A loading device for a mining conveyor and a method of using the same

Abstract

The application discloses a feeding device of a mining conveyor and a use method thereof, and relates to the technical field of mining equipment. The feeding device comprises a buffer frame, a buffer mechanism is arranged outside the buffer frame, the buffer mechanism comprises a buffer groove, a flap is movably connected inside the buffer groove, a rotating shaft is fixedly connected through the body of the flap, the rotating shaft is rotatably connected through the body of the buffer frame, a connecting groove is formed in the outer surface of the flap, a cutter is movably connected inside the connecting groove, the cutter is rotatably connected with the inner surface of the buffer groove, a rotating rod is fixedly connected through the body of the cutter, and the rotating rod is rotatably connected with the inner surface of the buffer groove. The feeding device solves the problem that, when the existing feeding device of the mining conveyor is used, a large-volume and heavy mineral falls with large kinetic energy, which easily causes the device to be damaged and unable to be normally used, and the mineral to be deviated and to fall.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, specifically to a feeding device for a mining conveyor and its usage method. Background Technology

[0002] Mineral conveyors are typically used for transporting minerals during mining operations. Some systems employ mechanized feeding structures. However, after the minerals on one side of the storage bin are fed, the minerals on the other side need to be manually transferred to the feeding equipment, which affects feeding efficiency and results in poor performance. The feeding device for the mining conveyor, which includes a buffer frame, as described in application number 2020218741856, improves feeding efficiency, has a simple structure, and is suitable for widespread application.

[0003] Although the device has the advantages mentioned above, it still has a drawback in actual use. Since the minerals fall directly onto the horizontal surface of the pusher through the buffer trough, some large minerals, due to their large size and heavy weight, have a large kinetic energy during the fall. On the one hand, this can easily damage the equipment, causing it to break down and become unusable. On the other hand, it can also cause the minerals to deviate and fall, affecting the conveying quality. Therefore, it is necessary to solve the above-mentioned problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a feeding device for a mining conveyor and its usage method, which solves the problems that existing feeding devices for mining conveyors have issues such as large volume and weight of minerals falling with high kinetic energy, which can easily lead to equipment damage and malfunction, as well as minerals shifting and falling off.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for a mining conveyor, comprising a buffer frame, a buffer mechanism provided on the outside of the buffer frame, the buffer mechanism comprising a buffer groove, a flap movably connected inside the buffer groove, a rotating shaft fixedly connected through the body of the flap, the outer surface of the rotating shaft being rotatably connected through the body of the buffer frame, a connecting groove provided on the outer surface of the flap, a cutter movably connected inside the connecting groove, the outer surface of the cutter being rotatably connected to the inside of the buffer groove, a rotating rod fixedly connected through the body of the cutter, the outer surface of the rotating rod being rotatably connected to the inside of the buffer groove, the outer surface of the rotating rod being rotatably connected through the body of the buffer frame, and a drive motor fixedly connected to one end of the rotating rod via a coupling, the drive motor being fixedly mounted on the outer surface of the buffer frame.

[0006] Preferably, the cutter is provided with a baffle on its exterior, a shaft is fixedly connected to the outer surface of the baffle, a support plate is rotatably connected to the outer surface of the shaft, the outer surface of the support plate is fixedly connected to the outer surface of the buffer frame, a stop block is fixedly connected to the outer surface of the support plate, a stop bar is movably connected to the outer surface of the stop block, the outer surface of the stop bar is fixedly connected to the outer surface of the shaft, a spring rod is rotatably connected to the outer surface of the flip plate, and one end of the spring rod is rotatably connected to the outer surface of the buffer frame.

[0007] Preferably, a counteracting component is provided on the outside of the rotating shaft. The counteracting component includes a ring. The outer surface of the ring is fixedly connected to the outer surface of the buffer frame via a fixed rod. A fixed plate is fixedly connected to the outer surface of the ring. An airbag is fixedly connected to the outer surface of the fixed plate. A sliding plate is fixedly connected to the outer surface of the airbag. The body of the sliding plate is slidably connected to the outer surface of the ring. A connecting plate is fixedly connected to the outer surface of the sliding plate. The outer surface of the connecting plate is fixedly connected to the outer surface of the rotating shaft.

[0008] Preferably, a pressure control unit is provided on the outside of the airbag. The pressure control unit includes an air intake pipe, one end of which is connected to a one-way valve. The interior of the one-way valve is in through communication with the interior of the airbag. A dual-axis motor is fixedly connected inside the air intake pipe. A fan blade is fixedly connected to one output end of the dual-axis motor. The outer surface of the fan blade is movably connected to the interior of the air intake pipe. An exhaust pipe is connected inside the air intake pipe. The interior of the exhaust pipe is in through communication with the interior of the airbag. A solenoid valve is provided on the outer surface of the exhaust pipe.

[0009] Preferably, a filter screen is movably connected to the other output end of the dual-axis motor, the outer surface of the filter screen is fixedly connected to the inside of the air intake pipe, and a scraper is fixedly connected to the other output end of the dual-axis motor, the outer surface of the scraper is movably connected to the outer surface of the filter screen.

[0010] Preferably, the dual-axis motor is provided with a detection module, which includes a sliding rheostat. The outer surface of the sliding rheostat is fixedly connected to the outer surface of the buffer frame. An insulating column is fixedly connected to the sliding end of the sliding rheostat. A rotating bar is movably connected to the outer surface of the insulating column. The outer surface of the rotating bar is fixedly connected to the outer surface of the rotating shaft.

[0011] Preferably, a pin is movably connected to the outer surface of the rotating bar, a through groove is provided on the body of the rotating bar, the outer surface of the pin is movably connected to the inside of the through groove, and one end of the pin is fixedly connected to the outer surface of the insulating column.

[0012] This invention also discloses a method for using a feeding device for a mining conveyor, specifically including the following steps:

[0013] Step 1: Place the mineral to be transferred into the buffer groove of the buffer rack. The mineral slides down into the buffer groove and comes into contact with the flap, causing the flap to rotate and then come into contact with the cutter, so that it is chopped and dispersed by the cutter.

[0014] Step 2: The flip-board movement is driven by the rotating shaft to move the slide plate and the rotating bar in sync. The rotating bar drives the sliding end of the sliding rheostat to move in sync, thereby obtaining the instantaneous current change to control the speed of the dual-axis motor. In conjunction with the action of the solenoid valve, the internal pressure of the airbag is controlled to counteract the kinetic energy of the flip-board rotation.

[0015] Step 3: The shredded minerals come into contact with the baffle, the baffle rotates to guide the minerals, and at the same time are stretched through the output end of the spring rod to counteract the kinetic energy of the minerals falling.

[0016] Beneficial effects

[0017] This invention provides a feeding device for a mining conveyor and its usage method. Compared with the prior art, it has the following advantages:

[0018] (1) By setting up a buffer mechanism, the kinetic energy of the mineral feed is reduced by cutting and crushing the mineral, using elastic force to offset it, and guiding the mineral flow, thus avoiding the problems of mineral deviation and damage to the equipment.

[0019] (2) By setting up a counteracting component, the rotating shaft drives the slide plate to rotate through the connecting plate, thereby driving the airbag to expand and contract through the slide plate. The elasticity of the airbag and the shock absorption of the internal air can counteract the impact on the flip plate, avoid damage to the cutter, and facilitate the crushing of minerals.

[0020] (3) By setting up a pressure control unit, the air inlet pipe can be inflated into the airbag using a one-way valve and a fan blade, and the exhaust pipe can be vented to the outside using a solenoid valve, thereby controlling the air pressure inside the airbag. The air pressure and the expansion and contraction of the airbag are used to provide controllable elasticity to offset the impact on the flap.

[0021] (4) By setting up a detection module, the rotating bar follows the rotating shaft to rotate, and through the connection of the pin and the through slot, the sliding end of the sliding rheostat moves, causing the current value of the detection circuit to change. Based on the change of instantaneous current, the speed of the dual-axis motor is controlled so as to offset different impact forces through controllable elastic force. Attached Figure Description

[0022] Figure 1 This is a perspective view of the external structure of the present invention;

[0023] Figure 2 This is a perspective view of the external structure of the flip plate of the present invention;

[0024] Figure 3 This is a perspective view of the external structure of the support plate of the present invention;

[0025] Figure 4 This is a perspective view of the external structure of the ring of the present invention;

[0026] Figure 5 This is a cross-sectional view of the internal structure of the intake pipe of the present invention;

[0027] Figure 6 This is a perspective view of the external structure of the rotating strip of the present invention.

[0028] In the diagram: 1. Buffer frame; 2. Buffer groove; 3. Flip plate; 4. Rotating shaft; 5. Counteracting component; 51. Ring; 52. Fixed rod; 53. Fixed plate; 54. Airbag; 55. Slide plate; 56. Connecting plate; 57. Pressure control unit; 571. Inlet pipe; 572. One-way valve; 573. Dual-axis motor; 574. Detection module; 5741. Sliding rheostat; 5742. Insulating column; 5743. Rotating bar; 5744. Pin; 5745. Through groove; 575. Fan blade; 576. Exhaust pipe; 577. Solenoid valve; 578. Filter screen; 579. Scraper; 6. Connecting groove; 7. Cutter; 8. Rotating rod; 9. Drive motor; 10. Baffle; 11. Shaft; 12. Support plate; 13. Abutment block; 14. Abutment bar; 15. Spring rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-6 The present invention provides a technical solution: a feeding device for a mining conveyor.

[0031] Example 1: Refer to the attached instruction manual Figure 1 Appendix Figure 2 Appendix Figure 3 ;

[0032] The system includes a buffer frame 1, which is installed on an existing pusher frame. A buffer mechanism is provided on the outside of the buffer frame 1. The buffer mechanism includes a buffer groove 2, and a flap 3 is movably connected inside the buffer groove 2. The flap 3 is made of a pressure-resistant, wear-resistant, and corrosion-resistant material. A rotating shaft 4 is fixedly connected through the body of the flap 3. The outer surface of the rotating shaft 4 is rotatably connected through the body of the buffer frame 1. A connecting groove 6 is provided on the outer surface of the flap 3. A cutter 7 is movably connected inside the connecting groove 6. The cutter 7 is made of a pressure-resistant, wear-resistant, corrosion-resistant, and high-hardness material. The outer surface of the cutter 7 is rotatably connected to the inside of the buffer groove 2. A rotating rod 8 is fixedly connected through the body of the cutter 7. The outer surface of the rotating rod 8 is rotatably connected to the inside of the buffer groove 2 and rotatably connected through the body of the buffer frame 1. One end of the rotating rod 8 is fixedly connected to a drive motor 9 via a coupling. The drive motor 9 is electrically connected to an external control circuit and is fixedly installed on the outer surface of the buffer frame 1.

[0033] The cutter 7 is equipped with a baffle 10, which is made of a pressure-resistant, wear-resistant and corrosion-resistant material. A shaft 11 is fixedly connected to the outer surface of the baffle 10. A support plate 12 is rotatably connected through the outer surface of the shaft 11. The outer surface of the support plate 12 is fixedly connected to the outer surface of the buffer frame 1. A stop block 13 is fixedly connected to the outer surface of the support plate 12. The stop block 13 is made of a pressure-resistant, wear-resistant and corrosion-resistant material. A stop bar 14 is movably connected to the outer surface of the stop block 13. The stop bar 14 is made of a pressure-resistant, wear-resistant and corrosion-resistant material. By abutting against the stop block 13, the rotation of the baffle 10 can be limited to prevent excessive rotation and failure to return to the original position. The outer surface of the stop bar 14 is fixedly connected to the outer surface of the shaft 11. A spring rod 15 is rotatably connected to the outer surface of the flip plate 3. The spring rod 15 is made of a pressure-resistant, wear-resistant and fatigue-resistant material. One end of the spring rod 15 is rotatably connected to the outer surface of the buffer frame 1.

[0034] By setting up a buffer mechanism, the kinetic energy of the mineral feed is reduced by cutting and crushing the mineral, using elastic force to offset it, and guiding the mineral flow, thus avoiding the problems of mineral deviation and damage to the equipment.

[0035] Example 2: Based on Example 1, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 4 ;

[0036] The rotating shaft 4 is provided with a counteracting component 5, which includes a ring 51. The ring 51 is made of a material that is pressure-resistant, wear-resistant and corrosion-resistant. The outer surface of the ring 51 is fixedly connected to the outer surface of the buffer frame 1 through a fixed rod 52. A fixed plate 53 is fixedly connected to the outer surface of the ring 51. An airbag 54 is fixedly connected to the outer surface of the fixed plate 53. The airbag 54 is made of a material that is well-sealed, elastic, tensile-resistant and fatigue-resistant. A sliding plate 55 is fixedly connected to the outer surface of the airbag 54. The sliding plate 55 is made of a material that is pressure-resistant, wear-resistant and corrosion-resistant. The body of the sliding plate 55 is slidably connected to the outer surface of the ring 51. A connecting plate 56 is fixedly connected to the outer surface of the sliding plate 55. The outer surface of the connecting plate 56 is fixedly connected to the outer surface of the rotating shaft 4.

[0037] By setting the offset component 5, the rotating shaft 4 drives the slide plate 55 to rotate through the connecting plate 56, thereby driving the airbag 54 to extend and retract through the slide plate 55. By utilizing the elasticity of the airbag 54 and the shock absorption of the internal air, the impact on the flip plate 3 can be offset, avoiding damage to the cutter 7 and facilitating the crushing of minerals.

[0038] Example 3: Based on Example 2, refer to the appendix of the instruction manual. Figure 4 Appendix Figure 5 ;

[0039] An external pressure control unit 57 is provided on the airbag 54. The pressure control unit 57 includes an air intake pipe 571. One end of the air intake pipe 571 is connected to a one-way valve 572. The interior of the one-way valve 572 is in continuous communication with the interior of the airbag 54. A dual-axis motor 573 is fixedly connected inside the air intake pipe 571. The dual-axis motor 573 is electrically connected to an external control circuit. One output end of the dual-axis motor 573 is fixedly connected to a fan blade 575. The outer surface of the fan blade 575 is movably connected to the interior of the air intake pipe 571. An exhaust pipe 576 is connected inside the air intake pipe 571. The interior of the exhaust pipe 576 is in continuous communication with the interior of the airbag 54. A solenoid valve 577 is provided on the outer surface of the exhaust pipe 576. The solenoid valve 577 is electrically connected to an external control circuit.

[0040] The other output end of the dual-axis motor 573 is movably connected to a filter 578. The filter 578 is made of a pressure-resistant, wear-resistant and corrosion-resistant material, which can prevent dust from entering the interior and causing pollution, blockage and corrosion. The outer surface of the filter 578 is fixedly connected to the interior of the air intake pipe 571. The other output end of the dual-axis motor 573 is fixedly connected to a scraper 579, and the outer surface of the scraper 579 is movably connected to the outer surface of the filter 578.

[0041] By setting up a pressure control unit 57, the air intake pipe 571 can inflate the airbag 54 with a one-way valve 572 and a fan blade 575, and the exhaust pipe 576 can exhaust to the outside with a solenoid valve 577, thereby controlling the air pressure inside the airbag 54. By using the air pressure and the expansion and contraction of the airbag 54, controllable elasticity can be provided to offset the impact on the flap 3.

[0042] Example 4: Based on Example 3, refer to the appendix of the instruction manual. Figure 1 Appendix Figure 6 ;

[0043] The dual-axis motor 573 is externally equipped with a detection module 574, which includes a sliding rheostat 5741. The sliding rheostat 5741 is electrically connected to an external control circuit to form a detection circuit. The outer surface of the sliding rheostat 5741 is fixedly connected to the outer surface of the buffer frame 1. An insulating post 5742 is fixedly connected to the sliding end of the sliding rheostat 5741. The insulating post 5742 is made of insulating, pressure-resistant, wear-resistant and corrosion-resistant materials to prevent leakage and excessive wear. A rotating bar 5743 is movably connected to the outer surface of the insulating post 5742. The outer surface of the rotating bar 5743 is fixedly connected to the outer surface of the rotating shaft 4.

[0044] A pin 5744 is movably connected to the outer surface of the rotating bar 5743. The body of the rotating bar 5743 has a through groove 5745. The cooperation between the pin 5744 and the through groove 5745 allows the sliding end of the sliding rheostat 5741 to slide left and right as the rotating bar 5743 rotates. The outer surface of the pin 5744 is movably connected to the inside of the through groove 5745. One end of the pin 5744 is fixedly connected to the outer surface of the insulating post 5742.

[0045] By setting the detection module 574, the rotating bar 5743 follows the rotating shaft 4 to rotate. Through the connection of the pin 5744 and the through groove 5745, the sliding end of the sliding rheostat 5741 moves accordingly, causing the current value of the detection circuit to change. Based on the change of instantaneous current, the speed of the dual-axis motor 573 is controlled so as to offset different impact forces through controllable elastic force.

[0046] Example 5: This example combines Examples 1 to 4 to obtain this example. It utilizes elasticity to counteract kinetic energy and reduces the kinetic energy of falling minerals by crushing and guiding the minerals, thereby avoiding damage to equipment and the problem of minerals falling off course.

[0047] This invention also discloses a method for using a feeding device for a mining conveyor, specifically including the following steps:

[0048] Step 1: Place the mineral to be transferred into the buffer groove 2 of the buffer rack 1. The mineral slides down into the buffer groove 2 and comes into contact with the flip plate 3, causing the flip plate 3 to rotate and then come into contact with the cutter 7, so that it is chopped and dispersed by the cutter 7.

[0049] Step 2: The movement of the flip plate 3 drives the slide plate 55 and the rotating bar 5743 to move synchronously via the rotating shaft 4. The rotation of the rotating bar 5743, through the connection of the pin 5744 and the through groove 5745, drives the sliding end of the sliding rheostat 5741 to move accordingly, causing the resistance of the sliding rheostat 5741 to change, and causing the current value of the detection circuit to change. Based on the duration of the change, the instantaneous current change is obtained to control the speed of the dual-axis motor 573. The dual-axis motor 573 drives the fan blade 575 to rotate, thereby pumping outside air into the airbag 54 through the air intake pipe 571 and the one-way valve 572. With the action of the solenoid valve 577, the air inside the airbag 54 is discharged through the exhaust pipe 576, controlling the internal pressure of the airbag 54. In conjunction with the expansion and contraction of the airbag 54 itself, the kinetic energy of the flip plate 3 rotation is counteracted.

[0050] Step 3: The shredded minerals come into contact with the baffle 10, causing the baffle 10 to rotate. The rotation of the baffle 10 guides the minerals, causing the shredded minerals to slide slowly downwards. At the same time, the output end of the spring rod 15 is stretched to counteract the kinetic energy of the minerals falling. The shaft rod 11 drives the abutment bar 14 to move. Through the contact between the abutment bar 14 and the abutment block 13, the rotation of the baffle 10 is limited.

[0051] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a mining conveyor, comprising a buffer frame (1), characterized in that: The buffer frame (1) is provided with a buffer mechanism inside. The buffer mechanism includes a buffer groove (2). A flap (3) is movably connected inside the buffer groove (2). A rotating shaft (4) is fixedly connected through the body of the flap (3). The outer surface of the rotating shaft (4) is rotatably connected through the body of the buffer frame (1). A connecting groove (6) is opened on the outer surface of the flap (3). A cutter (7) is movably connected inside the connecting groove (6). The outer surface of the cutter (7) is rotatably connected to the inside of the buffer groove (2). A rotating rod (8) is fixedly connected through the body of the cutter (7). The outer surface of the rotating rod (8) is rotatably connected to the inside of the buffer groove (2). The outer surface of the rotating rod (8) is rotatably connected through the body of the buffer frame (1). A drive motor (9) is fixedly connected to one end of the rotating rod (8) through a coupling. The drive motor (9) is fixedly installed on the outer surface of the buffer frame (1). The rotating shaft (4) is provided with a counteracting component (5). The counteracting component (5) includes a ring (51). The outer surface of the ring (51) is fixedly connected to the outer surface of the buffer frame (1) through a fixed rod (52). A fixed plate (53) is fixedly connected to the outer surface of the ring (51). An airbag (54) is fixedly connected to the outer surface of the fixed plate (53). A sliding plate (55) is fixedly connected to the outer surface of the airbag (54). The body of the sliding plate (55) is slidably connected to the outer surface of the ring (51). A connecting plate (56) is fixedly connected to the outer surface of the sliding plate (55). The outer surface of the connecting plate (56) is fixedly connected to the outer surface of the rotating shaft (4). The airbag (54) is provided with a pressure control unit (57) on its exterior. The pressure control unit (57) includes an air intake pipe (571). One end of the air intake pipe (571) is connected to a one-way valve (572). The interior of the one-way valve (572) is in through communication with the interior of the airbag (54). A dual-axis motor (573) is fixedly connected inside the air intake pipe (571). One output end of the dual-axis motor (573) is fixedly connected to a fan blade (575). The outer surface of the fan blade (575) is movably connected to the interior of the air intake pipe (571). An exhaust pipe (576) is connected inside the air intake pipe (571). The interior of the exhaust pipe (576) is in through communication with the interior of the airbag (54). A solenoid valve (577) is provided on the outer surface of the exhaust pipe (576). The dual-axis motor (573) is provided with a detection module (574) on its exterior. The detection module (574) includes a sliding rheostat (5741). The outer surface of the sliding rheostat (5741) is fixedly connected to the outer surface of the buffer frame (1). An insulating column (5742) is fixedly connected to the sliding end of the sliding rheostat (5741). A rotating bar (5743) is movably connected to the outer surface of the insulating column (5742). The outer surface of the rotating bar (5743) is fixedly connected to the outer surface of the rotating shaft (4). The outer surface of the rotating bar (5743) is movably connected to a pin (5744), the body of the rotating bar (5743) is provided with a through groove (5745), the outer surface of the pin (5744) is movably connected to the inside of the through groove (5745), and one end of the pin (5744) is fixedly connected to the outer surface of the insulating column (5742).

2. The feeding device for a mining conveyor according to claim 1, characterized in that: The cutter (7) is provided with a baffle (10) on its outside. A shaft (11) is fixedly connected to the outer surface of the baffle (10). A support plate (12) is rotatably connected through the outer surface of the shaft (11). The outer surface of the support plate (12) is fixedly connected to the outer surface of the buffer frame (1). A stop block (13) is fixedly connected to the outer surface of the support plate (12). A stop bar (14) is movably connected to the outer surface of the stop block (13). The outer surface of the stop bar (14) is fixedly connected to the outer surface of the shaft (11). A spring rod (15) is rotatably connected to the outer surface of the flip plate (3). One end of the spring rod (15) is rotatably connected to the outer surface of the buffer frame (1).

3. The feeding device for a mining conveyor according to claim 2, characterized in that: The other output end of the dual-axis motor (573) is movably connected to a filter screen (578). The outer surface of the filter screen (578) is fixedly connected to the inside of the air intake pipe (571). The other output end of the dual-axis motor (573) is fixedly connected to a scraper (579). The outer surface of the scraper (579) is movably connected to the outer surface of the filter screen (578).

4. A method of using a feeding device for a mining conveyor, characterized in that: The feeding device for a mining conveyor as described in claim 3 specifically includes the following steps: Step 1: Place the mineral to be transported inside the buffer groove (2) of the buffer rack (1). The mineral slides down inside the buffer groove (2) and comes into contact with the flip plate (3), causing the flip plate (3) to rotate and then come into contact with the cutter (7) so that it is chopped and dispersed by the cutter (7). Step 2: The movement of the flip plate (3) drives the slide plate (55) and the rotating bar (5743) to follow and move synchronously through the rotating shaft (4). The rotating bar (5743) drives the sliding end of the sliding rheostat (5741) to follow and move, thereby obtaining the instantaneous change of current to control the speed of the dual-axis motor (573). In conjunction with the function of the solenoid valve (577), the internal pressure of the airbag (54) is controlled to counteract the kinetic energy of the flip plate (3) rotation. Step 3: The shredded minerals come into contact with the baffle (10), the baffle (10) rotates to guide the minerals, and at the same time the output end of the spring rod (15) is stretched to counteract the kinetic energy of the minerals falling.

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