Natural graphite material processing and grading device

Abstract

The invention relates to the technical field of graphite processing, in particular to a natural graphite material processing and grading device which comprises a grading mechanism, the grading mechanism comprises a grading machine shell, the upper end of the grading machine shell is fixedly connected with a motor, the movable end of the motor is fixedly connected with a grading turbine, the grading turbine is located in the grading machine shell, and the grading machine shell is fixedly connected with the grading mechanism. A feeding pipe is fixedly connected to the lower portion of the side wall of the classifier shell. The arrangement height of the grading mechanism is far higher than that of a traditional vortex airflow grading mechanism, in the process that natural graphite materials are conveyed along with wind power, the materials with the large specific gravity sink to the inner wall of the grading machine shell due to the gravity effect and flow out through the discharging pipe, the pneumatic force of the light materials is larger than the borne gravity, the light materials are further graded through the grading turbine, and the grading efficiency is improved. And the graded fine powder is taken out of the shell of the grading machine, and materials are centrifuged into the shell of the grading machine, so that the purposes of improving the grading treatment capacity and improving the grading precision are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of graphite processing, and in particular to a natural graphite material processing and grading device. Background Art

[0002] Particle size classification is a very important link in the field of natural graphite processing technology. Different particle sizes of natural graphite correspond to different application fields. Taking the spheroidization process of preparing battery negative electrode materials as an example, in this production process, the graphite that has been spheroidized is generally sent to the next step through an airflow classifier, and the fine powder generated during the spheroidization process is collected to prevent it from adhering to the surface of the spherical graphite and affecting the final performance of the spherical graphite.

[0003] In the prior art, graphite is generally classified by an air vortex classifier. Under the suction of the fan, the material moves with the air flow to the classification area. Under the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator or dust collector for collection through the gap between the classifying wheel blades. The coarse particles carry some fine particles and then hit the wall and disappear at a speed. They fall along the cylinder wall to the secondary air outlet. After the strong washing effect of the secondary air, the coarse and fine particles are separated. The fine particles rise to the classification area for secondary classification, and the coarse particles fall to the discharge port for discharge. Therefore, the processing capacity and processing accuracy are limited. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and a natural graphite material processing and grading device is proposed, which introduces the ferrous metal pre-grading function so that the ferrous metal can be separated in advance, and the grading wheel is used to grade the screened materials, thereby greatly reducing the workload of the grading wheel and improving the overall processing capacity and processing accuracy.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A natural graphite material processing and grading device, comprising:

[0007] The grading mechanism comprises a classifier housing, a motor is fixedly connected to the upper end of the classifier housing, a grading turbine is fixedly connected to the movable end of the motor, the grading turbine is located in the classifier housing, a feed pipe is fixedly connected to the lower side wall of the classifier housing, a powder discharge pipe is fixedly connected to the upper side wall of the classifier housing, and a discharge pipe is fixedly connected to the bottom of the classifier housing;

[0008] The impurity removal mechanism includes a fixed block fixedly connected to the side wall of the classifier housing through a bracket, the side wall of the fixed block is provided with a through hole, the inner wall of the through hole is symmetrically provided with two feed troughs and two impurity removal troughs, the angle between the two feed troughs is 180 degrees, the angle between the two impurity removal troughs is 180 degrees, the inner wall of the through hole is sealed and rotatably connected with a rotating cylinder, the side walls of the rotating cylinder located in the two feed troughs and the two impurity removal troughs are provided with through grooves, the inner wall of the through groove is fixedly connected with a partition, and the top of the rotating cylinder is fixedly connected with a fixing ring.

[0009] Preferably, it also includes an adsorption mechanism, which includes four first plates fixedly connected to the side wall of the fixed ring, the first plate is fixedly connected to the inner wall of the rotating cylinder away from the side wall of the fixed ring, the angle between two adjacent first plates is degrees, and the side walls of the two adjacent first plates close to each other, the inner wall of the rotating cylinder and the side wall of the fixed ring form an adsorption chamber, the side wall of the fixed ring located in the adsorption chamber is slidably connected with a second plate, the second plate is fixedly connected to the side wall away from the fixed ring with a magnetic plate, and the side wall of the magnetic plate is elastically connected to the side wall of the fixed ring through multiple first springs.

[0010] Preferably, an inclined trough connected to the feed trough is provided at the upper end of the rotating cylinder, the bottoms of the feed trough and the impurity removal trough are both connected to the lower end of the rotating cylinder, and the bottoms of the two feed troughs are fixedly connected to a sealing box through two discharge pipes, and the inner wall of the sealing box is connected to the side wall of the feed pipe away from the classifier housing.

[0011] Preferably, the upper end of the sealing box is fixedly connected to two cams through a fixing rod, the two cams are fixedly connected to each other, the two cams are located in a fixing ring, the side wall of the second plate away from the magnetic plate is rotatably connected to a rotating rod, the side wall of the rotating rod is in contact with the side wall of the cam, and the protrusions of the two cams correspond one by one to the two feed slots respectively.

[0012] Preferably, a cleaning mechanism is provided in the impurity removing groove, and the cleaning mechanism includes two reciprocating screws rotatably connected to the tops of the two impurity removing grooves, the side walls of the reciprocating screws are threadedly connected with sliders, the side walls of the sliders close to the partition are fixedly connected with a plurality of bristles, the side walls of the sliders are slidably connected to the inner walls of the impurity removing grooves, the side walls of the two reciprocating screws located above the fixed blocks are respectively fixedly connected with two first wheels, and a synchronous belt is connected between the two first wheels.

[0013] Preferably, the fixed block is provided with a rotating mechanism for driving the rotating cylinder to rotate, the rotating mechanism includes a one-way bearing, the upper end of the fixed block is fixedly connected with a C-shaped plate, the side wall of the C-shaped plate is rotatably connected with a vertical rod, the side wall of the vertical rod is fixedly connected to the inner ring side wall of the one-way bearing, the outer ring side wall of the one-way bearing is fixedly connected to the upper end of the rotating cylinder through a plurality of brackets, the upper end of the C-shaped plate is fixedly connected with a first frame, the inner wall of the first frame is sealingly and slidably connected with a third plate, the side wall of the third plate is fixedly connected with a toothed plate, the upper end of the vertical rod is fixedly connected with a gear, and the side wall of the toothed plate is meshed with the side wall of the gear.

[0014] Preferably, the inner wall of the first frame is sealingly and slidingly connected to the fourth plate, the side wall of the third plate is elastically connected to the side wall of the fourth plate by a plurality of second springs, a pressure sensor is installed on the inner wall of the first frame, an air jet is opened on the side wall of the fourth plate, an electromagnetic valve is installed in the air jet, the pressure sensor and the electromagnetic valve are electrically connected to an external power supply, and two air outlet pipes are fixedly connected to the inner wall of the first frame between the third plate and the fourth plate, and the two air outlet pipes are fixedly connected to the lower ends of the two sliders respectively away from the side wall of the first frame.

[0015] Preferably, the upper end of the first frame is fixedly connected to the second frame, the inner wall of the second frame is sealingly and slidably connected to the fifth plate, the inner wall of the second frame is fixedly connected to a one-way air intake pipe, the inner wall of the second frame is connected to the inner wall of the first frame through a one-way air outlet pipe, the side wall of the motor movable shaft is fixedly connected to the second wheel, the upper end of one of the reciprocating screws passes through the side wall of the U-shaped plate and is fixedly connected to the third wheel, a synchronous belt is connected between the second wheel and the third wheel, and the upper end of the third wheel away from the center is rotatably connected to the side wall of the fifth plate through a connecting rod.

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

[0017] 1. A grading mechanism is set up to form a strong centrifugal force in the grading turbine. At this time, the natural graphite material entering the classifier housing through the feed pipe is transmitted with the wind. The material with a larger specific gravity sinks to the inner wall of the classifier housing due to gravity and flows out through the discharge pipe. The light material has a force greater than the gravity it receives, and is further classified by the grading turbine. The classified fine powder is taken out of the classifier housing, and the material is centrifuged into the classifier housing, thereby improving the grading processing capacity and the grading accuracy.

[0018] 2. A de-impurity mechanism is provided. The magnetic plate in the feed trough can adsorb the iron metal in the graphite and preliminarily screen the graphite entering the classifier housing, thereby avoiding the existence of some iron metal materials in the graphite in the prior art, which causes the iron metal materials to easily collide randomly in the classifying turbine, which not only produces a large abnormal noise, but also easily causes damage to the classifying turbine.

[0019] 3. Two cams are set, and the depressions on the two cams correspond one by one to the two impurity removal grooves. At this time, the two rotating rods corresponding one by one to the two impurity removal grooves will be located in the depression between the two cams. Under the action of multiple first springs, the two magnetic plates there will be separated from the two partitions respectively, so that the iron metal on the partition in the impurity removal groove is easy to fall off and be removed, so as to keep the partition clean and for subsequent use.

[0020] 4. A cleaning mechanism is provided. During the rotation of the reciprocating screw, the slider drives multiple bristles to move up and down, thereby increasing the cleaning force on the iron metal on the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a natural graphite material processing and grading device proposed by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of a top view structure;

[0023] Figure 3 for Figure 1 A schematic diagram of a top cross-sectional structure;

[0024] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0025] Figure 5 for Figure 1 A vertical cross-sectional structural schematic diagram of ;

[0026] Figure 6 for Figure 5 A schematic diagram of the structure enlarged at B in the middle;

[0027] Figure 7 for Figure 6 A schematic diagram of the structure enlarged at C in the middle;

[0028] Figure 8 for Figure 1 Schematic diagram of the vertical cross-sectional structure of the middle fixed block.

[0029] In the figure: 1. Classifier housing; 2. Motor; 3. Classifier turbine; 4. Feed pipe; 5. Powder discharge pipe; 6. Discharge pipe; 7. Fixed block; 8. Feed trough; 9. De-impurity trough; 10. Rotating cylinder; 11. Through slot; 12. Partition plate; 13. Fixed ring; 14. First plate; 15. Adsorption chamber; 16. Second plate; 17. Magnetic plate; 18. First spring; 19. Discharge pipe; 20. Sealing box; 21. Cam; 22. Rotating rod; 23. Reciprocating screw; 24. Sliding block; 25, bristles; 26, shaped plate; 27, first wheel; 28, second wheel; 29, third wheel; 30, one-way bearing; 31, vertical rod; 32, gear; 33, first frame; 34, third plate; 35, toothed plate; 36, second frame; 37, one-way air intake pipe; 38, one-way air outlet pipe; 39, fourth plate; 40, second spring; 41, air jet; 42, pressure sensor; 43, air outlet pipe; 44, fifth plate; 45, connecting rod; 46, inclined groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 8 A natural graphite material processing and grading device comprises a grading mechanism, which comprises a classifier housing 1, a motor 2 is fixedly connected to the upper end of the classifier housing 1, a grading turbine 3 is fixedly connected to the movable end of the motor 2, the grading turbine 3 is located in the classifier housing 1, a feed pipe 4 is fixedly connected to the lower side wall of the classifier housing 1, a powder discharge pipe 5 is fixedly connected to the upper side wall of the classifier housing 1, and a discharge pipe 6 is fixedly connected to the bottom of the classifier housing 1.

[0032] Furthermore, the motor 2 drives the classifying turbine 3 to rotate, forming a strong centrifugal force in the classifying turbine 3. At this time, the natural graphite material entering the classifier housing 1 through the feed pipe 4 is transmitted with the wind. The material with a larger specific gravity sinks to the inner wall of the classifier housing 1 due to the action of gravity and flows out through the discharge pipe 6, while the light material has a force greater than the gravity it is subjected to, and is further classified by the classifying turbine 3. The classified fine powder is taken out of the classifier housing 1, and the material is centrifuged into the classifier housing 1, thereby improving the classification processing capacity and the classification accuracy.

[0033] The impurity removal mechanism includes a fixed block 7 fixedly connected to the side wall of the classifier housing 1 through a bracket, a through hole is opened on the side wall of the fixed block 7, and two feed grooves 8 and two impurity removal grooves 9 are symmetrically opened on the inner wall of the through hole. The angle between the two feed grooves 8 is 180 degrees, and the angle between the two impurity removal grooves 9 is 180 degrees. Figure 4 As shown, the inner wall of the through hole is sealed and rotatably connected to a rotating cylinder 10, and the side walls of the rotating cylinder 10 located in the two feed troughs 8 and the two impurity removal troughs 9 are provided with through grooves 11, the inner wall of the through groove 11 is fixedly connected to a partition plate 12, and the top of the rotating cylinder 10 is fixedly connected to a fixing ring 13.

[0034] The adsorption mechanism also includes four first plates 14 fixedly connected to the side wall of the fixed ring 13. The first plates 14 are fixedly connected to the inner wall of the rotating cylinder 10 away from the side wall of the fixed ring 13. The angle between two adjacent first plates 14 is 90 degrees. Figure 4 As shown, the side walls of two adjacent first plates 14 close to each other, the inner wall of the rotating cylinder 10 and the side wall of the fixed ring 13 form an adsorption chamber 15, and the side wall of the fixed ring 13 located in the adsorption chamber 15 is slidably connected to the second plate 16, and the side wall of the second plate 16 away from the fixed ring 13 is fixedly connected to the magnetic plate 17, and the side wall of the magnetic plate 17 is elastically connected to the side wall of the fixed ring 13 through a plurality of first springs 18.

[0035] The upper end of the rotating drum 10 is provided with an inclined slot 46 (such as Figure 8 As shown), the bottoms of the feed trough 8 and the impurity removal trough 9 are both connected to the lower end of the rotating cylinder 10, and the bottoms of the two feed troughs 8 are fixedly connected to a sealing box 20 through two discharge pipes 19, and the inner wall of the sealing box 20 is connected to the side wall of the feed pipe 4 away from the classifier housing 1.

[0036] like Figure 1 , Figure 4 and Figure 8 As shown, the externally ground graphite enters the two feed troughs 8 through the chute 46. At this time, the magnetic plate 17 located in the feed trough 8 can adsorb the iron metal in the graphite and preliminarily screen the graphite entering the classifier housing 1, thereby avoiding the existence of some iron metal materials in the graphite in the prior art, which causes the iron metal materials to easily collide randomly in the classifying turbine 3, which not only produces a large abnormal noise, but also easily causes damage to the classifying turbine 3.

[0037] The upper end of the sealing box 20 is fixedly connected to two cams 21 through a fixing rod. The two cams 21 are fixedly connected to each other. The two cams 21 are located in the fixing ring 13. The side wall of the second plate 16 away from the magnetic plate 17 is rotatably connected to a rotating rod 22. The side wall of the rotating rod 22 is in contact with the side wall of the cam 21. The protruding parts of the two cams 21 correspond one by one to the two feed slots 8 respectively.

[0038] like Figure 4As shown in the figure, the protruding parts of the two cams 21 respectively correspond to the two feeding grooves 8. At this time, the two rotating rods 22 and the two second plates 16 can drive the two magnetic plates 17 to approach and fit against the side walls of the partition plate 12 respectively, so that the ferromagnetic metal can be adsorbed on the side walls of the partition plate 12. The depressions on the two cams 21 respectively correspond to the two impurity removal grooves 9. At this time, the two rotating rods 22 corresponding to the two impurity removal grooves 9 will be located in the depressions between the two cams 21. Under the action of the multiple first springs 18, the two magnetic plates 17 at this position will be separated from the two partition plates 12 respectively, so that the ferromagnetic metal on the partition plate 12 in the impurity removal groove 9 is easy to fall off and be removed, keeping the partition plate 12 clean and for subsequent use.

[0039] A cleaning mechanism is provided in the impurity removal groove 9. The cleaning mechanism includes two reciprocating lead screws 23 rotatably connected to the tops of the two impurity removal grooves 9. A slider 24 is threadedly connected to the side wall of the reciprocating lead screw 23. A plurality of brush hairs 25 are fixedly connected to the side wall of the slider 24 close to the partition plate 12. The side wall of the slider 24 is slidably connected to the inner wall of the impurity removal groove 9. Two first wheels 27 are respectively fixedly connected to the side walls of the two reciprocating lead screws 23 above the fixed block 7. A synchronous belt is connected between the two first wheels 27.

[0040] Furthermore, the side wall of the brush hair 25 fits against the side wall of the partition plate 12 located in the impurity removal groove 9. During the rotation of the reciprocating lead screw 23, the slider 24 drives the plurality of brush hairs 25 to move up and down, increasing the cleaning force on the ferromagnetic metal on the partition plate 12.

[0041] A rotating mechanism for driving the rotating cylinder 10 to rotate is provided on the fixed block 7. The rotating mechanism includes a one-way bearing 30 (as Figure 7 shown). The upper end of the fixed block 7 is fixedly connected with a U-shaped plate 26. A vertical rod 31 is rotatably connected to the side wall of the U-shaped plate 26. The side wall of the vertical rod 31 is fixedly connected with the inner ring side wall of the one-way bearing 30. The outer ring side wall of the one-way bearing 30 is fixedly connected with the upper end of the rotating cylinder 10 through a plurality of brackets. The upper end of the U-shaped plate 26 is fixedly connected with a first frame 33. A third plate 34 is hermetically slidably connected to the inner wall of the first frame 33. A toothed plate 35 is fixedly connected to the side wall of the third plate 34. A gear 32 is fixedly connected to the upper end of the vertical rod 31. The side wall of the toothed plate 35 meshes with the side wall of the gear 32.

[0042] As Figure 6 and Figure 7 shown, when the toothed plate 35 slides to the right and fits against the inner side wall of the first frame 33, at this time, the toothed plate 35 will drive the gear 32 to rotate clockwise by half a turn. The inner ring of the one-way bearing 30 drives its outer ring to rotate, driving the rotating cylinder 10 to rotate by half a turn, replacing the positions of the partition plates 12 in the two feeding grooves 8 and the two impurity removal grooves 9, so as to increase the continuous adsorption effect on the ferromagnetic metal. When the toothed plate 35 slides to the left and drives the gear 32 to rotate counterclockwise, at this time, the inner ring of the one-way bearing 30 does not drive its inner ring to rotate.

[0043] The inner wall of the first frame 33 is sealed and slidably connected with the fourth plate 39, the side wall of the third plate 34 is elastically connected to the side wall of the fourth plate 39 through a plurality of second springs 40, a pressure sensor 42 is installed on the inner wall of the first frame 33, a jet port 41 is provided on the side wall of the fourth plate 39, a solenoid valve is installed in the jet port 41, the pressure sensor 42 and the solenoid valve are electrically connected to an external power supply, and two air outlet pipes 43 are fixedly connected to the inner wall of the first frame 33 between the third plate 34 and the fourth plate 39, and the two air outlet pipes 43 are fixedly connected to the lower ends of the two sliders 24 away from the side wall of the first frame 33 (such as Figure 6 shown).

[0044] The process of controlling the opening and closing of the electromagnetic valve by the pressure sensor 42 is a prior art and will not be described in detail here.

[0045] The upper end of the first frame 33 is fixedly connected to the second frame 36, and the inner wall of the second frame 36 is sealed and slidably connected to the fifth plate 44. The inner wall of the second frame 36 is fixedly connected to the one-way air intake pipe 37, and the one-way air intake pipe 37 only allows gas to enter the first frame 33 from the outside. The inner wall of the second frame 36 is connected to the inner wall of the first frame 33 through the one-way air outlet pipe 38, and the one-way air outlet pipe 38 only allows gas to enter the first frame 33 from the second frame 36. The side wall of the movable shaft of the motor 2 is fixedly connected to the second wheel 28, and the upper end of one of the reciprocating screws 23 passes through the side wall of the U-shaped plate 26 and is fixedly connected to the third wheel 29. A synchronous belt is connected between the second wheel 28 and the third wheel 29, and the upper end of the third wheel 29 away from the center is rotatably connected to the side wall of the fifth plate 44 through a connecting rod 45.

[0046] Furthermore, during the rotation process, the motor 2 drives the third wheel 29 to rotate through the second wheel 28 and the synchronous belt. At this time, the third wheel 29 drives the fifth plate 44 to slide back and forth on the inner wall of the second frame 36 through the connecting rod 45, so that the space in the second frame 36 is intermittently increased or decreased. At this time, the second frame 36 can intermittently pump air into the first frame 33 through the one-way air intake pipe 37 and the one-way air outlet pipe 38. The first frame 33 is located in the space of the pressure sensor 42 and stores air, so that the pressure in the space increases. When the pressure in the space increases to the set upper limit of the pressure sensor 42, the solenoid valve is energized and opened, so that the high-pressure gas in the space is instantly ejected through the air jet 41, driving the third plate 34 to move rightward (such as Figure 7 As shown), the high-pressure gas will then flow out through the gas outlet pipe 43 to blow the side wall of the partition 12 in the impurity removal tank 9, thereby further increasing the cleaning of the iron metal adsorbed on the partition 12;

[0047] It should be noted that the diameter of the air outlet pipe 43 is much smaller than the diameter of the air jet 41, so the high-pressure gas instantly ejected from the air jet 41 cannot flow out through the air outlet pipe 43, which will drive the third plate 34 to move to the right. After the subsequent high-pressure gas flows out through the air outlet pipe 43, under the action of multiple second springs 40, the third plate 34 will be driven to move to the left to its original position, so as to drive the rotating cylinder 10 to rotate next time.

[0048] When screening the negative electrode graphite material, the driving motor 2 rotates, driving the classification turbine 3 to rotate, forming a strong centrifugal force in the classification turbine 3, and then the ground graphite is added to the two feed troughs 8 through the two chute 46. At this time, the magnetic plate 17 located in the feed trough 8 can adsorb the iron metal in the graphite, and preliminarily screen the graphite entering the classifier housing 1, avoiding the existence of some iron metal materials in the graphite in the prior art, which causes the iron metal materials to easily collide in the classification turbine 3, which not only produces a large abnormal sound, but also easily causes damage to the classification turbine 3;

[0049] Then the graphite will enter the classifier housing 1 through the two discharge pipes 19 and the sealing box 20 through the feed pipe 4, and then the graphite will enter the classifier turbine 3, forming a strong centrifugal force in the classifier turbine 3. At this time, the natural graphite material entering the classifier housing 1 through the feed pipe 4 is transmitted with the wind. The material with a larger specific gravity sinks to the inner wall of the classifier housing 1 due to the gravity and flows out through the discharge pipe 6, while the light material has a greater air force than the gravity, and is further classified in the classifier turbine 3. The classified fine powder is taken out of the classifier housing 1, and the material is centrifuged into the classifier housing 1, thereby improving the classification processing capacity and the classification accuracy.

[0050] During the rotation process, the motor 2 will drive the third wheel 29 to rotate through the second wheel 28 and the synchronous belt. At this time, the third wheel 29 drives the fifth plate 44 to slide back and forth on the inner wall of the second frame 36 through the connecting rod 45, so that the space in the second frame 36 is intermittently increased or decreased. At this time, the second frame 36 can intermittently pump air into the first frame 33 through the one-way air intake pipe 37 and the one-way air outlet pipe 38, so that the first frame 33 is located in the space of the pressure sensor 42. Air will be stored in the space, and the pressure in the space will increase. When the pressure in the space increases to the upper limit set by the pressure sensor 42, the solenoid valve is energized and opened, so that the high-pressure gas in the space is instantly ejected through the jet port 41, driving the third plate 34 to move rightward, so that when the tooth plate 35 slides to the right and fits with the inner wall of the first frame 33, the tooth plate 35 will drive the gear 32 to rotate half a circle clockwise (such as Figure 6 and Figure 7As shown), the inner ring of the one-way bearing 30 drives its outer ring to rotate, driving the rotating cylinder 10 to rotate half a circle, and the position of the partitions 12 located in the two feeding grooves 8 and the two impurity removal grooves 9 is replaced, that is, the partitions 12 located in the impurity removal grooves 9 that have been cleaned are rotated to the feeding grooves 8, thereby increasing the continuous adsorption effect on the ferrous metal;

[0051] Since the protruding parts of the two cams 21 correspond to the two feed slots 8 one by one, the two cams 21 can drive the two magnetic plates 17 to approach and fit the side walls of the partition 12 in the feed slot 8 through the two rotating rods 22 and the two second plates 16, so that the ferrous metal can be adsorbed on the side walls of the partition 12, and the recessed parts on the two cams 21 correspond to the two impurity removal slots 9 one by one. At this time, the two rotating rods 22 corresponding to the two impurity removal slots 9 will be located in the recessed part between the two cams 21. Under the action of the multiple first springs 18, the two magnetic plates 17 at this place will be separated from the two partitions 12, so that the ferrous metal on the partition 12 in the impurity removal slot 9 can be easily dropped and removed, so as to keep the partition 12 clean and ready for subsequent use.

[0052] At the same time, the rotation of the third wheel 29 drives one of the reciprocating screws 23 to rotate. At this time, under the action of the two first wheels 27 and the synchronous belt, the two reciprocating screws 23 will be driven to rotate synchronously, so that the slider 24 drives multiple bristles 25 to move up and down, thereby increasing the cleaning force of the ferrous metal on the partition 12, and the high-pressure gas ejected through the jet port 41 will flow out through the outlet pipe 43 to blow the side wall of the partition 12 located in the impurity removal groove 9, thereby further increasing the cleaning of the ferrous metal adsorbed on the partition 12.

[0053] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A natural graphite material processing and grading device, characterized in that: include: A grading mechanism, the grading mechanism comprising a classifier housing (1), the upper end of the classifier housing (1) being fixedly connected to a motor (2), the movable end of the motor (2) being fixedly connected to a grading turbine (3), the grading turbine (3) being located inside the classifier housing (1), a feed pipe (4) being fixedly connected below a side wall of the classifier housing (1), a powder discharge pipe (5) being fixedly connected above a side wall of the classifier housing (1), and a discharge pipe (6) being fixedly connected to the bottom of the classifier housing (1); The impurity removal mechanism comprises a fixed block (7) fixedly connected to the side wall of the classifier housing (1) through a bracket, the side wall of the fixed block (7) is provided with a through hole, the inner wall of the through hole is symmetrically provided with two feed grooves (8) and two impurity removal grooves (9), the angle between the two feed grooves (8) is 180 degrees, the angle between the two impurity removal grooves (9) is 180 degrees, the inner wall of the through hole is sealed and rotatably connected with a rotating cylinder (10), the side walls of the rotating cylinder (10) located in the two feed grooves (8) and the two impurity removal grooves (9) are provided with through grooves (11), the inner wall of the through groove (11) is fixedly connected with a partition plate (12), and the top of the rotating cylinder (10) is fixedly connected with a fixing ring (13).

2. A natural graphite material processing and grading device according to claim 1, characterized in that: It also includes an adsorption mechanism, which includes four first plates (14) fixedly connected to the side wall of the fixed ring (13), the side wall of the first plate (14) away from the fixed ring (13) is fixedly connected to the inner side wall of the rotating cylinder (10), the angle between two adjacent first plates (14) is (90) degrees, the side walls of the two adjacent first plates (14) close to each other, the inner side wall of the rotating cylinder (10) and the side wall of the fixed ring (13) form an adsorption chamber (15), the side wall of the fixed ring (13) located in the adsorption chamber (15) is slidably connected to a second plate (16), the side wall of the second plate (16) away from the fixed ring (13) is fixedly connected to a magnetic plate (17), and the side wall of the magnetic plate (17) is elastically connected to the side wall of the fixed ring (13) through a plurality of first springs (18).

3. A natural graphite material processing and grading device according to claim 2, characterized in that: The upper end of the rotating cylinder (10) is provided with an inclined groove (46) connected to the feed trough (8); the bottoms of the feed trough (8) and the impurity removal trough (9) are both connected to the lower end of the rotating cylinder (10); the bottoms of the two feed troughs (8) are fixedly connected to a sealing box (20) via two discharge pipes (19); the inner wall of the sealing box (20) is connected to the side wall of the feed pipe (4) away from the classifier housing (1).

4. A natural graphite material processing and grading device according to claim 3, characterized in that: The upper end of the sealing box (20) is fixedly connected to two cams (21) via a fixing rod. The two cams (21) are fixedly connected to each other. The two cams (21) are located in the fixing ring (13). The side wall of the second plate (16) away from the magnetic plate (17) is rotatably connected to a rotating rod (22). The side wall of the rotating rod (22) is in contact with the side wall of the cam (21). The protruding parts of the two cams (21) correspond to the two feed slots (8) one by one.

5. A natural graphite material processing and grading device according to claim 4, characterized in that: A cleaning mechanism is provided in the impurity removal tank (9). The cleaning mechanism includes two reciprocating lead screws (23) rotatably connected to the tops of the two impurity removal tanks (9). A slider (24) is threadedly connected to the side wall of the reciprocating lead screw (23). A plurality of bristles (25) are fixedly connected to the side wall of the slider (24) close to the partition plate (12). The side wall of the slider (24) is slidably connected to the inner wall of the impurity removal tank (9). Two first wheels (27) are respectively fixedly connected to the side walls of the two reciprocating lead screws (23) above the fixed block (7). A synchronous belt is connected between the two first wheels (27).

6. A natural graphite material processing and grading device according to claim 5, characterized in that: A rotating mechanism for driving the rotating cylinder (10) to rotate is provided on the fixed block (7). The rotating mechanism includes a one-way bearing (30). The upper end of the fixed block (7) is fixedly connected with a U-shaped plate (26). A vertical rod (31) is rotatably connected to the side wall of the U-shaped plate (26). The side wall of the vertical rod (31) is fixedly connected to the inner ring side wall of the one-way bearing (30). The outer ring side wall of the one-way bearing (30) is fixedly connected to the upper end of the rotating cylinder (10) through a plurality of brackets. The upper end of the U-shaped plate (26) is fixedly connected with a first frame (33). A third plate (34) is hermetically slidably connected to the inner wall of the first frame (33). A toothed plate (35) is fixedly connected to the side wall of the third plate (34). A gear (32) is fixedly connected to the upper end of the vertical rod (31). The side wall of the toothed plate (35) is meshed with the side wall of the gear (32).

7. A natural graphite material processing and grading device according to claim 6, characterized in that: A fourth plate (39) is hermetically slidably connected to the inner wall of the first frame (33). The side wall of the third plate (34) is elastically connected to the side wall of the fourth plate (39) through a plurality of second springs (40). A pressure sensor (42) is installed on the inner wall of the first frame (33). An air jet port (41) is formed in the side wall of the fourth plate (39). An electromagnetic valve is installed in the air jet port (41). The pressure sensor (42) and the electromagnetic valve are electrically connected to an external power supply. Two air outlet pipes (43) are fixedly connected to the inner wall of the first frame (33) between the third plate (34) and the fourth plate (39). The side walls of the two air outlet pipes (43) away from the first frame (33) are respectively fixedly connected to the lower ends of the two sliders (24).

8. A natural graphite material processing and grading device according to claim 7, characterized in that: A second frame (36) is fixedly connected to the upper end of the first frame (33). A fifth plate (44) is hermetically slidably connected to the inner wall of the second frame (36). A one-way air suction pipe (37) is fixedly connected to the inner wall of the second frame (36). The inner wall of the second frame (36) is communicated with the inner wall of the first frame (33) through a one-way air outlet pipe (38). A second wheel (28) is fixedly connected to the side wall of the movable shaft of the motor (2). The upper end of one of the reciprocating lead screws (23) penetrates through the side wall of the U-shaped plate (26) and is fixedly connected with a third wheel (29). A synchronous belt is connected between the second wheel (28) and the third wheel (29). The upper end of the third wheel (29) away from the center is rotatably connected to the side wall of the fifth plate (44) through a connecting rod (45).

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