A kind of ore particle size detection equipment

Abstract

The invention discloses an ore particle size detection device, which relates to the technical field of ore detection, and solves the problem that a CCD industrial camera can only detect the particle size of ore materials on the surface, but cannot detect the particle size of covered ore materials through the CCD industrial camera. The device comprises a base, a positioning frame is fixedly installed on the upper end of the base, an industrial camera is fixedly installed on the lower side of the positioning frame, a conveyor belt 1 is installed on the left side of the base, a conveyor belt 2 is installed on the right side of the base, and a dispersing mechanism is also included, which is used to disperse the ore materials to be detected, and the dispersing mechanism is installed on the upper end of the base and located on the inner side of the positioning frame. The invention installs the dispersing mechanism, which is conducive to making the ore materials falling on the inclined material guide plate sway and disperse with the movement of the inclined material guide plate, thereby facilitating the industrial camera to perform comprehensive detection on the ore materials, and effectively avoiding that part of the ore materials are buried on the lower side and cannot be photographed by the industrial camera.

Description

Technical Field

[0001] The invention relates to the technical field of ore detection, in particular to ore particle size detection equipment. Background Art

[0002] Mineral particle size analysis refers to a technique for analyzing and studying the particle size, morphology and distribution of mineral samples. In mineralogy, particle size analysis is a very important technique because it is directly related to the physical properties, chemical properties and processing performance of minerals. Through mineral particle size analysis, we can understand the particle size composition, distribution law and morphological characteristics of mineral particles, providing an important theoretical basis for mineral selection and processing.

[0003] The existing Chinese public patent CN214201085U discloses an online detection system for ore particle size based on image recognition technology, which uses an arc-shaped flat material vacuum cleaner to flatten the ore material conveyed on the belt conveyor, so that the distance from the material surface on the cross section of the belt conveyor to the CCD industrial camera lens is completely equal, so that the material size and the image maintain the same ratio. However, during the use of the above device, although the arc-shaped flat material vacuum cleaner makes the distance from the material surface on the cross section of the belt conveyor to the CCD industrial camera lens completely equal, it will cause the CCD industrial camera to only be able to detect the particle size of the surface ore material, and the covered ore material cannot be detected by the CCD industrial camera, resulting in the device not being able to fully detect the particle size of the ore material during use. Summary of the invention

[0004] The purpose of the present invention is to provide an ore particle size detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mineral particle size detection device comprises a base, a positioning frame is fixedly mounted on the upper end of the base, an industrial camera is fixedly mounted on the lower side of the positioning frame, a conveyor belt 1 is mounted on the left side of the base, and a conveyor belt 2 is mounted on the right side of the base, and also comprises a scattering mechanism for dispersing mineral materials to be detected, the scattering mechanism is mounted on the upper end of the base and located on the inner side of the positioning frame; a deceleration assembly for slowing down the rolling speed of mineral materials on the scattering mechanism, the deceleration assembly is mounted on the scattering mechanism, the number of the deceleration assemblies is multiple and is equidistantly distributed; an air blowing assembly for preventing dust from adhering to the lens surface of the industrial camera, the air blowing assembly is mounted on the outer sides of the industrial camera and the scattering mechanism.

[0007] Preferably, the bulk material mechanism includes a support frame installed on the upper end of the base, an inclined material guide disk is fixedly installed on the upper end of the support frame, the conveyor belt 1 is located on the upper left side of the inclined material guide disk, and the conveyor belt 2 is located on the lower right side of the inclined material guide disk. The inclined material guide disk facilitates the ore material to slide onto the conveyor belt 2, and four limiting wheels are fixedly installed on the lower end of the support frame, and the limiting wheels are rollingly connected to the base through limiting straight grooves.

[0008] Preferably, two symmetrically distributed push rods are fixedly installed at the front end of the support frame, and a ball is movably embedded in the end of the push rod away from the support frame. A cam is movably abutted against the outer side of the ball, and the cam is rotatably connected to the base through a positioning shaft. The connection between the ball and the cam is rolling contact, and the upper ends of the two positioning shafts are fixedly connected with synchronous wheels, and synchronous belts are cooperatively installed on the outer sides of the two synchronous wheels.

[0009] Preferably, the lower end of one of the positioning shafts is fixedly connected to a driving motor, and the connection between the driving motor and the base is a fixed connection, a plurality of springs 1 distributed at equal distances are fixedly installed on the inner side of the support frame, spring 1 is used to drive the inclined material guide plate to move forward and reset, the end of the spring 1 away from the support frame is fixedly connected to a fixing frame, and the connection between the fixing frame and the base is a fixed connection, and a plurality of springs 1 are located on the front side of the fixing frame.

[0010] Preferably, the deceleration assembly includes a deceleration plate installed on the upper side of the inclined material guide plate, the deceleration plate is used to slow down the rolling speed of the ore material on the inclined material guide plate, a plug-in groove is opened on the inclined material guide plate corresponding to the deceleration plate, and the deceleration plate is plug-in connected to the inclined material guide plate through the plug-in groove, the lower end of the deceleration plate is fixedly connected to a fixing plate, and the upper end surface of the fixing plate can be movably abutted against the lower end surface of the inclined material guide plate.

[0011] Preferably, two symmetrically distributed pins are fixedly embedded on the upper end of the fixed plate, and the inclined material guide plate is located between the two pins, the cross-sectional shape of the pins is circular, a positioning seat is movably sleeved on the outer side of the pins, and the connection between the positioning seat and the inclined material guide plate is a fixed connection, a spring 2 is also movably sleeved on the outer side of the pins, and the two ends of the spring 2 are movably abutted against the fixed plate and the positioning seat respectively.

[0012] Preferably, a sealing plate is fixedly connected to the upper end of the pin rod, and the sealing plate is located on the upper side of the positioning seat, the sealing plate is used to prevent the pin rod from detaching from the positioning seat, a stopper is fixedly installed on the lower end of the fixed plate, and a bevel portion is provided at one end of the stopper, the stops in the multiple deceleration assemblies are staggered, and a second push rod is installed on the upper end of the fixed frame corresponding to the lower side of the stopper, a second ball is movably embedded in the upper end of the second push rod, and the second ball is in rolling contact with the stopper through the bevel portion.

[0013] Preferably, the number of the blowing assemblies is two groups and they are symmetrically distributed, the two blowing assemblies are respectively located on the front and rear sides of the inclined material guide plate, the two blowing assemblies can alternately blow out gas during the reciprocating movement of the inclined material guide plate back and forth, the blowing assembly includes a connecting rod fixedly connected to the support frame, and a piston is fixedly connected to one end of the connecting rod away from the support frame.

[0014] Preferably, the outer side of the piston is movably connected with a sleeve, and the connection between the sleeve and the base is a fixed connection, the piston can reciprocate inside the sleeve, and the end of the sleeve away from the support frame is fixedly installed with a conduit interconnected with it, and the conduit passes through the positioning frame, and the outer side of the sleeve is also fixedly installed with an air intake pipe interconnected with it.

[0015] Preferably, a one-way valve is fixedly installed on the conduit and the air inlet pipe, an air nozzle is fixedly installed on the end of the conduit away from the sleeve, a fixing buckle is fixedly installed on the outside of the conduit, the fixing buckle is used to position the air nozzle, and the connection between the fixing buckle and the positioning frame is a fixed connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention installs a bulk material mechanism, and the inclined material guide plate in the bulk material mechanism can swing back and forth under the action of the cam, which is conducive to the ore material falling on the inclined material guide plate to be dispersed with the swing of the inclined material guide plate, thereby facilitating the industrial camera to perform a comprehensive inspection of the ore material, and effectively avoiding that part of the ore material is buried on the lower side and cannot be photographed by the industrial camera.

[0018] 2. The present invention installs multiple deceleration components on the inclined material guide plate. The deceleration plates in the multiple deceleration components can be alternately raised and lowered during the reciprocating swing of the inclined material guide plate, thereby slowing down the rolling speed of the ore materials on the inclined material guide plate, especially some relatively round ore materials, which is beneficial to improving the clarity of image acquisition by the industrial camera.

[0019] 3. By installing a blowing assembly, the air nozzles in the two blowing assemblies can blow air alternately on the outside of the camera head of the industrial camera during the reciprocating movement of the inclined material guide plate, which can effectively prevent the dust generated during the swinging of the ore material from adhering to and accumulating on the camera head of the industrial camera, thereby affecting the clarity of the industrial camera shooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a side sectional schematic diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the present invention where the conveyor belt 1, the base, and the conveyor belt 2 are removed;

[0023] Figure 4 It is a schematic diagram of the disassembly of the bulk material mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the bottom side of the inclined material guide plate of the present invention;

[0025] Figure 6 It is a schematic diagram of the deceleration assembly and the inclined material guide plate of the present invention;

[0026] Figure 7 It is an overall schematic diagram of the deceleration assembly of the present invention;

[0027] Figure 8 It is a side sectional schematic diagram of the blowing assembly of the present invention.

[0028] In the figure: 1. base; 2. positioning frame; 3. industrial camera; 4. conveyor belt 1; 5. conveyor belt 2; 6. support frame; 7. inclined guide plate; 8. limiting wheel; 9. push rod 1; 10. ball 1; 11. cam; 12. positioning shaft; 13. synchronous wheel; 14. synchronous belt; 15. drive motor; 16. spring 1; 17. fixed frame; 18. deceleration plate; 19. plug-in slot; 20. fixed plate; 21. pin rod; 22. positioning seat; 23. spring 2; 24. sealing plate; 25. block; 26. push rod 2; 27. ball 2; 28. connecting rod; 29. ​​piston; 30. sleeve; 31. conduit; 32. intake pipe; 33. one-way valve; 34. jet nozzle; 35. fixing buckle. DETAILED DESCRIPTION

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

[0030] Example 1: Please refer to Figure 1-Figure 4 , an ore particle size detection device shown in the figure includes a base 1, a positioning frame 2 is fixedly installed on the upper end of the base 1, an industrial camera 3 is fixedly installed on the lower side of the positioning frame 2, a conveyor belt 1 4 is installed on the left side of the base 1, and a conveyor belt 2 5 is installed on the right side of the base 1, and also includes a scattering mechanism for dispersing the ore materials to be detected, the scattering mechanism is installed at the upper end of the base 1 and is located on the inner side of the positioning frame 2; a deceleration component is used to slow down the rolling speed of the ore materials on the scattering mechanism, the deceleration component is installed on the scattering mechanism, the number of the deceleration components is multiple, and they are distributed at equal distances; an air blowing component is used to prevent dust from adhering to the lens surface of the industrial camera 3, and the air blowing component is installed on the outer side of the industrial camera 3 and the scattering mechanism;

[0031] When the ore material moves on the inclined guide plate 7, the industrial camera 3 collects images of the ore material, and the computer analyzes the particle size of the ore material based on the collected images of the ore material. Finally, the ore material on the inclined guide plate 7 will automatically fall onto the conveyor belt 2 5 to be collected or further processed.

[0032] The bulk material mechanism includes a support frame 6 installed on the upper end of the base 1, and an inclined material guide plate 7 is fixedly installed on the upper end of the support frame 6. The conveyor belt 1 4 is located on the upper left side of the inclined material guide plate 7, and the conveyor belt 2 5 is located on the lower right side of the inclined material guide plate 7. The inclined material guide plate 7 facilitates the ore material to slide onto the conveyor belt 2 5. Four limiting wheels 8 are fixedly installed on the lower end of the support frame 6, and the limiting wheels 8 are rollingly connected to the base 1 through limiting straight grooves.

[0033] Two symmetrically distributed push rods 9 are fixedly installed at the front end of the support frame 6. A ball 10 is movably embedded in the end of the push rod 9 away from the support frame 6. A cam 11 is movably abutted on the outer side of the ball 10, and the cam 11 is rotatably connected to the base 1 through a positioning shaft 12. The connection between the ball 10 and the cam 11 is rolling contact. The upper ends of the two positioning shafts 12 are fixedly connected with synchronous wheels 13, and the outer sides of the two synchronous wheels 13 are matched with synchronous belts 14.

[0034] The lower end of one of the positioning shafts 12 is fixedly connected to a driving motor 15, and the connection between the driving motor 15 and the base 1 is a fixed connection. A plurality of springs 16 distributed at equal distances are fixedly installed on the inner side of the support frame 6. The spring 16 is used to drive the inclined material guide plate 7 to move forward and reset. The end of the spring 16 away from the support frame 6 is fixedly connected to a fixing frame 17, and the connection between the fixing frame 17 and the base 1 is a fixed connection. A plurality of springs 16 are located on the front side of the fixing frame 17.

[0035] Working principle: In the process of detecting ore materials, the driving motor 15 drives a cam 11 to rotate. Under the action of the synchronous wheel 13 and the synchronous belt 14, the two cams 11 rotate synchronously. Under the condition that the ball 10 and the cam 11 are in rolling contact, when the cam 11 rotates and its protruding part abuts against the ball 10, the support frame 6 and the inclined guide plate 7 will gradually move backwards under the drive of the cam 11. When the protruding part of the cam 11 rotates and gradually moves away from the ball 10, the support frame 6 and the inclined guide plate 7 will gradually move forward and reset under the drive of the compression elastic force of the spring 16. In this way, the conveyor belt 4 transports the ore materials to the inclined guide plate 7. The inclined guide plate 7 swings back and forth, which is conducive to the ore materials falling on the inclined guide plate 7. The swinging and dispersion of the inclined guide plate 7 is conducive to the comprehensive detection of the ore materials by the industrial camera 3, and effectively avoids part of the ore materials being buried on the lower side and unable to be photographed by the industrial camera 3.

[0036] Since the inclined material guide tray 7 is in an inclined state, the ore material can slide or roll along the inclined material guide tray 7 during the process of the inclined material guide tray 7 swinging back and forth. During the process of the ore material moving on the inclined material guide tray 7, the industrial camera 3 collects the image of the ore material, and the computer analyzes the particle size of the ore material based on the collected image of the ore material. Finally, the ore material on the inclined material guide tray 7 will automatically fall onto the conveyor belt 2 5 to be collected or further processed.

[0037] Example 2: Please refer to Figure 4-Figure 7 This embodiment further explains Example 1. The deceleration assembly includes a deceleration plate 18 installed on the upper side of the inclined material guide tray 7. The deceleration plate 18 is used to slow down the rolling speed of the ore material on the inclined material guide tray 7, which is beneficial to improve the clarity of the image acquisition of the industrial camera 3. A plug-in slot 19 is opened on the inclined material guide tray 7 corresponding to the deceleration plate 18, and the deceleration plate 18 is plugged and unplugged with the inclined material guide tray 7 through the plug-in slot 19. The lower end of the deceleration plate 18 is fixedly connected with a fixed plate 20, and the upper end surface of the fixed plate 20 can be movably abutted against the lower end surface of the inclined material guide tray 7.

[0038] Two symmetrically distributed pins 21 are fixedly embedded on the upper end of the fixed plate 20, and the inclined material guide plate 7 is located between the two pins 21. The cross-sectional shape of the pin 21 is circular, and a positioning seat 22 is movably sleeved on the outer side of the pin 21, and the connection between the positioning seat 22 and the inclined material guide plate 7 is a fixed connection. A spring 23 is also movably sleeved on the outer side of the pin 21, and the two ends of the spring 23 are movably abutted against the fixed plate 20 and the positioning seat 22 respectively.

[0039] A sealing plate 24 is fixedly connected to the upper end of the pin rod 21, and the sealing plate 24 is located on the upper side of the positioning seat 22. The sealing plate 24 is used to prevent the pin rod 21 from detaching from the positioning seat 22. A stopper 25 is fixedly installed at the lower end of the fixed plate 20, and one end of the stopper 25 is provided with a bevel portion. In the process of the deceleration plate 18 reciprocating back and forth with the inclined material guide plate 7, the ball 27 will roll and contact with the stopper 25 through the bevel portion of the stopper 25. The stops 25 in the multiple deceleration assemblies are staggered. A push rod 26 is installed at the upper end of the fixed frame 17 corresponding to the lower side of the stopper 25. The upper end of the push rod 26 is movably embedded with a ball 27, and the ball 27 rolls and contacts with the stopper 25 through the bevel portion.

[0040] In this embodiment: in the process of the speed reduction plate 18 moving back and forth with the inclined material guide plate 7, the ball 27 will roll and contact with the block 25 through the oblique edge of the block 25. In this process, driven by the compression force of the spring 23, the push rod 26 will drive the fixed plate 20 and the speed reduction plate 18 to move back and forth up and down through the ball 27 and the block 25. Since the blocks 25 in the multiple deceleration components are staggered, the multiple speed reduction plates 18 will move back and forth alternately up and down, which can block the ore materials on the inclined material guide plate 7 and slow down the rolling speed of the ore materials on the inclined material guide plate 7, especially some relatively round ore materials, thereby helping to improve the clarity of image acquisition by the industrial camera 3.

[0041] Example 3: Please refer to Figure 2 , Figure 3 and Figure 8 This embodiment further explains Example 1. The number of blowing assemblies is two groups, and they are symmetrically distributed. The two blowing assemblies are respectively located on the front and rear sides of the inclined material guide plate 7. The two blowing assemblies can alternately blow out gas during the reciprocating movement of the inclined material guide plate 7. The blowing assembly includes a connecting rod 28 fixedly connected to the support frame 6, and a piston 29 is fixedly connected to the end of the connecting rod 28 away from the support frame 6.

[0042] The outer side of the piston 29 is movably sleeved with a sleeve 30, and the connection between the sleeve 30 and the base 1 is a fixed connection. The piston 29 can reciprocate inside the sleeve 30. The end of the sleeve 30 away from the support frame 6 is fixedly installed with a conduit 31 that is interconnected with it, and the conduit 31 penetrates the positioning frame 2. The outer side of the sleeve 30 is also fixedly installed with an air intake pipe 32 that is interconnected with it;

[0043] When the piston 29 moves toward the conduit 31 , the gas inside the sleeve 30 will be squeezed into the conduit 31 under the action of the one-way valve 33 . When the piston 29 moves away from the conduit 31 , the gas will enter the interior of the sleeve 30 through the air inlet pipe 32 .

[0044] A one-way valve 33 is fixedly installed on the conduit 31 and the air inlet pipe 32, an air nozzle 34 is fixedly installed on the end of the conduit 31 away from the sleeve 30, and a fixing buckle 35 is fixedly installed on the outer side of the conduit 31. The fixing buckle 35 is used to position the air nozzle 34, and the connection between the fixing buckle 35 and the positioning frame 2 is a fixed connection.

[0045] In this embodiment: during the reciprocating movement of the support frame 6, the pistons 29 in the two blowing assemblies reciprocate back and forth inside the sleeve 30 driven by the connecting rod 28. When one piston 29 moves toward the direction of the conduit 31, under the action of the one-way valve 33, the gas inside the sleeve 30 will be squeezed into the conduit 31 and ejected through the air nozzle 34. The other piston 29 will move away from the conduit 31, allowing the gas to enter the interior of the sleeve 30 through the air inlet pipe 32. In this reciprocating manner, the two air nozzles 34 can alternately eject gas on the outside of the industrial camera 3, forming a wind screen on the lower side of the camera head of the industrial camera 3, which can effectively prevent the dust generated during the swinging of the ore material from adhering to and accumulating on the camera head of the industrial camera 3, thereby affecting the clarity of the shooting of the industrial camera 3.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ore particle size detection device, comprising a base (1), a positioning frame (2) is fixedly mounted on the upper end of the base (1), an industrial camera (3) is fixedly mounted on the lower side of the positioning frame (2), a conveyor belt 1 (4) is mounted on the left side of the base (1), and a conveyor belt 2 (5) is mounted on the right side of the base (1), characterized in that: Also includes: A material dispersing mechanism, used for dispersing the ore material to be detected, the material dispersing mechanism being installed at the upper end of the base (1) and located on the inner side of the positioning frame (2); A deceleration assembly, used to slow down the rolling speed of the ore material on the bulking mechanism, the deceleration assembly is installed on the bulking mechanism, and the number of the deceleration assemblies is multiple groups, and they are distributed at equal distances; An air blowing component, used to prevent dust from adhering to the lens surface of the industrial camera (3), the air blowing component being installed on the outside of the industrial camera (3) and the bulking mechanism; The bulk material mechanism comprises a support frame (6) mounted on the upper end of the base (1), an inclined material guide plate (7) is fixedly mounted on the upper end of the support frame (6), the conveyor belt 1 (4) is located on the upper left side of the inclined material guide plate (7), the conveyor belt 2 (5) is located on the lower right side of the inclined material guide plate (7), and four limiting wheels (8) are fixedly mounted on the lower end of the support frame (6), and the limiting wheels (8) are rollingly connected to the base (1) through limiting straight grooves; Two symmetrically distributed push rods (9) are fixedly mounted at the front end of the support frame (6); a ball (10) is movably embedded in one end of the push rod (9) away from the support frame (6); a cam (11) is movably abutted on the outer side of the ball (10); and the cam (11) is rotatably connected to the base (1) via a positioning shaft (12); a synchronous wheel (13) is fixedly connected to the upper ends of the two positioning shafts (12); and a synchronous belt (14) is cooperatively mounted on the outer sides of the two synchronous wheels (13); A driving motor (15) is fixedly connected to the lower end of one of the positioning shafts (12), and the driving motor (15) is connected to the base (1) in a fixed manner. A plurality of springs (16) are fixedly installed on the inner side of the support frame (6) and are distributed at equal distances. An end of the spring (16) away from the support frame (6) is fixedly connected to a fixing frame (17), and the fixing frame (17) is connected to the base (1) in a fixed manner. The plurality of springs (16) are located on the front side of the fixing frame (17); The deceleration assembly comprises a deceleration plate (18) mounted on the upper side of the inclined material guide plate (7); a plug-in slot (19) is provided on the inclined material guide plate (7) at a position corresponding to the deceleration plate (18); the deceleration plate (18) is pluggably connected to the inclined material guide plate (7) via the plug-in slot (19); a fixing plate (20) is fixedly connected to the lower end of the deceleration plate (18); and an upper end surface of the fixing plate (20) can be movably abutted against a lower end surface of the inclined material guide plate (7); Two symmetrically distributed pins (21) are fixedly embedded at the upper end of the fixed plate (20), and the inclined material guide plate (7) is located between the two pins (21). A positioning seat (22) is movably sleeved on the outer side of the pins (21), and the positioning seat (22) and the inclined material guide plate (7) are connected in a fixed manner. A second spring (23) is also movably sleeved on the outer side of the pins (21), and the two ends of the second spring (23) are movably abutted against the fixed plate (20) and the positioning seat (22) respectively. The upper end of the pin rod (21) is fixedly connected to a sealing plate (24), and the sealing plate (24) is located on the upper side of the positioning seat (22); a stopper (25) is fixedly installed on the lower end of the fixing plate (20), and one end of the stopper (25) is provided with a bevel portion; the stoppers (25) in the plurality of deceleration assemblies are arranged in a staggered manner; a second push rod (26) is installed at the upper end of the fixing frame (17) corresponding to the lower side of the stopper (25); a second ball (27) is movably embedded in the upper end of the second push rod (26), and the second ball (27) is in rolling contact with the stopper (25) through the bevel portion.

2. The ore particle size detection device according to claim 1 is characterized in that: The number of the blowing assemblies is two and they are symmetrically distributed. The two blowing assemblies are respectively located on the front and rear sides of the inclined material guide plate (7). The blowing assemblies include a connecting rod (28) fixedly connected to the support frame (6), and one end of the connecting rod (28) away from the support frame (6) is fixedly connected to a piston (29).

3. The ore particle size detection device according to claim 2 is characterized in that: The outer side of the piston (29) is movably sleeved with a sleeve (30), and the sleeve (30) is fixedly connected to the base (1). An end of the sleeve (30) away from the support frame (6) is fixedly mounted with a conduit (31) that is in communication with the support frame, and the conduit (31) passes through the positioning frame (2). An air intake pipe (32) that is in communication with the support frame is also fixedly mounted on the outer side of the sleeve (30).

4. The ore particle size detection device according to claim 3 is characterized in that: A one-way valve (33) is fixedly mounted on both the conduit (31) and the air inlet pipe (32); an air nozzle (34) is fixedly mounted on one end of the conduit (31) away from the sleeve (30); a fixing buckle (35) is fixedly mounted on the outside of the conduit (31); and the fixing buckle (35) and the positioning frame (2) are connected in a fixed manner.

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