CN102772994B - Negative pressure type organic tail gas recovery tower and process thereof - Google Patents
Negative pressure type organic tail gas recovery tower and process thereof Download PDFInfo
- Publication number
- CN102772994B CN102772994B CN201210208088.7A CN201210208088A CN102772994B CN 102772994 B CN102772994 B CN 102772994B CN 201210208088 A CN201210208088 A CN 201210208088A CN 102772994 B CN102772994 B CN 102772994B
- Authority
- CN
- China
- Prior art keywords
- tail gas
- tank
- spray
- pipe
- organic
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a negative pressure type organic tail gas recovery tower and a process thereof. The negative pressure type organic tail gas recovery tower comprises a spray cylinder, a base tank and a vacuum pump, the spray cylinder performs multilayer spraying, a water pump is arranged on a spray supplying pipeline and communicated with the bottom of the base tank, and an opening is arranged at the top of the spray cylinder; a cooling coil is arranged inside the base tank and connected with an external circulation refrigerating machine; the vacuum pump is connected with a tail gas pipe and a tail gas input pipe and respectively communicated with the middle portion and the lower portion of the base tank through a water pumping pipe and a water delivery pipe; and a temporary storage tank is parallelly arranged outside the base tank and connected with the base tank through a U-shaped pipe, and an overflow port is arranged on the upper portion of the temporary storage tank. According to the recovery tower and the process thereof, on the basis of traditional spray processes, a negative pressure environment is designed to reduce overflowing of organic tail gases; by means of circulation refrigerating, cooling water is forced to perform circulation spraying so that water saving is achieved and liquefaction of the organic tail gases is thorough; and by means of a U-shaped pipe bypass,leading-out and temporary storage of organic solutions under the negative pressure environment are achieved, and recovery rate of the organic tail gases is over 90%.
Description
One, technical field
The present invention relates to chemical field solvent recovery technology from vent gas and device, be specifically related to a kind of suction type organic tail gas recovery tower and technique thereof.
Two, background technology
With the grease in organic solvent lixiviate cottonseed, realize cold-press and produce, more traditional hot moulding technique can be avoided cottonseed kernel protein heated denaturalization, and further dephenolize obtains cotton protein.Application number is the processing method that 00134520.6 Chinese patent description discloses a kind of cottonseed, is to adopt organic solvent from cottonseed lixiviate grease, thereby then cotton dregs is carried out methyl alcohol dephenolize and obtained the process of cottonseed kernel protein.In this process, organic solvent is for recycling, wherein need to be in the recovery of liquefying of technique end to the organic solvent tail gas of vaporization.
The patent No. is 02231730.9 the disclosed a kind of negative pressure method safety environmentally friendly ammonia tail gas retracting device of Chinese patent; by jet ejectors, cooler, ammoniacal liquor negative-pressure cup and circulating pump, formed; the negative pressure producing by retracting device sucks ammonia tail gas; and be dissolved in water, thereby realize ammonia tail gas, reclaim and eliminate the environmental pollution that tail gas brings.But the recycle object ammonia of the method is water-soluble gas, not identical with organic solvent tail gas, thereby can not be used for the recovery of organic tail gas.
The patent No. is that the utility model of ZL201020167633.9 discloses a kind of N-hexane tail gas recovering device; comprise exhaust gas filter, absorbent charcoal adsorption tank, gas-distributing cylinder, condenser, layering groove; utilize granular activated carbon as adsorbing medium; by the n-hexane absorption in organic tail gas; adopt again low-pressure steam as desorption medium, realize and align Recycling hexane recycling.But the method is again to reclaim for the combustion gas reclaiming that is condensed, and in its organic tail gas, the content of n-hexane reduces greatly, the adsorption and desorption process operation cost adopting is relatively high, is also not suitable for the tail gas that concentration is higher.
Three, summary of the invention
The object of the invention is to provide a kind of lixiviation process that is applicable to and produces organic tail gas recovery process and device in the technique of cottonseed oil and cotton protein.
This suction type organic tail gas recovery tower, comprises spray cylinder, end tank, vavuum pump, and described spray cylinder is Multi-layer sprinkling, and every layer comprises spray head, filler, on spray feeding pipe, is provided with water pump and communicates with end pot bottom, and opening is established on cylinder top.Described tank inside, the end arranges cooling coil and is connected with outer loop refrigeration machine.Described vavuum pump is connected with tail gas input pipe with offgas duct, and is connected with middle part and the bottom of end tank respectively by drinking-water pipe and water-supply-pipe.At the end tank temporary tank that be arranged in parallel outward, this temporary tank is connected by U-shaped pipe with end tank, on temporary tank top, is provided with overfall in addition.
The recovery process of this recovery tower is: organic tail gas-multi-stage spray (negative pressure, cooler environment)-organic coarse solution-temporary separating-purifying-organic solution.
This recovery tower has designed subnormal ambient on traditional spray process basis, effectively prevents the loss of overflowing of organic tail gas.And circularly cooling, cooling water forced circulation spray, not only using water wisely, and make organic tail gas liquefaction thoroughly.U-shaped pipe bypass has realized the derivation of upper strata organic solution under subnormal ambient and temporary well, and the organic tail gas rate of recovery can reach more than 90%.
Three, accompanying drawing and explanation
Fig. 1 is the structural representation of recovery tower of the present invention, and Fig. 2 is recovery process flow chart of the present invention.
four, the specific embodiment
As Fig. 1, suction type organic tail gas recovery tower of the present invention, comprises spray cylinder 4, end tank 1, vavuum pump 10, described spray cylinder 4 is two-layer spray, every layer comprises spray head 8, filler 5, on spray feeding pipe, is provided with water pump 17 and communicates with end tank 1 bottom, and opening 6 is established on cylinder top.Described end tank 1 inside arranges cooling coil 2 and is connected with outer loop refrigeration machine 7.Described vavuum pump 10 is connected with tail gas input pipe 3 with offgas duct 9, and is connected with middle part and the bottom of end tank 1 respectively by drinking-water pipe 11 and water-supply-pipe 12.The temporary tank 14 that be arranged in parallel outside end tank 1, this temporary tank 14 is connected by U-shaped pipe 13 with end tank 1, and the two-port of U-shaped pipe 13 is all to downward-extension in tank body, and it arranges erosion control cap 18 at the port of export of keeping in tank 14.On temporary tank 14 tops, be provided with overfall 16.
This recovery tower has carried out significantly improving on traditional spray process basis, ring vaccum pump 10 is not only to the interior conveying organic tail gas of spray cylinder 4, and carry out forced circulation by drinking-water pipe 11 and water-supply-pipe 12 with the liquid in end tank 1, thereby for spray system provides the subnormal ambient of 0.03-0.04MPa, the organic tail gas in spray cylinder 4 can not overflowed from top.Cooling coil 2 carries out circularly cooling with outer loop refrigeration machine 7, cooling water (16 ℃-21 ℃) in end tank 1 is through water pump 17 forced circulation sprays, double layers of sprinkling cylinder 4 lengthens spray distance, organic tail gas is contacted more thorough with cooling water, realizes fully liquefaction.Bypass that U-shaped pipe 13 is constructed has realized the derivation of upper strata organic solution under subnormal ambient and temporary well.Erosion control cap 18 makes the organic solution that enters temporary tank 14 from U-shaped pipe 13 reduce impact, thereby reduces the upset to the liquid phase systems in temporary tank 14, promotes its stable and precipitate and separate.
The recovery process of this recovery tower is: organic tail gas-multi-stage spray (negative pressure, cooler environment)-organic coarse solution-temporary separating-purifying-organic solution.
The not only using water wisely of this system, and organic tail gas liquefaction is thoroughly, and the organic tail gas rate of recovery can reach more than 95%.Through production practices, lixiviation process cotton protein is produced full technique organic solvent consumption rate and is can be controlled in below 4%.Not only conservation consumption, and reduced toxic emission.
Claims (3)
1. a suction type organic tail gas recovery tower, comprise spray cylinder (4), end tank (1), vavuum pump (10), it is characterized in that described spray cylinder (4) is Multi-layer sprinkling, every layer comprises spray head (8), filler (5), on spray feeding pipe, be provided with water pump (17) and communicate with end tank (1) bottom, opening (6) is established on cylinder top; Described end tank (1) inside arranges cooling coil (2) and is connected with outer loop refrigeration machine (7), described vavuum pump (10) is connected with tail gas input pipe (3) with offgas duct (9), and is connected with middle part and the bottom of end tank (1) respectively by drinking-water pipe (11) and water-supply-pipe (12); Temporary tank (14) in addition be arranged in parallel outside end tank (1), this temporary tank (14) is connected by U-shaped pipe (13) with end tank (1), on temporary tank (14) top, is provided with overfall (16).
2. recovery tower as claimed in claim 1, it is characterized in that described spray cylinder (4) is for two-layer, the two-port of described U-shaped pipe (13) is all to downward-extension in tank body, and its port of export in temporary tank (14) arranges erosion control cap (18).
3. suction type organic tail gas recovery tower as claimed in claim 1, is characterised in that its recovery process route is: organic tail gas-multi-stage spray-organic coarse solution-temporary separating-purifying-organic solution, and described multi-stage spray is negative pressure, cooler environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208088.7A CN102772994B (en) | 2012-06-12 | 2012-06-12 | Negative pressure type organic tail gas recovery tower and process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208088.7A CN102772994B (en) | 2012-06-12 | 2012-06-12 | Negative pressure type organic tail gas recovery tower and process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102772994A CN102772994A (en) | 2012-11-14 |
| CN102772994B true CN102772994B (en) | 2014-04-30 |
Family
ID=47118239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210208088.7A Expired - Fee Related CN102772994B (en) | 2012-06-12 | 2012-06-12 | Negative pressure type organic tail gas recovery tower and process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102772994B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977795B (en) * | 2017-05-31 | 2021-01-12 | 中国科学院金属研究所 | Device and method for preparing silicon carbide coating by using electric coupling chemical vapor deposition method |
| CN107626117A (en) * | 2017-11-10 | 2018-01-26 | 大丰鑫源达化工有限公司 | A kind of organic solvent recovery device |
| CN110939855A (en) * | 2019-12-31 | 2020-03-31 | 苏州致邦能源装备有限公司 | Low-temperature liquid storage tank with anti-flushing spraying device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200948368Y (en) * | 2006-05-17 | 2007-09-19 | 殷卫兵 | Mircro-negative-pressure type and freezing type packing tower tail gas recovery device |
| CN200995114Y (en) * | 2007-01-17 | 2007-12-26 | 张建志 | Impact spray absorbing tower |
| CN202778243U (en) * | 2012-06-12 | 2013-03-13 | 新疆震企生物科技有限公司 | Negative-pressure organic tail gas recovery tower |
-
2012
- 2012-06-12 CN CN201210208088.7A patent/CN102772994B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200948368Y (en) * | 2006-05-17 | 2007-09-19 | 殷卫兵 | Mircro-negative-pressure type and freezing type packing tower tail gas recovery device |
| CN200995114Y (en) * | 2007-01-17 | 2007-12-26 | 张建志 | Impact spray absorbing tower |
| CN202778243U (en) * | 2012-06-12 | 2013-03-13 | 新疆震企生物科技有限公司 | Negative-pressure organic tail gas recovery tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102772994A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102772994B (en) | Negative pressure type organic tail gas recovery tower and process thereof | |
| CN109437234B (en) | Compound semiconductor epitaxy tail gas recycling device and method | |
| CN103833049A (en) | Device and process for stilling ammonia with negative pressure | |
| CN202778243U (en) | Negative-pressure organic tail gas recovery tower | |
| CN201735206U (en) | Cooling and absorbing oil gas recovery device | |
| CN203861954U (en) | Removing and recycling system for solvents | |
| CN203408490U (en) | Vacuumizing pipeline gas essential oil recovery device | |
| CN102698569B (en) | Negative pressure-type recovery device for methanol and process for negative pressure-type recovery device | |
| CN106187668B (en) | A kind of method that organic matter recycles in Synthetic Leather exhaust gas | |
| CN202465722U (en) | Vacuumizing system for low-temperature vacuum drier | |
| CN205340480U (en) | Oil gas recycling device | |
| CN201899967U (en) | Comprehensive oil gas recovery device | |
| CN101279180A (en) | Method for improving exhaust air recovery tower efficiency and exhaust air recovery tower | |
| CN103830991A (en) | Vacuum desorption system and method for adsorption and recovery of organic solvent | |
| CN209306960U (en) | A kind of compound semiconductor epitaxial tail gas recycling device | |
| CN207169363U (en) | A kind of MMT produces solvent recovery unit | |
| CN208599469U (en) | A kind of CCl4 and VCM device for recovering tail gas of acid gas-containing | |
| CN204211489U (en) | Smart selenium equipment is produced in vacuum distilling | |
| CN110523219A (en) | A kind of processing system and its application method of the industrial tail gas containing ethylene glycol | |
| CN205635424U (en) | Cyanoacetic acid ester is esterified gaseous absorption and is recycled device | |
| TW201540667A (en) | Method for recycling and reusing ammonia by purifying and concentrating ammonia-containing waste water | |
| CN203938485U (en) | A kind of Phosphoric Acid Concentration energy saver | |
| CN203663659U (en) | Vacuum desorption system for adsorption recovery of organic solvent | |
| CN204699431U (en) | Condensation-adsorption method oil-gas recovery processing device | |
| CN202803071U (en) | Negative pressure type methanol recycling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 831100 Xinjiang Wujiaqu City League farm C District No. 16 Patentee after: XINJIANG ZHENGQI BIOTECHNOLOGY CO., LTD. Address before: 831100 the Xinjiang Uygur Autonomous Region Changji City Wuyi Road on the north side of No. 35 Patentee before: Xinjiang Zhenqi Bio-technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |