Radiation protection structure and sorting machine

Abstract

The utility model relates to the technical field of mineral separation, in particular to a radiation protection structure and a sorting machine. The radiation protection structure comprises a radiation source, a first protection assembly, a second protection assembly, a third protection assembly and a fourth protection assembly, wherein the radiation source is used for emitting rays; the sensor is used for receiving and analyzing the rays; the first protection assembly is located below the radiation source and limits the scattering angle of the radiation source. The second protection assembly is located on the periphery of the first protection assembly, and a first attenuation space is formed between the first protection assembly and the second protection assembly to attenuate rays; the third protection assembly is located on the periphery of the sensor. A ray channel is formed between the third protection assembly and the first protection assembly. The fourth protection assembly is located on the periphery of the second protection assembly, and a second attenuation space is formed between the fourth protection assembly and the second protection assembly, so that the rays are further attenuated. According to the utility model, double-attenuation space protection is adopted, rays are attenuated and shielded to the greatest extent, and harm to a human body caused by ray leakage is avoided.

Description

Technical Field

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

[0002] Sorting machines generally use radiation to detect whether a stone is ore or waste rock. The radiation has high penetrability and is harmful to the human body and needs to be shielded. In the prior art, a thick lead plate is usually glued on the inside of the sorting machine to shield the radiation. The thick lead plate makes the equipment cumbersome to operate and increases the cost. Another layer of lead plate has poor protection effect and there is a problem of radiation leakage causing harm to the human body. Utility Model Content

[0003] In view of the above problems, the purpose of the present utility model is to provide a radiation protection structure and a sorting machine, aiming to solve the technical problems in the prior art that the sorting machine is bulky and has poor protection effect.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a radiation protection structure on one hand, the radiation protection structure comprising:

[0006] A ray source, the ray source is used to emit rays;

[0007] A sensor, the sensor is used to receive and analyze the radiation;

[0008] A first protection component, the first protection component is located below the radiation source, and the first protection component limits the scattering angle of the radiation source;

[0009] A second protection component, the second protection component is located outside the first protection component, and a first attenuation space is formed between the first protection component and the second protection component to attenuate the radiation;

[0010] a third protection component, the third protection component is located at the periphery of the sensor, and a ray channel is formed between the third protection component and the first protection component;

[0011] The fourth protection component is located outside the second protection component, and a second attenuation space is formed between the fourth protection component and the second protection component to further attenuate the radiation.

[0012] The first protection component includes a first enclosure plate, which is arranged below the radiation source, and the top of the first enclosure plate is in close contact with the radiation source.

[0013] The first protection component also includes an emission port calibration component, which is fixedly connected to the first enclosure plate and controls the ray emission angle.

[0014] The first enclosure is a double-layer structure consisting of an inner lead plate and an outer steel plate.

[0015] The second protective component includes a second enclosure, which is a lead plate. The second enclosure is wrapped around the outer layer of the first protective component, and the thickness of the lead plate in the second enclosure is less than the thickness of the lead plate in the first enclosure.

[0016] The second protection component also includes a third enclosure plate, which is a steel plate. The third enclosure plate is wrapped around the outer periphery of the second enclosure plate. A ray emitting port is opened at the bottom of the third enclosure plate, and an epoxy plate is provided on the ray emitting port.

[0017] The fourth protection component includes a sixth enclosure, which is a double-layer structure consisting of an inner lead plate and an outer steel plate. The sixth enclosure is wrapped around the outer layer of the second protection component, and the thickness of the lead plate in the sixth enclosure is less than the thickness of the lead plate in the first enclosure.

[0018] The third protection component includes a fourth enclosure plate, the sensor is arranged in the fourth enclosure plate, and a receiving port facing the radiation source is opened on the fourth enclosure plate, and the sensor receives the radiation through the receiving port.

[0019] The third protection assembly also includes a fifth enclosure, which is a lead plate and is wrapped around the fourth enclosure.

[0020] Another aspect of the utility model provides a sorting machine, the sorting machine comprises the radiation protection structure as described above, and the sorting machine further comprises:

[0021] A belt transmission assembly is used to transmit materials. When the materials are transmitted by the belt transmission assembly, the materials pass through the radiation irradiation range of the radiation source. The radiation emitted by the radiation source penetrates the materials and is received and analyzed by the sensor.

[0022] The advantages and beneficial effects of the utility model are as follows: the purpose of the utility model is to provide a radiation protection structure and a sorting machine, which uses as few lead plates as possible to achieve the purpose of shielding radiation, thereby reducing the weight of the equipment and making the equipment easy to install and operate, and the utility model adopts double attenuation space protection, so that the radiation passes through two attenuation spaces to attenuate and shield the radiation to the greatest extent, avoiding radiation leakage and causing harm to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of a separator provided with a radiation protection structure according to the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 3 It is a structural schematic diagram of the first protection component in the utility model;

[0027] Figure 4 It is a schematic diagram of the assembly of the first protection component and the third protection component in the utility model.

[0028] In the figure: 10-first protection component, 11-first enclosure, 12-emitter calibration piece, 20-second protection component, 21-second enclosure, 22-third enclosure, 221-ray emission port, 222-epoxy plate, 30-third protection component, 31-fourth enclosure, 32-fifth enclosure, 40-fourth protection component, 41-sixth enclosure, 301-sensor, 101-ray source, 103-first attenuation space, 104-second attenuation space, 201-belt transmission component. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] See also Figures 1 to 4 As shown, an embodiment of the utility model provides a radiation protection structure, which includes a radiation source 101, a sensor 301, a first protection component 10, a second protection component 20, a third protection component 30 and a fourth protection component 40, wherein the radiation source 101 is used to emit radiation; the sensor 301 is used to receive and analyze radiation; the first protection component 10 is located below the radiation source 101, and the first protection component 10 limits the scattering angle of the radiation source 101; the second protection component 20 is located outside the first protection component 10, and a first attenuation space 103 is formed between the first protection component 10 and the second protection component 20 to attenuate the radiation; the third protection component 30 is located outside the sensor 301, and a radiation channel is formed between the third protection component 30 and the first protection component 10, and the radiation channel is a radiation transmission channel connecting the radiation source and the sensor (not shown in the figure); the fourth protection component 40 is located outside the second protection component 20, and a second attenuation space 104 is formed between the fourth protection component 40 and the second protection component 20 to further attenuate the radiation.

[0033] See also Figures 2 to 4 As shown, in an embodiment of the present invention, the first protection assembly 10 includes a first enclosure 11 , which is disposed below the radiation source 101 , and the top of the first enclosure 11 is in close contact with the radiation source 101 .

[0034] Furthermore, the first protection assembly 10 further includes an emission port calibration member 12, which is fixedly connected to the first enclosure 11, and controls the ray emission angle. Since the emission port calibration member 12 is tightly connected to the ray source 101, the downward scattering of the ray is further limited, and the ray angle is constrained, so that the ray reaches the sensor 301 as much as possible according to the ray channel.

[0035] Preferably, the first enclosure 11 is a double-layer structure consisting of an inner lead plate and an outer steel plate. The lead plate in the first enclosure 11 is the thickest among the radiation protection lead plates, because the first enclosure 11 is closely connected to the radiation source 101 as the first line of protection, and the thickened lead plate can effectively prevent the radiation from scattering.

[0036] See also Figure 1 , Figure 2 , Figure 4 As shown, in the embodiment of the utility model, the second shielding assembly 20 includes a second enclosure 21, which is a lead plate. The second enclosure 21 is wrapped around the outer layer of the first shielding assembly 10, and the thickness of the lead plate in the second enclosure 21 is less than the thickness of the lead plate in the first enclosure 11. The function of the second enclosure 21 is to block the scattering of radiation from the first shielding assembly 10.

[0037] Furthermore, the second protection assembly 20 further includes a third enclosure 22, which is a steel plate. The third enclosure 22 is outside the second enclosure 21, and the two are bonded. A ray emission port 221 is opened at the bottom of the third enclosure 22, and an epoxy plate 222 is provided on the ray emission port 221. The epoxy plate 222 seals the third enclosure 22 to prevent dust from entering the ray channel and affecting the ray effect. Figure 4 shown.

[0038] See also Figure 1 , Figure 2 As shown, in an embodiment of the utility model, the fourth protective component 40 includes a sixth enclosure 41, and the sixth enclosure 41 is a double-layer structure consisting of an inner lead plate and an outer steel plate. The sixth enclosure 41 is wrapped around the outer layer of the second protective component 20, and the thickness of the lead plate in the sixth enclosure 41 is less than the thickness of the lead plate in the first enclosure 11.

[0039] See also Figure 2 , Figure 4 As shown, in the embodiment of the utility model, the third protection assembly 30 includes a fourth enclosure 31, and a sensor 301 is arranged in the fourth enclosure 31. The fourth enclosure 31 is a steel plate, which is wrapped around the periphery of the sensor 301 to play a protective and fixing role. The fourth enclosure 31 is provided with a receiving port facing the radiation source 101, and the sensor 301 receives radiation through the receiving port.

[0040] Furthermore, the third protection assembly 30 further includes a fifth enclosure 32, which is wrapped around the fourth enclosure 31. The fifth enclosure 32 is a lead plate, and its thickness is the same as that of the lead plate in the first enclosure 11. The first enclosure 11 and the fifth enclosure 32 are directly exposed to radiation from the radiation source 101, so thicker lead plates are used.

[0041] In this embodiment, the radiation source 101 is used to emit radiation, and the sensor 301 is used to receive the radiation. The identified materials, such as ore and recycled scrap metal, pass between the radiation source 101 and the sensor 301 and are penetrated by the radiation. The radiation penetration rates of useful materials and waste materials are different, and the images formed on the sensor 301 are different, so as to determine whether the passing materials are useful materials or waste materials, and then sort them.

[0042] Because the first protection component 10 is located below the radiation source 101, most of the radiation passes through the material and the belt along the radiation channel downward to the sensor 301, thereby isolating most of the radiation. Furthermore, the second protection component 20 is outside the first protection component 10, and a first attenuation space 103 is formed between the second protection component 20 and the first protection component 10. The radiation scattered from the first protection component 10 is diffusely reflected in the first attenuation space 103, thereby further attenuating. Then, there is a fourth protection component 40 outside the second protection component 20, and a second attenuation space 104 is formed between the fourth protection component 40 and the second protection component 20. After the radiation is shielded and weakened by the first attenuation space 103 formed by the first protection component 10 and the second protection component 20, it is already very weak when it reaches the second attenuation space 104, and is finally shielded to the greatest extent by the fourth protection component 40, thereby minimizing damage to the human body as much as possible.

[0043] In this embodiment, the radiation source 101, the emission port calibration component 12 and the first enclosure 11 are closely connected to form a part of the radiation channel, which confines the radiation within the radiation channel and further shields the radiation brought by the radiation. The radiation channel is a narrow slit, so that the radiation passes through the material and the belt along the radiation channel to reach the sensor 301 for collection and analysis, thereby minimizing the scattering of the radiation in this radiation channel and allowing the radiation to reach the sensor 301 with maximum energy efficiency.

[0044] In summary, the rays are emitted by the ray source 101, and are shielded in the first step by the first protection component 10. The scattered rays are absorbed and reflected by the first attenuation space 103 and the second enclosure 21 in the second protection component 20, and the ray intensity is further reduced. The thickness of the lead plate in the first protection component 10 is greater than the thickness of the lead plate in the second protection group 20. After that, the rays are attenuated by the second protection component 20 and enter the second attenuation space 104. After attenuation in the second attenuation space 104, they enter the fourth protection component 40. The rays are attenuated by the two attenuation spaces and weakened by the three layers of lead plates, thereby preventing the rays from leaking and damaging the human body as much as possible.

[0045] See also Figure 1 As shown, another embodiment of the utility model provides a sorting machine, including the radiation protection structure as in the above embodiment, and the sorting machine also includes a belt transmission component 201, the belt transmission component 201 is used to transmit materials, and the materials pass through the radiation irradiation range of the radiation source 101 when being transmitted by the belt transmission component 201, and the radiation emitted by the radiation source 101 penetrates the materials and is received and analyzed by the sensor 301.

[0046] The utility model can achieve the purpose of shielding radiation with as few lead plates as possible, thereby reducing the weight of the equipment and making the equipment easier to install and operate. The utility model adopts double attenuation space protection, so that the radiation can be attenuated and shielded to the greatest extent through the two attenuation spaces, avoiding radiation leakage from causing harm to the human body.

[0047] The above description is only an implementation method of the utility model and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A radiation protection structure, characterized in that: The radiation protection structure comprises: A ray source, the ray source is used to emit rays; A sensor, the sensor is used to receive and analyze the radiation; A first protection component, the first protection component is located below the radiation source, and the first protection component limits the scattering angle of the radiation source; A second protection component, the second protection component is located outside the first protection component, and a first attenuation space is formed between the first protection component and the second protection component to attenuate the radiation; a third protection component, the third protection component is located at the periphery of the sensor, and a ray channel is formed between the third protection component and the first protection component; The fourth protection component is located outside the second protection component, and a second attenuation space is formed between the fourth protection component and the second protection component to further attenuate the radiation.

2. The radiation protection structure according to claim 1, characterized in that: The first protection component includes a first enclosure plate, which is arranged below the radiation source, and the top of the first enclosure plate is in close contact with the radiation source.

3. The radiation protection structure according to claim 2, characterized in that: The first protection component also includes an emission port calibration component, which is fixedly connected to the first enclosure plate and controls the ray emission angle.

4. The radiation protection structure according to claim 2, characterized in that: The first enclosure is a double-layer structure consisting of an inner lead plate and an outer steel plate.

5. The radiation protection structure according to claim 4, characterized in that: The second protective component includes a second enclosure, which is a lead plate. The second enclosure is wrapped around the outer layer of the first protective component, and the thickness of the lead plate in the second enclosure is less than the thickness of the lead plate in the first enclosure.

6. The radiation protection structure according to claim 5, characterized in that: The second protection component also includes a third enclosure plate, which is a steel plate. The third enclosure plate is wrapped around the outer periphery of the second enclosure plate. A ray emitting port is opened at the bottom of the third enclosure plate, and an epoxy plate is provided on the ray emitting port.

7. The radiation protection structure according to claim 5, characterized in that: The fourth protection component includes a sixth enclosure, which is a double-layer structure consisting of an inner lead plate and an outer steel plate. The sixth enclosure is wrapped around the outer layer of the second protection component, and the thickness of the lead plate in the sixth enclosure is less than the thickness of the lead plate in the first enclosure.

8. The radiation protection structure according to claim 1, characterized in that: The third protection component includes a fourth enclosure plate, the sensor is arranged in the fourth enclosure plate, and a receiving port facing the radiation source is opened on the fourth enclosure plate, and the sensor receives the radiation through the receiving port.

9. The radiation protection structure according to claim 8, characterized in that: The third protection assembly also includes a fifth enclosure, which is a lead plate and is wrapped around the fourth enclosure.

10. A sorting machine, characterized in that: The sorting machine comprises the radiation protection structure according to any one of claims 1 to 9, and the sorting machine further comprises: A belt transmission assembly is used to transmit materials. When the materials are transmitted by the belt transmission assembly, the materials pass through the radiation irradiation range of the radiation source. The radiation emitted by the radiation source penetrates the materials and is received and analyzed by the sensor.

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