CN201431881Y - Tail gas recovering device for spray polymerization vacuum system - Google Patents
Tail gas recovering device for spray polymerization vacuum system Download PDFInfo
- Publication number
- CN201431881Y CN201431881Y CN2009203016792U CN200920301679U CN201431881Y CN 201431881 Y CN201431881 Y CN 201431881Y CN 2009203016792 U CN2009203016792 U CN 2009203016792U CN 200920301679 U CN200920301679 U CN 200920301679U CN 201431881 Y CN201431881 Y CN 201431881Y
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- Prior art keywords
- reactor
- tail gas
- vacuum system
- pipeline
- spray polymerization
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Abstract
The utility model relates to a tail gas recovery device, in particular to a tail gas recovering device for spray polymerization vacuum system. The utility model mainly solves a technical problem of the prior art that tail gases formed in a reaction kettle due to the difficult condensation of a part of distillates is discharged from a discharge hole of a vacuum pump so as to lead to atmosphere pollution and other technical problems. The device comprises a reaction kettle (1), and is characterized in that: the upper end of the reaction kettle (1) is connected with a feed inlet pipe (2); the lower end of the feed inlet pipe extends into the reaction kettle (1) and is connected with a spray distributor (3); the lower end of the reaction kettle (1) is provided with a discharge hole; the reaction kettle (1) is connected with a condensation recovery device (4) by a pipeline; the condensation recovery device (4) is connected with a vacuum pump (5); the outlet of the vacuum pump is connected with a waste gas absorber (6) capable of storing an absorption medium; and the waste gas absorber (6) is a closed tank body provided with a water inlet, a water outlet and a vent nozzle.
Description
Technical field
The utility model relates to a kind of device for recovering tail gas, especially relates to a kind of to the isostructural improvement of spray polymerization reaction vacuum system device for recovering tail gas.
Background technology
The EO/PO polymerization process has some stages to need vacuum to take off to heat up in a steamer operation, removes moisture content and low molecular weight substance, and these all are to finish by vacuum pump apparatus, on the pipeline condensation recycling can be installed usually before pump, collects to be taken off by vacuum to distillate the condensation material that gets off.Chinese patent discloses a kind of breakdown jacket reactor, and (Granted publication number: CN 2822758Y), it comprises kettle, kettle cover and is connected chuck on the kettle, is fixedly connected with upper flange plate on the top of kettle, the bottom is fixedly connected with lower flange; The upper end of chuck is fixedly connected with the running-on ring flange, the lower end is fixedly connected with down the running-on ring flange; Chuck is enclosed within the outside of kettle, and upper flange plate of running-on ring flange and kettle is corresponding and link together by bolt on it, and lower flange of running-on ring flange and kettle is corresponding and link together by screw down for it; Bottom at chuck is provided with air inlet, top is provided with the gas outlet; Side in the bottom of chuck also is provided with compressed air and purges mouth, opposite side is provided with slag notch, middle part at chuck is provided with thermometer boss, the gas outlet of chuck is provided with air-introduced machine, the outside diameter of the upper flange plate of kettle is greater than the outside diameter of the last running-on ring flange of chuck, between the upper flange plate of running-on ring flange and kettle on the chuck, be provided with first sealing ring, between the lower flange of the following running-on ring flange of chuck and kettle, be provided with second sealing ring.But this reactor is owing to have part to take off to heat up in a steamer thing and be difficult for condensation, form tail gas, even around reactor, recycle earlier, but at last still will be from the discharging of vavuum pump floss hole, thereby atmosphere is polluted.
The utility model content
The utility model technical issues that need to address provide a kind of spray polymerization reaction vacuum system device for recovering tail gas, it mainly is to solve the existing in prior technology reactor owing to have part to take off to heat up in a steamer thing and be difficult for condensation, form tail gas, then from vavuum pump floss hole discharging, thus the technical problem that atmosphere is polluted etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Spray polymerization reaction vacuum system device for recovering tail gas of the present utility model, comprise reactor, it is characterized in that described reactor upper end is connected with feed pipe, the feed pipe lower end is stretched in the reactor and is connected with sprayable distributor, and the reactor lower end is provided with discharging opening; Reactor is connected with the condensation recover by pipeline, and the condensation recover is connected with vavuum pump, and the vacuum pump outlet place is connected with the waste gas absorber that can deposit absorbing medium, and the waste gas absorber has into water, water outlet, drain for the tank body of sealing on it.Taking all factors into consideration vacuum takes off and heats up in a steamer system water, low-molecular-weight alcohol, aldehyde, letones, water-soluble better, therefore the waste gas absorber adopts sealed shell of tank, into water, water outlet, drain are arranged, can inject gauge water in the waste gas absorber as absorbing medium, absorb tail gas by the water seal action principle, the hydrotrope can regularly be disposed to cesspool in the waste gas absorber, carries out biochemical treatment.
As preferably, described reactor upper end is tightly connected with feed pipe, and the feed pipe lower end is stretched in the reactor, and the upper end is connected with circulating pump by pipeline, the pump inlet place is connected the discharging opening place of reactor lower end by pipeline, also is connected with material sucking port between reactor discharging opening and the circulating pump.Feed pipe can pass through the distributor dispersed material after feeding in the reactor, makes that contact is more complete between the material.Circulating pump also can be called canned motor pump, replaces traditional stirring system with circulating pump system, by the running of circulating pump, carries out the interior circulation of uninterrupted still of material, thoroughly eliminates the existence in still inner transmission matter dead band.
As preferably, be connected with heat exchanger by pipeline between described circulating-pump outlet place and the feed pipe.Material can carry out heat exchange at circulation time in advance outside reactor, make material enter reactor under suitable temperature, and reaction efficiency is higher.Heat exchanger can be spiral heat exchanger.
As preferably, described heat exchanger is connected with water inlet pipe that can lead to cooling water and the outlet pipe that can lead to condensed water, and the upper end of heat exchanger is connected with the air inlet pipe that can lead to steam and the escape pipe that can lead to exhaust steam.Water inlet pipe and outlet pipe place at heat exchanger are provided with valve, like this according to material tender feeling condition, and the flow size that can open the heat exchanger heat transfer medium as one sees fit, energy-saving and cost-reducing.
As preferably, described inlet of circulating pump and exit all are connected with a ball valve, guarantee that material can only pass through in one direction.
Characteristics such as therefore, the utlity model has at the tail gas of vacuum gas pump floss hole increases waste gas recovering device, absorbs tail gas by the water seal action principle, prevents the direct exhaust emission atmosphere of tail gas, simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Parts, position and numbering among the figure: reactor 1, feed pipe 2, distributor 3, condensation recover 4, vavuum pump 5, waste gas absorber 6, circulating pump 7, material sucking port 8, heat exchanger 9, water inlet pipe 10, outlet pipe 11, air inlet pipe 12, escape pipe 13, ball valve 14.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the spray polymerization reactor that has heat exchanger of this example, be used for polymerization EO/PO, as Fig. 1, a reactor 1 is arranged, the reactor upper end is connected with feed pipe 2 by welded seal, and the feed pipe lower end feeds in the reactor and connects distributor 3.Reactor 1 top is connected with condensation recover 4 by pipeline, and the condensation recover is connected with vavuum pump 5, and the vacuum pump outlet place is connected with the waste gas absorber 6 that can deposit absorbing medium, and the waste gas absorber has into water, water outlet, drain for the tank body of sealing on it.The upper end of feed pipe also is connected with heat exchanger 9 by pipeline.Heat exchanger 9 is connected with water inlet pipe 10 that can lead to cooling water and the outlet pipe 11 that can lead to condensed water, is connected with valve on water inlet pipe 10, the outlet pipe 11.The upper end of heat exchanger 9 is connected with the air inlet pipe 12 that can lead to steam and the escape pipe 13 that can lead to exhaust steam.Heat exchanger import department is connected with circulating pump 7 by pipeline, and pump inlet is connected the lower end of reactor 1 by pipeline.The import of circulating pump 7 and exit all are connected with a ball valve 14, and also are connected with material sucking port 8 between reactor 1 discharging opening and the circulating pump 7.
During use, raw material fed in the reactor 1 react, raw material is gone out from the reactor bottom under the effect of circulating pump 7, carry out heat exchange at heat exchanger 9 places then, reach suitable temperature, enter in the reactor secondary response again by feed pipe 2 again, so circulation is up to reacting completely.The low refuse that produces in the reactor 1 is introduced into condensation recover 4 by pipeline and carries out condensation under vavuum pump 5 decompression states, and the absorbing medium that the uncooled tail gas that gets off is then deposited in the waste gas absorber 6 absorbs.
Claims (5)
1. a spray polymerization reacts the vacuum system device for recovering tail gas, comprise reactor (1), it is characterized in that described reactor (1) upper end is connected with feed pipe (2), the feed pipe lower end is stretched in the reactor (1) and is connected with sprayable distributor (3), and reactor (1) lower end is provided with discharging opening; Reactor (1) is connected with condensation recover (4) by pipeline, the condensation recover is connected with vavuum pump (5), the vacuum pump outlet place is connected with the waste gas absorber (6) that can deposit absorbing medium, and waste gas absorber (6) has into water, water outlet, drain for the tank body of sealing on it.
2. spray polymerization reaction vacuum system device for recovering tail gas according to claim 1, it is characterized in that described reactor (1) upper end is tightly connected with feed pipe (2), the feed pipe lower end is stretched in the reactor (1), the upper end is connected with circulating pump (7) by pipeline, the pump inlet place is connected the discharging opening place of reactor (1) lower end by pipeline, also is connected with material sucking port (8) between reactor (1) discharging opening and the circulating pump (7).
3. spray polymerization reaction vacuum system device for recovering tail gas according to claim 2 is characterized in that being connected with heat exchanger (9) by pipeline between described circulating pump (7) exit and the feed pipe (2).
4. spray polymerization reaction vacuum system device for recovering tail gas according to claim 3, it is characterized in that described heat exchanger (9) is connected with water inlet pipe (10) that can lead to cooling water and the outlet pipe (11) that can lead to condensed water, the upper end of heat exchanger (9) is connected with the air inlet pipe (12) that can lead to steam and the escape pipe (13) that can lead to exhaust steam.
5. according to claim 2 or 3 or 4 described spray polymerization reaction vacuum system device for recovering tail gas, it is characterized in that the import of described circulating pump (7) and exit all are connected with a ball valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203016792U CN201431881Y (en) | 2009-03-27 | 2009-03-27 | Tail gas recovering device for spray polymerization vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203016792U CN201431881Y (en) | 2009-03-27 | 2009-03-27 | Tail gas recovering device for spray polymerization vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201431881Y true CN201431881Y (en) | 2010-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203016792U Expired - Fee Related CN201431881Y (en) | 2009-03-27 | 2009-03-27 | Tail gas recovering device for spray polymerization vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201431881Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829529A (en) * | 2010-05-21 | 2010-09-15 | 宜兴市兴合树脂有限公司 | Water-vapor removing device of resin reaction kettle |
| CN104056587A (en) * | 2014-06-20 | 2014-09-24 | 王玙璠 | Energy-saving reaction kettle |
| CN109847397A (en) * | 2019-03-14 | 2019-06-07 | 江苏雷蒙新材料有限公司 | The device of recovery rate is improved in a kind of triacetyl glycerine production process |
| CN111905653A (en) * | 2020-07-16 | 2020-11-10 | 华峰集团上海工程有限公司 | Continuous polymerization reaction system of polyamide |
-
2009
- 2009-03-27 CN CN2009203016792U patent/CN201431881Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101829529A (en) * | 2010-05-21 | 2010-09-15 | 宜兴市兴合树脂有限公司 | Water-vapor removing device of resin reaction kettle |
| CN104056587A (en) * | 2014-06-20 | 2014-09-24 | 王玙璠 | Energy-saving reaction kettle |
| CN109847397A (en) * | 2019-03-14 | 2019-06-07 | 江苏雷蒙新材料有限公司 | The device of recovery rate is improved in a kind of triacetyl glycerine production process |
| CN109847397B (en) * | 2019-03-14 | 2021-07-27 | 江苏雷蒙新材料有限公司 | Device for improving acetic acid recovery rate in glycerol triacetate production process |
| CN111905653A (en) * | 2020-07-16 | 2020-11-10 | 华峰集团上海工程有限公司 | Continuous polymerization reaction system of polyamide |
| CN111905653B (en) * | 2020-07-16 | 2021-04-20 | 华峰集团上海工程有限公司 | Continuous polymerization reaction system of polyamide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20160327 |