CN108022666B - Self-shielding beam lower device for irradiation of rubberized curtain cloth - Google Patents
Self-shielding beam lower device for irradiation of rubberized curtain cloth Download PDFInfo
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- CN108022666B CN108022666B CN201711429174.XA CN201711429174A CN108022666B CN 108022666 B CN108022666 B CN 108022666B CN 201711429174 A CN201711429174 A CN 201711429174A CN 108022666 B CN108022666 B CN 108022666B
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- 239000004744 fabric Substances 0.000 title claims description 49
- 238000010521 absorption reaction Methods 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 10
- 239000003292 glue Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
-
- 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
- G21K5/04—Irradiation devices with beam-forming means
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Particle Accelerators (AREA)
Abstract
The invention provides a self-shielding beam lower device for irradiation of a rubberized curtain, which comprises a shielding body, wherein a left shielding plate is convexly arranged on the left side wall in the shielding body, a right shielding plate is convexly arranged on the right side wall in the shielding body, a supporting frame is arranged on the bottom wall of the shielding body, the shielding body is divided into a main shielding chamber, a left auxiliary shielding chamber and a right auxiliary shielding chamber through the left shielding plate, the right shielding plate and the supporting frame, an outer inlet is arranged on the left side wall, an outer outlet is arranged on the right side wall, the supporting frame is respectively communicated with the left shielding plate and the right shielding plate to form an inner inlet and an inner outlet, the left auxiliary shielding chamber is communicated with the main shielding chamber, the main shielding chamber is communicated with the right auxiliary shielding chamber, a plurality of guide rollers are arranged on the supporting frame, an absorption target fixedly arranged on the supporting frame is vertically opposite to a scanning window of an electronic accelerator fixedly arranged on the top wall of the shielding body, and the rubberized curtain in the main shielding chamber passes through the absorption target and the scanning window. The radiation-shielding type solar cell panel effectively utilizes space distribution while shielding radiation, and has small occupied area, material loss and weight.
Description
Technical Field
The invention relates to the technical field of rubber radiation processing, in particular to a self-shielding beam lower device for irradiation of rubber-coated curtain cloth.
Background
With the progress of technical improvement and upgrading in the tire industry, more and more tire manufacturers introduce radiation pre-vulcanization technology and equipment in the tire production, and the revolutionary tire manufacturing technology has been embodied in related patent technologies, such as chinese invention patents CN200810105983.X, CN200810105985.9, CN200810105986.3 and CN200910090089.4. The technology requires the addition of a modular electron accelerator irradiation system in the tire production line, and requires the system to have compact equipment and small occupied area. In particular, for some old production line reformation, because the factory building is already shaped and the position is not reserved for the irradiation system in advance, higher requirements are put forward on the equipment of the electron accelerator irradiation system, and the most important factors for determining the occupied area of the electron accelerator irradiation system are the design of the self-shielding structure and the design of the under-beam transportation system.
At present, in order to ensure the shielding effect of the self-shielding structure, the existing self-shielding structure and the existing beam lower device of the electronic accelerator at home and abroad adopt measures such as directly increasing shielding space and increasing shielding baffles in the transmission direction of products, so that the occupied area of the self-shielding structure is large, the volume is large, consumable materials and weight of a shielding body are increased, and the requirements cannot be met.
Disclosure of Invention
The invention aims to provide a self-shielding beam lower device for irradiation of a rubberized curtain fabric, which effectively utilizes space distribution while shielding rays, and has the advantages of compact structure, small occupied area, low material loss and light weight.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a self-shielding beam lower device for irradiation of a coated curtain cloth, which comprises a hollow shielding body, wherein a left shielding plate which is horizontally arranged is arranged on the left side wall in the shielding body in a protruding mode, a right shielding plate which is horizontally arranged is arranged on the right side wall in the shielding body in a protruding mode, a supporting frame which is arranged between the left shielding plate and the right shielding plate is arranged on the bottom wall of the shielding body, the shielding body is divided into a main shielding chamber which is arranged above the shielding body, a left auxiliary shielding chamber and a right auxiliary shielding chamber which are arranged below the main shielding chamber through the left shielding plate, the left side wall is provided with an outer inlet for the coated curtain cloth to penetrate into the left auxiliary shielding chamber, an outer inlet for the coated curtain cloth to penetrate out of the right auxiliary shielding chamber is arranged on the right side wall, an inner inlet is formed between the supporting frame and the left shielding plate, an inner outlet is formed between the supporting frame and the right shielding plate, the left auxiliary shielding chamber is communicated with the main shielding chamber through the inner inlet, the main shielding chamber is communicated with the inner shielding chamber through the inner outlet, the auxiliary shielding chamber is fixedly arranged on the side wall of the shielding chamber is fixedly arranged on the shielding chamber, the side of the shielding chamber is fixedly arranged on the side of the shielding chamber, the side of the shielding chamber is fixedly arranged on the shielding chamber, and the side of the shielding chamber is fixedly arranged on the side of the shielding chamber, and the side of the shielding device.
In a preferred embodiment, a beam baffle capable of swinging is arranged in the main shielding chamber, one end of the beam baffle is pivoted to the shielding body, and the other end of the beam baffle can be blocked between the scanning window and the absorption target.
In a preferred embodiment, the beam baffle, the absorption target and the guide roller are all made of stainless steel, circulating cooling water is arranged in the beam baffle and the absorption target, and the diameter of the guide roller is 100-250 mm.
In a preferred embodiment, the number of the guide rollers is four, two guide rollers are symmetrically arranged above the supporting frame, and the other two guide rollers are respectively opposite to the outer inlet and the outer outlet.
In a preferred embodiment, an air cooling mechanism is arranged in the main shielding chamber, the air cooling mechanism is positioned at one side of the electron accelerator, and an air outlet of the air cooling mechanism is opposite to an outlet of the scanning window.
In a preferred embodiment, the side walls of the shielding body include a left side wall, a right side wall, a front side wall and a rear side wall, the top wall and the side walls of the shielding body are formed by stacking four layers of steel plates, and the left shielding plate and the right shielding plate are formed by stacking three layers of steel plates.
In a preferred embodiment, the thicknesses of the top wall and the side wall of the shielding body are 150 mm-300 mm, and the thicknesses of the left shielding plate and the right shielding plate are 100 mm-200 mm.
In a preferred embodiment, the outer inlet and the outer outlet are horizontally collinear, and the inner inlet and the inner outlet are both perpendicular to the bottom wall of the shield.
In a preferred embodiment, the width of the outer inlet, the width of the outer outlet, the width of the inner inlet and the width of the inner outlet are all 10mm to 15mm, and the heights of the outer inlet and the outer outlet from the ground are all 50mm to 70mm.
In a preferred embodiment, the distance between the rubberized curtain cloth which is irradiated in the main shielding room and the scanning window is 60 mm-100 mm.
The self-shielding beam lower device for irradiation of the rubberized curtain fabric has the characteristics and advantages that:
1. according to the invention, two shielding plates are symmetrically arranged on two opposite side walls in the shielding body, and the supporting frame arranged between the two shielding plates is arranged on the bottom wall of the shielding body, so that the shielding body is divided into a main shielding chamber positioned above and a left auxiliary shielding chamber and a right auxiliary shielding chamber which are positioned below the main shielding chamber and are symmetrically arranged through the supporting frame and the two shielding plates, the requirement of shielding performance is met, the ingenious space design is performed, the space in the shielding body is fully utilized, the space in the transmission direction of a product is saved, the occupied area of the shielding system in the transmission direction of the product is shortened to about 1.2m from the existing 2.0 m, the structure is compact, the occupied area and the volume are reduced, and the consumable of the shielding system is greatly reduced.
2. According to the invention, the outer inlet is arranged on the left side wall of the shielding body, the outer outlet is arranged on the right side wall of the shielding body, and the inner inlet and the inner outlet are respectively arranged between the supporting frame and the left shielding plate and between the supporting frame and the right shielding plate, so that the rubber-covered curtain cloth enters the left auxiliary shielding chamber through the outer inlet, enters the main shielding chamber through the inner inlet, enters the right auxiliary shielding chamber through the inner outlet and passes out of the right auxiliary shielding chamber through the outer outlet under the guidance of the plurality of guide rollers, the irradiation of the rubber-covered curtain cloth in the main shielding chamber is realized, the occupied area is reduced, and the material loss and the weight of the shielding system are reduced.
3. According to the invention, the electron accelerator is arranged on the top wall of the shielding body, the absorption target is arranged on the supporting frame, and the scanning window of the electron accelerator is vertically opposite to the absorption target, so that the radiation after the irradiation of the glue coating curtain cloth by the scanning window of the electron accelerator is absorbed by the absorption target; meanwhile, a beam baffle is arranged in the main shielding chamber, so that an electron accelerated scanning window is isolated from the glue coated curtain cloth through the beam baffle when irradiation is not needed; and cooling the outlet of the scanning window of the electron accelerator by arranging an air cooling mechanism in the main shielding chamber, and cooling by introducing circulating cooling water into the beam baffle and the absorption target.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the self-shielding beam device for irradiation of the rubberized fabrics.
Reference numerals illustrate:
1. coating the rubber curtain cloth; 2. an outer inlet; 3. a left auxiliary shielding chamber; 4. a left shielding plate; 5. an inner inlet; 6. a guide roller; 7. an air cooling mechanism; 8. a main shielding chamber; 9. a shield; 10. a left side wall; 11. a top wall; 12. a right side wall; 13. a scanning window; 14. a beam baffle; 15. an absorption target; 16. a support frame; 17. an inner outlet; 18. a right shield plate; 19. a right auxiliary shield room; 20. an outer outlet; 21. ground surface; 22. a bottom wall.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless defined otherwise, all directions, such as up, down, left, right, front, rear, etc., referred to herein are relative to the up, down, left, right, front, rear, etc., directions of fig. 1, as shown in the present invention, and are described herein.
As shown in fig. 1, the invention provides a self-shielding beam lower device for irradiation of a rubberized curtain cloth, which comprises a hollow shielding body 9, wherein a left side wall 10 in the shielding body 9 is convexly provided with a left shielding plate 4 which is horizontally arranged, a right side wall 12 in the shielding body 9 is convexly provided with a right shielding plate 18 which is horizontally arranged, a bottom wall 22 of the shielding body 9 is provided with a supporting frame 16 which is positioned between the left shielding plate 4 and the right shielding plate 18, the shielding body 9 is divided into a main shielding chamber 8 positioned above and a left auxiliary shielding chamber 3 and a right auxiliary shielding chamber 19 positioned below by the left shielding plate 4, the right shielding plate 18 and the supporting frame 16, an outer inlet 2 for the rubberized curtain cloth 1 to penetrate into the left auxiliary shielding chamber 3 is arranged on the left side wall 10, an outer outlet 20 for the rubberized curtain cloth 1 to penetrate out of the right auxiliary shielding chamber 19 is arranged on the right side wall 12, an inner inlet 5 is formed between the support frame 16 and the left shielding plate 4, an inner outlet 17 is formed between the support frame 16 and the right shielding plate 18, the left auxiliary shielding chamber 3 is communicated with the main shielding chamber 8 through the inner inlet 5, the main shielding chamber 8 is communicated with the right auxiliary shielding chamber 19 through the inner outlet 17, a plurality of guide rollers 6 for guiding the rubberized curtain 1 to sequentially pass through the inner inlet 5, the inner outlet 17 and the outer outlet 20 are arranged on the support frame 16, an absorption target 15 is fixedly arranged on the support frame 16, an electron accelerator is fixedly arranged on the top wall 11 of the shielding body 9, the absorption target 15 is vertically opposite to the scanning window 13 of the electron accelerator, and the rubberized curtain 1 which enters the main shielding chamber 8 and is irradiated is arranged between the absorption target 15 and the scanning window 13.
Specifically, the shielding body 9 is generally in a box shape and is formed by surrounding a top wall, four side walls and a bottom wall, so that the glue-coated curtain cloth 1 irradiates in the box-shaped shielding body, radiation is avoided to workers and the like, the height of the shielding body 9 is larger than the width of the shielding body 9, space in the product transmission direction is saved, the left shielding plate 4 and the right shielding plate 18 are respectively and horizontally protruded on the opposite left side wall 10 and right side wall 12 in the shielding body 9, namely, the left shielding plate 4 and the right shielding plate 18 are vertically arranged with the side walls, namely, the left side wall 10 is protruded with the left shielding plate 4, the left side wall 10 can be connected in a welding way or in other ways, the right side wall 12 is protruded with the right shielding plate 18, the left shielding plate 4 and the right shielding plate 18 can be connected in a welding way or in other ways, the left shielding plate 4 and the right shielding plate 18 are horizontally and collinearly arranged symmetrically along the vertical central axis of the shielding body 9, and in addition, the auxiliary shielding plate can be arranged at the position opposite to the outlet of the scanning window 13 on the side wall, so as to enhance the shielding effect; the support frame 16 is fixedly arranged on the bottom wall of the shielding body 9 and extends upwards, the support frame 16 is arranged between the left shielding plate 4 and the right shielding plate 18, so that the shielding body 9 is divided into a main shielding chamber 8 positioned above and left auxiliary shielding chambers 3 and right auxiliary shielding chambers 19 positioned at two sides below, rays are better isolated, the left side edge of the support frame 16 is opposite to the outer inlet 2 and the left shielding plate 4, the right side edge of the support frame 16 is opposite to the outer outlet 20 and the right shielding plate 18, an inner inlet 5 is formed between the left side edge of the support frame 16 and the left shielding plate 4, an inner outlet 17 is formed between the right side edge of the support frame 16 and the right shielding plate 18, a groove is formed above the support frame 16, an absorption target 15 is fixedly arranged in the groove, the cross section of the absorption target 15 is in a right angle shape, two ends of the absorption target 15 are respectively fixedly arranged on two side walls of the groove, the right angle end of the absorption target 15 is opposite to the scanning window 13 up and down, the left side wall 11 is positioned on the vertical central axis of the shielding body 9, an electron accelerator is fixedly arranged on the top wall 11 in the shielding body 9, so that the electron accelerator is correspondingly moved to the main shielding chamber 8, and the electron accelerator is not covered in the curtain 1.
Further, as shown in fig. 1, a beam baffle 14 capable of swinging is disposed in the main shielding chamber 8, one end of the beam baffle 14 is pivoted to the shielding body 9, the other end of the beam baffle 14 can be blocked between the scanning window 13 and the absorbing target 15, specifically, the beam baffle 14 is disposed between an outlet of the scanning window 13 and an irradiated product when the product is not required to be irradiated, so as to block the outlet of the scanning window 13 of the electron accelerator, prevent the electron beam from irradiating the product, and when the product is required to be irradiated, the beam baffle 14 can be moved to one side of the scanning window 13, so that the electron beam can be irradiated to the product without being blocked; the cross section of the beam baffle 14 is generally L-shaped, the lower end of the beam baffle 14 is a free end, the free end can be blocked between the scanning window 13 and the absorption target 15, or can be arranged between the free end and the scanning window, the upper end of the beam baffle 14 can be fixedly arranged on the front side wall or the rear side wall of the shielding body 9 through a cross rod, the beam baffle 14 and the cross rod can be connected in a swinging way, or the upper end of the beam baffle 14 is connected with a transverse plate on the shell of the electronic accelerator, the beam baffle 14 and the transverse plate are connected in a swinging way, the upper end of the beam baffle 14 is connected with a swinging arm of a PLC control system, so that the swinging arm is controlled to swing, the beam baffle 14 is driven to swing through the swinging arm, and the setting of a swinging angle is used for realizing positioning, so that the beam baffle 14 is positioned at an open position or a closed position, wherein the PLC control system is driven through a pneumatic device and controlled by a positioner, the PLC control system mainly comprises a control unit and a driving unit, the control unit comprises a controller and a display so that the position of the beam baffle 14 can be displayed in real time, the driving unit comprises the swinging arm and a cylinder, the cylinder is connected with the control unit, and the control unit is electrically connected with the controller, so that the swing arm is not set in the prior art.
Further, as shown in fig. 1, the four guide rollers 6 are symmetrically arranged above the support frame 16, the other two guide rollers 6 are respectively opposite to the outer inlet 2 and the outer outlet 20, specifically, the guide rollers 6 are generally cylindrical, bearings are respectively penetrated at two ends of the guide rollers 6, the guide rollers 6 are rotatably arranged on the mounting frames of the support frame 16 through the bearings, wherein two mounting frames are respectively arranged at two sides above the support frame 16, two mounting frames are respectively arranged at two side edges of the support frame 16, each mounting frame extends along the front-rear direction, two bearings are arranged on each mounting frame at intervals along the extending direction, a guide roller 6 is fixedly arranged between the two bearings of each mounting frame, the guide rollers 6 can drive the rubber curtain cloth 1 to rotate, the guide rollers 6 are arranged at the four positions, so that the glue coated curtain cloth 1 entering the left auxiliary shielding chamber 3 through the outer inlet 2 can complete 90-degree angle change and enter the main shielding chamber 8, and the glue coated curtain cloth 1 in the main shielding chamber 8 is convenient to be approximately horizontal so as to be beneficial to receiving irradiation, and the glue coated curtain cloth 1 which is received after being irradiated enters the right auxiliary shielding chamber 19 after completing 90-degree angle change and then horizontally passes out of the outer outlet 20, preferably, one end of the guide roller 6 can penetrate out of the bearing and be meshed with an output shaft of the motor through a speed reducer, so that the motor drives each guide roller 6 to rotate, and other numbers, such as 6, 8 or more, can be set according to actual needs with respect to the number of the guide rollers 6, so long as the transmission requirements can be met, the transmission requirements are not limited, and the design bearing tension of the guide roller 6, the bearing and the support frame 16 is more than 2.0 tons so as to meet the use requirements.
Preferably, the beam baffle 14, the absorbing target 15 and the guiding roller 6 are all made of stainless steel, wherein the stainless steel material can be 304 series or 316 series, and other suitable materials can be adopted, but are not limited thereto; the beam baffle 14 and the absorption target 15 are internally provided with circulating cooling water, wherein a channel is arranged inside the beam baffle 14, a container for containing the cooling water and a first circulating pump are arranged outside the shielding body 9, an inlet of the first circulating pump is communicated with the container, an outlet of the first circulating pump is communicated with an inlet of the channel of the beam baffle 14, an outlet of the channel of the beam baffle 14 is communicated with the container, thereby realizing circulation of the cooling water in the channel leading to the beam baffle 14, realizing cooling, and similarly, the absorption target 15 is internally provided with the channel, a second circulating pump is arranged outside the shielding body 9, an inlet of the second circulating pump is communicated with the container, an outlet of the second circulating pump is communicated with an inlet of the channel of the absorption target 15, and an outlet of the channel of the absorption target 15 is communicated with the container, thereby realizing circulation of the cooling water in the channel leading to the absorption target 15, and realizing cooling; the diameter of the guide roller 6 is 100 mm-250 mm, the arrangement of the size is not only beneficial to the utilization of the space in the shielding body 9, but also can fully meet the guide requirement of the rubberized curtain cloth 1, and of course, the size can be set to other proper sizes according to actual needs without limitation.
Further, as shown in fig. 1, an air cooling mechanism 7 is disposed in the main shielding chamber 8, the air cooling mechanism 7 is located at one side of the electronic accelerator, an air outlet of the air cooling mechanism 7 is opposite to an outlet of the scanning window 13, so as to cool a titanium film of the scanning window 13, wherein the air cooling mechanism 7 includes a fan and an air-dispersing pipeline, the fan is disposed outside the shielding body 9, the air-dispersing pipeline penetrates from a top wall 11 or a side wall of the shielding body 9 and extends to an outlet of the scanning window 13, so that an air outlet of the air-dispersing pipeline is opposite to an outlet of the scanning window 13, and cold air pumped by the fan is conveyed by the air-dispersing pipeline and then sprayed out through the air outlet, thereby realizing cooling.
Further, as shown in fig. 1, the side walls of the shielding body 9 include the left side wall 10, the right side wall 12, the front side wall and the rear side wall, the top wall 11 and the side wall of the shielding body 9 are formed by stacking four layers of steel plates, the bottom wall 22 of the shielding body 9 is formed by stacking one layer of steel plate, the left shielding plate 4 and the right shielding plate 18 are formed by stacking three layers of steel plates so as to meet the radiation shielding requirement, and of course, the shielding body can be set to be stacked by other numbers of steel plates according to actual requirements, the shielding body is not provided, and the multi-layer steel plates can be realized through technologies such as bonding, welding, crimping and the like; preferably, the thicknesses of the top wall 11 and the side wall of the shielding body 9 are 150 mm-300 mm, and the thicknesses of the left shielding plate 4 and the right shielding plate 18 are 100 mm-200 mm, so as to realize better radiation shielding.
Further, as shown in fig. 1, the outer inlet 2 and the outer outlet 20 are horizontally collinear, that is, the outer inlet 2 and the outer outlet 20 are both horizontally arranged, and the inner inlet 5 and the inner outlet 17 are both perpendicular to the bottom wall 22 of the shielding body 9, that is, the inner inlet 5 and the inner outlet 17 are both vertically arranged, so that space is fully utilized, and the transmission and irradiation of the rubberized curtain fabric 1 are realized. Preferably, the width of the outer inlet 2, the width of the outer outlet 20, the width of the inner inlet 5 and the width of the inner outlet 17 are all 10 mm-15 mm, so that the glue curtain 1 can be conveniently and uninhibited to be worn, and the height of the outer inlet 2 and the outer outlet 20 from the ground 21 is 50 mm-70 mm, so that the outer inlet 2 corresponds to and communicates with the left auxiliary shielding chamber 3 at the left lower part of the main shielding chamber 8, and the outer outlet 20 corresponds to and communicates with the right auxiliary shielding chamber 19 at the right lower part of the main shielding chamber 8.
Further, the distance between the rubberized curtain cloth 1 which is received by irradiation in the main shielding chamber 8 and the scanning window 13 is 60 mm-100 mm, so that irradiation is better received.
The invention relates to a self-shielding beam lower device for irradiation of a rubberized curtain fabric, in particular to an electron accelerator self-shielding beam lower device for radiation pre-vulcanization of the rubberized curtain fabric, which is designed in an axisymmetric structure and is suitable for radiation crosslinking processing of the rubberized curtain fabric with framework materials and plastic coiled materials with certain strength, in a preferred embodiment, the thicknesses of the top wall 11 and the side wall of a shielding body 9 are 200mm, the thickness of the bottom wall 22 of the shielding body 9 is 50mm, the width between the left side wall 10 and the right side wall 12 of the shielding body 9 (i.e. the occupied area of a shielding system in the transmission direction of a product) is 1.2m, the thicknesses of a left shielding plate 4 and a right shielding plate 18 are 150mm, the widths of an outer inlet 2, an outer outlet 20, an inner inlet 5 and an inner outlet 17 are 15mm, the heights of the outer inlet 2 and the outer outlet 20 are 60mm, the distance between the horizontally-arranged rubberized curtain fabric 1 in a scanning window 13 and a main shielding chamber 8 is 100mm, the diameter of a guide roller is 150mm, and the leakage rate at a small specific dose of 0 mu v/h from the outer surface of the shielding body 9 is 0.8 mm.
Before irradiation work, the self-shielding beam lower device for irradiation of the glue-coated curtain cloth firstly controls the beam baffle 14 to swing through a PLC system so that the beam baffle leaves the outlet of the scanning window 13 of the electronic accelerator to reach an open position, avoids blocking X rays, simultaneously opens a first circulating pump and a second circulating pump which are respectively communicated with the beam baffle 14 and the absorption target 15, and opens a fan of the air cooling mechanism 7; when the irradiation work is carried out, the glue-coated curtain cloth 1 horizontally enters the left auxiliary shielding chamber 3 through the outer inlet 2 on the left side wall 10 of the shielding body 9, and enters the main shielding chamber 8 through the inner inlet 5 between the left shielding plate 4 and the supporting frame 16 vertically upwards by the angle of 90 degrees in a anticlockwise manner under the guidance of the guide roller 6 which is positioned in the main shielding chamber 8 and fixedly arranged at the left upper part of the supporting frame 16, passes through the scanning window 13 horizontally for irradiation treatment, then enters the right auxiliary shielding chamber 19 through the angle of 90 degrees under the guidance of the guide roller 6 which is positioned in the main shielding chamber 8 and fixedly arranged at the right upper part of the supporting frame 16, enters the right auxiliary shielding chamber 19 through the inner outlet 17 vertically downwards by the angle of 90 degrees in a anticlockwise manner under the guidance of the guide roller 6 which is positioned in the right auxiliary shielding chamber 19 and fixedly arranged at the outer side of the supporting frame 16, and passes through the right auxiliary shielding chamber 19 from the horizontal outlet 20 to finish irradiation treatment; after the irradiation work is finished, the beam baffle 14 is controlled to swing through the PLC system, so that the beam baffle 14 returns to a position between the scanning window 13 and the absorption target 15, namely, a closing position is realized, radiation caused by rays is blocked, after all the components are cooled, a first circulating pump and a second circulating pump which are respectively connected with the beam baffle 14 and the absorption target 15 are closed, and a fan of the air cooling mechanism 7 is closed.
The self-shielding beam lower device for irradiation of the rubberized curtain fabric has the characteristics and advantages that:
1. according to the invention, two shielding plates (namely a left shielding plate 4 and a right shielding plate 18) are symmetrically arranged on two opposite side walls (namely a left side wall 10 and a right side wall 12) in the shielding body 9, and a supporting frame 16 positioned between the two shielding plates is arranged on the bottom wall 22 of the shielding body 9, so that the shielding body 9 is divided into a main shielding chamber 8 positioned above and a left auxiliary shielding chamber 3 and a right auxiliary shielding chamber 19 positioned below the main shielding chamber 8 and symmetrically arranged through the supporting frame 16 and the two shielding plates, the requirements of shielding performance are met, the ingenious space design is performed, the space in the shielding body 9 is fully utilized, the space in the transmission direction of a product is saved, the occupied area of a shielding system in the transmission direction of the product is shortened to about 1.2m from the existing 2.0 m, the structure is compact, the occupied area and the consumable of the shielding system is greatly reduced.
2. According to the invention, the outer inlet 2 is arranged on the left side wall 10 of the shielding body 9, the outer outlet 20 is arranged on the right side wall 12, the inner inlet 5 and the inner outlet 17 are respectively arranged between the support frame 16 and the left shielding plate 4 and the right shielding plate 18, so that the rubber coated curtain cloth 1 enters the left auxiliary shielding chamber 3 through the outer inlet 2, enters the main shielding chamber 8 through the inner inlet 5, enters the right auxiliary shielding chamber 19 through the inner outlet 17 and passes out of the right auxiliary shielding chamber 19 through the outer outlet 20 under the guidance of the plurality of guide rollers 6, the irradiation of the rubber coated curtain cloth 1 in the main shielding chamber 8 is realized, the occupied area can be reduced, and the material loss and the weight of a shielding system are reduced.
3. According to the invention, the electron accelerator is arranged on the top wall 11 of the shielding body 9, the absorption target 15 is arranged on the supporting frame 16, and the scanning window 13 of the electron accelerator is vertically opposite to the absorption target 15, so that the radiation after the irradiation of the glue coated curtain cloth 1 by the scanning window 13 of the electron accelerator is absorbed by the absorption target 15; meanwhile, a beam baffle 14 is arranged in the main shielding chamber 8, so that when irradiation is not needed, the scanning window 13 accelerated by electrons is isolated from the rubberized curtain cloth 1 through the beam baffle 14; and cooling the outlet of the scanning window 13 of the electron accelerator is realized by arranging the air cooling mechanism 7 in the main shielding chamber 8, and cooling is realized by introducing circulating cooling water into the beam baffle 14 and the absorption target 15.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any person skilled in the art can make some changes or modifications to the equivalent embodiments without departing from the scope of the technical solution of the present invention, but any simple modification, equivalent changes and modifications to the above-mentioned embodiments according to the technical substance of the present invention are still within the scope of the technical solution of the present invention.
Claims (8)
1. The self-shielding beam lower device for the irradiation of the rubberized curtain cloth is characterized by comprising a hollow shielding body, wherein a left shielding plate which is horizontally arranged is arranged on the left side wall in the shielding body in a protruding mode, a right shielding plate which is horizontally arranged is arranged on the right side wall in the shielding body in a protruding mode, a supporting frame which is positioned between the left shielding plate and the right shielding plate is arranged on the bottom wall of the shielding body, the shielding body is divided into a main shielding chamber which is positioned above the shielding body, a left auxiliary shielding chamber and a right auxiliary shielding chamber which are positioned below the main shielding chamber through the left shielding plate, an outer inlet for the rubberized curtain cloth to penetrate into the left auxiliary shielding chamber is arranged on the left side wall, an inner inlet is formed between the supporting frame and the left shielding plate, an inner outlet is formed between the supporting frame and the right shielding plate, the left auxiliary shielding chamber is communicated with the main shielding chamber through the inner inlet, the main shielding chamber is communicated with the inner inlet and the outer inlet through the outer inlet, and the inner outlet is vertical to the outer inlet; the support frame is provided with a plurality of guide rollers for guiding the rubber-covered curtain cloth to sequentially pass through the inner inlet, the inner outlet and the outer outlet, the number of the guide rollers is four, two guide rollers are symmetrically arranged above the support frame, and the other two guide rollers are respectively opposite to the outer inlet and the outer outlet; an absorption target is fixedly arranged on the support frame, an electron accelerator is fixedly arranged on the top wall of the shielding body, the absorption target is vertically opposite to a scanning window of the electron accelerator, and the rubber-covered curtain cloth entering the main shielding chamber to receive irradiation passes through between the absorption target and the scanning window.
2. The self-shielding beam lower device for irradiation of rubber-covered curtain cloth according to claim 1, wherein a beam baffle capable of swinging is arranged in the main shielding chamber, one end of the beam baffle is pivoted with the shielding body, and the other end of the beam baffle can be blocked between the scanning window and the absorption target.
3. The self-shielding beam lower device for irradiation of rubberized fabrics according to claim 2, wherein the beam baffle, the absorption target and the guide roller are all made of stainless steel, circulating cooling water is arranged in the beam baffle and the absorption target, and the diameter of the guide roller is 100-250 mm.
4. The self-shielding beam lower device for irradiation of rubber-covered curtain cloth according to claim 1, wherein an air cooling mechanism is arranged in the main shielding chamber, the air cooling mechanism is positioned at one side of the electron accelerator, and an air outlet of the air cooling mechanism is opposite to an outlet of the scanning window.
5. The self-shielding underbeam device for irradiation of rubberized fabric according to claim 1, wherein the side walls of the shielding body comprise a left side wall, a right side wall, a front side wall and a rear side wall, the top wall and the side walls of the shielding body are formed by stacking four layers of steel plates, and the left shielding plate and the right shielding plate are formed by stacking three layers of steel plates.
6. The self-shielding underbeam device for irradiation of rubberized fabric according to claim 5, wherein the thicknesses of the top wall and the side wall of the shielding body are 150 mm-300 mm, and the thicknesses of the left shielding plate and the right shielding plate are 100 mm-200 mm.
7. The self-shielding underbeam device for irradiation of rubberized fabrics according to claim 1, wherein the width of the outer inlet, the width of the outer outlet, the width of the inner inlet and the width of the inner outlet are all 10 mm-15 mm, and the heights of the outer inlet and the outer outlet from the ground are all 50 mm-70 mm.
8. The self-shielding beam lower device for irradiation of rubberized fabrics according to claim 1, wherein the distance between the rubberized fabrics which are irradiated in the main shielding chamber and the scanning window is 60 mm-100 mm.
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| CN201711429174.XA CN108022666B (en) | 2017-12-26 | 2017-12-26 | Self-shielding beam lower device for irradiation of rubberized curtain cloth |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110446325A (en) * | 2018-07-11 | 2019-11-12 | 中广核达胜加速器技术有限公司 | Cable irradiates self-shielded electron accelerator under a kind of two-beam |
| CN110708854B (en) * | 2019-10-17 | 2022-03-08 | 浙江中烟工业有限责任公司 | An electron curtain accelerator shield structure |
| CN111477376B (en) * | 2020-04-21 | 2025-02-18 | 山西壹泰科电工设备有限公司 | Shielding structure for low energy self-shielding electron accelerator |
| CN111601448B (en) * | 2020-05-25 | 2022-12-13 | 中国原子能科学研究院 | Titanium film cooling system for scanning box of irradiation accelerator |
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