CN208898766U - A kind of epoxide resin reactive diluent methylbenzene recycling system - Google Patents
A kind of epoxide resin reactive diluent methylbenzene recycling system Download PDFInfo
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- CN208898766U CN208898766U CN201821579058.6U CN201821579058U CN208898766U CN 208898766 U CN208898766 U CN 208898766U CN 201821579058 U CN201821579058 U CN 201821579058U CN 208898766 U CN208898766 U CN 208898766U
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Abstract
The utility model discloses a kind of epoxide resin reactive diluent methylbenzene recycling systems, including mutually exporting the rectifying still to connect with washing kettle washing oil, distilling filled tower is arranged in the top of rectifying still, the bottom of distilling filled tower is provided with first material refluxing opening, the top gas outlet of distilling filled tower is connected with the first condenser, discharge port connection the first phase-splitter of setting of first condenser, the bottom of first phase-splitter is connected with oil water separator, and the bottom of the first phase-splitter also sets up second material refluxing opening；The water phase outlet of oil water separator is connected with water groove, and water groove is connected with vacuum water groove and water measuring tank；Mutually outlet is connected with toluene settling tank to the oil of separator.The utility model can effectively solve the problem that toluene level is high in product existing for existing epoxide resin reactive diluent methylbenzene recycling system, and toluene loss is big, and the vacuum distillation time is long, and energy consumption is high, and low-boiling-point substance is had in toluene, needs to refine the problem of could using.
Description
Technical field
The utility model relates to a kind of epoxide resin reactive diluent methylbenzene recycling systems.
Background technique
In the production of epoxide resin reactive diluent, the viscosity of system is reduced as solvent usually using toluene, is promoted
Then the progress of reaction, and enhancing operating characteristics in distillation process, recycle toluene by way of normal pressure and negative pressure, and
Back to being recycled in system.
Common toluene recovery mode: air-distillation opens vacuum system, under condition of negative pressure when toluene discharging is slower
Deviate from remaining toluene, to guarantee that toluene needs significantly to extend vacuum in lower range, such as less than 300ppm in product
Distillation time has the following disadvantages: that 1. toluene level is high, and 2. toluene loses big (general 50kg/t product), when being 3. evaporated in vacuo
Between it is long, energy consumption is high, 4. in toluene have low-boiling-point substance, needing to refine could use.
Utility model content
The purpose of the utility model is to provide a kind of epoxide resin reactive diluent methylbenzene recycling systems, solve existing ring
Toluene level is high in product existing for oxygen resin reactive diluents methylbenzene recycling system, and toluene loss is big, and the vacuum distillation time is long,
Energy consumption is high, and low-boiling-point substance is had in toluene, needs to refine the problem of could using.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of epoxide resin reactive diluent toluene
Recovery system is provided with and its steam (vapor) outlet above rectifying still including mutually exporting the rectifying still to connect with washing kettle washing oil
Connected distilling filled tower, the bottom of distilling filled tower are provided with the first material refluxing opening being connected to rectifying still pipeline, rectifying
The top gas outlet of packed tower is connected with the first condenser, and the first phase-splitter is arranged in the discharge port connection of the first condenser,
The bottom of first phase-splitter is connected with oil water separator, and the bottom of the first phase-splitter is additionally provided with connection distilling filled tower
Second material refluxing opening；The water phase outlet of oil water separator is connected with water groove, water groove be connected with vacuum water by
Slot and water measuring tank；Mutually outlet is connected with toluene settling tank to the oil of separator；Plug-in type steaming is additionally provided on rectifying still
Steam pipe, the input end and boiler station steam (vapor) outlet of plug-in steam pipe connect.
Further, further include circulation water station and drain sump, be provided with coil pipe in drain sump, coil pipe and boiler station steam go out
Mouth is connected, and the connected recirculated water import and export of circulation water station is provided on drain sump, and finished product is arranged in the connection of drain sump bottom discharge port
Filtering tank.
It further, further include 7 DEG C of cooling water generators, the upper end port of the first phase-splitter is connected with the second condensation
Device, the entery and delivery port of the second condenser and 7 DEG C of cooling water generators are connected, and the discharge port of the second condenser is provided with second point
Phase device.
Further, further include vacuum pump set and coupled vacuum sink, the outlet at bottom of vacuum sink and and by
The top inlet of sink is connected, and is also connected at the top of vacuum sink and is provided with third condenser, the entery and delivery port of third condenser
It is connected with 7 DEG C of cooling water generators, outlet is connected with drain sump.
In order to guarantee the adequacy of distillation, more plug-in steam pipes, bottom, middle part, top are provided on rectifying still
It is provided with the plug-in steam pipe being connected with boiler station.
The utility model has the beneficial effects that distillation still is changed to rectifying still, one section of distilling filled tower is installed additional, because of toluene and produce
Product boiling point difference is larger, and distilling filled tower is equivalent to 6~8 blocks of theoretical trays；Plug-in steam pipe is connect, in the close knot of air-distillation
Shu Shi opens plug-in steam pipe valve, adjusts import size, using steam direct heating material, since water and toluene can shapes
At azeotropic mixture, toluene can be taken out of with water；The toluene and water condensation by mixing liquid distilled out, is separated, lower water by oil water separator
It returns to washing procedure to use, upper toluene can directly return to use；Increase by 1 dehydrating kettle, with steam zone toluene at the end of, by
It in remaining more water, can be transferred in individual dehydrating kettle, vacuum distillation dehydration.It is few with toluene loss, under unit consumption
45kg/t product drops；Remaining toluene is low in product, it might even be possible to reach within 10ppm；Energy consumption reduces, and saves power consumption
150Kw.h/t product；The advantages of obtained toluene is not needed to re-refine, can directly be used effectively solves existing asphalt mixtures modified by epoxy resin
Toluene level is high in product existing for rouge reactive diluent methylbenzene recycling system, and toluene loss is big, and the vacuum distillation time is long, energy consumption
Greatly, low-boiling-point substance is had in toluene, needs to refine the problem of could using.
Below with reference to drawings and examples, the utility model is described in detail.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model.
In figure, 1, vacuum pump set, 2, circulation water station, 3,7 DEG C of cooling water generators, 4, boiler station, 5, washing kettle, 6, rectifying
Kettle, 7, distilling filled tower, the 8, first condenser, the 9, second condenser, the 10, first phase-splitter, the 11, second phase-splitter, 12, grease
Separator, 13, water groove, 14, vacuum sink, 15, toluene settling tank, 16, third condenser, 17, drain sump, 18, finished product mistake
Filter tank.
Specific embodiment
Embodiment, a kind of epoxide resin reactive diluent methylbenzene recycling system as shown in Figure 1, including washed with washing kettle 5
Oil mutually exports the rectifying still 6 to connect, and the top of rectifying still 6 is provided with the distilling filled tower 7 being connected with its steam (vapor) outlet, and rectifying is filled out
The bottom of material tower 7 is provided with the first material refluxing opening being connected to 6 pipeline of rectifying still, and the top gas outlet of distilling filled tower 7 connects
It connects and is provided with the first condenser 8, discharge port connection the first phase-splitter 10 of setting of the first condenser 8, the bottom of the first phase-splitter 10
Portion is connected with oil water separator 12, and the bottom of the first phase-splitter 10 is additionally provided with the second material of connection distilling filled tower 7
Refluxing opening；The water phase outlet of oil water separator 12 is connected with water groove 13, and water groove 13 is connected with vacuum water groove
13 and water measuring tank；Mutually outlet is connected with toluene settling tank 15 to the oil of separator；Plug-in type is additionally provided on rectifying still 6
Steam pipe, the input end and 4 steam (vapor) outlet of boiler station of plug-in steam pipe connect.
This epoxide resin reactive diluent methylbenzene recycling system further includes recycling water station 2 and drain sump 17, in drain sump 17
Be provided with coil pipe, coil pipe is connected with 4 steam (vapor) outlet of boiler station, be provided on drain sump 17 the connected recirculated water of circulation water station 2 into,
Outlet, 17 bottom discharge port of drain sump connection setting finished product filtering tank 18.
This epoxide resin reactive diluent methylbenzene recycling system further includes 7 DEG C of cooling water generators 3, the first phase-splitter 10
Upper end port is connected with the second condenser 9, and the entery and delivery port of the second condenser 9 and 7 DEG C of cooling water generators 3 are connected, the
The discharge port of two condensers 9 is provided with the second phase-splitter 11.
This epoxide resin reactive diluent methylbenzene recycling system further includes vacuum pump set 1 and coupled vacuum sink
14, the outlet at bottom of vacuum sink 14 is connected with the top inlet with water reception tank, and the top of vacuum sink 14, which is also connected with, to be provided with
Third condenser 16, the entery and delivery port of third condenser 16 and 7 DEG C of cooling water generators 3 are connected, outlet and 17 phase of drain sump
Even.
More plug-in steam pipes are provided on rectifying still 6, bottom, middle part, top are provided with to be connected with boiler station 4
Plug-in steam pipe.
Principle explanation:
In atmospheric conditions, the boiling point of water is 100 DEG C, and the boiling point of toluene is 110 DEG C, but can be total under the two certain proportion
Boiling, azeotropic point are 84.1 DEG C, toluene 80.8% in constituent, water 19.2%.
Epoxy active diluent in process of production, can be using toluene as solvent, in last procedure of production: by first
Benzene distillation recycling, and recycle toluene be easy have a small amount of product, if direct reuse, wherein the product contained will continue to
Other raw materials chemically react, and will ultimately result in unstable product quality.
For this problem being easy to appear in production, during being distilled to recover toluene, when most of toluene recovery is complete
Bi Hou opens valve, vapor is added from the insertion tube in kettle, can be with the principle of azeotropic, with water azeotropic according to toluene and water
Take remaining toluene out of；Meanwhile to prevent that distillation still is transformed into rectifying still with product in the toluene steamed, that is, increase by one
Section rectifying column, even product is taken out of by the toluene vapor of foam-like, since its boiling point is higher, can also cool down in rectifying column,
It turns again in kettle, reduces the loss of product.Finally, closing the water vapour valve of insertion tube in kettle after toluene recovery
Door opens vacuum pump, a small amount of water that removing is generated by vapor under condition of negative pressure.
The mixture of water and toluene azeotropic, after condenser is cooling, into the first phase-splitter, after precipitation, water and toluene
AUTOMATIC ZONING, the toluene on upper layer enter the second phase-splitter, staticly settle again, and it is spare that upper toluene is recovered into tank, two split-phases
The water of Qi Zhong lower layer returns in production process as slurry, while wherein remaining a small amount of toluene also returns to system
In, avoid outlet pollution on the environment.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not
It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out
Improvement；Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this
Within the protection scope of utility model.
Claims (5)
1. a kind of epoxide resin reactive diluent methylbenzene recycling system, it is characterised in that: including mutually being exported with washing kettle washing oil
The rectifying still to connect is provided with the distilling filled tower being connected with its steam (vapor) outlet, the bottom of distilling filled tower above rectifying still
It is provided with the first material refluxing opening being connected to rectifying still pipeline, it is cold that the top gas outlet of distilling filled tower is connected with first
Condenser, discharge port connection the first phase-splitter of setting of the first condenser, the bottom of the first phase-splitter is connected with water-oil separating
Device, the bottom of the first phase-splitter are additionally provided with the second material refluxing opening of connection distilling filled tower；The water phase of oil water separator goes out
Mouth is connected with water groove, and water groove is connected with vacuum water groove and water measuring tank；Mutually outlet connects the oil of separator
It connects and is provided with toluene settling tank；Plug-in steam pipe, the input end of plug-in steam pipe and boiler station are additionally provided on rectifying still
Steam (vapor) outlet connects.
2. epoxide resin reactive diluent methylbenzene recycling system according to claim 1, it is characterised in that: further include circulation
Water station and drain sump are provided with coil pipe in drain sump, and coil pipe is connected with boiler station steam (vapor) outlet, and recirculated water is provided on drain sump
It stands connected recirculated water import and export, drain sump bottom discharge port connection setting finished product filtering tank.
3. epoxide resin reactive diluent methylbenzene recycling system according to claim 1 or 2, it is characterised in that: further include 7
DEG C cooling water generator, the upper end port of the first phase-splitter are connected with the second condenser, the entery and delivery port of the second condenser
It is connected with 7 DEG C of cooling water generators, the discharge port of the second condenser is provided with the second phase-splitter.
4. epoxide resin reactive diluent methylbenzene recycling system according to claim 3, it is characterised in that: further include vacuum
Unit and coupled vacuum sink, the outlet at bottom of vacuum sink are connected with the top inlet of water reception tank, vacuum sink
Top, which is also connected with, is provided with third condenser, and the entery and delivery port of third condenser and 7 DEG C of cooling water generators are connected, outlet
It is connected with drain sump.
5. epoxide resin reactive diluent methylbenzene recycling system according to claim 4, it is characterised in that: set on rectifying still
More plug-in steam pipes are equipped with, bottom, middle part, top are provided with the plug-in steam pipe being connected with boiler station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821579058.6U CN208898766U (en) | 2018-09-25 | 2018-09-25 | A kind of epoxide resin reactive diluent methylbenzene recycling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821579058.6U CN208898766U (en) | 2018-09-25 | 2018-09-25 | A kind of epoxide resin reactive diluent methylbenzene recycling system |
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| CN208898766U true CN208898766U (en) | 2019-05-24 |
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| CN201821579058.6U Active CN208898766U (en) | 2018-09-25 | 2018-09-25 | A kind of epoxide resin reactive diluent methylbenzene recycling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398612A (en) * | 2021-05-31 | 2021-09-17 | 广东同宇新材料有限公司 | Phenolic epoxy resin solvent recovery processing system and method and application thereof |
-
2018
- 2018-09-25 CN CN201821579058.6U patent/CN208898766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113398612A (en) * | 2021-05-31 | 2021-09-17 | 广东同宇新材料有限公司 | Phenolic epoxy resin solvent recovery processing system and method and application thereof |
| CN113398612B (en) * | 2021-05-31 | 2023-02-21 | 同宇新材料(广东)股份有限公司 | Phenolic epoxy resin solvent recovery processing system and method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191209 Address after: No. 16 Zijin Road, Circular Economy Park, Huizhou District, Huangshan City, Anhui Province Patentee after: Anhui Xinyuan Chemical Co., Ltd. Address before: No. 16 Zijin Road, Circular Economy Park, Huizhou District, Huangshan City, Anhui Province Co-patentee before: Anhui Hengyuan New Material Co. Ltd. Patentee before: Anhui Xinyuan Chemical Co., Ltd. Co-patentee before: Lianyungang Zhiyuan Chemical Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 245000 No.16 Zijin Road, Circular Economy Park, Huizhou District, Huangshan City, Anhui Province Patentee after: Anhui Xinyuan Technology Co., Ltd Address before: 245000 No.16 Zijin Road, Circular Economy Park, Huizhou District, Huangshan City, Anhui Province Patentee before: ANHUI XINYUAN CHEMICAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |