Graphite production crushing and screening device

Abstract

The utility model provides a crushing and screening device for graphite production, and belongs to the technical field of graphite production. The crushing and screening device for graphite production comprises a main body and a grinding mechanism, the main body comprises a crushing box, a pair of mounting frames are arranged on the inner wall of the crushing box, a pair of mounting rods are inserted into the mounting frames, one ends of the pair of mounting rods are rotationally connected with the crushing box, and a pair of transverse plates is mounted on each of the two sides of the inner wall, close to the bottom end, of each mounting frame; the grinding mechanism comprises a base, a sliding groove is formed in the base, linear motors are installed on the two sides of the outer portion of the base, fixing frames are installed at the output ends of the linear motors, a grinding cylinder is installed between the pair of fixing frames, the grinding cylinder is slidably connected with the sliding groove, and a mounting frame is installed at the top end of the base. Sliding rods are mounted in the mounting frame, a cylinder cover is mounted between the pair of sliding rods, a rotating rod is rotationally inserted in the center of the interior of the cylinder cover, and a grinding block is mounted at the bottom end of the rotating rod.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite production, in particular to a graphite production crushing and screening device. Background Art

[0002] Graphite is an allotrope of carbon, a gray-black, opaque solid. Natural graphite comes from graphite deposits. It can also be made from petroleum coke, asphalt coke, etc., and processed through a series of processes to produce artificial graphite. Graphite can be used as an anti-wear agent and lubricant. High-purity graphite is used as a neutron moderator in atomic reactors. It can also be used to make crucibles, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, arc furnaces, arc lamps, and pencil refills. In the production process of graphite, it needs to be crushed and screened, so a crushing and screening device is needed.

[0003] For example, a Chinese patent with publication number CN213315442U discloses a graphite production crushing and screening device, including a box body, the top of the box body is connected to a feed rod, the front of the box body is movably connected to a material taking door, the back of the box body is fixedly connected to a rotating motor, the output shaft of the rotating motor passes through the inner cavity of the box body and is fixedly connected to a crushing structure, a first bearing is fixedly installed on the left side wall of the inner cavity of the box body, a crushing auger is fixedly connected to the inner side of the first bearing, a protective shell is fixedly installed on the right side of the box body, the inner bottom wall of the protective shell is fixedly connected to a working motor, and the output shaft of the working motor is fixedly connected to a connecting rod with one end passing through the inner cavity of the box body and fixedly connected to the crushing auger. The graphite production crushing and screening device has a simple overall structure, improves the screening accuracy during graphite production, avoids the occurrence of large differences in graphite particle size after screening, and is easy to use;

[0004] The technical solution recorded in this proposal drives the change of the height position of the sleeve block during the rotation of the rotating rod, and realizes the up and down vibration of the first screen plate by pulling the chain. The smaller graphite particles fall onto the second screen plate, and the second screen plate is vibrated up and down by the operation of the electric push rod. However, in actual use, only the crushed graphite can be filtered and screened, but the large particles of graphite after screening cannot be crushed again. Utility Model Content

[0005] The utility model aims to provide a graphite production crushing and screening device to solve the problem in the above background technology that the screened large-particle graphite cannot be crushed again.

[0006] The utility model is achieved in this way:

[0007] A graphite production crushing and screening device comprises a main body and a grinding mechanism, the main body comprises a crushing box, the inner wall of the crushing box is provided with a pair of mounting frames, a pair of mounting rods are inserted in the interior of the mounting frame, one end of the pair of mounting rods is rotatably connected to the crushing box, the mounting frame is provided with a pair of cross plates on both sides of the inner wall near the bottom end, and a screen plate is slidably inserted between the cross plates on both sides, the grinding mechanism comprises a base, a slide groove is provided inside the base, linear motors are installed on both sides of the outside of the base, a fixed frame is installed between the output end of the linear motor, a grinding cylinder is installed between the pair of fixed frames, the grinding cylinder is slidably connected with the slide groove, a mounting frame is installed at the top of the base, a sliding rod is installed inside the mounting frame, a cylinder cover is installed between the pair of sliding rods, a rotating rod is rotatably inserted at the inner center of the cylinder cover, and a grinding block is installed at the bottom end of the rotating rod.

[0008] Furthermore, a grinding layer is provided on the outside of the grinding block and the inside of the grinding cylinder, a worm gear is sleeved on the outside of the rotating rod near the upper end, a pair of U-shaped plates are installed on the upper end of the cylinder cover, a worm is rotatably connected between the pair of U-shaped plates, and the worm and the worm gear are meshed with each other.

[0009] The beneficial effect of adopting the above further scheme is that by arranging a grinding layer on the outside of the grinding block and the grinding cylinder, it is convenient to perform secondary crushing of larger graphite particles between the outside of the grinding block and the inner wall of the grinding cylinder when the grinding block rotates, and by arranging a worm gear on the outside of the upper end of the rotating rod, since the worm gear is meshed with the worm, when the worm rotates, it is easy to drive the worm gear to rotate, thereby realizing the rotation of the rotating rod to realize the rotation of the grinding block.

[0010] Furthermore, a third motor is installed on an outer side of one of the U-shaped plates, and an output end of the third motor is transmission-connected to the worm gear via a coupling.

[0011] The beneficial effect of adopting the above further solution is that by providing the third motor, since the output end of the third motor is connected to the worm through a coupling, when the third motor is started, the worm is easy to rotate.

[0012] Furthermore, a screw is rotatably connected at the inner center of the mounting frame, one end of the screw passes through the cylinder cover and extends to the outside, and is threadedly connected to the cylinder cover. A second motor is installed at the upper end of the mounting frame, and the output end of the second motor is transmission-connected to the screw through a coupling.

[0013] The beneficial effect of adopting the above further scheme is that by arranging a screw inside the mounting frame and arranging a second motor at the upper end of the mounting frame, since the output end of the second motor is connected to the screw through a coupling, when the second motor is started, the screw is easy to rotate, so that the cylinder cover connected to the outer thread of the screw can achieve the purpose of linear movement under the sliding action of the slide rod. When the bottom end of the cylinder cover is in contact with the upper end of the grinding cylinder, subsequent grinding work is convenient. When the cylinder cover is separated from the grinding cylinder, the subsequent grinding cylinder is convenient to move to the bottom end of the crushing box.

[0014] Furthermore, a pair of first movable seats are installed at the bottom end of the installation frame, a pair of second movable seats are installed on the inner wall of the crushing box, and a telescopic rod is hinged between the first movable seat and the second movable seat through a pin shaft.

[0015] The beneficial effect of adopting the above further scheme is that by setting the first movable seat and the second movable seat, and hingedly connecting the telescopic rod with the first movable seat and the second movable seat through a pin, when the telescopic rod is started, it is convenient to push a pair of mounting frames to close, thereby facilitating the subsequent screening work of the screens embedded inside the pair of mounting frames, and when the output end of the telescopic rod retracts, it is convenient to open the pair of mounting frames, so that the large-particle graphite particles remaining after the screen plate is screened fall to the bottom of the crushing box.

[0016] Furthermore, a vibration motor is installed at the inner center of the installation frame, and an eccentric block is mounted on the output end of the vibration motor. One end of the eccentric block abuts against the bottom end of the screen plate, and the screen plate is mounted with a spring at the bottom end near the cross plate.

[0017] The beneficial effect of adopting the above further scheme is that by setting a vibration motor, it can drive the eccentric block to rotate when it is working, so that the eccentric block continuously squeezes the screen plate, and then the screen plate reciprocates under the elastic force of the spring, and the crushed graphite particles on the screen plate are screened.

[0018] Furthermore, a feed hopper is installed at the upper end of the crushing box, a pair of crushing rollers are rotatably connected inside the feed hopper, and a power box is installed on the outer side of the feed hopper. One ends of the pair of crushing rollers extend through the power box to the inside and are both sleeved with gears, and the pair of gears are meshed with each other.

[0019] The beneficial effect of adopting the above further scheme is that by setting the crushing rollers, the graphite can be initially crushed, and by setting the gears, when the mutually meshing gears rotate, a pair of crushing rollers will move relative to each other to crush the graphite raw material.

[0020] Furthermore, a first motor is installed on one side of the outer wall of the power box, and an output end of the first motor is transmission-connected to one of the crushing rollers.

[0021] The beneficial effect of adopting the above further solution is that by providing the first motor, when the first motor is started, one of the crushing rollers can be easily rotated.

[0022] Furthermore, the bottom end of the crushing box is fixedly connected to the upper end of the base, and a discharge port is installed at the bottom end of the crushing box, an electromagnetic valve is sleeved on the outside of the discharge port, and the discharge port is arranged inside the chute.

[0023] The beneficial effect of adopting the above further scheme is that the discharge port and the solenoid valve are used in combination to facilitate the discharge of crushed graphite particles. By setting the discharge port inside the chute, when the grinding cylinder slides to the bottom end of the crushing box through the chute, the discharge port is located at the center of the grinding cylinder, thereby facilitating the subsequent graphite particles that need to be crushed for the second time to fall into the interior of the grinding cylinder.

[0024] The beneficial effects of the utility model are as follows: the utility model obtains a graphite production crushing and screening device through the above design, and the graphite production crushing and screening device, by slidingly setting a screen plate inside the installation frame, is convenient for screening the large graphite particles and small graphite particles after preliminary crushing, and the small graphite particles fall into the bottom of the crushing box through the mesh of the screen plate and are discharged from the discharge port. At this time, the large graphite particles remain on the upper part of the screen plate. When it is necessary to perform secondary crushing on the large graphite particles, a linear motor is set to facilitate the movement of the fixed frame, so that the grinding cylinder between a pair of fixed frames moves inside the slide groove to the crushing box. When the grinding cylinder is at the bottom, the discharge port is located at the center of the grinding cylinder. The telescopic rod is hinged between the first movable seat and the second movable seat through a pin shaft, and the mounting frame is rotatably connected to the crushing box through a rotating rod. When the output end of the telescopic rod retracts, a pair of mounting frames are opened to allow the large graphite particles remaining after screening by the screen plate to fall to the bottom of the crushing box and then fall into the interior of the grinding cylinder. The grinding cylinder is then reset by a linear motor, and the screw is rotated by a second motor, so that the cylinder cover connected to the external thread of the screw fits with the grinding cylinder under the sliding action of the sliding rod. By setting a rotating rod, the grinding block can be rotated when the rotating rod rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A three-dimensional structural diagram of a graphite production crushing and screening device provided by the utility model;

[0027] Figure 2A schematic diagram of the exploded three-dimensional structure of a graphite production crushing and screening device provided by the utility model;

[0028] Figure 3 A three-dimensional structural schematic diagram of an installation frame of a graphite production crushing and screening device provided by the utility model;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a grinding cylinder and a grinding block of a graphite production crushing and screening device provided by the utility model;

[0030] Figure 5 The utility model provides a front cross-sectional structural schematic diagram of a crushing box of a graphite production crushing and screening device.

[0031] In the figure: 100, main body; 1001, crushing box; 1002, feed hopper; 1003, power box; 1004, crushing roller; 1005, gear; 1006, first motor; 1007, mounting rod; 1008, mounting frame; 1009, cross plate; 1010, spring; 1011, sieve plate; 1012, vibration motor; 1013, first movable seat; 1014, second movable seat; 1015, telescopic rod; 1016, Discharge port; 200, grinding mechanism; 2001, base; 2002, slide; 2003, linear motor; 2004, fixed frame; 2005, grinding cylinder; 2006, mounting frame; 2007, screw; 2008, slide; 2009, second motor; 2010, cylinder cover; 2011, rotating rod; 2012, worm gear; 2013, grinding block; 2014, U-shaped plate; 2015, worm; 2016, third motor. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] The utility model provides the following technical solutions: Figure 1-Figure 5 As shown, a graphite production crushing and screening device includes a main body 100 and a grinding mechanism 200. The main body 100 includes a crushing box 1001. The inner wall of the crushing box 1001 is provided with a pair of mounting frames 1008. A pair of mounting rods 1007 are inserted inside the mounting frame 1008. One end of the pair of mounting rods 1007 is rotatably connected to the crushing box 1001. The mounting frame 1008 is provided with a pair of horizontal plates 1009 on both sides of the inner wall near the bottom. A sieve plate 1011 is slidably inserted between the horizontal plates 1009 on both sides. The grinding mechanism 200 includes a base 2001, a slide groove 2002 is provided inside the base 2001, linear motors 2003 are installed on both sides of the outside of the base 2001, a fixed frame 2004 is installed at the output end of the linear motor 2003, a grinding cylinder 2005 is installed between a pair of fixed frames 2004, and the grinding cylinder 2005 is slidably connected to the slide groove 2002, a mounting frame 2006 is installed at the top of the base 2001, a slide bar 2008 is installed inside the mounting frame 2006, a cylinder cover 2010 is installed between the pair of slide bars 2008, and the cylinder cover 2010 has a A rotating rod 2011 is inserted and rotated at the center of the crushing box 1001, and a grinding block 2013 is installed at the bottom of the rotating rod 2011. The sieve plate 1011 is slidably arranged inside the mounting frame 1008, so that the large graphite particles and small graphite particles after preliminary crushing can be easily screened. The small graphite particles fall into the bottom of the crushing box 1001 through the mesh of the sieve plate 1011, and the large graphite particles remain on the upper part of the sieve plate 1011. The mounting frame 1008 is rotatably connected to the crushing box 1001. When a pair of mounting frames 1008 are in an open state, the sieve plate 1011 is convenient for screening. The large graphite particles remaining after screening fall to the bottom of the crushing box 1001. The linear motor 2003 is provided to facilitate the movement of the fixed frame 2004, so that the grinding cylinder 2005 between a pair of fixed frames 2004 moves to the bottom end of the crushing box 1001 inside the slide 2002 to collect the large graphite particles. The grinding cylinder 2005 is reset by the linear motor 2003. When the cylinder cover 2010 is fitted with the grinding cylinder 2005, a rotating rod 2011 is provided. When the rotating rod 2011 rotates, the grinding block 2013 rotates.

[0036] Embodiment 2

[0037] Reference Figure 1-Figure 5As shown, the outside of the grinding block 2013 and the inside of the grinding cylinder 2005 are both provided with a grinding layer, the outside of the rotating rod 2011 is sleeved with a worm gear 2012 near the upper end, a pair of U-shaped plates 2014 are installed on the upper end of the cylinder cover 2010, a worm 2015 is rotatably connected between the pair of U-shaped plates 2014, the worm 2015 and the worm gear 2012 are meshed with each other, a third motor 2016 is installed on one side of the outside of one of the U-shaped plates 2014, the output end of the third motor 2016 is transmission-connected to the worm 2015 through a coupling, a screw 2007 is rotatably connected at the inner center of the mounting frame 2006, one end of the screw 2007 penetrates the cylinder cover 2010 and extends to the outside, and is threadedly connected to the cylinder cover 2010, and a second motor 2016 is installed on the upper end of the mounting frame 2006. 009, the output end of the second motor 2009 is connected to the screw 2007 through a coupling, and a grinding layer is set on the outside of the grinding block 2013 and the grinding cylinder 2005, so that when the grinding block 2013 rotates, the larger graphite particles between the outside of the grinding block 2013 and the inner wall of the grinding cylinder 2005 are secondary crushed. By setting the third motor 2016, when it is started, it is convenient for the worm 2015 to rotate, drive the worm wheel 2012 to rotate, and then realize the rotation of the rotating rod 2011 and the grinding block 2013. By setting the second motor 2009, when it is started, it is convenient for the screw 2007 to rotate, so that the barrel cover 2010 threadedly connected to the outside of the screw 2007 fits with the grinding cylinder 2005 under the sliding action of the slide bar 2008, which is convenient for subsequent grinding work.

[0038] Embodiment 3

[0039] Reference Figure 1-Figure 5As shown, a pair of first movable seats 1013 are installed at the bottom of the installation frame 1008, a pair of second movable seats 1014 are installed on the inner wall of the crushing box 1001, a telescopic rod 1015 is hinged between the first movable seat 1013 and the second movable seat 1014 through a pin shaft, a vibration motor 1012 is installed at the inner center of the installation frame 1008, an eccentric block is set at the output end of the vibration motor 1012, one end of the eccentric block is against the bottom end of the screen plate 1011, and the screen plate 1011 is close to the horizontal plate 1011. 09, the bottom end of each of the two crushing boxes 1001 is sleeved with a spring 1010, the upper end of the crushing box 1001 is installed with a feed hopper 1002, the inner part of the feed hopper 1002 is rotatably connected with a pair of crushing rollers 1004, and a power box 1003 is installed on the outer side of the feed hopper 1002, one end of the pair of crushing rollers 1004 passes through the power box 1003 and extends to the inside, and are sleeved with gears 1005, the pair of gears 1005 are meshed with each other, and a first motor 1006 is installed on one side of the outer wall of the power box 1003, and a first motor 1007 is installed on the outer wall of the power box 1003. The output end of a motor 1006 is connected to one of the crushing rollers 1004 by transmission, the bottom end of the crushing box 1001 is fixedly connected to the upper end of the base 2001, and the bottom end of the crushing box 1001 is installed with a discharge port 1016, the outer sleeve of the discharge port 1016 is provided with a solenoid valve, and the discharge port 1016 is arranged inside the chute 2002, and the telescopic rod 1015 is hinged between the first movable seat 1013 and the second movable seat 1014 through a pin shaft. When the output end of the telescopic rod 1015 When retracted, a pair of mounting frames 1008 can be opened to allow the large graphite particles remaining after screening by the sieve plate 1011 to fall to the bottom of the crushing box 1001. The discharge port 1016 and the solenoid valve can be used together to facilitate the discharge of the crushed graphite particles. By setting the discharge port 1016 inside the chute 2002, when the grinding cylinder 2005 slides to the bottom of the crushing box 1001 through the chute 2002, the graphite particles that need to be crushed for the second time can fall into the grinding cylinder 2005.

[0040] Specifically, the working principle of the graphite production crushing and screening device is as follows: when in use, firstly, the graphite raw material to be crushed is put into the feed hopper 1002, and the first motor 1006 is started to rotate the mutually meshing gears 1005 to drive a pair of crushing rollers 1004 to move relative to each other, so as to crush the graphite raw material, and the crushed graphite falls on the sieve plate 1011, and the vibration motor 1012 is started to drive the eccentric block to rotate, and the eccentric block continuously squeezes the sieve plate 1011, and the sieve plate 1011 is pressed against the spring 1012. 10 reciprocates under the elastic force of the screen plate 1011 to screen the graphite particles on the screen plate 1011. The small graphite particles pass through the mesh of the screen plate 1011 and fall into the bottom of the crushing box 1001 and are discharged from the discharge port 1016. At this time, the large graphite particles remain on the upper part of the screen plate 1011. When the large graphite particles need to be crushed for the second time, the linear motor 2003 is started to make the fixed frame 2004 drive the grinding cylinder 2005 to move inside the slide 2002 to the bottom end of the crushing box 1001. When the telescopic rod 10 When the output end of the grinding drum 15 is retracted, the pair of mounting frames 1008 are opened, so that the large graphite particles remaining after the sieve plate 1011 is sieved fall to the bottom of the crushing box 1001, and the graphite particles that need to be crushed again fall into the interior of the grinding drum 2005 through the coordinated use of the discharge port 1016 and the electromagnetic valve, and then the grinding drum 2005 is reset by the linear motor 2003, and the second motor 2009 is started to rotate the screw 2007, so that the cylinder connected to the screw 2007 by the external thread The cover 2010 is fitted with the grinding cylinder 2005 under the sliding action of the slide rod 2008, and then the third motor 2016 is started to rotate the worm 2015, driving the worm wheel 2012 to rotate, thereby realizing the rotation of the rotating rod 2011 and the grinding block 2013. Since the grinding layer is set on the outside of the grinding block 2013 and the grinding cylinder 2005, it is convenient for the larger graphite particles between the outside of the grinding block 2013 and the inner wall of the grinding cylinder 2005 to be secondary crushed when the grinding block 2013 rotates.

[0041] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A graphite production crushing and screening device, characterized in that: The invention comprises a main body (100) and a grinding mechanism (200), wherein the main body (100) comprises a crushing box (1001), the inner wall of the crushing box (1001) is provided with a pair of mounting frames (1008), a pair of mounting rods (1007) are inserted inside the mounting frames (1008), one end of the pair of mounting rods (1007) is rotatably connected to the crushing box (1001), a pair of transverse plates (1009) are installed on both sides of the inner wall of the mounting frame (1008) near the bottom end, a sieve plate (1011) is slidably inserted between the transverse plates (1009) on both sides, and the grinding mechanism (200) comprises a base (2001), a slide groove (2002) is provided inside the base (2001), and the base Linear motors (2003) are installed on both sides of the outside of (2001), a fixed frame (2004) is installed at the output end of the linear motor (2003), a grinding cylinder (2005) is installed between a pair of the fixed frames (2004), the grinding cylinder (2005) is slidably connected to the slide groove (2002), a mounting frame (2006) is installed at the top of the base (2001), a sliding rod (2008) is installed inside the mounting frame (2006), a cylinder cover (2010) is installed between the pair of sliding rods (2008), a rotating rod (2011) is rotatably inserted at the center of the cylinder cover (2010), and a grinding block (2013) is installed at the bottom end of the rotating rod (2011).

2. A graphite production crushing and screening device according to claim 1, characterized in that: The outside of the grinding block (2013) and the inside of the grinding cylinder (2005) are both provided with a grinding layer, the outside of the rotating rod (2011) is sleeved with a worm gear (2012) near the upper end, a pair of U-shaped plates (2014) are installed at the upper end of the cylinder cover (2010), a worm (2015) is rotatably connected between the pair of U-shaped plates (2014), and the worm (2015) and the worm gear (2012) are meshed with each other.

3. A graphite production crushing and screening device according to claim 2, characterized in that: A third motor (2016) is installed on one side of the outside of one of the U-shaped plates (2014), and an output end of the third motor (2016) is transmission-connected to the worm (2015) via a coupling.

4. A graphite production crushing and screening device according to claim 3, characterized in that: A screw rod (2007) is rotatably connected at the inner center of the mounting frame (2006), one end of the screw rod (2007) passes through the cylinder cover (2010) and extends to the outside, and is threadedly connected to the cylinder cover (2010). A second motor (2009) is installed at the upper end of the mounting frame (2006), and the output end of the second motor (2009) is transmission-connected to the screw rod (2007) via a coupling.

5. A graphite production crushing and screening device according to claim 1, characterized in that: A pair of first movable seats (1013) are installed at the bottom end of the installation frame (1008), and a pair of second movable seats (1014) are installed on the inner wall of the crushing box (1001). A telescopic rod (1015) is hinged between the first movable seat (1013) and the second movable seat (1014) via a pin shaft.

6. A graphite production crushing and screening device according to claim 5, characterized in that: A vibration motor (1012) is installed at the inner center of the installation frame (1008), and an eccentric block is mounted on the output end of the vibration motor (1012). One end of the eccentric block is abutted against the bottom end of the sieve plate (1011), and a spring (1010) is mounted on the bottom end of the sieve plate (1011) near the cross plate (1009).

7. A graphite production crushing and screening device according to claim 6, characterized in that: A feed hopper (1002) is installed at the upper end of the crushing box (1001), and a pair of crushing rollers (1004) are rotatably connected inside the feed hopper (1002), and a power box (1003) is installed on the outer side of the feed hopper (1002), one end of the pair of crushing rollers (1004) passes through the power box (1003) and extends to the inside, and are both sleeved with gears (1005), and the pair of gears (1005) are meshed with each other.

8. A graphite production crushing and screening device according to claim 7, characterized in that: A first motor (1006) is installed on one side of the outer wall of the power box (1003), and an output end of the first motor (1006) is transmission-connected to one of the crushing rollers (1004).

9. A graphite production crushing and screening device according to claim 8, characterized in that: The bottom end of the crushing box (1001) is fixedly connected to the upper end of the base (2001), and a discharge port (1016) is installed at the bottom end of the crushing box (1001), an electromagnetic valve is sleeved on the outside of the discharge port (1016), and the discharge port (1016) is arranged inside the chute (2002).

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