CN212750391U

CN212750391U - Electron beam irradiation treatment device for inner and outer surfaces of barrel-shaped container

Info

Publication number: CN212750391U
Application number: CN202021173975.1U
Authority: CN
Inventors: 贾朝伟; 严鹏程; 曾利; 李琦
Original assignee: Sichuan Zhiyan Technology Co ltd
Current assignee: Sichuan Zhiyan Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-03-19
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to an irradiation treatment technical field discloses an outer surface electron beam irradiation processing apparatus in barrel-shaped container, be less than barrel-shaped container opening size's long pipeline that transports through elongated external diameter, carry barrel-shaped container inside with the column electron beam that low energy electron beam module produced, then the rotating magnetic field that produces by outside electro-magnet deflects the column electron beam about 90 degrees again, and use long pipeline that transports to rotate fast as the axle, to the inside surface all around of barrel-shaped container and shine the processing, barrel-shaped container or electron beam module reciprocate, accomplish the irradiation treatment on whole barrel-shaped container inside surface. The outer surface of the barrel-shaped container is irradiated by electron beam modules placed on both sides of the outside of the barrel-shaped container. The invention uses low-energy electron beams to realize the electron beam irradiation treatment of the inner and outer surfaces of the large-size barrel-shaped container, and has low cost, small volume and simple ray protection.

Description

Electron beam irradiation treatment device for inner and outer surfaces of barrel-shaped container

Technical Field

The utility model relates to an irradiation treatment field especially relates to an outer surface electron beam irradiation processing apparatus in barrel-shaped container.

Background

At present, the electron beam irradiation treatment technology is more and more widely applied, and in some fields, the electron beam irradiation treatment needs to be carried out on the inner surface and the outer surface of a barrel-shaped container, such as: the fields of disinsection, sterilization, disinfection, irradiation modification, coating curing and the like of the inner surface and the outer surface. Taking the existing large barreled beverage processing production line as an example, the empty barrel to be canned is generally required to be sterilized to ensure that the quality of the later product meets the requirement, and the commonly adopted sterilization means such as chemical sterilization, ultraviolet sterilization and the like are adopted; however, chemical residues are easily left on the surface and inside of the barrel by adopting a chemical means for sterilization, so that the quality of products at the later stage is influenced; the adoption of ultraviolet sterilization can only kill about 85 percent of bacteria on the surface, so the sterilization effect is common; in the field of small-size beverage bottle packaging sterilization, low-energy electron beam sterilization is applied in the beverage production industry at present, CN 101416255B & lt & gt an electron beam emitter & gt is suitable for small-size PET bottles, an electron beam module extends into the PET bottles for irradiation sterilization, but the electron beam module is not suitable for large-size barrel-shaped containers, the direct irradiation of the electron beam has limited dispersion degree in the air, the dosage of the side wall is very low, and the satisfactory treatment effect is difficult to obtain for the containers with the diameter of more than 100 mm. In addition, a magnetic shielding structure is not considered, a deflection magnetic field cannot be applied to carry out large-angle deflection and rotation, otherwise, electron beams are deflected inside a long conveying pipeline and cannot be smoothly led out through a leading-out window. And the external penetrating irradiation mode is adopted, as shown in the patent (Jiangsu Zhi & research and technology Co., Ltd., CN201821988554.7, device for sterilizing bottles by adopting single electron beam) common PET bottles with the wall thickness of 0.1-0.3 mm, the electron beam energy of about 500keV can completely penetrate, and the electron beam incident on the bottle mouth avoids the bottle mouth with the larger thickness of more than 1mm, so that the complete sterilization is realized. However, the wall thickness of the barrel-shaped container exceeds 0.8mm, and the arc tangent line of the barrel shoulder part and the thickness of the inner air are 100-500 mm, the electron beam energy is required to be at least more than 800keV, even more than 1MeV, the equipment cost and the ray protection cost are very high, and the volume size is also very large.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: aiming at the existing problems, the electron beam irradiation treatment device for the inner surface and the outer surface of the barrel-shaped container is provided, and the device can effectively irradiate the inner surface and the outer surface of the large-size barrel-shaped container on the basis of continuously using low-energy electron beam irradiation treatment without increasing the energy of electron beams.

The utility model discloses a technical scheme be like: an electron beam irradiation treatment apparatus for the inner and outer surfaces of a barrel-shaped container, comprising: an inner surface treatment unit, an outer surface treatment unit and a barrel-shaped container;

the inner surface processing unit comprises a first electron beam emitting device and a rotating magnetic field unit, the first electron beam emitting device is arranged above the opening of the barrel-shaped container, and the first electron beam emitting device is used for generating electron beams; the rotating magnetic field unit is arranged outside the barrel-shaped container and is used for generating a rotating magnetic field, and the rotating magnetic field enables the electron beams passing through the magnetic field to deflect radially and rotate;

the outer surface processing unit includes second electron beam emitting devices provided at both sides of the barrel container.

Furthermore, the rotating magnetic field unit comprises a frame iron core, the frame iron core is composed of four sections of straight iron cores, a first solenoid, a second solenoid, a third solenoid and a fourth solenoid are respectively sleeved on each section of straight iron core, and a shielding plate is further arranged on the inner side of the frame iron core.

Furthermore, the first coil, the second coil, the third coil and the fourth coil are respectively sleeved on the straight iron core where the first coil, the second coil, the third coil and the fourth coil are respectively arranged, and the first coil and the third coil form a group to generate a magnetic field parallel to the iron core where the first coil and the third coil are arranged; the second coil and the fourth coil form a group to generate magnetic fields parallel to the iron core where the second coil and the fourth coil are located, and the two groups of magnetic fields are orthogonal to form a deflection magnetic field together; the two groups of magnetic fields are sine wave alternating current magnetic fields with the same frequency and amplitude, the phase difference is 90 degrees, the synthesized deflection magnetic field is a rotating magnetic field, and the frequency is the same as the sine wave alternating current magnetic field. The rotating frequency of the magnetic field can be changed by adjusting the frequency of the exciting current in the coil, the amplitude of the deflection magnetic field can be adjusted by adjusting the amplitude of the exciting current in the coil, and the deflection angle of the electron beam can be controlled.

Further, the first electron beam emitting device includes a first electron beam module.

Furthermore, the second electron beam emitting device adopts a scanning type electron beam module, the scanning type electron beam module comprises a scanning box and a scanning magnet, the scanning box is connected with the first electron beam emitting device through the scanning magnet, and the scanning box is also provided with a leading-out window; and a water-passing measuring rod is arranged right in front of the leading-out window of the scanning box, and the measuring rod obliquely spans the diagonal line of the leading-out window. The measuring rod is used for measuring the beam intensity of the electron beam output by the scanning type electron beam module, feeding the beam intensity back to the control system and automatically stabilizing the output beam intensity. The columnar electron beam output by the first electron beam emitting device is scanned by the scanning magnet, flies for a certain distance in the scanning box, is unfolded into a strip-shaped electron beam and is output through the leading-out window, and the second electron beam module of the long-filament electronic curtain structure is replaced to finish the irradiation treatment of the outer surface of the barrel.

Furthermore, the second electron beam emitting device module adopts a long filament electron beam module, the long filament electron beam module is provided with a lead-out window, and the electron beam generated by the long filament electron beam module of the second electron beam module outputs a band-shaped electron beam through the lead-out window;

and a measuring rod for water passing is arranged right in front of the leading-out window of the second electron beam module of the long-filament electron beam module, the measuring rod obliquely spans the diagonal line of the leading-out window, and the measuring rod is used for measuring the beam current intensity of the electron beam output by the second electron beam module of the long-filament electron beam module, feeding back the beam current intensity to the control system and automatically stabilizing the output beam current intensity.

Further, the second electron beam emitting devices are placed on either side or laterally on both sides of the tub-shaped container. When the second electron beam emitting device is placed on the side, the barrel-shaped container sequentially passes through the electron beam emitting devices to complete irradiation treatment on the outer surface of the barrel-shaped container, and when the barrel-shaped container is placed transversely, the barrel-shaped container still needs to move downwards and back according to a preset movement speed curve when passing through the electron beam emitting devices to realize irradiation treatment on the outer surface of the barrel-shaped container.

Further, the second electron beam emitting devices are disposed opposite to each other at both sides of the tub-shaped container or at both sides of the tub-shaped container at a certain interval. When the two second electron beam emitting devices are arranged opposite to each other, the barrel-shaped container passes through the electron beam emitting devices which are arranged oppositely to complete the irradiation treatment of the two semi-circumference outer surfaces; when the two second electron beam emitting devices are arranged at a certain distance, the irradiation treatment of the outer surface of a half circumference of the barrel-shaped container is completed every time the barrel-shaped container passes through one electron beam emitting device, and the irradiation treatment of the outer surface of the barrel-shaped container of one circumference can be completed through the two second electron beam emitting devices.

Furthermore, the first electron beam emitting device is connected with a long conveying pipeline, one end of the long conveying pipeline is provided with a cooling water interface, the other end of the long conveying pipeline is provided with a leading-out window, the long conveying pipeline conveys the electron beams emitted by the first electron beam emitting device to the leading-out window, and the electron beams are transmitted to the rotating magnetic field through the leading-out window; and a cooling water channel is also arranged on the long conveying pipeline, one end of the cooling water channel is connected with the cooling water interface, and the other end of the cooling water channel is connected with the leading-out window. Compared with a water-cooled lead-out window, the lead-out electron beam intensity of the water-cooled lead-out window is higher, and the length of a long transport pipeline is longer. Is suitable for the treatment of the inner surface of a large-size barrel-shaped container and higher irradiation treatment speed.

Furthermore, the effective length range of the long conveying pipeline extending into the barrel-shaped container is 50-1000 mm.

Furthermore, a magnetic shielding layer is arranged on the long conveying pipeline, and the magnetic conducting material of the magnetic shielding layer is a high magnetic conducting material and comprises permalloy and the like. The magnetic shielding layer ensures that the electron beam cannot deflect under the influence of an external magnetic field before reaching the extraction window, and ensures that the electron beam can be smoothly extracted to the external atmosphere through the extraction window.

Furthermore, the leading-out window adopts a metal grating structure, the material of the leading-out window adopts metal copper and alloy thereof, and the window film of the leading-out window is supported and cooled in a mode of round holes, square holes, elliptical holes or strip-shaped holes, and is a metal film, a diamond film, a monocrystalline silicon film and other high-strength, good-heat-conductivity and corrosion-resistant films, preferably titanium and alloy materials thereof. The window film exiting the window serves to isolate the external atmosphere from the internal vacuum.

Furthermore, the energy range of the electron beams emitted by the first electron beam module and the long filament electron beam module is 150 keV-300 keV, the specific numerical value is determined according to the size of the inner diameter of the barrel-shaped container, and as the electron beams lose energy when moving in the air and have influence on the irradiation treatment effect, the larger the inner diameter of the barrel-shaped container is, the higher the energy of the electron beams is needed to ensure the irradiation treatment effect of the inner surface of the barrel-shaped container; the beam current of the electron beam is 0.5 mA-5 mA, and is determined according to the productivity of the production line, and the larger the beam current is, the higher the productivity is; the first electron beam module generates a columnar electron beam by adopting a traditional accelerating tube mode or a high-voltage socket introduction mode.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

firstly, irradiation treatment of the inner surface and the outer surface of a large-size barrel-shaped container is realized by adopting a low-energy electron beam;

the energy of the electron beam is low, only the surface of the container is irradiated, the damage to the barrel body material is small, no peculiar smell exists, and no harmful substance is separated out;

thirdly, the output beam intensity is increased, the processing speed of the production line is improved, and the efficiency is improved;

fourthly, the equipment has small volume, simple ray protection and low cost.

Drawings

Fig. 1 is a schematic side-up view of a long filament module.

Fig. 2 is a partially enlarged schematic view of the irradiation treatment of the inside of the container.

Fig. 3 is a schematic view of the transverse placement of the long filament modules.

Fig. 4 is a schematic view of the outer surface treatment module being displaced.

Fig. 5 is a schematic side-up view of a scanning electron beam module.

Fig. 6 is a schematic diagram of the lateral placement of a scanning electron beam module.

Fig. 7 is a schematic view of a long conveying pipeline structure.

Reference numerals: the device comprises a high-voltage power supply 1, a high-voltage cable 2, an electron beam module 3, a long conveying pipeline 3a, a long filament electron beam module 4, an extraction window 4a, a frame-type iron core 5, a coil 5a, a coil 5b, a coil 5c, a coil 5d, a barrel-shaped container 6, an electron beam 7, a shielding plate 8, a measuring rod 9, a scanning magnet 10, a scanning box 11, an extraction window 11a, a cooling water interface 12, a cooling water channel 13, an extraction window grating 14, an extraction window film 15, a magnetic shielding layer 16, an anti-corrosion shell 17, a long conveying pipeline wall 18, a high-voltage electrode 19 and a cathode 20.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides an outer surface electron beam irradiation processing apparatus in barrel-shaped container specifically includes: the device comprises a high-voltage power supply 1, a high-voltage cable 2, an electron beam module 3, a long conveying pipeline 3a, a long filament electron beam module 4, an extraction window 4a, a frame-type iron core 5, a coil 5a, a coil 5b, a coil 5c, a coil 5d, a barrel-shaped container 6, an electron beam 7, a shielding plate 8, a measuring rod 9, a scanning magnet 10, a scanning box 11, an extraction window 11a, a cooling water interface 12, a cooling water channel 13, an extraction window grating 14, an extraction window film 15, a magnetic shielding layer 16, an anti-corrosion shell 17, a long conveying pipeline wall 18, a high-voltage electrode 19 and a cathode 20.

Example 1

In this embodiment, a high voltage cable 2 is used to generate a columnar electron beam 7, as shown in fig. 2, a high voltage power supply 1 is connected to an electron beam module 3 and a long filament electron beam module 4 through the high voltage cable 2, and a dc high voltage generated by the high voltage power supply 1 and a power supply suspended at a cathode of an electron gun at a high voltage end are transmitted to the electron beam module 3 and the long filament electron beam module 4 through the high voltage cable 2.

An inner surface treatment unit:

as shown in fig. 1-2, the lower end of the electron beam module 3 is connected with a long conveying pipeline 3a, the end of the long conveying pipeline 3a is provided with an extraction window, and the columnar electron beams 7 generated by the electron beam module 3 are output through the extraction window at the end of the long conveying pipeline 3 a. The frame type iron core 5 is arranged below the long conveying pipeline 3a, the frame type iron core 5 is composed of four sections of straight iron cores, each section of straight iron core is sleeved with a coil 5a, a coil 5b, a coil 5c and a coil 5d, an electron beam 7 output by the long conveying pipeline 3a enters the frame type iron core 5, and under the action of a rotating magnetic field generated by the frame type iron core 5, the electron beam deflects for about 90 degrees and rotates rapidly by taking the long conveying pipeline 3a as an axis. And a shielding plate 8 is arranged between the end part leading-out window of the long conveying pipeline 3a and the frame type iron core 5, the coil 5a, the coil 5b, the coil 5c and the coil 5d and is used for shielding and absorbing the deflection rotating electron beam 7 and preventing the deflection rotating electron beam from bombarding the frame type iron core 5, the coil 5a, the coil 5b, the coil 5c and the coil 5d to cause damage. The electron beam module 3, the long conveying pipeline 3a, the shielding plate 8, the frame-type iron core 5, the coil 5a, the coil 5b, the coil 5c and the coil 5d move up and down together, the long conveying pipeline 3a is inserted into the barrel, and the rotating electron beams 7 output by the end leading-out window of the long conveying pipeline 3a irradiate the inner surface of the barrel-shaped container 6 from top to bottom.

The energy of the electron beam emitted by the electron beam module 3 is 150 keV-300 keV, which is determined according to the size of the inner diameter of the barrel-shaped container, and because the electron beam loses energy when moving in the air and has influence on the irradiation effect, the larger the inner diameter of the barrel-shaped container is, the higher the energy of the electron beam is needed to ensure the irradiation effect of the inner surface of the barrel-shaped container; the beam current of the electron beam is 0.5 mA-5 mA, and is determined according to the productivity of the production line, and the larger the beam current is, the higher the productivity is; the electron beam module 3 may be in the form of any electron accelerator capable of generating a columnar electron beam 7, such as: a conventional accelerating tube manner or a high-voltage socket introduction manner shown in the present embodiment, and the like are adopted.

The length of the long transport pipe 3a is substantially equivalent to the height of the barrel container 6, based on the fact that the electron beam 7 can be completely irradiated to the bottom inner surface of the barrel container 6.

The outer diameter of the long conveying pipeline 3a is slightly smaller than the caliber of the barrel-shaped container 6, so that the long conveying pipeline can freely enter and exit the barrel-shaped container 6.

As shown in fig. 7, the root of the long conveying pipeline 3a is provided with a cooling water interface 12, the pipeline is provided with a cooling water channel 13, one end of the cooling water channel 13 is connected with the cooling water interface 12, and the other end is connected with a leading-out window grille 14; external cooling water can reach the position of the extraction window grille 14 through the cooling water channel 13, and cools the extraction window grille 14 and the extraction window film 15.

The lead-out window 11a adopts a metal grid structure, and adopts a mode of round holes, square holes, elliptical holes or strip-shaped holes to support and cool the window film 15 of the lead-out window, and the window film 15 of the lead-out window is a metal film, a diamond film, a monocrystalline silicon film and other films with high strength, good heat conduction and corrosion resistance, and preferably adopts titanium and alloy materials thereof.

The window film 15 exiting the window serves to isolate the external atmosphere from the internal vacuum. Compared with a water-cooled lead-out window, the lead-out electron beam intensity of the water-cooled lead-out window is higher, and the length of a long transport pipeline is longer. Is suitable for the treatment of the inner surface of a large-size barrel-shaped container and higher production line speed.

The long conveying pipeline 3a is provided with a magnetic shielding layer 16, preferably made of permalloy, so that interference of external magnetic fields (including various magnetic fields such as a magnetic field for rotating and deflecting the electron beams and a magnetic field generated by other components) on the motion track of the internal electron beams 7 is avoided, and smooth extraction of the electron beams 7 is influenced.

The coil 5a, the coil 5b, the coil 5c and the coil 5d are respectively sleeved on four sides of the frame-type iron core 5, and the coil 5a and the coil 5b form a group to generate a magnetic field parallel to the iron core where the coil is positioned; the coil 5c and the coil 5d form a group, generate magnetic fields parallel to the iron core where the coils are located, and the two groups of magnetic fields are orthogonal and jointly form a deflection magnetic field; the two groups of magnetic fields are sine wave alternating current magnetic fields with the same frequency and amplitude, the phase difference is 90 degrees, the synthesized deflection magnetic field is a rotating magnetic field, and the frequency is the same as the sine wave alternating current magnetic field. The magnetic field rotation frequency can be changed by adjusting the frequency of the exciting current in the coil, the amplitude of the deflection magnetic field can be adjusted by adjusting the amplitude of the exciting current in the coil, and the deflection angle of the electron beam 7 is controlled.

Rotation frequency range of the electron beam 7: 1 Hz-500 Hz and a deflection angle range of 0-90 degrees, and the retention time and the deflection angle of the electron beam 7 are optimized according to the requirements of irradiation doses of different parts, thereby realizing the purpose of uniform irradiation treatment of the inner surface of the barrel-shaped container 6.

The shielding plate 8 converts the received electron beam 7 into an electric signal and outputs the electric signal to the control system, so that the output beam current measuring and calibrating device of the electron beam module 3 is realized, and the stability of the irradiation dose is ensured.

The lower part of barrel-shaped container 6 is equipped with the mobility control device, selects to use in this embodiment to lift the dish, realizes the reciprocating of barrel-shaped container through lifting the dish. A mechanical device that can realize simple up-and-down movement of the electron beam module 3 in the prior art can also be selected.

An outer surface processing unit:

in the present embodiment, the long-filament electron beam module 4 is selected to generate electron beams to perform irradiation treatment of the outer surface.

As shown in fig. 1, after being connected with a high-voltage power supply, two long filament electron beam modules 4 are arranged on two sides of a barrel-shaped container in an opposite side standing manner, an extraction window 4a is arranged on each long filament electron beam module 4, the length direction of the window of the extraction window 4a is parallel to the barrel-shaped container, the electron beams output by the long filament electron beam modules 4 output belt-shaped electron beams through the extraction window 4a, the belt-shaped electron beams output by the extraction window 4a are slightly higher than the barrel opening of the barrel-shaped container 6 and are about 50mm lower than the bottom of the barrel-shaped container 6, and the full coverage of the outer surface of the barrel opening, the outer surface of a barrel body and the outer surface of the barrel bottom of. The barrel-shaped container 6 passes through the exit window 4a in sequence, and is irradiated by the band-shaped electron beam outputted from the exit window 4a, thereby completing the irradiation treatment of the outer surface.

The energy of the electron beam output by the long-filament electron beam module 4 is 120 keV-300 keV, and the beam current is 1 mA-10 mA. The long-filament electron beam module 4 may be in any structure capable of generating a ribbon-like electron beam, and is preferably in a long-filament electron curtain structure.

A measuring rod 9 for water passing is arranged right in front of the leading-out window 4a, the measuring rod 9 obliquely spans a diagonal line of the leading-out window 4a, and the measuring rod 9 is used for measuring the beam intensity of the electron beam output by the long filament electron beam module 4, feeding the beam intensity back to the control system and automatically stabilizing the output beam intensity.

Preferably, the two long filament electron beam modules 4 may also be arranged at two sides of the barrel-shaped container in a staggered manner at a certain distance, the irradiation treatment of the outer surface of the barrel with half circumference is completed by passing through one long filament electron beam module 4 every time the barrel-shaped container is passed through, and the irradiation treatment of the outer surface of the barrel with one complete circumference can be completed by the two long filament electron beam modules 4.

The leading-out window 4a can be in a metal grid structure, and a window film of the leading-out window is supported and cooled in a mode of a round hole, a square hole, an elliptical hole or a strip-shaped hole, wherein the window film of the leading-out window 4a is a metal film, a diamond film, a monocrystalline silicon film and other films which are high in strength, good in heat conduction and corrosion resistant, and preferably made of titanium and titanium alloy materials. The window film exiting the window 4a serves to isolate the external atmosphere from the internal vacuum. The water-cooled lead-out window has stronger lead-out electron beam current than a lead-out window without water cooling. Is suitable for higher production line speed.

Example 2

Substantially the same as in example 1, except that, as shown in fig. 3, the long-filament electron beam modules 4 are disposed laterally on both sides of the barrel-shaped container, and the long-filament electron beam modules 4 disposed laterally are controlled to move up and down relative to the barrel-shaped container according to a predetermined movement speed profile when the outer surface of the barrel-shaped container is subjected to irradiation treatment.

Example 3

On the basis of the embodiment 1 or 2, a scanning electron beam module is selected to replace the long-filament electron beam module 4 for the irradiation treatment of the outer surface of the barrel-shaped container.

As shown in fig. 5, the scanning electron beam module includes a scanning magnet 10 and a scanning cassette 11. The output of the electron beam module 3 is sequentially connected with a scanning magnet 10 and scanning boxes 11, the two scanning boxes 11 are oppositely arranged on two sides of the barrel-shaped container in a standing mode, a leading-out window 11a is further arranged on each scanning box 11, the columnar electron beams 7 output by the electron beam module 3 are scanned by the scanning magnet 10, and after flying for a certain distance in the scanning boxes 11, the columnar electron beams 7 are spread into strip-shaped electron beams 7 and output through the leading-out windows 11a to replace the long filament electron beam module 4 with a long filament electron curtain structure. The position of the unfolded strip-shaped electron beam 7 is slightly higher than the height of the opening of the barrel-shaped container 6 and is lower than the bottom of the barrel-shaped container 6 by about 50mm, so that the full coverage of the outer surface of the opening of the barrel-shaped container 6, the outer surface of the barrel body and the outer surface of the barrel bottom is ensured. The barrel-shaped container 6 passes through the exit window 11a of the scanning box 11 of the electron beam module 3, and the irradiation treatment of the outer surface is completed.

Preferably, as shown in fig. 6, two scanning cartridges 11 are disposed laterally opposite to each other on both sides of the tub-shaped container, and the scanning cartridges 11 are moved up and down with respect to the tub-shaped container according to a predetermined moving speed profile while processing the outer surface of the tub-shaped container.

Preferably, as shown in fig. 4, two scanning cassettes 11 are disposed on both sides of the tub-shaped container with a certain offset.

Preferably, a water-flowing measuring rod is arranged right in front of the drawing-out window 11a of the scanning box 11, and obliquely spans a diagonal line of the drawing-out window to measure the beam output by the drawing-out window and perform feedback control on the output beam, so as to ensure stable output irradiation dose.

To sum up, the technical scheme of the utility model at least includes the following implementation modes:

preferred embodiment 1: barrel-shaped container 6 is at certain interval, enter into electron beam module 3 under in proper order, and the long transport pipeline 3a of electron beam module 3 inserts into barrel-shaped container 6 downwards, moves down and moves back according to predetermined velocity of motion curve, and simultaneously the electron beam 7 of quick rotation carries out irradiation treatment to the bucket internal surface, and outside shielding plate 8, frame iron core 5, solenoid 5a, solenoid 5b, solenoid 5c and solenoid 5d reciprocate with long transport pipeline 3a together.

Preferred embodiment 2: barrel-shaped container 6 enters into under the electron beam module 3 in proper order at certain interval, then move barrel-shaped container 6 up, let long transport pipeline 3a of electron beam module 3 enter barrel-shaped container 6, barrel-shaped container 6 moves up and moves back according to the predetermined velocity of motion curve, electron beam 7 of the fast revolution carries out the irradiation treatment to the bucket internal surface, electron beam module 3 and its long transport pipeline 3a, external shielding plate 8, frame iron core 5, solenoid 5a, solenoid 5b, solenoid 5c and solenoid 5d are fixed with long transport pipeline 3 a.

Preferred embodiment 3: the long filament electron beam module 4 is placed on the side, the long direction of the lead-out window is parallel to the axis of the barrel-shaped container 6, the barrel-shaped container 6 is arranged at a certain interval, and the irradiation treatment of the outer surfaces of the two semi-circumference barrels is completed through the lead-out windows 4a of the two oppositely placed long filament electron beam modules 4 in sequence. The two long filament electron beam modules 4 can be placed at a certain distance in a staggered manner, the barrel-shaped container completes irradiation treatment of the outer surface of a barrel with a half circumference through one long filament electron beam module 4, and complete irradiation treatment of the outer surface of the barrel with one circumference can be completed through the two long filament electron beam modules 4.

Preferred embodiment 4: the long filament electron beam modules 4 are transversely placed, the length direction of the lead-out window is vertical to the axis of the barrel-shaped container 6, the barrel-shaped containers 6 are spaced at certain intervals, and when the long filament electron beam modules sequentially reach the center position of the lead-out window of the long filament electron beam modules 4, the two oppositely placed long filament electron beam modules 4 move downwards and move backwards according to a preset movement speed curve, so that the irradiation treatment of the outer surfaces of the two semi-circular barrels is completed. The two long filament electron beam modules 4 can be placed at a certain distance in a staggered manner, and the irradiation treatment of the outer surface of a barrel with half circumference can be completed when the barrel-shaped container enters one long filament electron beam module 4, and the irradiation treatment of the outer surface of the barrel with one complete circumference can be completed through the two long filament electron beam modules 4.

Preferred embodiment 5: the long filament electron beam modules 4 are transversely placed, the length direction of the lead-out window is vertical to the axis of the barrel-shaped container 6, the barrel-shaped containers 6 are spaced at certain intervals, and when the long filament electron beam modules sequentially reach the center positions of the lead-out windows 4a of the two oppositely placed long filament electron beam modules 4, the barrel-shaped containers 6 move downwards and move backwards according to a preset movement speed curve, so that the irradiation treatment of the outer surfaces of the two semi-circular barrels is completed. The two long filament electron beam modules 4 can be placed at a certain distance in a staggered manner, and the irradiation treatment of the outer surface of a barrel with half circumference can be completed when the barrel-shaped container enters one long filament electron beam module 4, and the irradiation treatment of the outer surface of the barrel with one complete circumference can be completed through the two long filament electron beam modules 4.

In the preferable scheme 6, the output of the electron beam module 3 is connected with the scanning magnet 10 and the scanning box 11, the columnar electron beam 7 output by the electron beam module 3 is scanned by the scanning magnet 10, flies for a certain distance in the scanning box 11 and then is unfolded into a strip-shaped electron beam 7 to be output through the leading-out window 11a, and the long filament electron beam module 4 of the long filament electron curtain structure is replaced to finish the irradiation treatment of the outer surface of the barrel.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electron beam irradiation treatment apparatus for the inner and outer surfaces of a barrel-shaped container, comprising: an inner surface treatment unit, an outer surface treatment unit and a barrel-shaped container;

2. The electron beam irradiation treatment device for the inner and outer surfaces of the barrel-shaped container as claimed in claim 1, wherein said rotating magnetic field unit comprises a frame-shaped iron core, said frame-shaped iron core is formed by four straight iron cores, each straight iron core is covered by a first coil, a second coil, a third coil and a fourth coil, and a shielding plate is further disposed inside said frame-shaped iron core.

3. The electron beam irradiation treatment device for the inner and outer surfaces of a barrel-shaped container as claimed in claim 2, wherein said first and third wire packets generate a first magnetic field parallel to the straight iron core enclosed therein, said second and fourth wire packets generate a second magnetic field parallel to the straight iron core enclosed therein, and said first and second magnetic fields are orthogonal to each other and form a deflection magnetic field; the first magnetic field and the second magnetic field are sine wave alternating current magnetic fields with the same frequency and amplitude, and the phase difference between the first magnetic field and the second magnetic field is 90 degrees.

4. The electron beam irradiation processing apparatus as claimed in claim 1, wherein said first electron beam emitting means comprises a first electron beam module.

5. The electron beam irradiation processing device for the inner and outer surfaces of the barrel-shaped container as claimed in claim 1, wherein the second electron beam emitting device is a scanning electron beam module, the scanning electron beam module comprises a scanning box and a scanning magnet, the scanning box is connected to the first electron beam emitting device through the scanning magnet, the scanning box is further provided with an extraction window, a measuring rod for water is arranged right in front of the extraction window of the scanning box, the measuring rod obliquely spans a diagonal line of the extraction window, and the measuring rod is used for measuring the intensity of the electron beam output by the scanning electron beam module, feeding the intensity back to the control system, and automatically stabilizing the output beam intensity.

6. The electron beam irradiation treatment apparatus for the inner and outer surfaces of a barrel-shaped container as claimed in claim 1, wherein said second electron beam emitting means employs a long filament electron beam module, said long filament electron beam module being provided with an extraction window, and an electron beam generated by said long filament electron beam module being outputted as a ribbon-shaped electron beam through said extraction window;

and a measuring rod for water passing is arranged right in front of the leading-out window of the long filament electron beam module, the measuring rod obliquely spans the diagonal line of the leading-out window, and the measuring rod is used for measuring the beam current intensity of the electron beam output by the long filament electron beam module, feeding the beam current intensity back to the control system and automatically stabilizing the output beam current intensity.

7. The electron beam irradiation treatment apparatus for the inner and outer surfaces of a barrel container as set forth in any one of claims 1 to 6, wherein said second electron beam emitting means is disposed on either side or laterally on both sides of the barrel container.

8. The apparatus for electron beam irradiation treatment of the inner and outer surfaces of a barrel-shaped container as set forth in any one of claims 1 to 6, wherein said second electron beam emitting means are disposed opposite to each other on both sides of the barrel-shaped container or on both sides of the barrel-shaped container at a certain distance.

9. The electron beam irradiation treatment device for the inner and outer surfaces of the barrel-shaped container as claimed in any one of claims 1 to 6, wherein a long transport pipe is connected to the first electron beam emitting device, one end of the long transport pipe is provided with a cooling water port, the other end of the long transport pipe is provided with an extraction window, the long transport pipe transports the electron beam emitted from the first electron beam emitting device to the extraction window, and the electron beam is transmitted to the rotating magnetic field through the extraction window; and a cooling water channel is also arranged on the long conveying pipeline, one end of the cooling water channel is connected with the cooling water interface, and the other end of the cooling water channel is connected with the leading-out window.

10. The apparatus as claimed in claim 9, wherein the long transport pipe extends into the barrel container by an effective length of 50-1000 mm.

11. The electron beam irradiation treatment device for the inner and outer surfaces of the barrel-shaped container as claimed in claim 9, wherein a magnetic shielding layer is provided on the long transport pipe, and the magnetic conductive material of the magnetic shielding layer is selected from high magnetic conductive materials.

12. The electron beam irradiation treatment device for the inner and outer surfaces of the barrel-shaped container as claimed in claim 9, wherein the extraction window is made of metal grating, copper or its alloy, and is used for supporting and cooling the window film of the extraction window in a circular hole, square hole, elliptical hole or strip hole manner, and the window film of the extraction window is any one of metal film, diamond film and single crystal silicon film.

13. The apparatus as claimed in claim 6, wherein the first electron beam module and the long filament electron beam module emit electron beams with an energy range of 150keV to 300keV and a beam current range of 0.5mA to 5mA, and the first electron beam module generates the columnar electron beams by using a conventional accelerating tube method or a high voltage socket introduction method.