Ray protection structure and material sorting equipment

Abstract

The embodiment of the utility model provides a ray protection structure and material sorting equipment wherein the ray protection structure comprises: a box body, the box body comprises an emission window, the box body is arranged adjacent to a ray emission device, rays emitted by the ray emission device pass through the box body, the rays are emitted outwards through the emission window, and the box body is provided with an assembly opening; the first cover body is detachably connected with the box body so as to cover part of the assembly opening; the second cover body is detachably connected with the box body so as to cover part of the assembly opening, and part of the second cover body and part of the first cover body are arranged in a stacked mode; wherein at least the inner side of the box body, at least the inner side of the first cover body and at least the inner side of the second cover body are provided with lead plates. According to the technical scheme of the utility model, the split cover body is adopted, so that the problem of insufficient rigidity can be solved under the condition that the ray protection structure is relatively large in size and self weight, the possibility of deformation is reduced, particularly the possibility of downward collapse of the edge of the upper side of the emission window is reduced, and the service life of the ray protection structure is prolonged. And the accuracy and stability of rays passing through the emission window are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ore sorting equipment, in particular to a radiation protection structure and a material sorting equipment. Background Art

[0002] At present, when sorting ore, ray recognition is usually adopted. In the related technology, the ray outlet position of the transmitter used to emit rays is prone to sinking due to the heavy weight of the top of the shell, causing the shell to deform, thereby affecting the optical path of the ray. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] In view of this, an embodiment of the first aspect of the present utility model provides a radiation protection structure.

[0005] The embodiment of the second aspect of the utility model provides a material sorting device.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the utility model provides a radiation protection structure, including: a box body, the box body including an emission window, the box body is arranged adjacent to a radiation emitting device, the radiation emitted by the radiation emitting device passes through the box body, and the radiation is emitted outwardly through the emission window, and the box body is provided with an assembly opening; a first cover body, detachably connected to the box body to cover part of the assembly opening; a second cover body, detachably connected to the box body to cover part of the assembly opening, part of the second cover body and part of the first cover body are stacked; wherein, at least the inner side of the box body, at least the inner side of the first cover body and at least the inner side of the second cover body are provided with a lead plate.

[0007] According to the radiation protection structure proposed by the utility model, it mainly includes a box body and a split cover body. By adopting the split cover body, when the radiation protection structure itself is large in volume and heavy in weight, the problem of insufficient rigidity can be compensated, the possibility of deformation can be reduced, and in particular, the possibility of the edge of the upper side of the emission window collapsing downward can be reduced, thereby ensuring the accuracy and stability of the radiation passing through the emission window. Specifically, a lead plate will be provided on the inner side of the radiation protection structure to prevent radiation leakage. On this basis, the box body, the first cover body and the second cover body can be defined as adhesive parts of metal plates and lead plates, which can further improve the radiation protection effect.

[0008] By providing an emission window and an assembly opening on the box body, the rays emitted by the ray emitting device placed next to the box body will pass through the emission window of the box body and be emitted toward the ore, thereby realizing the identification of the ore type, and the assembly opening is used for assembly with the cover body. The split cover body includes a first cover body and a second cover body, which are partially stacked. Since the entire cover plate part is divided into two single structures, the weight is dispersed, and the first cover body and the second cover body can be independently detachably connected to the box body. The split design is convenient for maintenance and disassembly, that is, the weight of the cover body carried during disassembly is smaller, which improves the maintenance efficiency. On the other hand, the weight borne at the emission window is reduced, and the stability of the shape and position of the ray outlet can be maintained.

[0009] It can be understood that the ray emitting device is arranged close to the box to shorten the light path and also reduce the possibility of ray deviation to ensure detection accuracy.

[0010] It should be added that after the first cover body and the second cover body are assembled to the opening, when the radiation emitting device is assembled to a position adjacent to the box body, the entire radiation protection structure has only one emission window position connected to the outside, so that the radiation emitted by the radiation emitting device can pass through the box body toward the receiver.

[0011] The detachable connection between the first cover and the box body includes, but is not limited to, bolt connection, snap connection, slide rail connection and other connection methods.

[0012] In some technical solutions, optionally, the box body includes a first outlet plate, the first cover body includes a second outlet plate matched with the first outlet plate, and the first outlet plate and the second outlet plate overlap to form an emission window.

[0013] In this technical solution, the first outlet plate, as a part of the box, can form the initial outlet path of the ray, and the second outlet plate, as a part of the first cover, is adapted to and overlaps with the first outlet plate to further refine and define the emission window of the ray. This design can adjust the size and shape of the ray outlet to meet different usage requirements.

[0014] It can be understood that the overlap of the first outlet plate and the second outlet plate not only forms an emission window, but also enhances the protection of the ray emission area and reduces the risk of ray leakage. This design allows the structural strength of the device and the accuracy of ray emission to be optimized while maintaining safe ray emission.

[0015] Through the interaction between the first outlet plate and the second outlet plate, this design increases the adjustability and applicability of the device while achieving precise ray control, which is particularly important for application scenarios that require precise ray control.

[0016] In some technical solutions, optionally, the first outlet plate has a first curved surface, the second outlet plate has a second curved surface, and the curvature of the first curved surface is the same as the curvature of the second curved surface.

[0017] In this technical solution, the first exit plate and the second exit plate have an arc surface design with the same curvature, indicating that the two parts are highly matched in structure. This design helps to achieve seamless connection between the two plates, thereby ensuring the accuracy and consistency of the ray emission window.

[0018] In addition, the same curvature of the first curved surface and the second curved surface ensures that the shape and size of the exit window can remain consistent when the rays are emitted. The precise design of the first exit plate and the second exit plate effectively controls the emission path of the rays and improves the stability and reliability of the equipment during the ray emission process.

[0019] It can be understood that the curved surface design with the same curvature not only enhances the emission effect of the rays, but also improves the structural integrity and sealing of the equipment, thereby reducing the risk of ray leakage.

[0020] In some technical solutions, optionally, the emission window is a strip-shaped hole extending along the circumference of the first arc surface.

[0021] In this technical solution, by limiting the shape of the emission window to a strip-shaped hole extending circumferentially along the first arc surface, the rays can be emitted along a specific direction, and the direction and range of the rays can be precisely controlled.

[0022] It can be understood that since the emission window is in the shape of a strip hole, it is easy for the middle part to collapse based on its slender structural characteristics, so the present application uses a split cover design to reduce the weight it bears.

[0023] In some technical solutions, optionally, one end of the second cover body close to the emission window overlaps with one end of the first cover body away from the emission window.

[0024] In this technical solution, the overlapping design of the second cover body and the first cover body helps to ensure the structural stability and sealing of the equipment during the radiation emission process, reduces the risk of radiation leakage, and is also conducive to maintenance and inspection.

[0025] Specifically, the second cover body is located farther from the launch window, and the two cover bodies are overlapped to effectively reduce the weight borne by the launch window while ensuring the sealing performance, thereby maintaining the structural rigidity.

[0026] In some technical solutions, optionally, it also includes: at least one rib plate, which is arranged on the first cover body.

[0027] In this technical solution, by arranging one or more ribs on the first cover body, the pressure distribution of the first cover body and the second cover body on the box body can be improved, the load on the side wall where the emission window is located can be reduced, and the degree of collapse of the middle area of ​​the strip hole can be reduced.

[0028] Through the reinforcement design of the rib plate, this structure effectively improves the stability and reliability of the radiation equipment during the radiation emission process, ensuring the long-term stable operation of the equipment.

[0029] Furthermore, a plurality of ribs may be disposed on the first cover in a diffused manner, which may further reduce the load on the side wall where the emission window is located.

[0030] In some technical solutions, optionally, it also includes: a reinforcing beam, which is arranged on the first cover body, the reinforcing beam passes through at least one rib plate, and the reinforcing beam is perpendicular to the axial bisector of the first arc surface.

[0031] In this technical solution, the structural stability and rigidity of the first cover body can be enhanced by the reinforcing beam, and the structure of the device can be further reinforced by penetrating at least one rib plate to ensure the stability and reliability of the device during the radiation emission process.

[0032] It can be understood that through the design of the reinforcing beam, under the joint action of the reinforcing beam and the rib plate, the deformation and vibration of the first cover during the ray emission process can be reduced, ensuring the accurate emission of the rays and the long-term stable operation of the equipment.

[0033] In some technical solutions, optionally, it also includes: a main body side panel, which is connected to the first outlet plate, and the main body side panel and the first outlet plate are arranged along the first direction; wherein the first cover body is detachably connected to the first outlet plate and part of the main body side panel, and the second cover body is detachably connected to part of the main body side panel.

[0034] In this technical solution, the structure of the box is further divided. In addition to the first outlet plate, a main body side plate connected thereto and arranged along the first direction is also provided. In addition, the first cover is detachably connected to the first outlet plate and part of the main body side plate, and the second cover is also detachably connected to part of the main body side plate. The first cover covers the arc-shaped first outlet plate and part of the main body side plate at the same time, and the second cover cooperates with another part of the main body side plate. During maintenance, only the second cover can be removed, and the side wall where the emission window is located is only used to bear the weight of the first cover, thereby ensuring the overall structural rigidity and stability and improving the reliability of product use.

[0035] In some technical solutions, optionally, the first outlet plate is symmetrical about the first plane, and the first direction is parallel to the first plane.

[0036] In this technical solution, the arc-shaped first outlet plate is symmetrical, and the symmetry plane is the first plane. By limiting the arrangement direction of the first outlet plate and the side panel of the main body to be parallel to the first plane, that is, the first direction is parallel to the first plane, the structure of the entire box is relatively regular, which is convenient for processing on the one hand, and makes the emission direction of the rays more precise and controllable on the other hand, and also improves the stability and accuracy of the rays.

[0037] The embodiment of the second aspect of the utility model provides a material sorting device, comprising: a ray emitting device; any ray protection structure in the above-mentioned first aspect; and a receiver for receiving rays emitted by the ray emitting device.

[0038] The material sorting equipment proposed by the utility model includes a ray emitting device, a ray protection structure and a receiver. The ray emitting device is used to emit rays to material samples, especially to ore. The rays pass through the ray protection structure. Under the action of the receiver, the type of the ore can be determined based on the received ray imaging, thereby realizing the sorting of the ore.

[0039] It should be added that, since the material sorting equipment includes the radiation protection structure of any of the above-mentioned schemes, it has the beneficial effects of any of the above-mentioned radiation protection structures, which will not be repeated here.

[0040] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A schematic structural diagram of a radiation protection structure according to an embodiment of the utility model is shown;

[0042] Figure 2 A schematic structural diagram of a radiation protection structure according to an embodiment of the utility model is shown;

[0043] Figure 3 Shows Figure 2 Structural diagram of the AA section;

[0044] Figure 4 A schematic structural diagram of a material sorting device according to an embodiment of the utility model is shown;

[0045] Figure 5 A schematic diagram of the exploded structure of a radiation protection structure according to an embodiment of the utility model is shown.

[0046] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0047] 100: radiation protection structure; 102: box body; 1022: first outlet plate; 1024: body side plate; 1032: emission window; 1033: strip hole; 1034: assembly opening; 104: first cover body; 1042: second outlet plate; 1044: rib plate; 1046: reinforcement beam; 106: second cover body; 1082: first arc surface; 1084: second arc surface;

[0048] 200: material sorting equipment; 202: receiver; 204: ray emitting device. DETAILED DESCRIPTION

[0049] In order to more clearly understand the above-mentioned purposes, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0050] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0051] Refer to the following Figures 1 to 5 Some embodiments according to the present invention are described.

[0052] like Figure 1 and Figure 5 As shown, a radiation protection structure 100 proposed in this embodiment mainly includes a box body 102 and a split cover body (i.e., a first cover body 104 and a second cover body 106). By adopting a split cover body, when the radiation protection structure 100 itself is large in volume and heavy in weight, the problem of insufficient rigidity can be compensated, and the possibility of deformation can be reduced, especially the possibility of the edge of the upper side of the emission window 1032 collapsing downward can be reduced, thereby ensuring the accuracy and stability of the radiation passing through the emission window 1032. Specifically, a lead plate is provided inside the radiation protection structure 100 to prevent radiation leakage. On this basis, the box body 102, the first cover body 104 and the second cover body 106 can be defined as a bonding member of a metal plate and a lead plate, which can further improve the radiation protection effect.

[0053] like Figure 1 and Figure 3As shown, by providing an emission window 1032 and an assembly opening 1034 on the box body 102, the rays emitted by the ray emitting device 204 placed next to the box body 102 will pass through the emission window 1032 and be emitted toward the ore, thereby realizing the identification of the ore category, and the assembly opening 1034 is used for assembly with the cover body. The split cover body includes a first cover body 104 and a second cover body 106, which are partially stacked. Since the entire cover plate part is divided into two single structures, the weight is dispersed, and the first cover body 104 and the second cover body 106 can be independently detachably connected to the box body 102. The split design is convenient for maintenance and disassembly, that is, the weight of the cover body to be carried during disassembly is small, which improves the maintenance efficiency. On the other hand, the weight borne at the emission window 1032 is reduced, and the stability of the shape and position of the ray outlet can be maintained.

[0054] It can be understood that the ray emitting device 204 is disposed close to the box to shorten the light path and also reduce the possibility of ray deviation, thereby ensuring detection accuracy.

[0055] It should be added that after the first cover body 104 and the second cover body 106 cover the assembly opening 1034, when the radiation emitting device 204 is assembled to a position adjacent to the box body 102, the entire radiation protection structure 100 has only one position, the emission window 1032, which is connected to the outside, so that the radiation emitted by the radiation emitting device 204 can pass through the box body 102 toward the receiver 202.

[0056] The detachable connection between the first cover 104 and the box body 102 includes, but is not limited to, bolt connection, snap connection, slide rail connection and other connection methods.

[0057] In some embodiments, the first outlet plate 1022 is optionally used as a part of the box body 102 to form an initial outlet path of the ray, and the second outlet plate 1042 is used as a part of the first cover body 104 to match and overlap with the first outlet plate 1022 to further refine and define the ray emission window 1032. This design can adjust the size and shape of the ray outlet to meet different usage requirements.

[0058] It can be understood that the overlap of the first outlet plate 1022 and the second outlet plate 1042 not only forms the emission window 1032, but also enhances the protection of the radiation emission area and reduces the risk of radiation leakage. This design allows the structural strength of the device and the accuracy of radiation emission to be optimized while maintaining the safe emission of radiation.

[0059] Through the interaction between the first outlet plate 1022 and the second outlet plate 1042, this design increases the adjustability and applicability of the device while achieving precise ray control, which is particularly important for application scenarios that require precise ray control.

[0060] In some embodiments, optionally, the first outlet plate 1022 and the second outlet plate 1042 have an arc surface design with the same curvature, indicating that the two parts are highly matched in structure. This design helps to achieve seamless docking between the two plates, thereby ensuring the accuracy and consistency of the ray emission window 1032.

[0061] In addition, the same curvature of the first curved surface 1082 and the second curved surface 1084 ensures that the shape and size of the exit window can remain consistent when the rays are emitted. The precise design of the first exit plate 1022 and the second exit plate 1042 effectively controls the emission path of the rays, while improving the stability and reliability of the device during the ray emission process.

[0062] It can be understood that the curved surface design with the same curvature not only enhances the emission effect of the rays, but also improves the structural integrity and sealing of the equipment, thereby reducing the risk of ray leakage.

[0063] In some embodiments, the shape of the emission window 1032 is optionally defined as a strip-shaped hole 1033 extending circumferentially along the first arc surface 1082, so that the rays can be emitted along a specific direction and the direction and range of the rays can be precisely controlled.

[0064] It can be understood that since the emission window 1032 is in the shape of a strip hole, it is easy for the middle part to collapse based on its slender structural characteristics, so the present application uses a split cover design to reduce the weight it bears.

[0065] In some embodiments, optionally, the overlapping design of the second cover body 106 and the first cover body 104 helps to ensure the structural stability and sealing of the device during the radiation emission process, reduces the risk of radiation leakage, and is also convenient for maintenance and inspection.

[0066] Specifically, the second cover body 106 is located farther away from the launch window 1032, and the two cover bodies are overlapped to effectively reduce the weight borne by the launch window 1032 while ensuring the sealing performance, thereby maintaining the structural rigidity.

[0067] In some embodiments, optionally, Figure 1 As shown, one or more ribs 1044 are provided on the first cover 104 to improve the pressure distribution of the first cover 104 and the second cover 106 on the box 102, reduce the load on the side wall where the emission window 1032 is located, and reduce the degree of collapse of the middle area of ​​the strip hole 1033.

[0068] Through the reinforcement design of the rib plate 1044, this structure effectively improves the stability and reliability of the radiation equipment during the radiation emission process, ensuring the long-term stable operation of the equipment.

[0069] Furthermore, a plurality of ribs 1044 may be disposed on the first cover 104 in a diffused manner, which may further reduce the load on the side wall where the emission window 1032 is located.

[0070] In some embodiments, optionally, by providing a reinforcing beam 1046, the structural stability and rigidity of the first cover body 104 can be enhanced under the action of the reinforcing beam 1046, and by penetrating at least one rib plate 1044, the structure of the device is further reinforced to ensure the stability and reliability of the device during the radiation emission process.

[0071] It can be understood that through the design of the reinforcing beam 1046, under the joint action of the reinforcing beam 1046 and the rib plate 1044, the deformation and vibration of the first cover body 104 during the ray emission process can be reduced, ensuring the accurate emission of rays and the long-term stable operation of the equipment.

[0072] In some embodiments, the structure of the box body 102 is optionally further divided, and in addition to the first outlet plate 1022, a main body side plate 1024 connected thereto and arranged along the first direction is also provided. In addition, the first cover body 104 is detachably connected to the first outlet plate 1022 and part of the main body side plate 1024, and the second cover body 106 is also detachably connected to part of the main body side plate 1024. The first cover body 104 covers the arc-shaped first outlet plate 1022 and part of the main body side plate 1024 at the same time, and the second cover body 106 cooperates with another part of the main body side plate 1024. During maintenance, only the second cover body can be removed, and the side wall where the emission window 1032 is located is only used to bear the weight of the first cover body 104, thereby ensuring the overall structural rigidity and stability and improving the reliability of product use.

[0073] In some embodiments, optionally, Figure 1 and Figure 2 As shown, the arc-shaped first outlet plate 1022 is symmetrical, and the symmetry plane is the first plane, that is, Figure 2 The plane where the cross section of AA is located limits the arrangement direction of the first outlet plate 1022 and the main body side plate 1024 to be parallel to the first plane, that is, the first direction is parallel to the first plane, so that the structure of the entire box body 102 is more regular, which is convenient for processing on the one hand, and on the other hand makes the emission direction of the ray more precise and controllable, and also improves the stability and accuracy of the ray.

[0074] like Figure 4As shown, the present application proposes another embodiment of a material sorting device 200, including a ray emitting device 204, a ray protection structure 100 and a receiver 202. The ray emitting device 204 is used to emit rays to material samples, especially to ore. The rays pass through the ray protection structure 100. Under the action of the receiver 202, the type of the ore can be determined based on the received ray imaging, thereby realizing the sorting of the ore.

[0075] It should be supplemented that, since the material sorting equipment 200 includes the radiation protection structure 100 of any of the above-mentioned solutions, it has the beneficial effects of any of the above-mentioned radiation protection structures 100, which will not be described in detail here.

[0076] In a specific embodiment, a material sorting machine is proposed, including a ray emitting device 204 with fan-shaped rays, and a ray receiver 202 of a corresponding shape. At the same time, the sorting mechanism is also designed to be an arc shape. Compared with a linear sorting mechanism, the arc-shaped sorting mechanism can be provided with more blowing ports, which can increase the processing volume and increase the equipment output.

[0077] The whole machine structure is arranged as follows. First, the radiation is emitted from the optical machine and has to travel a distance to the receiving surface of the receiver 202. In order to prevent the radiation from radiating during this distance, an arc-shaped radiation protection box (i.e., radiation protection structure 100) is designed. The protection box is designed as a split anti-collapse structure. The protection box is generally composed of the following parts: a box bottom (i.e., box body 102), a box cover 1 (i.e., a first cover body 104), a box cover 2 (i.e., a second cover body 106) and a rib plate combination (i.e., rib plate 1044). In order to prevent radiation, the radiation protection box is made of metal plates and lead plates bonded around it, and a gap (i.e., a transmitting window 1032) is left in the front as a radiation outlet. When the volume of the protection box is large, the overall weight is large, the box wall is thin, and the rigidity is insufficient. The edge of the ray outlet seam will collapse downward in the middle, blocking the radiation in the middle part. To solve this problem, the radiation box is designed to be split, and the top of the radiation box is designed to be a detachable box cover, and it is two box covers that overlap each other. The arc edge of the box cover 1 is bent downward to form a gap of a certain width with the arc edge of the box bottom as the exit of the ray. By welding a plurality of ribs 1044 above the box cover 1, the middle part of the arc edge of the box cover 1 can be prevented from sinking. The upper box cover is divided into the box cover 1 and the box cover 2. When inspecting, only the box cover 2 needs to be opened, which is convenient for inspection and reduces the volume and weight of the disassembled part.

[0078] According to the radiation protection structure and material sorting equipment provided by the utility model, by adopting a split cover body, when the radiation protection structure itself is large in size and heavy in weight, the problem of insufficient rigidity can be compensated, and the possibility of deformation can be reduced, especially the possibility of the upper edge of the emission window collapsing downward, thereby ensuring the accuracy and stability of the radiation passing through the emission window.

[0079] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0080] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0081] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radiation protection structure, characterized in that: include: A box body, the box body comprising an emission window, the box body being arranged adjacent to the ray emitting device, the ray emitted by the ray emitting device passing through the box body, and the ray being emitted outward through the emission window, and the box body being provided with an assembly opening; A first cover body, detachably connected to the box body to cover a portion of the assembly opening; A second cover body is detachably connected to the box body to cover a portion of the assembly opening, and a portion of the second cover body is stacked with a portion of the first cover body; Wherein, at least the inner side of the box body, at least the inner side of the first cover body, and at least the inner side of the second cover body are provided with lead plates.

2. The radiation protection structure according to claim 1, characterized in that: The box body includes a first outlet plate, the first cover body includes a second outlet plate matched with the first outlet plate, and the first outlet plate and the second outlet plate overlap to form the emission window.

3. The radiation protection structure according to claim 2, characterized in that: The first outlet plate has a first arc surface, the second outlet plate has a second arc surface, and the curvature of the first arc surface is the same as the curvature of the second arc surface.

4. The radiation protection structure according to claim 3, characterized in that: The emission window is a strip-shaped hole extending along the circumference of the first arc surface.

5. The radiation protection structure according to claim 1, characterized in that: One end of the second cover body close to the emission window overlaps with one end of the first cover body away from the emission window.

6. The radiation protection structure according to claim 3, characterized in that: Also includes: At least one rib plate is disposed on the first cover body.

7. The radiation protection structure according to claim 6, characterized in that: Also includes: A reinforcing beam is provided on the first cover body, the reinforcing beam penetrates at least one of the rib plates, and the reinforcing beam is perpendicular to the axial bisector of the first arc surface.

8. The radiation protection structure according to claim 2, characterized in that: Also includes: A body side plate connected to the first outlet plate, and the body side plate and the first outlet plate are arranged along a first direction; The first cover body is detachably connected to the first outlet plate and part of the main body side plate, and the second cover body is detachably connected to part of the main body side plate.

9. The radiation protection structure according to claim 8, characterized in that: The first outlet plate is symmetrical about a first plane, and the first direction is parallel to the first plane.

10. A material sorting device, characterized in that: include: A ray emitting device; The radiation protection structure according to any one of claims 1 to 9; A receiver is used to receive the rays emitted by the ray emitting device.

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