CN115973667A - Right-angle circuitous beam off-line system of vehicle-mounted box-type high-energy electron accelerator equipment - Google Patents

Abstract

The invention relates to a vehicle-mounted box type high-energy electron accelerator equipment right-angle roundabout beam unloading system, which belongs to the technical field of high-energy electron accelerators and structurally comprises a right-angle roundabout beam unloading and a right-angle roundabout corridor, and is characterized in that the right-angle roundabout beam unloading comprises 4 rotary object stages (1) and 5 goods driving roller conveyer belts (2), two adjacent goods driving roller conveyer belts are mutually vertically arranged and are connected through the 1 rotary object stage (1), the right-angle roundabout beam unloading is integrally in a 'n' -shaped roundabout structure, the right-angle roundabout corridor and a shielding cover which is arranged along the right-angle roundabout beam unloading and covers the outside of the right-angle roundabout beam unloading, and four walls of the roundabout corridor are all made of composite shielding materials. The invention adopts a right-angle circuitous gallery structure, abandons the existing annular labyrinth structure, has compact structure and convenient maintenance, saves space and avoids radiation leakage.

Description

Right-angle circuitous beam off-line system of vehicle-mounted box type high-energy electron accelerator equipment

Technical Field

The invention belongs to the technical field of high-energy electron accelerators, and particularly relates to a vehicle-mounted box-type high-energy electron accelerator equipment right-angle circuitous beam offline system.

Background

The vehicle-mounted box-type high-energy electron accelerator equipment is a vehicle-mounted high-energy electron accelerator irradiation system, and comprises a vehicle-mounted radiation-proof electron beam irradiation carriage, a vehicle-mounted power supply carriage, a vehicle-mounted microwave pulse generation and electron beam scanning carriage, a vehicle-mounted power generation and water cooling carriage and a vehicle-mounted operation and control carriage. The carriages are all in a truck container type three-dimensional structure, are arranged on a chassis of a truck trailer and are dragged, transported and moved by a traction head. The vehicle-mounted box-type high-energy electron accelerator equipment is widely used for irradiation processing of remote areas and scattered irradiation products, can also be used as a seasonal migratory irradiation processing center, is characterized by being flexible, convenient and efficient, and is novel high-energy electron accelerator irradiation equipment. The vehicle-mounted box type high-energy electron accelerator equipment overcomes the defect of regional limitation of the existing fixed-point irradiation processing center, can supplement the fixed-point irradiation center, improves the service range of irradiation processing, and has strong industrial competitiveness.

The existing high-energy electron accelerator for irradiation processing needs to build a huge radiation-proof processing workshop, all equipment is arranged on fixed factory building stations, the infrastructure is huge and complicated, and once the equipment is built, the equipment becomes a permanent special irradiation processing facility and cannot be changed into other equipment for use.

The irradiation beam off-line is an important component of irradiation processing, and the function of the irradiation beam off-line is to bear and move goods to be irradiated to pass through a ray scanning window at a constant speed and receive ray scanning irradiation. The existing electron beam irradiation processing station generally adopts an annular labyrinth type radiation-proof cement tunnel production line, has large volume and high manufacturing cost, and has longer tunnel production line perimeter in order to effectively improve the protection standard. The irradiation beam offline runs in a closed loop along the annular labyrinth type radiation-proof cement roadway, and when the beam offline passes through the area outside the roadway, loading and downloading operations of irradiation goods can be completed. The prior irradiation beam offline mainly comprises two parts of machinery and control. In the mechanical design, the structures for realizing the loading, conveying, turning and overturning of the goods are different and have the characteristics. In electronic control, the functions of motor driving, system safety protection, photoelectric detection and the like are generally included, and the safe, stable and reliable operation of the wiring harness is ensured.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a vehicle-mounted box-type high-energy electron accelerator equipment right-angle roundabout beam offline system.

The specific technical scheme of the invention is as follows:

the utility model provides a vehicle-mounted box high energy electron accelerator equips right angle circuitous bundle system of unloading, includes right angle circuitous bundle down line and right angle circuitous corridor, its characterized in that, right angle circuitous bundle down line includes 4 rotatory objective table 1 and 5 goods drive roller conveyer belt 2, and two adjacent goods drive roller conveyer belt mutually perpendicular place and connect through 1 rotatory objective table 1, right angle circuitous bundle down line wholly is "nearly" style of calligraphy circuitous structure, rotatory objective table 1 includes fixed platform 11, rotary mechanism 12 and roller 13, fixed platform 11 top surface is the square, rotary mechanism 12 is the disc and embeds in fixed platform 11, can freely rotate in fixed platform 11 under the drive of motor, roller 13 fixes the top surface at rotary mechanism 12, and all goods drive roller conveyer belt 2 and the roller 13 in each rotatory objective table 1 are at the top coplane, right angle circuitous corridor and the cover that arranges along right angle circuitous bundle down line are at the shielding cover of right angle circuitous bundle down line outside, and the four walls of right angle circuitous corridor composite shielding material constitutes by the right angle circuitous composite shielding.

Preferably, the structure of the composite shielding material for the right-angle circuitous gallery comprises a metal shell 31, a lead plate lining layer 32 and a metal alloy foam lining layer 33; the metal alloy foam lining layer 33 is obtained by growing 0.1 micron nickel, 0.5 micron copper and 0.1 micron nickel on a spongy foam substrate in sequence from inside to outside by a magnetron sputtering method.

Has the advantages that:

the invention provides a right-angle roundabout beam off-line system of a vehicle-mounted box-type high-energy electron accelerator device, which is mainly used for the vehicle-mounted box-type high-energy electron accelerator device. The matched beam lower line can be installed in a limited space, the leakage of rays can be effectively prevented, and the irradiation processing safety is ensured. The right-angle circuitous gallery structure abandons the existing annular labyrinth structure, has compact structure and convenient maintenance, saves space and avoids radiation leakage. The right-angle roundabout off-line system adopts the design following the structure of the right-angle roundabout gallery, is arranged in the right-angle roundabout gallery, and forms the right-angle roundabout off-line system together with the right-angle roundabout gallery, adopts a non-closed loop structure, can run in the forward and reverse directions, and meets various actual requirements of irradiation. The key technology lies in the structural design of the quarter turn. The right-angle roundabout off-line system is an important component of the vehicle-mounted box-type high-energy electron accelerator equipment, the design concept and the core technology of the system play a vital role in application and popularization of the vehicle-mounted box-type high-energy electron accelerator equipment, and the system has profound engineering practice significance.

Drawings

FIG. 1 is a schematic view of a right-angle detour offline structure according to the present invention.

Fig. 2 is a schematic view of the structure of the composite shielding material for the right-angle circuitous gallery of the present invention.

Fig. 3 is a schematic view of the present invention installed in a car mounted box type high energy electron accelerator equipped electron beam irradiation carriage.

Detailed Description

EXAMPLE 1 Overall Structure and operating principle of the invention

The invention relates to a vehicle-mounted box type high-energy electron accelerator equipment right-angle roundabout beam unloading system which comprises a right-angle roundabout beam unloading line and a right-angle roundabout corridor, wherein the right-angle roundabout beam unloading line is structurally shown in figure 1 and comprises 4 rotary object stages 1 and 5 goods driving roller conveyor belts 2, two adjacent goods driving roller conveyor belts are vertically arranged and are connected through the 1 rotary object stage 1, the right-angle roundabout beam unloading line is integrally in a 'n' -shaped roundabout structure, the rotary object stage 1 comprises a fixed platform 11, a rotating mechanism 12 and rollers 13, the top surface of the fixed platform 11 is square, the rotating mechanism 12 is disc-shaped and is embedded in the fixed platform 11 and can freely rotate in the fixed platform 11 under the driving of a motor, the rollers 13 are fixed on the top surface of the rotating mechanism 12, and all the goods driving roller conveyors 2 and the rollers 13 in each rotary object stage 1 are coplanar at the top. When a photoelectric detector arranged around the rotary object stage detects that goods reach the rotary object stage 1, the roller 13 of the rotary object stage stops rotating, a driving motor in the rotary mechanism 12 works to drive the rotary mechanism 12 to rotate 90 degrees (clockwise or anticlockwise), so that the roller 13 and the goods driving roller conveyer belt behind the roller 13 keep the same transmission direction, then the roller 13 starts working to convey the goods on the roller 13 to the next goods driving roller conveyer belt, and the rotary mechanism 12 rotates 90 degrees again to ensure that the roller 13 and the goods driving roller conveyer belt ahead the roller 13 keep the same transmission direction.

The right-angle roundabout corridor and a shielding cover (not shown in the figure) which is arranged along the right-angle roundabout off-line and covers the outside of the right-angle roundabout off-line are arranged, the right-angle roundabout corridor is of a closed rectangular section structure, four walls of the right-angle roundabout corridor are made of composite shielding materials, as shown in the figure 2, the outermost layer is a metal shell 31, a lead plate lining layer 32 is embedded on the inner side of the metal shell 31, and a layer of metal alloy foam lining layer 33 is lined on the inner side of the lead plate lining layer 32. With the structure, a double-shielding absorption box body structure consisting of the embedded lead plate lining layer 32 and the metal alloy foam lining layer 33 is formed. Wherein, the embedded lead plate lining layer 32 reflects stray rays and prevents the rays from leaking to the outside; the metal alloy foam backing layer 33 may absorb stray radiation that is directly incident and stray radiation that is reflected back from the lead plate backing layer 32.

The metal alloy foam lining layer 33 can be made of common metal alloy foam shielding materials, or can be obtained by sequentially growing 0.1 micron nickel, 0.5 micron copper and 0.1 micron nickel on a spongy foam substrate from inside to outside by a magnetron sputtering method.

Embodiment 2 application of the present invention to a vehicle-mounted box-type high-energy electron accelerator device

The structure of a right-angle circuitous wiring carriage in the vehicle-mounted box type high-energy electron accelerator equipment is shown in figure 3, h is a container type shell, and a lead plate is embedded in the shell and used for shielding radiation leakage. The metal alloy foam is attached to the inner layer of the lead plate and is used for absorbing rays and avoiding scattering of the rays. The box body shell forms the outermost safety protection of the vehicle-mounted radiation-proof electron beam irradiation wagon box. The box body a and b are an input channel and an output channel which are designed by adopting the right-angle roundabout wiring system, the output part and the input part are of symmetrical structures, and the structural composition is the same. c. d, respectively, the irradiation cavity and the equipment room, wherein the irradiation cavity and the equipment room both adopt a cubic structure, and the inner sides of the irradiation cavity and the equipment room both adopt lead plates and metal alloy foam to shield and absorb rays. The irradiation cavity is a goods irradiation processing core part and is in seamless tight connection with the output channel a and the input channel b. Stray ray leakage generated during irradiation processing of the irradiation cavity is limited in the gallery, and forms an innermost safety barrier. And the carriage body forms the outermost safety barrier. This double shielding ensures safe operation of the irradiation process. The goods entrance e and the goods exit g are respectively arranged at the entrance of the input channel and the exit of the output channel, and stray leakage rays are shielded and absorbed after passing through the right-angle circuitous gallery, so that the safety protection standard is reached. And a maintenance access f is reserved on the end face of the carriage, and a shielding door of the maintenance access f still adopts double protection of a lead plate and metal alloy foam. The maintenance access is convenient for equipment installation and maintenance.

Claims (2)

1. The utility model provides a vehicle-mounted box high energy electron accelerator equips right angle circuitous bundle system of unloading, includes right angle circuitous bundle downlead and right angle circuitous corridor, its characterized in that, right angle circuitous bundle downlead includes 4 rotatory objective table (1) and 5 goods drive roller conveyer belt (2), and two adjacent goods drive roller conveyer belt mutually perpendicular place and connect through 1 rotatory objective table (1), right angle circuitous bundle downlead whole is "ji" style of calligraphy circuitous structure, rotatory objective table (1) includes fixed platform (11), rotary mechanism (12) and roller (13), fixed platform (11) top surface is the square, rotary mechanism (12) are disc and embedded in fixed platform (11), can freely rotate in fixed platform (11) under the drive of motor, roller (13) are fixed on the top surface of fixed platform (12), and all goods drive roller conveyer belt (2) and each revolving stage (1) in the objective table (13) are at the top coplane, right angle circuitous corridor and the shielding material that is arranged along the circuitous cover of right angle circuitous bundle in right angle circuitous bundle, and the shielding off line constitutes by the shielding material outside.

2. The system of claim 1, wherein the structure of the composite shielding material for the right angle detour corridor comprises a metal shell (31), a lead plate lining (32) and a metal alloy foam lining (33); the metal alloy foam lining (33) is obtained by growing 0.1 micron nickel, 0.5 micron copper and 0.1 micron nickel on a spongy foam substrate in sequence from inside to outside by a magnetron sputtering method.

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