CN205990356U - A kind of novel distillation system - Google Patents
A kind of novel distillation system Download PDFInfo
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- CN205990356U CN205990356U CN201621020588.8U CN201621020588U CN205990356U CN 205990356 U CN205990356 U CN 205990356U CN 201621020588 U CN201621020588 U CN 201621020588U CN 205990356 U CN205990356 U CN 205990356U
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Abstract
A kind of novel distillation system, it is adaptable to there is not the component of azeotropic or association phenomenon between two kinds of components, easily thermally decomposes in order to solve such material product in distillation process, the low problem of purity, including dehydration workshop section, product purification workshop section and deacidification workshop section.Described dehydration workshop section includes dehydrating tower, and dehydration column overhead, coupling reboiler and the first return tank are sequentially connected；Described product purification workshop section includes product tower and product purification tower, described product tower is connected with coupling reboiler, product column overhead is connected with the second return tank, described product purification tower is connected with the 3rd reboiler, product purification column overhead is connected with the 3rd return tank, and product purification tower rectifying section is connected with transfer tank；Described deacidification workshop section includes neutralizing evaporating kettle and recovery tower, and neutralization evaporating kettle one end is connected with residual liquid transfer tank, and one end is connected with recovery tower, and recovery tower, reflux ratio controller and raw material pans are sequentially connected.
Description
Technical field
This utility model is related to a kind of novel distillation system, and belong to material isolates and purifies field.
Background technology
DMAC/DMF/DMSO (dimethyl acetylamide/N, N- dimethyl formyl/dimethyl sulfoxide), can dissolve multiple chemical combination
Thing, can be dissolved each other completely with water, ether, ketone, ester etc., have heat stability height, not facile hydrolysiss, the low feature of corrosivity, extensively apply
In PETROLEUM PROCESSING and organic synthesiss industry., DMAC is sub- to various kinds of resin, especially polyurethane resin, polyamides taking DMAC as a example
Polyimide resin has good solvability, is mainly used as heat-resisting synthetic fibers, plastic sheeting, coating, medicine, acrylonitrile spinning
Solvent.In organic synthesiss, DMAC is fabulous catalyst, and the reaction such as cyclisation, halogenation, cyaniding, alkylation and dehydrogenation can be made to add
Speed, and primary product yield can be improved.In partly medicine and pesticide producing, DMAC may also be employed as solvent or co-catalysis
Agent, compared with conventional organic solvents, to the effect of being improved of product quality and yield.But produce big during production and application
The waste water containing DMAC for the amount, direct discharge can cause very big impact to water quality environment, and the health of harm people, so carry out DMAC
The recovery of waste liquid and process all have critically important meaning for aspects such as the production costs carrying out environmental conservation and reduction enterprise
Justice.
In traditional handicraft, the removing of moisture can be designed as a tower process, if but in raw material, moisture is higher, expect
Qualified DMAC/DMF/DMSO product, it is desirable to whole technique is in recovered water timesharing, needs suitably to increase reflux ratio, and water
Latent heat of vaporization ratio is larger, and in the case of increasing reflux ratio, energy consumption also can accordingly increase.
Utility model content
This utility model in view of the shortcomings of the prior art, provides a kind of novel distillation system it is adaptable to two kinds of components
Between there is not the component of azeotropic or association phenomenon, such as DMF and water, DMAC and water, the thing system of DMSO and water, and other are similar
The separation of thing system.
The technical scheme that this utility model solves above-mentioned technical problem is as follows：A kind of novel distillation system, including dehydration work
Section, product purification workshop section and deacidification workshop section：
Described dehydration workshop section includes dehydrating tower, and dehydration column overhead is connected with coupling reboiler, couples reboiler and first time
Stream tank is connected, and first return tank one end connects dehydrating tower, technique water storage tank outside the connection battery limit (BL) of one end；
Described product purification workshop section includes product tower and product purification tower, described product tower tower reactor with couple reboiler phase
Even, product column overhead is connected with the second return tank, and second return tank one end connects product tower, fresh water (FW) storage outside the connection battery limit (BL) of one end
Tank；Described product purification tower is connected with the 3rd reboiler, is provided with residual liquid transfer tank, product purification tower at the 3rd reboiler lower tube box
Tower top is connected with the 3rd return tank, and the 3rd return tank one end connects product purification column overhead, and one end connects head tank；Product purification
Tower rectifying section is connected with product transfer tank, and product transfer tank connects product storage tank,
Described deacidification workshop section includes neutralizing evaporating kettle and recovery tower, and neutralization evaporating kettle one end is connected with residual liquid transfer tank, and one
End is connected with recovery tower, and recovery tower is connected with reflux ratio controller, and reflux ratio controller is connected with raw material pans.
Further, dehydrating tower tower reactor is provided with the first reboiler.
Further, it is sequentially connected heat exchanger, the first condenser between coupling reboiler and the first return tank.
Further, it is provided with the second condenser between product column overhead and the second return tank.
Further, it is provided with the 3rd condenser between product purification column overhead and the 3rd return tank.
Further, it is provided with the 4th condenser between recovery column overhead and reflux ratio controller.
Further, neutralization evaporating kettle is provided with and joins alkali kettle.
Further, raw material pans are provided with raw material storage tank.
The beneficial effects of the utility model are：
1) energy-conservation, this covering device employs two tower economic benefits and social benefits list rectification under vacuum systems, steams the tower top of dehydrating tower in systems
Vapour is used for, to the vaporizer heating of evaporator, being equipped with waste heat recovery apparatus simultaneously, making device more energy-conservation, its consumption of cooling-water
To reduce, fully demonstrate energy-saving feature.
This covering device designs the DMAC waste liquid that input concentration is about 10% (wt%), and production capacity is 1.5t/h, in work
In the range of skill allows, DMAC concentration is higher, then consume energy fewer, namely treating capacity can accordingly improve, and vice versa.In not syngenesis
Under the conditions of product, DMAC content is different, due to feeding off-design point, the disposal ability of this device, the response rate, product quality, tower top
Water quality also will have different changes, therefore should optimize operation aborning, make indices up to standard, and energy consumption is relatively low.
2) Disassembling Products are suppressed
Taking DMAC as a example, pure DMAC stable in properties, but under the situation that Determining Micro Acid, alkali exist, decomposition rate is accelerated, temperature
Higher, decomposition rate is faster.Therefore rectification under vacuum reduces operation temperature and can suppress to decompose, and can improve the quality of product.
3) reduce secondary pollution
Due to inhibiting the decomposition of product, therefore overhead water contains catabolite and reduces, and decreases the generation of secondary pollution.
4) alleviate the corrosion of equipment
Such as, the analyte acetic acid of DMAC is corrosive to equipment, reduces temperature and can mitigate the corrosion to equipment.
5) reduce three waste discharge
Through neutralisation treatment after the product containing acetic acid of product tower tower reactor extraction is collected, the Product recycling in residual liquid is returned
Come, improve the comprehensive yield of product.
6) improve product purity
Electronic grade product can be obtained.Product purity >=99.99% (wt%), water 50PPm (wt%)；Acid number 10PPm；Electricity
Conductance≤0.5 μ s/cm.
Brief description
Fig. 1 is dehydration workshop section and the product purification workshop section structural representation of novel distillation system；
Fig. 2 is the deacidification workshop section structural representation of novel distillation system.
Wherein, 1, dehydrating tower；3rd, heat exchanger；4th, the first condenser；5th, the first return tank；6th, connect fresh water (FW) storage outside battery limit (BL)
Tank；7th, product tower；8th, product purification tower；9th, couple reboiler；10th, the second condenser；11st, the second return tank；12nd, connect battery limit (BL)
Outer technique water storage tank；13rd, the 3rd reboiler；14th, the 3rd condenser；15th, the 3rd return tank；16th, head tank；17th, product transfer
Tank；18th, product storage tank；19th, neutralize evaporating kettle；20th, residual liquid transfer tank；21st, the 4th condenser；22nd, raw material pans；23rd,
One reboiler；24th, join alkali kettle；25th, reflux ratio controller；26th, connect raw material storage tank；27th, recovery tower.
Specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example is served only for explaining this practicality
New, it is not intended to limit scope of the present utility model.
A kind of novel distillation system, including dehydration workshop section, product purification workshop section and deacidification workshop section：
Described dehydration workshop section includes dehydrating tower 1, and dehydrating tower 1 tower reactor is provided with the first reboiler 23, dehydrating tower 1 tower top with couple
Reboiler 9 is connected, and coupling reboiler 9, heat exchanger 3, the first condenser 4 are sequentially connected with the first return tank 5, the first return tank 5
One end connects dehydrating tower 1, technique water storage tank 6 outside the connection battery limit (BL) of one end；
Described product purification workshop section includes product tower 7 and product purification tower 8, described product tower 7 tower reactor with couple reboiler 9
It is connected, product tower 7 tower top, the second condenser 10 and the second return tank 11 are sequentially connected, the second return tank 11 one end connects product
Tower 7, technique water storage tank 12 outside the connection battery limit (BL) of one end；Described product purification tower 8 is connected with the 3rd reboiler 13, the 3rd reboiler 13
It is provided with residual liquid transfer tank 20, product purification tower 8 tower top, the 3rd condenser 14 are sequentially connected with the 3rd return tank 15 at lower tube box,
3rd return tank 15 one end connects product purification tower 8, and one end connects head tank 16；Product purification tower 8 rectifying section and product transfer
Tank 17 is connected, and product transfer tank 17 connects product storage tank 18；
Described deacidification workshop section includes neutralizing evaporating kettle 19 and recovery tower 27, the entrance of neutralization evaporating kettle 19 with join alkali kettle 24
Outlet is connected, and neutralization evaporating kettle 19 one end is connected with the outlet of residual liquid transfer tank 20, and one end is connected with recovery tower 27 bottom of towe,
Recovery tower 27 tower top, condenser 21, reflux ratio controller 25, raw material pans 22 and raw material storage tank 26 are sequentially connected.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvement made etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (8)
1. a kind of novel distillation system, including dehydration workshop section, product purification workshop section and deacidification workshop section it is characterised in that：
Described dehydration workshop section includes dehydrating tower, and dehydration column overhead is connected with coupling reboiler, and coupling reboiler is connected with first time
Stream tank, first return tank one end connects dehydrating tower, technique water storage tank outside the connection battery limit (BL) of one end；
Described product purification workshop section includes product tower and product purification tower, and described product tower tower reactor is connected with coupling reboiler, produces
Product column overhead is connected with the second return tank, and second return tank one end connects product tower, technique water storage tank outside the connection battery limit (BL) of one end；Institute
State product purification tower and be connected with the 3rd reboiler, at the 3rd reboiler lower tube box, be provided with residual liquid transfer tank, product purification column overhead
It is connected with the 3rd return tank, the 3rd return tank one end connects product purification column overhead, and one end connects head tank；Product purification tower essence
Evaporate section and be connected with product transfer tank, product transfer tank is connected with product storage tank；
Described deacidification workshop section includes neutralizing evaporating kettle and recovery tower, and neutralization evaporating kettle one end is connected with residual liquid transfer tank, one end and
Recovery tower is connected, and recovery tower is connected with reflux ratio controller, and reflux ratio controller is connected with raw material pans.
2. a kind of novel distillation system according to claim 1 it is characterised in that：Dehydrating tower tower reactor is provided with first and boils
Device.
3. a kind of novel distillation system according to claim 1 it is characterised in that：Coupling reboiler and the first return tank it
Between be sequentially connected heat exchanger, the first condenser.
4. a kind of novel distillation system according to claim 1 it is characterised in that：In product column overhead and the second return tank
Between be provided with the second condenser.
5. a kind of novel distillation system according to claim 1 it is characterised in that：Product purification column overhead with the 3rd time
It is provided with the 3rd condenser between stream tank.
6. a kind of novel distillation system according to claim 1 it is characterised in that：Reclaiming column overhead and control of reflux ratio
It is provided with the 4th condenser between device.
7. a kind of novel distillation system according to claim 1 it is characterised in that：Neutralization evaporating kettle is provided with joins alkali kettle.
8. a kind of novel distillation system according to claim 1 it is characterised in that：Raw material pans are provided with raw material storage
Tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020588.8U CN205990356U (en) | 2016-08-31 | 2016-08-31 | A kind of novel distillation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621020588.8U CN205990356U (en) | 2016-08-31 | 2016-08-31 | A kind of novel distillation system |
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| Publication Number | Publication Date |
|---|---|
| CN205990356U true CN205990356U (en) | 2017-03-01 |
Family
ID=58105375
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621020588.8U Active CN205990356U (en) | 2016-08-31 | 2016-08-31 | A kind of novel distillation system |
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| CN (1) | CN205990356U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759832A (en) * | 2019-11-16 | 2020-02-07 | 安徽金禾实业股份有限公司 | DMAC (dimethylacetamide) residual liquid recycling device and method |
| CN113274753A (en) * | 2021-05-13 | 2021-08-20 | 新沂市永诚化工有限公司 | Solvent rectification device in production process of cloquintocet-mexyl and using method thereof |
-
2016
- 2016-08-31 CN CN201621020588.8U patent/CN205990356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759832A (en) * | 2019-11-16 | 2020-02-07 | 安徽金禾实业股份有限公司 | DMAC (dimethylacetamide) residual liquid recycling device and method |
| CN113274753A (en) * | 2021-05-13 | 2021-08-20 | 新沂市永诚化工有限公司 | Solvent rectification device in production process of cloquintocet-mexyl and using method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Chunling Inventor after: Li Xiaogang Inventor after: Yu Xiugang Inventor after: Mao Xuefeng Inventor after: Li Xiaoning Inventor after: Yang Guoju Inventor after: Sun Lixin Inventor before: Zhang Chunling Inventor before: Li Xiaogang Inventor before: Yu Xiugang Inventor before: Mao Xuefeng Inventor before: Li Xiaoning Inventor before: Yang Guoju Inventor before: Zhang Lixin |
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| CB03 | Change of inventor or designer information |