CN204400885U - The purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process - Google Patents
The purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process Download PDFInfo
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- CN204400885U CN204400885U CN201420408208.2U CN201420408208U CN204400885U CN 204400885 U CN204400885 U CN 204400885U CN 201420408208 U CN201420408208 U CN 201420408208U CN 204400885 U CN204400885 U CN 204400885U
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Abstract
The utility model discloses the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process, it mainly comprises one-level normal pressure dehydration tower, vapour compressor (MVR), scraper evaporator, secondary dehydration tower, DMSO treating tower.Wherein one-level normal pressure dehydration column overhead vapour stream stock-traders' know-how MVR compression enters scraper evaporator, as scraper evaporator thermal source, realizes heat pump effect; The incoming stock secondary preheater of scraper evaporator after one-level normal pressure dehydration column overhead vapour compression, as the thermal source of raw material secondary preheater, product DMSO treating tower overhead vapours, as raw material one-level preheater thermal source, realizes thermal coupling effect.The utility model is from production reality, and three tower service temperatures, all lower than 120 DEG C, make DMSO decomposes reduce, thus ensure that the rate of recovery of DMSO and the safety of equipment and stability; Use heat pump and thermal coupled process in addition, save energy consumption.Whole technical process is reasonable, and level of automation is high.
Description
Technical field
The utility model relates to carbon fiber production process solvent recuperation field, particularly relates to the purification and recover equipment of a kind of dimethyl sulfoxide (DMSO) (DMSO).
Background technology
A large amount of DMSO will be used as spin solvent in production technique (the particularly wet processing process) process of carbon fiber, the precursor output obtained is large, and the stability of the carbon fiber after carbonization is strong, and the consumption that therefore DMSO is annual is sizable.In DMSO solution after carbon fiber production technique uses, the content of DMSO is relatively high, there is following problem if directly directly discharged by this industrial effluent: produce waste liquid and directly discharge, can produce certain impact to environment; Direct discharge will increase raw materials cost.
Existing bibliographical information is about solvent DMSO purification and recover technique mainly vacuum batch distillation technology and conventional three-tower rectification in carbon fiber production process, and described method all exists the deficiency of the aspects such as facility investment is large, energy consumption is large.
Therefore, the processing unit designing reasonably process DMSO waste liquid has important environmental benefit and economic benefit.To sum up, designing high safety, energy consumption is low, simple to operate, the DMSO rate of recovery is high recovery system, is a problem being worth research.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process, use one-level normal pressure dehydration tower, secondary negative pressure dehydration tower, DMSO negative pressure treating tower, make service temperature lower than 120 DEG C, reduce DMSO solution decomposes, thus ensure that stability and the security of equipment, improve the rate of recovery of DMSO; Use heat pump and thermal coupled process, greatly reduce energy consumption.
The utility model is from the production reality of carbon fiber industry, the technical scheme provided is: the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process, and it mainly comprises one-level normal pressure dehydration tower, vapour compressor (MVR), scraper evaporator, secondary dehydration tower, DMSO treating tower.The feature of this purification and recover DMSO equipment is: be provided with reboiler at the bottom of one-level normal pressure dehydration tower, secondary dehydration tower, DMSO treating tower tower; One-level normal pressure dehydration column overhead vapour stream stock-traders' know-how MVR compression enters scraper evaporator, as scraper evaporator thermal source, and then realizes heat pump effect; Secondary dehydration tower is provided with overhead condenser, and condenser is connected with return tank; The incoming stock secondary preheater of scraper evaporator after one-level normal pressure dehydration column overhead vapour compression, as the thermal source of raw material secondary preheater, product DMSO treating tower overhead vapours, as raw material one-level preheater thermal source, realizes thermal coupling effect; One-level pressurizing and dehydrating tower and secondary dehydration tower share a water pot.
A purification and recover equipment for solvent dimethyl sulfoxide (DMSO) in carbon fiber production process, is described as follows:
1) stock liquid squeezes into one-level normal pressure dehydration tower (1) through two-stage preheating;
2) reboiler (2) is provided with at the bottom of one-level normal pressure dehydration tower (1) tower, tower reactor discharging enters separator (7), overhead vapours discharging pipeline and MVR(3) be connected, after compression after scraper evaporator (6) incoming stock secondary preheater (4), raw material secondary preheater (4) is connected with the return tank (5) of one-level normal pressure dehydration tower (1), return tank (5) is provided with two outlets, and one connects one-level normal pressure dehydration tower (1) tower top and refluxes, and another connects water pot;
3) scraper evaporator (6) is provided with separator (7), and scraper evaporator (6) overhead vapor enters separator (7), carries out vapor-liquid separation, and vapor delivery line connection enters secondary dehydration tower (8) feeding line, and liquid phase circulation gets back to scraper evaporator (6);
4) secondary dehydration tower (8) is provided with tower bottom reboiler (9), tower reactor discharging enters DMSO treating tower (12), tower top is provided with condenser (10), condenser (10) outlet connects the return tank (11) of secondary dehydration tower (8), return tank (11) is provided with two outlets, one connects secondary dehydration tower (8) tower top and refluxes, and another connects water pot;
5) reboiler (13) is provided with at the bottom of DMSO treating tower (12) tower, tower reactor discharging pipeline connects except solid system, overhead vapours discharging pipeline connects raw material one-level preheater (14), raw material one-level preheater (14) connects the return tank (15) of DMSO treating tower (12), return tank (15) is provided with two outlets, one connects DMSO treating tower (12) tower top and refluxes, and another connects water pot.
Described raw material is that DMSO content is 10%-25% not containing superpolymer.
The part that described two-stage feed preheater and the condenser of secondary dehydration tower contact with material is stainless steel, and rest part side adopts carbon steel material.
The column internals of three described towers is High Efficient Standard Packing composition.
The service temperature of three described towers is all lower than 120 DEG C.
Described two-stage feed preheater and the condenser of secondary dehydration tower are equipped with venting port, discharge non-condensable gas in time, ensure the safety and stability of system.
Described one-level normal pressure dehydration tower and secondary dehydration tower share a water pot.
The thermal source of described scraper evaporator is the material stream of overhead vapours after MVR compression of one-level normal pressure dehydration tower; The thermal source of described one-level feed preheater is the overhead vapours of DMSO treating tower, and the thermal source of described secondary raw materials preheater is through the material stream of one-level normal pressure dehydration column overhead steam after MVR compression of scraper evaporator.
In sum, the utility model has following beneficial effect:
1) the utility model considers the physico-chemical property of DMSO, and the service temperature of whole technological process, all lower than 120 DEG C, efficiently solves its thermolysis, knot carbon phenomenon, and then improves the yield of DMSO, and ensure that stability and the security of equipment;
2) the utility model is from energy consumption angle, adopts heat pump techniques, one-level normal pressure dehydration column overhead steam is done after MVR compression the thermal source of scraper evaporator, has saved energy consumption;
3) one-level normal pressure dehydration column overhead steam through MVR compression after after scraper evaporator incoming stock secondary preheater, as its thermal source, product DMSO treating tower overhead vapours does the thermal source of raw material one-level preheater, has above-mentionedly used thermal coupled process, has saved energy consumption.
The utility model is designed by rational, solvent DMSO in energy efficient recovery, refining carbon fibre technology production process.Whole technique have device security stable, easy to operate, invest the advantages such as less, energy efficient, be conducive to Reducing Cost in Enterprises, increase economic efficiency, therefore, the process program that the utility model proposes is that a kind of efficiently feasible DMSO reclaims, purification devices.Use this device, make the purity of the DMSO reclaimed reach more than 99.9%.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 structural representation of the present utility model;
In figure, 1 is one-level normal pressure dehydration tower, and 2 is the reboiler of one-level normal pressure dehydration tower, and 3 is MVR, 4 is raw material one-level preheater, and 5 is the return tank of one-level normal pressure dehydration tower, and 6 is scraper evaporator, 7 is separate chamber, and 8 is secondary dehydration tower, and 9 is the reboiler of secondary dehydration tower, 10 is the condenser of secondary dehydration tower, 11 is the return tank of secondary dehydration tower, and 12 is DMSO treating tower, and 13 is the reboiler of DMSO treating tower, 14 is raw material one-level preheater, and 15 is the return tank of DMSO treating tower.
Embodiment
Below in conjunction with accompanying drawing and concrete case study on implementation, the utility model is described further.
For the DMSO produced in carbon fiber production process and water mixed liquid, it can be used as raw material, raw material is successively through raw material one-level preheater (14) and raw material secondary preheater (4), one-level normal pressure dehydration tower (1) middle part charging is squeezed into through feedstock pump, one-level normal pressure dehydration tower (1) tower reactor discharging squeezes into separator (7) through pump, in separator (7), vapour phase enters secondary dehydration tower (8), liquid phase circulation is in scraper evaporator (6), one-level normal pressure dehydration tower (1) vapor stream of top of the tower plume is through MVR(3) compression after enter scraper evaporator (6) as its thermal source, then this stream stock gets back to part conduct backflow in the return tank (5) of one-level normal pressure dehydration tower (1) through raw material secondary evaporimeter (4), a part flows into water pot, secondary dehydration tower (8) tower reactor discharging enters DMSO treating tower (12), and overhead vapours enters return tank (11) part for secondary dehydration tower (8) as backflow through condenser (10) condensation, and a part flows into water pot, DMSO treating tower (12) tower reactor discharging enters except fixing apparatus system, overhead vapours enters return tank (15) through raw material one-level preheater (14) condensation, return tank (15) is provided with two outlets, one connects DMSO treating tower (11) tower top and refluxes, and another connects product DMSO holding tank.
The above is preferred embodiment of the present utility model, and conduct is not to restriction of the present utility model.During practical application, the utility model can have different designs according to different processing parameters.All structures in right of the present utility model and form, any amendment made, replacement and improvement, all should be included within protection model of the present utility model.
Claims (4)
1. the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a carbon fiber production process, this equipment comprises one-level normal pressure dehydration tower, vapour compressor MVR, scraper evaporator, secondary dehydration tower, DMSO treating tower, it is characterized in that: one-level normal pressure dehydration column overhead vapour stream stock-traders' know-how vapour compressor MVR compression enters scraper evaporator, as scraper evaporator thermal source, and then realize heat pump effect; Secondary dehydration tower is provided with overhead condenser, and condenser is connected with return tank; The incoming stock secondary preheater of scraper evaporator after one-level normal pressure dehydration column overhead vapour compression, as the thermal source of raw material secondary preheater, product DMSO treating tower overhead vapours, as raw material one-level preheater thermal source, realizes thermal coupling effect.
2. the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process according to claim 1, is characterized in that stock liquid squeezes into one-level normal pressure dehydration tower (1) through raw material one-level preheater (14) and raw material secondary preheater (4).
3. the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process according to claim 1 and 2, it is characterized in that using heat pump techniques, one-level normal pressure dehydration tower (1) vapor stream of top of the tower stock-traders' know-how vapour compressor MVR compresses (3) and enters scraper evaporator (6), as scraper evaporator (6) thermal source.
4. the purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process according to claim 1 and 2, it is characterized in that using thermal coupling technology, the incoming stock secondary preheater (4) of scraper evaporator (6) after the compression of one-level normal pressure dehydration tower (1) overhead vapours, as the thermal source of raw material secondary preheater (4), product DMSO treating tower (12) overhead vapours is as raw material one-level preheater (14) thermal source.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420408208.2U CN204400885U (en) | 2014-07-23 | 2014-07-23 | The purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420408208.2U CN204400885U (en) | 2014-07-23 | 2014-07-23 | The purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process |
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| CN204400885U true CN204400885U (en) | 2015-06-17 |
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| CN201420408208.2U Expired - Fee Related CN204400885U (en) | 2014-07-23 | 2014-07-23 | The purification and recover equipment of solvent dimethyl sulfoxide (DMSO) in a kind of carbon fiber production process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362568A (en) * | 2017-09-04 | 2017-11-21 | 中安信科技有限公司 | The apparatus and method of high efficiente callback solvent in a kind of high-performance carbon fibre production |
| CN113426151A (en) * | 2021-07-26 | 2021-09-24 | 常州乐研分离技术有限公司 | Device and method for solvent DMSO rectification recovery process in carbon fiber production process |
| CN113559542A (en) * | 2021-07-19 | 2021-10-29 | 常州乐研分离技术有限公司 | Device and method for DMSO (dimethyl sulfoxide) concentration process |
| CN114436916A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | System and method for recovering and refining dimethyl sulfoxide in carbon fiber production and application of system and method |
| CN114593615A (en) * | 2022-03-23 | 2022-06-07 | 上海谋基实业有限公司 | Energy recycling method for acrylic acid purification process |
| CN115232042A (en) * | 2022-09-26 | 2022-10-25 | 烟台国邦化工机械科技有限公司 | High-efficiency energy-saving DMSO (dimethyl sulfoxide) recovery process |
-
2014
- 2014-07-23 CN CN201420408208.2U patent/CN204400885U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362568A (en) * | 2017-09-04 | 2017-11-21 | 中安信科技有限公司 | The apparatus and method of high efficiente callback solvent in a kind of high-performance carbon fibre production |
| CN107362568B (en) * | 2017-09-04 | 2018-12-04 | 中安信科技有限公司 | The method of high efficiente callback solvent in a kind of production of high-performance carbon fibre |
| CN114436916A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | System and method for recovering and refining dimethyl sulfoxide in carbon fiber production and application of system and method |
| CN113559542A (en) * | 2021-07-19 | 2021-10-29 | 常州乐研分离技术有限公司 | Device and method for DMSO (dimethyl sulfoxide) concentration process |
| CN113426151A (en) * | 2021-07-26 | 2021-09-24 | 常州乐研分离技术有限公司 | Device and method for solvent DMSO rectification recovery process in carbon fiber production process |
| CN114593615A (en) * | 2022-03-23 | 2022-06-07 | 上海谋基实业有限公司 | Energy recycling method for acrylic acid purification process |
| CN115232042A (en) * | 2022-09-26 | 2022-10-25 | 烟台国邦化工机械科技有限公司 | High-efficiency energy-saving DMSO (dimethyl sulfoxide) recovery process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300384 Alex Hua Tian Road, Nankai District, Nankai District, Tianjin, No. 2 International Entrepreneurship Center 4023 Patentee after: Tianjin Zhongfu environmental Polytron Technologies Inc Address before: 300384 Alex Hua Tian Road, Nankai District, Nankai District, Tianjin, No. 2 International Entrepreneurship Center 4023 Patentee before: TIANJIN ZHONGFU ENGINEERING TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20200723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |