CN110437442A - A kind of preparation process and device of polyamide - Google Patents
A kind of preparation process and device of polyamide Download PDFInfo
- Publication number
- CN110437442A CN110437442A CN201910873091.2A CN201910873091A CN110437442A CN 110437442 A CN110437442 A CN 110437442A CN 201910873091 A CN201910873091 A CN 201910873091A CN 110437442 A CN110437442 A CN 110437442A
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- CN
- China
- Prior art keywords
- polymerization
- heat exchanger
- raw material
- pipe
- polyamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
- C08G69/28—Preparatory processes
Abstract
The present invention relates to the Preparation equipment technical fields of polyamide; and disclose a kind of preparation facilities of polyamide; including dissolving tank, filter, storage tank, thickener, polymerization pipe and Cast Strip pelleter; the top of the polymerization pipe is equipped with still; the inside of the polymerization pipe is equipped with polymerization inner tube; the inner cavity of the polymerization inner tube is set there are two heat exchanger, and the heat exchanger is communicated with the inside of polymerization pipe, and the side of polymerization pipe is equipped with the heat exchanger communicated with heat exchanger.The preparation process and device of the polyamide, the vapor and feedstock vapor generated by polymerization reaction enters the still at the top of polymerization pipe, so that vapor and feedstock vapor separation, feedstock vapor cooling for reflux is into polymerization inner tube, and utilize the upstream of vapor and feedstock vapor, the interior tube cavity of cooperation polymerization is located at the diameter at turbine and has ensured that polymerizable raw material prepares the quality of polyamide so that raw material is not easy to congeal into colloid at this less than the diameter design at other positions.
Description
Technical field
The present invention relates to the Preparation equipment field of polyamide, the preparation process and device of specially a kind of polyamide.
Background technique
Polyamide is commonly called as nylon, is the general name of the high polymer in macromolecular main chain repetitive unit containing amide group, mainly
By diamines, hexanedioic acid etc. be raw material polycondensation obtain, have good heat resistance, wear resistance, chemical resistance and from
Lubricity is widely applied in every field, and polyamide is various in style, have PA6, PA66, PA11, PA12, PA46, PA610,
PA612, PAl010 etc., wherein PA66's is most widely used, and yield is maximum.
During the preparation process, polymerization is an essential step to PA66, needs to use polymerization pipe or polymeric kettle, existing poly-
It closes pipe or polymeric kettle in the course of the polymerization process, has water and feed vaporization after raw material is heated, coagulated at the top opening of polymerization pipe or polymeric kettle
Form colloid, gelinite is easy to fall into raw material, the product quality after affecting polymerization, and the raw material uneven heating polymerizeing is even,
Equally affect the preparation quality of polyamide.
Summary of the invention
The present invention provides a kind of preparation process of polyamide and device, the high advantage of preparation quality for the polyamide having,
It solves the problems, such as to mention in background technique.
The invention provides the following technical scheme: a kind of preparation facilities of polyamide, including it is dissolving tank, filter, storage tank, dense
Contracting slot, polymerization pipe and Cast Strip pelleter, the top of the polymerization pipe are equipped with still, and the inside of the polymerization pipe is equipped with polymerization
The inner cavity of inner tube, the polymerization inner tube is set there are two heat exchanger, and the heat exchanger is communicated with the inside of polymerization pipe, and polymerization pipe
Side is equipped with the heat exchanger communicated with heat exchanger, and connecting between the heat exchanger and still has siphunculus, the heat exchanger
Center at be equipped with rotatable rotary shaft, the rotary shaft be equipped with and the discontiguous auger leaf of heat exchanger, the rotation
The top of shaft extends to the top for polymerizeing interior tube cavity and fixing sleeve equipped with turbine.
Preferably, the inner cavity fixing sleeve of the polymerization inner tube is equipped with the shunting disk being located above heat exchanger, the shunting disk
Top be equipped with feed pipe, and the bottom of shunting disk offers the leak of equidistant arrangement, and the shunting disk movable set is rotating
The outside of axis.
Preferably, the auger leaf is located above and below two heat exchangers.
Preferably, tube cavity is located at the diameter that the diameter at turbine is less than other positions in the polymerization.
Preferably, the heat exchanger is connected with the bottom for polymerizeing tube cavity a siphunculus, and heat exchanger and still it
Between siphunculus and polymerize tube cavity top between connect have corresponding siphunculus.
Preferably, the preparation process of the polyamide is as follows:
S1 prepares raw material diamines, hexanedioic acid solution, carries out desalting processing；
S2 will be handled to obtain material solution in treated raw material is placed in DEG C dissolving tank, recycle filter into
Gained raw material is finally placed in storage tank by row filtration treatment；
S3 is added defoaming agent, NAPO into storage tank and is further processed, then will treated that raw material is transferred in thickener carries out
Concentration；
Raw material after concentration is added in shunting disk S4 by feed pipe, and raw material is flowed down by the leak for shunting pan bottom, and
It is handled by exchanger heat and completes polymerization, and be delivered to from the pelleter of Cast Strip from the bottom of polymerization pipe, carry out pelletizing, polymerization generates
Water vapour and part vaporization raw material pass through shunting disk and act on turbine so that turbine drives the rotation of auger leaf to polymerization
The raw material of internal tube is stirred, water vapour and part vaporization raw material enter still, by still make water vapour and
Part vaporization raw material separates, and makees heat source in the aggregated pipe of water vapor stream.
The present invention have it is following the utility model has the advantages that
The preparation process and device of the polyamide, the vapor and feedstock vapor generated by polymerization reaction enter polymerization pipe
The still at top, so that vapor and feedstock vapor separation, feedstock vapor cooling for reflux are steamed into polymerization inner tube, and using water
The upstream of gas and feedstock vapor, cooperation polymerize interior tube cavity and are located at the diameter design that the diameter at turbine is less than other positions, make
It obtains raw material to be not easy to congeal into colloid at this, has ensured that polymerizable raw material prepares the quality of polyamide, while vapor and feedstock vapor
Upstream act on turbine so that turbine drives the rotation of auger leaf, so that raw material thermally equivalent to be polymerized, further protect
The preparation quality of polyamide is hindered.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure of the invention polymerization pipe cut away view；
Fig. 3 is partial enlargement diagram at the A of Fig. 2 of the present invention；
Fig. 4 is the schematic top plan view of Fig. 2 structure turbine of the present invention.
In figure: 1, dissolving tank；2, filter；3, storage tank；4, thickener；5, polymerization pipe；51, still；52, in polymerization
Pipe；53, heat exchanger；54, rotary shaft；55, auger leaf；56, turbine；57, shunting disk；6, Cast Strip pelleter；7, heat exchange
Device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of preparation facilities of polyamide, including it is dissolving tank 1, filter 2, storage tank 3, thickener 4, poly-
Pipe 5 and Cast Strip pelleter 6 are closed, the top of polymerization pipe 5 is equipped with still 51, and the inside of polymerization pipe 5 is equipped with polymerization inner tube 52, gathers
It closes 52 inner cavity of inner tube and is located at the diameter that the diameter at turbine 56 is less than other positions, the effect of vapor and feedstock vapor to turbine
Power increases, it is ensured that turbine is able to drive the rotation of auger leaf 55, and the inner cavity fixing sleeve of polymerization inner tube 52, which is equipped with, is located at heat exchanger
The top of the shunting disk 57 of 53 tops, shunting disk 57 is equipped with feed pipe, and the bottom of shunting disk 57 offers the leakage of equidistant arrangement
Mouthful, 57 movable set of shunting disk is added on shunting disk 57 in the outside of rotary shaft 54, raw material by feed pipe, and raw material is added
Flow be greater than its flow by leak so that raw material is evenly spread in tube body, there are two the inner cavity of polymerization inner tube 52 is set
Heat exchanger 53, heat exchanger 53 are communicated with the inside of polymerization pipe 5, and the side of polymerization pipe 5 is equipped with the heat communicated with heat exchanger 53 and hands over
The bottom of parallel operation 7, heat exchanger 7 and 5 inner cavity of polymerization pipe, which is connected, siphunculus, and the siphunculus between heat exchanger 7 and still 51
Connecting between the top of 5 inner cavity of polymerization pipe has corresponding siphunculus, flows separately through 5 He of polymerization pipe by the heat source of heat exchanger 7
The heat exchanger 53 polymerizeing inside inner tube 52, it is ensured that the raw material inside polymerization inner tube 52 is heated more evenly, and polymerization reaction is more abundant, and
The heat source for separating vapor to still 51 utilizes, and saves cost, there is logical connection between heat exchanger 7 and still 51
It manages, rotatable rotary shaft 54 is equipped at the center of heat exchanger 53, rotary shaft 54 is equipped with and the discontiguous spiral of heat exchanger 53
Paddle 55, auger leaf 55 are located above and below two heat exchangers 53, are steamed using the water that polymerizable raw material reaction generates
Gas and feedstock vapor upstream act on turbine 56, so that turbine 56 drives auger leaf 55 to rotate, so that raw material is uniformly mixed
It is sufficiently heated, it is ensured that raw material sufficiently reacts, so that the preparation facilities of polyamide, the top of rotary shaft 54 extends to polymerization inner tube 52
Simultaneously fixing sleeve is equipped with turbine 56 at the top of inner cavity.
The preparation process of polyamide is as follows:
S1 prepares raw material diamines, hexanedioic acid solution, carries out desalting processing；
S2, by treated, raw material is placed in 50 DEG C of dissolving tank 1 is handled to obtain material solution, recycles filter
2 are filtered processing, and finally gained raw material is placed in storage tank 3；
S3, into storage tank 3, addition defoaming agent, NA3PO2 are further processed, then raw material is transferred in thickener 4 by treated
Carry out concentration；
S4, by the raw material after concentration by feed pipe be added shunting disk 57 in, raw material by 57 bottom of shunting disk leak stream
Under, and polymerization is completed by the heat treatment of heat exchanger 53, and be delivered to from Cast Strip pelleter 6 from the bottom of polymerization pipe 5, it is cut
Grain, the water vapour and part vaporization raw material for polymerizeing generation pass through shunting disk 57 and act on turbine 56, so that turbine 56 drives spiral shell
The rotation of rotation paddle 55 is stirred the raw material inside polymerization inner tube 52, and water vapour and part vaporization raw material enter still
51, by still 51 water vapour is separated with part vaporization raw material, makees heat source in the aggregated pipe 5 of water vapor stream.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of preparation facilities of polyamide, including dissolving tank (1), filter (2), storage tank (3), thickener (4), polymerization pipe
(5) and Cast Strip pelleter (6), it is characterised in that: the top of the polymerization pipe (5) is equipped with still (51), the polymerization pipe
(5) inside is equipped with polymerization inner tube (52), and the inner cavity of polymerization inner tube (52) is set there are two heat exchanger (53), the heat exchanger
(53) it is communicated with the inside of polymerization pipe (5), and the side of polymerization pipe (5) is equipped with the heat exchanger (7) communicated with heat exchanger (53),
Connecting between the heat exchanger (7) and still (51) has siphunculus, is equipped at the center of the heat exchanger (53) rotatable
Rotary shaft (54), the rotary shaft (54) are equipped with and the discontiguous auger leaf (55) of heat exchanger (53), the rotary shaft
(54) top extends to the top of polymerization inner tube (52) inner cavity and fixing sleeve equipped with turbine (56).
2. a kind of preparation facilities of polyamide according to claim 1, it is characterised in that: described to polymerize the interior of inner tube (52)
Chamber fixing sleeve is equipped with the shunting disk (57) being located above heat exchanger (53), and the top of the shunting disk (57) is equipped with feed pipe, and
The bottom of shunting disk (57) offers the leak of equidistant arrangement, and shunting disk (57) movable set is in the outer of rotary shaft (54)
Portion.
3. a kind of preparation facilities of polyamide according to claim 1, it is characterised in that: the auger leaf (55) sets
Above and below two heat exchangers (53).
4. a kind of preparation facilities of polyamide according to claim 1, it is characterised in that: polymerization inner tube (52) inner cavity
Diameter at turbine (56) is less than the diameter at other positions.
5. a kind of preparation facilities of polyamide according to claim 1, it is characterised in that: the heat exchanger (7) and poly-
The bottom for closing pipe (5) inner cavity, which is connected, siphunculus, and in the siphunculus and polymerization pipe (5) between heat exchanger (7) and still (51)
Connecting between the top of chamber has corresponding siphunculus.
6. a kind of preparation facilities of polyamide according to claim 1, it is characterised in that: the preparation process of the polyamide
It is as follows:
S1 prepares raw material diamines, hexanedioic acid solution, carries out desalting processing；
S2 will be handled to obtain material solution, recycles filter in treated raw material is placed in 50 DEG C of dissolving tank (1)
(2) it is filtered processing, finally gained raw material is placed in storage tank (3)；
S3, into storage tank (3), addition defoaming agent, NA3PO2 are further processed, then raw material is transferred in thickener (4) by treated
Carry out concentration；
S4, by the raw material after concentration by feed pipe be added shunting disk (57) in, raw material by shunting disk (57) bottom leak stream
Under, and polymerization is completed by heat exchanger (53) heat treatment, and be delivered at Cast Strip pelleter (6) from the bottom of polymerization pipe (5), into
Row pelletizing, the water vapour and part vaporization raw material for polymerizeing generation pass through shunting disk (57) and act on turbine (56), so that turbine
(56) raw material for driving auger leaf (55) rotation internal to polymerization inner tube (52) is stirred, and water vapour and part vaporize former
Material enters still (51), by still (51) water vapour is separated with part vaporization raw material, the aggregated pipe of water vapor stream
(5) make heat source in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873091.2A CN110437442A (en) | 2019-09-16 | 2019-09-16 | A kind of preparation process and device of polyamide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910873091.2A CN110437442A (en) | 2019-09-16 | 2019-09-16 | A kind of preparation process and device of polyamide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110437442A true CN110437442A (en) | 2019-11-12 |
Family
ID=68440296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910873091.2A Pending CN110437442A (en) | 2019-09-16 | 2019-09-16 | A kind of preparation process and device of polyamide |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328539A (en) * | 2010-12-02 | 2013-09-25 | Mt创新中心名下斯塔米卡邦有限责任公司 | Method of making polyamide 66 |
| CN106732037A (en) * | 2016-12-27 | 2017-05-31 | 佛山市佛禅健康管理有限公司 | A kind of liquid charging stock mixing arrangement |
| CN108586731A (en) * | 2018-06-12 | 2018-09-28 | 江苏海阳锦纶新材料有限公司 | A kind of novel pre-polymerization device of PA6/66 productions |
| CN108911418A (en) * | 2018-08-14 | 2018-11-30 | 朋仁锋 | A kind of coal chemical industry heavy oil sewage treatment process |
| CN110054775A (en) * | 2019-04-26 | 2019-07-26 | 东莞市江南现代远程信息研究院 | A kind of polyesteramide continuous production technology |
-
2019
- 2019-09-16 CN CN201910873091.2A patent/CN110437442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103328539A (en) * | 2010-12-02 | 2013-09-25 | Mt创新中心名下斯塔米卡邦有限责任公司 | Method of making polyamide 66 |
| CN106732037A (en) * | 2016-12-27 | 2017-05-31 | 佛山市佛禅健康管理有限公司 | A kind of liquid charging stock mixing arrangement |
| CN108586731A (en) * | 2018-06-12 | 2018-09-28 | 江苏海阳锦纶新材料有限公司 | A kind of novel pre-polymerization device of PA6/66 productions |
| CN108911418A (en) * | 2018-08-14 | 2018-11-30 | 朋仁锋 | A kind of coal chemical industry heavy oil sewage treatment process |
| CN110054775A (en) * | 2019-04-26 | 2019-07-26 | 东莞市江南现代远程信息研究院 | A kind of polyesteramide continuous production technology |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
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| RJ01 | Rejection of invention patent application after publication |