Coarse grinding vertical roller grinding device capable of protecting graphite flakes and use method of coarse grinding vertical roller grinding device

Abstract

The invention relates to the technical field of graphite production, and discloses a coarse grinding vertical roller grinding device capable of protecting graphite flakes and a use method, and solves the problem that the grinding efficiency is affected as graphite cannot enter a position between a coarse grinding block and a coarse grinding auxiliary block when the volume of part of graphite put into a tank body is too large. A supporting frame is fixedly connected to the top of the base, a coarse grinding box is fixedly connected to the top of the supporting frame, a feeding pipe is arranged at the top end of the coarse grinding box, a first discharging pipe is arranged at the bottom end of the coarse grinding box, a coarse grinding roller is arranged in the coarse grinding box, a driver used for driving the coarse grinding roller to rotate is installed on the supporting frame, and the coarse grinding roller is sleeved with a coarse grinding ring. Graphite can smoothly enter the position between the rough grinding roller and the rough grinding ring, the grinding efficiency is improved, the grinding mode is changed, the phenomenon that graphite flakes are damaged when a ball mill grinds ore is avoided, meanwhile, the ground graphite can be screened, and follow-up machining treatment is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of graphite production, and in particular relates to a rough grinding vertical roller mill device for protecting graphite flakes and a use method thereof. Background Art

[0002] Graphite is one of the softest minerals. Its uses include making pencil leads and lubricants. It is chemically inactive, corrosion-resistant, and not easily reactive with acids and alkalis. It is used as an anti-friction agent and lubricant to make crucibles, electrodes, dry batteries, and pencil leads. High-purity graphite can be used as a neutron moderator in nuclear reactors.

[0003] Among the prior art retrieved, a Chinese patent with the announcement number CN207735080U discloses a vertical roller mill for graphite production that can be multi-layered crushed. The rotation of the breaking rod can break up the graphite in the tank body and evenly distribute it, which is conducive to the uniform grinding of the graphite.

[0004] However, it is worth considering that when the volume of graphite partially put into the tank is too large, the graphite cannot enter between the coarse grinding block and the coarse grinding auxiliary block, which affects the grinding efficiency and is not convenient for promotion and use.

[0005] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a rough grinding vertical roller grinding device for protecting graphite flakes and a method of use, which effectively solves the problem in the above background technology that when the volume of part of the graphite put into the tank body is too large, the graphite cannot enter between the coarse grinding block and the coarse grinding auxiliary block, thereby affecting the grinding efficiency.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coarse grinding vertical roller mill device for protecting graphite flakes, comprising a base, a support frame is fixedly connected to the top of the base, a coarse grinding box is fixedly connected to the top of the support frame, a feed pipe is provided at the top of the coarse grinding box, a first discharge pipe is provided at the bottom of the coarse grinding box, a coarse grinding roller is provided in the coarse grinding box, a driver for driving the coarse grinding roller to rotate is installed on the support frame, a coarse grinding ring is provided on the outer sleeve of the coarse grinding roller, a hydraulic telescopic rod is fixedly connected to the top of the coarse grinding box, the telescopic end of the hydraulic telescopic rod is fixedly connected to the top of the coarse grinding ring, the coarse grinding box is installed with a filtering and separating structure located below the coarse grinding roller, and the coarse grinding box is installed with a crushing and feeding mechanism for crushing graphite.

[0008] Preferably, the driver includes a support tube fixedly mounted on the bottom end of the coarse grinding roller, the bottom end of the support tube is rotatably connected to the support frame, and the filtering separation structure is sleeved on the outside of the support tube, the support frame is fixedly mounted with a control box, the bottom of the control box is fixedly connected to a motor, the output end of the motor is fixedly connected to a first rotating shaft, the top end of the first rotating shaft is fixedly connected to a first gear located above the support frame, the first rotating shaft and the support frame are rotatably connected, and the outside of the support tube is fixedly sleeved with a second gear meshing with the first gear.

[0009] Preferably, the crushing and feeding mechanism includes a second rotating shaft arranged in the coarse grinding box, the outer sleeve of the second rotating shaft is provided with a guide platform, the guide platform is a truncated cone-shaped structure, and the bottom of the guide platform is fixedly connected to the top of the coarse grinding roller, the support tube sleeve is arranged on the outside of the second rotating shaft, and the bottom end of the second rotating shaft is rotatably connected to the bottom inner wall of the control box, the bottom end of the second rotating shaft is connected to the first rotating shaft through a reduction unit, the top end of the second rotating shaft is fixedly connected to a first fixed frame located above the guide platform, the top end of the first fixed frame is fixedly connected to two support boxes, two third rotating shafts are rotatably connected between the two support boxes, the outer fixed sleeve of the third rotating shaft is provided with a crushing roller, and the two crushing rollers are located below the feed pipe, the support box is equipped with a rotating part for driving the two third rotating shafts to rotate, a guide bucket is provided above the first fixed frame, and the two ends of the guide bucket are respectively fixedly connected to the two support boxes.

[0010] Preferably, the rotating member includes a first connecting shaft rotatably mounted on a supporting box, first bevel gears are fixedly connected to both ends of the third rotating shaft, two second bevel gears are provided on an external fixed sleeve of the first connecting shaft, and the second bevel gears are meshed with the corresponding first bevel gears, a third bevel gear is provided on the external fixed sleeve of the first connecting shaft, a second connecting shaft is rotatably connected to the supporting box, a fourth bevel gear meshed with the third bevel gear is fixedly connected to the bottom end of the second connecting shaft, a fourth gear is fixedly connected to the top end of the second connecting shaft, a second gear ring is fixedly connected to the top inner wall of the rough grinding box, and the fourth gear is meshed with the second gear ring.

[0011] Preferably, the reduction unit includes a worm wheel fixedly sleeved on the outside of the second rotating shaft, the worm wheel is located in a control box, a worm screwed in rotation inside the control box and meshing with the worm wheel, a fifth bevel gear is fixedly connected to the end of the worm screw, and a sixth bevel gear screwed with the fifth bevel gear is fixedly sleeved on the outside of the first rotating shaft.

[0012] Preferably, the filtering and separating structure includes a discharging hopper arranged below the coarse grinding roller, a filter hopper is fixedly connected to the top of the discharging hopper, the discharging hopper passes through the bottom inner wall of the coarse grinding box, a second discharging pipe is arranged at the bottom end of the discharging hopper, a first shift plate located in the coarse grinding box is fixedly installed on the outer wall of the discharging hopper, and the bottom of the first shift plate is in contact with the bottom inner wall of the coarse grinding box, a side of the first shift plate away from the discharging hopper is in contact with the inner wall of the coarse grinding box, the coarse grinding ring is installed with an elastic cleaning structure for cleaning the filter hopper, the support tube passes through the discharging hopper and the filter hopper respectively, and the discharging hopper and the support tube are rotatably connected, the support frame is installed with a collecting unit cooperating with the second discharging pipe, and the second discharging pipe and the second rotating shaft are connected through a transmission member.

[0013] Preferably, the transmission member includes a fourth rotating shaft rotatably mounted on the control box, the top end of the fourth rotating shaft is fixedly connected to the third gear located above the support frame, a first gear ring meshing with the third gear is provided above the support frame, and the first gear ring is fixedly connected to the second discharge pipe, the external fixed sleeve of the fourth rotating shaft is provided with a fifth gear located in the control box, the external fixed sleeve of the second rotating shaft is provided with a sixth gear located in the control box, and the sixth gear is meshed with the fifth gear.

[0014] Preferably, the collection unit includes an annular collection box fixedly mounted on a support frame, the annular collection box is a hollow structure with an opening at the top, a third discharge pipe is provided at the bottom of the annular collection box, the bottom end of the second discharge pipe is located in the annular collection box, the second discharge pipe is fixedly mounted with a second selector plate located in the annular collection box, the bottom of the second selector plate is in contact with the bottom inner wall of the annular collection box, and the two sides of the second selector plate are in contact with the two side inner walls of the annular collection box respectively.

[0015] Preferably, the elastic cleaning structure includes at least one cleaning brush arranged above the filter bucket, the cleaning brush and the filter bucket are in contact, at least one slide groove is provided at the bottom of the coarse grinding ring, the number of the slide grooves and the number of cleaning brushes are the same, a slider is provided in the slide groove, the top of the slider and the top inner wall of the slide groove are connected by a compression spring, the bottom of the slider is fixedly connected to a second fixing frame located below the coarse grinding ring, and the second fixing frame is fixedly connected to the corresponding cleaning brush.

[0016] The present invention also provides a method for using a rough grinding vertical roller mill device for protecting graphite flakes. Using the rough grinding vertical roller mill device for protecting graphite flakes as described above comprises the following steps:

[0017] Step 1: Use the hydraulic telescopic rod to drive the rough grinding ring to move vertically and adjust the initial distance between the rough grinding ring and the rough grinding roller;

[0018] Step 2: Put the graphite to be ground into the rough grinding box through the feed pipe, and crush the graphite through the crushing and feeding mechanism so that the crushed graphite is smaller than the distance between the rough grinding ring and the rough grinding roller;

[0019] Step 3: The rough grinding roller is driven to rotate by the driver, and the graphite is ground by the cooperation of the rough grinding roller and the rough grinding ring;

[0020] Step 4: The polished graphite is filtered and separated through a filtering and separation structure, and graphite with a particle diameter greater than a preset value is discharged through a first discharge pipe, and graphite with a particle diameter less than a preset value is discharged through a filtering and separation structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The rough grinding ring is driven to move in the vertical direction by the hydraulic telescopic rod, and the initial spacing between the rough grinding ring and the rough grinding roller is adjusted. The graphite to be ground is put into the rough grinding box through the feeding pipe, and the input graphite is crushed by the crushing and feeding mechanism so that the crushed graphite is smaller than the spacing between the rough grinding ring and the rough grinding roller. The rough grinding roller is driven to rotate by the driver, and the graphite is ground by the cooperation of the rough grinding roller and the rough grinding ring. The ground graphite is filtered and separated by the filtering and separation structure, and the graphite with a particle diameter greater than the preset value is discharged through the first discharge pipe, and the graphite with a particle diameter less than the preset value is discharged through the filtering and separation structure, ensuring that the graphite can smoothly enter between the rough grinding roller and the rough grinding ring, thereby improving the grinding efficiency, changing the grinding method, and avoiding the phenomenon that the graphite flakes are damaged during ball mill grinding. At the same time, the ground graphite can be screened for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] In the attached picture:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the rough grinding box and the rough grinding ring cut away in the present invention;

[0027] Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of the middle A;

[0028] Figure 4 is a schematic structural diagram of a second fixing frame of the present invention;

[0029] Figure 5 is a schematic structural diagram of a first fixing frame of the present invention;

[0030] Figure 6 It is a schematic structural diagram of a cutaway support box of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the cross-section of the support frame, the control box and the annular collection box of the present invention;

[0032] Figure 8 It is a schematic structural diagram of the cutaway discharge hopper and filter hopper of the present invention.

[0033] In the figure: 1, base; 2, support frame; 3, coarse grinding box; 4, feed pipe; 5, coarse grinding roller; 6, coarse grinding ring; 7, hydraulic telescopic rod; 8, discharge hopper; 9, filter hopper; 10, first discharge pipe; 11, first dial plate; 12, second discharge pipe; 13, support pipe; 14, control box; 15, motor; 16, first rotating shaft; 17, first gear; 18, second gear; 19, third gear; 20, first gear ring; 21, annular collection box; 22, third discharge pipe; 23, second dial plate; 24, second rotating shaft; 25, guide table; 26, first fixed Fixed frame; 27, third rotating shaft; 28, supporting box; 29, crushing roller; 30, first bevel gear; 31, first connecting shaft; 32, second bevel gear; 33, third bevel gear; 34, second connecting shaft; 35, fourth bevel gear; 36, fourth gear; 37, second gear ring; 38, guide bucket; 39, worm wheel; 40, worm; 41, fifth bevel gear; 42, sixth bevel gear; 43, cleaning brush; 44, second fixed frame; 45, slide groove; 46, slider; 47, compression spring; 48, fourth rotating shaft; 49, fifth gear; 50, sixth gear. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Embodiment 1, by Figure 1 and Figure 2The present invention comprises a base 1, a support frame 2 is fixedly connected to the top of the base 1, a coarse grinding box 3 is fixedly connected to the top of the support frame 2, a feeding pipe 4 is provided at the top of the coarse grinding box 3, a first discharging pipe 10 is provided at the bottom of the coarse grinding box 3, a coarse grinding roller 5 is provided in the coarse grinding box 3, a driver for driving the coarse grinding roller 5 to rotate is installed on the support frame 2, a coarse grinding ring 6 is provided on the outer sleeve of the coarse grinding roller 5, a hydraulic telescopic rod 7 is fixedly connected to the top of the coarse grinding box 3, the telescopic end of the hydraulic telescopic rod 7 is fixedly connected to the top of the coarse grinding ring 6, the coarse grinding box 3 is equipped with a filtering and separating structure located below the coarse grinding roller 5, and the coarse grinding box 3 is equipped with a crushing and feeding mechanism for crushing graphite; the coarse grinding ring 6 is driven to move in the vertical direction by the hydraulic telescopic rod 7, the initial spacing between the coarse grinding ring 6 and the coarse grinding roller 5 is adjusted, and the coarse grinding roller 5 that needs to be crushed is crushed. The ground graphite is fed into the coarse grinding box 3 through the feed pipe 4, and the fed graphite is crushed by the crushing and feeding mechanism so that the crushed graphite is smaller than the distance between the coarse grinding ring 6 and the coarse grinding roller 5. The coarse grinding roller 5 is driven to rotate by the driver, and the graphite is ground by the cooperation of the coarse grinding roller 5 and the coarse grinding ring 6. The ground graphite is filtered and separated by the filtering and separation structure, and the graphite with a particle diameter greater than the preset value is discharged through the first discharge pipe 10, and the graphite with a particle diameter less than the preset value is discharged through the filtering and separation structure, ensuring that the graphite can smoothly enter between the coarse grinding roller 5 and the coarse grinding ring 6, thereby improving the grinding efficiency, changing the grinding method, and avoiding the phenomenon of damage to the graphite flakes during ball mill grinding. At the same time, the ground graphite can be screened for subsequent processing.

[0036] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7The driver includes a support tube 13 fixedly mounted on the bottom end of the coarse grinding roller 5, the bottom end of the support tube 13 is rotatably connected to the support frame 2, and the filtering and separating structure is sleeved on the outside of the support tube 13, the support frame 2 is fixedly mounted with a control box 14, the bottom of the control box 14 is fixedly connected with a motor 15, the output end of the motor 15 is fixedly connected with a first rotating shaft 16, the top of the first rotating shaft 16 is fixedly connected with a first gear 17 located above the support frame 2, the first rotating shaft 16 and the support frame 2 are rotatably connected, the outside of the support tube 13 is fixedly sleeved with a second gear 18 meshing with the first gear 17, the crushing and feeding mechanism includes a second rotating shaft 24 arranged in the coarse grinding box 3, and the second The outer sleeve of the rotating shaft 24 is provided with a guide platform 25, which is a truncated cone structure, and the bottom of the guide platform 25 is fixedly connected to the top of the rough grinding roller 5. The support tube 13 is sleeved on the outside of the second rotating shaft 24, and the bottom end of the second rotating shaft 24 is rotatably connected to the bottom inner wall of the control box 14. The bottom end of the second rotating shaft 24 is connected to the first rotating shaft 16 through a reduction unit. The top of the second rotating shaft 24 is fixedly connected to a first fixed frame 26 located above the guide platform 25. The top of the first fixed frame 26 is fixedly connected to two support boxes 28. Two third rotating shafts 27 are rotatably connected between the two support boxes 28. The outer fixed sleeve of the third rotating shaft 27 is provided with a crushing roller 29, and the two A crushing roller 29 is located below the feed pipe 4, the support box 28 is equipped with a rotating member for driving the two third rotating shafts 27 to rotate, a guide bucket 38 is provided above the first fixed frame 26, and the two ends of the guide bucket 38 are respectively fixedly connected to the two support boxes 28, the rotating member includes a first connecting shaft 31 rotatably mounted on the support box 28, and the two ends of the third rotating shaft 27 are respectively fixedly connected to the first bevel gear 30, the outer fixed sleeve of the first connecting shaft 31 is provided with two second bevel gears 32, and the second bevel gears 32 are meshed with the corresponding first bevel gears 30, the outer fixed sleeve of the first connecting shaft 31 is provided with a third bevel gear 33, and the support box 28 is rotatably connected to the second bevel gear 32. A connecting shaft 34, a fourth bevel gear 35 meshing with the third bevel gear 33 is fixedly connected to the bottom end of the second connecting shaft 34, a fourth gear 36 is fixedly connected to the top end of the second connecting shaft 34, a second ring gear 37 is fixedly connected to the top inner wall of the rough grinding box 3, and the fourth gear 36 meshes with the second ring gear 37, the reduction unit includes a worm gear 39 fixedly sleeved on the outside of the second rotating shaft 24, the worm gear 39 is located in the control box 14, a worm 40 meshing with the worm gear 39 is rotatably connected in the control box 14, a fifth bevel gear 41 is fixedly connected to the end of the worm gear 40, and a sixth bevel gear 42 meshing with the fifth bevel gear 41 is fixedly sleeved on the outside of the first rotating shaft 16;

[0037] The first rotating shaft 16 and the first gear 17 are driven to rotate by the motor 15, and the first gear 17 drives the support tube 13 and the rough grinding roller 5 to rotate through the second gear 18, and the first rotating shaft 16 drives the sixth bevel gear 42 to rotate, and the sixth bevel gear 42 drives the worm 40 to rotate through the fifth bevel gear 41, and the worm 40 drives the second rotating shaft 24 and the first fixed frame 26 to rotate through the worm gear 39, and the first fixed frame 26 drives the guide bucket 38, the two support boxes 28 and the two crushing rollers 29 to rotate with the feed pipe 4 as the axis, and changes the direction of the guide bucket 38, and the support box 28 drives the fourth gear 36 to roll on the second gear ring 37, so that the fourth gear 36 and the second The connecting shaft 34 rotates, and the second connecting shaft 34 drives the first connecting shaft 31 to rotate through the fourth bevel gear 35 and the third bevel gear 33. The first connecting shaft 31 drives the third rotating shaft 27 and the crushing roller 29 to rotate through the second bevel gear 32 and the first bevel gear 30. The graphite enters between the two crushing rollers 29 through the feeding pipe 4, and the graphite is crushed by the rotation of the two crushing rollers 29. The crushed graphite falls onto the guide bucket 38, and the graphite slides from the guide bucket 38 to the guide platform 25. The graphite then slides between the rough grinding ring 6 and the rough grinding roller 5 through the guide platform 25. Due to the rotation of the guide bucket 38, the graphite can slide evenly between the rough grinding ring 6 and the rough grinding roller 5.

[0038] Embodiment 3, based on embodiment 2, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8The filtering and separating structure includes a discharge hopper 8 arranged below the coarse grinding roller 5, a filter hopper 9 is fixedly connected to the top of the discharge hopper 8, the discharge hopper 8 passes through the bottom inner wall of the coarse grinding box 3, a second discharge pipe 12 is arranged at the bottom of the discharge hopper 8, a first pick plate 11 located in the coarse grinding box 3 is fixedly installed on the outer wall of the discharge hopper 8, and the bottom of the first pick plate 11 is in contact with the bottom inner wall of the coarse grinding box 3, and the side of the first pick plate 11 away from the discharge hopper 8 is in contact with the inner wall of the coarse grinding box 3, the coarse grinding ring 6 is equipped with an elastic cleaning structure for cleaning the filter hopper 9, and the support pipe 13 passes through the discharge hopper 8 and the filter hopper 9 respectively. The support frame 2 is provided with a collecting unit matched with the second discharge pipe 12, and the second discharge pipe 12 is connected with the second rotating shaft 24 through a transmission member, and the transmission member includes a fourth rotating shaft 48 rotatably mounted on the control box 14, and the top of the fourth rotating shaft 48 is fixedly connected with a third gear 19 located above the support frame 2, and a first gear ring 20 meshing with the third gear 19 is provided above the support frame 2, and the first gear ring 20 is fixedly connected with the second discharge pipe 12, and the outer fixed sleeve of the fourth rotating shaft 48 is provided with a fifth gear 49 located in the control box 14 The outer fixed sleeve of the second rotating shaft 24 is provided with a sixth gear 50 located in the control box 14, and the sixth gear 50 is meshed with the fifth gear 49. The collecting unit includes an annular collecting box 21 fixedly mounted on the supporting frame 2. The annular collecting box 21 is a cavity structure with an opening at the top. A third discharge pipe 22 is provided at the bottom of the annular collecting box 21. The bottom end of the second discharge pipe 12 is located in the annular collecting box 21. The second discharge pipe 12 is fixedly installed with a second dial plate 23 located in the annular collecting box 21, and the bottom of the second dial plate 23 is in contact with the bottom inner wall of the annular collecting box 21. The second dial plate The two sides of 23 are in contact with the inner walls of the two sides of the annular collecting box 21 respectively, the elastic cleaning structure includes at least one cleaning brush 43 arranged above the filter bucket 9, the cleaning brush 43 is in contact with the filter bucket 9, at least one slide groove 45 is provided at the bottom of the rough grinding ring 6, the number of the slide grooves 45 and the cleaning brush 43 is the same, a slider 46 is provided in the slide groove 45, the top of the slider 46 and the top inner wall of the slide groove 45 are connected by a compression spring 47, the bottom of the slider 46 is fixedly connected to a second fixing frame 44 located below the rough grinding ring 6, and the second fixing frame 44 is fixedly connected to the corresponding cleaning brush 43;

[0039] When the support tube 13 and the coarse grinding roller 5 rotate, the graphite ground by the coarse grinding roller 5 and the coarse grinding ring 6 slides to the top of the filter bucket 9 and is filtered through the filter bucket 9. The graphite with a particle diameter smaller than the preset value passes through the filter bucket 9 and enters the discharge hopper 8. The graphite with a particle diameter smaller than the preset value is discharged into the annular collecting box 21 through the second discharge pipe 12. The graphite with a particle diameter larger than the preset value slides from the top of the filter bucket 9 to between the outer wall of the discharge hopper 8 and the inner wall of the coarse grinding box 3. When the second rotating shaft 24 drives the first fixed frame 26 to rotate, the first fixed frame 26 drives the sixth gear 50 to rotate, and the sixth gear 50 drives the fourth rotating shaft 48 and the third gear 19 to rotate through the fifth gear 49. The third gear 19 drives the second discharge pipe 12, the discharge hopper 8 and the filter bucket 9 to rotate through the first gear ring 20. The discharge hopper 8 drives the first paddle 11 to paddle the graphite between the outer wall of the discharge hopper 8 and the inner wall of the coarse grinding box 3, so that the graphite is pushed to the top of the first discharge pipe 10, and the graphite with a particle diameter larger than the preset value is discharged through the first discharge pipe 10, and the second discharge pipe 12 drives the second paddle 23 to paddle the graphite in the annular collecting box 21, so that the graphite in the annular collecting box 21 moves to the top of the third discharge pipe 22, and the graphite with a particle diameter smaller than the preset value can be discharged through the third discharge pipe 22, and the compression spring 47 is initially in a compressed state, and the compression spring 47 applies pressure to the slider 46 and the second fixing frame 44 to make the cleaning brush 43 close to the filter bucket 9, and when the discharge hopper 8 and the filter bucket 9 rotate, the cleaning brush 43 cleans the graphite blocked on the filter bucket 9.

[0040] A method for using a rough grinding vertical roller mill for protecting graphite flakes in this embodiment uses the rough grinding vertical roller mill for protecting graphite flakes as described above, comprising the following steps:

[0041] Step 1: drive the rough grinding ring 6 to move vertically by the hydraulic telescopic rod 7 to adjust the initial distance between the rough grinding ring 6 and the rough grinding roller 5;

[0042] Step 2: The graphite to be ground is fed into the rough grinding box 3 through the feed pipe 4, and the fed graphite is crushed by the crushing and feeding mechanism so that the crushed graphite is smaller than the distance between the rough grinding ring 6 and the rough grinding roller 5;

[0043] Step 3: The rough grinding roller 5 is driven to rotate by a driver, and the graphite is ground by the cooperation of the rough grinding roller 5 and the rough grinding ring 6;

[0044] Step 4: The polished graphite is filtered and separated through a filtering and separation structure, and graphite with a particle diameter greater than a preset value is discharged through the first discharge pipe 10, and graphite with a particle diameter less than a preset value is discharged through the filtering and separation structure.

[0045] Working principle: During operation, the rough grinding ring 6 is driven to move in the vertical direction by the hydraulic telescopic rod 7, and the initial spacing between the rough grinding ring 6 and the rough grinding roller 5 is adjusted. The graphite to be ground is put into the rough grinding box 3 through the feeding pipe 4, and the graphite put in is crushed by the crushing and feeding mechanism so that the crushed graphite is smaller than the spacing between the rough grinding ring 6 and the rough grinding roller 5. The rough grinding roller 5 is driven to rotate by the driver, and the graphite is ground through the cooperation of the rough grinding roller 5 and the rough grinding ring 6. The ground graphite is filtered and separated by the filtering and separation structure, and the graphite with a particle diameter greater than the preset value is discharged through the first discharge pipe 10, and the graphite with a particle diameter less than the preset value is discharged through the filtering and separation structure, ensuring that the graphite can smoothly enter between the rough grinding roller 5 and the rough grinding ring 6, thereby improving the grinding efficiency, changing the grinding method, and avoiding the phenomenon that the graphite flakes are damaged during ball mill grinding. At the same time, the ground graphite can be screened for subsequent processing;

[0046] The first rotating shaft 16 and the first gear 17 are driven to rotate by the motor 15, and the first gear 17 drives the support tube 13 and the rough grinding roller 5 to rotate through the second gear 18, and the first rotating shaft 16 drives the sixth bevel gear 42 to rotate, and the sixth bevel gear 42 drives the worm 40 to rotate through the fifth bevel gear 41, and the worm 40 drives the second rotating shaft 24 and the first fixed frame 26 to rotate through the worm gear 39, and the first fixed frame 26 drives the guide bucket 38, the two support boxes 28 and the two crushing rollers 29 to rotate with the feed pipe 4 as the axis, and changes the direction of the guide bucket 38, and the support box 28 drives the fourth gear 36 to roll on the second gear ring 37, so that the fourth gear 36 and the second The connecting shaft 34 rotates, and the second connecting shaft 34 drives the first connecting shaft 31 to rotate through the fourth bevel gear 35 and the third bevel gear 33. The first connecting shaft 31 drives the third rotating shaft 27 and the crushing roller 29 to rotate through the second bevel gear 32 and the first bevel gear 30. The graphite enters between the two crushing rollers 29 through the feed pipe 4, and the graphite is crushed by the rotation of the two crushing rollers 29. The crushed graphite falls onto the guide bucket 38, and the graphite slides from the guide bucket 38 to the guide platform 25. The graphite then slides between the rough grinding ring 6 and the rough grinding roller 5 through the guide platform 25. Due to the rotation of the guide bucket 38, the graphite can slide evenly between the rough grinding ring 6 and the rough grinding roller 5.

[0047] When the support tube 13 and the coarse grinding roller 5 rotate, the graphite ground by the coarse grinding roller 5 and the coarse grinding ring 6 slides to the top of the filter bucket 9 and is filtered through the filter bucket 9. The graphite with a particle diameter smaller than the preset value passes through the filter bucket 9 and enters the discharge hopper 8. The graphite with a particle diameter smaller than the preset value is discharged into the annular collecting box 21 through the second discharge pipe 12. The graphite with a particle diameter larger than the preset value slides from the top of the filter bucket 9 to between the outer wall of the discharge hopper 8 and the inner wall of the coarse grinding box 3. When the second rotating shaft 24 drives the first fixed frame 26 to rotate, the first fixed frame 26 drives the sixth gear 50 to rotate, and the sixth gear 50 drives the fourth rotating shaft 48 and the third gear 19 to rotate through the fifth gear 49. The third gear 19 drives the second discharge pipe 12, the discharge hopper 8 and the filter bucket 9 to rotate through the first gear ring 20. The discharge hopper 8 drives the first paddle 11 to paddle the graphite between the outer wall of the discharge hopper 8 and the inner wall of the coarse grinding box 3, so that the graphite is pushed to the top of the first discharge pipe 10, and the graphite with a particle diameter larger than the preset value is discharged through the first discharge pipe 10, and the second discharge pipe 12 drives the second paddle 23 to paddle the graphite in the annular collecting box 21, so that the graphite in the annular collecting box 21 moves to the top of the third discharge pipe 22, and the graphite with a particle diameter smaller than the preset value can be discharged through the third discharge pipe 22, and the compression spring 47 is initially in a compressed state, and the compression spring 47 applies pressure to the slider 46 and the second fixing frame 44 to make the cleaning brush 43 close to the filter bucket 9, and when the discharge hopper 8 and the filter bucket 9 rotate, the cleaning brush 43 cleans the graphite blocked on the filter bucket 9.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rough grinding vertical roller mill for protecting graphite flakes, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support frame (2), the top of the support frame (2) is fixedly connected to a coarse grinding box (3), the top of the coarse grinding box (3) is provided with a feed pipe (4), the bottom of the coarse grinding box (3) is provided with a first discharge pipe (10), a coarse grinding roller (5) is provided in the coarse grinding box (3), the support frame (2) is provided with a driver for driving the coarse grinding roller (5) to rotate, the outer sleeve of the coarse grinding roller (5) is provided with a coarse grinding ring (6), the top of the coarse grinding box (3) is fixedly connected to a hydraulic telescopic rod (7), the telescopic end of the hydraulic telescopic rod (7) is fixedly connected to the top of the coarse grinding ring (6), the coarse grinding box (3) is provided with a filtering and separating structure located below the coarse grinding roller (5), and the coarse grinding box (3) is provided with a crushing and feeding mechanism for crushing graphite.

2. A rough grinding vertical roller mill for protecting graphite flakes according to claim 1, characterized in that: The driver comprises a support tube (13) fixedly mounted on the bottom end of the coarse grinding roller (5), the bottom end of the support tube (13) being rotatably connected to the support frame (2), and a filtering and separating structure being sleeved on the outside of the support tube (13), the support frame (2) being fixedly mounted with a control box (14), the bottom of the control box (14) being fixedly connected to a motor (15), the output end of the motor (15) being fixedly connected to a first rotating shaft (16), the top end of the first rotating shaft (16) being fixedly connected to a first gear (17) located above the support frame (2), the first rotating shaft (16) being rotatably connected to the support frame (2), and the outside of the support tube (13) being fixedly sleeved with a second gear (18) meshing with the first gear (17).

3. A rough grinding vertical roller mill for protecting graphite flakes according to claim 2, characterized in that: The crushing and feeding mechanism comprises a second rotating shaft (24) arranged in the rough grinding box (3), the outer part of the second rotating shaft (24) is provided with a guide platform (25), the guide platform (25) is a truncated cone structure, and the bottom of the guide platform (25) is fixedly connected to the top of the rough grinding roller (5), the support tube (13) is sleeved on the outer part of the second rotating shaft (24), and the bottom end of the second rotating shaft (24) is rotatably connected to the bottom inner wall of the control box (14), the bottom end of the second rotating shaft (24) is connected to the first rotating shaft (16) through a reduction unit, and the top end of the second rotating shaft (24) is fixedly connected to a guide plate located on the guide platform (2 5) a first fixed frame (26) above, the top of the first fixed frame (26) is fixedly connected to two support boxes (28), two third rotating shafts (27) are rotatably connected between the two support boxes (28), the outer fixed sleeve of the third rotating shaft (27) is provided with a crushing roller (29), and the two crushing rollers (29) are located below the feed pipe (4), the support box (28) is equipped with a rotating part for driving the two third rotating shafts (27) to rotate, and a guide bucket (38) is provided above the first fixed frame (26), and the two ends of the guide bucket (38) are respectively fixedly connected to the two support boxes (28).

4. A rough grinding vertical roller mill for protecting graphite flakes according to claim 3, characterized in that: The rotating member comprises a first connecting shaft (31) rotatably mounted on a supporting box (28); two ends of the third rotating shaft (27) are respectively fixedly connected with first bevel gears (30); an outer fixed sleeve of the first connecting shaft (31) is provided with two second bevel gears (32), and the second bevel gears (32) are meshed with the corresponding first bevel gears (30); an outer fixed sleeve of the first connecting shaft (31) is provided with a third bevel gear (33); a second connecting shaft (34) is rotatably connected to the supporting box (28); a fourth bevel gear (35) meshed with the third bevel gear (33) is fixedly connected to the bottom end of the second connecting shaft (34); a fourth gear (36) is fixedly connected to the top end of the second connecting shaft (34); a second gear ring (37) is fixedly connected to the top inner wall of the rough grinding box (3), and the fourth gear (36) is meshed with the second gear ring (37).

5. A rough grinding vertical roller mill for protecting graphite flakes according to claim 3, characterized in that: The reduction unit comprises a worm wheel (39) fixedly sleeved on the outside of the second rotating shaft (24), the worm wheel (39) being located in a control box (14), a worm (40) meshing with the worm wheel (39) being rotatably connected in the control box (14), a fifth bevel gear (41) being fixedly connected at the end of the worm (40), and a sixth bevel gear (42) meshing with the fifth bevel gear (41) being fixedly sleeved on the outside of the first rotating shaft (16).

6. A rough grinding vertical roller mill for protecting graphite flakes according to claim 3, characterized in that: The filtering and separating structure comprises a discharge hopper (8) arranged below the coarse grinding roller (5), the top of the discharge hopper (8) is fixedly connected with a filter hopper (9), the discharge hopper (8) passes through the bottom inner wall of the coarse grinding box (3), a second discharge pipe (12) is arranged at the bottom end of the discharge hopper (8), a first shifting plate (11) located in the coarse grinding box (3) is fixedly installed on the outer wall of the discharge hopper (8), and the bottom of the first shifting plate (11) is in contact with the bottom inner wall of the coarse grinding box (3), and the first shifting plate (11) is in contact with the bottom inner wall of the coarse grinding box (3). (11) The side away from the discharge hopper (8) contacts the inner wall of the coarse grinding box (3), the coarse grinding ring (6) is equipped with an elastic cleaning structure for cleaning the filter hopper (9), the support pipe (13) passes through the discharge hopper (8) and the filter hopper (9) respectively, and the discharge hopper (8) and the support pipe (13) are rotatably connected, the support frame (2) is equipped with a collecting unit that cooperates with the second discharge pipe (12), and the second discharge pipe (12) and the second rotating shaft (24) are connected through a transmission member.

7. A rough grinding vertical roller mill for protecting graphite flakes according to claim 6, characterized in that: The transmission member includes a fourth rotating shaft (48) rotatably mounted on the control box (14); the top end of the fourth rotating shaft (48) is fixedly connected to a third gear (19) located above the support frame (2); a first gear ring (20) meshing with the third gear (19) is provided above the support frame (2); the first gear ring (20) is fixedly connected to the second discharge pipe (12); an external fixed sleeve of the fourth rotating shaft (48) is provided with a fifth gear (49) located in the control box (14); an external fixed sleeve of the second rotating shaft (24) is provided with a sixth gear (50) located in the control box (14); and the sixth gear (50) is meshed with the fifth gear (49).

8. A rough grinding vertical roller mill for protecting graphite flakes according to claim 6, characterized in that: The collection unit comprises an annular collection box (21) fixedly mounted on a support frame (2); the annular collection box (21) is a hollow structure with an opening at the top; a third discharge pipe (22) is provided at the bottom of the annular collection box (21); the bottom end of the second discharge pipe (12) is located in the annular collection box (21); the second discharge pipe (12) is fixedly mounted with a second dial plate (23) located in the annular collection box (21); the bottom of the second dial plate (23) is in contact with the bottom inner wall of the annular collection box (21); and the two sides of the second dial plate (23) are in contact with the two side inner walls of the annular collection box (21) respectively.

9. A rough grinding vertical roller mill for protecting graphite flakes according to claim 6, characterized in that: The elastic cleaning structure comprises at least one cleaning brush (43) arranged above the filter bucket (9), the cleaning brush (43) and the filter bucket (9) are in contact, at least one slide groove (45) is provided at the bottom of the rough grinding ring (6), the number of the slide grooves (45) and the cleaning brush (43) are the same, a slider (46) is provided in the slide groove (45), the top of the slider (46) and the inner wall of the top of the slide groove (45) are connected by a compression spring (47), the bottom of the slider (46) is fixedly connected to a second fixing frame (44) located below the rough grinding ring (6), and the second fixing frame (44) and the corresponding cleaning brush (43) are fixedly connected.

10. A method for using a rough grinding vertical roller mill for protecting graphite flakes, using the rough grinding vertical roller mill for protecting graphite flakes as claimed in claim 1, characterized in that: The following steps are involved: Step 1: driving the rough grinding ring (6) to move vertically by means of a hydraulic telescopic rod (7) to adjust the initial spacing between the rough grinding ring (6) and the rough grinding roller (5); Step 2: The graphite to be ground is fed into the rough grinding box (3) through the feed pipe (4), and the fed graphite is crushed by the crushing and feeding mechanism so that the crushed graphite is smaller than the distance between the rough grinding ring (6) and the rough grinding roller (5); Step 3: The rough grinding roller (5) is driven to rotate by a driver, and the graphite is ground by the cooperation of the rough grinding roller (5) and the rough grinding ring (6); Step 4: The polished graphite is filtered and separated through a filtering and separation structure, and graphite with a particle diameter greater than a preset value is discharged through a first discharge pipe (10), and graphite with a particle diameter less than a preset value is discharged through the filtering and separation structure.

Images