CN201427943Y - Polyphenylene sulfide drying device - Google Patents
Polyphenylene sulfide drying device Download PDFInfo
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- CN201427943Y CN201427943Y CN2009201670202U CN200920167020U CN201427943Y CN 201427943 Y CN201427943 Y CN 201427943Y CN 2009201670202 U CN2009201670202 U CN 2009201670202U CN 200920167020 U CN200920167020 U CN 200920167020U CN 201427943 Y CN201427943 Y CN 201427943Y
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- crystallization
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- nitrogen gas
- preheater
- drying
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Abstract
The utility model relates to a drying processing device before the deep processing of polyphenylene sulfide drying slices, in particular to a continuous polyphenylene sulfide drying device for producing polyphenylene sulfide fiber. The device comprises a crystallization fan and a dryer, wherein the lower portion of the dryer is provided with a polyphenylene sulfide slice discharging port and a nitrogen gas inlet, the other end of the dryer is connected with a crystallization preheater, a feeding rotary valve is arranged on the crystallization preheater, and a totally-enclosed nitrogen gas circulating system is formed of the crystallization preheater, the heater, the crystallization fan and a cyclone separator, wherein the cyclone separator is connected with the inlet of the crystallizationfan, the outlet of the crystallization fan is provided with the preheater, furthermore, the crystallization fan is further connected with a nitrogen gas purifying and processing unit through a valve,and the nitrogen gas purifying and processing unit is connected with a nitrogen gas inlet on the lower portion of the dryer through a low dew-point nitrogen gas dehumidifying system and a control device. The device has the advantages of a compact crystallization preheating system, a drying system with stable temperature, the totally-enclosed nitrogen gas circulating system, an original desulfuration reactor, an original deoxidization reactor, and the low dew-point nitrogen gas dehumidifying system and a complete DCS electrical control system.
Description
Technical field
The utility model relates to the drying process device before a kind of polyphenylene sulfide slice deep processing, especially a kind of continous way equipment for drying polyphenylene thioether of producing polyphenylene sulfide fibre.
Background technology
Polyphenylene sulfide is a kind of novel material, have high temperature resistant, corrosion-resistant, creep resistance, high strength, characteristics such as heat-resisting, can be under the high temperature more than the 200C steady in a long-term the use.Because these outstanding features of polyphenylene sulfide, both can be used for the special occasions of high-tech area, also can make fiber and be used as high-quality filter material under the hot environment, such as, can be used for high-temperature flue gas purification.Make filter material and need polyphenylene sulfide be processed into fibrously with spinning equipment, and the prerequisite of making fiber is exactly at first to want p-poly-phenyl thioether raw material to carry out to a certain degree pre-crystallization, and then carries out drying, makes its water content reach quite low degree.Polyphenylene sulfide fibre is as a kind of novel material, because its excellent physicochemical characteristic, since going on market, obtained using more and more widely.Though China starts to walk in this field evening, tempo is very fast.Along with the successful operation of commercial scale continuous production polyphenylene sulfide fibre equipment, will effectively promote the development of environmental protection cause.At present, have only the intermittent type vacuum dryer of short run at home at polyphenylene sulfide, production efficiency is low, and dried water content fluctuation is big, can't guarantee that the stable of spinning process carries out.Market demand is developed a kind of specially at the continuous drying equipment of the industrially scalable of polyphenylene sulfide slice,
Summary of the invention
The purpose of this utility model is that the feature development at polyphenylene sulfide goes out a kind of continous way equipment for drying polyphenylene thioether, and it has overcome the prior art above shortcomings.
The technical scheme that its technical problem that solves the utility model adopts is: it includes crystallization blower fan and moisture eliminator, the bottom of described moisture eliminator is provided with polyphenylene sulfide slice discharge outlet and nitrogen inlet, the other end of moisture eliminator is connected with the crystallization preheater, and the crystallization preheater is provided with the charging rotary valve; Described crystallization preheater and well heater, crystallization blower fan and cyclonic separator constitute totally-enclosed nitrogen circulating system, wherein cyclonic separator is connected with the inlet of crystallization blower fan, the outlet of crystallization blower fan is provided with well heater, the crystallization blower fan also is connected with the nitrogen purge processing unit by a valve in addition, described nitrogen purge processing unit is connected with the nitrogen inlet of well heater with the bottom of moisture eliminator by low dew point nitrogen dehumidification system, and described nitrogen purge processing unit is connected with control device with low dew point nitrogen dehumidification system.
Described nitrogen purge processing unit includes desulfurizer, removes oxygen reactor, water cooler and recirculation blower, wherein the import of desulfurizer is connected with the valve of crystallization blower fan outlet, the outlet of desulfurizer with remove oxygen reactor and be connected, remove the outlet and the water cooler of oxygen reactor, water cooler is connected with recirculation blower, and recirculation blower is connected with low dew point nitrogen dehumidification system.
The input terminus of the controller of described control device is connected with technology survey sensor and equipment operation feedback assembly respectively, and the output terminal of controller is connected with equipment performer and upper computer.
Described control device is made of PLC Controlling System or DCS Controlling System.
Because the utility model has adopted said structure, compared with prior art it mainly has the following advantages:
Compact type crystallization and pre-heating system, independently pre-crystallizer adopts the fluidized-bed form, has improved heat exchanger effectiveness, and pre-crystallization time is shortened to about 1/5th of former intermittent type vacuum crystallization;
The fill-type drying machine, time of drying and temperature all are convenient to accurate control, and the dehumidification system of temperature-stable has been guaranteed the stable of final product quality;
Adopt nitrogen to carry out crystallizing and drying, totally-enclosed circulating nitrogen gas system, the desulphurization reactor of original creation and remove oxygen reactor has been avoided the oxidized of raw material effectively;
Three grades of desulphurization reactors of original creation are removed the various organic and inorganic sulphide in the nitrogen effectively;
Unique oxygen reactor that removes adopts low-temp reaction catalyst, has reduced the energy consumption that heating needs when keeping high-conversion rate, and the extremely low oxygen level of outlet nitrogen has guaranteed the not oxidated influence of quality of polyphenylene sulfide;
Dehumidification system adopts the molecular sieve adsorption principle to guarantee the requirement of nitrogen dew point;
Low dew point nitrogen dehumidification system and complete DCS electrical control system.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is a control device electrical equipment block diagram of the present utility model.
1. crystallization preheaters among the figure; 2. crystallization blower fan; 3. cyclonic separator; 4. charging rotary valve; 5. moisture eliminator; 6. well heater; 7. well heater; 8. desulphurization system; 9. remove oxygen reactor; 10. water cooler; 11. recirculation blower; 12. low dew point nitrogen dehumidification system; 13. technology survey sensor; 14. equipment operation feedback assembly; 15. controller; 16. equipment performer; 17. upper computer.
Embodiment
The technical scheme that its technical problem that solves the utility model adopts is: adopt successive type crystallization preheater that the rapid crystallization of polyphenylene sulfide slice is preheating to technological temperature and sends into moisture eliminator.In moisture eliminator, by the low dew point of high temperature and also not the pure nitrogen of sulfur compound drying is carried out in section, send into the nitrogen purge system after dried useless nitrogen adopts collection processing system implementing to collect and carry out purifying and purify so that carry out recycle.In the nitrogen purification purification system, nitrogen at first will carry out desulfurization, carry out deoxygenation then, then dehumidify, filter to become nitrogen treatment the purified nitrogen pneumatic transmission to go back to system to utilize again through high precision more at last, the data processing of system and the realization of logical relation are all finished by PLC, and upper computer can monitor the operation of all system parameters and control all devices.
Concrete structure and technological process are as follows: in Fig. 1, moisture higher polyphenylene sulfide slice enters crystallization preheater 1 as raw material quantitatively by charging rotary valve 4, raw material temperature in crystallization preheater 1 rises rapidly, its most of moisture can evaporate, and reaches the needed crystalline state of next step operation.Material particles is boiling state under the effect of crystallization blower fan 2, avoided bonding caking each other, enters moisture eliminator 5 then.Nitrogen in the crystallization preheater 1 is promoted by a crystallization blower fan 2, is provided with well heater 7 in the blower fan outlet, and its effect is to keep crystallization wind to be in the constant technological temperature all the time.Raw material through preheating and pre-dehydration is the nature stacking states for 5 li at moisture eliminator.The pure nitrogen of exsiccant heat that is blown into from moisture eliminator 5 bottoms carries out drying to material.This nitrogen is from the nitrogen purge processing unit, and clean and exsiccant nitrogen is heated to technological temperature through well heater 6 and enters moisture eliminator 5, blows over the material bed of accumulation from bottom to top.Mix in the air draft of moisture eliminator 5 behind the nitrogen drying material,, the unnecessary wet nitrogen that contains is got back to the nitrogen purge processing unit by a valve discharge in the outlet of crystallization blower fan 2 through getting back to crystallization blower fan 2 inlets after cyclonic separator 3 dedustings with crystallization preheater 1.The nitrogen purge processing unit includes desulphurization system 8, removes oxygen reactor 9, water cooler 10 and recirculation blower 11, the nitrogen of discharging successively through desulphurization system 8, remove oxygen reactor 9, water cooler 10 enters recirculation blower 11, deliver to well heater 6 through low dew point nitrogen dehumidification system 12, reenter moisture eliminator 5 then.The nitrogen purge processing unit is connected with control device respectively with low dew point nitrogen dehumidification system 12, and described control device is made of PLC Controlling System or DCS Controlling System.
In Fig. 2, technology survey sensor 13 and equipment operation feedback assembly 14 pass the signal in the PLC15, PLC15 carries out signal to equipment performer 16 through calculating to send, simultaneously equipment running status is shown on the upper computer 17, upper computer 17 can be intervened the operation of PLC15 by man-machine interface.
Claims (4)
1. equipment for drying polyphenylene thioether, include crystallization blower fan (2) and moisture eliminator (5), it is characterized in that: the bottom of described moisture eliminator (5) is provided with polyphenylene sulfide slice discharge outlet and nitrogen inlet, the other end of moisture eliminator (5) is connected with crystallization preheater (1), and crystallization preheater (1) is provided with charging rotary valve (4); Described crystallization preheater (1) and well heater (7), crystallization blower fan (2) and cyclonic separator (3) constitute totally-enclosed nitrogen circulating system, wherein cyclonic separator (3) is connected with the inlet of crystallization blower fan (2), the outlet of crystallization blower fan (2) is provided with well heater (7), crystallization blower fan (2) also is connected with the nitrogen purge processing unit by a valve in addition, described nitrogen purge processing unit is connected with the nitrogen inlet of well heater (6) with the bottom of moisture eliminator (5) by low dew point nitrogen dehumidification system (12), and described nitrogen purge processing unit is connected with control device with low dew point nitrogen dehumidification system (12).
2. equipment for drying polyphenylene thioether according to claim 1, it is characterized in that: described nitrogen purge processing unit includes desulfurizer (8), removes oxygen reactor (9), water cooler (10) and recirculation blower (11), wherein the import of desulfurizer (8) is connected with the valve of crystallization blower fan (2) outlet, the outlet of desulfurizer (8) with remove oxygen reactor (9) and be connected, the outlet that removes oxygen reactor (9) is connected with water cooler (10), water cooler (10) is connected with recirculation blower (11), and recirculation blower (11) is connected with low dew point nitrogen dehumidification system (12).
3. equipment for drying polyphenylene thioether according to claim 1, it is characterized in that: the input terminus of the controller of described control device (15) is connected with technology survey sensor (13) and equipment operation feedback assembly (14) respectively, and the output terminal of controller (15) is connected with equipment performer (16) and upper computer (17).
4. according to claim 1 or 3 described equipment for drying polyphenylene thioether, it is characterized in that: described control device is made of PLC Controlling System or DCS Controlling System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201670202U CN201427943Y (en) | 2009-07-24 | 2009-07-24 | Polyphenylene sulfide drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201670202U CN201427943Y (en) | 2009-07-24 | 2009-07-24 | Polyphenylene sulfide drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201427943Y true CN201427943Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201670202U Expired - Lifetime CN201427943Y (en) | 2009-07-24 | 2009-07-24 | Polyphenylene sulfide drying device |
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| Country | Link |
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| CN (1) | CN201427943Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242659A (en) * | 2013-05-31 | 2013-08-14 | 常熟市金泉化纤织造有限责任公司 | Method for increasing viscosity of polyphenylene sulfide resin before spinning |
| CN105043017A (en) * | 2015-06-11 | 2015-11-11 | 张家港市新盛新材料有限公司 | Polyphenylene sulfide dry packing device |
| CN106196984A (en) * | 2016-07-20 | 2016-12-07 | 山东永泰集团有限公司 | A kind of drying system based on terylene processing |
-
2009
- 2009-07-24 CN CN2009201670202U patent/CN201427943Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103242659A (en) * | 2013-05-31 | 2013-08-14 | 常熟市金泉化纤织造有限责任公司 | Method for increasing viscosity of polyphenylene sulfide resin before spinning |
| CN105043017A (en) * | 2015-06-11 | 2015-11-11 | 张家港市新盛新材料有限公司 | Polyphenylene sulfide dry packing device |
| CN106196984A (en) * | 2016-07-20 | 2016-12-07 | 山东永泰集团有限公司 | A kind of drying system based on terylene processing |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100324 Effective date of abandoning: 20090724 |
|
| RGAV | Abandon patent right to avoid regrant |