An ore screening detection device

Abstract

The utility model relates to ore screening technical field, concretely relates to an ore screening detection device, including frame body, crushing mechanism, sieve mechanism and back material mechanism, the crushing mechanism fixed mounting on the frame body, sieve mechanism sets up the bottom of crushing mechanism, sieve mechanism is connected with feeding hopper, and the crushing mechanism is connected with discharge hopper, back material mechanism includes two back material strips, two conveying rollers and conveying hopper belt, two conveying rollers rotary installation are between two back material strips, and conveying hopper belt is tensioned between two conveying rollers, one end of conveying hopper belt is connected with feeding hopper, and the other end of conveying hopper belt is connected with discharge hopper, still include drive mechanism, and drive mechanism with its one conveying roller is connected.

Description

Technical Field

[0001] This utility model relates to the field of ore screening technology, specifically to an ore screening and testing device. Background Technology

[0002] After mining, ore typically undergoes crushing and screening processes to obtain mineral products that meet specific particle size requirements. In this process, the ore screening device is one of the core pieces of equipment, responsible for classifying the initially crushed ore according to particle size. Traditional devices generally include a crushing mechanism and a screening mechanism arranged from top to bottom. The ore raw material first enters the crushing mechanism for grinding, and then falls to the screening mechanism below for screening. Qualified fine particles pass through the screen and are collected, while unqualified large-volume ore remains on the screen. However, due to uneven ore properties or fluctuations in crusher efficiency, some large-volume ore that has not met the crushing requirements inevitably mixes into the crushed ore. If this unqualified ore is mixed into the finished product, it will seriously affect the product quality, so it needs to be separated. Currently, the conventional method for handling this large-volume ore is: workers collect it at the end of the screening mechanism, and after it accumulates to a certain amount, it is manually fed back into the feed inlet of the device or the crushing mechanism for secondary crushing. This manual material return operation mode has obvious drawbacks: First, it interrupts the continuity of production and reduces the overall screening efficiency; second, it increases the labor intensity and labor costs of workers; third, manual feeding poses certain safety risks and may also impact the stable operation of the crushing mechanism.

[0003] Therefore, the inventors have proposed an ore screening and testing device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide an ore screening and testing device to solve the technical problem that existing devices increase labor intensity due to reliance on manual return processing of large-volume ore that does not meet standards.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An ore screening and testing device includes a frame, a crushing mechanism, a screening mechanism, and a return mechanism. The crushing mechanism is fixedly installed on the frame, and the screening mechanism is located at the bottom of the crushing mechanism. The screening mechanism is connected to a feed hopper, and the crushing mechanism is connected to a discharge hopper; The material return mechanism includes two material return bars, two conveying rollers, and a conveying bucket belt. The two conveying rollers are rotatably installed between the two material return bars, and the conveying bucket belt is tensioned between the two conveying rollers. One end of the conveying bucket belt is connected to the feed hopper, and the other end of the conveying bucket belt is connected to the discharge hopper. It also includes a drive mechanism connected to one of the conveying rollers; The screening mechanism includes a frame, a first screening plate, a second screening plate, and a bottom plate. The first screening plate is connected to a first discharge port, which is connected to a feed hopper. The second screening plate is connected to a second discharge port, and the bottom plate is connected to a third discharge port. It also includes a testing mechanism, which includes a conveyor, a frame and a screening and identification instrument. The screening and identification instrument is installed on the frame and the conveyor is located below the screening and identification instrument. One end of the conveyor is connected to the second discharge interface.

[0006] Furthermore, the conveyor belt includes a first conveyor belt and a plurality of conveyor buckets, the first conveyor belt being tensioned between two conveyor rollers, and each conveyor bucket being evenly distributed on the first conveyor belt.

[0007] Furthermore, the crushing mechanism includes a crushing box, a first crushing roller and a second crushing roller rotatably disposed inside the crushing box, a feed inlet at the top of the crushing box, a discharge outlet at the bottom of the crushing box, a first driven pulley connected to one end of the first crushing roller, and a second driven pulley connected to one end of the second crushing roller.

[0008] Furthermore, an air blowing mechanism is provided below the crushing box. The air blowing mechanism includes an air blowing housing and an air blowing fan blade rotatably disposed within the air blowing housing. A third driven pulley is provided on one side of the air blowing fan blade.

[0009] Furthermore, two first connecting blocks are symmetrically fixed on the frame, and a second connecting block is movably connected to the two first connecting blocks. A connecting rod is provided between the two second connecting blocks, and the frame is erected on the connecting rod.

[0010] Furthermore, a rotating shaft is rotatably mounted on the frame, and a fourth driven pulley and an eccentric wheel are coaxially and fixedly connected on the rotating shaft. A push rod is rotatably mounted on the eccentric wheel, and a connecting seat is hinged to the push rod. The connecting seat is fixedly installed at the bottom of the frame.

[0011] Furthermore, the drive mechanism includes a first motor and a second motor. The output shaft of the first motor is connected to a first driving pulley and a second driving pulley. A first belt is tensioned between the first driving pulley and the first driven pulley, and a second belt is tensioned between the second driving pulley and the third driven pulley. A fifth driven pulley is coaxially fixedly connected to the first driven pulley, and a third belt is tensioned between the fifth driven pulley and the fourth driven pulley.

[0012] Furthermore, the output shaft of the second motor is connected to a third driving pulley and a fourth driving pulley, and a fourth belt is tensioned between the third driving pulley and the second driven pulley; A sixth driven pulley is provided on one side of the conveying roller, and the sixth driven pulley is connected to the fourth driving pulley.

[0013] The beneficial effects of this utility model are: This invention establishes an automated material circulation path between the screening and crushing mechanisms by setting up a return mechanism composed of conveyor rollers and conveyor belts. It can continuously and in real time transport substandard large-volume ore directly back to the crushing mechanism for secondary crushing, completely replacing the traditional operation mode that relies on manual timed collection and return of materials. This not only significantly improves the continuity of the ore screening process and the overall production efficiency, realizing a closed-loop cycle of crushing, screening, return, and re-crushing, but also effectively eliminates interruptions caused by manual operation, greatly reducing the labor intensity and safety risks of workers. At the same time, it reduces the impact on the crushing mechanism caused by uneven manual feeding, which is conducive to the stable operation of the equipment.

[0014] This invention utilizes a first and second motor to synchronously drive four functional modules: crushing, air blowing, screening vibration, and return material conveying. This achieves a high degree of power source integration and efficient allocation, simplifying the overall structure and reducing manufacturing costs and energy consumption. Furthermore, the screening mechanism employs inclined first and second screening plates linked to the detection mechanism. This not only enables precise ore grading to ensure the particle size quality of the final product but also effectively avoids over-crushing of qualified particles through an automatic return material mechanism. It selectively processes large, unqualified ores, thereby improving screening accuracy and product quality consistency. The design is compact and highly practical.

[0015] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0016] Figure 1 The overall structure of the ore screening and testing device of this utility model in one direction (view) Figure 1 ) Schematic diagram; Figure 2 This is another view of the structure of the ore screening and testing device of this utility model (view). Figure 2 ) Schematic diagram; Figure 3 The overall isometric structure (view) of the ore screening and testing device of this utility model Figure 3) Schematic diagram; Figure 4 This is a partial structural diagram of the ore screening and testing device of this utility model; Figure 5 This is a partial cross-sectional view of the ore screening and testing device of this utility model; Figure 6 This is a partial structural diagram of the ore screening and testing device of this utility model, which includes a frame and a screening mechanism. Figure 7 This is a schematic diagram of the material return mechanism in the ore screening and testing device of this utility model; Figure 8 For the ore screening and testing device of this utility model Figure 7 A schematic diagram of the cross-sectional structure; Figure 9 This is a schematic diagram of the screening mechanism in the ore screening and testing device of this utility model; Figure 10 This is a cross-sectional view of the screening mechanism in the ore screening and testing device of this utility model. Figure 11 In the ore screening and testing device of this utility model Figure 6 A schematic diagram of part A of the structure.

[0017] The components include: frame 1, first connecting block 11, second connecting block 12, connecting rod 13, fourth driven pulley 14, eccentric wheel 15, push rod 16, connecting seat 17, crushing mechanism 2, crushing box 21, first crushing roller 22, second crushing roller 23, feed inlet 24, discharge outlet 25, first driven pulley 26, second driven pulley 27, screening mechanism 3, frame 31, first screening plate 32, second screening plate 33, bottom plate 34, first discharge interface 35, second discharge interface 36, third discharge interface 37, and return mechanism 4. 41. Return bar, 42. Conveying roller, 43. Conveying bucket belt, 431. First conveyor belt, 432. Conveying bucket, 5. Feed hopper, 6. Discharge hopper, 7. Air blowing mechanism, 71. Air blowing housing, 72. Third driven pulley, 73. First motor, 81. Second motor, 82. First driving pulley, 83. Second driving pulley, 84. First belt, 85. Second belt, 86. Fifth driven pulley, 87. Third belt, 88. Fourth belt, 821. Sixth driven pulley, 89. Detection mechanism, 91. Conveyor, 92. Stand, 93. Screening and identification instrument. Detailed Implementation

[0018] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] This embodiment proposes an ore screening and detection device, such as... Figures 1 to 11 As shown, the device includes a frame 1, a crushing mechanism 2, a screening mechanism 3, and a return mechanism 4. The crushing mechanism 2 is fixedly installed on the frame 1, and the screening mechanism 3 is located at the bottom of the crushing mechanism 2. The screening mechanism 3 is connected to a feed hopper 5, and the crushing mechanism 2 is connected to a discharge hopper 6. The ore that is not fully crushed or is missed by the crushing mechanism 2 will fall to the screening mechanism 3. Large-volume ore on the screening mechanism 3 will enter the feed hopper 5 and then enter the discharge hopper 6 through the return mechanism 4. The large-volume ore in the discharge hopper 6 will enter the inlet 24 of the crushing box 21 for secondary crushing.

[0021] The return material mechanism 4 includes two return material bars 41, two conveyor rollers 42, and a conveyor belt 43. The two conveyor rollers 42 are rotatably mounted between the two return material bars 41, and the conveyor belt 43 is tensioned between the two conveyor rollers 42. Figure 2 As shown, the bottom end of the conveyor belt 43 is connected to the feed hopper 5, and the top end of the conveyor belt 43 is connected to the discharge hopper 6; Figure 8 As shown, the conveyor belt 43 includes a first conveyor belt 431 and a plurality of conveyor buckets 432. The first conveyor belt 431 is tensioned between two conveyor rollers 42, and each conveyor bucket 432 is evenly distributed on the first conveyor belt 431.

[0022] In this embodiment, the ore crushed by the crushing mechanism 2 falls into the screening mechanism 3. Qualified fine-particle ore is screened, while substandard large-volume ore enters the feed hopper 5 through the screening mechanism 3. The two conveying rollers 42 of the return material mechanism 4 rotate under the drive mechanism, driving the tensioned conveyor belt 43 (composed of the first conveyor belt 431 and the evenly distributed conveyor hoppers 432) to operate continuously, conveying the large-volume ore in the feed hopper 5 from the bottom end to the top end of the conveyor belt 43, and finally guiding it into the discharge hopper 6 and re-entering the feed inlet 24 of the crushing mechanism 2 for secondary crushing, forming a continuous return path that does not require manual intervention, effectively maintaining production continuity and reducing labor costs and safety risks.

[0023] In a preferred embodiment, the crushing mechanism 2 includes a crushing box 21, a first crushing roller 22 and a second crushing roller 23 rotatably disposed within the crushing box 21. The top of the crushing box 21 has an inlet 24, and the bottom of the crushing box 21 has an outlet 25. One end of the first crushing roller 22 is connected to a first driven pulley 26, and one end of the second crushing roller 23 is connected to a second driven pulley 27. An air blowing mechanism 7 is disposed below the crushing box 21. The air blowing mechanism 7 includes an air blowing housing 71 and air blowing blades 72 rotatably disposed within the air blowing housing 71. A third driven pulley 73 is disposed on one side of the air blowing blades 72.

[0024] In this embodiment, after the ore enters the crushing box 21 through the feed port 24, the first crushing roller 22 and the second crushing roller 23 rotate under the drive mechanism to crush the ore. The crushed ore is discharged from the discharge port 25 to the lower screening mechanism 3. The air blowing mechanism 7 is located on one side of the bottom of the crushing box 21. The air blowing fan blade 72 is driven to rotate by the third driven pulley 73 and is used to perform airflow-assisted separation of the crushed ore. Finally, in cooperation with the return mechanism 4, the automatic return and re-crushing closed loop of the large-volume ore that does not meet the standard is realized.

[0025] In a preferred embodiment, the screening mechanism 3 includes a frame 31, a first screening plate 32, a second screening plate 33, and a bottom plate 34. The first screening plate 32 is connected to a first discharge port 35, which is connected to a feed hopper 5. The second screening plate 33 is connected to a second discharge port 36, and the bottom plate 34 is connected to a third discharge port 37. The diameter of the screen holes of the first screening plate 32 is larger than that of the screen holes of the second screening plate 33. The first screening plate 32, the second screening plate 33, and the bottom plate 34 are inclinedly arranged within the frame 31. When ore falls into the first screening plate 32 within the frame 31, large-volume ore is intercepted because its particle size is larger than the screen openings of the first screening plate 32. It then directly enters the feed hopper 5 through the first discharge port 35 and is conveyed to the crushing mechanism 2 for secondary crushing via the return material mechanism 4. Smaller-volume ore penetrates the first screening plate 32 and reaches the second screening plate 33. If its particle size is still larger than the aperture of the second screening plate, it is intercepted and discharged as an intermediate particle size product to the detection mechanism 9 via the second discharge port 36. The smallest particle size ore continuously penetrates the first screening plate 32 and the second screening plate 33 before falling into the bottom plate 34 and finally being collected as a qualified fine particle product via the third discharge port 37. The inclined angle and vibration design promote ore flow, and the direct connection between the first discharge port 35 and the feed hopper 5 ensures that large-volume ore that does not meet the standards is quickly returned to the crushing process, forming a closed-loop path of crushing, screening, return material, and re-crushing. This ensures grading accuracy, reduces manual intervention, and improves overall screening efficiency and product quality stability.

[0026] In a preferred embodiment, two first connecting blocks 11 are symmetrically fixed on the frame 1, and second connecting blocks 12 are hinged to the two first connecting blocks 11. A connecting rod 13 is provided between the two second connecting blocks 12, and the frame 31 is erected on the connecting rod 13. A rotating shaft is rotatably provided on the frame 1, and a fourth driven pulley 14 and an eccentric wheel 15 are coaxially fixedly connected to the rotating shaft. A bearing is provided on the eccentric wheel 15, and a connector is provided on the bearing. A push rod 16 is connected to the connector, and a connecting seat 17 is hinged to the push rod 16. The connecting seat 17 is fixedly installed at the bottom of the frame 31.

[0027] Of course, in one possible implementation, the push rod 16 can also be connected to the eccentric wheel 15 in a hinged manner.

[0028] In this embodiment, when the drive mechanism drives the fourth driven pulley 14 to rotate, the fourth driven pulley 14 drives the rotating shaft and the eccentric wheel 15 to rotate synchronously. The eccentric structure of the eccentric wheel 15 causes the push rod 16 to generate reciprocating linear motion. The push rod 16 pushes the bottom of the frame 31 through the hinged connecting seat 17, causing the frame 31 to generate periodic vibration. This vibration can accelerate the flow and classification of ore on the first screening plate 32, the second screening plate 33 and the bottom plate 34, prevent ore from accumulating and clogging the screen holes, and at the same time improve the penetration efficiency of fine particles and the rapid separation of large volume ore. Finally, through cooperation with the return material mechanism 4, the automatic return and reprocessing of substandard ore is realized, ensuring the continuous and efficient operation of the screening process.

[0029] It also includes a drive mechanism, which includes a first motor 81 and a second motor 82. The output shaft of the first motor 81 is connected to a first driving pulley 83 and a second driving pulley 84. A first belt 85 is tensioned between the first driving pulley 83 and the first driven pulley 26. A second belt 86 is tensioned between the second driving pulley 84 and the third driven pulley 73. A fifth driven pulley 87 is coaxially fixedly connected to the first driven pulley 26. A third belt 88 is tensioned between the fifth driven pulley 87 and the fourth driven pulley 14.

[0030] The output shaft of the second motor 82 is connected to the third driving pulley and the fourth driving pulley. The fourth belt 821 is tensioned between the third driving pulley and the second driven pulley 27. A sixth driven pulley 89 is provided on one side of the conveying roller 42, and the sixth driven pulley 89 is connected to the fourth driving pulley.

[0031] In this example, the output shaft of the first motor 81 connects the first drive pulley 83 and the second drive pulley 84. The first drive pulley 83 drives the first driven pulley 26 of the first crushing roller 22 of the crushing mechanism 2 through the first belt 85. At the same time, the fifth driven pulley 87, which is coaxially fixed to the first driven pulley 26, drives the fourth driven pulley 14 on the rotating shaft through the third belt 88, so that the rotating shaft drives the eccentric wheel 15 to rotate. The push rod 16 reciprocates and pushes the frame 31 of the screening mechanism 3 to vibrate, accelerating the ore classification. The second drive pulley 84 drives the third driven pulley 73 of the air blowing mechanism 7 through the second belt 86, so that the air blowing fan blades 72 rotate to generate airflow. The output shaft of the second motor 82 connects the third and fourth drive pulleys. The third drive pulley drives the second driven pulley 27 of the second crushing roller 23 via the fourth belt 821, realizing the crushing of ore by the double crushing rollers. The fourth drive pulley drives the sixth driven pulley 89 on one side of the conveying roller 42 via the belt, so that the conveying bucket belt 43 runs continuously, transporting the large volume ore that enters the feed hopper 5 through the first discharge port 35 of the screening mechanism 3 to the discharge hopper 6, and reintroducing it into the feed port 24 of the crushing mechanism 2 for secondary crushing. By automating the return process, manual intervention is reduced, production continuity is improved, and safety risks are reduced, ultimately achieving efficient and stable operation of the ore processing flow.

[0032] As a preferred embodiment, such as Figure 2 and Figure 3 As shown, it also includes a testing mechanism 9, which includes a conveyor 91, a frame 92 and a screening and identification instrument 93. The screening and identification instrument 93 is mounted on the frame 92, and the conveyor 91 is located below the screening and identification instrument 93. One end of the conveyor 91 is connected to the second discharge interface 36.

[0033] The intermediate-sized ore discharged from the second screening plate 33 flows into the conveyor 91 through the second discharge port 36. The conveyor 91 smoothly transports the ore to below the screening and identification instrument 93. The screening and identification instrument 93, which is fixedly supported by the frame 92, uses existing components and is a structure well-known to those skilled in the art. Specifically, it can be implemented based on existing technologies such as machine vision-based particle size analysis systems, laser scanning diameter gauges, or image recognition algorithms to perform real-time scanning and detection of the ore on the conveyor 91 to determine whether the particle size meets the preset standard.

[0034] This invention establishes an automated material circulation path between the screening and crushing mechanisms by setting up a return mechanism 4 composed of conveyor rollers 42 and conveyor belts 43. This allows for the real-time and continuous return of substandard large-volume ore from the screening process directly to the crushing mechanism 2 for secondary crushing. This completely replaces the traditional operation mode that relies on manual timed collection and return of materials. It significantly improves the continuity of the ore screening process and overall production efficiency, achieving a closed-loop cycle of crushing, screening, return, and re-crushing. It also effectively eliminates interruptions caused by manual operation, greatly reducing the labor intensity and safety risks for workers, while minimizing the impact of uneven manual feeding. The impact on the crushing mechanism 2 is beneficial to the stable operation of the equipment. Simultaneously, the first motor 81 and the second motor 82 synchronously drive the four functional modules of crushing, air blowing, screening vibration, and return material conveying, achieving a high degree of power source integration and efficient distribution. Furthermore, the screening mechanism employs an inclined first screening plate 32 and a second screening plate 33, linked with the detection mechanism 9. This not only accurately classifies the ore to ensure the particle size quality of the final product, but also effectively avoids the over-crushing of qualified particles through an automatic return material mechanism, selectively processing only unqualified large-volume ores. This improves screening accuracy and product quality consistency, resulting in a compact structure and strong practicality. The above embodiments are merely preferred embodiments for fully illustrating this utility model, and the scope of protection of this utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this utility model are all within the scope of protection of this utility model.

Claims

1. An ore screening and testing device, characterized in that, include: The frame (1), crushing mechanism (2), screening mechanism (3) and return mechanism (4) are provided. The crushing mechanism (2) is fixedly installed on the frame (1), and the screening mechanism (3) is located at the bottom of the crushing mechanism (2). The screening mechanism (3) is connected to the feed hopper (5), and the crushing mechanism (2) is connected to the discharge hopper (6). The material return mechanism (4) includes two material return bars (41), two conveying rollers (42) and a conveying bucket belt (43). The two conveying rollers (42) are rotatably installed between the two material return bars (41). The conveying bucket belt (43) is tensioned between the two conveying rollers (42). One end of the conveying bucket belt (43) is connected to the feed hopper (5), and the other end of the conveying bucket belt (43) is connected to the discharge hopper (6). It also includes a drive mechanism connected to one of the conveying rollers (42) described above; The screening mechanism (3) includes a frame (31), a first screening plate (32), a second screening plate (33), and a bottom plate (34). The first screening plate (32) is connected to a first discharge port (35), which is connected to a feed hopper (5). The second screening plate (33) is connected to a second discharge port (36), and the bottom plate (34) is connected to a third discharge port (37). It also includes a testing mechanism (9), which includes a conveyor (91), a frame (92) and a screening and identification instrument (93). The screening and identification instrument (93) is installed on the frame (92), and the conveyor (91) is located below the screening and identification instrument (93). One end of the conveyor (91) is connected to the second discharge port (36).

2. The ore screening and detection device according to claim 1, characterized in that: The conveyor belt (43) includes a first conveyor belt (431) and a plurality of conveyor buckets (432). The first conveyor belt (431) is tensioned between two conveyor rollers (42), and each conveyor bucket (432) is evenly distributed on the first conveyor belt (431).

3. The ore screening and detection device according to claim 2, characterized in that: The crushing mechanism (2) includes a crushing box (21), a first crushing roller (22) and a second crushing roller (23) rotatably disposed in the crushing box (21). The top of the crushing box (21) is provided with a feed inlet (24), and the bottom of the crushing box (21) is provided with a discharge outlet (25). One end of the first crushing roller (22) is connected to a first driven pulley (26), and one end of the second crushing roller (23) is connected to a second driven pulley (27).

4. The ore screening and detection device according to claim 3, characterized in that: The crushing box (21) is provided with an air blowing mechanism (7) below it. The air blowing mechanism (7) includes an air blowing housing (71) and an air blowing fan (72) rotatably disposed in the air blowing housing (71). A third driven pulley (73) is provided on one side of the air blowing fan (72).

5. The ore screening and detection device according to claim 4, characterized in that: Two first connecting blocks (11) are symmetrically fixed on the frame (1), and a second connecting block (12) is movably connected to the two first connecting blocks (11). A connecting rod (13) is provided between the two second connecting blocks (12), and the frame (31) is erected on the connecting rod (13).

6. The ore screening and detection device according to claim 5, characterized in that: A rotating shaft is rotatably mounted on the frame (1). A fourth driven pulley (14) and an eccentric wheel (15) are coaxially fixedly connected on the rotating shaft. A push rod (16) is rotatably mounted on the eccentric wheel (15). A connecting seat (17) is hinged to the push rod (16). The connecting seat (17) is fixedly mounted on the bottom of the frame (31).

7. The ore screening and detection device according to claim 6, characterized in that: The drive mechanism includes a first motor (81) and a second motor (82). The output shaft of the first motor (81) is connected to a first drive pulley (83) and a second drive pulley (84). A first belt (85) is tensioned between the first drive pulley (83) and the first driven pulley (26). A second belt (86) is tensioned between the second drive pulley (84) and the third driven pulley (73). A fifth driven pulley (87) is coaxially fixedly connected to the first driven pulley (26). A third belt (88) is tensioned between the fifth driven pulley (87) and the fourth driven pulley (14).

8. The ore screening and detection device according to claim 7, characterized in that: The output shaft of the second motor (82) is connected to a third driving pulley and a fourth driving pulley, and a fourth belt (821) is tensioned between the third driving pulley and the second driven pulley (27). A sixth driven pulley (89) is provided on one side of the conveying roller (42), and the sixth driven pulley (89) is connected to the fourth driving pulley.

Images