CN215996181U - Methyl chloride recovery processing device in organic tin production - Google Patents
Methyl chloride recovery processing device in organic tin production Download PDFInfo
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- CN215996181U CN215996181U CN202121368022.5U CN202121368022U CN215996181U CN 215996181 U CN215996181 U CN 215996181U CN 202121368022 U CN202121368022 U CN 202121368022U CN 215996181 U CN215996181 U CN 215996181U
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- absorption tower
- water absorption
- methyl chloride
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Abstract
The utility model discloses a chloromethane recovery processing device in organotin production. The device comprises a first water absorption tower, a second water absorption tower, an alkali absorption tower, an air compressor, a cooling recovery device, a drying filter and a storage tank which are sequentially communicated through a pipeline; first water absorption tower is used for the heat transfer with plate heat exchanger intercommunication, is located to be equipped with first draught fan on the pipeline between first water absorption tower and the second water absorption tower, is located to be equipped with the second draught fan on the pipeline between second water absorption tower and the alkali absorption tower, and the air compressor machine compresses tail gas, and cooling recovery unit cools down the temperature to the methyl chloride in the tail gas and retrieves, and dry filter carries out drying and filtering to the methyl chloride that can retrieve. After water absorption and alkali absorption, the chloromethane is recovered after compression, freezing and cooling by an air compressor, drying and adsorption, and the method has the advantages of simple structure, low equipment investment fund and the like; easy operation, recycle of waste gas and zero emission standard.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a chloromethane recovery processing device in organotin production.
Background
In the process of producing organic tin, a large amount of tail gas containing methyl chloride is generated and directly discharged without being recycled, and the loss of the methyl chloride accounts for 3-6 wt% of the normal consumption of the organic tin production. Therefore, the chloromethane in the recovered tail gas can reduce the emission of pollutants, directly reduce the consumption level of raw materials of organic tin, and have considerable economic benefit and environmental protection.
Therefore, how to efficiently recover the methyl chloride in the tail gas, reduce the raw material consumption, the energy consumption, the operation and construction costs and reduce the pollutant emission is a problem which needs to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a methyl chloride recovery processing device in organotin production, which has simple structure, less equipment investment and capital and is easy to operate, aiming at the defects in the prior art.
The utility model relates to a chloromethane recovery processing device in organotin production, which comprises a first water absorption tower, a second water absorption tower, an alkali absorption tower, an air compressor, a cooling recovery device, a drying filter and a storage tank which are sequentially communicated through pipelines; first water absorption tower is used for the heat transfer with plate heat exchanger intercommunication, is located be equipped with first draught fan on the pipeline between first water absorption tower and the second water absorption tower, be located be equipped with the second draught fan on the pipeline between second water absorption tower and the alkali absorption tower, the air compressor machine compresses tail gas, cooling recovery unit cools down the recovery to the methyl chloride in the tail gas, dry filter carries out drying filter to the methyl chloride that can retrieve.
Further, the storage tank is an interlayer tank body, a water inlet and a water outlet which are communicated with an interlayer of the storage tank are formed in the outer wall of the storage tank, and a freezing water source is communicated with the water inlet.
Furthermore, a condensing coil is arranged outside the storage tank.
Furthermore, an air pump is arranged between the air compressor and the cooling recovery device, an air inlet of the air pump is communicated with an air outlet of the air compressor, and an air outlet of the air pump is communicated with an air inlet of the cooling recovery device.
Furthermore, a liquid pump is arranged between the cooling recovery device and the drying filter, a liquid inlet of the liquid pump is communicated with a liquid outlet of the cooling recovery device, and a liquid outlet of the liquid pump is communicated with a liquid inlet of the drying filter.
Furthermore, the cooling recovery device comprises a recovery tank and a refrigerator used for cooling the interior of the recovery tank.
After water absorption and alkali absorption, the chloromethane is recovered after compression, freezing and cooling by an air compressor, drying and adsorption, and the method has the advantages of simple structure, low equipment investment fund and the like; easy operation, recycle of waste gas and zero emission standard.
Drawings
FIG. 1 is a schematic structural diagram of a methyl chloride recovery processing device in organotin production according to the present invention;
FIG. 2 is a schematic structural view of another embodiment of the storage tank of the present invention.
1. A first water absorption tower; 2. a second water absorption tower; 3. an alkali absorption tower; 4. an air compressor; 5. a cooling recovery device; 51. a recovery tank; 52. a refrigerator; 6. drying the filter; 7. a material storage tank; 71. a water inlet; 72. a water outlet; 73. a condenser coil; 8. a plate heat exchanger; 91. a first induced draft fan; 92. a second induced draft fan; 93. an air pump; 94. a liquid pump.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the chloromethane recovery processing device in organotin production of the utility model comprises a first water absorption tower 1, a second water absorption tower 2, an alkali absorption tower 3, an air compressor 4, a cooling recovery device 5, a drying filter 6 and a storage tank 7 which are sequentially communicated through pipelines; first water absorption tower 1 is used for the heat transfer with 8 intercommunications of plate heat exchanger, be located and be equipped with first draught fan 91 on the pipeline between first water absorption tower 1 and the second water absorption tower 2, be located and be equipped with second draught fan 92 on the pipeline between second water absorption tower 2 and the alkali absorption tower 3, air compressor machine 4 compresses tail gas, cooling recovery unit 5 cools down the recovery to the methyl chloride in the tail gas, dry filter 6 carries out dry filtration to the methyl chloride that can retrieve.
After water absorption and alkali absorption, the chloromethane is compressed by the air compressor 4, frozen, cooled, dried and adsorbed, and then recovered, and the method has the advantages of simple structure, low equipment investment fund and the like; easy operation, recycle of waste gas and zero emission standard.
The specific process for treating tail gas of the utility model is as follows: tail gas is absorbed through the cooling of first water absorption tower 1, absorb and fall the methyl tin chloride, start first draught fan 91 and second draught fan 92, open second water absorption tower 2 and one-level alkali absorption tower 3, carry out the remaining acid in the water washing absorption tail gas to tail gas, then open air compressor machine 4 and compress tail gas, cool down through cooling recovery unit 5 and retrieve methyl chloride, remove the water in the methyl chloride in retrieving through drying filter 6 again, utilize the recovery methyl chloride finished product after the storage tank 7 is received the drying at last.
In order to avoid the gasification of chloromethane in the process of receiving and storing at last, the storage tank 7 can be cooled in advance, in a practical mode, the storage tank 7 can be an interlayer tank body, the outer wall of the storage tank 7 is provided with a water inlet 71 and a water outlet 72 which are communicated with an interlayer of the storage tank 7, a freezing water source is communicated with the water inlet 71, and the effect of cooling the inside of the storage tank 7 is achieved through the circulation of the freezing water source.
In another practical implementation, as shown in fig. 2, a condensing coil 73 may be provided outside the storage tank 7.
An air pump 93 can be arranged between the air compressor 4 and the cooling recovery device 5, an air inlet of the air pump 93 is communicated with an air outlet of the air compressor 4, and an air outlet of the air pump 93 is communicated with an air inlet of the cooling recovery device 5.
A liquid pump 94 can be further arranged between the cooling recovery device 5 and the drying filter 6, a liquid inlet of the liquid pump 94 is communicated with a liquid outlet of the cooling recovery device 5, and a liquid outlet of the liquid pump 94 is communicated with a liquid inlet of the drying filter 6.
The structure of the cooling recovery device 5 is various, and is not limited herein, and in the present embodiment, the cooling recovery device may include a recovery tank 51 and a refrigerator 52 for cooling the inside of the recovery tank 51.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the utility model, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the utility model as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. A chloromethane recovery processing device in organic tin production is characterized in that: the device comprises a first water absorption tower (1), a second water absorption tower (2), an alkali absorption tower (3), an air compressor (4), a cooling recovery device (5), a drying filter (6) and a storage tank (7) which are sequentially communicated through pipelines; first water absorption tower (1) is used for the heat transfer with plate heat exchanger (8) intercommunication, is located be equipped with first draught fan (91) on the pipeline between first water absorption tower (1) and second water absorption tower (2), be located be equipped with second draught fan (92) on the pipeline between second water absorption tower (2) and alkali absorption tower (3), air compressor machine (4) compress tail gas, cooling recovery unit (5) are cooled down the recovery to the methyl chloride in the tail gas, dry filter (6) carry out dry filtration to the methyl chloride that can retrieve.
2. The methyl chloride recovery processing device in organotin production as recited in claim 1, characterized in that: the storage tank (7) is an interlayer tank body, the outer wall of the storage tank (7) is provided with a water inlet (71) and a water outlet (72) which are communicated with an interlayer of the storage tank, and a freezing water source is communicated with the water inlet (71).
3. The methyl chloride recovery processing device in organotin production as recited in claim 1, characterized in that: and a condensing coil (73) is arranged outside the material storage tank (7).
4. The methyl chloride recovery processing device in organotin production as recited in claim 1, characterized in that: an air pump (93) is arranged between the air compressor (4) and the cooling recovery device (5), an air inlet of the air pump (93) is communicated with an air outlet of the air compressor (4), and an air outlet of the air pump (93) is communicated with an air inlet of the cooling recovery device (5).
5. The apparatus for recovering and treating methyl chloride in organotin production as recited in claim 4, wherein: cooling recovery unit (5) with be equipped with liquid pump (94) between drier-filter (6), the inlet of liquid pump (94) with the liquid outlet of cooling recovery unit (5) is linked together, the liquid outlet of liquid pump (94) with the inlet of drier-filter (6) is linked together.
6. The recovery and treatment apparatus for chloromethane in organotin production as set forth in any one of claims 1 to 5, wherein: the cooling recovery device (5) comprises a recovery tank (51) and a refrigerator (52) for cooling the interior of the recovery tank (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368022.5U CN215996181U (en) | 2021-06-18 | 2021-06-18 | Methyl chloride recovery processing device in organic tin production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368022.5U CN215996181U (en) | 2021-06-18 | 2021-06-18 | Methyl chloride recovery processing device in organic tin production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215996181U true CN215996181U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121368022.5U Active CN215996181U (en) | 2021-06-18 | 2021-06-18 | Methyl chloride recovery processing device in organic tin production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215996181U (en) |
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2021
- 2021-06-18 CN CN202121368022.5U patent/CN215996181U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Chloromethane recovery and treatment device in organic tin production Effective date of registration: 20230703 Granted publication date: 20220311 Pledgee: China Construction Bank Suizhou Chengzhong Sub branch Pledgor: HUBEI BENXING NEW MATERIAL Co. Registration number: Y2023980046921 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230807 Granted publication date: 20220311 Pledgee: China Construction Bank Suizhou Chengzhong Sub branch Pledgor: HUBEI BENXING NEW MATERIAL Co. Registration number: Y2023980046921 |