CN202905198U - Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator - Google Patents
Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator Download PDFInfo
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- CN202905198U CN202905198U CN 201220528814 CN201220528814U CN202905198U CN 202905198 U CN202905198 U CN 202905198U CN 201220528814 CN201220528814 CN 201220528814 CN 201220528814 U CN201220528814 U CN 201220528814U CN 202905198 U CN202905198 U CN 202905198U
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Abstract
The utility model discloses an irradiation box of irradiation pyrolysis of tetrafluoroethylene by an electron accelerator. The irradiation box mainly comprises a box body which is provided with a feed inlet, an outlet and an irradiation window. The irradiation window is arranged at an upper surface of the box body. The feed inlet and the outlet are respectively arranged at two ends of the box body respectively. The box body is internally provided with a transmission device which is positioned between the feed inlet and the outlet and is under the irradiation window. The transmission device is provided with a heating element so as to control irradiation temperature and improve working efficiency. According to the irradiation box of irradiation pyrolysis of tetrafluoroethylene by the electron accelerator provided by the utility model, when in use, the transmission device transmits PTFE material loaded from the feed inlet to pass through the irradiation window continuously, thus the PTFE material is irradiated by rays and is cracked, the irradiation is carried out continuously so as to satisfy the needs of irradiation of the tetrafluoroethylene under different atmosphere conditions, and at the same time, corrosive gases HF and F2 generated in cracking can be taken away timely and is subjected to an absorb treatment through a post treatment device.
Description
Technical field
The utility model relates to a kind of irradiation box, especially a kind of irradiation box of electron accelerator irradiation cracking teflon.
Background technology
The fluoro containing polymers such as teflon and vinylidene polymeric material is owing to its excellent physical and chemical performance is widely applied, and particularly the physicochemical property of teflon is especially good.
The irradiation to crack technology is to produce the high efficiency method of the micro mist such as teflon, and the polytetrafluoroethylpowder powder of producing by the irradiation to crack technology all has a wide range of applications at modified engineered plastic, medium-to-high grade printing ink, coating and the aspect such as lubricated.
The radiation dose rate in cobalt source is lower, because the irradiation to crack of PTFE needs higher absorbed dose, so exposure time is longer, affects production efficiency.Electron accelerator then can provide very high irradiation dose at short notice owing to have higher dose rate, irradiation processing field at polymeric material is widely applied, and comprises processing of producing crosslinked polymer material, heat-shrinkage material and superfine powder of polytetrafluoroethylene body etc.
Irradiation device for electronic accelerator comprises electron accelerator and bundle lower device two parts.Accelerator is the part for the preparation of the emission high-power electron beam, and the bundle lower device then is the part of directly producing, and wherein is mounted with the material that needs irradiation processing.Manufacture and design a kind of stable quantity-produced bundle lower device that is suitable for certain material irradiation processing needs such as the irradiation box of irradiation to crack teflon etc., can effectively improve irradiation efficiency and product that the dosage that is absorbed is stable, aspect irradiation processing, have important application.
Summary of the invention
The purpose of this utility model is to provide a kind of irradiation that can carry out continuously for the deficiency that solves above-mentioned technology, but and makes the irradiation box of the electron accelerator irradiation cracking teflon that the irradiation to crack high-level efficiency of teflon carries out.
The irradiation box of the electron accelerator irradiation cracking teflon that the utility model is designed, mainly comprise casing, described casing is provided with charging aperture, discharging opening and irradiation window, described irradiation window is arranged on the upper surface of casing, described charging aperture and discharging opening are separately positioned on tank ends, be provided with conveyer in the described casing, described conveyer is between charging aperture and the discharging opening and be positioned at below the irradiation window, during work, conveyer by box house will place the PTFE raw material in the pallet continuously to pass through irradiation window, make it to be subject to radiation exposure and cracking occurs, irradiation carries out continuously.
As preferably: described conveyer is provided with heating element, in the process of irradiation, can be controlled in natural temperature or is heated under the condition of predetermined temperature and carry out.
As preferably: described conveyer comprises feeding belt, gear train and transmission shaft, and described feeding belt one end is positioned at the charging aperture below, and the other end is positioned at the discharging opening top; Described transmission shaft is supported on the feeding belt below, and described gear train is connected with transmission shaft driven, and equidistantly arrange at described heating element and transmission shaft interval.
As preferably: described casing is sealed construction, and described casing is provided with air intake opening and exhausr port, can pass into air or nitrogen etc., to satisfy the needs of teflon irradiation under the different atmosphere condition, corrosive gas HF and F that simultaneously cracking produces
2Deng can in time being taken away and absorbing processing by after-treatment device.
As preferably: described casing integral body is " protruding " font, and described air intake opening has two, lays respectively at the two ends of casing, and described exhausr port is positioned at the tip position of casing projection, and is simple in structure like this and the corrosive gas that irradiation produces can be discharged smoothly.
As preferably: described casing also is provided with temperature element, and described temperature element is thermopair, can test temperature in the irradiation box by thermopair.
As preferably: described casing length range is 1500 millimeters-3000 millimeters, width range is 800 millimeters-1500 millimeters, epidermal thickness is 5 millimeters-10 millimeters, described irradiation window is the titanium foil window, be rectangle, window is parallel with feeding belt with casing, and titanium foil window length range is 600 millimeters-1000 millimeters, width range is 5 millimeters-200 millimeters, 5 microns-500 microns of the thickness of titanium foil window.
As preferably: described feeding belt length is 1500 millimeters-3000 millimeters, but less than the length on casing chassis.
The irradiation box of the electron accelerator irradiation cracking teflon that the utility model is designed, conveyer by box house will continuously pass through irradiation window from the PTFE raw material that charging aperture is sent into, make it to be subject to radiation exposure and cracking occurs, irradiation carries out continuously, and be provided with heating element at conveyer, can be controlled in natural temperature or be heated under the condition of predetermined temperature and carry out irradiation, increase work efficiency, casing has preferably, and sealing also can pass into gas with various, to satisfy the needs of teflon irradiation under the different atmosphere condition, corrosive gas HF and F that simultaneously cracking produces
2Deng can in time being taken away and absorbing processing by after-treatment device.
Description of drawings
Fig. 1 is the front view of embodiment 1;
Fig. 2 is the left view of embodiment 1;
Fig. 3 is the vertical view of embodiment 1.
Among the figure: charging aperture 1, discharging opening 2, air intake opening 3, exhausr port 4, casing 5, heating element 6, irradiation window 7, conveyer 8, gear train 9, transmission shaft 10, feeding belt 11, temperature element 12, support 13.
Embodiment
The utility model will be further described by reference to the accompanying drawings below by embodiment.
Embodiment 1:
As shown in Figure 1, the irradiation box of the described electron accelerator irradiation cracking of present embodiment teflon, comprise casing 5, described casing 5 is provided with charging aperture 1, discharging opening 2 and irradiation window 7, described irradiation window 7 is arranged on the upper surface of casing 5, described charging aperture 1 is separately positioned on casing 5 two ends with discharging opening 2, be provided with conveyer 8 in the described casing 5, described conveyer 8 is between charging aperture 1 and the discharging opening 2 and be positioned at below the irradiation window 7, described conveyer 8 is provided with heating element 6, described conveyer 8 comprises feeding belt 11, gear train 9 and transmission shaft 10, described feeding belt 11 1 ends are positioned at charging aperture 1 below, and the other end is positioned at discharging opening 2 tops; Described transmission shaft 10 is supported on feeding belt 11 belows, described gear train 9 is in transmission connection with transmission shaft 10, described heating element 6 is equidistantly arranged with transmission shaft 10 intervals, described casing 5 is sealed construction, described casing 5 is provided with two air intake openings 3 and an exhausr port 4, described casing 5 integral body are " protruding " font, described two air intake openings 3 lay respectively at the two ends of casing 5, described exhausr port 4 is positioned at the tip position of casing 5 projections, described casing 5 also is provided with temperature element 12, and described temperature element 12 is thermopair, and described casing 5 length ranges are 2200 millimeters, width range is 1200 millimeters, the thickness of casing 5 is 7 millimeters, and described irradiation window 7 is the titanium foil window, is rectangle, window is parallel with feeding belt 11 with casing 5, titanium foil window length range is 800 millimeters, and width range is 100 millimeters, 200 microns of thickness, described feeding belt 11 length are 2000 millimeters, are slightly less than the length on casing 5 chassis.
Described casing 5 have one up and down before and after four surfaces and about two sides, the material of casing 5 is the corrosion-resistant stainless steel material, the thickness of material is 7 millimeters; Casing 5 length ranges are 2200 millimeters, and width range is 1200 millimeters.Be provided be used to the titanium foil window that sealing is arranged that passes into electron beam in the middle of casing 5 upper surfaces, window is parallel with feeding belt 11 with casing 5, and titanium foil window length range is 800 millimeters, and width range is 100 millimeters, and the titanium foil window material is titanium foil (200 microns of thickness), and casing 5 is positioned on the support 13.
The two ends of irradiation box are respectively equipped with charging aperture 1 and discharging opening 2, and charging aperture 1 installs behind the material and discharging opening 2 all can seal in the process of collection material.Feeding belt 11 is positioned at casing 5 inside, and the material fortune that charging aperture 1 is come in is gone to pass to discharging opening 2 behind the irradiation and collected, and can ensure preferably sealing in the process that transmits material irradiation.Feeding belt 11 length are 2000 millimeters, are slightly less than the length of casing 5, and width is 800 millimeters.Two ends at casing 5 are respectively equipped with air intake opening 3 in addition, upper surface is provided with exhausr port 4, casing 5 inside no longer are provided with snorkel, three direct and casing 5 internal switching of gas port, gas is entered from the two ends of casing 5 bottoms during irradiation, from upper surface out, the corrosive gas that generates in the irradiation process can directly be pulled away from exhausr port 4 and carry out aftertreatment.
The gear train 9 of casing 5 is located at casing 5 front left ends, and transmission shaft 10 bears the weight of feeding belt 11 and drives feeding belt 11 below casing 5 interior feeding belts 11, and the right side of transmission shaft 10 links to each other with gear train 9.Thereby by the speed that adjusting transmission mechanism 9 can be regulated the speed control input and output material of transmission shaft 10, obtain the irradiation dose of specific needs.Described heating element 6 is positioned at same plane with transmission shaft 10, and equidistantly arrange at the interval, and its size is substantially approaching with transmission shaft 10.Temperature element 12 wears from the outside, and be positioned at feeding belt 11 near middle irradiation windows longitudinally directly over, parallel with feeding belt 11.
With this irradiation box the material irradiation such as teflon can be carried out continuously, under natural temperature, condition of nitrogen gas during irradiation, to need the material of irradiation to install at feeder hopper, and irradiation depth on demand regulates and paves bar, with the charging hopper sealing, discharging opening 2 also seals after installing receiving trap afterwards; The gas outlet is connected the corrosive gas treating fluid, and two air intake openings 3 connect identical compressed nitrogen, regulate air inlet speed; Regulate the dose rate of accelerator electron beam, in addition according to the transfer rate of the good feeding belt 11 of Timing of material needs irradiation; The unlocking electronic accelerator is opened gear train 9 afterwards, and feeding belt 11 continuously by 7 mouthfuls of irradiation windows, makes it the PTFE material be subject to radiation exposure and cracking occurs, and the material that irradiation is good sends from discharging opening 2, is collected on the receiving trap.
Need to be under air or other gas conditions during irradiation when the teflon material, change compressed nitrogen into corresponding gas and get final product.
Because heating helps the cracking of teflon, when the teflon material need to carry out irradiation under heating condition, open first heater switch, open accelerator and gear train 9 carries out irradiation after heating element 6 is heated to assigned temperature with casing 5 again, heating is carried out simultaneously in the irradiation process.When temperature is too high when surpassing assigned temperature, temperature element 12 indication heating stop.When temperature is lower than design temperature, automatic recovery heating again then.In addition, need under the higher temperature during irradiation, can carry out thermal pretreatment to material first, the irradiation of feeding again afterwards when the PTFE material.
Embodiment 2:
The irradiation box of the described electron accelerator irradiation cracking of present embodiment teflon, roughly with to execute example 1 consistent, it does not exist together is that casing 5 length are got 1500 millimeters, width range is 800 millimeters, the thickness of casing 5 is 5 millimeters, described titanium foil window length range is 600 millimeters, and width range is 5 millimeters, and titanium foil thickness is 5 microns.
Embodiment 3:
The irradiation box of the described electron accelerator irradiation cracking of present embodiment teflon, roughly with to execute example 1 consistent, it does not exist together is that casing 5 length are got 3000 millimeters, width range is 1500 millimeters, the thickness of casing 5 is 10 millimeters, described titanium foil window length range is 1000 millimeters, and width range is 200 millimeters, and titanium foil thickness is 500 microns.
Claims (10)
1. the irradiation box of an electron accelerator irradiation cracking teflon, comprise casing (5), described casing (5) is provided with charging aperture (1), discharging opening (2) and irradiation window (7), described irradiation window (7) is arranged on the upper surface of casing (5), described charging aperture (1) is separately positioned on casing (5) two ends with discharging opening (2), it is characterized in that: in casing (5), be provided with conveyer (8), described conveyer (8) is positioned between charging aperture (1) and the discharging opening (2), and is positioned at irradiation window (7) below.
2. the irradiation box of electron accelerator irradiation cracking teflon according to claim 1 is characterized in that being provided with heating element (6) at conveyer (8).
3. the irradiation box of electron accelerator irradiation cracking teflon according to claim 2, it is characterized in that: described conveyer (8) comprises feeding belt (11), gear train (9) and transmission shaft (10), described feeding belt (11) one ends are positioned at charging aperture (1) below, and the other end is positioned at discharging opening (2) top; Described transmission shaft (10) is supported on feeding belt (11) below, and described gear train (9) is in transmission connection with transmission shaft (10), and described heating element (6) is equidistantly arranged with transmission shaft (10) interval.
4. according to claim 1 and 2 or the irradiation box of 3 described electron accelerator irradiation cracking teflon, it is characterized in that: described casing (5) is sealed construction, is provided with two air intake openings (3) and an exhausr port (4) at casing (5).
5. the irradiation box of electron accelerator irradiation cracking teflon according to claim 4, it is characterized in that: described casing (5) integral body is " protruding " font, described two air intake openings (3) are positioned at casing (5) two ends, and described exhausr port (4) is positioned at the tip position of casing (5) projection.
6. the irradiation box of electron accelerator irradiation cracking teflon according to claim 5 is characterized in that: also be provided with temperature element (12) in the described casing (5).
7. the irradiation box of electron accelerator irradiation cracking teflon according to claim 6, it is characterized in that: described temperature element (12) is thermopair, be positioned at feeding belt (11) near middle irradiation window longitudinally directly over, parallel with feeding belt (11).
8. the irradiation box of electron accelerator irradiation cracking teflon according to claim 7, it is characterized in that: described irradiation window (7) is the titanium foil window.
9. the irradiation box of electron accelerator irradiation cracking teflon according to claim 8, it is characterized in that: described casing (5) length range is 1500 millimeters-3000 millimeters, width range is 800 millimeters-1500 millimeters, and the thickness of casing (5) is 5 millimeters-10 millimeters.
10. the irradiation box of electron accelerator irradiation cracking teflon according to claim 9, it is characterized in that: described titanium foil window is rectangle, titanium foil window length range is 600 millimeters-1000 millimeters, and width range is 5 millimeters-200 millimeters, and thickness is 5 microns-500 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528814 CN202905198U (en) | 2012-09-30 | 2012-09-30 | Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528814 CN202905198U (en) | 2012-09-30 | 2012-09-30 | Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator |
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| Publication Number | Publication Date |
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| CN202905198U true CN202905198U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220528814 Expired - Fee Related CN202905198U (en) | 2012-09-30 | 2012-09-30 | Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator |
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| CN (1) | CN202905198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193056A (en) * | 2014-09-22 | 2014-12-10 | 中国科学技术大学 | Method for efficiently degrading polyfluorinated compound PFOA (perfluoro caprylic acid) in wastewater |
| CN106750418A (en) * | 2016-12-16 | 2017-05-31 | 四川大学 | The method that irradiation to crack prepares the PTFE micro mists of good thermal stability |
| CN108572678A (en) * | 2018-07-18 | 2018-09-25 | 河南灿坤量子科技有限公司 | A kind of photon multipotency amount irradiation processing equipment |
-
2012
- 2012-09-30 CN CN 201220528814 patent/CN202905198U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104193056A (en) * | 2014-09-22 | 2014-12-10 | 中国科学技术大学 | Method for efficiently degrading polyfluorinated compound PFOA (perfluoro caprylic acid) in wastewater |
| CN106750418A (en) * | 2016-12-16 | 2017-05-31 | 四川大学 | The method that irradiation to crack prepares the PTFE micro mists of good thermal stability |
| CN108572678A (en) * | 2018-07-18 | 2018-09-25 | 河南灿坤量子科技有限公司 | A kind of photon multipotency amount irradiation processing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Irradiation box of irradiation pyrolysis of tetrafluoroethylene by electron accelerator Effective date of registration: 20180412 Granted publication date: 20130424 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Jiashan county subbranch Pledgor: Jiashan Shen Jia Technology Co., Ltd. Registration number: 2018330000081 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200424 Granted publication date: 20130424 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Jiashan county subbranch Pledgor: JIASHAN SHENJIA TECHNOLOGY Co.,Ltd. Registration number: 2018330000081 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20200930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |