CN206896878U - A kind of device for being dehydrated ternary azeotrope by extracting rectifying - Google Patents
A kind of device for being dehydrated ternary azeotrope by extracting rectifying Download PDFInfo
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- CN206896878U CN206896878U CN201720504450.3U CN201720504450U CN206896878U CN 206896878 U CN206896878 U CN 206896878U CN 201720504450 U CN201720504450 U CN 201720504450U CN 206896878 U CN206896878 U CN 206896878U
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Abstract
A kind of device for being dehydrated ternary azeotrope by extracting rectifying, including configuration kettle, extraction tower, recovery tower；Kettle is configured, for placing extractant；Extraction tower, configuration bottom portion is connected, and be provided with ternary azeotrope material inlet, the water in raw material is sloughed for extractant, form binary system；Extraction tower reboiler is provided with the bottom of extraction tower, the first overhead condenser is provided with the top of extraction tower；Recovery tower, extraction tower tower reactor is connected, for reclaiming extractant；Recovery tower reboiler is provided with the bottom of recovery tower, the second overhead condenser is provided with the top of recovery tower.Effect of the present utility model：Device is simple and convenient to operate, and heat fully recycles, and energy consumption is low, and dewatering efficiency is high, is suitable for industrialized production.
Description
Technical field
The utility model is related to a kind of device for being dehydrated ternary azeotrope, it is more particularly to a kind of by extracting rectifying by three
The device of first azeotropic mixture dehydration, belongs to technical field of chemical separation.
Background technology
In numerous areas such as chemical industry, coal chemical industry, petrochemical industry, medication chemistry, biochemical industry and environmental protection, all can not
It avoid the need for separating various mixtures.Extractive distillation with salt is to contain extraction of the salt solvent as extracting rectifying
Agent, its theoretical foundation are that the salt effect of dissolved salt rectifying is theoretical and the solvent selectivity of extracting rectifying is theoretical.Salt effect is exactly in phase
Non-volatile salt is added in the two-phase system mutually balanced, changes mutual solubility and balance group between the boiling point of mixture, component
Into etc. so that the activity coefficient of each component changes, and then changes the relative volatility of each component, improves separating effect.Add
Salt extraction rectifying is due to containing salt in extractant, and change of the salt ion the relative volatility solution component is more than extraction
Change of the solvent the relative volatility solution component, i.e. salt effect are more than solvent effect, and this allows for extractive distillation with salt
Compared with traditional extraction rectifying, the dosage of extractant is greatly lowered, so as to reduce equipment investment and operating cost.
This method both improved relative volatility between separation component using salt effect, and it is molten to overcome traditional extraction rectifying
The shortcomings that agent dosage is big, efficiency is low, solvent recovery energy consumption is big, and because salt is dissolved in extractant, can returning with extractant
Receive and recycle, overcome salt in dissolved salt distillation process be difficult to reclaim, inconvenience conveying the deficiencies of, thus be easy to implement industrialization
Production.
Anhydrous binary system is prevalent in organic solvent and pharmaceutical industry, such as toluene-ethano system, benzene-ethanol body
System, hexamethylene-ethanol system etc., but aqueous ternary azeotrope is frequently resulted in actual production, it is therefore desirable to dehydration is made
Binary system.Wherein, the azeotropic point of toluene-ethano-water is 78.3 DEG C, and the azeotropic point of benzene-ethanol-water mixture is 64.9 DEG C,
The azeotropic point of hexamethylene-ethanol-water mixture is 62.39 DEG C.
Utility model content
The utility model be directed to actual production in needs, using extractive distillation with salt the advantages of, there is provided one kind passes through
The device that ternary azeotrope is dehydrated by extracting rectifying, it is mainly used in toluene-ethano-aqueous systems, benzene-ethanol-water system, hexamethylene
Alkane-ethanol-water system and other similar to system.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：It is a kind of by extracting rectifying by ternary azeotrope
The device of dehydration, including configuration kettle, extraction tower, recovery tower；
Kettle is configured, for placing extractant；
Extraction tower, configuration bottom portion is connected, and be provided with ternary azeotrope material inlet, sloughed for extractant in raw material
Water, formed binary system；Extraction tower reboiler is provided with the bottom of extraction tower, for heat tower reactor material, is formed in tower
The transmittance process of heat and matter, is provided with the first overhead condenser, for cooling tower top product at the top of extraction tower；
Recovery tower, extraction tower tower reactor is connected, for reclaiming extractant；Boiled again provided with recovery tower in the bottom of recovery tower
Device, for heat tower reactor material, the second overhead condenser is provided with the top of recovery tower, for cooling tower top steam.
The utility model completes the whole system of ternary azeotrope dehydration using some conventional equipments, simple to operate；
Water can be removed well.
Further, extractant is provided with the configuration kettle and adds mouth and salt addition mouth, the bottom of the configuration kettle is provided with extraction
Take agent discharging opening.
Further, cooling device is connected with the top of the configuration kettle, the cooling device is connected to receiving tank, receiving tank
It is connected to configure kettle.
It is using the above-mentioned further beneficial effect of technical scheme：Tower top extractant steam is carried out using cooling device cold
Solidifying, extractant liquid enters receiving tank, then passes back into configuration kettle, the remaining discharge in configuration bottom portion, reaches the mesh of purifying extractant
's.Extractant can be significantly reclaimed, it is economic and environment-friendly.
Further, the cooling device is the configuration kettle condenser and configuration kettle cooler of condenser or series connection.
It is using the above-mentioned further beneficial effect of technical scheme：High-temperature steam is condensed into liquid using kettle condenser is configured
Body, suitable temperature is being further cooled to by configuration kettle cooler.
Further, the bottom of the configuration kettle is provided with heater, and the heater is reboiler heating, coil pipe heating
Or chuck heating.
It is using the above-mentioned further beneficial effect of technical scheme：Extractant is heated, on the one hand can be to entering
The extractant heating of extraction tower, heating can also be done when purifying distillation extraction agent and is used, and the gasification for accelerating extractant rises, and enters
And it is cooled by the cooling device, reclaims, recycles.
Further, extractant heat exchanger is provided between the bottom of the configuration kettle and extraction tower, saline extraction agent is through heat exchange
Enter extraction tower afterwards；The ternary azeotrope material inlet is connected to raw material heat exchanger, and raw material enters extraction tower after heat exchange.
It is using the above-mentioned further beneficial effect of technical scheme：Control adds the raw material of extraction tower and the temperature of extractant
Degree so that raw material and extractant carry out extraction at appropriate temperatures.
Further, first overhead condenser is connected to extraction tower return tank, the output connection of extraction tower return tank one end
Extraction column overhead, ensures Matter Transfer balance in tower, other end output is connected to binary system storage tank；Second tower top is cold
Condenser is connected to recovery tower return tank, and the output of recovery tower return tank one end is connected to reclaim column overhead, ensures Matter Transfer in tower
Wastewater treatment working section is gone in balance, other end output.
It is using the above-mentioned further beneficial effect of technical scheme：The balance of extraction tower Ta Neire and matter can be balanced, simultaneously
Obtain more binary system.
Further, first overhead condenser is connected to extraction tower vacuum trap, and second overhead condenser connects
Connect recovery tower vacuum trap.
Further, the extraction tower vacuum trap is connected to extraction tower vacuum buffer tank, the recovery tower vacuum trapping
Device connects recovery tower vacuum buffer tank, and the tail gas of vacuum trap trapping enters vacuum buffer tank.
It is using the above-mentioned further beneficial effect of technical scheme：The uncooled tail gas to get off of condenser can be trapped rapidly,
Avoid fixed gas aggregation build-up of pressure excessive, take away do not coagulate tail gas in time, prevent from polluting environment.
Further, the steam condensation water outflow end of the extraction tower reboiler and recovery tower reboiler is connected to steam generation
Device, steam generator are connected to configure the bottom of kettle, the steam inflow end of extraction tower reboiler, the steam stream of recovery tower reboiler
Enter end or hot water thermal insulating equipment, the hot water circuit formed in whole device.
Beneficial effect using further technical scheme is：The technical scheme can form stable heating agent, refrigerant circulation system
System, heating institute calorific requirement can be saved.
In summary, device of the present utility model is simple and convenient to operate, and heat fully recycles, and energy consumption is low, dehydration effect
Rate is high, and operating cost and equipment cost are low, are suitable for industrialized production.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation that kettle is configured in the utility model embodiment 2；
Fig. 3 is the structural representation of the utility model embodiment 3；
Fig. 4 is the structural representation of the utility model embodiment 4.
Wherein, 1, configuration kettle；1-1, extractant add mouth；1-2, salt add mouth；1-3, extractant discharging opening；2nd, extract
Tower；3rd, recovery tower；4th, extraction tower reboiler；5th, the first overhead condenser；6th, recovery tower reboiler；7th, the second overhead condenser；
8th, kettle condenser is configured；9th, kettle cooler is configured；10th, receiving tank；11st, extractant heat exchanger；12nd, raw material heat exchanger；13rd, extract
Tower return tank；14th, binary system storage tank；15th, recovery tower return tank；16th, extraction tower vacuum trap；17th, recovery tower vacuum is caught
Storage；18th, extraction tower vacuum buffer tank；19th, recovery tower vacuum buffer tank；20th, steam generator.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
Embodiment 1
As shown in figure 1, a kind of device for being dehydrated ternary azeotrope by extracting rectifying, including configuration kettle 1, extraction tower 2,
Recovery tower 3；
Extractant is provided with configuration kettle 1 and adds mouth and salt addition mouth, configuration kettle 1 bottom is provided with extractant discharging opening, extracted
Agent discharging opening connects extraction tower 2, and extraction tower 2 is provided with ternary azeotrope material inlet；To configuration kettle 1 in add extractant and
Salt forms composite extractant, and composite extractant enters extraction tower 2 by extractant discharging opening, and ternary azeotrope also adds extraction tower
2；Extraction tower reboiler 4 is provided with the bottom of extraction tower 2, the first overhead condenser 5 is provided with the top of extraction tower 2；Extraction tower 2
Kettle material carries out extracting rectifying after being heated in tower, and the steam for rising to the binary system of tower top is condensed into liquid.
The tower reactor of extraction tower 2 connects recovery tower 3, and extractant enters recovery tower 3；Recovery tower is provided with the bottom of recovery tower 3 again
Device 6 is boiled, the second overhead condenser 7 is provided with the top of recovery tower 3；Kettle material is heated, lower boiling water and other impurities
Reach the tower top of recovery tower 3 and be condensed into liquid and go wastewater treatment working section, high boiling extractant stays in tower reactor and can return to configuration
Kettle recycles.
Embodiment 2
On the basis of embodiment 1, the top of configuration kettle 1 is connected with configuration kettle condenser 8 and configuration kettle cooler 9, matches somebody with somebody
Put kettle cooler 9 and be connected to receiving tank 10, receiving tank 10 is connected to configure kettle 1.The bottom of configuration kettle 1 is provided with heater, adds
Hot charging is set to steam heating, heat-conducting oil heating, reboiler heating, coil pipe heating.For distilling multiple extractant, filled by heating
Heating is put, extractant becomes steam and rises to the top of configuration kettle 1, and is condensed into liquid by configuration kettle condenser 8, then by matching somebody with somebody
Put kettle cooler 9 to cool down, return to configuration kettle 1 and reuse, and configure the remaining discharge in the bottom of kettle 1, the knot of configuration kettle 1 of the present embodiment
Structure is referring to Fig. 2, and the structure of extraction tower 2 and recovery tower 3 is the same as embodiment 1.
Embodiment 3
As shown in figure 3, on the basis of embodiment 2, configure and extractant heat exchange is provided between the bottom of kettle 1 and extraction tower 2
Device 11；Ternary azeotrope material inlet is connected to raw material heat exchanger 12.First overhead condenser 5 is connected to extraction tower return tank
13, the output of the one end of extraction tower return tank 13 is connected to the tower top of extraction tower 2, and other end output is connected to binary system storage tank 14；The
Two overhead condensers 7 are connected to recovery tower return tank 15, and the output of recovery tower return tank one end is connected to the tower top of recovery tower 3, another
Wastewater treatment working section is gone in end output.
Embodiment 4
As shown in figure 4, not showing the structure of configuration kettle in figure, the structure of kettle and class in embodiment 1 or embodiment 2 are configured
Seemingly, here is omitted, and on the basis of embodiment 3, the first overhead condenser 5 is connected to extraction tower vacuum trap 16, the
Two overhead condensers 7 connection recovery tower vacuum trap 17.Extraction tower vacuum trap 16 is connected to extraction tower vacuum buffer tank
18, recovery tower vacuum trap 17 connects recovery tower vacuum buffer tank 19.The steaming of extraction tower reboiler 4 and recovery tower reboiler 6
Vapor condensed water outflow end is connected to steam generator 20, and steam generator 20 is connected to configure the bottom of kettle 1, extraction tower reboiler 4
Steam flows into end, the steam of recovery tower reboiler 6 flows into end or hot water thermal insulating equipment.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (10)
1. a kind of device for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that including configuration kettle, extraction tower, return
Receive tower；The extraction tower connects configuration bottom portion, extraction tower reboiler is provided with the bottom of extraction tower, at the top of extraction tower
Provided with the first overhead condenser；The recovery tower connects extraction tower tower reactor, and recovery tower reboiler is provided with the bottom of recovery tower,
The second overhead condenser is provided with the top of recovery tower.
2. the device according to claim 1 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described to match somebody with somebody
Put and extractant addition mouth and salt addition mouth are provided with kettle, the bottom of the configuration kettle is provided with extractant discharging opening.
3. the device according to claim 2 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described to match somebody with somebody
Put and cooling device is connected with the top of kettle, the cooling device is connected to receiving tank, and receiving tank is connected to configure kettle.
4. the device according to claim 3 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described cold
But device is the configuration kettle condenser and configuration kettle cooler of condenser or series connection.
5. according to any described devices for being dehydrated ternary azeotrope by extracting rectifying of claim 1-3, it is characterised in that
The bottom of the configuration kettle is provided with heater, and the heater is reboiler heating, coil pipe heating or chuck heating.
6. the device according to claim 1 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described to match somebody with somebody
Put and extractant heat exchanger is provided between the bottom of kettle and extraction tower；The ternary azeotrope material inlet is connected to raw material heat exchange
Device；
7. the device according to claim 1 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described
One overhead condenser is connected to extraction tower return tank, and the output of extraction tower return tank one end is connected to extract column overhead, and the other end is defeated
Go out to be connected to binary system storage tank；Second overhead condenser is connected to recovery tower return tank, and recovery tower return tank one end is defeated
Go out to be connected to reclaim column overhead, wastewater treatment working section is gone in other end output.
8. the device for being dehydrated ternary azeotrope by extracting rectifying according to claim 1 or 7, it is characterised in that institute
State the first overhead condenser and be connected to extraction tower vacuum trap, the second overhead condenser connection recovery tower vacuum trapping
Device.
9. the device according to claim 8 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that the extraction
Tower vacuum trap is taken to be connected to extraction tower vacuum buffer tank, the recovery tower vacuum trap connects recovery tower vacuum buffer
Tank.
10. the device according to claim 1 for being dehydrated ternary azeotrope by extracting rectifying, it is characterised in that described
The steam condensation water outflow end of extraction tower reboiler and recovery tower reboiler is connected to steam generator, and steam generator is connected to match somebody with somebody
Put bottom portion, the steam of extraction tower reboiler flows into end, the steam of recovery tower reboiler flows into end or hot water thermal insulating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504450.3U CN206896878U (en) | 2017-05-08 | 2017-05-08 | A kind of device for being dehydrated ternary azeotrope by extracting rectifying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720504450.3U CN206896878U (en) | 2017-05-08 | 2017-05-08 | A kind of device for being dehydrated ternary azeotrope by extracting rectifying |
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| CN206896878U true CN206896878U (en) | 2018-01-19 |
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| CN201720504450.3U Active CN206896878U (en) | 2017-05-08 | 2017-05-08 | A kind of device for being dehydrated ternary azeotrope by extracting rectifying |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905256A (en) * | 2018-08-01 | 2018-11-30 | 清水湾Chdm科技有限公司 | A kind of multitower rectifying and dewatering power-economizing method and device |
| CN115463452A (en) * | 2022-08-19 | 2022-12-13 | 江西心连心化学工业有限公司 | Separation system capable of improving efficiency and reducing loss |
-
2017
- 2017-05-08 CN CN201720504450.3U patent/CN206896878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905256A (en) * | 2018-08-01 | 2018-11-30 | 清水湾Chdm科技有限公司 | A kind of multitower rectifying and dewatering power-economizing method and device |
| CN115463452A (en) * | 2022-08-19 | 2022-12-13 | 江西心连心化学工业有限公司 | Separation system capable of improving efficiency and reducing loss |
| CN115463452B (en) * | 2022-08-19 | 2023-10-20 | 江西心连心化学工业有限公司 | Separation system capable of improving efficiency and reducing loss |
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