CN111899910A - Electron beam irradiation method and irradiation system - Google Patents
Electron beam irradiation method and irradiation system Download PDFInfo
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- CN111899910A CN111899910A CN202010682810.5A CN202010682810A CN111899910A CN 111899910 A CN111899910 A CN 111899910A CN 202010682810 A CN202010682810 A CN 202010682810A CN 111899910 A CN111899910 A CN 111899910A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/08—Holders for targets or for other objects to be irradiated
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The application relates to an electron beam irradiation method, which belongs to the technical field of irradiation processing, and comprises a central processing unit, a bracket used for carrying articles to be irradiated, a conveying system used for conveying the bracket, and an irradiation chamber used for providing irradiation, and further comprises a circulating conveying subsystem, wherein the circulating conveying subsystem is positioned in the irradiation chamber, two ends of the circulating conveying subsystem are respectively communicated with the conveying system, and the control method comprises the following steps: acquiring radiation information corresponding to an article to be irradiated loaded on a bracket, wherein the radiation information comprises radiation times; the central processing unit controls the conveying system to convey the bracket into the irradiation chamber, and controls the times of the bracket entering the circulating conveying subsystem according to the radiation information, so that the bracket reloaded with the object to be irradiated radiates on the conveying system according to the radiation times; the operation of the conveying system and/or the circulating conveying subsystem is controlled, so that the irradiated articles enter the part of the conveying system in the irradiation chamber for multiple times to be irradiated, the irradiation times of each irradiated article are automatically executed, and the irradiation efficiency is improved.
Description
Technical Field
The present disclosure relates to the field of irradiation processing technologies, and in particular, to an electron beam irradiation method and an electron beam irradiation system.
Background
The radiation processing refers to transferring the energy of electrons generated by an electron accelerator (0.2 MeV-10 MeV) or gamma rays generated by a radioactive isotope (Cs-137 or Co-60) to an irradiated substance, and ionizing radiation acts on the irradiated substance to generate ionization and excitation so as to release orbital electrons to form free radicals. By controlling the radiation conditions, the physical property and chemical composition of the irradiated material are changed and can form a new material required by people, or organisms (microorganisms and the like) are subjected to unrecoverable loss and damage, so that the required target of people is achieved. This new processing technique is called radiation processing technique. For example, the polymer material can be grafted, polymerized, split or cross-linked. Secondly, the growth of organisms is inhibited or stimulated, and pests, ova, germs and the like are effectively killed. One way of irradiation is to irradiate an electron accelerator, so that the electron accelerator emits beam current according to a certain dose to bombard the polymer material, thereby improving the physical properties of the polymer plastic.
Working principle of the electron accelerator: the industrial electricity is converted into adjustable high-voltage high-frequency (AC 0-10KV, 120 KHZ), and after being boosted to (AC 0-90KV, 120 KHZ) by a high-voltage transformer, the industrial electricity is boosted to the required voltage (DC-0-10 MeV) by a voltage doubling circuit, and electrons are activated to extract electron beams under high voltage. Then the product to be irradiated is placed on a trolley below the electron beam through the processes of focusing, guiding, scanning the electron beam and the like, and the trolley can move slowly to enable the product to be irradiated by the electron beam. Meanwhile, the intensity of the electron beam is in direct proportion to the moving speed of the trolley. Thereby irradiating the product to achieve a predetermined effect. The unit of intensity of the product irradiation is the dose, for example: irradiation of the food product is checked for its bacterial content and the polymeric material is checked for its degree of cross-linking, a process called irradiation.
In the prior art, the radiation frequency of the product is mainly controlled manually, high labor cost is needed, the work efficiency is low, when the number of the articles to be irradiated is large, errors occur easily, the radiation frequency errors can cause the articles to be irradiated to be scrapped, and great waste is caused.
Disclosure of Invention
In view of the defects in the prior art, one of the objectives of the present application is to provide an electron beam irradiation method having the advantage of improving irradiation efficiency.
One of the above objects of the present application is achieved by the following technical solutions:
an electron beam irradiation method comprises a central processing unit, a bracket used for carrying articles to be irradiated, a conveying system used for conveying the bracket, an irradiation chamber used for providing irradiation, and a circulating conveying subsystem, wherein the circulating conveying subsystem is positioned in the irradiation chamber, two ends of the circulating conveying subsystem are respectively communicated with the conveying system, and the control method comprises the following steps:
acquiring radiation information corresponding to an article to be irradiated loaded on a bracket, wherein the radiation information comprises radiation times;
and the central processor controls the conveying system to convey the bracket into the irradiation chamber, and controls the times of the bracket entering the circulating conveying subsystem according to the radiation information, so that the bracket transferring the object to be irradiated is irradiated on the conveying system according to the radiation times.
By adopting the technical scheme, the radiation times of irradiated articles such as electric wires and cables, heat-shrinkable tubes, food preservation, various temperature-resistant pipes and the like are obtained, and the central processing unit controls the operation of the conveying system and/or the circulating conveying subsystem according to the radiation times of the irradiated articles, so that the irradiated articles enter the conveying system for multiple times to be radiated on the part in the irradiation chamber, the radiation times of the irradiated articles can be automatically executed, and the irradiation efficiency is improved; meanwhile, the radiation of the irradiated article can be accurately monitored and controlled, and the stability and the accuracy of the quality of the irradiated article can be greatly improved.
The present application may be further configured in a preferred example to: and establishing a matching relation table of the mass thickness of the irradiated object and the energy of the electron beam, acquiring the mass thickness information of the irradiated object, and controlling the energy of the electron beam irradiation processing device by the central processing unit according to the mass thickness information.
By adopting the technical scheme, the mass thickness of the irradiated object is optimally matched with the output energy of the accelerator based on the mass thickness information of the irradiated object, so that the utilization efficiency of the electron beam is improved.
The present application may be further configured in a preferred example to: the energy of the electron beam irradiation processing device has a minimum value Emin and a maximum value Emax;
if the energy of the electron beam required by the irradiated object is greater than Emax, the central processing unit gives prompt information that the mass thickness of the irradiated object is too large and the thickness of the irradiated object is required to be reduced to an acceptable range;
if the energy of the electron beam required by the irradiated object is less than Emin, the central processor gives a prompt message that the mass thickness of the irradiated object is too small and the thickness of the irradiated object is required to be increased to a proper range.
By adopting the technical scheme, when the real-time adjustment of the corresponding energy adjustment and the scanning width of the electron accelerator exceeds the limit values of the energy adjustment and the scanning width of the electron accelerator according to the measurement results of the related mass thickness and the article length, a worker can be prompted to adjust the stacking mode of the irradiated object to achieve the optimal mass thickness and scanning width, so that the utilization efficiency of the electron beam is maximized and the irradiation processing effect is guaranteed.
The present application may be further configured in a preferred example to: the method for acquiring the radiation information corresponding to the to-be-irradiated article loaded on the bracket comprises the following steps:
initializing the product information of each article to be irradiated to obtain an identification code on the bracket, and specifically comprising the following steps:
acquiring product information of each article to be irradiated;
recording the product information of each article to be irradiated into a data center;
and correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated.
By adopting the technical scheme, the product information of each article to be irradiated is recorded into the data center, and the identification code of each irradiated article is generated, so that the system can conveniently acquire the radiation information corresponding to the irradiated article, and the acquisition difficulty of the radiation information is reduced.
The present application may be further configured in a preferred example to: the step of correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated comprises the following steps:
extracting identification code information needing to be put in an identification code according to the product information of each article to be irradiated, wherein the identification code information comprises: the identification number is used for uniquely identifying the article to be irradiated;
and converting the extracted identification code information to generate an identification code so as to arrange the generated identification code on a corresponding bracket.
The second purpose of the present application is achieved by the following technical scheme:
an electron beam irradiation system comprises an information acquisition module, a transmission system, a circulating conveying subsystem, an irradiation chamber and a central processing unit, wherein the circulating conveying subsystem is positioned in the irradiation chamber, and two ends of the circulating conveying subsystem are respectively communicated with the transmission system;
the information acquisition module is used for acquiring radiation information on the bracket, wherein the radiation information comprises radiation times;
the conveying system is positioned outside the irradiation chamber and is used for conveying the bracket loaded with the articles to be irradiated to different branch conveying subsystems in the irradiation chamber;
the central processor is used for controlling the operation of the conveying system and/or the circulating conveying subsystem and controlling the times of the brackets entering the circulating conveying subsystem, so that the brackets transferring the articles to be irradiated are irradiated on the conveying system according to the irradiation times.
By adopting the technical scheme, the information acquisition module acquires the radiation frequency of irradiated articles such as electric wires and cables, heat-shrinkable tubes, food preservation, various temperature-resistant pipes and the like, and the central processing unit controls the operation of the conveying system and/or the circulating conveying subsystem according to the radiation frequency of each irradiated article, so that each irradiated article can enter the conveying system for multiple times to radiate on the part in the irradiation chamber, the radiation frequency of each irradiated article can be automatically executed, and the irradiation efficiency is improved.
The present application may be further configured in a preferred example to: the device also comprises a mass thickness acquisition module which is used for acquiring the mass thickness information of the irradiated object on the bracket, sending the mass thickness information to the central processing unit and controlling the energy of the electron beam irradiation processing device through the central processing unit.
By adopting the technical scheme, the mass thickness acquisition module acquires the mass thickness information of the irradiated object, so that the mass thickness of the irradiated object is optimally matched with the output energy of the accelerator, and the utilization efficiency of the electron beam is improved.
The present application may be further configured in a preferred example to: and the information acquisition module is used for acquiring the identification codes on the brackets, sending the identification codes to the central processing unit, and controlling the operation of the conveying system and/or the circulating conveying subsystem through the central processing unit.
By adopting the technical scheme, the identification code is scanned to acquire the radiation information corresponding to the irradiated article, so that the acquisition difficulty of the radiation information is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps that the radiation times of radiation articles such as electric wires and cables, heat-shrinkable tubes, food preservation, various temperature-resistant pipes and the like are obtained, and a central processing unit controls a conveying system and/or a circulating conveying subsystem to operate according to the radiation times of the radiation articles, so that the radiation articles enter the conveying system for multiple times to radiate on the part in an irradiation chamber, the radiation times of the radiation articles can be automatically executed, and the radiation efficiency is improved; meanwhile, the radiation of the irradiated article can be accurately monitored and controlled, so that the stability and the accuracy of the quality of the irradiated article can be greatly improved;
2. when the energy adjustment and the real-time adjustment of the scanning width of the electron accelerator exceed the limit values of the energy adjustment and the scanning width of the electron accelerator according to the measurement results of the mass thickness and the article length, workers can be prompted to adjust the stacking mode of the irradiated object to achieve the optimal mass thickness and scanning width, so that the utilization efficiency of the electron beam is maximized, and the irradiation processing effect is guaranteed.
Drawings
FIG. 1 is a flow chart of a control method of the present application;
fig. 2 is a control system block diagram of the present application.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
An electron beam irradiation method comprises a central processing unit, a bracket used for carrying articles to be irradiated, a conveying system used for conveying the bracket, an irradiation chamber used for providing irradiation, and a circulating conveying subsystem, wherein the circulating conveying subsystem is positioned in the irradiation chamber, two ends of the circulating conveying subsystem are respectively communicated with the conveying system, and the control method comprises the following steps: acquiring radiation information corresponding to an article to be irradiated loaded on a bracket, wherein the radiation information comprises radiation times; the central processing unit controls the conveying system to convey the brackets into the irradiation chamber, and controls the times of the brackets entering the circulating conveying subsystem according to the radiation information, so that the brackets reloading the articles to be irradiated are irradiated on the conveying system according to the radiation times.
In this application, handing-over department is provided with the guide plate between transfer system and the circulation transport subsystem, the one end of guide plate is rotated and is connected on transfer system's mounting bracket, and be provided with drive guide plate pivoted driving piece on transfer system's the mounting bracket, make the guide plate towards the circulation transport subsystem through the driving piece, thereby the messenger treat that irradiation article get into the circulation transport subsystem through transfer system on, will treat that irradiation article carry transfer system is located the indoor part of irradiation through the circulation transport subsystem. Wherein, the driving part can adopt a motor, a cylinder and the like.
The method comprises the steps that the radiation times of radiation articles such as electric wires and cables, heat-shrinkable tubes, food preservation, various temperature-resistant pipes and the like are obtained, and a central processing unit controls a conveying system and/or a circulating conveying subsystem to operate according to the radiation times of the radiation articles, so that the radiation articles enter the conveying system for multiple times to radiate on the part in an irradiation chamber, the radiation times of the radiation articles can be automatically executed, and the radiation efficiency is improved; meanwhile, the radiation of the irradiated article can be accurately monitored and controlled, and the stability and the accuracy of the quality of the irradiated article can be greatly improved.
Establishing a matching relation table of the mass thickness of the irradiated object and the energy of the electron beam, acquiring the mass thickness information of the irradiated object, and controlling the energy of the electron beam irradiation processing device by the central processing unit according to the mass thickness information; based on the information of the mass thickness of the irradiated object, the mass thickness of the irradiated object is optimally matched with the output energy of the accelerator, so that the utilization efficiency of the electron beam is improved.
The energy of the electron beam irradiation processing device has a minimum value Emin and a maximum value Emax; if the energy of the electron beam required by the irradiated object is greater than Emax, the central processing unit gives prompt information that the mass thickness of the irradiated object is too large and the thickness of the irradiated object is required to be reduced to an acceptable range; if the energy of the electron beam required by the irradiated object is less than Emin, the central processor gives prompt information that the mass thickness of the irradiated object is too small and the thickness of the irradiated object is required to be increased to a proper range. When the energy adjustment and the real-time adjustment of the scanning width of the electron accelerator exceed the limit values of the energy adjustment and the scanning width of the electron accelerator according to the measurement results of the mass thickness and the article length, workers can be prompted to adjust the stacking mode of the irradiated object to achieve the optimal mass thickness and scanning width, so that the utilization efficiency of the electron beam is maximized, and the irradiation processing effect is guaranteed.
The method for acquiring the radiation information corresponding to the to-be-irradiated article loaded on the bracket comprises the following steps: initializing the product information of each article to be irradiated to obtain an identification code on the bracket, and specifically comprising the following steps: acquiring product information of each article to be irradiated; recording the product information of each article to be irradiated into a data center; and correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated. The product information of each article to be irradiated is recorded into the data center, and the identification code of each irradiated article is generated, so that the system can conveniently acquire the radiation information corresponding to the irradiated article, and the acquisition difficulty of the radiation information is reduced.
The step of correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated comprises the following steps: extracting identification code information needing to be put into the identification code according to the product information of each article to be irradiated, wherein the identification code information comprises: the identification number is used for uniquely identifying the article to be irradiated; and converting the extracted identification code information to generate an identification code so as to arrange the generated identification code on the corresponding bracket. The product information of the object to be irradiated comprises a product batch number, a customer code, a product code, a frame number range of a corresponding bracket, required irradiation times and the like.
In the application, the identification code is formed by converting the extracted identification code through the generator, and the method specifically comprises the following steps: and the identification code information is coded, complemented, masked and the like according to a certain coding rule to be converted into binary data, and the converted binary data is drawn according to a certain rule to obtain an identification code image. The identification code can adopt bar codes, two-dimensional codes and the like, and can also adopt other codes; bar codes and two-dimensional codes have their own advantages and disadvantages. The two-dimensional code has the advantages of more storable information and wider range; a bar code can only contain alphabetic and numeric information and only stores information in one direction (typically the horizontal direction) and no information in the other direction (typically the vertical direction). The two-dimensional code can store information in a two-dimensional space in the horizontal and vertical directions, and the capacity of stored data information is larger. The two-dimensional code surpasses the limits of letters and numbers, and can record more complex data such as pictures, network links and the like. The bar code has the advantages of simple reading equipment, low cost, high speed, suitability for reading under complex conditions, furthest reduction of reading difficulty and suitability for reading in various severe extreme environments.
In the application, the acquired radiation information corresponding to the article to be irradiated can be compared with the radiation information acquired through the identification code, so that a comparison result is obtained. If the comparison is successful (for example, the radiation times corresponding to the object to be irradiated are the same as the radiation times obtained by the identification code), the central processing unit is provided with the radiation information control bracket to perform radiation in the irradiation chamber. If the comparison fails (for example, the number of radiation times corresponding to the article to be irradiated is different from the number of radiation times obtained by the identification code), the central processing unit obtains correct identification code information again according to the data stored in the data center to generate the corresponding identification code.
An electron beam irradiation system, refer to fig. 2, comprising an information acquisition module, a transmission system, a circulating transport subsystem, an irradiation chamber and a central processing unit, wherein the circulating transport subsystem is located in the irradiation chamber, and two ends of the circulating transport subsystem are respectively communicated with the transmission system; the information acquisition module is used for acquiring radiation information on the bracket, wherein the radiation information comprises radiation times; the conveying system is positioned outside the irradiation chamber and is used for conveying the bracket loaded with the articles to be irradiated to different branch conveying subsystems in the irradiation chamber; and the central processor is used for controlling the operation of the conveying system and/or the circulating conveying subsystem and controlling the times of the brackets entering the circulating conveying subsystem, so that the brackets reloading the articles to be irradiated are irradiated on the conveying system according to the irradiation times.
The mass thickness acquisition module is used for acquiring mass thickness information of an irradiated object on the bracket, sending the mass thickness information to the central processing unit and controlling the energy of an electron beam of the electron beam irradiation processing device through the central processing unit; the mass thickness obtaining module obtains the mass thickness information of the irradiated object, so that the mass thickness of the irradiated object is optimally matched with the output energy of the accelerator, and the utilization efficiency of the electron beam is improved. The information acquisition module is used for acquiring the identification codes on the brackets, sending the identification codes to the central processing unit and controlling the operation of the conveying system and/or the circulating conveying subsystem through the central processing unit; the identification code is scanned to obtain the radiation information corresponding to the irradiated article, and the difficulty in obtaining the radiation information is reduced.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An electron beam irradiation method comprises a central processing unit, a bracket used for carrying articles to be irradiated, a conveying system used for conveying the bracket, and an irradiation chamber used for providing irradiation, and is characterized by further comprising a circulating conveying subsystem, wherein the circulating conveying subsystem is positioned in the irradiation chamber, two ends of the circulating conveying subsystem are respectively communicated with the conveying system, and the control method comprises the following steps:
acquiring radiation information corresponding to an article to be irradiated loaded on a bracket, wherein the radiation information comprises radiation times;
and the central processor controls the conveying system to convey the bracket into the irradiation chamber, and controls the times of the bracket entering the circulating conveying subsystem according to the radiation information, so that the bracket transferring the object to be irradiated is irradiated on the conveying system according to the radiation times.
2. The electron beam irradiation method according to claim 1, wherein a matching relationship table of the mass thickness of the irradiated object and the energy of the electron beam is established to obtain mass thickness information of the irradiated object, and the central processing unit controls the energy of the electron beam irradiation processing device according to the mass thickness information.
3. The electron beam irradiation method according to claim 2, wherein the energy of the electron beam irradiation processing device has a minimum value Emin and a maximum value Emax;
if the energy of the electron beam required by the irradiated object is greater than Emax, the central processing unit gives prompt information that the mass thickness of the irradiated object is too large and the thickness of the irradiated object is required to be reduced to an acceptable range;
if the energy of the electron beam required by the irradiated object is less than Emin, the central processor gives a prompt message that the mass thickness of the irradiated object is too small and the thickness of the irradiated object is required to be increased to a proper range.
4. The electron beam irradiation method according to claim 1, wherein the obtaining of the irradiation information corresponding to the article to be irradiated loaded on the carriage comprises:
initializing the product information of each article to be irradiated to obtain an identification code on the bracket, and specifically comprising the following steps:
acquiring product information of each article to be irradiated;
recording the product information of each article to be irradiated into a data center;
and correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated.
5. The electron beam irradiation method according to claim 1, wherein the step of correspondingly generating an identification code for identifying the article to be irradiated according to the product information of each article to be irradiated comprises:
extracting identification code information needing to be put in an identification code according to the product information of each article to be irradiated, wherein the identification code information comprises: the identification number is used for uniquely identifying the article to be irradiated;
and converting the extracted identification code information to generate an identification code so as to arrange the generated identification code on a corresponding bracket.
6. An electron beam irradiation system is characterized by comprising an information acquisition module, a transmission system, a circulating conveying subsystem, an irradiation chamber and a central processing unit, wherein the circulating conveying subsystem is positioned in the irradiation chamber, and two ends of the circulating conveying subsystem are respectively communicated with the transmission system;
the information acquisition module is used for acquiring radiation information on the bracket, wherein the radiation information comprises radiation times;
the conveying system is positioned outside the irradiation chamber and is used for conveying the bracket loaded with the articles to be irradiated to different branch conveying subsystems in the irradiation chamber;
the central processor is used for controlling the operation of the conveying system and/or the circulating conveying subsystem and controlling the times of the brackets entering the circulating conveying subsystem, so that the brackets transferring the articles to be irradiated are irradiated on the conveying system according to the irradiation times.
7. The electron beam irradiation system according to claim 1, further comprising a mass thickness obtaining module for obtaining mass thickness information of the irradiated object on the bracket and sending the information to the central processing unit, wherein the central processing unit controls the energy of the electron beam irradiation processing device.
8. The system of claim 1, wherein the information acquisition module is configured to collect the identification code on the carrier and send the identification code to the central processing unit, and the central processing unit controls the operation of the transport system and/or the circular transport subsystem.
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| CN112704176A (en) * | 2021-01-07 | 2021-04-27 | 清华大学 | Method for killing novel coronavirus by electron beam irradiation |
| CN113413473A (en) * | 2021-05-12 | 2021-09-21 | 中国原子能科学研究院 | Sterilization system |
| CN114796540A (en) * | 2022-03-22 | 2022-07-29 | 中广核辐照技术有限公司 | Irradiation treatment method for articles with non-uniform material specifications |
| CN114796540B (en) * | 2022-03-22 | 2023-08-04 | 中广核辐照技术有限公司 | Irradiation treatment method for non-uniform material specification articles |
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