CN109646975A - A kind of polymer devolatilization apparatus - Google Patents
A kind of polymer devolatilization apparatus Download PDFInfo
- Publication number
- CN109646975A CN109646975A CN201910148309.8A CN201910148309A CN109646975A CN 109646975 A CN109646975 A CN 109646975A CN 201910148309 A CN201910148309 A CN 201910148309A CN 109646975 A CN109646975 A CN 109646975A
- Authority
- CN
- China
- Prior art keywords
- devolatilization
- area
- polymer
- falling
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 111
- 239000007788 liquid Substances 0.000 claims abstract description 78
- 239000010408 film Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims abstract description 52
- 239000011552 falling film Substances 0.000 claims abstract description 23
- 239000012071 phase Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 230000010006 flight Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000003416 augmentation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0088—Cascade evaporators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention provides a kind of polymer devolatilization apparatus, the Devolatilization device is disposed with from top to bottom: charging distributed area, falls one area of a devolatilization, one area of falling liquid film devolatilization, falls 2nd area of a devolatilization, 2nd area of falling liquid film devolatilization and material collection area heating devolatilization area；The charging distributed area is provided with feed inlet；The heating devolatilization area is provided with shell-and-tube heat exchanger, and the tube layer of the shell-and-tube heat exchanger includes the heating tubulation of multiple upper entering and lower leavings；One area of a devolatilization that falls is provided with volatilization sub-export；One area of falling liquid film devolatilization is equipped with liquid collecting falling-film distributor, and the liquid collecting falling-film distributor is connected to the motor outside the Devolatilization device bottom by shaft；The bottom surface or side in the material collection area are provided with discharge port, and the material collection area is additionally provided with the material-pulling device for pushing polymer to move down.After adopting the above technical scheme, Devolatilization device is compact-sized, small in size, and static, the efficient devolatilization of dynamic multi-level can be carried out to polymer in suitable technological temperature.
Description
Technical field
The present invention relates to polymer devolatilization technical field more particularly to a kind of polymer devolatilization apparatus.
Background technique
The polymer come out from reactor is all containing the component of low relative molecular mass, as monomer, solvent and reaction are secondary
Product is collectively referred to as volatile matter, is the component that should not contain in polymer.It removes and waves from polymer solution or polymer body
The process of hair point is referred to as polymer devolatilization, this process can satisfy health and environment while improving polymer performance
Requirement, have become one of necessary unit operation in polymer production process process.
Industrial devolatilization equipment can be divided into static type and dynamic type two major classes.Static type devolatilization equipment is without mechanical stirring or machine
Tool stirring separates volatile matter inessential from polymer, and usual pattern has: flash tank falls a devolatilizer, falls film devolatilizer, drop
Film devolatilizer, liter film devolatilizer etc.；Have the characteristics that structure is simple, power consumption is low, high reliablity, maintenance maintenance are at low cost；
Suitable for the devolatilization of volatile matter content higher building material, but often it is unable to reach extremely low volatile matter residual quantity requirement.Dynamic type
Devolatilization equipment significantly improves the effect that volatile matter is separated from polymer using mechanical stirring, can achieve very low volatile matter
Residual, usual pattern have: vented screw extruder, luwa evaporator etc., but structure is complicated, power consumption is high；Suitable for waving
Hair divides the devolatilization of the lower material of content.
In actual production, it is remained when needs will volatilize the higher polymer devolatilization processing of point content to very low volatile matter
When amount, it is common practice to static and dynamic devolatilization equipment be carried out simple splicing to reach continuous devolatilization work using pipeline
Skill.But each equipment of the prior art is discrete, is connected between equipment using pipeline, it is caused to have the disadvantage that (1) equipment is purchased
Set, equipment foundation of civil work, installation etc. it is costly；(2) the material conveying of equipment room needs to consume additional power cost；
(3) installation area is big.Therefore, how to gather in the interior efficient devolatilization of realization of limited equipment volume (space) small as far as possible
It has been a problem that the volatile matter for closing object, which remains low as far as possible, its difficult point is: (1) needing in limited equipment body small as far as possible
The temperature of process for devolatilization requirement by polymer high efficiency is heated in product (space)；(2) temperature field is uniform as far as possible, avoids local mistake
Thermally-induced polymer decomposes；(3) avoiding polymer as far as possible in a device has remaining dead zone, and the polymer in dead zone can be due to length
Phase high temperature causes to decompose and influence the performance of polymer.
It would therefore be highly desirable to develop a kind of compact-sized, small in size, polymer can be carried out in suitable technological temperature quiet
The integrated-type polymer devolatilization apparatus of the efficient devolatilization of state, dynamic multi-level.
Summary of the invention
In order to overcome the above technical defects, it the purpose of the present invention is to provide a kind of compact-sized, small in size, can close
Suitable technological temperature carries out static, the efficient devolatilization of dynamic multi-level integrated-type polymer devolatilization apparatus to polymer.
The invention discloses a kind of polymer devolatilization apparatus, the Devolatilization device is provided with charging distributed area from top to bottom
(1), devolatilization area (2) are heated, one area of a devolatilization (3) is fallen, one area of falling liquid film devolatilization (4), falls 2nd area of a devolatilization (5), falling liquid film devolatilization two
Area (6) and material collection area (8)；The charging distributed area (1) is provided with feed inlet (9)；The heating devolatilization area (2) is provided with
For the polymer to be heated to the heating device of devolatilization temperature；One area of a devolatilization (3) that falls is provided with volatilization sub-export
(11)；One area of falling liquid film devolatilization (4) is equipped with liquid collecting falling-film distributor (12), and liquid collecting falling-film distributor (12), which is fixedly attached to, to be turned
Axis (22), the shaft (22) are connected to the motor outside the Devolatilization device bottom, and the Devolatilization device bottom is equipped with and wears axis mouth
(20), the shaft (22) is worn axis mouth (20) described in and is connect with the motor；The bottom surface or side of the material collection area (8)
Face is provided with discharge port (23), and the axis mouth (20) of wearing is set to material collection area (8) bottom；The polymer is from charging
Mouth (9) enters charging distributed area (1), enters the heating devolatilization area (2) later, polymer is in heating devolatilization area (2) Bian Jiare
Side devolatilization enters through the heating devices heat and after completing level-one devolatilization and falls one area of a devolatilization (3), falling one area of a devolatilization
(3) it is fallen in the liquid collecting falling-film distributor (12) in one area of falling liquid film devolatilization (4) after completing second level devolatilization, liquid collecting falling-film distributor
(12) it rotates driven by the motor, makes the polymer under gravity and centrifugal force effect on liquid collecting falling-film distributor (12)
It forms liquid film and completes the devolatilization of third pole, be thrown out of later into 2nd area of a devolatilization (5) is fallen, carry out fourth stage devolatilization herein and fall on
On the inner wall (13) in 2nd area of falling liquid film devolatilization (6), the polymer is after 2nd area of falling liquid film devolatilization (6) completes level V devolatilization to dirty
It is dynamic to enter the material collection area (8), and be discharged from discharge port (23)；Volatile matter in the polymer is from falling one area of a devolatilization
(3) volatilization sub-export (11) discharge.
Preferably, brokenly bubble devolatilization area (7) is provided between 2nd area of falling liquid film devolatilization (6) and the material collection area (8)；
Brokenly bubble devolatilization area (7) is provided with multiple groups scraper plate (14), and described scraper plate (14) one end approaches the interior of brokenly bubble devolatilization area (7)
Wall (15), the other end are fixedly attached on the shaft (22)；The polymer on 2nd area of falling liquid film devolatilization (6) inner wall (13) to
Under flow into brokenly bubble devolatilization area (7), scraper plate (14) is rotated with shaft (22) and is rotated, and pushes the polymer in brokenly bubble devolatilization
Liquid film is formed on the inner wall (15) in area (7) and is flowed downward into material collection area (8).Polymer is pushed to form film in scraper plate
During, scraper plate can force the steam bubble that has not enough time to rupture or be diffused into vapour phase having been formed in polymer broken
Bubble, enters the volatile matter being wrapped in liquid phase in vapour phase, completes the 6th grade of devolatilization.
Preferably, described to fall one area of a devolatilization (3), one area of falling liquid film devolatilization (4), fall 2nd area of a devolatilization (5), falling liquid film devolatilization two
The shell in area (6), brokenly bubble devolatilization area (7) and material collection area (8) is provided with independent or united collet (24), Huo Zheshe
It is equipped with electric heat tracing device, or is provided with insulating layer；Circulation has heat transferring medium in the collet (24).
Preferably, described to fall one area of a devolatilization (3), one area of falling liquid film devolatilization (4), fall 2nd area of a devolatilization (5), falling liquid film devolatilization two
Insulating layer or electric heat tracing device are provided with outside the shell in area (6), brokenly bubble devolatilization area (7) and material collection area (8).
Preferably, the material collection area (8) is provided with the dress of the pusher for pushing polymer to be discharged from discharge port (23)
It sets.
Preferably, in the side of the material collection area (8), the material-pulling device includes solid for discharge port (23) setting
Surely the pushing spiral (17) and reverse acting spiral (21) of the shaft (22) are connected to；The pushing spiral (17) setting it is described go out
Where plane (18) and the material collection area (8) highest point where material mouth (23) minimum point between plane (16), for pushing
The polymer moves down；The reverse acting spiral (21) setting is in plane (18) where the discharge port minimum point and described wears
Where axis mouth (20) highest point between plane (19), for pushing the polymer to move up, the reverse acting spiral (21)
Rotation direction is opposite with the pushing spiral (17).
Preferably, in the bottom surface of the material collection area (8), the material-pulling device is to fix for discharge port (23) setting
It is connected to the screw feeder of the shaft (22)；The screw feeder is arranged in material collection area (8) the highest point institute
In plane (16) and described wear where axis mouth (20) highest point between plane (19), for pushing the polymer to move down.
Preferably, the heating device is shell-and-tube heat exchanger, and the tube layer of the shell-and-tube heat exchanger includes multiple enterprising
The heating tubulation (10) gone out down；Polymer into heating devolatilization area (2) flows downward along heating tubulation (10) inner wall, from
Heating tubulation (10) lower port outflow, which enters, falls one area of a devolatilization (3).
Preferably, heating tubulation (10) inside for sky or is provided with plug-in part；The plug-in part is at least two phases
The flight to connect, the flight itself are welded in 180 ° of torsions and with heating tubulation (10) ontology on hand of helix
It connects, the direction of rotation of adjacent flight is mutually in 90 ° on the contrary, central point is connected.
Preferably, the liquid collecting falling-film distributor (12) is spherical or umbrella shape.
Preferably, the volatilization sub-export (11) is connected to volatile matter recovery system, the pressure of the volatile matter recovery system
Power is less than the pressure in the Devolatilization device.
Preferably, the shaft (22) and the gap worn between axis mouth (20) use mechanical seal.
After above-mentioned technical proposal, compared with prior art, have the advantages that
1. structure of the invention is compact, collect six grades of devolatilizations (shell dress) in a single device, equipment volume is small, material heating
Time is short, and heat transfer, mass-transfer efficiency are high, can effectively prevent fouling on device inner wall, polymer masses is avoided to remain in Devolatilization device
The inside causes polymeric long time high temperature ageing to decompose.
2. the present invention can be realized radial mixing function by the way that flight is arranged in the heating tubulation in shell-and-tube heat exchanger
Can, so that polymer is distributed more uniformly across in the radially temperature field of heating tubulation, the hot-spot for avoiding polymer is led
Polymer is caused to decompose.Flight is inserted into polymer core and goes to heat simultaneously, improves in the case where not increasing equipment volume
The effective heat transfer area of heater, improves the heat transfer area of the unit volume of heater in other words；In addition, the special construction
Polymer can effectively be thinned in the laminar boundary layer of heating zone inner surface, raising heat transfer coefficient, augmentation of heat transfer and mass transfer, force boundary
Face updates, to effectively improve devolatilization efficiency.
3. the liquid collecting falling-film distributor of Devolatilization device of the present invention is gone back while realizing that the good secondary cloth liquid of material is distributed
Have the function of falling liquid film abjection volatile matter, guarantees that material is uniformly distributed on the inner wall in falling liquid film devolatilization area and brokenly bubble devolatilization area.
4. the scraper plate of Devolatilization device of the present invention has both brokenly bubble and removes the function of salvage stores.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of polymer devolatilization apparatus in one embodiment of the invention；
Fig. 2 is the structural schematic diagram that tubulation is heated in one embodiment of the invention.
Appended drawing reference:
1- feeds distributed area, and 2- heating devolatilization area, 3- fall one area of a devolatilization, one area of 4- falling liquid film devolatilization, 5- fall a devolatilization two
Area, 2nd area of 6- falling liquid film devolatilization, 7- brokenly bubble devolatilization area, 8- material collection area, 9- feed inlet, 10- heat tubulation, 101- flight,
11- volatilization sub-export, 12- liquid collecting falling-film distributor, two area's inner walls of 13- falling liquid film devolatilization, 14- scraper plate, 15- brokenly bubble devolatilization area
Plane, 19- where plane, 17- pushing spiral, 18- discharge port minimum point where inner walls, 16- material collection area highest point
Plane, 20- where wearing axis mouth highest point wear axis mouth, 21- reverse acting spiral, 22- shaft, 23- discharge port, 24- collet, 25- heat exchange
Medium inlet, the outlet of 26- heat transferring medium.
Specific embodiment
Below in conjunction with attached drawing, the advantages of the present invention are further explained with specific embodiment.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
The "an" of the singular used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
Referring to attached drawing 1, the invention discloses a kind of polymer devolatilization apparatus, the Devolatilization device is set gradually from top to bottom
Have: charging distributed area 1, falls one area 3 of a devolatilization, one area 4 of falling liquid film devolatilization, falls two area 5 of a devolatilization, falling liquid film devolatilization heating devolatilization area 2
Two areas 6, brokenly bubble devolatilization area 7 and material collection area 8.
The charging distributed area 1 is provided with feed inlet 9, the feed inlet 9 be arranged in the charging distributed area 1 top or
Side, the polymer enter the Devolatilization device from the feed inlet 9.
The heating devolatilization area 2 is provided with heating device, for the polymer to be heated to temperature required for devolatilization
And having the function of devolatilization simultaneously, the polymer completes first order devolatilization herein.Preferably, the heating device changes for shell-and-tube
Hot device, the tube layer of the shell-and-tube heat exchanger include the heating tubulation 10 of multiple upper entering and lower leavings, polymer from the top of tube layer into
Enter lower part outflow；Heat transferring medium enters from the heat transferring medium import 25 of low spot on the left of shell, is situated between from the heat exchange of shell right side high point
26 discharge of matter outlet, heat transferring medium point out the residence time that can extend heat transferring medium from low spot into height, make heat transferring medium and gather
It closes object sufficiently to exchange heat, polymer is heated to temperature required for devolatilization, the heat transferring medium can preferably be high-temperature steam
Or other heat transferring mediums.The polymer entered from feed inlet 9 is evenly distributed in heating tubulation 10, along in heating tubulation 10
Wall surface flows downward, the devolatilization of the side Bian Jiare, enters from heating 10 lower port of tubulation outflow and falls one area 3 of a devolatilization.The heating column
It is empty inside pipe 10 or is provided with plug-in part.Referring to attached drawing 2, in the present embodiment, interpolation is provided in the heating tubulation 10
Part, the plug-in part are at least two flights 101 interconnected, and the flight 101 itself is in 180 ° of torsions and in spiral shell
With heating 10 ontology of tubulation welding on spin line direction, the direction of rotation of adjacent flight 101 is on the contrary, central point is connected, mutually
It is in 90 °.By the way that flight is arranged in heating tubulation 10, heat exchange area is on the one hand increased, heat transfer effect is improved；Another party
Face, flight can effectively be thinned polymer heating zone inner surface laminar boundary layer, improve the coefficient of heat transfer, augmentation of heat transfer and
Mass transfer forces interface to update, to effectively improve devolatilization efficiency.In some embodiments, the heating device is other types
Heat exchanger, in further embodiments, the heating device be electric heater or other suitable heaters.
It is described fall the setting of one area 3 of a devolatilization top with heat that devolatilization area 2 is connected to, lower part is connected to one area 4 of falling liquid film devolatilization,
After the polymer completes first order devolatilization in heating devolatilization area 2, from the polymer of devolatilization area 2 out is heated in the effect of gravity
One area 3 of a devolatilization is fallen through into drop, fluid column or shaped liquid film down, at this point, vapor phase space becomes larger, pressure reduction, vapour-liquid is connect
Contacting surface product increases, and volatile matter diffusion length shortens, and so as to effective devolatilization, completes second level devolatilization.It is described to fall item
One area 3 of devolatilization is provided with volatilization sub-export 11, and the volatilization sub-export 11 is connected to volatile matter recovery system, and the volatile matter returns
The pressure of receipts system is less than the pressure in the Devolatilization device, and the volatile matter of each region is waved from described in the Devolatilization device
Hair sub-export 11 is discharged in volatile matter recovery system.The volatilization sub-export 11 is on the upper side positioned at one area of item volatilization, 3 middle parts are fallen
Position.
One area 4 of falling liquid film devolatilization is equipped with liquid collecting falling-film distributor 12, and the liquid collecting falling-film distributor 12 is fixedly attached to
In shaft 22, and the motor outside the Devolatilization device bottom is connected to by shaft 22, the Devolatilization device bottom is equipped with and wears axis
Mouth 20, the shaft (22) are worn axis mouth 20 described in and are connect with the motor.Preferably, the shaft 22 and wear axis mouth 20 it
Between gap packing seal, labyrinth seal or other suitable sealings can also be used in some embodiments using mechanical seal
Form.In bottom, power is incoming from bottom for the motor setting of the application polymer devolatilization apparatus.And dynamic devolatilization in the prior art
Device power is mostly incoming from top, and the application provides a solution when being not suitable for incoming at the top of power for field condition,
Improve the applicability of Devolatilization device.Meanwhile the power-equipments such as motor are arranged in bottom, are also convenient for the inspection of field personnel
Maintenance, is conducive to the long-period stable operation of device.Preferably, 12 spherical shape of liquid collecting falling-film distributor or umbrella shape.It comes from
The polymer for falling one area 3 of a devolatilization is fallen in liquid collecting falling-film distributor 12, and liquid collecting falling-film distributor 12 is revolved driven by the motor
Turn, under the action of gravity and centrifugal force, the polymer forms uniform liquid film, volatile matter in liquid collecting falling-film distributor 12
Diffusion length shortens, and polymer surfaces updating decision, devolatilization effect is good, and polymer completes the devolatilization of third pole herein.Liquid film
It is equably thrown away to enter after flowing to 12 edge of liquid collecting falling-film distributor and falls two area 5 of a devolatilization.
It falling in two area 5 of a devolatilization, the contact area of polymer and vapour phase increases, and volatile matter diffusion length shortens, thus
It can effectively be removed, polymer completes fourth stage devolatilization herein.
The polymer pass through described in fall two area 5 of a devolatilization fall on the inner wall 13 in two area 6 of falling liquid film devolatilization formed it is uniform
Liquid film, and flow downward under the effect of gravity along the inner wall 13 in two area 6 of falling liquid film devolatilization, volatile matter diffusion length shortens at this time,
Polymer surfaces updating decision, volatile matter can be removed effectively, and polymer completes level V devolatilization herein, enter brokenly bubble devolatilization later
Area 7.
Brokenly bubble devolatilization area 7 is provided with multiple groups scraper plate 14, and described 14 one end of scraper plate approaches the shell in brokenly bubble devolatilization area 7
Internal wall 15, the other end are fixedly attached in the shaft 22.Scraper plate 14 is rotated with shaft 22 and is rotated, and pushes the polymer
Very thin liquid film is formed on the inner wall 15 in brokenly bubble devolatilization area 7, during scraper plate 14 pushes polymer to form film, scraper plate
The volatile matter steam bubble that has not enough time to rupture or be diffused into vapour phase having been formed in polymer can be forced brokenly bubble by 14, be made
The volatile matter being wrapped in liquid phase steam bubble enters in vapour phase, realizes depth devolatilization.Polymer completes the 6th grade of devolatilization herein.Together
When, it is preferable that scraper plate 14 is obliquely installed, and also pushes polymer flows down is dynamic to enter material collection area 8 while brokenly bubble.One
It is a little to implement, be not provided with brokenly bubble devolatilization area 7 between two area 6 of falling liquid film devolatilization and the material collection area 8, polymer along
The inner wall 13 in two area 6 of falling liquid film devolatilization, which flows downward, is directly entered material collection area 8.
The bottom surface or side in the material collection area 8 are provided with discharge port 23, and the axis mouth 20 of wearing is set to the material
8 bottom of collecting region.Preferably, the material collection area 8 is additionally provided with the material-pulling device for pushing polymer to be discharged from discharge port 23.
Referring to attached drawing 1, in the present embodiment, the side in the material collection area 8, the material-pulling device packet is arranged in the discharge port 23
Include the pushing spiral 17 and reverse acting spiral 21 for being fixedly connected on the shaft 22；The pushing spiral 17 is arranged in the discharge port
Where plane 18 where 23 minimum points and 8 highest point of material collection area between plane 16, for push the polymer to
Lower movement；The reverse acting spiral 21 setting plane 18 where the discharge port minimum point and it is described wear 20 highest point of axis mouth where
Between plane 19, for pushing the polymer to move up, the rotation direction of the reverse acting spiral 21 and 17 phase of pushing spiral
Instead.The pushing spiral 17 and reverse acting spiral 21 are screw feeder.The application is by being arranged pusher spiral shell in material collection area
Rotation 17 and reverse acting spiral 21, eliminate the dead zone in material collection area 8, and polymer is discharged from discharge port 23 completely.One
In a little embodiments, the bottom surface in the material collection area 8 is arranged in the discharge port 23, and the material-pulling device is is fixedly connected on
State the screw feeder of shaft 22；The screw feeder is arranged in plane 16 and institute where 8 highest point of material collection area
It states where wearing 20 highest point of axis mouth between plane 19, for pushing the polymer to move down, in these embodiments, material
Dead zone is similarly not present in collecting region 8.In some embodiments, material collection area 8 is not provided with pushing polymer from discharge port 23
The material-pulling device of discharge, the polymer into material collection area 8 flow under the action of gravity or pressure and from discharge ports 23
Discharge.
In the present embodiment, described to fall one area 3 of a devolatilization, one area 4 of falling liquid film devolatilization, fall two area 5 of a devolatilization, falling liquid film devolatilization two
Independent or united collet 24, stream in the collet are provided with outside the shell in area 6, brokenly bubble devolatilization area 7 and material collection area 8
It is connected with heat transferring medium, for keeping the temperature of above-mentioned zone in the optimum temperature section of devolatilization, improves devolatilization efficiency.Here institute
The independent collet said refers to that collet is separately provided outside each region housing controls the temperature of its inside；It is referred to herein
United collet refer to the shell of above-mentioned zone be arranged in a collet, above-mentioned zone is carried out by this collet
Temperature control.In some embodiments, described to fall that one area 3 of a devolatilization, one area 4 of falling liquid film devolatilization, to fall two area 5 of a devolatilization, falling liquid film de-
It waves and is provided with electric heat tracing device outside the shell in two areas 6, brokenly bubble devolatilization area 7 and material collection area 8, for the shell to above-mentioned zone
Carrying out heating keeps the temperature of above-mentioned zone in the optimum temperature section of devolatilization.Preferably, the electric heat tracing device is electric companion
The torrid zone.In further embodiments, described to fall one area 3 of a devolatilization, one area 4 of falling liquid film devolatilization, fall two area 5 of a devolatilization, falling liquid film devolatilization
It is provided with insulating layer outside the shell in two areas 6, brokenly bubble devolatilization area 7 and material collection area 8, since polymer is heating devolatilization area 2
Temperature needed for being heated to devolatilization, the thermal loss for reducing device by the way that insulating layer is arranged outside above-mentioned zone shell, can be with
Temperature of the temperature of above-mentioned zone needed for devolatilization is kept, to improve devolatilization efficiency.The insulating layer can be organic heat-insulated
Thermal insulation material or inorganic heat-insulating material.
In this application, the polymer includes polymer solution and polymer body.The usual volatile matter of polymer solution
Comparision contents it is high, volatile matter includes a large amount of solvent and other volatile matters, and the polymer devolatilization apparatus of the application can be effective
Devolatilization for polymer solution.The volatile matter that polymer body usually contains is fewer, based on polymer itself, the application
Polymer devolatilization apparatus remaining volatile matter can also be fallen too low effective for the devolatilization of polymer body.
The polymer devolatilization apparatus of the application, compact-sized, equipment volume is small, and material heating time is short, heat transfer, mass transfer effect
Rate is high, by the multiple regions being arranged from top to bottom, can carry out static, dynamic multi-level to polymer in suitable technological temperature
Dead zone is not present in efficient devolatilization, while uniform temperature fields in device.The polymer devolatilization apparatus devolatilization efficiency of the application
Height, devolatilization effect is good, being capable of the operation of long period efficient stable.
It should be noted that the embodiment of the present invention has preferable implementation, and not the present invention is made any type of
Limitation, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above equivalent effective
Embodiment, as long as without departing from the content of technical solution of the present invention, it is to the above embodiments according to the technical essence of the invention
Any modification or equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of polymer devolatilization apparatus, which is characterized in that
The Devolatilization device is provided with charging distributed area (1), heating devolatilization area (2) from top to bottom, falls one area of a devolatilization (3), drop
One area of film devolatilization (4) falls 2nd area of a devolatilization (5), 2nd area of falling liquid film devolatilization (6) and material collection area (8)；
The charging distributed area (1) is provided with feed inlet (9)；The heating devolatilization area (2) is provided with for by the polymer
It is heated to the heating device of devolatilization temperature；One area of a devolatilization (3) that falls is provided with volatilization sub-export (11)；The falling liquid film devolatilization
One area (4) is equipped with liquid collecting falling-film distributor (12), and liquid collecting falling-film distributor (12) is fixedly attached on shaft (22), the shaft
(22) motor being connected to outside the Devolatilization device bottom, the Devolatilization device bottom are equipped with and wear axis mouth (20), the shaft
(22) axis mouth (20) is worn described in passing through to connect with the motor；The bottom surface or side of the material collection area (8) are provided with discharging
Mouth (23), the axis mouth (20) of wearing are set to material collection area (8) bottom；
The polymer enters charging distributed area (1) from feed inlet (9), enters the heating devolatilization area (2), the polymerization later
Object heating devolatilization area (2) by the heating devices heat and carry out first order devolatilization, later enter fall one area of a devolatilization (3) into
The devolatilization of the row second level is then fallen into the liquid collecting falling-film distributor (12) in one area of falling liquid film devolatilization (4), liquid collecting falling-film distributor (12)
It rotates driven by the motor, makes the polymer under gravity and centrifugal force double action on liquid collecting falling-film distributor (12)
The liquid film to flow downward is formed, liquid film carries out the third level devolatilization during flowing downward landing, is thrown out of entrance later and falls
2nd area of devolatilization (5) carries out fourth stage devolatilization falling 2nd area of a devolatilization (5), falls on the inner wall in 2nd area of falling liquid film devolatilization (6) again later
(13) on, in 2nd area of falling liquid film devolatilization (6) progress level V devolatilization, then after, the polymer flows down is dynamic to enter material receipts
Ji Qu (8), and be discharged from discharge port (23)；Volatile matter in the polymer is from the volatilization sub-export for falling one area of a devolatilization (3)
(11) it is discharged.
2. Devolatilization device as described in claim 1, which is characterized in that
Brokenly bubble devolatilization area (7) is provided between 2nd area of falling liquid film devolatilization (6) and the material collection area (8)；
Brokenly bubble devolatilization area (7) is provided with multiple groups scraper plate (14), and described scraper plate (14) one end approaches brokenly bubble devolatilization area (7)
Inner wall (15), the other end is fixedly attached on the shaft (22)；
The polymer flows down on 2nd area of falling liquid film devolatilization (6) inner wall (13) is dynamic to enter brokenly bubble devolatilization area (7), scraper plate (14) with
Shaft (22) is rotated and is rotated, and the polymer is pushed to form liquid film on the inner wall (15) in brokenly bubble devolatilization area (7), meanwhile,
Volatile matter steam bubble through being present in polymer is racked by scraper plate pressure, and volatile matter enters in vapour phase from polymer liquid phase, complete
At the 6th grade of devolatilization, later, polymer flows down is dynamic to enter material collection area (8).
3. Devolatilization device as claimed in claim 2, which is characterized in that
It is described to fall one area of a devolatilization (3), one area of falling liquid film devolatilization (4), fall 2nd area of a devolatilization (5), 2nd area of falling liquid film devolatilization (6), brokenly bubble
It is provided with independent perhaps united collet (24) outside the shell of devolatilization area (7) and material collection area (8) or is provided with electric companion
Thermal, or it is provided with insulating layer；
Circulation has heat transferring medium in the collet (24).
4. Devolatilization device as described in claim 1, which is characterized in that
The material collection area (8) is provided with the material-pulling device for pushing polymer to be discharged from discharge port (23).
5. Devolatilization device as claimed in claim 4, which is characterized in that
In the side of the material collection area (8), the material-pulling device includes being fixedly connected on institute for discharge port (23) setting
State the pushing spiral (17) and reverse acting spiral (21) of shaft (22)；
Pushing spiral (17) setting is in plane (18) and the material collection area (8) where the discharge port (23) minimum point
Where highest point between plane (16), for pushing the polymer to move down；The reverse acting spiral (21) is arranged described
Plane (18) where discharge port minimum point and it is described wear axis mouth (20) highest point where between plane (19), for pushing described gather
It closes object to move up, the rotation direction of the reverse acting spiral (21) is opposite with the pushing spiral (17).
6. Devolatilization device as claimed in claim 4, which is characterized in that
In the bottom surface of the material collection area (8), the material-pulling device is described to be fixedly connected on for discharge port (23) setting
The screw feeder of shaft (22)；
The screw feeder setting wears axis mouth (20) most with described in plane (16) where material collection area (8) highest point
Where high point between plane (19), for pushing the polymer to move down from material collection area (8).
7. Devolatilization device as described in claim 1, which is characterized in that
The heating device is shell-and-tube heat exchanger, and the tube layer of the shell-and-tube heat exchanger includes the heating column of multiple upper entering and lower leavings
It manages (10)；
Polymer into heating devolatilization area (2) flows downward along heating tubulation (10) inner wall, under heating tubulation (10)
Port outflow, which enters, falls one area of a devolatilization (3).
8. Devolatilization device as claimed in claim 7, which is characterized in that
Sky is in heating tubulation (10) inside or is provided with plug-in part；
The plug-in part is at least two flights interconnected, and the flight itself is in 180 ° of torsions and in helix side
Upwards with heating tubulation (10) ontology welding, the direction of rotation of adjacent flight is mutually in 90 ° on the contrary, central point is connected.
9. Devolatilization device as described in claim 1, which is characterized in that
The liquid collecting falling-film distributor (12) is spherical or umbrella shape.
10. Devolatilization device as described in claim 1, which is characterized in that
The volatilization sub-export (11) is connected to volatile matter recovery system, and the pressure of the volatile matter recovery system is less than described de-
Wave the pressure in device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148309.8A CN109646975B (en) | 2019-02-28 | 2019-02-28 | Polymer devolatilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910148309.8A CN109646975B (en) | 2019-02-28 | 2019-02-28 | Polymer devolatilization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109646975A true CN109646975A (en) | 2019-04-19 |
| CN109646975B CN109646975B (en) | 2024-07-05 |
Family
ID=66123846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910148309.8A Active CN109646975B (en) | 2019-02-28 | 2019-02-28 | Polymer devolatilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109646975B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321754A (en) * | 2020-09-07 | 2021-02-05 | 万华化学集团股份有限公司 | Polymer solution devolatilization device and method |
| CN113368513A (en) * | 2021-06-17 | 2021-09-10 | 马鞍山同杰良生物材料有限公司 | Polylactic acid devolatilization device with built-in uniform distributor |
| CN113999332A (en) * | 2021-11-17 | 2022-02-01 | 华东理工大学 | Supercritical carbon dioxide assisted periodic devolatilization process and device |
| CN116753750A (en) * | 2023-08-21 | 2023-09-15 | 南京华兴压力容器制造有限公司 | Devolatilization preheating device and preheating method suitable for high-viscosity polymer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524632A (en) * | 2009-04-03 | 2009-09-09 | 华东理工大学 | Novel multilayer falling-strand polycondensation reactor and application thereof |
| CN201342253Y (en) * | 2009-01-06 | 2009-11-11 | 邹平福海科技发展有限公司 | Vacuum film wiping volatile removing device for sticky materials |
| CN108627031A (en) * | 2017-03-15 | 2018-10-09 | 单岩崑 | A kind of heat exchanger with flight |
| CN209734996U (en) * | 2019-02-28 | 2019-12-06 | 上海宥壹化工科技有限公司 | Polymer takes off and waves device |
-
2019
- 2019-02-28 CN CN201910148309.8A patent/CN109646975B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342253Y (en) * | 2009-01-06 | 2009-11-11 | 邹平福海科技发展有限公司 | Vacuum film wiping volatile removing device for sticky materials |
| CN101524632A (en) * | 2009-04-03 | 2009-09-09 | 华东理工大学 | Novel multilayer falling-strand polycondensation reactor and application thereof |
| CN108627031A (en) * | 2017-03-15 | 2018-10-09 | 单岩崑 | A kind of heat exchanger with flight |
| CN209734996U (en) * | 2019-02-28 | 2019-12-06 | 上海宥壹化工科技有限公司 | Polymer takes off and waves device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321754A (en) * | 2020-09-07 | 2021-02-05 | 万华化学集团股份有限公司 | Polymer solution devolatilization device and method |
| CN113368513A (en) * | 2021-06-17 | 2021-09-10 | 马鞍山同杰良生物材料有限公司 | Polylactic acid devolatilization device with built-in uniform distributor |
| CN113999332A (en) * | 2021-11-17 | 2022-02-01 | 华东理工大学 | Supercritical carbon dioxide assisted periodic devolatilization process and device |
| CN113999332B (en) * | 2021-11-17 | 2024-05-17 | 华东理工大学 | Supercritical carbon dioxide assisted periodic devolatilization process and device |
| CN116753750A (en) * | 2023-08-21 | 2023-09-15 | 南京华兴压力容器制造有限公司 | Devolatilization preheating device and preheating method suitable for high-viscosity polymer |
| CN116753750B (en) * | 2023-08-21 | 2023-11-03 | 南京华兴压力容器制造有限公司 | Devolatilization preheating device and preheating method suitable for high-viscosity polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109646975B (en) | 2024-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109646975A (en) | A kind of polymer devolatilization apparatus | |
| CN109731359B (en) | Polymer devolatilization device | |
| CN103591780B (en) | The main drying of the continuous drying system of slurry or powder | |
| CN1466485B (en) | Heat transfer device | |
| NO314290B1 (en) | Horizontal trough and column for contact with gas and liquid | |
| CN116747539B (en) | Film evaporator with feed supplement and film forming functions | |
| CN110652738A (en) | Sustainable membrane type desorption volatile device that gives heat | |
| CN103913049B (en) | The continuous drying system of slurry or powder | |
| CN105586061B (en) | A kind of high temperature coke powder cooling device | |
| CN209734997U (en) | Polymer takes off and waves device | |
| CN102908793B (en) | Horizontal type biaxial distillation apparatus suitable for continuous separation of viscous material series | |
| CN108635893A (en) | A kind of luwa evaporator | |
| CN209734996U (en) | Polymer takes off and waves device | |
| CN104368278B (en) | A kind of filtering type sulfur melting kettle | |
| CN111825488A (en) | High-efficiency energy-saving fermentation treatment device | |
| CN202096764U (en) | Scraper film evaporator | |
| CN207012946U (en) | Suitable for the chemical reaction kettle feeding device of high viscosity fluid | |
| CN110327640A (en) | A kind of push type internal circulation evaporator | |
| CN115970336A (en) | Self-adaptive control device for supercritical extraction separation device | |
| CN211770980U (en) | High-efficiency energy-saving fermentation treatment device | |
| CN206730534U (en) | A kind of efficient centrifugal scrapper thin film evaporator | |
| US2721730A (en) | Heat exchanger | |
| CN209809541U (en) | Horizontal unipolar automatically cleaning film evaporator | |
| CN205868237U (en) | Energy -efficient sludge water pyrolytic reaction equipment | |
| CN107715489B (en) | Distillation tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |