CN114950663A - Tombarthite ore deposit breaker - Google Patents

Abstract

The invention discloses a rare earth ore crushing device, which relates to the technical field of rare earth ore crushing and comprises a crushing device main body, wherein the crushing device main body comprises a device mounting bracket, and the upper end of the device mounting bracket is provided with a rolling and screening device. According to the rare earth ore crushing device, the rolling and screening device is installed, screened rare earth ore falls onto the conveyor belt, the motor II works to drive the driving rotating roller and the conveyor belt to rotate to convey the rare earth ore to the crushing device, the side baffle and the transverse baffle block the rare earth ore at intervals to prevent the rare earth ore from rolling off, the bottom limiting block limits the side baffle to limit the rotating angle of the side baffle, the dust falling plate plays a role in installing a pump, water is pumped to the spraying pipe, the spraying pipe sprays the rare earth ore on the conveyor belt to wet the rare earth ore to fall dust, the fan plays a role in blowing and scattering water mist to enable the dust falling range to be wider, the motor III keeps dry, and the problem that the rare earth ore crushing device can generate a large amount of dust when crushing the rare earth ore is solved.

Description

A rare earth ore crushing device

technical field

The invention relates to the technical field of rare earth ore crushing, in particular to a rare earth ore crushing device.

Background technique

Rare earth ore needs to be crushed after being mined to break large pieces of rare earth ore into very fine ore particles, and then carry out the wet or pyrotechnic extraction process of rare earth ore after corresponding treatment. At present, the crushing of rare earth ore is divided into coarse crushing and fine crushing (also called pre-crushing and crushing) and other steps, and a crushing device is required. The above crushing machinery, crushing operations are often divided into coarse crushing, medium crushing and fine crushing according to the size of the feeding and discharging particle size. Commonly used crushing machinery includes jaw crusher, impact crusher, hammer crusher, compound crusher, gyratory crusher, cone crusher, roller crusher and so on. The following problems exist for the prior art:

1. In the prior art, when the existing rare earth ore crushing device crushes the rare earth ore, a large amount of dust will be generated, and a large amount of dust will be raised outwards;

2. In the prior art, during crushing, some large particles of rare earth ore will cause severe wear inside the rare earth ore crushing device, affecting its service life, and poor practicability. After the crushing is completed, it needs to be filtered and screened, and the crushing efficiency is low.

SUMMARY OF THE INVENTION

The present invention provides a rare earth ore crushing device, one of which is to perform pre-grinding treatment and dust reduction treatment on rare earth ore, and solve the problem that the existing rare earth ore crushing device will generate a large amount of dust when crushing rare earth ore. The other purpose is to solve the problem that some large particles of rare earth ore will cause severe wear inside the rare earth ore crushing device during crushing, affecting its service life and poor practicability. After the crushing is completed, it needs to be filtered and screened. Lower problems to achieve the effect of filtering at the same time as crushing.

For solving the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A rare earth ore crushing device includes a crushing device main body, the crushing device main body includes a device mounting bracket, the upper end of the device mounting bracket is provided with a rolling and screening device, and a crushing device is provided below the rolling and screening device, The rolling and screening device includes a crushing frame, a motor, a rolling block, a screen, a second motor and a pump, the lower surface of the crushing frame is fixedly connected with the upper surface of the device mounting bracket, and the crushing device includes a crushing cylinder. , motor three and arc screen, the upper surface of the crushing drum is provided with a feeding port.

A further improvement of the technical solution of the present invention is that the outer surface of the motor is fixedly connected to the outer surface of the crushing frame, the output shaft of the motor is fixedly installed with a rotating shaft, and one end of the rotating shaft is movably connected to the inner surface of the crushing frame A fixed installation sleeve is fixedly installed on the outer surface of the rotating shaft, a telescopic sleeve is fixedly installed on the outer surface of the fixed installation sleeve, and an elastic gasket is fixedly installed on the inner wall of the telescopic sleeve.

A further improvement of the technical solution of the present invention is that the two ends of the rolling block are hinged with shock-absorbing connecting rods, one end of the shock-absorbing connecting rod is hinged with the outer surface of the fixed installation sleeve, and one side surface of the rolling block is hinged. A telescopic rod is fixedly installed, the outer surface of the telescopic rod is slidably connected with the inner surface of the telescopic sleeve, the upper end of the telescopic rod is in contact with one end of the elastic gasket, and the other side surface of the rolling block is evenly distributed with Apply pressure to the broken teeth.

A further improvement of the technical solution of the present invention is that: the side surface of the screen is slidably connected to the inner surface of the crushing frame, the upper surface of the screen is in contact with the lower surface of the crushing teeth, and the lower surface of the screen is in contact with the lower surface of the crushing teeth. There are support inner rods fixedly installed on both sides, the outer side of the support inner rod is provided with a support outer rod, the lower end of the support outer rod is fixedly connected with the inner wall of the crushing frame, and the outer surface of the support inner rod is connected with the outer surface of the support outer rod. The inner surface is movably connected, the lower end of the inner support rod is hinged with a spring hinge rod, and the lower end of the spring hinge rod is hinged with the inner wall of the support outer rod.

A further improvement of the technical solution of the present invention is that the outer surface of the second motor is fixedly connected to the outer surface of the device mounting bracket, the output shaft of the second motor is fixedly installed with an active rotating roller, and one end of the active rotating roller is installed with the device The inner side walls of the bracket are movably connected, a driven rotating roller is arranged on one side of the active rotating roller, a conveyor belt is movably installed on the outer surface of the active rotating roller, and side baffles are fixedly installed on both sides of the outer surface of the conveyor belt, A bottom limit block is fixedly installed on the lower surface of the side baffles, a lateral baffle is hinged between the side baffles, and the lower surface of the lateral baffle is in contact with the upper surface of the bottom limit block.

A further improvement of the technical solution of the present invention is that: the lower surface of the pump is fixedly installed with a dust-reducing plate, the two sides of the dust-reducing plate are respectively fixedly connected to the outer surfaces of the crushing frame and the crushing cylinder, and the upper surface of the dust-reducing plate is fixedly installed There is an air inlet network, a spray pipe is fixedly installed on the top of the inner surface of the dust-reducing plate, the inner wall of the spray pipe is fixedly connected with the water outlet pipe of the pump, and a spray head is fixedly installed on the lower surface of the spray pipe. A fan is fixedly installed on the side wall of the dust suppression plate.

A further improvement of the technical solution of the present invention is that the lower surface of the third motor is fixedly connected to the upper surface of the crushing cylinder, the output shaft of the third motor is fixedly installed with a crushing rotating rod, and the outer surface of the crushing rotating rod is fixedly installed with a crushing rotating rod. A crushing knife, a small grinding head and a rotating support rod, the lower surface of the small grinding head is in contact with the upper surface of the arc-shaped screen, and one end of the rotating support rod is slidably connected with the upper surface of the arc-shaped screen, The upper surface of the arc-shaped screen is provided with a chute adapted to the rotating support rod.

A further improvement of the technical solution of the present invention is that a rotating sleeve is fixedly installed on the lower surface of the arc-shaped screen, the lower end of the rotating sleeve is sleeved with an extrusion support rod, and the lower end of the extrusion support rod is provided with a fixing seat A support plate is fixedly installed on the lower surface of the fixed seat, the side surface of the support plate is fixedly connected with the bottom inner wall of the crushing cylinder, and the two sides of the support plate are provided with discharge ports.

A further improvement of the technical solution of the present invention is that a rotating support ball is arranged in the middle of the fixed seat, the upper surface of the rotating support ball is sleeved with the lower surface of the extrusion support rod, and the bottoms of both sides of the rotating support ball are hinged There are magnet balls, and connecting spring rods are fixedly installed between the magnet balls.

Owing to having adopted the above-mentioned technical scheme, the technical progress achieved by the present invention is relative to the prior art:

1. The present invention provides a rare earth ore crushing device. By installing a rolling screening device, the rare earth ore is put into the crushing frame, the motor works to drive the rotating shaft and the fixed installation sleeve to rotate, and the shock-absorbing connecting rod connects the rolling block and the fixed installation. The rolling block rotates with the fixed installation sleeve, and the crushing teeth reduce the contact area between the rolling block and the rare earth ore and increase the pressure to perform preliminary grinding and crushing of the rare earth ore. The telescopic elastic gasket inside the telescopic sleeve plays the role of squeezing the rolling block downward and buffering, and the screen screen screens the ground rare earth ore, so that the larger particle ore continues to be ground and broken into small particles, so as to avoid damage to the crushed rare earth ore. The crushing device causes wear and tear, and the support inner rod and the support outer rod cooperate with each other. When subjected to vibration, the spring hinge rod shrinks and rotates, so that the support inner rod moves inside the support outer rod, causing the screen to vibrate. It is better to screen rare earth ore and solve the problem. During crushing, some large particles of rare earth ore will cause severe wear inside the rare earth ore crushing device, affecting its service life and poor practicability.

2. The present invention provides a rare earth ore crushing device. By installing a rolling and screening device, the screened rare earth ore falls onto the conveyor belt, and the second motor drives the active rotating roller and the conveyor belt to rotate to transport the rare earth ore to the crushing device. The baffle and the horizontal baffle block the rare earth ore at intervals to prevent it from rolling down. The bottom limit block restricts the side baffle to limit the rotation angle. The dust suppression plate plays the role of installing the pump, and the pump water is supplied to the sprayer. The spray pipe sprays the rare earth ore on the conveyor belt to make it moist and dust-removing, and the fan plays the role of blowing the water mist to make the dust-reducing range wider and keep the motor 3 dry, solving the problem of the existing rare-earth ore crushing device. Rare earth ore will produce a lot of dust when it is crushed.

3. The present invention provides a rare earth ore crushing device. By installing the crushing device, the motor three works to drive the crushing rotating rod and the crushing knife to rotate, and the rare earth ore entering the crushing cylinder from the feeding port is crushed. The curved screen serves as a filter. It can filter the incompletely broken rare earth ore. The rotating sleeve, the extrusion support rod and the fixed seat cooperate with each other to play the role of buffering and shock absorption. The magnet ball is placed inside the fixed seat in the order of positive pole - positive pole - negative pole - negative pole Arrangement, using the principle of repulsion and attraction of the same sex, the rotating support ball plays the role of supporting the arc screen and buffering and damping, the connecting spring rod plays the role of connecting the magnet ball, and the rotating support rod rotates the rod with the crushing. It is better to filter the rare earth ore by rotating and pushing the arc screen to rotate, and the small grinding head will further grind the intercepted rare earth ore with the rotation of the crushing rotating rod. The problem of low crushing efficiency, in order to achieve the effect of filtering at the same time of crushing.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a schematic cross-sectional view of the structure of the present invention;

Figure 3 is a schematic cross-sectional view of the structural rolling block of the present invention;

Fig. 4 is the enlarged schematic diagram of structure A of the present invention;

5 is an enlarged schematic view of the structure B of the present invention;

6 is a schematic cross-sectional view of the structural conveyor belt of the present invention.

In the figure: 1. Main body of crushing device; 11. Device mounting bracket; 2. Rolling and screening device; 21. Crushing frame; 22. Motor; 221. Rotating shaft; Gasket; 23, rolling block; 231, pressure crushing tooth; 232, shock-absorbing connecting rod; 233, telescopic rod; 24, screen mesh; 241, supporting inner rod; 242, supporting outer rod; 243, spring hinged rod ;25, Motor 2; 251, Active rotating roller; 252, Conveyor belt; 253, Side baffle; 2531, Bottom limit block; 254, Horizontal baffle; 26, Pump; 261, Spray pipe; 262, Fan; 263 , dust suppression plate; 2631, air inlet network; 3, crushing device; 31, crushing cylinder; 311, feeding port; 32, motor three; 321, crushing rotating rod; 322, crushing knife; 323, small grinding head; 324 , rotating support rod; 33, arc screen; 331, rotating sleeve; 332, extrusion support rod; 333, fixed seat; 3331, rotating support ball; 3332, magnet ball; 3333, connecting spring rod; 334, support plate ; 335, the discharge port.

Detailed ways

Below in conjunction with embodiment, the present invention is described in further detail:

Example 1

As shown in Figures 1-6, the present invention provides a rare earth ore crushing device, including a crushing device main body 1, the crushing device main body 1 includes a device mounting bracket 11, and the upper end of the device mounting bracket 11 is provided with a rolling screening device 2, A crushing device 3 is arranged below the rolling and screening device 2. The rolling and screening device 2 includes a crushing frame 21, a motor 22, a rolling block 23, a screen 24, a second motor 25 and a pump 26. The upper surface of the device mounting bracket 11 is fixedly connected. The crushing device 3 includes a crushing cylinder 31, a third motor 32 and an arc screen 33. The upper surface of the crushing cylinder 31 is provided with a feeding port 311. The outer surface of the motor 22 is connected to the crushing frame. The outer surface of 21 is fixedly connected, the output shaft of the motor 22 is fixedly installed with a rotating shaft 221, one end of the rotating shaft 221 is movably connected with the inner surface of the crushing frame 21, and the outer surface of the rotating shaft 221 is fixedly installed with a fixed installation sleeve 222, fixed installation A telescopic sleeve 2221 is fixedly installed on the outer surface of the sleeve 222, an elastic washer 2222 is fixedly installed on the inner wall of the telescopic sleeve 2221, the two ends of the rolling block 23 are hinged with a shock-absorbing connecting rod 232, and one end of the shock-absorbing connecting rod 232 is fixedly installed with The outer surface of the sleeve 222 is hinged, a telescopic rod 233 is fixedly installed on one side surface of the rolling block 23, the outer surface of the telescopic rod 233 is slidably connected with the inner surface of the telescopic sleeve 2221, and the upper end of the telescopic rod 233 is connected with one end of the elastic washer 2222. In contact, the crushing teeth 231 are evenly distributed on the other side surface of the rolling block 23 .

In this embodiment, the rare earth ore is put into the crushing frame 21, the motor 22 works to drive the rotating shaft 221 and the fixed installation sleeve 222 to rotate, and the shock-absorbing connecting rod 232 connects the rolling block 23 and the fixed installation sleeve 222 and performs buffering and shock absorption. The rolling block 23 rotates with the fixed installation sleeve 222, and the crushing teeth 231 are pressed to reduce the contact area between the rolling block 23 and the rare earth ore and increase the pressure to perform preliminary grinding and crushing of the rare earth ore. The inner telescopic elastic spacer 2222 of the sleeve 2221 plays the role of pressing the rolling block 23 downward and buffering.

Example 2

As shown in Figures 1-6, on the basis of Embodiment 1, the present invention provides a technical solution: the side surface of the screen 24 is slidably connected to the inner surface of the crushing frame 21, and the upper surface of the screen 24 is connected to the pressure crusher The lower surfaces of the teeth 231 are in contact with each other, the inner support rods 241 are fixedly installed on both sides of the lower surface of the screen 24 , the outer support rods 242 are arranged on the outside of the inner support rods 241 , and the lower ends of the outer support rods 242 are fixed to the inner wall of the crushing frame 21 . Connection, the outer surface of the support inner rod 241 is movably connected with the inner surface of the support outer rod 242, the lower end of the support inner rod 241 is hinged with a spring hinge rod 243, the lower end of the spring hinge rod 243 is hinged with the inner wall of the support outer rod 242, the motor two The outer surface of 25 is fixedly connected with the outer surface of the device mounting bracket 11, the output shaft of the motor two 25 is fixedly installed with an active rotating roller 251, one end of the active rotating roller 251 is movably connected with the inner side wall of the device mounting bracket 11, and the active rotating roller 251 One side is provided with a driven rotating roller, the outer surface of the active rotating roller 251 is movably installed with a conveyor belt 252, the outer surface of the conveyor belt 252 is fixedly installed with side baffles 253 on both sides, and the lower surface of the side baffle 253 is fixedly installed with a bottom limiter. A lateral baffle 254 is hinged between the position block 2531 and the side baffles 253 , and the lower surface of the lateral baffle 254 is in contact with the upper surface of the bottom limit block 2531 .

In the present embodiment, the screen 24 screens the crushed rare earth ore, so that the ore with larger particles continues to be ground and crushed into small particles, so as to avoid wear and tear on the crushing device, and the support inner rod 241 and the support outer rod 242 are mutually In cooperation, when subjected to vibration, the spring hinge rod 243 shrinks and rotates, so that the support inner rod 241 moves inside the support outer rod 242 and causes the screen 24 to vibrate to better screen rare earth ores.

Example 3

As shown in Figures 1-6, on the basis of Embodiment 1, the present invention provides a technical solution: a dust-reducing plate 263 is fixedly installed on the lower surface of the pump 26, and the two sides of the dust-reducing plate 263 are respectively connected to the crushing frame 21 and the crushing cylinder. The outer surface of 31 is fixedly connected, the upper surface of the dust suppression plate 263 is fixedly installed with an air inlet net 2631, the top of the inner surface of the dust suppression plate 263 is fixedly installed with a spray pipe 261, and the inner wall of the spray pipe 261 is fixedly connected with the water outlet pipe of the pump 26. , a spray head is fixedly installed on the lower surface of the spray pipe 261, a fan 262 is fixedly installed on the side wall of the dust suppression plate 263, the lower surface of the motor three 32 is fixedly connected with the upper surface of the crushing cylinder 31, and the output shaft of the motor three 32 is fixedly installed There is a crushing rotating rod 321, the outer surface of the crushing rotating rod 321 is fixedly installed with a crushing knife 322, a small grinding head 323 and a rotating support rod 324, and the lower surface of the small grinding head 323 is in contact with the upper surface of the arc screen 33 One end of the rotating support rod 324 is slidably connected to the upper surface of the arc-shaped screen 33 , and the upper surface of the arc-shaped screen 33 is provided with a chute adapted to the rotating support rod 324 .

In this embodiment, the screened rare earth ore falls on the conveyor belt 252, the motor 2 25 works to drive the active rotating roller 251 and the conveyor belt 252 to rotate to transport the rare earth ore to the crushing device 3, the side baffle 253 and the transverse baffle 254 The rare earth ore is blocked at intervals to prevent it from rolling down. The bottom limit block 2531 limits the side baffle 253 to limit the rotation angle. The dust suppression plate 263 plays the role of installing the pump 26, and the pump 26 provides water to the sprayer. The spray pipe 261 sprays the rare earth ore on the conveyor belt 252 to moisten and reduce dust, and the fan 262 plays the role of blowing the water mist to make the dust fall wider and keep the motor 332 dry.

Example 4

As shown in Figures 1-6, on the basis of Embodiment 1, the present invention provides a technical solution: a rotating sleeve 331 is fixedly installed on the lower surface of the arc-shaped screen 33, and the lower end of the rotating sleeve 331 is sleeved with an extrusion support Rod 332, the lower end of the extrusion support rod 332 is provided with a fixed seat 333, the lower surface of the fixed seat 333 is fixedly installed with a support plate 334, the side surface of the support plate 334 is fixedly connected with the bottom inner wall of the crushing cylinder 31, and the two sides of the support plate 334 are fixedly connected. A discharge port 335 is provided on the side, and a rotating support ball 3331 is disposed in the middle of the fixed seat 333. The upper surface of the rotating support ball 3331 is sleeved with the lower surface of the extrusion support rod 332, and the bottoms of the two sides of the rotating support ball 3331 are hinged with magnets. A connecting spring rod 3333 is fixedly installed between the ball 3332 and the magnet ball 3332 .

In this embodiment, the motor three 32 works to drive the crushing rotating rod 321 and the crushing knife 322 to rotate, and crush the rare earth ore entering the crushing cylinder 31 from the feeding port 311. The completely crushed rare earth ore is filtered. The rotating sleeve 331, the extrusion support rod 332 and the fixed seat 333 cooperate with each other to buffer and shock. Arrangement, using the principle of same-sex repulsion and opposite-sex attraction, the rotating support ball 3331 plays the role of supporting the arc screen 33 and buffering and damping, the connecting spring rod 3333 plays the role of connecting the magnet ball 3332, and the rotating support rod 324 As the crushing rotating rod 321 rotates and pushes the arc-shaped screen 33 to rotate, the rare earth ore is better filtered, and the small grinding head 323 further crushes the intercepted rare earth ore as the crushing rotating rod 321 rotates.

The working principle of the rare earth ore crushing device is described in detail below.

As shown in Figures 1-6, first, put rare earth ore into the crushing frame 21, the motor 22 works to drive the rotating shaft 221 and the fixed installation sleeve 222 to rotate, and the damping connecting rod 232 serves to connect the rolling block 23 and the fixed installation sleeve 222. To perform the function of buffering and shock absorption, the rolling block 23 rotates with the fixed installation sleeve 222, and the crushing teeth 231 are pressed to reduce the contact area between the rolling block 23 and the rare earth ore and increase the pressure to perform preliminary grinding and crushing of the rare earth ore. The screen 24 screens the crushed rare earth ore, so that the larger particle ore continues to be milled and broken into small particles, and the screened rare earth ore falls onto the conveyor belt 252, and the motor 25 works to drive the active rotating roller 251 and The conveyor belt 252 rotates to transport the rare earth ore to the crushing device 3, the side baffle 253 and the lateral baffle 254 block the rare earth ore to prevent it from rolling down, and the bottom limit block 2531 limits the side baffle 253 to make it rotate. The angle is limited, the dust suppression plate 263 plays the role of installing the pump 26, the pump 26 pumps water to the spray pipe 261, and the spray pipe 261 sprays the rare earth ore on the conveyor belt 252 to make it wet and dust-removing, and finally, the motor three 32 works The crushing rotating rod 321 and the crushing knife 322 are driven to rotate to crush the rare earth ore entering the crushing cylinder 31 from the feeding port 311, and the arc screen 33 plays the role of filtering to filter the incompletely crushed rare earth ore.

The present invention has been generally described in detail above, but on the basis of the present invention, some modifications or improvements can be made, which will be obvious to those skilled in the art. Therefore, any modification or improvement without departing from the spirit of the present invention is within the protection scope of the present invention.

Claims (9)

1. A rare earth ore crushing device, comprising a crushing device main body (1), and the crushing device main body (1) includes a device mounting bracket (11), characterized in that: the upper end of the device mounting bracket (11) is provided with A rolling and screening device (2), a crushing device (3) is provided below the rolling and screening device (2), and the rolling and screening device (2) includes a crushing frame (21), a motor (22), a The pressing block (23), the screen (24), the second motor (25) and the pump (26), the lower surface of the crushing frame (21) is fixedly connected with the upper surface of the device mounting bracket (11), the crushing device (3) It includes a crushing drum (31), a third motor (32) and an arc screen (33). The upper surface of the crushing drum (31) is provided with a feeding port (311). 2. A rare earth ore crushing device according to claim 1, characterized in that: the outer surface of the motor (22) is fixedly connected to the outer surface of the crushing frame (21), and the output shaft of the motor (22) A rotating shaft (221) is fixedly installed, one end of the rotating shaft (221) is movably connected with the inner surface of the crushing frame (21), and a fixed installation sleeve (222) is fixedly installed on the outer surface of the rotating shaft (221), A telescopic sleeve (2221) is fixedly installed on the outer surface of the fixed installation sleeve (222), and an elastic gasket (2222) is fixedly installed on the inner wall of the telescopic sleeve (2221). 3. A rare earth ore crushing device according to claim 1, characterized in that: both ends of the rolling block (23) are hinged with shock-absorbing connecting rods (232), and the shock-absorbing connecting rods (232) One end of the rolling block (23) is hinged with the outer surface of the fixed installation sleeve (222), a telescopic rod (233) is fixedly installed on one side surface of the rolling block (23), and the outer surface of the telescopic rod (233) is connected to the telescopic sleeve (2221). ), the upper end of the telescopic rod (233) is in contact with one end of the elastic washer (2222), and the other side surface of the rolling block (23) is evenly distributed with pressing and crushing teeth (231). ). 4. A rare earth ore crushing device according to claim 1, characterized in that: the side surface of the screen (24) is slidably connected to the inner surface of the crushing frame (21), and the screen (24) is The upper surface is in contact with the lower surface of the pressing and crushing teeth (231), and inner support rods (241) are fixedly installed on both sides of the lower surface of the screen mesh (24), and the outer side of the inner support rod (241) is provided with A supporting outer rod (242), the lower end of the supporting outer rod (242) is fixedly connected with the inner wall of the crushing frame (21), and the outer surface of the supporting inner rod (241) is movable with the inner surface of the supporting outer rod (242) The lower end of the inner support rod (241) is hinged with a spring hinge rod (243), and the lower end of the spring hinge rod (243) is hinged with the inner wall of the outer support rod (242). 5. A rare earth ore crushing device according to claim 1, characterized in that: the outer surface of the second motor (25) is fixedly connected with the outer surface of the device mounting bracket (11), and the second motor (25) The output shaft of the device is fixedly installed with an active rotating roller (251), one end of the active rotating roller (251) is movably connected to the inner side wall of the device mounting bracket (11), and one side of the active rotating roller (251) is provided with a A conveyor belt (252) is movably installed on the outer surface of the active rotation roller (251), side baffles (253) are fixedly installed on both sides of the outer surface of the conveyor belt (252), and the side baffles ( 253) is fixedly installed with a bottom limit block (2531) on the lower surface, a lateral baffle (254) is hinged between the side baffles (253), and the lower surface of the lateral baffle (254) is limited to the bottom The upper surfaces of the blocks (2531) are in contact. 6 . The rare earth ore crushing device according to claim 1 , wherein a dust-reducing plate ( 263 ) is fixedly installed on the lower surface of the pump ( 26 ), and two sides of the dust-reducing plate ( 263 ) are respectively connected to the The outer surfaces of the crushing frame (21) and the crushing cylinder (31) are fixedly connected, the upper surface of the dust-reducing plate (263) is fixedly installed with an air inlet screen (2631), and the top of the inner surface of the dust-reducing plate (263) is fixedly installed There is a spray pipe (261), the inner wall of the spray pipe (261) is fixedly connected with the water outlet pipe of the pump (26), a spray head is fixedly installed on the lower surface of the spray pipe (261), and the dust suppression plate A fan (262) is fixedly mounted on the side wall of (263). 7. A rare earth ore crushing device according to claim 1, characterized in that: the lower surface of the third motor (32) is fixedly connected with the upper surface of the crushing cylinder (31), and the third motor (32) is A crushing rotating rod (321) is fixedly installed on the output shaft, and a crushing knife (322), a small grinding head (323) and a rotating support rod (324) are fixedly installed on the outer surface of the crushing rotating rod (321). The lower surface of the grinding head (323) is in contact with the upper surface of the arc-shaped screen (33), and one end of the rotating support rod (324) is slidably connected with the upper surface of the arc-shaped screen (33). The upper surface of the shaped screen (33) is provided with a chute adapted to the rotating support rod (324). 8 . The rare earth ore crushing device according to claim 1 , wherein a rotating sleeve ( 331 ) is fixedly installed on the lower surface of the arc screen ( 33 ), and a lower end of the rotating sleeve ( 331 ) is fixedly installed. 9 . An extrusion support rod (332) is sleeved, the lower end of the extrusion support rod (332) is provided with a fixing seat (333), and a support plate (334) is fixedly installed on the lower surface of the fixing seat (333), so The side surface of the support plate (334) is fixedly connected with the bottom inner wall of the crushing cylinder (31), and the two sides of the support plate (334) are provided with discharge ports (335). 9 . The rare earth ore crushing device according to claim 8 , wherein a rotating support ball ( 3331 ) is arranged in the middle of the fixed seat ( 333 ), and the upper surface of the rotating support ball ( 3331 ) is in contact with the The lower surface of the extrusion support rod (332) is sleeved, the bottom of the two sides of the rotating support ball (3331) is hinged with magnet balls (3332), and a connection spring rod (3333) is fixedly installed between the magnet balls (3332). ).

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