waste gas produced by the natural rubber plant shown in fig. 1 comprises a condensing tower 3, a recycling water tank 2, a first-stage absorption tower 6, a waste liquid tank 5 and a second-stage absorption tower 7, wherein the condensing tower 3 is in the prior art, the condensing mode is direct condensation, and the tower type is a packed tower; the primary absorption tower 6 and the secondary absorption tower 7 are both in the prior art, the mass transfer mode is direct absorption, and the tower type is a packed tower; the air inlet 31 of the condensing tower 3 is communicated with an exhaust gas pipeline, the middle is provided with a fan 1, the top air outlet of the condensing tower 3 is communicated with the air inlet 61 of the primary absorption tower 6 through a pipeline, the top air outlet of the primary absorption tower 6 is communicated with the air inlet 71 of the secondary absorption tower 7, the circulating pipeline of the condensing tower 3 is provided with a heat exchanger 4, the secondary absorption tower 7 is provided with a dosing tank 8, the overflow port 72 of the secondary absorption tower 7 is communicated with the primary absorption tower 6, the recycling water tank 2 is communicated with the overflow port 32 of the condensing tower 3, and the waste liquid tank 5 is communicated with the overflow port 62 of the primary absorption tower 6.
Working principle and working process: the waste gas enters a condensing tower 3 through a condensing tower air inlet 31 under the guidance of a fan 1, cooling water in the condensing tower 3 cools the waste gas to 30-40 ℃, cooling water is cooled through a heat exchanger 4 in the circulating process, most vapor in the waste gas is condensed into water, and the condensed water flows into a recycling water tank 2 through a condensing tower overflow port 32 to serve as rubber washing water; the condensed waste gas enters a first-stage absorption tower 6 through a first-stage absorption tower air inlet 61, part of Voc in the waste gas is absorbed through a first-stage circulating liquid added with an absorbent, and the absorbed first-stage circulating liquid is discharged into an absorption waste liquid tank 5 through a first-stage absorption tower overflow port 62 and is sent to a waste water treatment station for treatment; the waste gas from the first-stage absorption tower 6 enters the second-stage absorption tower 7 through the second-stage absorption tower air inlet 71, and residual Voc in the waste gas is absorbed through the second-stage circulating liquid added with the absorbent, so that the waste gas meets the emission requirement; the absorbent is added into the secondary circulation liquid through the dosing tank 8, and the secondary circulation liquid partially flows into the primary absorption tower 6 through the overflow port 72 of the secondary absorption tower, so that the concentration of the absorbent in the primary circulation liquid is adjusted.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a natural rubber factory produces exhaust treatment device, its characterized in that, including condensing tower (3), one-level absorption tower (6) and second grade absorption tower (7), air inlet (31) and exhaust duct intercommunication of condensing tower (3) are equipped with fan (1) in the middle, the top gas outlet of condensing tower (3) with air inlet (61) intercommunication of one-level absorption tower (6), the top gas outlet of one-level absorption tower (6) with air inlet (71) intercommunication of second grade absorption tower (7), be equipped with heat exchanger (4) on the circulation pipeline of condensing tower (3), second grade absorption tower (7) are equipped with medicine adding groove (8), overflow mouth (72) of second grade absorption tower (7) with one-level absorption tower (6) intercommunication.
2. The treatment device according to claim 1, further comprising a reuse water tank (2), which reuse water tank (2) communicates with an overflow port (32) of the condensing tower (3).
3. The treatment apparatus according to claim 1, further comprising a waste liquid tank (5), the waste liquid tank (5) being in communication with an overflow port (62) of the primary absorption tower (6).
4. A treatment device according to any one of claims 1 to 3, characterized in that the condensing means of the condensing tower (3) is direct condensation, the tower type being a packed tower.
5. A treatment plant according to any one of claims 1 to 3, characterized in that the mass transfer means of the primary absorption column (6) and the secondary absorption column (7) is direct absorption, the column type being a packed column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221259303.1U CN220176473U (en) | 2022-05-20 | 2022-05-20 | Natural rubber factory production waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221259303.1U CN220176473U (en) | 2022-05-20 | 2022-05-20 | Natural rubber factory production waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220176473U true CN220176473U (en) | 2023-12-15 |
Family
ID=89115982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221259303.1U Active CN220176473U (en) | 2022-05-20 | 2022-05-20 | Natural rubber factory production waste gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220176473U (en) |
-
2022
- 2022-05-20 CN CN202221259303.1U patent/CN220176473U/en active Active
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