CN202246142U - Steam stripping system for recycled water containing epoxy chloropropane (ECH) - Google Patents
Steam stripping system for recycled water containing epoxy chloropropane (ECH) Download PDFInfo
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- CN202246142U CN202246142U CN2011203467347U CN201120346734U CN202246142U CN 202246142 U CN202246142 U CN 202246142U CN 2011203467347 U CN2011203467347 U CN 2011203467347U CN 201120346734 U CN201120346734 U CN 201120346734U CN 202246142 U CN202246142 U CN 202246142U
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Abstract
The utility model discloses a steam stripping system for recycled water containing epoxy chloropropane (ECH), belongs to the field of chemical engineering production equipment, and solves the technical problems of unstable operation and poor stripping effect of the conventional stripping tower. The steam stripping system provided by the utility model comprises a feed tank, a feed pump, a stripping tower, a condenser, a circulating pump, a phase splitter, a temperature transmitter, a temperature controller, a liquid level transmitter, a liquid level controller, a heat exchanger, a feed pipe, a return pipe, an ECH pipe and an overflow pipe. Compared with the prior art, the utility model has the advantages that the steam stripping system is optimized, the automatic production is realized, the recovery rate of ECH is improved, and energy utilization is reduced.
Description
Technical field
The utility model belongs to the chemical production equipment field, relates to a kind of recycle-water stripping system that contains epoxy chloropropane.
Background technology
The macromolecular compound that contains epoxide group in all molecular structures is referred to as epoxy resin.Epoxy resin is the organic high molecular compound that contains two or more epoxide groups in the general reference molecule, and except that indivedual, their relative molecular mass is not high.The molecular structure of epoxy resin is containing active epoxide group in the molecular chain for its characteristic, and epoxide group can be positioned at the end, centre of molecular chain or structure circlewise.Owing to contain active epoxide group in the molecular structure, make them form insoluble, the infusible cancellated superpolymer of three-dimensional that has with polytype solidifying agent generation crosslinking reaction.Epoxy resin after the curing has good physical and chemical performance, and it has excellent bonding strength to the surface of metal and non-metallic material, and dielectric properties are good; The set shrinking percentage is little, the product size good stability, and hardness is high; Snappiness is better; To alkali and most of solvent-stable, thereby be widely used in national defence, national economy all departments, make purposes such as cast, dipping, lamination material, caking agent, coating.
The discharge ring epoxy resins is a kind of epoxy resin product, and it is to adopt dihydroxyphenyl propane and epoxy chloropropane (ECH) polycondensation under the basic catalyst effect to form linear polymer, and warp washes, filters, takes off that benzene obtains then.Dihydroxyphenyl propane and epoxy chloropropane are joined in the dissolution kettle, and heat temperature raising dissolves; Predissolve is sent in the pre-reactor after finishing, and adds a certain amount of liquid caustic soda and reacts; Reaction finishes to obtain the dichlorohydrine midbody, sends in the reaction kettle again, drips a certain amount of liquid caustic soda and carries out main reaction, and the water that reaction process constantly deviates to generate adds and deviates from remainder water and ECH after alkali finishes; The crude resin that obtains sent into take off in the ECH system, deviate from residual ECH; Send into then in the refining kettle, add solvent and liquid caustic soda and carry out refining reaction, and through obtaining resin solution after the washing; After resin solution filtered, carry out desolventizing, send into the finished product section then, allotment supply low bromine/yellow glue with or send the finished product jar to pack.
Need constantly the water that generates in the reaction kettle to be deviate from the base resin reaction process, contain 4.7% ECH in the water that reaction process is deviate from, must recycle; Fig. 1 is existing ECH recycle-water stripping system schema, and the water that reaction process is deviate from is collected in the receiving tank 1, delivers to stripping tower 3 tops with fresh feed pump; Feed steam at the bottom of the stripping Tata, through stripping, ECH gets into vapour phase with steam; After condensing surface 4 condensations, be recycled in the receiving tank 5, waste water is delivered to the processing of waste water workshop at the bottom of the stripping Tata.There are three drawbacks in this processing system: the one, and the stripping tower fluctuation of service; The 2nd, inlet amount is less than the minimum spray density of stripping tower, and is wetting out of condition, deviates from weak effect; The 3rd, stripping tower overhead condensation liquid reclaims technology and falls behind.
The utility model content
In order to solve above-mentioned problems in the prior art, the utility model provides a kind of recycle-water stripping system that contains epoxy chloropropane.It comprises charging stock tank, fresh feed pump, stripping tower, condensing surface, recycle pump, phase splitter, temperature transmitter, temperature regulator, fluid level transmitter, fluid level controller, interchanger, feed-pipe, return line, ECH pipe and upflow tube.
Charging stock tank and fresh feed pump link, and fresh feed pump connects with interchanger, and interchanger links through the cat head of feed pipe and stripping tower; At the bottom of the tower of stripping tower, be provided with recycle pump, recycle pump and interchanger link; Cat head at stripping tower is provided with condensing surface, and condensing surface links through return line and phase splitter, and phase splitter is provided with ECH pipe and upflow tube.
At the bottom of the tower of stripping tower, also be provided with temperature controlling system and tank level control system, temperature controlling system is made up of temperature transmitter and temperature regulator, and tank level control system is made up of fluid level transmitter and fluid level controller.
The utility model has following characteristics:
At first, the azeotropic because of ECH and water consists of ECH 75%, water 25%; Its phlegma can produce layering, and wherein the ECH phase composite is ECH98.5%, water 1.5%; Water is formed ECH4.7%, water 95.3%, and stripping tower overhead condensation liquid can pass through the phase splitter layering; ECH is recycled to the ECH jar through the ECH pipe, and water is crossed upflow tube and got back to again in the charging stock tank, repeats next circulation and handles.
Secondly, wastewater temperature reaches 102 ℃ at the bottom of the stripping Tata, and 30 ℃ of feeding temperatures; Interchanger of setting up at the bottom of the stripping Tata and recycle pump; Hot wastewater is sent into interchanger with recycle pump at the bottom of the stripping Tata, and after the heat exchange, a part merges entering stripping tower cat head with material; So can increase the inlet amount of stripping tower cat head, guarantee minimum spray density greater than stripping tower; Another part drains into the waste liquid workshop and handles.Meanwhile also can reach purpose of energy saving.
At last, at the bottom of stripping tower, set up temperature and automatic control of liquid level, temperature transmitter of setting up at the bottom of the stripping Tata and fluid level transmitter reach the temp autocontrolled and automatic control of liquid level at the bottom of the stripping Tata respectively.
In a word, the utility model has compared with prior art been optimized the recycle-water stripping system that contains epoxy chloropropane, realizes automatic production, has improved the epoxy chloropropane recovery, the save energy utilization.
Description of drawings
Fig. 1 is a kind of recycle-water stripping system that contains epoxy chloropropane in the prior art.In Fig. 1, the 1-charging stock tank; The 2-fresh feed pump; The 3-stripping tower; The 4-condensing surface; The 5-receiving tank.
Fig. 2 is a kind of recycle-water stripping system that contains epoxy chloropropane of the utility model.In Fig. 2, the 1-charging stock tank; The 2-fresh feed pump; The 3-stripping tower; The 4-condensing surface; The 6-recycle pump; The 7-phase splitter; The 81-temperature transmitter; The 82-temperature regulator; The 91-fluid level transmitter; The 92-fluid level controller; 10-interchanger, 11-feed-pipe, 12-return line, 13-ECH pipe and 14-upflow tube.
Embodiment
Below in conjunction with accompanying drawing, further describe the utility model through specific embodiment, but the utility model is not limited only to following examples.In the scope of the utility model or in the content that does not break away from the utility model, spirit and scope; The described a kind of recycle-water stripping system that contains epoxy chloropropane of the utility model is carried out to reduced scale or expansion, suitably improves, replaces the structure of building block and/or the annexation between the building block; Will become apparent to those skilled in the art that they all are regarded as is included within the utility model scope.
A kind of recycle-water stripping system that contains epoxy chloropropane of present embodiment.It comprises charging stock tank 1, fresh feed pump 2, stripping tower 3, condensing surface 4, recycle pump 6, phase splitter 7, temperature transmitter 81, temperature regulator 82, fluid level transmitter 91, fluid level controller 92, interchanger 10, feed-pipe 11, return line 12, ECH pipe 13 and upflow tube 14.
Charging stock tank 1 links with fresh feed pump 2, and fresh feed pump 2 connects with interchanger 10, and interchanger 10 links through the cat head of feed pipe 11 with stripping tower 3; At the bottom of the tower of stripping tower 3, be provided with recycle pump 6, recycle pump 6 links with interchanger 10; Cat head at stripping tower 3 is provided with condensing surface 4, and condensing surface 4 links through return line 12 and phase splitter 7, and phase splitter 7 is provided with ECH pipe 13 and upflow tube 14.
At the bottom of the tower of stripping tower 3, also be provided with temperature controlling system and tank level control system, temperature controlling system is made up of temperature transmitter 81 and temperature regulator 82, and tank level control system is made up of fluid level transmitter 91 and fluid level controller 92.
The utility model has following characteristics:
At first, the azeotropic because of ECH and water consists of ECH 75%, water 25%; Its phlegma can produce layering, and wherein the ECH phase composite is ECH98.5%, water 1.5%; Water is formed ECH4.7%, water 95.3%, and stripping tower overhead condensation liquid can pass through phase splitter 7 layerings; ECH is recycled to the ECH jar through ECH pipe 13, and water is crossed upflow tube and got back to again in the charging stock tank, repeats next circulation and handles.
Secondly, wastewater temperature reaches 102 ℃ at the bottom of the stripping Tata, and 30 ℃ of feeding temperatures; Interchanger of setting up at the bottom of the stripping Tata and recycle pump; Hot wastewater is sent into interchanger with recycle pump at the bottom of the stripping Tata, and after the heat exchange, a part merges entering stripping tower cat head with material; So can increase the inlet amount of stripping tower cat head, guarantee minimum spray density greater than stripping tower; Another part drains into the waste liquid workshop and handles.Meanwhile also can reach purpose of energy saving.
At last, at the bottom of stripping tower, set up temperature and automatic control of liquid level, the temperature transmitter set up at the bottom of the stripping Tata 81 and fluid level transmitter 91 reach the temp autocontrolled and automatic control of liquid level at the bottom of the stripping Tata respectively.
Claims (1)
1. recycle-water stripping system that contains epoxy chloropropane; It is characterized in that it comprises charging stock tank, fresh feed pump, stripping tower, condensing surface, recycle pump, phase splitter, temperature transmitter, temperature regulator, fluid level transmitter, fluid level controller, interchanger, feed-pipe, return line, ECH pipe and upflow tube; Charging stock tank and fresh feed pump link, and fresh feed pump connects with interchanger, and interchanger links through the cat head of feed pipe and stripping tower; At the bottom of the tower of stripping tower, be provided with recycle pump, recycle pump and interchanger link; Cat head at stripping tower is provided with condensing surface, and condensing surface links through return line and phase splitter, and phase splitter is provided with ECH pipe and upflow tube; At the bottom of the tower of stripping tower, also be provided with temperature transmitter, temperature regulator, fluid level transmitter and fluid level controller, temperature transmitter and temperature regulator are formed temperature controlling system, and fluid level transmitter and fluid level controller are formed tank level control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203467347U CN202246142U (en) | 2011-09-15 | 2011-09-15 | Steam stripping system for recycled water containing epoxy chloropropane (ECH) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203467347U CN202246142U (en) | 2011-09-15 | 2011-09-15 | Steam stripping system for recycled water containing epoxy chloropropane (ECH) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246142U true CN202246142U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203467347U Expired - Lifetime CN202246142U (en) | 2011-09-15 | 2011-09-15 | Steam stripping system for recycled water containing epoxy chloropropane (ECH) |
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| CN (1) | CN202246142U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169223A (en) * | 2012-03-27 | 2014-11-26 | 德诺拉工业有限公司 | Method and apparatus for the treatment of effluents from production plants of epoxy compounds |
| CN108530396A (en) * | 2018-06-12 | 2018-09-14 | 山东凯泰科技股份有限公司 | A kind of chloro propylene epoxidation method prepares the product purification method of epoxychloropropane |
| CN109134405A (en) * | 2018-07-27 | 2019-01-04 | 深圳市瑞升华科技股份有限公司 | A kind of waste heat recovery apparatus and technique using MVR technology |
| CN109351127A (en) * | 2016-12-13 | 2019-02-19 | 南通星辰合成材料有限公司 | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production |
| CN111632395A (en) * | 2020-06-29 | 2020-09-08 | 山东凯泰科技股份有限公司 | Process system for generating epoxy chloropropane through sodium method cyclization |
-
2011
- 2011-09-15 CN CN2011203467347U patent/CN202246142U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169223A (en) * | 2012-03-27 | 2014-11-26 | 德诺拉工业有限公司 | Method and apparatus for the treatment of effluents from production plants of epoxy compounds |
| CN109351127A (en) * | 2016-12-13 | 2019-02-19 | 南通星辰合成材料有限公司 | The exhaust gas treating method of ECH, nitrogen reuse are removed in epoxy resin production |
| CN108530396A (en) * | 2018-06-12 | 2018-09-14 | 山东凯泰科技股份有限公司 | A kind of chloro propylene epoxidation method prepares the product purification method of epoxychloropropane |
| CN109134405A (en) * | 2018-07-27 | 2019-01-04 | 深圳市瑞升华科技股份有限公司 | A kind of waste heat recovery apparatus and technique using MVR technology |
| CN109134405B (en) * | 2018-07-27 | 2022-05-17 | 深圳市瑞升华科技股份有限公司 | Waste heat recovery equipment and process utilizing MVR technology |
| CN111632395A (en) * | 2020-06-29 | 2020-09-08 | 山东凯泰科技股份有限公司 | Process system for generating epoxy chloropropane through sodium method cyclization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Guangjun Inventor before: Su Yinglong Inventor before: Chen Jinhui |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SU YINGLONG CHEN JINHUI TO: ZHANG GUANGJUN |
|
| CP03 | Change of name, title or address |
Address after: 511457 Tantou Management Zone, Nansha Economic and Technological Development Zone, Guangzhou, Guangdong Province Patentee after: Jiantao (Guangzhou) High-tech New Materials Co., Ltd. Address before: 511455 North 9 Huanshi Avenue, Nansha District, Guangzhou City, Guangdong Province Patentee before: Jiantao (Fanyunanshan) Petrochemical Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |