A pellet strength detection device

Abstract

The present application belongs to the technical field of pellet detection, and particularly relates to a pellet strength detection device. Aiming at the centralized storage of various pellets and the chaotic distribution, errors are prone to occur when a worker records the detection results. The present application proposes the following scheme, which comprises a detection bin. A fixing port is formed in the top of the detection bin. The inner wall of the fixing port is fixedly connected with a to-be-detected frame. The outer wall of the to-be-detected frame is provided with a connecting port. The inner wall of the connecting port is fixedly connected with a connecting pipe. The inside of the to-be-detected frame is fixedly connected with a cambered plate. The bottom of the to-be-detected frame is fixedly connected with a motor one. The output shaft of the motor one is connected with a mounting plate through a coupling. The mounting plate is located above the cambered plate. The pellet strength detection device disclosed by the present application has the effect of classification and limiting. The chaotic distribution of the pellets in the to-be-detected frame can be avoided during detection, so as to ensure the accuracy of the detection results when a worker records.

Description

Technical Field

[0001] This invention relates to the field of pellet testing technology, and more particularly to a pellet strength testing device. Background Technology

[0002] The compressive strength of iron ore pellets refers to the maximum crushing load that pellets can withstand, and it is an indicator of the mechanical strength of the pellets. Before and after entering the blast furnace or direct reduction furnace, iron ore pellets undergo multiple loading, unloading, transfer, stacking, and movement, enduring various severe mechanical actions such as collision, impact, compression, and friction. Under these mechanical actions, some pellets will break, producing small pieces and powder, thus affecting furnace operation and production indicators. The compressive strength of the pellets directly affects the amount of small pieces and powder in the furnace. High compressive strength of the pellets results in less powder in the furnace, better permeability of the feed layer, which is beneficial to the smooth operation of the furnace, can increase furnace output, reduce industrial dust, and improve the environment.

[0003] When conducting strength testing on pellets, the pellets are mostly placed inside the testing frame to facilitate strength testing. However, when conducting various types of pellet testing, the distribution of pellets inside the testing frame becomes chaotic, which can easily lead to errors in the recording of test results by the staff. Summary of the Invention

[0004] This invention discloses a pellet strength testing device, which aims to solve the technical problem in the background art where, when conducting pellet strength testing, most pellets are concentrated inside the testing frame for easy strength testing. However, when conducting various types of pellet testing, the distribution of pellets inside the testing frame is chaotic, which can easily lead to errors in the recording of test results by the staff.

[0005] This invention proposes a pellet strength testing device, comprising a testing chamber. A fixing opening is provided at the top of the testing chamber, and a frame to be tested is fixedly connected to the inner wall of the fixing opening. A connection opening is provided on the outer wall of the frame to be tested, and a connecting pipe is fixedly connected to the inner wall of the connection opening. An arc plate is fixedly connected inside the frame to be tested, and a motor is fixedly connected to the bottom of the frame. The output shaft of the motor is connected to a mounting plate via a coupling. The mounting plate is located above the arc plate, and multiple mounting openings are equidistantly provided on the outer wall of the mounting plate. The same mounting rod is fixedly connected to the inner walls of both sides of each of the multiple mounting openings, and the outer walls of the multiple mounting rods are also fixedly connected to the same mounting rod. The device is equipped with multiple placement compartments. Each of the inner walls of the multiple placement compartments is fixedly connected to a second connecting rod. Each of the outer walls of the multiple second connecting rods is movably connected to a limit plate. Each of the inner walls of the multiple limit plates is fixedly connected to a limit clamp, which is located inside each of the multiple placement compartments. Each of the tops of the multiple limit plates is fixedly connected to a connector. Each of the inner walls of the connector is movably connected to a connecting rod. One end of each connecting rod is movably connected to a first connecting rod. Both ends of each first connecting rod are fixedly connected to the same lifting plate. An electric lifting rod is fixedly connected to the top of the mounting plate, and the output end of the electric lifting rod is fixedly connected to the bottom of the lifting plate.

[0006] Equipped with a motor, placement chambers, limiting plates, connecting rods, connectors, limiting clips, an electric lifting rod, a mounting plate, and a lifting plate, this system allows for the separate placement of various types of ore pellets with different contents through multiple placement chambers. The limiting plates restrict the distribution of ore pellets within the testing frame, preventing disorder and ensuring accurate recording of test results. During output testing, the limiting clips further restrict the output of individual pellets, facilitating recording and ensuring accurate results. The electric lifting rod and connecting rod provide convenient placement and operation for workers.

[0007] In a preferred embodiment, a mounting frame is fixedly connected to one inner wall of the testing chamber, a limiting frame is fixedly connected to the top of the mounting frame, one end of a connecting pipe is fixedly connected to the inside of the limiting frame, and a pressure pump is fixedly connected to the top of the inner wall of the testing chamber. A pressure plate is fixedly connected to the output end of the pressure pump, and the pressure plate is located inside the limiting frame. Multiple openings are equidistantly provided on the outer wall of the limiting frame. The same fixing rod is fixedly connected to the inner walls on both sides of the multiple openings. Buffer plates are movably connected to the outer walls of the multiple fixing rods, and the multiple buffer plates are located inside the limiting frame. Rubber pads are fixedly connected to the top of the multiple buffer plates. Torsion springs are sleeved on the outer walls of the multiple fixing rods. One end of each torsion spring is fixedly connected to one inner wall of one of the multiple openings, and the other end of each torsion spring is fixedly connected to one outer wall of one of the multiple buffer plates.

[0008] By incorporating a limit frame, fixing rod, buffer plate, rubber pad, torsion spring, pressure pump, and pressure plate, the pellets enter the limit frame and come into contact with the rubber pad. The rubber pad provides cushioning protection, preventing direct contact between the pellets and the buffer plate. Simultaneously, the torsion spring provides an upward rotational force as the buffer plate rotates, further enhancing the cushioning effect on the pellets. This allows the pellets to land smoothly above the mounting frame, preventing them from falling directly onto the frame and breaking, thus ensuring the accuracy of the test results. During testing, the buffer plate rotates without obstructing the pressure plate, ensuring the device's usability.

[0009] In a preferred embodiment, a dust collection box is fixedly connected to one side of the testing chamber, and a vacuum pump is fixedly connected to the outer wall of one side of the dust collection box. The vacuum pump is located inside the testing chamber, and a connecting pipe is fixedly connected to the input end of the vacuum pump. Both input ends of the connecting pipe are fixedly connected to annular vacuum chambers, and multiple suction ports are equidistantly opened on the inner walls of the two annular vacuum chambers. A limiting seat is fixedly connected to the bottom of the inner wall of the testing chamber, and a recycling box is movably connected to the inner wall of the limiting seat. A handle is fixedly connected to the outer wall of one side of the recycling box. Both annular vacuum chambers are located between the recycling box and the frame to be tested. Three through cleaning holes are opened on the top of the curved plate. Cleaning brushes are fixedly connected to the outer walls of the multiple placement chambers, and the multiple cleaning brushes are in contact with the top of the curved plate. A transparent protective plate is movably connected to one side of the outer wall of the testing chamber. Multiple interconnected locking holes are opened on one side of the outer wall of the transparent protective plate and one side of the outer wall of the testing chamber, and locking bolts are movably connected to the inner walls of the multiple locking holes.

[0010] Equipped with a dust collection box, suction port, annular suction chamber, cleaning hole, cleaning brush, recycling bin, suction pump, and transparent protective plate, the device effectively removes small debris and dust during use, maintaining the cleanliness of the testing chamber. The annular suction chamber and suction pump also prevent small debris and dust from being sucked in when staff handle the recycling bin. Furthermore, the transparent protective plate prevents broken ore pellets from being ejected during testing, thus improving the safety and practicality of the device.

[0011] In a preferred embodiment, two fixing plates are fixedly connected to the inner walls of both sides of the mounting frame. Three shafts are movably connected to the inner walls of opposite sides of the two fixing plates. A transmission roller is fixedly connected to the outer wall of each of the two shafts, and the outer walls of the two transmission rollers are provided with the same conveyor belt. A second motor is fixedly connected to the outer wall of one of the fixing plates. The output shaft of the second motor is fixedly connected to one end of one of the shafts via a coupling. Multiple cleaning ports are provided at the top of the mounting frame. Driven rollers are fixedly connected to the outer walls of both shafts, and the outer walls of the two driven rollers are provided with the same transmission belt. One of the rotating shafts... A drive gear is fixedly connected to the outer wall of the mounting frame, and a support plate is fixedly connected to the top of the inner wall of the mounting frame. A mounting component is movably connected to one side of the outer wall of the support plate, and an electric telescopic rod is fixedly connected to one side of the outer wall of the mounting component. A driven gear is fixedly connected to the output end of the electric telescopic rod, and the driven gear meshes with the drive gear. The same lead screw is movably connected to both sides of the outer wall of the mounting frame. A gear one is fixedly connected to one end of the lead screw, and a gear two is fixedly connected to one side of the outer wall of the mounting component. Gear one and gear two mesh with each other, and two fixing components are movably connected to the outer wall of the lead screw. One side of the outer wall of each fixing component is in contact with the inner wall of the limiting frame.

[0012] Equipped with a drive motor, shaft, conveyor belt, transmission belt, drive gear, driven gear, fixing components, lead screw, gear one, and gear two, the device automatically cleans the crushed pellets after testing via the drive motor and conveyor belt, facilitating subsequent testing. During the conveying of the crushed pellets, an electric telescopic rod controls the rotation of the lead screw, thus securing the pellets during testing to prevent movement and ensure the device's testing effectiveness and practicality. Furthermore, it eliminates the need for manual cleaning of the crushed pellets, reducing the workload of staff.

[0013] As can be seen from the above, the pellet strength testing device provided by the present invention has the effect of classification and limiting, which can avoid the chaotic distribution of pellets inside the test frame during testing, so as to ensure the accuracy of the test results when the staff records them. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a pellet strength testing device proposed in this invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the testing chamber of a pellet strength testing device proposed in this invention;

[0016] Figure 3 This is a schematic diagram of the combined structure of a limiting plate and an arc plate in a pellet strength testing device proposed in this invention.

[0017] Figure 4This is a schematic diagram of the combined structure of the placement chamber and mounting plate of the pellet strength testing device proposed in this invention;

[0018] Figure 5 This is a schematic diagram of the dust inlet structure of a pellet strength testing device proposed in this invention;

[0019] Figure 6 This is a schematic diagram of the combined structure of the pressure plate and fixing plate of the pellet strength testing device proposed in this invention;

[0020] Figure 7 This is a schematic diagram of the buffer plate structure of a pellet strength testing device proposed in this invention;

[0021] Figure 8 This is a schematic diagram of the combined structure of the conveyor belt and fixing components of a pellet strength testing device proposed in this invention.

[0022] In the diagram: 1. Testing chamber; 2. Frame to be tested; 3. Dust collection box; 4. Transparent protective plate; 5. Locking bolt; 6. Locking hole; 7. Limiting frame; 8. Connecting pipe; 9. Motor 1; 10. Circular dust collection chamber; 11. Connecting pipe; 12. Recycling box; 13. Handle; 14. Limiting seat; 15. Limiting plate; 16. Cleaning hole; 17. Curved plate; 18. Connection port; 19. Mounting plate; 20. Electric lifting rod; 21. Lifting plate; 22. Connecting rod 1; 23. Connecting rod; 24. Connecting piece; 25. Limiting clip; 26. Placement chamber; 27. 28. Connecting rod 2; 29. ​​Cleaning brush; 30. Mounting rod; 31. Dust pump; 32. Dust suction port; 33. Fixing plate; 34. Motor 2; 35. Mounting bracket; 36. Pressure plate; 37. Pressure air pump; 38. Fixing rod; 39. Torsion spring; 40. Buffer plate; 41. Rubber pad; 42. Conveyor belt; 43. Lead screw; 44. Fixing component; 45. Drive gear; 46. Driven gear; 47. Electric telescopic rod; 48. Mounting component; 49. Gear 1; 50. Support plate; 51. Gear 2; 52. Transmission belt; 53. Shaft; 54. Transmission roller. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] The pellet strength testing device disclosed in this invention is mainly used in scenarios where various pellets are stored in a chaotic manner, which can easily lead to errors in the recording of test results by staff.

[0025] Reference Figure 1-8A pellet strength testing device includes a testing chamber 1. A fixing opening is provided at the top of the testing chamber 1. A test frame 2 is fixedly connected to the inner wall of the fixing opening. A connection opening 18 is provided on the outer wall of the test frame 2. A connecting pipe 8 is fixedly connected to the inner wall of the connection opening 18. An arc plate 17 is fixedly connected inside the test frame 2. A motor 9 is fixedly connected to the bottom of the test frame 2. The output shaft of the motor 9 is connected to a mounting plate 19 via a coupling. The mounting plate 19 is located above the arc plate 17. Multiple mounting openings are equidistantly provided on the outer wall of the mounting plate 19. The same mounting rod 29 is fixedly connected to the inner walls of both sides of each of the multiple mounting openings. A placement chamber 26 is rotatably connected to the outer wall of each of the multiple mounting rods 29. Each of the multiple placement compartments 26 has a connecting rod 27 fixedly connected to its inner wall, and a limiting plate 15 is rotatably connected to the outer wall of each of the multiple connecting rods 27. A limiting clip 25 is fixedly connected to the inner wall of each of the multiple limiting plates 15, and the multiple limiting clips 25 are located inside the multiple placement compartments 26 respectively. A connector 24 is fixedly connected to the top of each of the multiple limiting plates 15. A connecting rod 23 is rotatably connected to the inner wall of each of the multiple connectors 24, and a connecting rod 22 is rotatably connected to one end of each of the multiple connecting rods 23. The same lifting plate 21 is fixedly connected to both ends of the multiple connecting rods 22, and an electric lifting rod 20 is fixedly connected to the top of the mounting plate 19. The output end of the electric lifting rod 20 is fixedly connected to the bottom of the lifting plate 21.

[0026] Specifically, when placing pellets, the electric lifting rod 20 is activated, which drives the lifting plate 21 to rise and, through the connecting rod 23, drives the limiting plate 15 to rotate, causing the limiting plate 15 to open. Workers place different types of pellets into the placement chamber 26. At this time, the electric lifting rod 20 drives the lifting plate 21 to fall, causing the limiting plate 15 and the limiting clip 25 to limit the pellets inside the placement chamber 26. When the pellets are being conveyed and inspected, the motor 9 is activated, which drives the mounting plate 19 and the placement chamber 26 to rotate. When the placement chamber 26 moves to the area where the arc plate 17 has an arc, the placement chamber 26 will descend due to gravity. At this time, the positions of the limiting plate 15 and the connecting rod 23 remain unchanged, thereby causing the pellets to move out of the placement chamber 26. After the placement chamber 26 moves out of the arc area, it resets.

[0027] In specific application scenarios, multiple placement bins 26 can be used to place pellets with different contents separately, and the limiting plate 15 can limit the pellets to avoid chaotic distribution inside the test frame 2, so as to ensure the accuracy of the test results when the staff records them. At the same time, during output testing, the limiting clip 25 can limit the pellets to ensure that only a single pellet can be output for testing, so as to facilitate the staff to record and ensure the accuracy of the test results. The electric lifting rod 20 and connecting rod 23 make it convenient for the staff to place the pellets and are easy to operate.

[0028] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 A mounting frame 34 is fixedly connected to one inner wall of the detection chamber 1. A limiting frame 7 is fixedly connected to the top of the mounting frame 34. One end of the connecting pipe 8 is fixedly connected to the inside of the limiting frame 7. A pressure pump 36 is fixedly connected to the top of the inner wall of the detection chamber 1. A pressure plate 35 is fixedly connected to the output end of the pressure pump 36. The pressure plate 35 is located inside the limiting frame 7. Multiple openings are evenly spaced on the outer wall of the limiting frame 7. The same fixing rod 37 is fixedly connected to the inner walls on both sides of the multiple openings. Buffer plates 39 are rotatably connected to the outer walls of the multiple fixing rods 37. The multiple buffer plates 39 are located inside the limiting frame 7. Rubber pads 40 are fixedly connected to the top of the multiple buffer plates 39. Torsion springs 38 are sleeved on the outer walls of the multiple fixing rods 37. One end of the multiple torsion springs 38 is fixedly connected to one inner wall of the multiple openings, and the other end of the multiple torsion springs 38 is fixedly connected to one outer wall of the multiple buffer plates 39.

[0029] Specifically, after being output, the pellets enter the interior of the limiting frame 7 through the connecting pipe 8. During the falling process, the pellets come into contact with the rubber pad 40, causing the buffer plate 39 to rotate on the fixed rod 37. Then, the pellets fall above the mounting frame 34, and the torsion spring 38 can drive the buffer plate 39 to reset. During the test, the pressure pump 36 drives the pressure plate 35 to move downward, so that the pressure plate 35 comes into contact with the pellets until the pellets are broken.

[0030] In specific application scenarios, after the pellets enter the limiting frame 7, they will come into contact with the rubber pad 40. At this time, the rubber pad 40 can play a buffering and protective role, preventing the pellets from directly contacting the buffer plate 39. At the same time, the torsion spring 38 can provide an upward rotational force when the buffer plate 39 rotates, thereby further increasing the buffering effect on the pellets, allowing the pellets to fall smoothly above the mounting frame 34, preventing the pellets from falling directly above the mounting frame 34 and breaking during use, thus ensuring the accuracy of the test results. During the test, since the buffer plate 39 can rotate, it will not obstruct the pressure plate 35, thus ensuring the use of the device.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5A dust collection box 3 is fixedly connected to one side of the detection chamber 1. A vacuum pump 30 is fixedly connected to the outer wall of one side of the dust collection box 3. The vacuum pump 30 is located inside the detection chamber 1, and a connecting pipe 11 is fixedly connected to the input end of the vacuum pump 30. Both input ends of the connecting pipe 11 are fixedly connected to annular vacuum chambers 10. Multiple vacuum ports 31 are equally spaced on the inner walls of the two annular vacuum chambers 10. A limiting seat 14 is fixedly connected to the bottom of the inner wall of the detection chamber 1. A recycling box 12 is slidably connected to the inner wall of the limiting seat 14. A recycling box 12 is fixedly connected to the outer wall of one side of the outer wall of the recycling box 12. A handle 13 is fixedly connected to the two annular dust collection chambers 10, which are located between the recycling bin 12 and the test frame 2. The top of the curved plate 17 has three through cleaning holes 16. The outer walls of the multiple placement chambers 26 are fixedly connected to cleaning brushes 28, which are in contact with the top of the curved plate 17. A transparent protective plate 4 is provided on one side of the outer wall of the test chamber 1. The outer wall of one side of the transparent protective plate 4 and the outer wall of one side of the test chamber 1 have multiple interconnected locking holes 6, and the inner walls of the multiple locking holes 6 are threaded with locking bolts 5.

[0032] Specifically, during use, the vacuum pump 30 is started. When the drive motor drives the placement chamber 26 to rotate, the placement chamber 26 can move the cleaning brush 28 on its surface, thereby cleaning some pellet ore fragments on the surface of the curved plate 17. During the movement, the fragments are swept into the cleaning hole 16 and fall into the recycling bin 12. During this process, the vacuum pump 30 and the annular vacuum chamber 10 can clean up the fine debris and dust that come down with the fragments. At the same time, the dust raised during the recycling of crushed pellet ore can be cleaned up. Finally, the staff will collect and process the fragments and crushed pellet ore inside the recycling bin 12.

[0033] In specific application scenarios, the annular dust collection chamber 10 and the dust pump 30 can clean up small debris and dust during use, thereby maintaining the cleanliness of the inside of the detection chamber 1. When the staff handles the recycling box 12, it can prevent small debris and dust from being sucked in. The transparent protective plate 4 can prevent broken pellets from being ejected during detection and causing injury to personnel, thereby improving the safety and practicality of the device.

[0034] Reference Figure 1 , Figure 6 and Figure 8Two fixing plates 32 are fixedly connected to the inner walls of both sides of the mounting frame 34. Three shafts 52 are rotatably connected to the inner walls of opposite sides of the two fixing plates 32. A transmission roller 53 is fixedly connected to the outer wall of each of the two shafts 52. The outer walls of the two transmission rollers 53 are provided with the same conveyor belt 41. A second motor 33 is fixedly connected to one side of the outer wall of one of the fixing plates 32. The output shaft of the second motor 33 is fixedly connected to one end of one of the shafts 52 via a coupling. Multiple cleaning ports are provided on the top of the mounting frame 34. Driven rollers are fixedly connected to the outer walls of both shafts 52. The outer walls of the two driven rollers are provided with the same transmission belt 51. A drive gear 4 is fixedly connected to the outer wall of one of the rotating rods. 4. A support plate 49 is fixedly connected to the top of the inner wall of the mounting frame 34. A mounting component 47 is rotatably connected to one outer wall of the support plate 49. An electric telescopic rod 46 is fixedly connected to one outer wall of the mounting component 47. A driven gear 45 is fixedly connected to the output end of the electric telescopic rod 46. The driven gear 45 meshes with the drive gear 44. The same lead screw 42 is movably connected to both outer walls of the mounting frame 34. A gear 48 is fixedly connected to one end of the lead screw 42. A gear 50 is fixedly connected to one outer wall of the mounting component 47. The gear 48 meshes with the gear 50. Two fixing components 43 are threadedly connected to the outer wall of the lead screw 42. One outer wall of each fixing component 43 is in contact with the inner wall of the limiting frame 7.

[0035] Specifically, before testing, the drive motor is started, which drives one of the shafts 52 to rotate. This, in turn, drives the other shaft 52 to rotate via the driven roller and the transmission belt 51, and drives the drive gear 44 to rotate. At this time, the electric telescopic rod 46 is started. The electric telescopic rod 46 drives the driven gear 45 to mesh with the drive gear 44, which in turn drives the second gear 50 to rotate. Since the second gear 50 meshes with the first gear 48, the first gear 48 and the lead screw 42 rotate, and the lead screw 42 drives the two fixing parts 43 to move to the opposite side, thereby fixing the pellets. After fixing, the electric telescopic rod 46 drives the driven gear 45 to separate from the drive gear 44. After testing, the crushed pellets fall onto the conveyor belt 41 through the cleaning port. At this time, the two shafts 52 and the transmission roller 53 can drive the conveyor belt 41 to move, thereby conveying the crushed pellets on the conveyor belt 41 and allowing the crushed pellets to enter the recycling box 12.

[0036] In specific application scenarios, the drive motor and conveyor belt 41 can automatically clean the crushed pellets after testing to facilitate subsequent testing. At the same time, the electric telescopic rod 46 can control the rotation of the lead screw 42 during the conveying of the crushed pellets, thereby fixing the pellets during use and testing to prevent them from moving during the testing process, ensuring the testing effect and practicality of the device. In addition, there is no need for staff to manually clean the crushed pellets, reducing the workload of the staff.

[0037] Working principle: When placing pellets, the electric lifting rod 20 is activated, which drives the lifting plate 21 to rise. This, in turn, drives the limiting plate 15 to rotate via the connecting rod 23, causing the limiting plate 15 to open. Workers then place different types of pellets into the placement chamber 26. At this time, the electric lifting rod 20 drives the lifting plate 21 to descend, causing the limiting plate 15 and the limiting clamp 25 to limit the pellets inside the placement chamber 26. During pellet conveying and inspection, the motor 9 is activated, which drives the mounting plate 19 and the placement chamber 26 to rotate. When the placement chamber 26 moves to the curved area of ​​the curved plate 17, the placement chamber 26 will descend due to gravity. At this time, the limiting plate 15 and the limiting clamp 25... The position of connecting rod 23 remains unchanged, causing the pellet ore to move out of the placement chamber 26. The placement chamber 26 resets after moving out of the arc area. After output, the pellet ore enters the limiting frame 7 through connecting pipe 8. During its descent, the pellet ore contacts the rubber pad 40, causing the buffer plate 39 to rotate on the fixed rod 37. The pellet ore then lands above the mounting frame 34, and the torsion spring 38 resets the buffer plate 39. Before testing, the drive motor is started, rotating one shaft 52, which in turn rotates the other shaft 52 via the driven roller and transmission belt 51, driving the drive gear 44. At this time, the electric telescopic rod 46 is activated. The movable telescopic rod 46 drives the driven gear 45 to mesh with the drive gear 44, thereby causing the drive gear 44 to drive the second gear 50 to rotate. Since the second gear 50 meshes with the first gear 48, the first gear 48 and the lead screw 42 rotate, causing the lead screw 42 to drive the two fixed parts 43 to move to opposite sides, thus fixing the pellets. During testing, the pressure pump 36 drives the pressure plate 35 downwards, causing the pressure plate 35 to contact the pellets until they are broken. After testing, the broken pellets fall onto the conveyor belt 41 through the cleaning port. At this time, two shafts 52 and the drive roller 53 can drive the conveyor belt 41 to move, thereby adjusting the conveyor belt 41. The crushed ore pellets are transported to the recycling bin 12. When in use, the dust pump 30 is started. When the drive motor drives the placement bin 26 to rotate, the placement bin 26 can move the cleaning brush 28 on its surface, thereby cleaning some ore pellet fragments on the surface of the curved plate 17. During the movement, the fragments are swept into the cleaning hole 16 and fall into the recycling bin 12. During this process, the dust pump 30 and the annular dust suction bin 10 can clean up the fine debris and dust that come down with the fragments. At the same time, the dust raised during the recycling of crushed ore pellets can be cleaned up. Finally, the staff collects and processes the fragments and crushed ore pellets inside the recycling bin 12.

[0038] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pellet strength testing device, comprising a testing chamber (1), characterized in that, The top of the testing chamber (1) has a fixing port, and the inner wall of the fixing port is fixedly connected to the frame to be tested (2). The outer wall of the frame to be tested (2) has a connection port (18), and the inner wall of the connection port (18) is fixedly connected to a connecting pipe (8). The inside of the frame to be tested (2) is fixedly connected to an arc plate (17), and the bottom of the frame to be tested (2) is fixedly connected to a motor (9). The output shaft of the motor (9) is connected to a mounting plate (19) through a coupling. The mounting plate (19) is located on the arc. Above the mounting plate (17), and on the outer wall of the mounting plate (19), there are multiple mounting openings at equal intervals. Mounting rods (29) are fixedly connected to the inner walls of both sides of each mounting opening. Placement chambers (26) are movably connected to the outer walls of each mounting rod (29). Connecting rods (27) are fixedly connected to the inner walls of each placement chamber (26). Limiting plates (15) are movably connected to the outer walls of each connecting rod (27). Limiting clips (25) are fixedly connected to the inner walls of each limiting plate (15). The multiple limiting clips (25) are located inside the multiple placement compartments (26), and the top of each of the multiple limiting plates (15) is fixedly connected to a connector (24). The inner walls of each of the multiple connectors (24) are movably connected to a connecting rod (23), and one end of each of the multiple connecting rods (23) is movably connected to a connecting rod (22). Both ends of each of the multiple connecting rods (22) are fixedly connected to the same lifting plate (21), and the top of the mounting plate (19) is fixedly connected to an electric lifting rod (20). The output end of the movable lifting rod (20) is fixedly connected to the bottom of the lifting plate (21); a mounting frame (34) is fixedly connected to one side of the inner wall of the detection chamber (1), a limit frame (7) is fixedly connected to the top of the mounting frame (34), one end of the connecting pipe (8) is fixedly connected to the inside of the limit frame (7), and a pressure pump (36) is fixedly connected to the top of the inner wall of the detection chamber (1), a pressure plate (35) is fixedly connected to the output end of the pressure pump (36), and the pressure plate (35) is located inside the limit frame (7).

2. The pellet strength testing device according to claim 1, characterized in that, The outer wall of the limiting frame (7) is provided with multiple openings at equal intervals. The inner walls on both sides of the multiple openings are fixedly connected with fixing rods (37). The outer walls of the multiple fixing rods (37) are movably connected with buffer plates (39), and the multiple buffer plates (39) are all located inside the limiting frame (7).

3. The pellet strength testing device according to claim 2, characterized in that, The top of each of the multiple buffer plates (39) is fixedly connected with a rubber pad (40), and the outer wall of each of the multiple fixing rods (37) is fitted with a torsion spring (38). One end of each torsion spring (38) is fixedly connected to the inner wall of one side of each of the multiple openings, and the other end of each torsion spring (38) is fixedly connected to the outer wall of one side of each of the multiple buffer plates (39).

4. The pellet strength testing device according to claim 1, characterized in that, A dust collection box (3) is fixedly connected to one side of the detection chamber (1). A dust pump (30) is fixedly connected to the outer wall of one side of the dust collection box (3). The dust pump (30) is located inside the detection chamber (1), and a connecting pipe (11) is fixedly connected to the input end of the dust pump (30). Both input ends of the connecting pipe (11) are fixedly connected to annular dust collection chambers (10). Multiple dust collection ports (31) are equally spaced on the inner walls of the two annular dust collection chambers (10).

5. The pellet strength testing device according to claim 4, characterized in that, The bottom of the inner wall of the detection chamber (1) is fixedly connected to a limiting seat (14), and the inner wall of the limiting seat (14) is movably connected to a recycling box (12). A handle (13) is fixedly connected to one side of the outer wall of the recycling box (12). Two annular dust collection chambers (10) are located between the recycling box (12) and the frame to be tested (2). The top of the arc plate (17) is provided with three through cleaning holes (16). The outer walls of multiple placement chambers (26) are fixedly connected to cleaning brushes (28), and multiple cleaning brushes (28) are in contact with the top of the arc plate (17).

6. The pellet strength testing device according to claim 1, characterized in that, A transparent protective plate (4) is movably connected to one side of the outer wall of the detection chamber (1). A number of interconnected locking holes (6) are opened on one side of the outer wall of the transparent protective plate (4) and one side of the outer wall of the detection chamber (1), and locking bolts (5) are movably connected to the inner walls of the multiple locking holes (6).

7. The pellet strength testing device according to claim 1, characterized in that, The mounting bracket (34) has two fixed plates (32) fixedly connected to the inner walls on both sides. Three shafts (52) are movably connected to the inner walls on opposite sides of the two fixed plates (32). The outer walls of the two shafts (52) are fixedly connected to transmission rollers (53). The outer walls of the two transmission rollers (53) are provided with the same conveyor belt (41). One side of the outer wall of one of the fixed plates (32) is fixedly connected to a second motor (33). The output shaft of the second motor (33) is fixedly connected to one end of one of the shafts (52) through a coupling. The top of the mounting bracket (34) is provided with multiple cleaning ports.

8. The pellet strength testing device according to claim 7, characterized in that, Both of the shafts (52) are fixedly connected to driven rollers on their outer walls. The outer walls of the two driven rollers are provided with the same transmission belt (51). One of the rotating rods is fixedly connected to a drive gear (44) on its outer wall. The top of the inner wall of the mounting bracket (34) is fixedly connected to a support plate (49). One side of the outer wall of the support plate (49) is movably connected to a mounting component (47). One side of the outer wall of the mounting component (47) is fixedly connected to an electric telescopic rod (46). The output end of the electric telescopic rod (46) is fixedly connected to a driven gear (45). The driven gear (45) meshes with the drive gear (44).

9. The pellet strength testing device according to claim 8, characterized in that, The mounting bracket (34) has a lead screw (42) movably connected to the outer walls on both sides. One end of the lead screw (42) is fixedly connected to a gear (48). One side of the mounting component (47) is fixedly connected to a gear (50). The gear (48) meshes with the gear (50). The outer wall of the lead screw (42) is movably connected to two fasteners (43). One side of the outer wall of the two fasteners (43) is in contact with the inner wall of the limiting frame (7).

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