CN206867753U - A kind of efficient desolventizing system - Google Patents
A kind of efficient desolventizing system Download PDFInfo
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- CN206867753U CN206867753U CN201720780556.6U CN201720780556U CN206867753U CN 206867753 U CN206867753 U CN 206867753U CN 201720780556 U CN201720780556 U CN 201720780556U CN 206867753 U CN206867753 U CN 206867753U
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- precipitation
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Abstract
The utility model discloses a kind of efficient desolventizing system, belong to precipitation field.It includes the de- device of essence, and the de- device of essence includes rectifying column and thin film evaporator, the inlet of the liquid outlet connection thin film evaporator of rectifier bottoms, the air inlet of the gas outlet connection rectifying column bottom of thin film evaporator；Gas outlet at the top of the rectifying column is through the de- de- extraction receiver of condenser connection essence of essence.The utility model can carry out further later stage carrying out precipitation treatment to the solution by carrying out precipitation treatment early stage, effectively can deviate from solvent, improve the rate of recovery of solvent, reduce the waste degree of precipitation solvent.
Description
Technical field
The utility model belongs to precipitation field, more specifically to a kind of efficient desolventizing system.
Background technology
Precipitation refers in supersaturated solid solution, and segregation, and the phenomenon of Precipitation cenotype occurs in solute atoms.Precipitation
Reaction is carried out typically in confined space, and conventional Precipitation Reaction device is precipitation kettle.But more universal precipitation kettle is used at present
Single extraction system is provided with, in processing procedure early stage, a large amount of easy strips of solvent, the later stage is not easy to take off solvent, no
Technological requirement can be met.
Through retrieval, Chinese Patent Application No. 201320451729.1, publication date is the patent document on January 22nd, 2014,
A kind of precipitation kettle is disclosed, including kettle, kettle both ends are provided with end socket, center is provided with a stirring in kettle
Axle, agitating shaft are connected by shaft coupling with decelerator, and decelerator connection motor is fixed on motor cabinet, and oar is provided with agitating shaft
Formula agitator, agitating shaft lower end are provided with gate stirrer, and gate stirrer bottom is provided with scraper；Set on dasher
There is at least 2 blades, described blade to be axially equally spaced along agitating shaft.The utility model is provided with paddle on agitating shaft and stirred
Device is mixed, at least 2 blades, agitating shaft lower end are provided with dasher and is provided with gate stirrer, is advantageous to improve kettle
The stirring efficiency of bottom；In addition, being additionally provided with scraper in gate stirrer bottom, it can prevent material from sticking in autoclave body bottom, enter one
Step improves precipitation efficiency.
And for example Chinese Patent Application No. 201310662667.3, publication date are the patent application document on June 10th, 2015,
A kind of new desolventizing machine, including cylinder, support shaft and dividing plate are disclosed, support shaft is provided among the cylinder, described
Support shaft is provided with dividing plate, and feed opening is provided with the dividing plate, and direct steam inlet pipe and steam outlet pipe are provided with the cylinder,
Material pendulum is provided with above the inner barrel, and rocking bar is put with the material of material pendulum connection, is provided with out below the inner barrel
Material mouth, heat insulation layer is provided with the cylinder body outer wall.Invention design is simple, rational in infrastructure, provided with material pendulum can control into
Expect speed, product treatment quality can be improved, temperature equalization, heat dissipation is few, good energy-conserving effect.
But the problem of technical scheme disclosed in above-mentioned two parts of patent application documents is present is：Because the Precipitation Reaction later stage takes off
Solvent easily carries a large amount of impurity secretly, and the precipitation impurity in products now gathered is more, and precision is low, and if in order to avoid precipitation solvent bank
Enter impurity to stop gathering in the precipitation later stage, then precipitation is not thorough, wastes precipitation solvent, reduces precipitation yield.
Occurs new desolventizing equipment regarding to the issue above, such as Chinese Patent Application No. 201020616523.6, publication date
For the patent application document on June 26th, 2011, a kind of o-cresol formaldehyde epoxy resin processing based on two-stage desolventizing is disclosed
Device is feed pump, the first pipe-line mixer, falling film evaporator, gas-liquid separator, a de- drawing pump, second pipe blender, thin
The de- drawing pump of film evaporator, packed tower and two is sequentially connected, and the o-cresol formaldehyde epoxy resin solution of gas-liquid separator output has one
Part is returned in the first pipe-line mixer through reflux pump, and steam entry port is provided with second pipe blender, in gas-liquid point
From being equipped with volatile matter gaseous phase outlet on device and thin film evaporator.The device carries out carrying out precipitation treatment early stage, equipment without precipitation kettle
Live load is larger, and its precipitation is less efficient.
Therefore, on the basis of existing precipitation kettle carries out carrying out precipitation treatment early stage, it is necessary to post-processing is further carried out, and
Improve the rate of recovery of later stage solvent.
The content of the invention
1st, to solve the problems, such as
The problem of precipitation later stage solvent is difficult to take off be present for existing desolventizing equipment, the utility model provides a kind of efficient
Desolventizing system, further later stage carrying out precipitation treatment can be carried out to the solution by carrying out precipitation treatment early stage, effectively deviate from solvent,
The rate of recovery of solvent is improved, reduces the waste degree of precipitation solvent.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of efficient desolventizing system, including the de- device of essence；The de- device of essence includes rectifying column and thin film evaporator, rectifying
The inlet of the liquid outlet connection thin film evaporator of tower bottom, the air inlet of the gas outlet connection rectifying column bottom of thin film evaporator
Mouthful；Gas outlet at the top of the rectifying column is through the de- de- extraction receiver of condenser connection essence of essence.
Further, the thin film evaporator is provided with agitating device.
Further, the thin film evaporator is heated by heater.
Further, described heater is flash distillation plant.
Further, the liquid outlet connection finished product receiver of the thin film evaporator bottom.
Further, in addition to just de- device, described essence take off device connection just de- device, and just de- device includes precipitation
Kettle and just de- extraction receiver；The inlet of the liquid outlet connection rectifying column of the precipitation kettle, the gas outlet of precipitation kettle is by just taking off
Condenser connection is just de- to produce receiver.
Further, the just de- device also includes crude product receiver；The outlet of the crude product receiver bottom is by turning material
Pump connects precipitation kettle.
Further, it is provided with heat exchanger between transfering material pump and the precipitation kettle.
Further, in addition to vacuum pump set；The just de- condenser and the de- condenser of essence are all connected with vacuum pump set.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) essence of the efficient desolventizing system of the utility model, which takes off device, includes rectifying column and thin film evaporator, rectifier bottoms
Liquid outlet connection thin film evaporator inlet, the air inlet of the gas outlet connection rectifying column bottom of thin film evaporator, rectifying
The gas outlet of top of tower is carried out further through the de- de- extraction receiver of condenser connection essence of essence to the solution by carrying out precipitation treatment early stage
Later stage carrying out precipitation treatment, the lower descending liquid in the gas phase and rectifying column that evaporate in thin film evaporator carries out counter current contacting, and two connect
In touching, volatile (low boiling) solvent in lower descending liquid constantly shifts into gas phase, and the difficult volatilization (higher boiling) in gas phase is miscellaneous
Matter is constantly shifted in downward descending liquid, and gas phase is closer to tower top, and its volatile components concentration is higher, and lower descending liquid is closer to tower
Bottom, its difficult volatile component are then more enriched with, and so as to realize that component separates, the gas phase of tower top takes off the liquefaction of condenser rapid condensation through essence,
Collect in the de- extraction receiver of essence, effectively solvent can be deviate from, improve the rate of recovery of solvent, reduce the waste of precipitation solvent
Degree, and improve the purity of precipitation product；
(2) thin film evaporator of the efficient desolventizing system of the utility model, which is provided with agitating device, makes solution temperature therein more
Add uniformly, be advantageous to the evaporation of solvent；
(3) the efficient desolventizing system thin film evaporator of the utility model is heated by heater, when making solution shorter
Between reach higher temperature, be advantageous to the evaporation of solvent, improve precipitation efficiency；
(4) the efficient desolventizing system thin film evaporator of the utility model is heated using flash distillation plant, and heating is more quick,
Precipitation efficiency is further increased, shortens the process time；
(5) the liquid outlet connection finished product receiver of the efficient desolventizing system thin film evaporator bottom of the utility model, for holding
Finished product after precipitation, vacates thin film evaporator in time, realizes continuous production；
(6) the efficient desolventizing system of the utility model also includes just de- device, and essence takes off device connection just de- device, just takes off device
Take off including precipitation kettle and just and produce receiver, the inlet of the liquid outlet connection rectifying column of precipitation kettle, the gas outlet of precipitation kettle passes through
Just de- condenser connection just takes off extraction receiver, forms a complete desolventizing system, and just de- device takes off early stage for Precipitation Reaction
The collection of molten product, now precipitation product purity is high, and rate of withdrawal is fast, when Precipitation Reaction enters the later stage, precipitation under normal circumstances
Product starts to be mingled with, and takes off device at the beginning of now closing early stage, and the later stage de- device of essence is gone to from precipitation bottom portion, precipitation solvent is made into
One step is gathered, continuous production, and the rate of recovery of solvent is effectively improved by precipitation twice, reduces the waste degree of precipitation solvent；
(7) just de- device also includes crude product receiver to the efficient desolventizing system of the utility model, and the outlet of crude product receiver bottom leads to
Transfering material pump connection precipitation kettle is crossed, crude product receiver is used to hold the material that need to carry out precipitation, and material is evacuated to precipitation kettle by transfering material pump, is dropped
Low labor intensity manually；
(8) the efficient desolventizing system of the utility model is just provided with heat exchanger between the transfering material pump and precipitation kettle of de- device, right
Material is preheated, and alleviates the live load of precipitation kettle, decreases the precipitation time, is advantageous to improve precipitation efficiency；
(9) the efficient desolventizing system of the utility model also includes vacuum pump set, and just de- condenser and the de- condenser of essence are all connected with
Vacuum pump set, the boiling point of solvent reduces under vacuum state, and beneficial to evaporation precipitation, and just de- condenser and the de- condenser of essence share one
Set vacuum pump set reduces equipment investment and production space-consuming.
Brief description of the drawings
Fig. 1 is the structural representation of the efficient desolventizing system of the utility model.
In figure：1st, thin film evaporator；2nd, heater；3rd, agitating device；4th, rectifying column；5th, precipitation kettle；6th, just de- condensation
Device；7th, it is just de- to produce receiver；8th, heat exchanger；9th, crude product receiver；10th, transfering material pump；11st, finished product receiver；12nd, the de- condenser of essence；13、
The de- extraction receiver of essence；14th, vacuum pump set.
Embodiment
The utility model is further described below with reference to specific embodiment.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of efficient desolventizing system, including the de- device of essence；The de- device of essence includes
Rectifying column 4 and thin film evaporator 1, the inlet of the liquid outlet connection thin film evaporator 1 of the bottom of rectifying column 4, thin film evaporator 1
The air inlet of gas outlet connection rectifying column 4 bottom；The gas outlet at the top of rectifying column 4 connects smart take off through the de- condenser 12 of essence and adopted
Go out receiver 13.
In addition, thin film evaporator 1 is provided with agitating device 3, makes solution temperature therein more uniform, be advantageous to solvent
Evaporation, is heated using flash distillation plant to it, and heating is quick, the solution short period is reached higher temperature, improves precipitation
Efficiency, shorten the process time, and the liquid outlet connection finished product receiver 11 of the bottom of thin film evaporator 1, for hold after precipitation into
Product, thin film evaporator 1 is vacated in time, realizes continuous production.
The efficient desolventizing system can carry out further later stage carrying out precipitation treatment, film to the solution by carrying out precipitation treatment early stage
The gas phase evaporated in evaporator 1 carries out counter current contacting with the lower descending liquid in rectifying column 4, easy in lower descending liquid during two are in contact
Volatilization (low boiling) solvent constantly shifts into gas phase, and difficult volatilization (higher boiling) impurity in gas phase is constantly in downward descending liquid
Transfer, for gas phase closer to the tower top of rectifying column 4, its volatile components concentration is higher, and lower descending liquid is closer to the bottom of towe of rectifying column 4, its
Difficult volatile component is then more enriched with, and so as to realize that component separates, the gas phase of tower top is through the de- rapid condensation of condenser 12 liquefaction of essence, collection
Into the de- extraction receiver 13 of essence, the finished product after precipitation is held by finished product receiver 11.
The system effectively can deviate from solvent, improve the rate of recovery of solvent, reduce the waste degree of precipitation solvent, and
And improve the purity of precipitation product.
Embodiment 2
As shown in figure 1, the present embodiment provides a kind of efficient desolventizing system, including just de- device and the de- device of essence, the de- dress of essence
Put connection just de- device.
The de- device of essence includes rectifying column 4 and thin film evaporator 1, the liquid outlet connection thin film evaporator 1 of the bottom of rectifying column 4
Inlet, the air inlet of gas outlet connection rectifying column 4 bottom of thin film evaporator 1；The gas outlet at the top of rectifying column 4 is through essence
De- condenser 12 connects the de- extraction receiver 13 of essence.
In addition, thin film evaporator 1 is provided with agitating device 3, makes solution temperature therein more uniform, be advantageous to solvent
Evaporation, is heated using flash distillation plant to it, and heating is quick, the solution short period is reached higher temperature, improves precipitation
Efficiency, shorten the process time, and the liquid outlet connection finished product receiver 11 of the bottom of thin film evaporator 1, for hold after precipitation into
Product, thin film evaporator 1 is vacated in time, realizes continuous production.
Just de- device includes precipitation kettle 5, just de- extraction receiver 7 and crude product receiver 9, the liquid outlet connection of the precipitation kettle 5
The inlet of rectifying column 4, the gas outlet of precipitation kettle 5 connect just de- extraction receiver 7, the bottom of crude product receiver 9 by just taking off condenser 6
Outlet precipitation kettle 5 is connected by transfering material pump 10, heat exchanger 8, the bottom of precipitation kettle 5 are provided between transfering material pump 10 and precipitation kettle 5
Outlet is provided with valve.
Crude product receiver 9 is used to hold the material that need to carry out precipitation, and material is evacuated to precipitation kettle 5, reduces people by transfering material pump 10
The labor intensity of work, heat exchanger 8 preheat to material, the live load of precipitation kettle 5 are alleviated, when decreasing precipitation
Between, be advantageous to improve precipitation efficiency.
Just de- device and the de- device of essence form a complete desolventizing system, and just de- device is used for Precipitation Reaction precipitation early stage
The collection of product, now precipitation product purity is high, and rate of withdrawal is fast, and when Precipitation Reaction enters the later stage, precipitation produces under normal circumstances
Thing starts to be mingled with, and takes off device at the beginning of now closing early stage, and the later stage de- device of essence is gone to from the bottom of precipitation kettle 5, precipitation solvent is made into
One step is gathered, continuous production, and the rate of recovery of solvent is effectively increased by precipitation twice, reduces the waste journey of precipitation solvent
Degree, and improve the purity of precipitation product.
The process of the efficient desolventizing system removing isooctanol of the utility model：Isooctanol solvent mixture is added into crude product receiver
In 9, by transfering material pump, 10 turns are expected to precipitation kettle 5 after heat exchanger 8 preheats to mixture, start to adopt isooctanol
Collection, now isooctanol product purity is high, and the speed of response is fast, and carrying out harvesting using first de- device can be fast and efficiently big to measuring
Product is harvested；Device picking rate was taken off originally to slow down, and when isooctanol flow velocity reduces, closed just de- device, while open de-
The valve of the molten bottom of kettle 5, turn material and flow into thin film evaporator 1 to rectifying column 4, then by the bottom of rectifying column 4, it is de- cold to be then turned on essence
Condenser 12, thin film evaporator 1 is quickly heated by flash distillation plant, makes isooctanol from the gas outlet of thin film evaporator 1 through pipeline
Into rectifying column 4, make further to gather isooctanol in rectifying column 4, so isooctanol product purity is higher, and gather more thorough
Bottom, precipitation yield is increased, reduce the waste of isooctanol.
Embodiment 3
The efficient desolventizing system of the present embodiment, structure is essentially identical with embodiment 2, and difference is：Also include vacuum
Unit 14；The just de- condenser 6 and the de- condenser 12 of essence are all connected with vacuum pump set 14, the boiling point drop of solvent under vacuum state
It is low, beneficial to evaporation precipitation, and just de- condenser 6 and the de- condenser 12 of essence share a set of vacuum pump set 14 reduce equipment investment and
Produce space-consuming.
Claims (9)
- A kind of 1. efficient desolventizing system, it is characterised in that：Including the de- device of essence；The de- device of essence includes rectifying column (4) and thin Film evaporator (1), the inlet of the liquid outlet connection thin film evaporator (1) of rectifying column (4) bottom, thin film evaporator (1) goes out Gas port connects the air inlet of rectifying column (4) bottom；Gas outlet at the top of the rectifying column (4) is through de- condenser (12) the connection essence of essence De- extraction receiver (13).
- A kind of 2. efficient desolventizing system according to claim 1, it is characterised in that：The thin film evaporator (1) is provided with Agitating device (3).
- A kind of 3. efficient desolventizing system according to claim 1 or 2, it is characterised in that：The thin film evaporator (1) passes through Heater (2) is heated.
- A kind of 4. efficient desolventizing system according to claim 3, it is characterised in that：Described heater (2) is flash distillation Device.
- A kind of 5. efficient desolventizing system according to claim 1 or 2, it is characterised in that：Thin film evaporator (1) bottom Liquid outlet connection finished product receiver (11).
- A kind of 6. efficient desolventizing system according to claim 1, it is characterised in that：Also include just de- device, described essence De- device connection just takes off device, and just de- device includes precipitation kettle (5) and just takes off extraction receiver (7)；The precipitation kettle (5) goes out liquid The inlet of mouth connection rectifying column (4), the gas outlet of precipitation kettle (5) pass through just de- first take off of condenser (6) connection and produce receiver (7)。
- A kind of 7. efficient desolventizing system according to claim 6, it is characterised in that：The just de- device also include crude product by Device (9)；The outlet of crude product receiver (9) bottom connects precipitation kettle (5) by transfering material pump (10).
- A kind of 8. efficient desolventizing system according to claim 7, it is characterised in that：The transfering material pump (10) and precipitation kettle (5) heat exchanger (8) is provided between.
- A kind of 9. efficient desolventizing system according to claim 6 or 7 or 8, it is characterised in that：Also include vacuum pump set (14)；The just de- condenser (6) and the de- condenser (12) of essence are all connected with vacuum pump set (14).
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| CN201720780556.6U CN206867753U (en) | 2017-06-30 | 2017-06-30 | A kind of efficient desolventizing system |
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| CN201720780556.6U CN206867753U (en) | 2017-06-30 | 2017-06-30 | A kind of efficient desolventizing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114681934A (en) * | 2020-12-25 | 2022-07-01 | 西安万德科技有限公司 | System for increasing concentration of mixed liquid or evaporating solvent |
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- 2017-06-30 CN CN201720780556.6U patent/CN206867753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114681934A (en) * | 2020-12-25 | 2022-07-01 | 西安万德科技有限公司 | System for increasing concentration of mixed liquid or evaporating solvent |
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