CN203437013U - Device for recovering organic solvents during manufacturing of polyimide films - Google Patents
Device for recovering organic solvents during manufacturing of polyimide films Download PDFInfo
- Publication number
- CN203437013U CN203437013U CN201320449748.0U CN201320449748U CN203437013U CN 203437013 U CN203437013 U CN 203437013U CN 201320449748 U CN201320449748 U CN 201320449748U CN 203437013 U CN203437013 U CN 203437013U
- Authority
- CN
- China
- Prior art keywords
- gas
- heater
- cooling
- cooler
- regeneration
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a device for recovering organic solvents during manufacturing of polyimide films. The device comprises a rotating wheel and a motor, wherein the rotating wheel comprises a treatment area, a regeneration area and a cooling area; the motor drives the rotating wheel to rotate; a treatment area circulation pipeline is sequentially connected with a cooler, the treatment area and a treatment fan; a regeneration area circulation pipeline is connected with a heater, the regeneration area, an air cooler and a regeneration fan through valve control sequentially and then communicated with a waste gas inlet; gases at a gas inlet of the heater are organic waste gases exhausted in imidization; a cooling area circulation pipeline is sequentially connected with a cooling fan, a gas cooler and the cooling area, and a loop is formed; and a negative pressure end and a positive pressure end of the cooling fan are connected with a gas outlet of the cooler and the gas inlet of the heater respectively through valves. According to the device, through the mechanism design, except that the fans need to consume energy, the regeneration heat of the rotating wheel completely comes from the waste gases exhausted in the imidization process, so that the device has the advantages of low energy consumption and high adsorption efficiency.
Description
Technical field
The utility model relates to the retracting device of organic solvent in Kapton manufacture process.
Background technology
Kapton is the best organic film of current heat resistance, can keep in a short time its physical property at 555 ℃, and long-term serviceability temperature is up to more than 300 ℃.Moreover, the electric property of Kapton, radiation resistance and fire resistance are also very outstanding.Along with the development of the development of new and high technology, particularly aerospace industry, electric industry and information industry, the use amount of Kapton will be increasing.
The most general production method of Kapton be utilize by diamines with and acid anhydride polymerization in aprotic solvent obtains polyamic acid (PAA), then utilize aluminium foil proofing method or casting method or polyamic acid (PPA) is manufactured to film to salivation pulling method and hot-imide obtains polyimides (PI) film.
In Kapton production process, need to use a large amount of organic solvents, one ton of imines film of every production, all has the organic solvent of four tons of left and right to discharge, and if do not processed recovery, certainly will cause severe contamination to environment, and cause huge economic loss.
Kapton production process can produce the waste gas containing organic solvent of two kinds of different solvents content and different temperatures, a kind of waste gas produces from polyamic acid dry run, another waste gas produces from polyamic acid cyclodehydration process, in imidizate process, produces.
In Kapton production process, majority of organic solvent is discharged to atmosphere in polyamic acid dry run, and organic solvent in a small amount produces in imidizate process; The temperature of the organic exhaust gas that polyamic acid dry run produces is conventionally 130 ℃ of left and right, and the organic exhaust gas temperature that imidizate process produces is conventionally more than 200 ℃.
At present domestic condensation method or the condensation-spray process of generally using reclaims the organic solvent producing in Kapton production process, but these recovery methods all exist certain defect.
The method that condensation method reclaims organic solvent is exactly that the waste gas containing organic solvent is cooling through subcooler, makes part organic solvent condensate in waste gas, and the method rate of recovery only has 30-60% conventionally, and the rate of recovery changes greatly with atmospheric temperature.
Condensation-spray process reclaims organic solvent in waste gas and at waste gas, after supercooling, sprays water in waste gas exactly again, utilizes water absorption of residual to stay the organic solvent in waste gas.While processing Kapton production process waste gas according to scientific and technical literature report condensation-spray process, organic solvent content in waste gas can reach the relative condensation method comparison of 120mg/m3., condensation-spray process rate of recovery increases substantially, but, raising along with environmental requirement, organic exhaust gas after condensation-spray process is processed cannot meet national requirements for environmental protection, and the concentration of the organic solvent reclaiming while being more importantly condensation-spray process recovery organic solvent is low.
Summary of the invention
The utility model will solve above-mentioned technical problem, the retracting device of organic solvent in a kind of novel polyimide film manufacture process is provided, organic solvent content in waste gas can be below 50mg/m3, and the operation energy resource consumption of equipment is simultaneously low, and the moisture content of the organic solvent of recovery is low.
Above-mentioned purpose of the present utility model is to be achieved by the following technical programs:
The retracting device of organic solvent in Kapton manufacture process, comprise there is treatment region, the runner of renewing zone and cooling zone is, drive the motor of runner rotation, on treatment region circulation pipeline, sequentially connects cooler, treatment region, processing blower fan; When the waste gas containing organic solvent flows through from runner treatment region, the organic solvent in waste gas is adsorbed by the sorbing material on runner, and gas becomes pure air directly discharged to atmosphere.
On renewing zone circulation pipeline, by valve, control after sequentially connecting heater, renewing zone, aerial cooler, regeneration blower fan and connect exhaust gas entrance; Heater air inlet gas is the organic exhaust gas of discharging from imidizate, after this part waste gas mixes with the waste gas of coming through cooling blower biography, becoming temperature is the rotary wheel regeneration gas of 180 ℃ of left and right, open degree by control valve regulates the temperature of mixing rear gas, regeneration blower fan, its function is to make regeneration gas flow through the regeneration zone of runner.Heater, its function is the temperature of fine adjustment regeneration gas, normally electrical heating.The regeneration gas of discharging from regeneration zone is after aerial cooler is cooling, and the organic solvent meeting condensation in gas, thus, realizes solvent and reclaim from waste gas, and condensed gas enters cooler from exhaust gas entrance, with waste gas, carries out together exhaust-gas treatment.
On cooling zone circulation pipeline, sequentially connect cooling blower, gas cooler, cooling zone, and form a loop; Cooling blower negative pressure end is connected cooler gas outlet and heater air inlet by valve respectively with positive pressure side, cooling blower, its function is to make to flow through runner cooling zone through the cooled gas circulation of gas cooler to make runner cooling, runner is relevant with the air circulation of cooling blower at the cooling effect of renewing zone, cooling blower air circulation is larger, and runner cooling effect is better.In this flow process, the air circulation of cooling blower is on the not impact of runner concentration rate, and the cooling air quantity of cooling blower can be infinitely great in theory, and thus, in this flow process, runner adsorption efficiency is high.
Reason due to operating procedure, in the waste gas of imidizate process discharge, may have the material being difficult to separated from solvent, now, heater air inlet front end connects air heat exchanger, the waste gas that air heat exchanger discharges by imidizate process heats, and heater air inlet gas is air.
The utility model is by above-mentioned mechanism design, and except blower fan need to consume the energy, rotary wheel regeneration heat all derives from the waste gas of imidizate process discharge, possesses energy resource consumption low, the advantage that adsorption efficiency is high.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
The specific embodiment
The utility model is the retracting device of organic solvent in Kapton manufacture process, comprise having treatment region 13, the runner 2 of 12He cooling zone, renewing zone 11, drive the motor 18 of runner 2 rotations and be arranged on the processing blower fan 1 on treatment region circulation pipeline, treatment region 13 inlet ends are provided with cooler 3; Runner 2 is molecular sieve concentration runner, and function is to make waste gas containing organic solvent be separated into clean air and containing the gas of high levels of organic solvents.It is formed by the material manufacture that can adsorb organic solvent.Runner 2 is disc-shaped structure, and it is divided into three regions by the plate that cuts of special manufacture, i.e. treatment region in Fig. 1 13,12, cooling zone, renewing zone 11.Runner rotation under electric rotating machine 18 drives, the sorbing material on runner alternately rests on treatment region, rotary wheel regeneration district and runner cooling zone all the time.Runner direction of rotation is: from runner treatment region, forward rotary wheel regeneration district ，Zai Cong rotary wheel regeneration district to and forward runner treatment region to, and so move in circles.
On renewing zone circulation pipeline, sequentially connect heater 6, renewing zone 12, aerial cooler 5, regeneration blower fan 4, and control by valve; On cooling zone circulation pipeline, sequentially connect cooling blower 14, gas cooler 15, cooling zone 11, and form a loop; Cooling blower 14 negative pressure ends are connected cooler 3 gas outlets and heater 6 air inlets by valve respectively with positive pressure side.
When retracting device works, the waste gas that contains organic solvent enters retracting device from a point.Fraction containing the waste gas of organic solvent after subcooler 3 is cooling, through valve 17 be cooled that blower fan 14 siphons away and from valve 16 with from C point, enter the organic exhaust gas from imidizate discharge of being controlled by valve 7 and mix as regeneration gas; Most of waste gas containing organic solvent after subcooler 3 is cooling, after runner treatment region, become pure air from b point discharged to atmosphere.
Due to operating procedure, in the waste gas of imidizate process discharge, may there is the material being difficult to separated from solvent, now, heater air inlet front end connects air heat exchanger, and the waste gas that air heat exchanger discharges by imidizate process heats.
Heater 6 air inlet front ends connect air heat exchanger 20, the waste gas that air heat exchanger 20 discharges by imidizate process heats, and heater 6 air inlet gases are air, E inlet of cold air, F point is the exhaust gas inlet of imidizate process discharge, the floss hole of waste gas after D point is cooled.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (2)
1. the retracting device of organic solvent in Kapton manufacture process, comprise the runner (2) of there is treatment region (13), renewing zone (12) and cooling zone (11), drive the motor (18) of runner (2) rotation and be arranged on the processing blower fan (1) on treatment region circulation pipeline, it is characterized in that: treatment region (13) inlet end is provided with cooler (3); On renewing zone circulation pipeline, by valve, controlled and sequentially connected heater (6), renewing zone (12), aerial cooler (5), the rear exhaust gas entrance of connecting of regeneration blower fan (4), heater (6) air inlet gas is the organic exhaust gas of discharging from imidizate; On cooling zone circulation pipeline, sequentially connect cooling blower (14), gas cooler (15), cooling zone (11), and form a loop; Cooling blower (14) negative pressure end is connected cooler (3) gas outlet and heater (6) air inlet by valve respectively with positive pressure side.
2. the retracting device of organic solvent according to claim 1, it is characterized in that: heater (6) air inlet front end connects air heat exchanger (20), the waste gas that air heat exchanger (20) discharges by imidizate process heats, and heater (6) air inlet gas is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449748.0U CN203437013U (en) | 2013-07-26 | 2013-07-26 | Device for recovering organic solvents during manufacturing of polyimide films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449748.0U CN203437013U (en) | 2013-07-26 | 2013-07-26 | Device for recovering organic solvents during manufacturing of polyimide films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203437013U true CN203437013U (en) | 2014-02-19 |
Family
ID=50088091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449748.0U Expired - Lifetime CN203437013U (en) | 2013-07-26 | 2013-07-26 | Device for recovering organic solvents during manufacturing of polyimide films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203437013U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208980A (en) * | 2014-08-22 | 2014-12-17 | 中国华能集团清洁能源技术研究院有限公司 | Turning wheel air separation purification device and turning wheel air separation purification method |
| CN104827617A (en) * | 2015-05-30 | 2015-08-12 | 无锡顺铉新材料有限公司 | Comprehensive recycling system for production of polyimide films |
| CN109529539A (en) * | 2019-01-04 | 2019-03-29 | 无锡康纳利环保科技有限公司 | It is a kind of to carry out intensive exhaust treatment system and technique using zeolite runner |
-
2013
- 2013-07-26 CN CN201320449748.0U patent/CN203437013U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104208980A (en) * | 2014-08-22 | 2014-12-17 | 中国华能集团清洁能源技术研究院有限公司 | Turning wheel air separation purification device and turning wheel air separation purification method |
| CN104827617A (en) * | 2015-05-30 | 2015-08-12 | 无锡顺铉新材料有限公司 | Comprehensive recycling system for production of polyimide films |
| CN109529539A (en) * | 2019-01-04 | 2019-03-29 | 无锡康纳利环保科技有限公司 | It is a kind of to carry out intensive exhaust treatment system and technique using zeolite runner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203852996U (en) | Device for recycling organic solvent during preparation of polyimide film | |
| CN106196346A (en) | A kind of energy-efficient low dew point rotary dehumidifier | |
| CN201823451U (en) | Blast heating internal circulation compressed air purifying device | |
| CN203437013U (en) | Device for recovering organic solvents during manufacturing of polyimide films | |
| CN107051100A (en) | Drying device | |
| CN201503090U (en) | Heat recovering energy-saving dehumidifying system for air hot pipe | |
| CN101543683B (en) | Method for reclaiming NMP in working procedure of coating lithium ion cell | |
| CN202356000U (en) | Vacuum heating compressed air purifier with zero air consumption | |
| CN101912714A (en) | Large-wind-volume low-concentration organic exhaust gas two-step recycling device and method | |
| CN103353118A (en) | Low-concentration organic waste gas treatment device | |
| CN201637009U (en) | Low-energy consumption combined dehumidifier | |
| CN101940867B (en) | Zero gas consumption low dew-point waste heat regenerative absorbent type dryer | |
| CN202581587U (en) | Low-humidity high-temperature regenerating energy-saving dehumidification system | |
| CN107327422B (en) | A kind of high-efficiency air compressor heat recovery system | |
| CN103727606A (en) | Rotary wheel dehumidification system with vortex tube for performing cooling and regenerating and air processing method for rotary wheel dehumidification system | |
| CN103272454A (en) | Organic exhaust gas treatment method and apparatus | |
| CN203458948U (en) | Recycling device of organic solvent in polyimide film manufacturing process | |
| CN114791134B (en) | Multidirectional energy-saving double-rotating-wheel dehumidifier capable of recovering sensible heat and dehumidification method | |
| CN203431887U (en) | Low-concentration organic waste gas processing device | |
| CN104084357B (en) | Heat pump and molecular sieve adsorption runner combined cycle organic solvent recovery device | |
| CN108895713A (en) | A kind of lithium battery pole piece coating machine drying system using heat pump recuperation of heat | |
| CN204159068U (en) | The device of organic solvent is reclaimed from color coating aluminium process gas | |
| CN204555115U (en) | A kind of Novel hot recovery type rotary dehumidifier | |
| CN107842948A (en) | Energy efficiency type low temperature single-wheel dehumidifying unit | |
| CN204154125U (en) | A kind of waste heat of flue gas of heating furnace producing nichrome end socket utilizes energy saver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |