CN207614383U - A kind of furfural continuous rectification apparatus - Google Patents
A kind of furfural continuous rectification apparatus Download PDFInfo
- Publication number
- CN207614383U CN207614383U CN201721423093.4U CN201721423093U CN207614383U CN 207614383 U CN207614383 U CN 207614383U CN 201721423093 U CN201721423093 U CN 201721423093U CN 207614383 U CN207614383 U CN 207614383U
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- CN
- China
- Prior art keywords
- tank
- pipeline
- rectifying column
- buffer unit
- aldehyde
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- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 150000001299 aldehydes Chemical class 0.000 claims abstract description 42
- 239000000872 buffer Substances 0.000 claims abstract description 33
- 238000010992 reflux Methods 0.000 claims abstract description 26
- 238000004821 distillation Methods 0.000 claims abstract description 25
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 12
- 238000007086 side reaction Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 238000007670 refining Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 208000030961 allergic reaction Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of furfural continuous rectification apparatus,Including distillation still,Head tank,Ebullator,Rectifying column,Condenser,Divide aldehyde tank and smart aldehyde tank,Reflux buffer unit is provided on pipeline between head tank and rectifying column,First aldehyde tank is connected with reflux buffer unit by proportional controller,Rectifying column and distillation still junction are internally provided with viscous flow device,Viscous flow device includes the girth sheets being mounted on distillation still inner wall,Girth sheets inner ring is provided with overflow piece,Girth sheets center top is provided with cone bucket,Viscous flow disk is provided at the top of cone bucket,Ebullator includes hollow tube and the external jacket of font,Hollow tube and reflux buffer unit are installed respectively in two cylinder chambers of external jacket,The buffer unit that flows back includes vaccum case and interior stream chamber,It is provided with several isocons in interior stream chamber,Remittance chamber and lower remittance chamber are respectively arranged at the top and bottom of isocon,Lower remittance chamber is connected with peristaltic pump,Continuous rectification operates in the case of realizing raw material cut-off,Reduce side reaction link.
Description
Technical field
The utility model is related to furfural technical field of rectification, specially a kind of furfural continuous rectification apparatus.
Background technology
Most of producers of thick aldehyde during current China's furfural production using plus alkali neutralization organic acid after, then between one
Refining kettle of having a rest is refined into furfural product, and there are one the filled columns of very little on refining kettle, disposably squeeze into thick aldehyde when refined refined
It in pot, then is passed through steam heating and is evaporated under reduced pressure, both first steamed the moisture content of thick aldehyde and lighter component, then second step again will be smart
Aldehyde steams, and this technique has the following problems：Separating effect is poor, and the quantity that water aldehyde takes away furfural is more, and primary purification rate is low,
Part furfural is caused to carry out secondary refining, secondary be heated has heat loss；Thick aldehyde dehydration refine carry out increasing furfural at one pot it is heated
When inevitably cause allergic reaction；Light component refining kettle residence time longer and thick aldehyde together be heated can cause it is certain
The side reactions such as condensation；The bad control of product quality.
Invention content
In order to overcome the shortcomings of that prior art, the utility model provide a kind of furfural continuous rectification apparatus, realize
Continuous rectification operates in the case of raw material cut-off, reduces side reaction link, improves product quality.
Technical solution adopted by the utility model to solve its technical problems is：A kind of furfural continuous rectification apparatus, including
Distillation still, head tank, ebullator, rectifying column and water circle device, the rectifying column is fixedly mounted on the top of distillation still, described
The both ends of ebullator are respectively and fixedly installed to side wall and the bottom of distillation still by pipeline, and the head tank is connected to by pipeline
On rectifying column outer wall, and reflux buffer unit is provided on the pipeline between the head tank and rectifying column, the rectifying tower top
Portion is connected with condenser by pipeline, and the condenser is connected with a point aldehyde tank by pipeline, described that aldehyde tank is divided to distinguish by pipeline
It is connected with rectifying tower side wall, first aldehyde tank and smart aldehyde tank, the just aldehyde tank is connected with reflux buffer unit by proportional controller, and
The proportional controller is connected with fluid reservoir by pipeline；
The rectifying column and distillation still junction are internally provided with viscous flow device, and the viscous flow device includes being mounted on distillation
Girth sheets on kettle inner wall, the girth sheets inner ring are provided with overflow piece, and the girth sheets center top is provided with cone bucket, the cone bucket
Top is provided with viscous flow disk, and the ebullator includes hollow tube and the external jacket of font, the hollow tube and reflux buffering fill
It sets in two cylinder chambers of installation external jacket respectively, the reflux buffer unit includes vaccum case and interior stream chamber, the interior stream
It is provided with several isocons in chamber, remittance chamber and lower remittance chamber, the lower remittance are respectively arranged at the top and bottom of the isocon
Chamber is connected with peristaltic pump.
As a kind of preferred technical solution of the utility model, the water circle device includes water tank and micropump, described
Micropump is connected with condenser by inlet pipe, and the condenser connects water tank by outlet pipe, and the inlet pipe is connected by jet pump
There is negative pressure buffer, and the negative pressure buffer is separately connected point aldehyde tank and a proportional controller by pipeline.
As a kind of preferred technical solution of the utility model, it is provided on the pipeline between the head tank and rectifying column
Shut-off valve and flowmeter.
Wired stream seam is set as a kind of preferred technical solution of the utility model, among the outer ring of the viscous flow disk.
Compared with prior art, the utility model has the beneficial effects that：
（1）By the separation of primary aldehyde and smart aldehyde, and passing through reflux ratio controller will by using aldehyde tank is divided for the utility model
Partial primary aldehyde is added by reflux buffer unit again in the pipeline of raw material supply, to be promoted in distillation still and rectifying column
Forward reaction, to effectively realize quick rectifying, Liquid Residue active principle is reduced in distillation still, and rectification efficiency is high；Water
Micropump in circulator provides the tank body of whole system while providing condenser and effectively freezing by jet pump
Negative pressure state, and the inside cycle of acceleration system, reduce the generation of side reaction；
（2）The utility model closes the shut-off valve between head tank and bead tube when head tank is replaced, while making negative
Compression buffer pressure reduces, and peristaltic pump, which works on, is slowly pressed into the raw material in the buffer unit that flows back in rectifying column, and remain in a standstill dress
The cone bucket set can be of short duration the distillation material wandered from top of delay, and flooded operation is carried out by girth sheets, when raw material is replaced,
Overflow piece reduces flooding velocity and does not form cutout, to keep the operation of continuous rectification, the interior stream chamber energy of vaccum case package
The mixture of raw material and reflux material is uniformly divided into isocon and carried out fully by enough preheatings for providing reflux buffer unit, lower remittance chamber
Preheating, by peristaltic pump can adjust its raw material supply speed, to be advantageously implemented continuous rectification operation.
Description of the drawings
Fig. 1 is the Integral connection structure schematic diagram of the utility model；
Fig. 2 is the viscous flow device structural schematic diagram of the utility model；
Fig. 3 is the ebullator and reflux buffer unit cross-sectional view of the utility model；
Fig. 4 is the ebullator and reflux buffer unit cross-sectional structure schematic diagram of the utility model.
In figure：1- distillation stills；2- head tanks；3- ebullators；4- rectifying columns；5- reflux buffer units；6- condensers；7- points
Aldehyde tank；The first aldehyde tanks of 8-；9- essence aldehyde tanks；10- proportional controllers；11- fluid reservoirs；12- viscous flow devices；13- water circle devices；
1301- water tanks；1302- micropumps；14- negative pressure buffers；1201- girth sheets；1202- overflow pieces；1203- cone buckets；1204- remains in a standstill
Disk；1205- line streams stitch；301- hollow tubes；302- external jackets；303- column type chambers；501- vaccum cases；Chamber is flowed in 502-；503-
Isocon；Converge chamber on 504-；Converge chamber under 505-；506- peristaltic pumps.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The explanation of following embodiment is refer to the attached drawing, can be to the particular implementation implemented to example the utility model
Example.The direction and position term that the utility model is previously mentioned, for example, "upper", " in ", "lower", "front", "rear", "left", "right", "
It is interior ", "outside", " side " etc., be only the direction and position with reference to annexed drawings.Therefore, the direction and position term used is to use
To illustrate and understand the utility model, rather than to limit the utility model.
Embodiment：
As shown in Figure 1, the utility model provides a kind of furfural continuous rectification apparatus, including distillation still 1, head tank 2, boiling
Device 3, rectifying column 4 and water circle device 13 are risen, the rectifying column 4 is fixedly mounted on the top of distillation still 1, the ebullator 3
Both ends are respectively and fixedly installed to side wall and the bottom of distillation still 1 by pipeline, and the head tank 2 is connected to rectifying column by pipeline
Reflux buffer unit 5,4 top of the rectifying column are provided on 4 outer walls, and on the pipeline between the head tank 2 and rectifying column 4
It is connected with condenser 6 by pipeline, the condenser 6 is connected with a point aldehyde tank 7 by pipeline, described that aldehyde tank 7 is divided to pass through pipeline point
It is not connected with 4 side wall of rectifying column, first aldehyde tank 8 and smart aldehyde tank 9, the just aldehyde tank 8 is connected with reflux by proportional controller 10 and delays
Flushing device 5, and the proportional controller 10 is connected with fluid reservoir 11 by pipeline, is divided the furfural after rectifying by a point circle tank 7
When for primary aldehyde and smart aldehyde, and the primary aldehyde in part being carried out reflux operation, and head tank cut-off are made up by the buffer unit 5 that flows back
Continuous rectification demand, and accelerate forward reaction when rectifying；
As shown in Figure 2, Figure 3 and Figure 4, the rectifying column 4 and 1 junction of distillation still are internally provided with viscous flow device 12, institute
It includes the girth sheets 1201 being mounted on 1 inner wall of distillation still to state viscous flow device 12, and 1201 inner ring of the girth sheets is provided with overflow piece
1202,1201 center top of the girth sheets is provided with cone bucket 1203, and the top of the cone bucket 1203 is provided with viscous flow disk 1204, institute
It includes hollow tube 301 and the external jacket 302 of 8-shaped to state ebullator 3, and the hollow tube 301 and the buffer unit 5 that flows back are pacified respectively
In two cylinder chambers 303 for filling external jacket 302, the reflux buffer unit 5 includes vaccum case 501 and interior stream chamber 502, described
Several isocons 503 are provided in interior stream chamber 502, the top and bottom of the isocon 503 are respectively arranged with remittance 504 He of chamber
Lower remittance chamber 505, the lower remittance chamber are connected with peristaltic pump 506；
The water circle device 13 includes water tank 1301 and micropump 1302, and the micropump 1302 is connected by inlet pipe 1303
It is connected to condenser 6, the condenser 6 connects water tank 1301 by outlet pipe 1304, and the inlet pipe 1303 is connected by jet pump 1305
It is connected to negative pressure buffer 14, and the negative pressure buffer 14 is separately connected point aldehyde tank 7 and proportional controller 10 by pipeline, water follows
Micropump in loop device provides the negative of the tank body of whole system while providing condenser and effectively freezing by jet pump
Pressure condition, and the inside cycle of acceleration system, reduce the generation of side reaction；On pipeline between the head tank 2 and rectifying column 4
It is provided with shut-off valve and flowmeter, shut-off valve and flowmeter are used to intuitively control the generation of its continuous rectification；The viscous flow disk
Outer ring among wired stream seam 1205 is set, pass through line stream seam 1205 and provide and increase speed persistently feeding intake when reducing in raw material.
In conclusion the utility model is mainly characterized by：The utility model by using dividing aldehyde tank by primary aldehyde and
The separation of smart aldehyde, and the primary aldehyde of part is added by raw material supply by reflux ratio controller again by reflux buffer unit
In pipeline, to promote the forward reaction in distillation still and rectifying column, thus effectively realize quick rectifying, it is residual in distillation still
Liquid active principle is stayed to reduce, rectification efficiency is high；When head tank is replaced, the shut-off valve between head tank and bead tube is closed, together
When make negative pressure buffer pressure reduce, peristaltic pump work on by flow back buffer unit in raw material is slowly pressed into rectifying column
In, the distillation material that delay that the cone bucket of viscous flow device can be of short duration is wandered from top, and flooded operation is carried out by girth sheets, in original
When material is replaced, overflow piece reduces flooding velocity and does not form cutout, to keep the operation of continuous rectification, vaccum case package
Interior stream chamber is capable of providing the preheating of reflux buffer unit, and the mixture of raw material and reflux material is uniformly divided into isocon by the lower chamber that converges
It is adequately preheated, the speed of its raw material supply can be adjusted by peristaltic pump, to be advantageously implemented continuous rectification operation.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (4)
1. a kind of furfural continuous rectification apparatus, including distillation still（1）, head tank（2）, ebullator（3）, rectifying column（4）It is followed with water
Loop device（13）, it is characterised in that：The rectifying column（4）It is fixedly mounted on distillation still（1）Top, the ebullator（3）'s
Both ends are respectively and fixedly installed to distillation still by pipeline（1）Side wall and bottom, the head tank（2）It is connected to essence by pipeline
Evaporate tower（4）On outer wall, and the head tank（2）And rectifying column（4）Between pipeline on be provided with reflux buffer unit（5）, institute
State rectifying column（4）Top is connected with condenser by pipeline（6）, the condenser（6）It is connected with a point aldehyde tank by pipeline（7）,
Described point of aldehyde tank（7）It is connected separately with rectifying column by pipeline（4）Side wall, first aldehyde tank（8）With smart aldehyde tank（9）, the just aldehyde tank
（8）Pass through proportional controller（10）It is connected with reflux buffer unit（5）, and the proportional controller（10）It is connected with by pipeline
Fluid reservoir（11）；
The rectifying column（4）And distillation still（1）Junction is internally provided with viscous flow device（12）, the viscous flow device（12）Including
Mounted on distillation still（1）Girth sheets on inner wall（1201）, the girth sheets（1201）Inner ring is provided with overflow piece（1202）, the circle
Plate（1201）Center top is provided with cone bucket（1203）, the cone bucket（1203）Top be provided with viscous flow disk（1204）, described
Ebullator（3）Including hollow tube（301）The external jacket of 8-shaped（302）, the hollow tube（301）With reflux buffer unit
（5）External jacket is installed respectively（302）Two cylinder chambers（303）In, the reflux buffer unit（5）Including vaccum case
（501）With interior stream chamber（502）, the interior stream chamber（502）In be provided with several isocons（503）, the isocon（503）Top
Portion and bottom are respectively arranged with remittance chamber（504）With lower remittance chamber（505）, the lower remittance chamber is connected with peristaltic pump（506）.
2. a kind of furfural continuous rectification apparatus according to claim 1, it is characterised in that：The water circle device（13）Packet
Include water tank（1301）And micropump（1302）, the micropump（1302）Pass through inlet pipe（1303）It is connected with condenser（6）, described
Condenser（6）Pass through outlet pipe（1304）Connect water tank（1301）, the inlet pipe（1303）Pass through jet pump（1305）It is connected with negative
Compression buffer（14）, and the negative pressure buffer（14）It is separately connected a point aldehyde tank by pipeline（7）And proportional controller（10）.
3. a kind of furfural continuous rectification apparatus according to claim 1, it is characterised in that：The head tank（2）And rectifying
Tower（4）Between pipeline on be provided with shut-off valve and flowmeter.
4. a kind of furfural continuous rectification apparatus according to claim 1, it is characterised in that：Among the outer ring of the viscous flow disk
Wired stream seam is set（1205）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423093.4U CN207614383U (en) | 2017-10-31 | 2017-10-31 | A kind of furfural continuous rectification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423093.4U CN207614383U (en) | 2017-10-31 | 2017-10-31 | A kind of furfural continuous rectification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207614383U true CN207614383U (en) | 2018-07-17 |
Family
ID=62827288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721423093.4U Expired - Fee Related CN207614383U (en) | 2017-10-31 | 2017-10-31 | A kind of furfural continuous rectification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207614383U (en) |
-
2017
- 2017-10-31 CN CN201721423093.4U patent/CN207614383U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 |