CN207108892U - A kind of semicontinuous nylon66 fiber polyplant - Google Patents
A kind of semicontinuous nylon66 fiber polyplant Download PDFInfo
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- CN207108892U CN207108892U CN201721009808.1U CN201721009808U CN207108892U CN 207108892 U CN207108892 U CN 207108892U CN 201721009808 U CN201721009808 U CN 201721009808U CN 207108892 U CN207108892 U CN 207108892U
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Abstract
It the utility model is related to a kind of semicontinuous nylon66 fiber polyplant; including concentrating and preheating device, primary concentration kettle, two level tubular type concentration kettle and polymeric kettle; the water-soluble liquid pipe of nylon salt is connected with concentrating and preheating device; the discharging opening of concentrating and preheating device is connected with primary concentration kettle; the discharging opening of primary concentration kettle is connected through saline solution delivery pump with two level tubular type concentration kettle; the discharging opening of two level tubular type concentration kettle is connected with each polymeric kettle, and the discharging opening of each polymeric kettle is connected with pelleter respectively；Gaseous phase outlet at the top of two level tubular type concentration kettle is connected by triple valve with the circumference tangential inlet of cyclone, bottom row's mouth of cyclone is connected with liquid seal trough, the top exit of cyclone is connected with the lower entrances of vacuum tower, and the upper steam outlet of vacuum tower is connected by second steam reuse pipe and steam reuse valve with the entrance of primary concentration kettle heating coil and the pipe heater of primary concentration kettle half.The device disclosure satisfy that the production of be pilot, and the fully waste heat of recycling system.
Description
Technical field
A kind of polyplant is the utility model is related to, more particularly to a kind of semicontinuous nylon66 fiber polyplant, belongs to nylon
Production equipment technology.
Background technology
In the prior art, nylon66 fiber directly produces nylon66 fiber melt, then pass through pelletizing using hexamethylene diamine and adipic acid as raw material
Machine is granulated.Dominating process route is divided into continuous polymerization, batchwise polymerization, semi-continuous polymerization etc..
Continuous polymerization unit uniform in quality is stable, in the absence of the difference between batchwise polymerization batch, raw materials consumption compared with
Low, single line production capacity is larger, and technological operation is easier to enter full-automatic state, and operating personnel's work load is small, be applicable directly spinning filament and
Produce in enormous quantities；Production procedure is grown, and equipment is complicated, takes up an area greatly, and investment is larger, and switching kind is dumb.
The each stage of reaction exhaust of continuous polymerization unit and heat consumption are stable, will can be given after the steam treatment of high level
The equipment heating of low-lying level, fully carries out UTILIZATION OF VESIDUAL HEAT IN, substantially reduces the heat consumption of device；But number of devices is more, equipment
Electric quantity consumption and cost of equipment maintenance it is higher.
Batchwise polymerization device production procedure is short, and equipment is simple, takes up an area less, and small investment, switching variety protection is flexible, is adapted to small
Batch production.Product exist mass discrepancy between batch and with batch between head and the tail material mass discrepancy, energy consumption and raw materials consumption compared with
Height, technological operation is cumbersome, and operating personnel's work load is high.
The heat consumption and capacity in batchwise polymerization device each stage are unstable, it is difficult to which the steam of high level is carried out
Recycle, plant energy consumption is higher.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, there is provided a kind of semicontinuous nylon66 fiber gathers
Attach together and put, disclosure satisfy that the production of be pilot, and the fully waste heat of recycling system.
To solve above technical problem, a kind of semicontinuous nylon66 fiber polyplant of the present utility model, including concentrating and preheating
Device and primary concentration kettle, the output end of the water-soluble liquid pipe of nylon salt are connected with the charging aperture of the concentrating and preheating device, the concentration
The discharging opening of preheater is connected with the charging aperture of the primary concentration kettle, and the inner chamber of the primary concentration kettle is provided with primary concentration kettle
Heating coil, the periphery of the primary concentration kettle are provided with the pipe heater of primary concentration kettle half, the discharging opening of the primary concentration kettle
It is connected with the entrance of saline solution delivery pump, in addition to two level tubular type concentration kettle, the two level tubular type concentration kettle include vertical response kettle
With the tubular reactor being vertically connected on vertical response kettle circumference, the inner chamber phase of the tubular reactor and vertical response kettle
Logical, the free end of the tubular reactor is provided with tubular reactor charging aperture, and the top of the tubular reactor is anti-provided with tubular type
Device gaseous phase outlet is answered, the bottom of the vertical response kettle is provided with vertical response kettle discharging opening；The outlet of the saline solution delivery pump with
The tubular reactor charging aperture is connected, the vertical response kettle discharging opening by polymeric kettle charging valve respectively with each polymeric kettle
Charging aperture is connected, and the discharging opening of each polymeric kettle is connected with pelleter respectively；The inner chamber of the vertical response kettle is provided with vertical response
Kettle heating coil, the periphery of the vertical response kettle and tubular reactor are provided with the pipe heater of secondary concentration kettle half or secondary concentration
Kettle heating jacket；The tubular reactor gaseous phase outlet is connected by triple valve with the circumference tangential inlet of cyclone, the rotation
Bottom row's mouth of stream device is connected with liquid seal trough, and the top exit of the cyclone is connected with the lower entrances of vacuum tower, described to subtract
The upper steam outlet of tower is pressed to pass through second steam reuse pipe and steam reuse valve and the primary concentration kettle heating coil and institute
The entrance for stating the pipe heater of primary concentration kettle half is connected.
Relative to prior art, the utility model achieves following beneficial effect：Mass concentration is 40~65% nylon66 fiber
After the concentrated preheater preheating concentration of saline solution, concentrated into primary concentration kettle, using primary concentration kettle heating coil
Heated with the pipe heater of primary concentration kettle half, the saline solution mass concentration after primary concentration is up to 65~85%；Then it is defeated by saline solution
Send and be pumped into two level tubular type concentration kettle and continue to concentrate, liquor is added successively by tubular reactor and vertical response kettle
Heat, operating pressure is 1.5~2.0MPa in kettle, and concentration can be controlled 80%~100% in kettle；Wanting for different material can be met
Ask；The vapor (steam) temperature of two level tubular type concentration kettle discharge is higher, is sprayed after cyclone centrifuges and removes oligomer, then through vacuum tower
Leaching further goes the removal of impurity and reduces the pressure of steam, and primary concentration is supplied to by second steam reuse pipe and steam reuse valve
Kettle eliminates the energy expenditure of primary concentration kettle as thermal source, greatly reduces the energy consumption of unit product.One two level tubular type is dense
Contracting kettle can use continuous processing with supporting one or more polymeric kettles, primary concentration kettle and two level tubular type concentration kettle, continuous poly-
Closing operation allows single line production capacity to do greatly, and polymeric kettle uses intermittently operated.Material in two level tubular type concentration kettle is uniform, treats one
When individual polymeric kettle sends instruction and can fed, the thing that corresponding polymeric kettle charging valve adds formula ratio demand to polymeric kettle is opened
Material, after material adds, chain closing polymeric kettle charging valve, polymeric kettle starts to warm up, decompression operation, will until reaching technique
After the viscosity asked, start pelleter and start pelletizing.The additive of differentiated products can add in polymeric kettle, fully achieve
One production line can produce the function of multiple products simultaneously；Greatly improve device flexibility.If it is desired to increase device capbility
Only need to be further added by polymeric kettle after two level tubular type concentration kettle；Six can be configured after most two level tubular type concentration kettles
Individual polymeric kettle；The production capacity of device can thus be substantially increased.The device uses semicontinuous nylon66 fiber polyplant, effectively
Continuous polymerization and batchwise polymerization are combined together；Solve continuous polymerization single varieties, do not apply to the problem of small lot produces；
Process before the high pressure gas stage is made into continuous polymerization unit, sufficiently used the exhaust gas heat of system, significantly
The heat consumption of batchwise polymerization is reduced, while meets the production of be pilot again.
As improvement of the present utility model, the top of the primary concentration kettle is provided with primary concentration kettle gaseous phase outlet, described
Primary concentration kettle gaseous phase outlet is connected by one-level steam reuse pipe with the hot side entrance of the concentrating and preheating device, and the concentration is pre-
The hot side outlet of hot device is connected with condensate pipe.Thermal source is provided for concentrating and preheating device using steam caused by primary concentration kettle, it is right
The saline solution of primary concentration kettle is preheated, can further recovery system waste heat, reduce the energy consumption of unit product.
As further improvement of the utility model, the primary concentration kettle gaseous phase outlet by one-level steam discharge pipe with
The hot side entrance of steam condenser is connected, and the hot side outlet of the steam condenser is connected with condensate pipe.Primary concentration kettle is arranged
The steam gone out is in the case where meeting concentrating and preheating device use, and unnecessary steam is after the condensation of steam condenser, into condensed water
Pipe reclaims, and so realizes whole recovery of afterheat steam.
As further improvement of the utility model, lower entrances and the conduction oil of the vertical response kettle heating coil supply
Oil pipe is connected, and the upper outlet of the vertical response kettle heating coil is connected with conduction oil oil return pipe.Two level tubular type concentration kettle
Heating medium is conduction oil, and conduction oil uses low in and high out.
As further improvement of the utility model, the primary concentration kettle heating coil and the primary concentration kettle semicanal
The entrance of heater is also connected by emergency steam valve with emergency steam pipe.Arranged in start-up, or two level tubular type concentration kettle
When vapour is abnormal, emergency steam valve is opened, provides thermal source from emergency steam pipe to primary concentration kettle, it is ensured that primary concentration kettle is stable
Work.
Brief description of the drawings
Fig. 1 is the flow chart of the semicontinuous nylon66 fiber polyplant of the utility model.
In figure：1. concentrating and preheating device；2. primary concentration kettle；2a. primary concentration kettle heating coils；2b. primary concentrations kettle half
Pipe heater；2c. primary concentration kettle gaseous phase outlets；3. steam condenser；4. saline solution delivery pump；5. two level tubular type concentration kettle；5a.
Tubular reactor charging aperture；5b. tubular reactor gaseous phase outlets；5c. vertical response kettle discharging openings；5d. vertical responses kettle heats
Coil pipe；5b. secondary concentration kettle gaseous phase outlets；6. polymeric kettle；7. pelleter；8. cyclone；9. liquid seal trough；10. vacuum tower；G1.
The water-soluble liquid pipe of nylon salt；G2. conduction oil fuel feed pump；G3. conduction oil oil return pipe；G4. one-level steam reuse pipe；G5. one-level is steamed
Vapour delivery pipe；G6. second steam reuse pipe；G7. condensate pipe；G8. emergency steam pipe；V1. polymeric kettle charging valve；V2. threeway
Valve；V3. steam reuse valve；V4. emergency steam valve.
Embodiment
As shown in figure 1, semicontinuous nylon66 fiber polyplant of the present utility model includes concentrating and preheating device 1, primary concentration kettle
2nd, two level tubular type concentration kettle 5, polymeric kettle 6 and pelleter 7.Two level tubular type concentration kettle 5 includes vertical response kettle and is vertically connected on
Tubular reactor on vertical response kettle circumference, tubular reactor communicate with the inner chamber of vertical response kettle, tubular reactor from
Tubular reactor charging aperture 5a is provided with by end, the top of tubular reactor is provided with tubular reactor gaseous phase outlet 5b, vertical response
The bottom of kettle is provided with vertical response kettle discharging opening 5c.The water-soluble liquid pipe G1 of nylon salt output end and the charging of concentrating and preheating device 1
Mouth is connected, and the discharging opening of concentrating and preheating device 1 is connected with the charging aperture of primary concentration kettle 2, and the inner chamber of primary concentration kettle 2 is provided with one-level
Concentration kettle heating coil 2a, the periphery of primary concentration kettle 2 are provided with the pipe heater 2b of primary concentration kettle half, and primary concentration kettle 2 goes out
Material mouth is connected with the entrance of saline solution delivery pump 4, and the outlet of saline solution delivery pump is connected with tubular reactor charging aperture 5a, vertical response
Kettle discharging opening 5c is connected by charging aperture of the polymeric kettle charging valve respectively with each polymeric kettle 6, the discharging opening of each polymeric kettle 6 respectively with
Pelleter 7 connects；The inner chamber of vertical response kettle is provided with vertical response kettle heating coil 5d, vertical response kettle and tubular reactor
Periphery is provided with the pipe heater of secondary concentration kettle half or secondary concentration kettle heating jacket；Tubular reactor gaseous phase outlet 5b passes through threeway
Valve V2 is connected with the circumference tangential inlet of cyclone 8；Bottom row's mouth of cyclone 8 is connected with liquid seal trough 9, the top of cyclone 8
Outlet is connected with the lower entrances of vacuum tower 10, and the upper steam outlet of vacuum tower 10 passes through second steam reuse pipe G6 and steam
Reuse valve V3 is connected with primary concentration kettle heating coil 2a and the pipe heater 2b of primary concentration kettle half entrance.
The top of primary concentration kettle 2 is provided with primary concentration kettle gaseous phase outlet 2c, and primary concentration kettle gaseous phase outlet 2c passes through one
Level steam reuse pipe G4 is connected with the hot side entrance of concentrating and preheating device 1, hot side outlet and the condensate pipe G7 phases of concentrating and preheating device 1
Even.It is that concentrating and preheating device 1 provides thermal source using steam caused by primary concentration kettle 2, the saline solution of primary concentration kettle 2 is carried out in advance
Heat, can further recovery system waste heat, reduce the energy consumption of unit product.
Primary concentration kettle gaseous phase outlet 2c is connected by one-level steam discharge pipe G5 with the hot side entrance of steam condenser 3,
The hot side outlet of steam condenser 3 is connected with condensate pipe G7.The steam that primary concentration kettle 2 is discharged is meeting concentrating and preheating device 1
In the case of use, unnecessary steam reclaims into condensate pipe G7 after the condensation of steam condenser 3, so realizes waste heat
Whole recovery of steam.
Vertical response kettle heating coil 5d lower entrances are connected with conduction oil fuel feed pump G2, vertical response kettle heating coil
5d upper outlet is connected with conduction oil oil return pipe G3.The heating medium of two level tubular type concentration kettle 5 is conduction oil, and conduction oil is adopted
Use low in and high out.
During work, after the concentrated preheating of preheater 1 concentration of the nylon salt aqueous solution that mass concentration is 40~65%, enter
Primary concentration kettle 2 is concentrated, and is heated using primary concentration kettle heating coil 2a and the pipe heater 2b of primary concentration kettle half,
Saline solution mass concentration after primary concentration is up to 65~85%；Then by saline solution delivery pump 4 be sent into two level tubular type concentration kettle 5 continue into
Row concentration, two level tubular type concentration kettle 5 are heated to liquor successively by tubular reactor and vertical response kettle, work pressure in kettle
Power is 1.5~2.0MPa, and concentration can be controlled 80%~100% in kettle；The requirement of different material can be met.
The vapor (steam) temperature that two level tubular type concentration kettle 5 is discharged is higher, after cyclone 8 centrifuges and removes oligomer, then passes through
Vacuum tower 10 sprays the pressure further gone the removal of impurity and reduce steam, passes through second steam reuse pipe G6 and steam reuse valve V3
It is supplied to primary concentration kettle 2 to be used as thermal source, eliminates the energy expenditure of primary concentration kettle 2, greatly reduces the energy of unit product
Consumption.One two level tubular type concentration kettle 5 can be with supporting one or more polymeric kettles 6, primary concentration kettle 2 and two level tubular type concentration kettle 5
Continuous processing is used, continuous polymerization operation allows single line production capacity to do greatly, and polymeric kettle 6 uses intermittently operated.
Material in two level tubular type concentration kettle 5 is uniform, when a polymeric kettle sends instruction and can fed, opens corresponding
Polymeric kettle charging valve V1 adds the material of formula ratio demand to polymeric kettle 6, after material adds, chain closing polymeric kettle charging
Valve V1, polymeric kettle 6 starts to warm up, decompression operation, after reaching the viscosity of technological requirement, starts pelleter 7 and starts pelletizing.
The additive of differentiated products can add in polymeric kettle 6, and fully achieving a production line can give birth to simultaneously
Produce the function of multiple products；Greatly improve device flexibility.
If it is desired to increase device capbility only needs to be further added by polymeric kettle after two level tubular type concentration kettle 5；Most one
Six polymeric kettles can be configured after individual two level tubular type concentration kettle 5；The production capacity of device can thus be substantially increased.The device is adopted
With semicontinuous nylon66 fiber polyplant, effectively continuous polymerization and batchwise polymerization are combined together；Solve continuous polymerization product
Kind is single, does not apply to the problem of small lot produces；Process before the high pressure gas stage is made into continuous polymerization unit, sufficiently
The exhaust gas heat of system is used, greatly reduces the heat consumption of batchwise polymerization, while meets be pilot again
Production.
Primary concentration kettle heating coil 2a and the pipe heater 2b of primary concentration kettle half entrance also pass through emergency steam valve V4
It is connected with emergency steam pipe G8.In start-up, or when two level tubular type 5 steam discharges of concentration kettle are abnormal, emergency steam valve is opened
V4, thermal source is provided from emergency steam pipe G8 to primary concentration kettle 2, it is ensured that the steady operation of primary concentration kettle 2.
It the foregoing is only the preferable possible embodiments of the utility model, non-therefore limitation patent of the present utility model
Protection domain.In addition to the implementation, the utility model can also have other embodiment.It is all to use equivalent substitution or equivalent change
The technical scheme to be formed is changed, is all fallen within the protection domain of the requires of the utility model.Technology of the utility model without description is special
Sign can be realized by or using prior art, will not be repeated here.
Claims (5)
1. a kind of semicontinuous nylon66 fiber polyplant, including concentrating and preheating device and primary concentration kettle, the water-soluble liquid pipe of nylon salt
Output end is connected with the charging aperture of the concentrating and preheating device, the discharging opening of the concentrating and preheating device and entering for the primary concentration kettle
Material mouth is connected, and the inner chamber of the primary concentration kettle is provided with primary concentration kettle heating coil, and the periphery of the primary concentration kettle is provided with
The pipe heater of primary concentration kettle half, the discharging opening of the primary concentration kettle are connected with the entrance of saline solution delivery pump, it is characterised in that：
Also include two level tubular type concentration kettle, the two level tubular type concentration kettle includes vertical response kettle and is vertically connected on vertical response kettle circle
Tubular reactor on week, the tubular reactor communicate with the inner chamber of vertical response kettle, the free end of the tubular reactor
Provided with tubular reactor charging aperture, the top of the tubular reactor is provided with tubular reactor gaseous phase outlet, the vertical response
The bottom of kettle is provided with vertical response kettle discharging opening；The outlet of the saline solution delivery pump is connected with the tubular reactor charging aperture,
The vertical response kettle discharging opening is connected by charging aperture of the polymeric kettle charging valve respectively with each polymeric kettle, the discharging of each polymeric kettle
Mouth is connected with pelleter respectively；The inner chamber of the vertical response kettle is provided with vertical response kettle heating coil, the vertical response kettle
The pipe heater of secondary concentration kettle half or secondary concentration kettle heating jacket are provided with the periphery of tubular reactor；The tubular reactor
Gaseous phase outlet is connected by triple valve with the circumference tangential inlet of cyclone, the bottom row's mouth and liquid seal trough phase of the cyclone
Even, the top exit of the cyclone is connected with the lower entrances of vacuum tower, and the upper steam outlet of the vacuum tower passes through two
Level steam reuse pipe and steam reuse valve and the primary concentration kettle heating coil and the pipe heater of primary concentration kettle half
Entrance is connected.
2. semicontinuous nylon66 fiber polyplant according to claim 1, it is characterised in that：The top of the primary concentration kettle
Provided with primary concentration kettle gaseous phase outlet, the primary concentration kettle gaseous phase outlet passes through one-level steam reuse pipe and the concentrating and preheating
The hot side entrance of device is connected, and the hot side outlet of the concentrating and preheating device is connected with condensate pipe.
3. semicontinuous nylon66 fiber polyplant according to claim 2, it is characterised in that：The primary concentration kettle gas phase goes out
Mouth is connected by one-level steam discharge pipe with the hot side entrance of steam condenser, the hot side outlet of the steam condenser and condensation
Water pipe is connected.
4. the semicontinuous nylon66 fiber polyplant according to claim 1 or 2 or 3, it is characterised in that：The vertical response kettle
The lower entrances of heating coil are connected with conduction oil fuel feed pump, the upper outlet and conduction oil of the vertical response kettle heating coil
Oil return pipe is connected.
5. the semicontinuous nylon66 fiber polyplant according to claim 1 or 2 or 3, it is characterised in that：The primary concentration kettle
The entrance of heating coil and the pipe heater of primary concentration kettle half is also connected by emergency steam valve with emergency steam pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009808.1U CN207108892U (en) | 2017-08-14 | 2017-08-14 | A kind of semicontinuous nylon66 fiber polyplant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009808.1U CN207108892U (en) | 2017-08-14 | 2017-08-14 | A kind of semicontinuous nylon66 fiber polyplant |
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| Publication Number | Publication Date |
|---|---|
| CN207108892U true CN207108892U (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721009808.1U Active CN207108892U (en) | 2017-08-14 | 2017-08-14 | A kind of semicontinuous nylon66 fiber polyplant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363142A (en) * | 2020-04-27 | 2020-07-03 | 扬州惠通化工科技股份有限公司 | High-capacity nylon polymerization system |
-
2017
- 2017-08-14 CN CN201721009808.1U patent/CN207108892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363142A (en) * | 2020-04-27 | 2020-07-03 | 扬州惠通化工科技股份有限公司 | High-capacity nylon polymerization system |
| CN111363142B (en) * | 2020-04-27 | 2021-03-19 | 扬州惠通科技股份有限公司 | High-capacity nylon polymerization system |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 301, Wangjiang Road, economic and Technological Development Zone, Yangzhou City, Jiangsu Province Patentee after: Yangzhou Huitong Technology Co.,Ltd. Address before: No. 301, Wangjiang Road, economic and Technological Development Zone, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU HUITONG CHEMICAL TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |