CN208151249U - A kind of nylon polymerization device - Google Patents
A kind of nylon polymerization device Download PDFInfo
- Publication number
- CN208151249U CN208151249U CN201820323450.8U CN201820323450U CN208151249U CN 208151249 U CN208151249 U CN 208151249U CN 201820323450 U CN201820323450 U CN 201820323450U CN 208151249 U CN208151249 U CN 208151249U
- Authority
- CN
- China
- Prior art keywords
- tower
- polymerization
- nylon
- outlet
- packed tower
- 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.)
- Active
Links
Landscapes
- Polyamides (AREA)
Abstract
The utility model relates to a kind of nylon polymerization devices, the nylon polymerization device includes polymerization tower, packed tower, condensing unit, liquid seal device, the gaseous phase outlet of the polymerization tower is connected with the bottom of the packed tower, the gaseous phase outlet of the packed tower is connected with the entrance of the condensing unit, and the outlet of the condensing unit connects the liquid seal device；Spray equipment is equipped at the top of the packed tower, the liquid-phase outlet of the packed tower connects triple valve, and the first outlet of the triple valve connects the polymerization tower, and the second outlet of the triple valve connects the liquid seal device.The resulting nylon product viscosity of the utility model is adjustable, and polymer viscosity fluctuates small, even molecular weight distribution, help to obtain the nylon product of high quality.
Description
Technical field
The utility model relates to textile chemical fiber production equipment, especially a kind of nylon polymerization device.
Background technique
Polyamide (trade name polyamide fibre) is commonly called as nylon, is important synthetic fibers, since polyamide melt intensity is very low, nothing
Method stretching and granulation can only use hot-cut underwater or air-cooled pelletizing.The particle come out in this way in the form of sheets, is slice.It is original with polyamide fibre
Expect resulting slice, i.e. slices of caprone.Such as polyamide 6 section, it is commonly called as chinlon 6 section, nylon 6 slice.Chinlon 6 section is usually in
White bar graininess, fusing point are 210-220 DEG C, and decomposition temperature is 300 DEG C or so.It dissolves in phenol and the concentrated sulfuric acid of heat,
Electrical insulation capability is superior, alkaline-resisting, good corrosion resistance.
Nylon forms mainly by binary acid and diamine, or by amino acid polycondensation, according to the difference of nylon viscosity, application
Field is different, if relative viscosity (usually with respect to the viscosity of 96% concentrated sulfuric acid) is used for conventional spinning in 2.4-2.6, glues relatively
That spends 2.7-3.0 is applied to carpet, fishing net etc., and relative viscosity is 3.2 or more for cord fabric spinning etc., and therefore, nylon is cut
The viscosity of piece is the key index in production, and usual relative viscosity numerical value is low viscosity 2.3 or so, and 2.4-2.7 is medium viscosity,
2.7-2.9 is high viscosity.
During preparing nylon, the molecular weight polymers that starting monomer and polymerizable raw material generate can be carried by steam, be
The utilization rate for improving raw material, usually imports other devices for this some vapor, is back to reaction unit after processing, however, this
Partially recycled material is since average molecular weight is lower, for the product of the higher molecular weight generated in reaction unit,
The average molecular weight that final product can substantially be dragged down since molecular weight is bigger, and then is difficult to obtain the nylon chips of high viscosity requirement
Product.
The method that patent application CN102060992A discloses a kind of method production nylon chips will carry out aqueous after water separation
The extraction slice that rate is 8-15% is sent into drying tower and carries out solid-phase tack producing, and at 130 DEG C, lower section is dry for the temperature control of upper section drying tower
The temperature of dry tower is controlled at 175-190 DEG C, is stopped 24 hours.This method due to be directly drying tower carry out solid-phase tack producing, according to
Product viscosity is promoted by dry, therefore viscosifies limited extent；And its technological temperature is excessively high, and technique controlling difficulty is big, is easy
Existing drying tower glues tower phenomenon.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of nylon polymerization device, it is viscous to solve nylon chips in the prior art
The uncontrollable problem of degree.
In the utility model, the nylon polymerization device is the main device of synthesizing polyamides, and nylon chips are common at present
Two-phase method polymerization, i.e., first carry out pre-polymerization in prepolymerization device by raw material with first condition, and prepolymerization product polymerize anti-after being sent into
Device is answered to generate polyamide under a second condition.When using two-phase method polymerization technique, in polymerization tower described in the utility model
Fluid inlet connects nylon prepolymerization device.
In the utility model, the steam generated in polymerization tower contains the small molecule polymerization that starting monomer and polymerizable raw material generate
Object, steam enter uplink after packed tower, and after the degassing desalination water washing sprayed through spray equipment, remaining vapor is through condensing unit
After being condensed into water, liquid seal device is drained into, plays the effect of fluid-tight；The molecular weight polymers quilt that starting monomer and polymerizable raw material generate
It liquefies and condenses after washing, fall in filler tower bottom.
When producing high visocity nylon slice, in the triple valve of packed tower connection, the second outlet that is connect with liquid seal device
It opens, the monomer of condensation and molecular weight polymers is drained into liquid seal can, enter recovery system later.When low viscosity product in production
When, the first outlet that triple valve connects the polymerization tower is opened, monomer and molecular weight polymers are sent into polymerization tower.Pass through three
The control of product viscosity is realized in the adjusting of port valve.Meanwhile the monomer of condensation and small molecule polymerize by device described in the utility model
After polymerization tower is discharged in object, it can guarantee that polymerization reaction is abundant, polymer viscosity fluctuates small, even molecular weight distribution, is conducive to improve
Product quality.
To solve this technical problem, the utility model takes following scheme：
A kind of nylon polymerization device, the nylon polymerization device include polymerization tower, packed tower, condensing unit, liquid seal device,
The gaseous phase outlet of the polymerization tower is connected with the bottom of the packed tower, the gaseous phase outlet of the packed tower and the condensing unit
Entrance be connected, the outlet of the condensing unit connects the liquid seal device；Spray equipment is equipped at the top of the packed tower, it is described
The liquid-phase outlet of packed tower connects triple valve, and the first outlet of the triple valve connects the polymerization tower, and the of the triple valve
Two outlets connect the liquid seal device.
Further, the fluid inlet of the polymerization tower is also connected with nylon prepolymerization device.
Further, the polymerization tower top is equipped with tubular heat exchanger, and lower part is equipped with coil heat exchanger.
Further, the condensing unit is condenser.
Further, the liquid seal device is water sealed tank.
Further, the liquid-phase outlet of the packed tower is located at the bottom of packed tower.
Further, the bottom of the packed tower is also connected with safety valve.
By using preceding solution, the resulting nylon product viscosity of the utility model is adjustable, polymer viscosity fluctuation
Small, even molecular weight distribution help to obtain the nylon product of high quality.
Detailed description of the invention
Fig. 1 is the nylon polymerization apparatus structure schematic diagram that the utility model embodiment 1 provides；
Fig. 2 is the nylon polymerization apparatus structure schematic diagram that the utility model embodiment 2 provides；
Fig. 3 is the nylon polymerization apparatus structure schematic diagram that the utility model embodiment 3 provides.
Specific embodiment
Technical solutions of the utility model are further elaborated with reference to the accompanying drawings and examples, present embodiment can have
Different forms and it is not understood as limited to explanation set forth herein.Identical appended drawing reference represents identical always in text
Element, similar appended drawing reference represent similar element.
Embodiment 1：
With reference to Fig. 1, nylon polymerization device includes polymerization tower 1, packed tower 2, condenser 3, triple valve 4 and liquid seal can 12, institute
The gaseous phase outlet for stating polymerization tower 1 is connected with the bottom of the packed tower 2, the gaseous phase outlet and the condenser of the packed tower 2
3 entrance is connected, and the outlet of the condenser 3 connects the liquid seal can 12；Spray equipment 7 is equipped at the top of the packed tower 2,
The liquid-phase outlet connection triple valve 4 of the packed tower 2, the first outlet connection polymerization tower 1 of the triple valve 4, described three
The second outlet of port valve 4 connects the liquid seal can 12.
When producing high visocity nylon slice, in the triple valve 4 that packed tower 2 connects, second connect with liquid seal can 12 goes out
Mouth is opened, and the monomer of condensation and molecular weight polymers are drained into liquid seal can 12, enters recovery system later.When low viscosity in production
When product, the first outlet that triple valve 4 connects the polymerization tower 1 is opened, monomer and molecular weight polymers are sent into polymerization tower
1.By the adjusting of triple valve, the control of product viscosity is realized.Meanwhile device described in the utility model is by the monomer of condensation and small
After polymerization tower is discharged in Molecularly Imprinted Polymer, it can guarantee that polymerization reaction is abundant, polymer viscosity fluctuation is small, and even molecular weight distribution has
Conducive to raising product quality.
Embodiment 2：
With reference to Fig. 2, nylon polymerization device includes prepolymerization tower 0, polymerization tower 1, packed tower 2, condenser 3, triple valve 4 and liquid
The product exit of sealed cans 12, prepolymerization tower 0 is connected with polymerization tower 1, the bottom of the gaseous phase outlet of polymerization tower 1 and the packed tower 2
It is connected, the gaseous phase outlet of the packed tower 2 is connected with the entrance of the condenser 3, described in the outlet connection of the condenser 3
Liquid seal can 12；It is equipped with spray equipment 7 at the top of the packed tower 2, the liquid-phase outlet of the packed tower 2 connects triple valve 4, and described three
The first outlet of port valve 4 connects the polymerization tower 1, and the second outlet of the triple valve 4 connects the liquid seal can 12.
The prepolymerization of raw material is completed in prepolymerization tower 0, product is sent into polymerization tower 1 and carries out subsequent reactions.The covering device is suitble to
The technique of two-phase method synthesizing polyamides.
1 top of polymerization tower be equipped with tubular heat exchanger, lower part be equipped with coil heat exchanger, guarantee melt heated in polymerization tower and
It is cooling uniform.
When producing high visocity nylon slice, in the triple valve 4 that packed tower 2 connects, second connect with liquid seal can 12 goes out
Mouth is opened, and the monomer of condensation and molecular weight polymers are drained into liquid seal can 12, enters recovery system later.When low viscosity in production
When product, the first outlet that triple valve 4 connects the polymerization tower 1 is opened, monomer and molecular weight polymers are sent into polymerization tower
1.By the adjusting of triple valve, the control of product viscosity is realized.Meanwhile device described in the utility model is by the monomer of condensation and small
After polymerization tower is discharged in Molecularly Imprinted Polymer, it can guarantee that polymerization reaction is abundant, polymer viscosity fluctuation is small, and even molecular weight distribution has
Conducive to raising product quality.
Embodiment 3：
With reference to Fig. 3, nylon polymerization device includes prepolymerization tower 0, polymerization tower 1, packed tower 2, condenser 3, triple valve 4, peace
The product exit of full valve 8 and liquid seal can 12, prepolymerization tower 0 is connected with polymerization tower 1, top gaseous phase outlet, the polymerization of prepolymerization tower 0
The gaseous phase outlet of tower 1 is connected by jet chimney 5 with the bottom of the packed tower 2, and the gaseous phase outlet of the packed tower 2 passes through
Jet chimney 6 is connected with the entrance of the condenser 3, and the outlet of the condenser 3 connects the liquid by condensate liquid pipeline 13
Sealed cans 12；It is equipped with spray equipment 7 at the top of the packed tower 2, the liquid-phase outlet of the packed tower 2 connects triple valve 4, and described three
The first outlet of port valve 4 connects the polymerization tower 1 by condensing water conduit 9, and the second outlet of the triple valve 4 passes through condensation
Waterpipe 10 connects the liquid seal can 12.Safety valve 8 is connected by jet chimney 11 with the bottom of packed tower 2, and tower pressure interior force is worked as
When excessively high, opening the safety-valve 8 steam in tower and material is discharged in time, prevents pressure in polymerization tower 1 from continuing to increase and occur quick-fried
Fried and damage equipment.
The prepolymerization of raw material is completed in prepolymerization tower 0, product is sent into polymerization tower 1 and carries out subsequent reactions.Prepolymerization tower 0 and poly-
The steam generated in conjunction tower 1, which is all pooled in packed tower, is de-gassed desalting processing, and polymerization tower reuse can be entered after condensation.The set
Device is suitble to the technique of two-phase method synthesizing polyamides, higher compared to the device raw material availability in embodiment 2.
When producing high visocity nylon slice, in the triple valve 4 that packed tower 2 connects, second connect with liquid seal can 12 goes out
Mouth is opened, and the monomer of condensation and molecular weight polymers are drained into liquid seal can 12, enters recovery system later.When low viscosity in production
When product, the first outlet that triple valve 4 connects the polymerization tower 1 is opened, monomer and molecular weight polymers are sent into polymerization tower
1.By the adjusting of triple valve, the control of product viscosity is realized.Meanwhile device described in the utility model is by the monomer of condensation and small
After polymerization tower is discharged in Molecularly Imprinted Polymer, it can guarantee that polymerization reaction is abundant, polymer viscosity fluctuation is small, and even molecular weight distribution has
Conducive to raising product quality.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.
Claims (7)
1. a kind of nylon polymerization device, it is characterised in that：The nylon polymerization device include polymerization tower, packed tower, condensing unit,
Liquid seal device, the gaseous phase outlet of the polymerization tower are connected with the bottom of the packed tower, the gaseous phase outlet of the packed tower and institute
The entrance for stating condensing unit is connected, and the outlet of the condensing unit connects the liquid seal device；Spray is equipped at the top of the packed tower
Shower device, the liquid-phase outlet of the packed tower connect triple valve, and the first outlet of the triple valve connects the polymerization tower, described
The second outlet of triple valve connects the liquid seal device.
2. nylon polymerization device according to claim 1, it is characterised in that：The fluid inlet of the polymerization tower is also connected with Buddhist nun
Imperial prepolymerization device.
3. nylon polymerization device according to claim 1, it is characterised in that：The polymerization tower top exchanges heat equipped with tubulation
Device, lower part are equipped with coil heat exchanger.
4. nylon polymerization device according to claim 1, it is characterised in that：The condensing unit is condenser.
5. nylon polymerization device according to claim 1, it is characterised in that：The liquid seal device is water sealed tank.
6. nylon polymerization device according to claim 1, it is characterised in that：The liquid-phase outlet of the packed tower is located at filler
The bottom of tower.
7. nylon polymerization device according to claim 1, it is characterised in that：The bottom of the packed tower is also connected with safety
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323450.8U CN208151249U (en) | 2018-03-09 | 2018-03-09 | A kind of nylon polymerization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820323450.8U CN208151249U (en) | 2018-03-09 | 2018-03-09 | A kind of nylon polymerization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208151249U true CN208151249U (en) | 2018-11-27 |
Family
ID=64391189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820323450.8U Active CN208151249U (en) | 2018-03-09 | 2018-03-09 | A kind of nylon polymerization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208151249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818892A (en) * | 2019-12-13 | 2020-02-21 | 万华化学集团股份有限公司 | Preparation method and device of nylon |
-
2018
- 2018-03-09 CN CN201820323450.8U patent/CN208151249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110818892A (en) * | 2019-12-13 | 2020-02-21 | 万华化学集团股份有限公司 | Preparation method and device of nylon |
| CN110818892B (en) * | 2019-12-13 | 2022-07-12 | 万华化学集团股份有限公司 | Preparation method and device of nylon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105885037A (en) | Production equipment and method of polyamide 5X | |
| US8759475B2 (en) | Continuous production of polyamides | |
| CN100398707C (en) | Method for preparing meta aromatic polyamide fiber | |
| CN105013196B (en) | For preparing the device of polyamide, the production equipment of raw material method for concentration and polyamide, production method | |
| CN1326908C (en) | Manufacturing method of full extinction polyamide 66 resin and fiber | |
| CN110918018A (en) | Combined heat removal method for kettle type slurry polyethylene reactor | |
| CN208151249U (en) | A kind of nylon polymerization device | |
| JP5957774B2 (en) | Method and apparatus for continuous solution polymerization | |
| CN111424328B (en) | Nylon melt direct spinning method comprising vapor extraction and liquid phase extraction | |
| JPH0774257B2 (en) | Method and plant for separating synthetic water-soluble polymer | |
| CN204768734U (en) | A production facility for preparing device and polyamide of polyamide | |
| CN105013205B (en) | For preparing the device of polyamide, the production equipment of decompression method and polyamide, production method | |
| CN204767455U (en) | A production facility for preparing device and polyamide 5X of polyamide | |
| CN204779449U (en) | Polyamide 5X's production facility | |
| JP2006503174A (en) | Continuous production method of ethylene-vinyl acetate copolymer and reaction system | |
| CN100547295C (en) | Utilize flash distillation to improve the method that heat was changed/accompanied to the bisphenol A device vapour system | |
| CN105085904B (en) | It is a kind of to be used to prepare polyamide 5X device, eventually poly- method and polyamide 5X production equipment, method | |
| CN106084283B (en) | Production of PVC recycling monomer processing unit and Production of PVC recycling monomer processing method | |
| CN105885040B (en) | It is used to prepare the device of polyamide, the production equipment of Prepolymerizing process and polyamide, production method | |
| CN111116776A (en) | Method for improving gas-phase external circulation heat removal capacity of polymerization kettle | |
| JPS5956410A (en) | Removal of unreacted vinyl chloride monomer | |
| CN109881271A (en) | The method and apparatus of spinning | |
| US3258313A (en) | Polymerisation apparatus | |
| CN204768575U (en) | A production facility for preparing device and polyamide 5X of polyamide | |
| CN204779451U (en) | A production facility for preparing polyamide 5X's device and polyamide 5X |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |