Double-layer recognition mechanism, sorting equipment and material recognition and sorting method

Abstract

The invention relates to the technical field of ore separation, in particular to a double-layer recognition mechanism, separation equipment and a material recognition and separation method. The double-layer recognition mechanism comprises a cyclone separation unit, a first blanking channel, a second blanking channel and a recognition unit. A first opening is formed in the top of the rotational flow separation unit, a second opening is formed in the bottom of the rotational flow separation unit, and the rotational flow separation unit rotates or vibrates to enable the first coarse screening material to fall into the first falling channel from the first opening and enable the second coarse screening material to fall into the second falling channel from the second opening; and the identification unit comprises a first identification unit and a second identification unit. Two-stage sorting of the materials can be achieved through the double-layer recognition mechanism, the material sorting efficiency and accuracy are effectively improved, the recognition sorting error of the falling materials is effectively reduced, and the material recognition sorting accuracy is improved. And meanwhile, the structure of the double-layer identification mechanism is more compact, and space is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of ore sorting, and in particular to a double-layer identification mechanism, sorting equipment and a material identification and sorting method. Background Art

[0002] Coal, spodumene, silica and other ores are widely used in current industrial production. However, for ores such as coal, spodumene and silica, they usually contain a large amount of gangue and impurities after mining, and need to be sorted to improve the quality of the ore, reduce transportation costs, and reduce environmental pollution. Ore sorting equipment is widely used under this demand. Under the premise of resource conservation and environmental protection, efficient and clean use of ore resources has become a key issue for the survival and development of relevant enterprises in my country. Realizing green and efficient mining and sorting technology for coal and other ores has become a new requirement for the development of the times. However, the existing ore sorting equipment still has certain technical bottlenecks. For the sorting of ore, the current sorting equipment occupies a large area, and the movement of materials during the sorting process leads to low sorting efficiency and accuracy, which cannot meet the requirements of efficient sorting of ore. Summary of the invention

[0003] To overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides a double-layer identification mechanism, which is applied to a sorting device, including: a cyclone sorting unit, having a first opening on the top and a second opening on the bottom, wherein the cyclone sorting unit rotates to make a first coarse screened material fall from the first opening, and a second coarse screened material fall from the second opening, wherein the weight of the first coarse screened material is less than that of the second coarse screened material; a first material dropping channel, which is annular and arranged on the outer peripheral side of the cyclone sorting unit, for receiving and discharging the first coarse screened material; a second material dropping channel, which is annular and arranged below the cyclone sorting unit, for receiving and discharging the second coarse screened material; an identification unit, including: a first identification unit, which is arranged downstream of the first material dropping channel, for identifying the first coarse screened material falling from the first material dropping channel; a second identification unit, which is arranged downstream of the second material dropping channel, for identifying the second coarse screened material falling from the second material dropping channel.

[0004] In some embodiments, the second identification unit includes: a plurality of second cameras arranged in a ring shape, and configured to capture images of the second coarse-screened material to identify the second coarse-screened material.

[0005] In some embodiments, the focal length of the second camera is determined according to the distance between the second camera and a falling position of the second coarse-screened material.

[0006] In some embodiments, the identification unit includes: a ray light machine for emitting rays to illuminate the first coarse screened material; the first identification unit includes: a ray receiver for receiving the rays emitted by the ray light machine to identify the first coarse screened material.

[0007] In some embodiments, the first identification unit further includes: a plurality of first cameras, arranged in a ring shape and located downstream of the first material dropping channel, for collecting images of the first coarse-screened material to identify the first coarse-screened material.

[0008] In some embodiments, the identification unit further comprises: a light source for emitting light toward the first coarse-screened material and / or the second coarse-screened material.

[0009] In some embodiments, the identification unit further includes: a half-reflecting half-mirror, which is arranged on the light path of the light source, and through the half-reflecting half-mirror, the light is reflected to form a first path, and the light passes through the half-reflecting half-mirror to form a second path; wherein, the light irradiates the first coarse screened material falling from the first drop channel along the first path, and the light irradiates the second coarse screened material falling from the second drop channel along the second path.

[0010] In some embodiments, the second camera is located below the outer peripheral side of the second blanking channel, and the length of the inner wall of the second blanking channel extending downward is greater than the length of the outer wall of the second blanking channel extending downward; or, the second camera is located below the inner peripheral side of the second blanking channel, and the length of the outer wall of the second blanking channel extending downward is greater than the length of the inner wall of the second blanking channel extending downward.

[0011] In some embodiments, the identification unit includes: a ray light machine for emitting rays to irradiate the first coarse-screened material and the second coarse-screened material; the first identification unit includes a first annular receiver for receiving rays emitted by the ray light machine to identify the first coarse-screened material; the second identification unit includes a second annular receiver for receiving rays emitted by the ray light machine to identify the second coarse-screened material.

[0012] In some embodiments, the first material dropping channel includes: a deceleration unit, which is used to reduce the falling speed of the first coarse screened material in the first material dropping channel.

[0013] In some embodiments, a conical slope is provided at the inner dome of the second material dropping channel to disperse the second coarse screened material falling from the second opening to different positions of the second material dropping channel.

[0014] In some embodiments, the cyclone separation unit includes: an internal shell, which is a motion mechanism, equipped with gears and matching bearing seats, and is used to rotate through gear meshing to screen the first coarse screened material and the second coarse screened material; an external shell, which is arranged on the outside of the internal shell and is a fixed part. The external shell is equipped with a motor to drive the internal shell to rotate or vibrate.

[0015] In the second aspect, the present disclosure also provides a sorting device, comprising: a double-layer identification mechanism as described in the first aspect; a sorting mechanism, comprising: a first sorting unit, used to sort the first coarse-screened material according to the identification result of the double-layer identification mechanism; a second sorting unit, used to sort the second coarse-screened material according to the identification result of the double-layer identification mechanism; a material receiving mechanism, used to receive the material that has completed sorting.

[0016] In some embodiments, the first sorting unit includes: a first annular nozzle; the second sorting unit includes: a push plate assembly, or a second annular nozzle.

[0017] In some embodiments, the material receiving mechanism includes: a first receiving unit, which is annular and arranged below the first material dropping channel, for receiving the first coarse screened material that has been sorted, the inner circle of the first receiving unit is used to receive the first material sorted by the first sorting unit, and the outer circle of the first receiving unit is used to receive the second material that has not been sorted by the first sorting unit; a second receiving unit, which is annular and arranged below the second material dropping channel, for receiving the first coarse screened material that has been sorted, the inner circle of the second receiving unit is used to receive the first material that has not been sorted by the second sorting unit, and the outer circle of the second receiving unit is used to receive the second material sorted by the second sorting unit; a first material receiving bin, for receiving the first material collected by the inner circle of the first receiving unit and the inner circle of the second receiving unit; a second material receiving bin, for receiving the second material collected by the outer circle of the first receiving unit and the outer circle of the second receiving unit.

[0018] In some embodiments, the first sorting unit is arranged on the outer peripheral side below the first material drop channel, and the second sorting unit is arranged on the inner peripheral side below the second material drop channel; the first sorting unit is used to sort the first coarse screened material from the outside to the inside, and the height of the inner wall of the inner circle of the first receiving unit is greater than the height of the outer wall of the outer circle of the first receiving unit; the second sorting unit is used to sort the second coarse screened material from the inside to the outside, and the height of the outer wall of the outer circle of the second receiving unit is greater than the height of the inner wall of the inner circle of the second receiving unit.

[0019] In the third aspect, the present disclosure also provides a material identification and sorting method, which is applied to the double-layer identification mechanism as described in the first aspect, and the material identification and sorting method includes: screening the material into the first coarse-screened material and the second coarse-screened material through the cyclone sorting unit; identifying the first coarse-screened material and the second coarse-screened material respectively through the identification unit, and determining the categories of the first coarse-screened material and the second coarse-screened material.

[0020] In some embodiments, the radiation receiver includes: a first annular receiver, the outer peripheral side of which is a first receiving end, for receiving radiation emitted by the radiation optical machine to detect the first coarse screened material;

[0021] In some embodiments, the material identification and sorting method further includes: determining a rotation speed or a vibration frequency of the cyclone separation unit according to the quantity and / or size of the first coarse-screened material and the second coarse-screened material.

[0022] In some embodiments, the rotational speed or vibration frequency of the cyclone separation unit is determined based on the quantity and size of the first coarse-screened material and the second coarse-screened material, including: if the quantity of the first coarse-screened material is greater than a first quantity threshold, and / or the size of the first coarse-screened material is greater than a first size threshold, then the rotational speed or vibration frequency of the cyclone separation unit is reduced; and / or if the quantity of the second coarse-screened material is greater than a second quantity threshold, and / or the size of the second coarse-screened material is greater than a second size threshold, then the rotational speed or vibration frequency of the cyclone separation unit is increased.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0024] Through the double-layer identification mechanism provided in this embodiment, the material can be screened according to weight through the cyclone sorting unit to achieve the first-level screening, and the material can be screened into a first coarse-screened material with a smaller weight and a second coarse-screened material with a larger weight, and then they are respectively identified by the identification unit to improve the efficiency of sorting. At the same time, the categories of the first coarse-screened material and the second coarse-screened material are determined for subsequent sorting, which can achieve secondary sorting of the material, and effectively improve the efficiency and accuracy of material sorting. By setting the first drop channel and the second drop channel, the material is prevented from scattering during the falling process, and the drop trajectory is effectively restricted, so that the identification and sorting error of the falling material is reduced, and the accuracy of material identification and sorting is effectively improved. Through the circular drop structure of the double-layer identification mechanism, and the integration of the cyclone sorting unit and the identification unit, the structure of the double-layer identification mechanism can be made more compact, the floor space can be reduced, and space can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention may be better understood by describing exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a schematic diagram of a double-layer identification mechanism structure according to an exemplary embodiment of the disclosure;

[0027] Figure 2 It is a schematic diagram of the structure of a cyclone separation unit according to an exemplary embodiment of the disclosure;

[0028] Figure 3 is a schematic diagram of the structure of a ray identification mechanism according to an exemplary embodiment of the disclosure;

[0029] Figure 4 is a schematic diagram of a double-layer identification mechanism structure according to another exemplary embodiment of the present disclosure;

[0030] Figure 5 is a schematic top view of a ray identification mechanism according to an exemplary embodiment of the disclosure;

[0031] Figure 6 is a schematic top view of a ray identification mechanism according to another exemplary embodiment of the present disclosure;

[0032] Figure 7 is a schematic structural diagram of a sorting device according to another exemplary embodiment of the present disclosure;

[0033] Figure 8 is a schematic structural diagram of a sorting mechanism and a material receiving mechanism according to another exemplary embodiment of the present disclosure;

[0034] Fig. 9 is a schematic diagram of a double-layer identification mechanism structure according to another exemplary embodiment of the present disclosure;

[0035] Fig.10 is a schematic diagram of a double-layer identification mechanism structure according to another exemplary embodiment of the present disclosure;

[0036] Fig.11 is a flow chart of a material identification and sorting method according to another exemplary embodiment of the present disclosure;

[0037] Fig.12 is a flow chart of a material identification and sorting method according to another exemplary embodiment of the present disclosure;

[0038] Fig.13 is a flow chart of a material identification and sorting method according to another exemplary embodiment of the present disclosure;

[0039] Fig.14 is a flow chart of a material identification and sorting method according to another exemplary embodiment of the present disclosure;

[0040] Fig.15 It is a flow chart of a material identification and sorting method according to another exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] The specific embodiments of the present invention will be described below. It should be noted that in the specific description of these embodiments, in order to provide a concise description, it is impossible for this specification to provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present invention, some changes such as design, manufacturing or production based on the technical content disclosed in this disclosure are just conventional technical means, and should not be understood as insufficient content of this disclosure.

[0042] Unless otherwise defined, the technical or scientific terms used in the claims and the specification shall have the usual meaning understood by persons with ordinary skills in the technical field to which the invention belongs. The words "first", "second" and similar words used in the patent application specification and the claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. "Include" or "comprises" and other similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalent elements, and do not exclude other elements or objects. "Connected" or "connected" and other similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0043] In some current technologies, the sorting equipment includes: a feeding mechanism, an identification mechanism, a separation mechanism and a receiving mechanism. Among them, the feeding mechanism is used to convey materials to the identification mechanism through structures such as conveyor belts, the identification mechanism is used to identify the type of materials, and the separation mechanism can perform separation and sorting operations according to the type of materials, so that different types of materials are separated from each other, and finally receive different types of materials through the receiving mechanism, thereby completing the sorting of materials. Specifically, the material can be a mixture of coal and gangue ores, so the coal and gangue can be separated by the sorting equipment, thereby realizing the sorting of the ore and extracting the coal from the ore. However, due to the current sorting equipment, for its identification, separation and receiving operations, each independent device needs to be set up to achieve it. The sorting equipment integrated by multiple devices occupies a large area and has poor integration, which makes the sorting equipment difficult to install and assemble in the mine. At present, some sorting equipment adopts a circular self-falling structure, which enables the corresponding equipment for feeding, identification and separation operations to be set up relatively compactly. However, due to the circular self-falling structure, the falling material movement trajectory is not completely free fall, and the material scatters during the falling process, which will cause the range of the falling material movement trajectory to be larger, resulting in a larger sorting error of the sorting equipment. In addition, since the current sorting equipment adopts a primary sorting system, its sorting efficiency is low, making it difficult to achieve the goal of green and efficient coal sorting.

[0044] To solve the above technical problems, Figure 1 As shown, the present disclosure provides a double-layer identification mechanism, which is applied to a sorting device, and includes: a cyclone sorting unit 110 , a first material drop channel 120 , a second material drop channel 130 and an identification unit 140 .

[0045] like Figure 1 , Figure 2As shown, the cyclone separation unit 110 has a first opening 111 on the top and a second opening 112 on the bottom. The cyclone separation unit 110 rotates to make the first coarse screened material with a smaller weight fall from the first opening 111, and makes the second coarse screened material with a larger weight fall from the second opening 112. The cyclone separation unit 110 can be a cyclone separator, which can separate the material with a smaller weight from the material with a larger weight through its own rotation, and output them from different outlets of the cyclone separator respectively, so as to preliminarily screen the materials according to their weight. The cyclone separation unit 110 can have a first opening 111 on the top and a second opening 112 on the bottom, so as to make materials of different weights fall from different positions respectively, so as to achieve coarse screening of materials by weight. The cyclone separation unit 110 can include a motor, an external shell 113 fixed to a bracket, and an internal shell 114 driven to rotate by a motor. The inner shell 114 and the outer shell 113 can both be truncated cone-shaped shells, wherein the inner shell 114 and the outer shell 113 have a first opening 111 at the top and a second opening 112 at the bottom, and a protrusion can be provided at the edge of the second opening 112 at the bottom of the outer shell 113 to facilitate the assembly of the bearing. The motor can be provided between the outer shell 113 and the inner shell 114 to provide power for the rotation of the inner shell 114. The material can enter the cyclone separation unit 110 from the edge of the first opening 111. When the cyclone separation unit 110 is working, the outer shell 113 remains stationary, and the inner shell 114 is driven by the motor to rotate. Under the rotation of the inner shell 114, the first coarse screened material with a smaller weight will climb along the inner wall of the inner shell 114 as the inner shell 114 rotates, and finally, under the action of centrifugal force, the first coarse screened material flies out from the first opening 111 and enters the first drop channel 120, and falls along the first drop channel 120. During the rotation of the inner shell 114, the second coarse screened materials with a larger weight will accumulate at the bottom of the inner shell 114 and collide with each other, and finally the second coarse screened materials will fall from the second opening 112 opened at the bottom of the inner shell 114, enter the second material drop channel 130, and fall along the second material drop channel 130. Through the rotation of the cyclone separation unit 110, the materials can be screened into the first coarse screened materials with a smaller weight and the second coarse screened materials with a larger weight according to their weight. Through the centrifugal force of the rotation of the cyclone separation unit 110, different materials can be separated according to their weight to achieve coarse screening of the materials, and the materials can be divided into two paths and fall from different channels, so that the two paths of materials can be subsequently identified and sorted at the same time for the second time, thereby improving the sorting efficiency.

[0046] The first blanking channel 120 is annular and is arranged on the outer peripheral side of the cyclone separation unit 110 to receive the first coarse screened material. The first blanking channel 120 can be annular as a whole, and the first blanking channel 120 can be arranged on the outer peripheral side of the cyclone separation unit 110. The inner ring diameter of the first blanking channel 120 is larger than the diameter of the cyclone separation unit 110. The cyclone separation unit 110 can be arranged concentrically with the first blanking channel 120. The first blanking channel 120 can be arranged vertically, and the top can be used to receive the first coarse screened material flying out of the first opening 111. The top of the side wall of the first blanking channel 120 close to the cyclone separation unit 110 can be inclined toward the cyclone separation unit 110 to facilitate receiving the first coarse screened material and prevent the first coarse screened material from falling through the gap between the first blanking channel 120 and the cyclone separation unit 110. The two side walls of the first material dropping channel 120 may be flexible rubber curtains to prevent the first coarse screened material from being damaged by collision with the side walls of the first material dropping channel 120 and to drive the first coarse screened material to fall in a free fall state.

[0047] The second material drop channel 130 is annular and is disposed below the cyclone separation unit 110 to receive the second coarse screened material. The second material drop channel 130 may be annular and disposed below the cyclone separation unit 110, and is coaxially disposed with the cyclone separation unit 110. The top of the second material drop channel 130 may be used to receive the second coarse screened material falling from the second opening 112. The outer ring diameter of the second material drop channel 130 may be larger than the diameter of the cyclone separation unit 110, so that all the second coarse screened materials can enter the second material drop channel 130. The top of the outer side wall of the second material drop channel 130 may extend outward in a funnel shape to receive all the second coarse screened materials and prevent the second coarse screened materials from falling outside the second material drop channel 130. The two side walls of the second material drop channel 130 may also be flexible rubber curtains to avoid damage caused by the second coarse screened material colliding with the side walls of the second material drop channel 130, and to drive the second coarse screened material to fall in a free fall state.

[0048] The recognition unit 140 may include a first recognition unit and a second recognition unit.

[0049] The first identification unit is arranged downstream of the first material drop channel 120, and is used to identify the first coarse screened material falling from the first material drop channel 120. Since the first material drop channel 120 can be annular, and the material falls along the first material drop channel 120, the first identification unit can be annular, so that the first identification unit can identify the first coarse screened material falling along the annular first material drop channel 120, effectively avoiding omissions in the identification process. The first identification unit can be arranged downstream of the first material drop channel 120, and the first identification unit can be arranged below the outer peripheral side of the first material drop channel 120. The material falls along the first material drop channel 120 and passes through the inner side of the first identification unit, so that the first identification unit can identify the first coarse screened material falling through its inner side from the outside to the inside. The first identification unit can also be arranged below the inner peripheral side of the first material drop channel 120. The material falls along the first material drop channel 120 and passes through the outside of the first identification unit, so that the first identification unit can identify the first coarse screened material falling through its outer side from the inside to the outside.

[0050] The second identification unit is arranged downstream of the second material drop channel 130, and is used to identify the second coarse screened material dropped from the second material drop channel 130. Since the second material drop channel 130 can be annular, and the material drops along the second material drop channel 130, the second identification unit can be annular, so that the second identification unit can identify the second coarse screened material dropped along the annular second material drop channel 130, and effectively avoid omissions in the identification process. The second identification unit can be arranged downstream of the second material drop channel 130, and the second identification unit can be arranged below the outer peripheral side of the second material drop channel 130. The material drops along the second material drop channel 130 and passes through the inner side of the second identification unit, so that the second identification unit can identify the second coarse screened material dropped through the inner side from the outside to the inside. The second identification unit can also be arranged below the inner peripheral side of the second material drop channel 130. The material drops along the second material drop channel 130 and passes through the outside of the second identification unit, so that the second identification unit can identify the second coarse screened material dropped through the outer side from the inside to the outside. Through the double-layer identification mechanism provided by the present invention, the material is first coarsely screened by weight through the cyclone sorting unit 110, so that the first coarsely screened material and the second coarsely screened material can enter independent material drop channels respectively to achieve primary sorting. Among them, the first coarsely screened material is lighter in weight, while the second coarsely screened material is heavier in weight. By screening the materials according to weight through the cyclone sorting unit 110, materials of different weights can be first classified, so that in the subsequent identification and sorting operations, different identification and sorting methods can be adopted according to different weight ranges to improve the adaptability and accuracy of material sorting. And the first coarsely screened material and the second coarsely screened material are secondary identified by the identification unit 140, so that secondary sorting can be achieved, which effectively improves the efficiency and accuracy of sorting and reduces sorting errors. The material is initially separated by the cyclone separation unit 110, so that the first coarse screen material and the second coarse screen material can fall along the first independent material drop channel 120 and the second material drop channel 130, and the first coarse screen material is identified by the first identification unit of the identification unit 140, and the second coarse screen material is identified by the second identification unit, and their categories are determined respectively. The efficiency of material sorting can be effectively improved by the cyclone separation unit 110. It is possible to realize parallel identification and sorting of multiple groups of materials, and more materials can be identified in the same time, which can effectively improve the efficiency of material sorting and achieve the goal of efficient sorting. The double-layer identification mechanism provided by the present disclosure has a higher degree of integration through the combination of the cyclone separation unit 110 and the identification unit 140. Through the circular drop structure, the structure of the double-layer identification mechanism is more compact, the floor space is reduced, and it is easy to install and assemble in the mining area, which can effectively improve the adaptability of the sorting equipment.In addition, by setting the first drop channel 120 and the second drop channel 130, the trajectory of the material falling can be effectively limited, so that the material falling trajectory is closer to a free fall, and the material falling trajectory is more concentrated, so that the subsequent sorting mechanism 210 of the sorting equipment can sort the material, and can effectively avoid the material scattering during the falling process and causing subsequent sorting errors. The double-layer recognition mechanism provided by this embodiment can effectively reduce the sorting error and improve the accuracy of sorting. Through the recognition unit 140 of this embodiment, through the annular layout of the first recognition unit and the second recognition unit, the radiation irradiation can be made more uniform, and the stability and accuracy of material detection and sorting are improved. The double-layer recognition mechanism provided by this embodiment can significantly improve the accuracy and efficiency of material sorting, while optimizing the equipment layout, reducing the occupied space, and making the material sorting process, especially in the field of ore sorting such as coal gangue sorting, more green and efficient.

[0051] In some embodiments, Fig. 9As shown, the second identification unit may include: a plurality of second cameras 1452, which are arranged in a ring shape, and are used to collect images of the second coarse screened material to identify the second coarse screened material. The second camera 1452 may be a color sorting camera, which can identify the second coarse screened material through the color sorting image of the second coarse screened material captured by it, so as to determine the category of the second coarse screened material. The second identification unit may include a plurality of second cameras 1452, and the second cameras 1452 may be arranged in a ring shape below the inner circumference of the second blanking channel 130, so that the second cameras 1452 collect the second coarse screened material passing through the outer side thereof from the inside to the outside. Through this arrangement, space can be effectively saved, the structure of the double-layer identification mechanism can be made more compact, and the floor space can be reduced. The second camera 1452 may also be arranged in a ring shape below the outer circumference of the second blanking channel 130, so as to shoot the second coarse screened material passing through the inner side thereof from the outside to the inside. Through this arrangement, the second camera 1452 can only capture the second coarse screened material, so that the second camera 1452 cannot capture the first coarse screened material falling from the outer peripheral side of the second camera 1452, thereby reducing the influence of the first coarse screened material on the recognition result of the second camera 1452, and improving the accuracy of the second camera 1452 in recognizing the second coarse screened material. According to the double-layer recognition mechanism provided by this embodiment, the second coarse screened material can be accurately recognized through multiple second cameras 1452. Through the multiple second cameras 1452 arranged in an annular shape, it can fully obtain the image information of all the second coarse screened materials falling from the second material drop channel 130 from multiple angles, improve the ability to capture material features, and thus improve the accuracy of material recognition. In the case where the second camera 1452 is arranged below the inner peripheral side of the second material drop channel 130, its shooting method from the inside to the outside can effectively reduce the volume of the equipment, make the structure of the entire double-layer recognition mechanism more compact, improve space utilization, reduce the volume of the double-layer recognition mechanism, thereby further reducing the volume of the material sorting equipment, and can effectively save space. If the second camera 1452 is disposed below the outer peripheral side of the second material dropping channel 130, the shooting from the outside to the inside can avoid shooting the first coarse screened material, which can effectively reduce interference, thereby improving the recognition accuracy of the second camera 1452 for the second coarse screened material, thereby improving the sorting accuracy and efficiency of the double-layer recognition mechanism.

[0052] In some embodiments, the focal length of the second camera 1452 is determined according to the distance between the second camera 1452 and the falling position of the second coarse screened material. In the case where the second camera 1452 is arranged in a ring shape below the outer peripheral side of the second material drop channel 130, since the second material drop channel 130 is annular, a plurality of second cameras 1452 are arranged in a corresponding ring shape, and each second camera 1452 identifies the second coarse screened material falling in the corresponding area inside it. When the second camera 1452 collects the image of the second coarse screened material falling through the inside thereof, the collected image may contain another part of the second coarse screened material on the opposite side, resulting in a large number of second coarse screened materials in the image collected by the second camera 1452, affecting the recognition efficiency. Therefore, the focal length of the second camera 1452 can be determined according to the distance between the second camera 1452 and the second coarse screened material to be photographed, so that the focus of the second camera 1452 falls on the falling second coarse screened material, so that the second camera 1452 can photograph the corresponding second coarse screened material more clearly, and improve the second camera 1452 to recognize the second coarse screened material accurately. The image of the other part of the second coarse screened material falling from the opposite side captured by the second camera 1452 is relatively blurred, so that the second camera 1452 can not identify this part of the second coarse screened material, reduce its influence, thereby saving computing power and improving the recognition efficiency and accuracy of the second camera 1452 for the second coarse screened material. In the case where the second camera 1452 is arranged in a ring shape below the inner circumference of the second blanking channel 130. When the second camera 1452 collects the image of the second coarse screened material falling through the outside thereof, the first coarse screened material falling from the first blanking channel 120 located on the outer circumference of the cyclone separation unit can also pass through the outside of the second camera 1452, resulting in the image captured by the second camera 1452 also containing part of the first coarse screened material, affecting the recognition efficiency and accuracy. Therefore, the focal length of the second camera 1452 can be determined according to the distance between the second camera 1452 and the second coarse screened material it needs to shoot, so that the second camera 1452 can shoot the corresponding second coarse screened material more clearly, and improve the recognition accuracy of the second camera 1452 for the second coarse screened material. As for the first coarse screened material captured by the second camera 1452, the first coarse screened material in the image captured by the second camera 1452 is relatively blurred due to the distance from the second camera 1452. Therefore, in the process of identifying the material in the image captured by the second camera 1452 and determining its classification, the blurred first coarse screened material is not identified, and only the second coarse screened material in the image is identified and its classification is determined, thereby improving the recognition efficiency of the second coarse screened material by the second camera 1452. At the same time, the focal length of the second camera 1452 is adjusted to make the image of the second coarse screened material captured by the second camera 1452 clearer, and the features of the second coarse screened material in the image are more obvious, which can effectively improve the recognition accuracy of the second coarse screened material, thereby improving the sorting accuracy of the second coarse screened material in the subsequent sorting of the second coarse screened material by the sorting equipment.

[0053] In some embodiments, the identification unit 140 includes: a ray machine 141, which is used to emit rays to irradiate the first coarse screened material. The ray machine 141 is used to emit rays. The ray machine 141 can be arranged below the periphery of the first material drop channel 120. A ray machine 141 can be arranged so that the ray emission direction of the ray machine 141 is toward the bottom of the first material drop channel 120 and the second material drop channel 130, so that the range covered by the ray emitted by the ray machine 141 can include a partial falling trajectory of the first coarse screened material, so as to facilitate the identification of the first coarse screened material by the identification unit 140.

[0054] The first identification unit includes: a ray receiver 142, which is used to receive the rays emitted by the ray optical machine to identify the first coarse screened material. The ray receiver 142 is used to receive the rays emitted by the ray optical machine 141 to detect the first coarse screened material falling from the first drop channel 120. The ray receiver 142 can be used to receive the rays so as to determine the category of the first coarse screened material swept by the rays according to the acquired ray information. The ray receiver 142 can be annular so as to determine the category of the first coarse screened material falling from its periphery according to the received ray information. According to the double-layer identification mechanism provided in this embodiment, the ray optical machine can emit rays to irradiate the first coarse screened material, and the rays can be received by the ray receiver to accurately obtain its ray imaging information, so that the ray receiver can obtain a more complete and clear ray image, thereby having a higher recognition accuracy.

[0055] In some embodiments, Fig.10 As shown, the first recognition unit may further include: a plurality of first cameras 1451, which are arranged in a ring shape and are located downstream of the first material drop channel 120, and are used to collect images of the first coarse screened material to identify the first coarse screened material. The first camera 1451 may be a color sorting camera, which can identify the first coarse screened material through the color sorting image of the first coarse screened material captured by it, so as to determine the category of the first coarse screened material. The first recognition unit may include a plurality of first cameras 1451, and the first camera 1451 may also be arranged in a ring shape below the outer peripheral side of the first material drop channel 120, so as to capture the first coarse screened material passing through its inner side from the outside to the inside. The first camera 1451 may be arranged in a ring shape below the inner peripheral side of the first material drop channel 120, so that the first camera 1451 captures the first coarse screened material passing through its outer side from the inside to the outside. Through this arrangement, space can be effectively saved, the structure of the double-layer recognition mechanism can be made more compact, and the floor space can be reduced. In addition, since the second coarse-screened material falls from the inside of the first camera 1451, through this setting, the first camera 1451 can only capture the image of the first coarse-screened material without being affected by the second coarse-screened material, which can effectively improve the accuracy of the first camera 1451 in identifying the first coarse-screened material.

[0056] In some embodiments, Fig. 9 , Fig.10As shown, the identification unit 140 further includes: a light source 146, which is used to emit light toward the first coarse screened material and / or the second coarse screened material. In the case where the second identification unit includes a plurality of second cameras 1452, the second identification unit realizes the identification of the second coarse screened material by collecting the color sorting image corresponding to the second coarse screened material. In the process of collecting and identifying the image of the second coarse screened material by the second camera 1452, due to the dim light, the image of the second coarse screened material collected by the second camera 1452 may be unclear or the features are not obvious. Therefore, the light source 146 can be set to emit light toward the second coarse screened material falling from the second material dropping channel 130, so as to illuminate the second coarse screened material and realize the illumination of the shooting target of the second camera 1452. The image of the second coarse screened material captured by the second camera 1452 is clearer, and the features collected in the image are more obvious, so that the recognition accuracy of the second camera 1452 for the second coarse screened material can be improved. In addition, in some embodiments, the first recognition unit includes a plurality of first cameras 1451, and another light source 146 may be arranged toward the first coarse screened material falling from the first material drop channel 120, so that the light source 146 emits light toward the first coarse screened material falling from the first material drop channel 120, thereby illuminating the first coarse screened material and realizing the illumination of the shooting target of the first camera 1451. The image of the first coarse screened material captured by the first camera 1451 is clearer, and the features collected in the image are more obvious, thereby improving the recognition accuracy of the second coarse screened material by the first camera 1451. In addition, the first recognition unit includes the first camera 1451, and the second recognition unit includes the second camera 1452, so that the first recognition unit and the second recognition unit respectively recognize and determine the category of the first coarse screened material by collecting the color sorting image of the first coarse screened material, and recognize and determine the category of the second coarse screened material by collecting the color sorting image of the second coarse screened material. In this case, a group of light sources 146 may also be arranged below the outer peripheral side of the first material drop channel 120 to realize the illumination of the first coarse screened material and the second coarse screened material from the outside to the inside. A group of light sources 146 may also be provided, and by providing optical elements such as lenses and reflectors, the light path of the light emitted by the light source 146 may be adjusted through the reflection of light, so as to realize the illumination of the first coarse screened material and the second coarse screened material. The double-layer recognition mechanism provided in this embodiment can realize the illumination of the second coarse screened material photographed by the second camera 1452 by providing the light source 146, so that the second camera 1452 can obtain a clearer color sorting image, enhance the contrast of features such as color and texture, and improve the recognition accuracy. In addition, by providing the light source 146, the influence of changes in the external ambient light on the material recognition can be reduced, and the recognition system can be ensured to operate stably under different working conditions. By optimizing the arrangement of the light source 146, the illumination can evenly cover the blanking area, avoid the recognition deviation caused by insufficient or overexposure of local illumination, and improve the accuracy of material recognition and classification.A light source 146 is respectively set corresponding to the first recognition unit and the second recognition unit, or the first recognition unit and the second recognition unit are illuminated respectively through a group of units, so that the first camera 1451 and the second camera 1452 can independently obtain better imaging effects of their respective first coarse-screened materials and second coarse-screened materials, avoid mutual interference, and improve imaging quality and recognition accuracy.

[0057] In some embodiments, Fig.10 As shown, the identification unit 140 also includes: a half-reflecting half-mirror 147, which is arranged on the optical path of the light source 146, and the light is reflected by the half-reflecting half-mirror 147 to form a first path, and the light passes through the half-reflecting half-mirror 147 to form a second path; wherein the light irradiates the first coarse screened material falling from the first material drop channel 120 along the first path, and the light irradiates the second coarse screened material falling from the second material drop channel 130 along the second path. The surface of the half-reflecting half-mirror 147 may be coated with a partially reflective and partially transmissive coating layer, so that when the light irradiates the half-reflecting half-mirror 147, part of the light can be transmitted through the half-reflecting half-mirror 147 and continue to irradiate along the original optical path, while the other part of the light can be reflected by the half-reflecting half-mirror 147, so that the light path is changed. Fig.10As shown, the light source 146 can be arranged below the inner circumference of the first blanking channel 120, and multiple light sources 146 can be arranged in a ring shape to emit light toward the second blanking channel 130. The half-reflecting half-mirror 147 can be arranged obliquely and located below the outer circumference of the second blanking channel 130, so that the half-reflecting half-mirror 147 can be located on the light path of the light emitted by the light source 146. The light emitted by the light source 146 is irradiated on the half-reflecting half-mirror 147, and part of the light can be reflected by the half-reflecting half-mirror 147, so that the emitted light can irradiate the first coarse screen material falling from the bottom of the first blanking channel 120. For this light path, it can be determined as the first path. The first camera 1451 located below the inner circumference of the first blanking channel 120 allows the light to irradiate the first coarse screen material along the first path during the process of shooting the image of the first coarse screen material from the inside to the outside, so that the image of the first coarse screen material captured by the first camera 1451 is clearer and the features are more obvious, thereby improving the accuracy of identifying and sorting the first coarse screen material. The light emitted by the light source 146 is irradiated onto the half-reflecting half-mirror 147, and part of the light can be transmitted through the half-reflecting half-mirror 147, so that the emitted light can install the original light path to irradiate the second coarse screen material falling from the bottom of the second material drop channel 130. For this light path, it can be determined as the second path. The second camera 1452 located below the outer peripheral side of the second material drop channel 130 allows the light to irradiate the second coarse screen material along the second path during the process of shooting the image of the second coarse screen material from the outside to the inside, so that the image of the second coarse screen material captured by the second camera 1452 is clearer and the features are more obvious, thereby improving the accuracy of the recognition and sorting of the second coarse screen material. Through the half-reflecting half-mirror 147 provided in this embodiment, the first coarse screen material and the second coarse screen material can be illuminated at the same time through a group of light sources 146, thereby improving the recognition accuracy of the materials. At the same time, the number of light sources 146 required for lighting can be reduced, thereby reducing energy consumption, and at the same time, the space occupied by the light source 146 can be reduced, thereby improving the space utilization rate of the double-layer recognition mechanism.

[0058] In some embodiments, the second camera 1452 is located below the outer circumference of the second material drop channel 130, and the length of the inner wall of the second material drop channel 130 extending downward is greater than the length of the outer wall of the second material drop channel 130 extending downward; or, the second camera 1452 is located below the inner circumference of the second material drop channel 130, and the length of the outer wall of the second material drop channel 130 extending downward is greater than the length of the inner wall of the second material drop channel 130 extending downward. Since the second camera 1452 of the second recognition unit can be arranged below the outer circumference of the second material drop channel 130, it is possible to capture the image of the second coarse screened material from the outside to the inside. In this case, when the second camera 1452 captures the image of the second coarse screened material falling through its inner side, the captured image may contain another part of the second coarse screened material on the opposite side, resulting in a large number of second coarse screened materials in the image captured by the second camera 1452, affecting the recognition efficiency. Therefore, the downward extension length of the inner wall of the second material drop channel 130 can be made greater than the downward extension length of the outer wall of the second material drop channel 130, and the inner wall of the second material drop channel 130 can be extended downward to the lowermost end of the image acquisition range of the second camera 1452. In this way, when the second camera 1452 is shooting the second coarse-screened material falling through its inner side, the inner wall of the second material drop channel 130 can effectively prevent the second camera 1452 from capturing another part of the second coarse-screened material on the opposite side, thereby reducing its impact, saving computing power, and improving the recognition efficiency and accuracy of the second camera 1452 for the second coarse-screened material.

[0059] Since the second camera 1452 of the second recognition unit can be arranged below the inner circumference of the second material drop channel 130, the image of the second coarse screened material can be captured from the inside to the outside. In this case, when the second camera 1452 captures the image of the second coarse screened material falling from the outside, the captured image may contain the first coarse screened material falling from the outside, resulting in a large number of materials in the image captured by the second camera 1452, and including the first coarse screened material that does not need to be recognized by the second camera 1452, which affects the recognition efficiency. Therefore, the length of the outer wall of the second material drop channel 130 extending downward can be made greater than the length of the inner wall of the second material drop channel 130 extending downward, so that the inner wall of the second material drop channel 130 extends downward to the lowest end of the image capture range of the second camera 1452, so that the second camera 1452 can effectively avoid capturing the image of the first coarse screened material through the outer wall of the second material drop channel 130 when capturing the second coarse screened material falling from the outside, thereby reducing its influence, saving computing power, and improving the recognition efficiency and accuracy of the second camera 1452 for the second coarse screened material.

[0060] In some embodiments, the identification unit 140 may include: a ray machine for emitting rays to irradiate the first coarse screened material and the second coarse screened material; in some embodiments, such as Figure 3 , Figure 4 As shown, the first identification unit may include: a first annular receiver 1421, and the second identification unit may include: a second annular receiver 1422. The first annular receiver 1421 and the second annular receiver 1422 may be concentrically arranged, and both are located below the first blanking channel 120 and the second blanking channel 130.

[0061] The first identification unit includes a first annular receiver 1421, which is used to receive the radiation emitted by the radiation optical machine to identify the first coarse screened material; the first annular receiver 1421, the outer peripheral side of which is the first receiving end, is used to receive the radiation emitted by the radiation optical machine 141 to detect the first coarse screened material. Since the radiation optical machine 141 is arranged below the peripheral side of the first drop channel 120 and the second drop channel 130, the outer peripheral side of the first annular receiver 1421 can be used as the first receiving end to receive the radiation emitted by the optical machine. The radiation emitted by the optical machine can pass through the falling first coarse screened material and be received by the first receiving end of the first annular receiver 1421, so that the first annular receiver 1421 can determine the category of the first coarse screened material according to the received radiation information. The first drop channel 120 is arranged on the outer peripheral side of the cyclone separation unit 110, and its diameter is larger than the second drop channel 130. Therefore, the outer diameter of the first annular receiver 1421 can be larger than that of the second annular receiver 1422. The outer diameter of the first annular receiver 1421 can be larger than the outer diameter of the second blanking channel 130 and smaller than the inner diameter of the first blanking channel 120, so that the first annular receiver 1421 can only be used to receive the rays that sweep through the first coarse screened material and determine the category of the first coarse screened material. The first annular receiver 1421 can be coaxially arranged with the first blanking channel 120 and the second blanking channel 130. Figure 3 , Figure 4 As shown, the inner diameter of the first annular receiver 1421 can be larger than the outer diameter of the second blanking channel 130, so that the first annular receiver 1421 can be mounted outside the second blanking channel 130, so that the first annular receiver 1421 is only used to determine the category of the first coarse screened material, thereby avoiding the influence of the second coarse screened material on the detection of the first annular receiver 1421.

[0062] The second identification unit includes a second annular receiver 1422, which is used to receive the rays emitted by the ray machine to identify the second coarse screened material. The second annular receiver 1422, the outer peripheral side of which is the second receiving end, is used to receive the rays emitted by the ray machine 141 to detect the second coarse screened material. Since the ray machine 141 is arranged below the circumference of the first drop channel 120 and the second drop channel 130, the outer peripheral side of the second annular receiver 1422 can be used as the second receiving end to receive the rays emitted by the machine. The rays emitted by the machine can pass through the falling second coarse screened material and be received by the second receiving end of the second annular receiver 1422, so that the second annular receiver 1422 can determine the category of the second coarse screened material according to the received ray information. The second drop channel 130 is arranged below the cyclone separation unit 110, and its diameter is smaller than the first drop channel 120. Therefore, the outer diameter of the second annular receiver 1422 can be made smaller than the second blanking channel 130, so that the second annular receiver 1422 can receive the rays that sweep through the second coarse screened material and determine the type of the second coarse screened material. The second annular receiver 1422 can be coaxially arranged with the first blanking channel 120 and the second blanking channel 130. Figure 3 , Figure 4 As shown, since the second annular receiver 1422 is relatively small in size, the optical path between the ray optical machine 141 and the second annular receiver 1422 passes through the falling path of the first coarse screened material and the second coarse screened material. Therefore, the second annular receiver 1422 may receive the ray information of the first coarse screened material and the second coarse screened material at the same time, which may cause the second annular receiver 1422 to be affected by the first coarse screened material in identifying the second coarse screened material. The ray information received by the second annular receiver 1422 can be screened, and the influence of the first coarse screened material can be eliminated according to the material volume and falling speed in the acquired ray image, so that the second annular receiver 1422 is only used to determine the category of the second coarse screened material. The first annular receiver 1421 and the second annular receiver 1422 can be staggered in the vertical direction, so that the first annular receiver 1421 is set on the side close to the upper cyclone separation unit 110, and the second annular receiver 1422 is set below the first annular receiver 1421, thereby ensuring that the first annular receiver 1421 and the second annular receiver 1422 do not interfere with each other, thereby ensuring the efficiency and accuracy of identification.

[0063] Through the double-layer identification mechanism provided in this embodiment, the first coarse screening material and the second coarse screening material can be independently detected by the first annular receiver 1421 and the second annular receiver 1422, respectively, which can ensure that the identification unit 140 can accurately determine the type of the material, reduce misjudgment, and improve sorting accuracy. By setting a larger first annular receiver 1421, the influence of the second coarse screening material on its detection can be avoided, and the second annular receiver 1422 can eliminate the interference of the first coarse screening material by screening the radiographic image information, ensuring accurate identification of the second coarse screening material, so that the first annular receiver 1421 and the second annular receiver 1422 have stronger anti-interference ability, so that the identification unit 140 has higher identification accuracy, and the sorting accuracy of the sorting device is higher. By staggering the first annular receiver 1421 and the second annular receiver 1422, they can be operated synchronously, so that the material identification and sorting have higher efficiency, thereby improving the overall work efficiency of the sorting device. At the same time, through the first annular receiver 1421 and the second annular receiver 1422, the entire identification unit 140 can be made more compact, reducing the footprint of the equipment, facilitating the installation and use of the sorting equipment in complex environments such as mines, and improving the adaptability of the equipment.

[0064] In some embodiments, Figure 4As shown, it may also include: a lens 143, which is arranged on the outer peripheral side of the second annular receiver 1422, and is used to reduce the influence of the first coarse screened material on the identification of the second annular receiver 1422. Since the second annular receiver 1422 is small in size, the light path between the ray optical machine 141 and the second annular receiver 1422 passes through the falling path of the first coarse screened material and the second coarse screened material at the same time. Therefore, the second annular receiver 1422 may receive the ray information of the first coarse screened material and the second coarse screened material at the same time, thereby affecting the efficiency of material category identification. A lens 143 may be arranged on the outer peripheral side of the second annular receiver 1422, which may be a convex lens 143. A plurality of lenses 143 may be arranged to surround the outer peripheral side of the second annular receiver 1422, so that the lens 143 can be located between the second annular receiver 1422 and the annular trajectory of the first coarse screened material falling. In the process of the ray from the optical machine to the second annular receiver 1422, the ray will first scan the falling first coarse screened material, and then the ray can pass through the lens 143, scan the falling second coarse screened material and finally be received by the second annular receiver 1422. Among them, by setting the lens 143, the ray can be made to converge after passing through the lens 143 after scanning the first coarse screened material, so that the size of the first coarse screened material is smaller in the image obtained after the second annular receiver 1422 receives the ray signal, so that it is convenient to eliminate the reduced first coarse screened material information during the identification process, so that the second annular receiver 1422 is only used to determine the category of the second coarse screened material, and reduce the influence of the first coarse screened material. According to the double-layer identification mechanism provided by this embodiment, by setting the lens 143, the ray information of the first coarse screened material can be reduced after passing through the lens 143, thereby reducing its imaging range in the second annular receiver 1422, so that the system can more accurately eliminate the influence of the first coarse screened material and improve the recognition accuracy of the second coarse screened material. At the same time, the signal received by the second annular receiver 1422 can be made more stable and reliable, thereby enhancing the adaptability of the double-layer identification mechanism to complex environments, effectively reducing interference from external factors, reducing misjudgments caused by overlapping material signals, and improving the reliability of identification and sorting.

[0065] In some embodiments, Figures 4 to 6The identification unit 140 shown may also include: a reflector 144, which is arranged below the cyclone separation unit 110 to reflect the rays emitted by the ray machine 141; and / or a plurality of ray machines 141, which are evenly distributed in a ring shape below the cyclone separation unit 110. The identification unit 140 may be provided with a ray machine 141. According to the position of the ray machine 141, one or more reflectors 144 may be arranged below the cyclone separation unit 110 so that the reflector 144 can reflect the rays emitted by the ray machine 141, so that the optical path area where the identification unit 140 is located is filled with rays, which can effectively save the cost of the ray machine 141 and effectively expand the identification area of ​​the identification unit 140, and can ensure that the materials entering the optical path area of ​​the identification unit 140 can be scanned by the rays and the corresponding ray receivers 142 receive the rays, thereby finally realizing accurate and efficient identification of the materials. Specifically, as Figure 5 As shown, Figure 5 The middle circle is the first annular receiver 1421, and the left side of the figure is the ray optical machine 141. A plurality of reflectors 144 can be arranged around the first annular receiver 1421 so that the rays emitted by the ray optical machine 141 can cover the plane where the first annular receiver 1421 is located, so that the difference in ray intensity at various locations is small, thereby ensuring better recognition accuracy. Figure 5 As shown, a ray machine 141 and three reflectors 144 may be provided, so that the ray machine 141 and the reflectors 144 are evenly arranged around the first annular receiver 1421 to ensure full coverage of the ray and better uniformity of the ray intensity. Figure 6 As shown, Figure 6 The middle circle is the second annular receiver 1422, and the left side of the figure is the ray optical machine 141. A plurality of reflectors 144 can be arranged around the second annular receiver 1422 so that the rays emitted by the ray optical machine 141 can cover the plane where the second annular receiver 1422 is located, so that the difference in ray intensity at various locations is small, thereby ensuring better recognition accuracy. Figure 6 As shown, a ray light machine 141 and three reflectors 144 can be provided, so that the ray light machine 141 and the reflector 144 are evenly arranged around the second annular receiver 1422 to ensure full coverage of the ray and better uniformity of the ray intensity. In some embodiments, the identification unit 140 may include multiple ray light machines 141, which are evenly distributed around the cyclone separation unit 110 in a ring shape. The multiple ray light machines 141 can be evenly distributed around the cyclone separation unit 110, so that the optical path area where the identification unit 140 is located is full of rays, ensuring full coverage of the rays and better uniformity of the ray intensity, thereby improving the accuracy of the identification unit 140 in identifying the type of material.

[0066] According to the double-layer identification mechanism provided in this embodiment, by setting a reflector 144 on the lower side of the cyclone separation unit 110, the rays emitted by the ray machine 141 can be effectively reflected in different directions, thereby expanding the detection area of ​​the identification unit 140, ensuring that all materials entering the ray light path can be irradiated by the rays, ensuring full coverage of the rays, so that the ray detection unit can detect each falling material more comprehensively. In addition, through the reasonable arrangement of the reflector 144, the unevenness of the ray intensity can be reduced, avoiding the occurrence of detection blind spots due to insufficient ray intensity in certain areas, or insufficient ray information. It can improve the recognition accuracy and ensure that the imaging quality of the material in the recognition unit 140 is consistent, so that the recognition unit 140 has a higher recognition accuracy. By setting up multiple ray light machines 141, it is also possible to improve the uniformity and coverage of the rays and enhance the detection accuracy of falling materials.

[0067] In some embodiments, the first material drop channel 120 may include: a deceleration unit, which is used to reduce the falling speed of the first coarse screen material in the first material drop channel 120. Since the first coarse screen material falls from the first opening 111 located at the top of the cyclone separation unit 110, and the first coarse screen material flies out due to the centrifugal force provided by the rotation of the cyclone separation unit 110, the first coarse screen material may have a certain initial velocity when falling, resulting in the first coarse screen material falling too fast, affecting the identification and sorting of the ray sorting unit. In addition, the first coarse screen material has a long distance from the beginning of falling to the process of sorting, which is also likely to cause the first coarse screen material to pass through the ray sorting unit at a faster speed, affecting the accuracy of identification and sorting. Therefore, a deceleration unit can be set in the first material drop channel 120, and the deceleration unit can effectively reduce the falling speed of the first coarse screen material, thereby increasing the speed of the first coarse screen material when passing through the ray sorting unit to ensure that the ray sorting unit has a higher accuracy in identifying and sorting the first coarse screen material. Specifically, the deceleration unit may be an inclined plate arranged inside the first drop channel 120. A plurality of inclined plates may be arranged alternately along the falling direction of the first coarse screened material in the first drop channel 120, so that after the first coarse screened material enters the first drop channel 120, it collides with the inclined plate during the falling process to achieve deceleration. The falling first coarse screened material may also slide down along the inclined plate, thereby changing the motion trajectory of the first coarse screened material. A vertical guide plate may be arranged at the lower part of the first drop channel 120, or no inclined plate may be arranged at the lower inner part of the first drop channel 120, so as to ensure that the falling trajectory of the first coarse screened material falling from the bottom of the first drop channel 120 is closer to the free fall of the first coarse screened material. In addition, a spiral guide rail may be formed inside the first drop channel 120, so that after the first coarse screened material enters the first drop channel 120, it can fall along the spiral guide rail, effectively limiting the running trajectory of the first coarse screened material, making the range of the drop motion trajectory smaller, so as to reduce the error of the sorting equipment when performing the sorting operation later.

[0068] According to the double-layer identification mechanism provided in this embodiment, by setting a deceleration unit, the falling speed of the first coarse screened material can be effectively reduced, so that its movement when passing through the ray sorting unit is more stable, thereby improving the accuracy of ray detection and reducing blurred imaging or misjudgment caused by excessive speed. In addition, the first coarse screened material can also be made to fall along a specific path through the deceleration unit to avoid trajectory deviation, ensuring that the first coarse screened material is always within the ray detection range during the process of falling to the ray sorting unit until the recognition is completed, thereby improving the stability of detection, reducing the sorting error caused by the irregular material trajectory, and improving the accuracy of sorting. In addition, through the deceleration unit, the falling speed of the first coarse screened material can be controlled, which can reduce its impact on the first drop channel 120 and other mechanical parts, reduce the wear of the double-layer identification mechanism caused by the drop collision, improve the service life of the double-layer identification mechanism, reduce maintenance costs, and ensure the safety of the double-layer identification mechanism during operation. Through the deceleration unit, it can be ensured that the first coarse screened material is close to a free fall state when entering the ray detection area, so that its speed and posture are more controllable, thereby further improving the stability and accuracy of ray identification.

[0069] In some embodiments, Figure 4As shown, the inner circular top of the second material drop channel 130 is provided with a conical slide 131, which is used to disperse the second coarse screened material falling from the second opening 112 to different positions of the second material drop channel 130. The second coarse screened material falls from the second opening 112 at the bottom of the cyclone separation unit 110. Since the amount of the second coarse screened material is large and the size of the second opening 112 is limited, it is easy to cause a large amount of the second coarse screened material to fall at the same time, which is difficult to identify and sort. Therefore, the second material drop channel 130 can be annular, and the second coarse screened material can be dispersed to various places of the annular second material drop channel 130 after falling from the second opening 112, so that the second coarse screened material is dispersed, which is convenient for subsequent identification and sorting. Since the second material drop channel 130 is coaxially arranged with the cyclone separation unit 110, in order to ensure that the second coarse screened material can all enter the second material drop channel 130, the inner circular top of the second material drop channel 130 can be provided with a conical slide 131. The conical slide 131 is in the shape of a cone as a whole, and can be coaxially arranged with the cyclone separation unit 110, so that after the second coarse screened material falls from the second opening 112 of the cyclone separation unit 110, it can slide down the conical slide 131 to the circumferential side, and finally the second coarse screened material can be dispersed to different positions of the second drop channel, so as to avoid a large amount of second coarse screened material falling synchronously in the second drop channel 130, resulting in the overlap of each material and difficulty in distinguishing and identifying when the identification unit 140 obtains the radiographic image of the second coarse screened material. According to the double-layer identification mechanism provided in this embodiment, by setting the conical slide 131 at the inner circular top of the second drop channel 130, the second coarse screened material falling from the second opening 112 can be effectively and evenly dispersed to different positions of the annular second drop channel 130, avoiding the concentrated accumulation of the second coarse screened material, improving the uniformity of the material falling, and avoiding the overlap of multiple second coarse screened materials when falling at the same position at the same time, thereby ensuring that the identification unit 140 can clearly distinguish each second coarse screened material and improve the accuracy of identification. In addition, the conical slide 131 makes the materials evenly distributed, which makes it easier for the identification unit 140 to independently image and analyze each second coarse screening material, avoiding misjudgment due to material accumulation or overlap, and improving the overall sorting efficiency.

[0070] In some embodiments, the cyclone separation unit may include: an inner shell and an outer shell.

[0071] The inner shell is a motion mechanism, equipped with gears and a matching bearing seat, which is used to rotate through gear meshing to screen the first coarse screen material and the second coarse screen material. The material can be put into the inner shell, and the top of the inner shell can be opened with a first opening, and the first coarse screen material that has completed the coarse screen can fly out from the first opening and enter the first drop channel 120, and the bottom of the inner shell can be opened with a second opening, and the second coarse screen material that has completed the coarse screen can fall from the second opening and enter the second drop channel 130. The inner shell can be driven by a motor fixed to the outer shell to move. The inner shell can be equipped with gears and a bearing seat. The inner shell can be driven by the motor to mesh and rotate, thereby driving the inner shell to rotate, and the first coarse screen material and the second coarse screen material are sorted by centrifugal force, so that the light first material flies out from the first opening, and the heavy second material falls from the second opening. In addition, the inner shell can also achieve the screening of the first coarse screen material and the second coarse screen material by vibration.

[0072] The outer shell is arranged on the outside of the inner shell and is a fixed part. The outer shell is equipped with a motor to drive the inner shell to rotate or vibrate. The outer shell can serve as a fixed support structure to ensure the stability of the inner shell during movement, while preventing the rotating parts from affecting the screening accuracy due to vibration or eccentricity. The outer shell is equipped with a motor, and the motor drives the inner shell to rotate or vibrate through a transmission system, thereby realizing dynamic screening of materials. Through the controllable driving mode of the motor, the rotation speed or vibration frequency can be adjusted according to the material screening requirements to adapt to the screening requirements of different materials, thereby improving the applicability and flexibility of the screening equipment. The cyclone sorting unit provided in this embodiment can avoid the blockage problem in the traditional screening method, improve the screening accuracy and efficiency, and the screening method of the internal shell has higher sorting stability, reduces material loss during the screening process, and reduces equipment maintenance costs.

[0073] Based on the same inventive concept, the present disclosure also provides a sorting device, such as Figure 7 As shown, it may include: a double-layer identification mechanism, a sorting mechanism 210 and a material receiving mechanism 220 as in any of the above embodiments. The double-layer identification mechanism is used to screen the material into a first coarse screening material and a second coarse screening material, and to identify the first coarse screening material and the second coarse screening material respectively to determine their categories, so that the materials can be separated and sorted by the sorting mechanism 210 according to the identification results, and finally the sorted materials can be collected by the material receiving mechanism 220.

[0074] The sorting mechanism 210 includes a first sorting unit for sorting a first coarsely screened material, and a second sorting unit for sorting a second coarsely screened material.

[0075] The first sorting unit is used to sort the first coarse screened material according to the recognition result of the double-layer recognition mechanism. The first sorting unit can be arranged below the recognition unit 140, and can sort the first coarse screened material according to the recognition result of the double-layer recognition mechanism. According to the recognition result of the first coarse screened material by the double-layer recognition mechanism, the first coarse screened material can be sorted by the first sorting unit, and different categories of the first coarse screened material can be separated, and the different categories of the first coarse screened material can be respectively received by the receiving mechanism 220. The first sorting unit can only sort the first coarse screened material without affecting the sorting of the second coarse screened material.

[0076] The second annular nozzle 212 is used to sort the second coarse screen material according to the recognition result of the double-layer recognition mechanism. The second annular nozzle 212 can be arranged below the recognition unit 140, and can sort the second coarse screen material according to the recognition result of the double-layer recognition mechanism. According to the recognition result of the second coarse screen material by the double-layer recognition mechanism, the second coarse screen material can be sprayed through the second annular nozzle 212 to separate the second coarse screen materials of different categories, and the second coarse screen materials of different categories can be received respectively through the material receiving mechanism 220. The second annular nozzle 212 can only sort the second coarse screen material without affecting the sorting of the first coarse screen material. The first sorting unit and the second annular nozzle 212 can be coaxially arranged, so that the first sorting unit and the second annular nozzle 212 can be arranged coplanarly, so that they can respectively sort the first coarse screen material and the second coarse screen material, which can effectively save the space of the sorting equipment. The amount of gas blown by the first sorting unit and the second annular nozzle 212 can be controlled, or the first sorting unit and the second annular nozzle 212 can be staggered in the vertical direction to ensure that the first sorting unit and the second annular nozzle 212 do not interfere with each other when blowing corresponding materials, thereby improving the accuracy of material sorting.

[0077] The material receiving mechanism 220 is used to receive the sorted materials. The material receiving mechanism 220 can classify and store the sorted materials, so as to obtain sorted materials of different categories. Among them, the first coarse screened materials and the second coarse screened materials belonging to the same category can be collected together by the material receiving mechanism 220, and the material receiving mechanism 220 can include at least two different material receiving bins to receive the first material and the second material respectively. Specifically, the material can be mixed ore, the first material can be gangue, and the second material can be coal. Through the first sorting unit and the second annular nozzle 212, the first coarse screened material and the second coarse screened material can be sorted separately, and finally the first coarse screened material and the second coarse screened material of the same category are received in different material receiving bins respectively.

[0078] According to the sorting device provided in this embodiment, the sorting device can realize the secondary sorting of the material, and the material is screened into the first coarse screen material and the second coarse screen material by the cyclone sorting unit 110 of the double-layer identification mechanism, and the first coarse screen material and the second coarse screen material are respectively identified by the identification unit 140, so as to determine the category of each material. Among them, the first coarse screen material is light in weight, and the second coarse screen material is heavy in weight. The cyclone sorting unit 110 screens the material according to weight, and the materials of different weights can be first classified, so as to facilitate the subsequent sorting operation of the first coarse screen material and the second coarse screen material by the sorting mechanism 210. The sorting strategy can be adjusted according to the weight. The first coarse screen material and the second coarse screen material can be sorted respectively by the first sorting unit and the second annular nozzle 212 of the sorting mechanism 210. According to the identification results of the first coarse screen material and the second coarse screen material, the first coarse screen material and the second coarse screen material are sorted at the same time, which can effectively improve the sorting efficiency and can more quickly sort more materials at the same time. By setting the first sorting unit and the second annular nozzle 212, it is possible to ensure that the first coarse screened material and the second coarse screened material are effectively separated, avoid mixing of the first coarse screened material and the second coarse screened material, ensure that the sorting processes are independent of each other, and thus ensure that the different types of materials collected after the sorting are finally completed have higher quality and purity. The material collecting mechanism 220 can effectively avoid mixing of different materials by classifying and collecting the sorted materials, thereby ensuring the efficiency and accuracy of material sorting. By setting the first sorting unit and the second annular nozzle 212 coaxially, the space utilization rate of the equipment is effectively improved, the overall floor space of the equipment is reduced, and the space of the sorting equipment can be effectively saved.

[0079] In some embodiments, the first sorting unit may include: a first annular nozzle 211; the second sorting unit may include: a push plate assembly, or a second annular nozzle 212. Since the cyclone sorting unit 110 can roughly screen the material into a second coarse screen material with a heavier weight and a first coarse screen material with a lighter weight according to the weight, and the first coarse screen material and the second coarse screen material are respectively identified by the identification unit 140. The first coarse screen material with a lighter weight can be sorted by the first sorting unit, and the second coarse screen material with a heavier weight can be sorted by the second sorting unit. Therefore, the first coarse screen material with a lighter weight can be sorted by the first annular nozzle 211, with higher sorting accuracy. Since the weight of the second coarse screen material is large, the second coarse screen material can be sorted by the push plate assembly or the second annular nozzle 212. Specifically, when the weight of the second coarse screen material is too large, the blowing force of the second annular nozzle 212 is insufficient, and it may be impossible to sort, resulting in poor accuracy of material sorting and a large sorting error. When the volume of the second coarse screen material is too large, the spraying position of the second annular nozzle 212 is concentrated, which may cause the material to rotate or deviate after being sprayed, and may also cause a large sorting error in the material sorting, and poor accuracy. Therefore, when the weight or volume of the second coarse screen material is too large, the push plate assembly can be used to sort the second coarse screen material to ensure that the push plate assembly can achieve efficient and high-accuracy sorting. In addition, by sorting the second coarse screen material through the push plate assembly and sorting the first coarse screen material through the first annular nozzle 211 at the same time, the sorting error caused by the opposite spraying of the two spraying mechanisms can be avoided, and the interference of the two independent sorting processes can be avoided, thereby improving the accuracy of sorting. In other cases, the volume of the second coarse screen material is small, and the push plate assembly is set in an annular shape, which may cause a certain gap between adjacent push plates, and the second coarse screen material with a smaller volume is easy to fall from the gap, resulting in a large sorting error in the process of material sorting through the push plate assembly, and poor accuracy. In this case, the second annular nozzle 212 can be used to implement the sorting of the second coarse screened material, thereby improving the sorting accuracy of the second coarse screened material with a smaller volume.

[0080] In some embodiments, Figure 8 As shown, the material receiving mechanism 220 includes: a first receiving unit 230, a second receiving unit 240, a first material receiving bin 250, and a second material receiving bin 260. The first material receiving bin 250 can be used to receive the first material obtained after sorting, and the second material receiving bin 260 can be used to receive the second material obtained after sorting. Specifically, the first material can be gangue, and the second material can be coal. The first material receiving bin 250 and the second material receiving bin 260 can be used to receive materials of different categories.

[0081] The first receiving unit 230 is annular and disposed below the first material dropping channel 120, and is used to receive the first coarse screened material that has been sorted. The inner ring of the first receiving unit 230 is used to receive the first material sorted by the first sorting unit, and the outer ring of the first receiving unit 230 is used to receive the second material that has not been sorted by the first sorting unit. The first sorting unit may be a first annular nozzle 211. The first receiving unit 230 may be annular, and may include two concentrically arranged annular receiving chambers, an inner ring and an outer ring. A separating plate with a circular cross section may be disposed between the inner ring and the outer ring, so that the receiving chamber of the inner ring of the first receiving unit 230 is isolated from the receiving chamber of the outer ring, and is used to collect different types of materials. The first receiving unit 230 may be used to receive the first coarse screened material that has been sorted by the first annular nozzle 211, which includes the first material and the second material. The receiving chamber of the inner ring of the first receiving unit 230 may be used to receive the first material, and the receiving chamber of the outer ring of the first receiving unit 230 may be used to receive the second material. Specifically, the blowing strategy of the first annular nozzle 211 is: to blow the heavier material. Taking the separation of coal gangue ore as an example, the first material can be heavier gangue, and the second material can be lighter coal. Therefore, the inner ring of the first receiving unit 230 can be used to receive the first material gangue blown by the first annular nozzle 211, and the outer ring of the first receiving unit 230 can be used to receive the second material coal that is not blown by the first annular nozzle 211, so as to achieve coal gangue separation. The inner side wall of the inner ring of the first receiving unit 230 can share the same structure with the outer side wall of the outer ring of the second receiving unit 240. In order to prevent the wear of the side wall of the first receiving unit 230 by the material during the falling process, a roller 270 can be arranged on the inner side wall of the outer ring of the first receiving unit 230, and the roller 270 can rotate along the direction of material movement, thereby dissolving the impact force of the material and extending the service life of the wearing parts.

[0082] The second receiving unit 240 is annular and arranged below the second material dropping channel 130, and is used to receive the first coarse screened material that has been sorted. The inner ring of the second receiving unit 240 is used to receive the first material that has not been sorted by the second sorting unit, and the outer ring of the second receiving unit 240 is used to receive the second material sorted by the second sorting unit. The second sorting unit can be a second annular nozzle 212, or a push plate mechanism. The second receiving unit 240 can be annular, and can include two concentrically arranged annular receiving cavities, an inner ring and an outer ring, and a separation plate with a circular cross section can be arranged between the inner ring and the outer ring, so that the receiving cavity of the inner ring of the second receiving unit 240 is isolated from the receiving cavity of the outer ring, and is used to collect different types of materials. The first receiving unit 230 can be used to receive the second coarse screened material that has been sorted by the second annular nozzle 212, including the first material and the second material. Specifically, the blowing strategy of the sorting mechanism 210 is: blowing lighter materials. Taking the separation of coal gangue ore as an example, the first material may be heavier gangue, and the second material may be lighter coal, so the inner ring of the second receiving unit 240 may be used to receive the first material gangue that is not sprayed by the second annular nozzle 212, and the outer ring of the second receiving unit 240 may be used to receive the second material coal sprayed by the second annular nozzle 212. The second receiving unit 240 may be arranged concentrically with the first receiving unit 230, so that the first receiving unit 230 and the second receiving unit 240 respectively receive the first coarse screened material and the second coarse screened material that have been sorted, and distinguish each other according to different categories of materials. In order to prevent the wear of the side wall of the second receiving unit 240 by the material during the falling process, a roller 270 may be arranged on the inner side wall of the outer ring of the second receiving unit 240, and the roller 270 may rotate along the direction of material movement, thereby dissolving the impact force of the material and extending the service life of the wearing parts.

[0083] The first material receiving bin 250 is used to receive the first material collected by the inner circle of the first receiving unit 230 and the inner circle of the second receiving unit 240. The first material receiving bin 250 can be used to receive the first material. The first material receiving bin 250 can be connected to the inner circle of the first receiving unit 230 and the inner circle of the second receiving unit 240, so that the first material in the inner circle storage cavity of the first receiving unit 230 and the first material in the inner circle storage cavity of the second receiving unit 240 can both enter the first material receiving bin 250, so that the first materials received by the first receiving unit 230 and the second receiving unit 240 respectively are collected by the first material receiving bin 250.

[0084] The second material receiving bin 260 is used to receive the second material collected by the outer ring of the first receiving unit 230 and the outer ring of the second receiving unit 240. The second material receiving bin 260 can be used to receive the second material. The second material receiving bin 260 can be connected to the outer ring of the first receiving unit 230 and the outer ring of the second receiving unit 240, so that the second material in the outer ring storage cavity of the second receiving unit 240 and the second material in the outer ring storage cavity of the second receiving unit 240 can both enter the second material receiving bin 260, so that the second materials received by the first receiving unit 230 and the second receiving unit 240 are collected by the second material receiving bin 260.

[0085] Specifically, Figure 7 As shown, taking the separation of coal gangue ore as an example, the first material is gangue and the second material is coal. The first coarse screening material falls from the first material dropping channel 120, and the identification unit 140 determines the coal and gangue in the first coarse screening material. The first annular nozzle 211 can spray the gangue according to the identification result of the identification unit 140, so that the gangue enters the inner circle receiving chamber of the first receiving unit 230. Figure 7 As shown, a first receiving port 231 communicating with the first receiving bin 250 may be formed on one side of the inner ring receiving chamber of the first receiving unit 230, so that the gangue entering the inner ring receiving chamber of the first receiving unit 230 can enter the first receiving bin 250 for receiving the gangue along the first receiving port 231. Specifically, the bottom surface of the inner ring receiving chamber of the first receiving unit 230 may be tilted toward the side where the first receiving port 231 is located, so as to guide the gangue entering the inner ring receiving chamber of the first receiving unit 230 to flow into the first receiving bin 250 along the tilted bottom surface. The first annular nozzle 211 does not spray the coal, so that the coal enters the outer ring receiving chamber of the first receiving unit 230. The outer ring receiving chamber of the first receiving unit 230 may be directly connected to the second receiving bin 260, so that all the coal in the outer ring receiving chamber of the first receiving unit 230 directly enters the second receiving bin 260 for receiving the coal.

[0086] The second annular nozzle 212 can spray the coal according to the recognition result of the recognition unit 140, so that the coal enters the outer ring receiving cavity of the second receiving unit 240. Figure 8As shown, a second receiving port 241 communicating with the second receiving bin 260 may be formed on one side of the outer ring receiving chamber of the second receiving unit 240, so that the coal entering the outer ring receiving chamber of the second receiving unit 240 can enter the second receiving bin 260 for receiving coal along the second receiving port 241. Specifically, the bottom surface of the outer ring receiving chamber of the second receiving unit 240 may be tilted toward the second receiving port 241, so as to guide the coal entering the outer ring receiving chamber of the second receiving unit 240 to flow into the second receiving bin 260 along the tilted bottom surface. The second annular nozzle 212 does not spray the gangue, so that the gangue can enter the inner ring receiving chamber of the second receiving unit 240. The inner ring receiving chamber of the second receiving unit 240 may be directly connected to the first receiving bin 250, so that all the gangue in the inner ring receiving chamber of the second receiving unit 240 directly enters the first receiving bin 250 for receiving gangue.

[0087] According to the sorting equipment provided by this embodiment, by setting the first annular receiving unit 230 and the second receiving unit 240, and storing different materials in their respective inner and outer rings, it is possible to ensure that the materials are accurately sorted according to categories, avoid cross contamination, improve the purity of different types of materials finally obtained, and improve the accuracy and efficiency of sorting. By setting the first annular receiving unit 230 and the second annular receiving unit 240 concentrically, the structure of the sorting equipment can be made more compact, effectively saving the floor space of the sorting equipment. By connecting the inner ring of the first receiving unit 230 and the inner ring of the second receiving unit 240 to the first material receiving bin 250, the first material can be collected in a centralized manner, and by connecting the outer ring of the first receiving unit 230 and the outer ring of the second receiving unit 240 to the second material receiving bin 260, the second material can be collected in a centralized manner. This structure can effectively realize efficient classified storage of materials, reduce unnecessary intermediate processing steps, and improve the space utilization rate of the material receiving bin.

[0088] In some embodiments, the first sorting unit is arranged on the outer peripheral side below the first material drop channel 120, and the second sorting unit is arranged on the inner peripheral side below the second material drop channel 130. The first sorting unit is used to sort the first coarse screen material from the outside to the inside; the second sorting unit is used to sort the second coarse screen material from the inside to the outside. Specifically, the first sorting unit can be the first annular nozzle 211, and the second sorting unit can be the second annular nozzle 212 or a push plate mechanism. The first annular nozzle 211 is only used to spray and sort the first coarse screen material falling from the first material drop channel 120, and the second annular nozzle 212 is only used to spray and sort the second coarse screen material falling from the second material drop channel 130. Since the inner diameter of the first material drop channel 120 is larger than the outer diameter of the second material drop channel 130, the diameter of the first annular nozzle 211 can be larger than or equal to the diameter of the second annular nozzle 212, so that the first annular nozzle 211 and the second annular nozzle 212 can spray the corresponding materials respectively. The first annular nozzle 211 can be coaxially arranged with the cyclone separation device and the first and second material drop channels 120 and 130. The diameter of the first annular nozzle 211 can be greater than or equal to the outer diameter of the first material drop channel 120, so that the first annular nozzle 211 can spray materials from outside to inside, so as to ensure that all the first coarse screen materials can pass through the first annular nozzle 211 for separation and separation. Figure 8As shown. The height of the inner side wall of the inner circle of the first receiving unit 230 can be made greater than the inner and outer side walls of the first receiving unit 230, so that the first material sprayed inward by the first annular nozzle 211 can smoothly enter the first receiving unit 230, and avoid excessive spraying that causes the first material sprayed inward by the first annular nozzle 211 to enter the second receiving unit 240. The height of the inner side wall of the inner circle of the first receiving unit 230 extending upward can be higher than the height of the first annular nozzle 211, so as to block the gas sprayed by the first annular nozzle 211, so as to avoid affecting the spraying accuracy of the second annular nozzle 212 on the inside. The diameter of the second annular nozzle 212 can be smaller than the inner diameter of the second material dropping channel 130, so that the second annular nozzle 212 can spray materials from the inside to the outside, so as to ensure that all the second coarse screen materials can pass through the second annular nozzle 212 to achieve separation and sorting. The inner wall of the inner circle of the first receiving unit 230 and the outer wall of the outer circle of the second receiving unit 240 can be of the same structure, so that the height of the inner wall of the inner circle of the first receiving unit 230 is greater than the inner wall of the outer circle and the inner wall of the inner circle of the second receiving unit 240, which can block the gas sprayed by the second annular nozzle 212, thereby avoiding affecting the spray accuracy of the first annular nozzle 211 on the outside. Through the sorting equipment provided by this embodiment, the diameter of the first annular nozzle 211 can be greater than the second annular nozzle 212, and the spraying methods from outside to inside and from inside to outside are respectively adopted, so as to ensure that the first coarse screen material and the second coarse screen material are independently sorted to avoid mutual interference, and at the same time, it can ensure that all the first coarse screen materials and the second coarse screen materials pass through the corresponding spraying area, thereby effectively avoiding missed selection and misselection, and improving the spraying efficiency and accuracy. By making the inner side wall of the inner circle of the first receiving unit 230 higher than the inner side wall of the outer circle of the second receiving unit 240, the airflow interference between the first annular nozzle 211 and the second annular nozzle 212 can be effectively blocked, thereby ensuring the accuracy of the spraying and improving the sorting accuracy.

[0089] Based on the same inventive concept, Fig.11 As shown, the present disclosure further provides a material identification and sorting method, which is applied to a double-layer identification mechanism as in any of the aforementioned embodiments. The material identification and sorting method may include: step S310 and step S320.

[0090] Step S310, the material is screened into a first coarse screened material and a second coarse screened material by the cyclone separation unit 110. The material can be put into the cyclone separation unit 110 of the double identification mechanism, and the cyclone separation unit 110 rotates so that the first coarse screened material with a smaller weight climbs upward along the inner wall of the cyclone separation unit 110 as the cyclone separation unit 110 rotates, and finally, under the action of centrifugal force, the first coarse screened material can fly out from the first outlet, enter the first drop channel 120, and fall along the first drop channel 120. During the rotation of the cyclone separation unit 110, the second coarse screened material with a larger weight will accumulate at the bottom of the internal shell 114, collide with each other, and finally make the second coarse screened material fall from the second opening 112 opened at the bottom of the cyclone separation unit 110, enter the second drop channel 130, and fall along the second drop channel 130. The cyclone separation unit 110 can screen the material into a first coarse-screened material and a second coarse-screened material, and the first coarse-screened material and the second coarse-screened material are separated from each other and fall to the ray separation unit through different channels.

[0091] Step S320, through the identification unit 140, the first coarse screened material and the second coarse screened material are respectively identified, and the categories of the first coarse screened material and the second coarse screened material are determined. The first coarse screened material and the second coarse screened material fall into the identification range of the identification unit 140 respectively, and the first coarse screened material falling from the first material drop channel 120 can be identified by the identification unit 140 to determine the category to which each first coarse screened material belongs, so as to facilitate the subsequent separation of materials of different categories according to the identification results. The second coarse screened material falling from the second material drop channel 130 can be identified by the identification unit 140 to determine the category to which each second coarse screened material belongs, so as to facilitate the subsequent separation of materials of different categories according to the identification results.

[0092] According to the material identification and sorting method provided in this embodiment, the material is divided into a first coarse-screened material and a second coarse-screened material through preliminary screening by the cyclone sorting unit 110, so that materials of different weights fall along different channels, thereby reducing the mixing of materials of different categories and improving the sorting accuracy of the subsequent identification unit 140. The identification unit 140 simultaneously identifies the first coarse-screened material and the second coarse-screened material, which can effectively improve the identification efficiency, thereby improving the overall sorting efficiency of the sorting equipment.

[0093] In some embodiments, Figure 3 , Figure 4 As shown, the radiation receiver 142 may include: a first annular receiver 1421, the outer peripheral side of which is a first receiving end, for receiving radiation emitted by the radiation optical machine 141 to detect the first coarse screened material; a second annular receiver 1422, the outer peripheral side of which is a second receiving end, for receiving radiation emitted by the radiation optical machine 141 to detect the second coarse screened material; Fig.12 As shown, step S320, through the identification unit 140, respectively identifies the first coarse screened material and the second coarse screened material to determine the categories of the first coarse screened material and the second coarse screened material, and may also include: step S321 and step S322.

[0094] Step S321, determining a radiographic image according to the radiation emitted by the radiation optical machine 141 received by the second annular receiver 1422. The radiation optical machine 141 can emit radiation so that the radiation sweeps over the falling second coarse screened material and is finally received by the second annular receiver 1422, so that the second annular receiver can determine the radiographic image corresponding to the second coarse screened material swept by it according to the received radiation. Since the second annular receiver 1422 may receive the radiation information of the first coarse screened material and the second coarse screened material at the same time, the identification of the second coarse screened material by the second annular receiver 1422 may be affected by the first coarse screened material, so that the radiation image determined according to the radiation information received by the second annular receiver 1422 may contain part of the image of the first coarse screened material, so the data in the radiation image can be filtered through step S322. Among them, the radiation image may include information such as the position and size of each material swept by the radiation.

[0095] Step S322, based on the size of the material in the radiographic image, identify the second coarse screening material whose size is greater than the size threshold, and determine the category of the second coarse screening material. Based on the various materials captured in the radiographic image, determine the size information of each material, and preset a size threshold. Determine the material whose size information is greater than the size threshold as the second coarse screening material, identify it, and thus determine the category of the second coarse screening material. For materials whose size information is less than or equal to the size threshold, it can be determined as the first coarse screening material and not identified, thereby effectively reducing the interference of the first coarse screening material on the identification. The second annular receiver 1422 is only used to identify and determine the category of the second coarse screening material, thereby improving the accuracy of identification and sorting.

[0096] According to the material identification and sorting method provided in this embodiment, the first annular receiver 1421 and the second annular receiver 1422 can be used to receive the radiation information of the first coarse screened material and the second coarse screened material respectively through the division of labor, thereby avoiding the reduction of identification accuracy due to material overlap or interference, and improving the accuracy of material classification and sorting. By distinguishing the radiation receiving mode of the first coarse screened material and the second coarse screened material, the increase in calculation complexity caused by the mixing of radiation information of the first coarse screened material and the second coarse screened material can be reduced, computing power can be saved, the operating efficiency of the identification unit 140 can be improved, the computing load can be reduced, and the system operation can be more stable. Since the second annular receiver 1422 only identifies the second coarse screened material with a larger size, it can effectively avoid the situation where the first coarse screened material is misjudged as the second coarse screened material, thereby reducing the subsequent erroneous blowing operations caused by erroneous identification, and can effectively improve the sorting quality and accuracy.

[0097] In some embodiments, Fig.13As shown, the material identification and sorting method may also include: step S330, determining the rotation speed of the cyclone separation unit 110 according to the quantity and / or size of the first coarse screened material and the second coarse screened material. Since the rotation speed of the cyclone separation unit 110 changes, the screening standards of the first coarse screened material and the second coarse screened material will change when the material is initially screened, thereby changing the quantity and falling speed of the first coarse screened material and the second coarse screened material. When the rotation speed of the cyclone separation unit 110 is too low, it will not be able to provide sufficient centrifugal force, so that the maximum mass of the first coarse screened material that can fall from the first opening 111 is smaller. Therefore, the quantity of the first coarse screened material falling from the first opening 111 is reduced, and the quantity of the second coarse screened material falling from the second opening 112 is increased, resulting in a heavy recognition task of the recognition unit 140 for the second coarse screened material, and it is easy to cause the second coarse screened materials to overlap with each other, resulting in erroneous recognition and missed recognition by the recognition unit 140, resulting in reduced recognition accuracy and efficiency. When the rotation speed of the cyclone separation unit 110 is too high, the centrifugal force provided will be too large, so that the minimum mass of the second coarse screened material that can fall from the second opening 112 will be larger. Therefore, the amount of the first coarse screened material falling from the first opening 111 increases, and the amount of the second coarse screened material falling from the second opening 112 decreases, resulting in a heavy task of identifying the first coarse screened material by the identification unit 140, and it is easy to cause the first coarse screened materials to overlap with each other, resulting in erroneous identification and missed identification by the identification unit 140, resulting in reduced identification accuracy and efficiency. Therefore, in order to ensure that the rotation speed of the cyclone separation unit 110 is maintained within a relatively suitable range, the rotation speed of the cyclone separation unit 110 can be changed by the amount and size of the first coarse screened material and the second coarse screened material received by the first annular receiver 1421 and the second annular receiver 1422 respectively. Specifically, when the amount of the first coarse screened material is too large, or the size of the detected first coarse screened material is too large, or the amount of the second coarse screened material is too small, it can be considered that the rotation speed of the cyclone separation unit 110 is too large, so that the amount of the first coarse screened material falling from the first opening 111 increases, or serious overlapping and blocking phenomena occur, and the rotation speed of the cyclone separation unit 110 can be reduced accordingly. When the amount of the first coarse screened material is too small, or the amount of the second coarse screened material is too large, or the size of the second coarse screened material is too large, it can be considered that the rotation speed of the cyclone separation unit 110 is too small, so that the amount of the second coarse screened material falling from the second opening 112 increases, or serious overlapping and blocking phenomena occur, and the rotation speed of the cyclone separation unit 110 can be increased accordingly.

[0098] Through the material identification and sorting method provided in this embodiment, the number and size of the first coarse screen material and the second coarse screen material can be detected in real time, and the rotation speed of the cyclone sorting unit 110 can be dynamically adjusted, so that the screening process can adapt to materials of different types and characteristics, ensuring stable and reliable sorting effects. By reasonably adjusting the rotation speed of the cyclone sorting unit 110, the overlap and occlusion of the first coarse screen material and the second coarse screen material in the identification unit 140 can be reduced, avoiding misjudgment or missed judgment due to overlap, and improving the identification accuracy and detection efficiency of the identification unit 140.

[0099] In some embodiments, Fig.14 , Fig.15 As shown, step S330, determining the rotation speed of the cyclone separation unit 110 according to the quantity and size of the first coarse screened material and the second coarse screened material, may include: step S331 and / or step S332.

[0100] Step S331, if the number of the first coarse screened materials is greater than the first number threshold, and / or the size of the first coarse screened materials is greater than the first size threshold, the rotation speed of the cyclone separation unit 110 is reduced. The first number threshold can be preset, and the first number threshold can be the maximum number of the first coarse screened materials that the recognition unit 140 can simultaneously identify while ensuring the recognition accuracy. The first size threshold can also be preset, and the first size threshold can be the maximum size of the first coarse screened materials that may appear determined based on material sorting experience. When the number of the first coarse screened materials obtained by the recognition unit 140 is greater than the first number threshold, it can be considered that the rotation speed of the cyclone separation unit 110 is too high, so that the number of the first coarse screened materials falling from the first opening 111 increases, and the rotation speed of the cyclone separation unit 110 needs to be reduced to ensure that the number of the first coarse screened materials remains within a reasonable range, so that the recognition unit 140 can accurately identify each first coarse screened material. When the size of the first coarse-screened material obtained by the identification unit 140 is greater than the first size threshold, it can be considered that the rotation speed of the cyclone separation unit 110 is too high, which increases the number of first coarse-screened materials falling from the first opening 111 and causes serious mutual occlusion and overlap. It is necessary to reduce the rotation speed of the cyclone separation unit 110 to ensure that the number of first coarse-screened materials remains within a reasonable range, effectively avoid overlapping, and enable the identification unit 140 to accurately identify each first coarse-screened material.

[0101] Step S332: if the number of the second coarse screened materials is greater than the second number threshold, and / or the size of the second coarse screened materials is greater than the second size threshold, the rotation speed of the cyclone separation unit 110 is increased. The second number threshold may be preset, and the second number threshold may be the maximum number of the second coarse screened materials that the recognition unit 140 can simultaneously identify while ensuring the recognition accuracy. The second size threshold may also be preset, and the second size threshold may be the maximum size of the second coarse screened materials that may appear determined based on the material sorting experience. When the number of the second coarse screened materials obtained by the recognition unit 140 is greater than the second number threshold, it can be considered that the rotation speed of the cyclone separation unit 110 is too small, so that the number of the second coarse screened materials falling from the second opening 112 increases, and the rotation speed of the cyclone separation unit 110 needs to be increased to ensure that the number of the second coarse screened materials remains within a reasonable range, so that the recognition unit 140 can accurately identify each second coarse screened material. When the size of the second coarse-screened material obtained by the identification unit 140 is greater than the second size threshold, it can be considered that the rotation speed of the cyclone separation unit 110 is too low, which increases the number of second coarse-screened materials falling from the second opening 112 and causes serious mutual occlusion and overlap. It is necessary to increase the rotation speed of the cyclone separation unit 110 to ensure that the number of second coarse-screened materials remains within a reasonable range, effectively avoid overlapping, and enable the identification unit 140 to accurately identify each second coarse-screened material.

[0102] Through the material identification and sorting method provided by this embodiment, it is possible to monitor the quantity and / or size of the first coarse screen material and the second coarse screen material in real time, adopt an adaptive adjustment strategy, ensure that the rotation speed of the cyclone sorting unit 110 is kept within an appropriate range, ensure that the quantity of the first coarse screen material and the second coarse screen material after screening is balanced, and avoid identification errors and omissions caused by uneven material distribution or excessive quantity of any group of coarse screen materials. By adjusting the rotation speed of the cyclone sorting unit 110, the mutual occlusion caused by excessive or excessive size of the first coarse screen material or the second coarse screen material can be reduced, so that the identification unit 140 can accurately obtain the radiographic image of each material, improve the classification accuracy, and reduce the misjudgment rate. In addition, by presetting the first quantity threshold, the second quantity threshold, the first size threshold and the second size threshold, according to the detected quantity and size of the first coarse screen material and the second coarse screen material, the intelligent adaptive control of the cyclone sorting unit 110 can be realized, the adaptability of the system under different material conditions is enhanced, manual intervention is reduced, and the automation level is improved.

[0103] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0104] In the context of this application, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements.

[0105] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0106] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the embodiments of the present application.

Claims

1. A double-layer identification mechanism, applied to a sorting device, comprising: A cyclone separation unit, having a first opening on the top and a second opening on the bottom, wherein the cyclone separation unit rotates or vibrates to make a first coarse screen material fall from the first opening and a second coarse screen material fall from the second opening, wherein the weight of the first coarse screen material is less than that of the second coarse screen material; A first material discharge channel is annular and is disposed on the outer peripheral side of the cyclone separation unit, and is used to receive and discharge the first coarse screened material; A second material discharge channel is annular and disposed below the cyclone separation unit, and is used to receive and discharge the second coarse screened material; Identification unit, including: A first identification unit is disposed downstream of the first material dropping channel and is used to identify the first coarse screened material dropped from the first material dropping channel; The second identification unit is arranged downstream of the second material dropping channel, and is used for identifying the second coarse screened material dropped from the second material dropping channel.

2. The double-layer identification mechanism according to claim 1, wherein: The second identification unit comprises: A plurality of second cameras are arranged in a ring shape and are used to collect images of the second coarse screened material to identify the second coarse screened material.

3. The double-layer identification mechanism according to claim 2, wherein: The focal length of the second camera is determined according to the distance between the second camera and the falling position of the second coarse-screened material.

4. The double-layer identification mechanism according to claim 2, wherein: The identification unit includes: a ray light machine, used to emit rays to irradiate the first coarse screened material; The first identification unit includes: a radiation receiver, which is used to receive the radiation emitted by the radiation optical machine to identify the first coarsely screened material.

5. The double-layer identification mechanism according to claim 2, wherein: The first identification unit also includes: A plurality of first cameras are arranged in a ring shape and located downstream of the first material dropping channel, and are used for collecting images of the first coarse screened material to identify the first coarse screened material.

6. The double-layer identification mechanism according to claim 5, wherein: The identification unit also includes: A light source is used to emit light toward the first coarse screened material and / or the second coarse screened material.

7. The double-layer identification mechanism according to claim 6, wherein: The identification unit also includes: A half-reflecting half-mirror is arranged on the optical path of the light source, and the light is reflected by the half-reflecting half-mirror to form a first path, and the light passes through the half-reflecting half-mirror to form a second path; wherein, the light irradiates the first coarse screened material falling from the first material drop channel along the first path, and the light irradiates the second coarse screened material falling from the second material drop channel along the second path.

8. The double-layer identification mechanism according to any one of claims 4 to 6, wherein: The second camera is located below the outer peripheral side of the second blanking channel, and the length of the inner wall of the second blanking channel extending downward is greater than the length of the outer wall of the second blanking channel extending downward; or, The second camera is located below the inner circumference of the second blanking channel, and the downward extending length of the outer wall of the second blanking channel is greater than the downward extending length of the inner wall of the second blanking channel.

9. The double-layer identification mechanism according to claim 1, wherein: The identification unit comprises: A ray light machine, used for emitting rays to irradiate the first coarse screened material and the second coarse screened material; The first identification unit includes a first annular receiver for receiving the radiation emitted by the radiation optical machine to identify the first coarse screened material; The second identification unit includes a second annular receiver for receiving the radiation emitted by the radiation optical machine to identify the second coarsely screened material.

10. The double-layer identification mechanism according to claim 1, wherein: The first blanking channel comprises: A deceleration unit is used to reduce the falling speed of the first coarsely screened material in the first dropping channel.

11. The double-layer identification mechanism according to claim 1, wherein: A conical slope is provided at the inner dome of the second material dropping channel, so as to disperse the second coarse screened material falling from the second opening to different positions of the second material dropping channel.

12. The double-layer identification mechanism according to claim 1, wherein: The cyclone separation unit comprises: The inner housing is a motion mechanism, equipped with gears and a matching bearing seat, and is used for rotating through gear meshing to screen the first coarse screen material and the second coarse screen material; The outer shell is arranged outside the inner shell and is a fixed part. The outer shell is equipped with a motor to drive the inner shell to rotate.

13. A sorting device comprising: The double-layer identification mechanism according to any one of claims 1 to 12; Sorting agencies include: a first sorting unit, used for sorting the first coarsely screened material according to the recognition result of the double-layer recognition mechanism; a second sorting unit, used for sorting the second coarsely screened material according to the recognition result of the double-layer recognition mechanism; The material receiving mechanism is used to receive the materials that have completed sorting.

14. The sorting device according to claim 13, wherein: The first sorting unit includes: a first annular nozzle; the second sorting unit includes: a push plate assembly, or a second annular nozzle.

15. The sorting device according to any one of claims 13 to 14, wherein: The material receiving mechanism comprises: A first receiving unit is annular and disposed below the first material dropping channel, and is used to receive the first coarse screened material that has been sorted. The inner ring of the first receiving unit is used to receive the first material sorted by the first sorting unit, and the outer ring of the first receiving unit is used to receive the second material that has not been sorted by the sorting unit. The second receiving unit is annular and disposed below the second material dropping channel, and is used to receive the first coarse screened material that has been sorted. The inner ring of the second receiving unit is used to receive the first material that has not been sorted by the second sorting unit, and the outer ring of the second receiving unit is used to receive the second material that has been sorted by the second sorting unit. A first material receiving bin, used for receiving the first material collected by the inner circle of the first receiving unit and the inner circle of the second receiving unit; The second material receiving bin is used to receive the second material collected by the outer ring of the first receiving unit and the outer ring of the second receiving unit.

16. The sorting device according to claim 15, wherein: The first sorting unit is arranged on the outer peripheral side below the first blanking channel, and the second sorting unit is arranged on the inner peripheral side below the second blanking channel; The first sorting unit is used to sort the first coarsely screened material from outside to inside, and the height of the inner side wall of the inner circle of the first receiving unit is greater than the height of the outer side wall of the outer circle of the first receiving unit; The second sorting unit is used to sort the second coarse-screened material from inside to outside, and the height of the outer side wall of the outer circle of the second receiving unit is greater than the height of the inner side wall of the inner circle of the second receiving unit.

17. A material identification and sorting method, applied to the double-layer identification mechanism according to any one of claims 1 to 12, the material identification and sorting method comprising: The material is screened into the first coarse screened material and the second coarse screened material by the cyclone separation unit; The first coarse-screened material and the second coarse-screened material are respectively identified by the identification unit to determine the categories of the first coarse-screened material and the second coarse-screened material.

18. The material identification and sorting method according to claim 17, wherein: The material identification and sorting method further comprises: The rotation speed or vibration frequency of the cyclone separation unit is determined according to the quantity and / or size of the first coarse-screened material and the second coarse-screened material.

19. The material identification and sorting method according to claim 18, wherein: The step of determining the rotation speed or vibration frequency of the cyclone separation unit according to the quantity and size of the first coarse screened material and the second coarse screened material comprises: If the amount of the first coarse screened material is greater than a first amount threshold, and / or the size of the first coarse screened material is greater than a first size threshold, the rotation speed or vibration frequency of the cyclone separation unit is reduced; and / or, If the amount of the second coarsely screened material is greater than a second amount threshold, and / or the size of the second coarsely screened material is greater than a second size threshold, the rotation speed or vibration frequency of the cyclone separation unit is increased.

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