CN201952390U - High-efficiency acetone recovery device in production of waterborne polyurethane by using acetone method - Google Patents
High-efficiency acetone recovery device in production of waterborne polyurethane by using acetone method Download PDFInfo
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- CN201952390U CN201952390U CN201020654813XU CN201020654813U CN201952390U CN 201952390 U CN201952390 U CN 201952390U CN 201020654813X U CN201020654813X U CN 201020654813XU CN 201020654813 U CN201020654813 U CN 201020654813U CN 201952390 U CN201952390 U CN 201952390U
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- acetone
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- withdrawing
- vertical condenser
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses a high-efficiency acetone recovery device in the production of waterborne polyurethane by using an acetone method, comprising a distiller. A vertical condenser is fixedly connected with a central hole at the upper end of the distiller; the upside of the vertical condenser is connected with a horizontal condenser which is downwards inclined; the bottom end of the horizontal condenser is connected into a recovery tank through a pipeline; an opening at the upper end of the recovery tank is connected with a vertical condenser which is connected into a baffle tank through a pipeline; and the baffle tank is communicated with a vacuum pump through a pipeline. The utility model has the advantages of achieving the aim of recovering high-purity acetone with high efficiency and great yield, basically being capable of recovering all added acetone, greatly shortening distillation time, saving energy, lightening labor intensity, radically lessening environmental pollution and resource waste in a production process and improving production efficiency.
Description
Technical field
The utility model relates to the aqueous polyurethane industrial production field, and particularly a kind of acetone method is produced acetone high efficiente callback device in the aqueous polyurethane.
Background technology
Contain in the performed polymer of hydrophilic radical in the synthetic preparation of aqueous polyurethane, the introducing of small molecule chain extender increases polymericular weight, hydrogen bond forms simultaneously, these have all brought the increase of polymer viscosity, thereby should adopt lower boiling energy and water blended inert organic solvents to control the system viscosity of crucial chain extension step, make the polyurethane solution that contains hydrophilic radical.Water is with this solution dilution, and the solvent that forms W/O earlier is the emulsion of external phase, and then adds a large amount of water, and reversing mutually takes place, and water becomes external phase and forms dispersion liquid, and the dispersion liquid that solvent obtains aqueous polyurethane is removed in distillation.
It is low that acetone has a boiling point, be easy to from system, remove, can dissolve each other with water, and low toxicity can dissolve the performed polymer of aqueous polyurethane in synthetic preferably, significantly reduces the characteristics such as viscosity of performed polymer, acetone method production aqueous polyurethane also has favorable reproducibility in the industrial production simultaneously, advantages such as constant product quality, thereby acetone method is the most important also method of production aqueous polyurethane the most commonly used, occupies critical role in suitability for industrialized production always.
At present the industrial acetone method is produced the equipment of aqueous polyurethane, mostly is and adopts chuck electrically heated or steam heating in airtight still, directly the mode of the underpressure distillation of drawing with negative pressure.Temperature is low, negative pressure hour, exist the distillation cycle long, energy consumption is big, the distillation that has even will accomplish 2～3h, and acetone reclaims also not thorough; Under comparatively high temps and big negative pressure, distill, exist distillation and produce more bubble, being easy to a product is extracted in the acetone withdrawing can together, even by adding a large amount of suds suppressors, the acetone that high temperature, high negative pressure reclaim down also mostly contains more water, purity is low, it is less really to receive the recovery amounts of acetone, general only the recovery adds 1/3rd of amounts of acetone, and a large amount of acetone all is discharged in the atmosphere with recirculated water, causes the pollution of environment and the waste of resource.
The utility model content
Produce acetone recovery difficulty and energy consumption height and the problem of environment pollution caused that exists in the aqueous polyurethane equipment in order to solve present acetone method, the purpose of this utility model is to provide a kind of acetone method to produce the device of high efficiente callback acetone in the aqueous polyurethane.
The purpose of this utility model is achieved by taking following technical scheme:
Acetone method is produced acetone high efficiente callback device in the aqueous polyurethane, comprise a still kettle, it is characterized in that, still kettle upper end centre hole fixedly connected one vertical condenser, described vertical condenser top connects a horizontal condenser, described horizontal condenser is downward-sloping setting, and the bottom of horizontal condenser is inserted in the withdrawing can by pipeline.
The further technical scheme of the utility model is, described withdrawing can upper end open connects a vertical condenser, and this vertical condenser inserts surge tank by pipeline, and described surge tank is communicated with vacuum pump by pipeline.
The further technical scheme of the utility model is, the pipeline that inserts withdrawing can extends the withdrawing can bottom, fixing umbrella steel plate on the withdrawing can interior conduit.
The utility model further technical scheme is that the pipeline between described surge tank and the vacuum pump is provided with non-return valve.
The mode of vertical condenser and horizontal condenser combination is adopted in the still kettle top, and acetone rose with gas phase when vertical condenser guaranteed distillation, and the water vapour of bringing up under the negative pressure is got back in the still again under the effect of vertical condenser; Horizontal condenser flows into the acetone withdrawing can to the gas phase acetone liquefaction that vertical condenser rises.The pipeline of acetone withdrawing can inside extends the withdrawing can bottom, fixing umbrella steel plate on the withdrawing can interior conduit, can reduce aqueous acetone further vaporization under negative pressure of recovery, the vertical condenser that the acetone of vaporizing under a small amount of negative pressure is brought to the withdrawing can top is liquefied and gets back in the withdrawing can, connects a surge tank at last and leads to vacuum pump.In the vacuum pump front non-return valve is installed, is taken place with anti-suck.
Compare with present technology, advantage of the present utility model is, can realize the purpose of high efficiente callback acetone, can access comparatively highly purified recovery acetone, yield is big, substantially can all reclaim the acetone that is added, greatly reduce distillation time, saved the energy, reduced labour intensity, reduced the production process the pollution of environment and the waste of resource from root, improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, still kettle 1 of the present utility model adopts the mode of external jacket vapour heating, and chuck 8 is provided with steam inlet 6 and outlet 15.Still kettle 1 upper end is provided with opening for feed 2, thermowell 14 in conventional opening such as manhole 13 grades and the insertion still, still kettle 1 bottom is provided with drain hole 16, the mode of vertical condenser 3 and horizontal condenser 5 combinations is adopted in still kettle 1 top, still kettle 1 is installed on service platform by hangers 7, vertical condenser 3 is connected by flange with still kettle upper end centre hole, above vertical condenser 3, be provided with the acquisition port 9 of gas phase temperature, vertical condenser 3 is provided with circulating water intake 12 and outlet 4, vertical condenser 3 tops connect a horizontal condenser 5, horizontal condenser 5 is the high right low downward-sloping setting in a left side, horizontal condenser 5 is provided with circulating water intake 11 and outlet 10, the bottom of horizontal condenser 5 is inserted in the withdrawing can 20 by pipeline and is extended the bottom of withdrawing can 20, pipeline is provided with glass and looks bucket 17, fix three umbrella shape stainless steel plates 21 on the pipeline in withdrawing can from top to bottom, in order to the volatilization that reduces acetone with to the condensation of vaporization acetone.The withdrawing can upper end open connects a vertical condenser 23, and vertical condenser 23 is mainly used in the condensation of a small amount of gas phase acetone, and withdrawing can 20 is provided with hangers 19 and observes window 26, and the bottom is provided with drain hole 22, and leaving-one method blue interface 18 in top is used to connect pressure controlled valve.To surge tank 25, the surge tank bottom is provided with drain hole 27 by pipe connection in vertical condenser 23 outlets, and top drain 28 connects a valve and is used for emptying manipulation.Surge tank is connected to the water cycle vacuum pump after connecting a non-return valve 24.Vertical condenser 23 inserts surge tank 25 by pipeline, and surge tank 25 is communicated with vacuum pump by pipeline.
The foregoing description only is a better embodiment of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; be not to be that protection domain of the present utility model is limited; all any simple modification and equivalent structure transformation or modifications of being done according to the utility model spirit all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. acetone method is produced acetone high efficiente callback device in the aqueous polyurethane, comprise a still kettle, it is characterized in that: still kettle upper end centre hole fixedly connected one vertical condenser, described vertical condenser top connects a horizontal condenser, described horizontal condenser is downward-sloping setting, and the bottom of horizontal condenser is inserted in the withdrawing can by pipeline.
2. acetone method according to claim 1 is produced acetone high efficiente callback device in the aqueous polyurethane, it is characterized in that: described withdrawing can upper end open connects a vertical condenser, this vertical condenser inserts surge tank by pipeline, and described surge tank is communicated with vacuum pump by pipeline.
3. acetone method according to claim 1 is produced acetone high efficiente callback device in the aqueous polyurethane, it is characterized in that: the pipeline that inserts withdrawing can extends the withdrawing can bottom, fixing umbrella steel plate on the withdrawing can interior conduit.
4. acetone method according to claim 2 is produced acetone high efficiente callback device in the aqueous polyurethane, and it is characterized in that: the pipeline between described surge tank and the vacuum pump is provided with non-return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020654813XU CN201952390U (en) | 2010-12-13 | 2010-12-13 | High-efficiency acetone recovery device in production of waterborne polyurethane by using acetone method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020654813XU CN201952390U (en) | 2010-12-13 | 2010-12-13 | High-efficiency acetone recovery device in production of waterborne polyurethane by using acetone method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201952390U true CN201952390U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020654813XU Expired - Lifetime CN201952390U (en) | 2010-12-13 | 2010-12-13 | High-efficiency acetone recovery device in production of waterborne polyurethane by using acetone method |
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| CN (1) | CN201952390U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524243A (en) * | 2016-02-02 | 2016-04-27 | 上海华峰材料科技研究院（有限合伙） | Solvent removal method for waterborne polyurethane production process |
| CN106893077A (en) * | 2017-04-13 | 2017-06-27 | 合肥科天水性科技有限责任公司 | A kind of aqueous polyurethane energy-conservation precipitation production equipment and process |
| CN110404287A (en) * | 2018-04-27 | 2019-11-05 | 上海科德实业有限公司 | A kind of retort gas condenses collection system again |
| CN114146653A (en) * | 2021-12-06 | 2022-03-08 | 丽水镇铭新材料科技有限公司 | Waterborne polyurethane production device and use method thereof |
| CN114681941A (en) * | 2022-06-02 | 2022-07-01 | 山东海科新源材料科技股份有限公司 | High-purity ethylene glycol bis (propionitrile) ether rectification device and method |
-
2010
- 2010-12-13 CN CN201020654813XU patent/CN201952390U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524243A (en) * | 2016-02-02 | 2016-04-27 | 上海华峰材料科技研究院（有限合伙） | Solvent removal method for waterborne polyurethane production process |
| CN105524243B (en) * | 2016-02-02 | 2018-08-31 | 上海华峰新材料研发科技有限公司 | The method that aqueous polyurethane production process removes solvent |
| CN106893077A (en) * | 2017-04-13 | 2017-06-27 | 合肥科天水性科技有限责任公司 | A kind of aqueous polyurethane energy-conservation precipitation production equipment and process |
| CN110404287A (en) * | 2018-04-27 | 2019-11-05 | 上海科德实业有限公司 | A kind of retort gas condenses collection system again |
| CN114146653A (en) * | 2021-12-06 | 2022-03-08 | 丽水镇铭新材料科技有限公司 | Waterborne polyurethane production device and use method thereof |
| CN114681941A (en) * | 2022-06-02 | 2022-07-01 | 山东海科新源材料科技股份有限公司 | High-purity ethylene glycol bis (propionitrile) ether rectification device and method |
| CN114681941B (en) * | 2022-06-02 | 2022-09-09 | 山东海科新源材料科技股份有限公司 | High-purity ethylene glycol bis (propionitrile) ether rectification device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Anhui province Bengbu City Yuhui District 233010 sets of Qin Qin Ren Lu middle Patentee after: Anhui good thinking paint Limited by Share Ltd Address before: Anhui province Bengbu City Yuhui District 233010 sets of Qin Qin Ren Lu middle Patentee before: Anhui Haosijia Paint Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |