Raw material wet grinding device and process

Abstract

The application discloses a raw material wet grinding equipment, which comprises a barrel, a rotating shaft, an upper centrifugal roller, a lower centrifugal roller, a rotary push plate, a pressure boosting structure and a water injection mechanism, and discloses a raw material wet grinding process, which comprises the following steps: feeding, water injection, pushing, coarse grinding, fine grinding and discharging. The application has the advantages that the lower centrifugal roller and the upper centrifugal roller are adopted to grind the material in sequence, so that the grinding fineness is good, the processing efficiency is high, and the grinding fineness is ensured. The rotating shaft is used to transmit power and simultaneously drive the water injection mechanism, the rotary push plate, the pressure boosting structure, the lower centrifugal roller and the upper centrifugal roller to move, so that the structure is compact.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding equipment, and in particular to a raw material wet grinding equipment and process. BACKGROUND

[0002] The high-voltage motor of the ball mill drives the cylinder to rotate through a speed reducer. The ore and steel balls in the barrel are brought to a certain height by the friction force and centrifugal force when the cylinder rotates, and due to the action of gravity, parabolic and falling are generated. The ore is gradually crushed under the impact and grinding action.

[0003] The Chinese utility model patent with publication number CN215655500U discloses a multi-stage wet grinding and stripping machine for mineral crushing, relating to the technical field of non-metallic mineral grinding. It includes a shell, a grinding cavity inside the shell, a rotating shaft inside the grinding cavity, a driving motor driving the rotating shaft, two groups of stirring vanes on the rotating shaft, the two groups of stirring vanes being vertically arranged, the upper stirring vanes being inclined from top to bottom, the lower stirring vanes being inclined from bottom to top, and a compressed air inlet on one side of the bottom of the grinding cavity. By setting a compressed air inlet at the bottom of the grinding cavity, the introduction of compressed air can reduce the resistance when the rotating shaft starts, effectively protecting the service life of the motor.

[0004] In the above multi-stage wet grinding and stripping machine for mineral crushing, the upper vanes guide the slurry to flow from top to bottom, and the lower vanes guide the slurry to flow from bottom to top, causing the slurry to tumble between the two groups of vanes. The upper and lower vanes produce strong extrusion and collision, grinding the slurry. Since the grinding is achieved by mutual extrusion and collision between minerals, some minerals with relatively high hardness are difficult to grind and crush, and may be easily trapped. Therefore, the grinding equipment in the prior art has the problem of poor grinding fineness. SUMMARY

[0005] To solve the above technical problems, the present application aims to provide a raw material wet grinding equipment, which includes a cylinder, a rotating shaft, an upper centrifugal roller, a lower centrifugal roller, a rotating push plate, a pressure boosting structure, and a water injection mechanism, and a raw material wet grinding process, which includes the following steps: feeding, water injection, pushing, coarse grinding, fine grinding, and discharging. The raw material wet grinding equipment has the advantage of good grinding fineness.

[0006] To achieve the above-mentioned application purposes, the technical solutions adopted by the present application are as follows:

[0007] The raw material wet grinding device comprises a barrel, a rotating shaft, an upper centrifugal roller, a lower centrifugal roller, a rotary push plate, a pressure increasing structure and a water injection mechanism, the rotating shaft is rotationally connected with the barrel, the rotating shaft is provided with an upper suspension frame, an upper support frame, a lower suspension frame and a lower support frame, the upper suspension frame, the upper support frame, the lower suspension frame and the lower support frame are sequentially arranged from top to bottom, the upper suspension frame is slidably connected with an upper suspension block, the upper support frame is slidably connected with an upper support block, the upper ends and the lower ends of the upper centrifugal roller are rotationally connected with the upper suspension block and the upper support block respectively, the lower suspension frame is slidably connected with a lower suspension block, the lower support frame is slidably connected with a lower support block, the upper ends and the lower ends of the lower centrifugal roller are slidably connected with the lower suspension block and the lower support block respectively, the upper suspension frame is fixedly connected with the rotating shaft, the lower suspension frame and the lower support frame are rotationally connected with the rotating shaft, a speed reduction mechanism is arranged between the lower support frame and the rotating shaft, a rotating bottom plate is fixedly connected with the lower end of the rotating shaft, the rotary push plate is located at the bottom of the barrel and is fixedly connected with the rotating bottom plate, the pressure increasing structure is located above the rotary push plate, an acceleration mechanism is arranged between the pressure increasing structure and the rotating shaft, the barrel is provided with a feeding device located between the rotary push plate and the pressure increasing structure, the water injection mechanism is connected with the rotating shaft, the barrel is communicated with a discharging pipe located above the upper suspension frame, the barrel is fixedly installed with a speed reducer, the output shaft of the speed reducer is fixedly connected with the rotating shaft, the speed reducer is fixedly installed with a driving member, the output shaft of the driving member is fixedly connected with the input shaft of the speed reducer.

[0008] By the arrangement that the lower centrifugal roller and the upper centrifugal roller with higher hardness than the ore are used to sequentially grind the material, the phenomenon that the material particles with higher hardness have larger diameters can be prevented, and the advantage that the grinding material is finer is achieved.

[0009] Preferably, the water injection mechanism comprises a water inlet pipe, a water inlet groove and a rotary water pumping structure, the water inlet groove is arranged at the bottom of the barrel, the water inlet pipe is fixedly connected with the barrel, the rotary water pumping structure is fixedly connected with the rotating shaft, and the water inlet groove is communicated with the water inlet pipe and the rotary water pumping structure respectively.

[0010] By the arrangement, the function of injecting water into the barrel through the water injection mechanism is achieved.

[0011] Preferably, the rotary water pumping structure comprises a water pumping partition plate and an arc-shaped plate, the water pumping partition plate and the arc-shaped plate are fixedly connected with the rotating shaft, a water pumping groove is arranged between the water pumping partition plate and the rotating bottom plate, the middle part and the outer side of the water pumping groove are communicated with the water inlet groove and the inside of the barrel respectively, the arc-shaped plate is located in the water pumping groove, the length of the arc-shaped plate is perpendicular to the axial direction of the rotating shaft, the two side edges of the arc-shaped plate in the width direction are fixedly connected with the water pumping partition plate and the rotating bottom plate respectively, the arc-shaped plate is curved in the circumferential direction of the rotating shaft, and the upper end of the rotary push plate is inclined to the direction in which the arc-shaped plate is away from the one end of the rotating shaft.

[0012] Through the arrangement, the water can be pumped into the barrel through the rotating pump water structure.

[0013] As a preferred, the acceleration mechanism comprises an acceleration driving gear, an acceleration driven gear, an acceleration external gear, an acceleration internal gear ring and a connecting frame, the connecting frame is fixedly installed in the barrel, the acceleration driving gear is fixedly installed on the rotating shaft, the acceleration driven gear is rotatably connected with the connecting frame, the acceleration driven gear is engaged with the acceleration driving gear, the acceleration driven gear is fixedly connected with the acceleration external gear, the acceleration internal gear ring is rotatably connected with the connecting frame, the acceleration external gear is engaged with the acceleration internal gear ring, the diameter of the acceleration driving gear is greater than the diameter of the acceleration driven gear, the diameter of the acceleration external gear is greater than the diameter of the acceleration driven gear, and the supercharging structure is installed on the acceleration internal gear ring.

[0014] Through the arrangement, the supercharging structure can be driven to rotate at a faster speed by the acceleration internal gear ring, so that the acceleration function is realized.

[0015] As a preferred, the supercharging structure comprises a plurality of paddles, the plurality of paddles are circumferentially distributed along the outer wall of the acceleration internal gear ring, the paddles are arranged to be inclined, and the inclined direction of the paddles is opposite to the inclined direction of the rotating push plate.

[0016] Through the arrangement, the water pressure of the water flow driving the material movement can be increased, so that the water flow can drive the material to flow upward to the discharge pipe.

[0017] As a preferred, the deceleration mechanism comprises a deceleration driving gear, a deceleration linkage gear and a deceleration internal gear ring, the deceleration driving gear is fixedly installed on the rotating shaft, the deceleration linkage gear is rotatably connected with the connecting frame, the deceleration internal gear ring is fixedly installed on the lower support frame, the two sides of the deceleration linkage gear are engaged with the deceleration driving gear and the deceleration internal gear ring respectively, and the number of teeth of the deceleration driving gear is less than the number of teeth of the deceleration internal gear ring.

[0018] Through the arrangement, the function of driving the lower support frame with large torque is realized, so that the stability of the lower centrifugal rolling movement can be ensured, and the equipment can be prevented from being stuck.

[0019] As a preferred, a lower connecting sleeve is arranged between the lower suspension frame and the lower support frame, and the upper and lower ends of the lower connecting sleeve are fixedly connected with the lower suspension frame and the lower support frame respectively.

[0020] Through the arrangement, the stability of the lower centrifugal rolling movement is improved.

[0021] Preferably, an upper connecting sleeve is arranged between the upper suspension frame and the upper support frame, the upper and lower ends of the upper connecting sleeve are fixedly connected with the upper suspension frame and the upper support frame respectively, an upper grinding area is arranged between the outer wall of the upper connecting sleeve and the inner wall of the barrel, a lower grinding area is arranged between the outer wall of the lower connecting sleeve and the inner wall of the barrel, and the cross-sectional area of the upper grinding area is greater than that of the lower grinding area.

[0022] By such an arrangement, the stability of the upper centrifugal roller during rotation is improved.

[0023] Preferably, the diameter of the lower centrifugal roller is greater than that of the upper centrifugal roller.

[0024] By such an arrangement, the stability of the equipment during coarse grinding is improved.

[0025] A raw material wet grinding process employs a raw material wet grinding device, which comprises a barrel, a rotating shaft, an upper centrifugal roller, a lower centrifugal roller, a rotary push plate, a pressure boosting structure and a water injection mechanism, the rotating shaft is rotationally connected with the barrel, the rotating shaft is provided with an upper suspension frame, an upper support frame, a lower suspension frame and a lower support frame, the upper suspension frame, the upper support frame, the lower suspension frame and the lower support frame are arranged in sequence from top to bottom, the upper suspension frame is slidably connected with an upper suspension block, the upper support frame is slidably connected with an upper support block, the upper ends and the lower ends of the upper centrifugal roller are rotationally connected with the upper suspension block and the upper support block respectively, the lower suspension frame is slidably connected with a lower suspension block, the lower support frame is slidably connected with a lower support block, the upper ends and the lower ends of the lower centrifugal roller are slidably connected with the lower suspension block and the lower support block respectively, the upper suspension frame is fixedly connected with the rotating shaft, the lower suspension frame and the lower support frame are rotationally connected with the rotating shaft, a speed reduction mechanism is arranged between the lower support frame and the rotating shaft, a rotating bottom plate is fixedly connected with the lower end of the rotating shaft, the rotary push plate is located at the bottom of the barrel and is fixedly connected with the rotating bottom plate, the pressure boosting structure is located above the rotary push plate, an acceleration mechanism is arranged between the pressure boosting structure and the rotating shaft, the barrel is provided with a feeding device located between the rotary push plate and the pressure boosting structure, the water injection mechanism is connected with the rotating shaft, the barrel is communicated with a discharge pipe located above the upper suspension frame, the barrel is fixedly installed with a speed reducer, the output shaft of the speed reducer is fixedly connected with the rotating shaft, the speed reducer is fixedly installed with a driving member, the output shaft of the driving member is fixedly connected with the input shaft of the speed reducer.

[0026] The raw material wet grinding process comprises the following steps:

[0027] S1, feeding: feeding the material into the barrel through the feeding device;

[0028] S2, water injection: the driving member drives the speed reducer to operate, the speed reducer drives the rotating shaft to rotate, the rotating shaft drives the water injection mechanism to operate at the same time, the water injection mechanism injects water into the barrel and generates upward flowing water flow in the barrel;

[0029] S3, push material: the rotating shaft drives the rotating bottom plate and the rotary push plate to rotate, the rotary push plate pushes the downward precipitated material to move upward, and the rotating shaft drives the supercharging structure to further push the water flow and the material upward through the acceleration mechanism;

[0030] S4, rough grinding: the rotating shaft drives the lower support frame, the lower support block and the lower centrifugal roller to rotate around the rotating shaft through the deceleration mechanism, the lower centrifugal roller moves to the inner wall of the cylinder under the action of inertia during rotation around the rotating shaft and grinds the material particles at the inner wall of the cylinder, the material particles are roughly ground, the material particles with smaller weight after rough grinding can be moved upward to the upper centrifugal roller under the action of water flow, and the material particles with larger weight after rough grinding fall downward to the rotary push plate under the action of gravity;

[0031] S5, fine grinding: the rotating shaft drives the upper suspension frame, the upper suspension block, the upper support frame, the upper support block and the upper centrifugal roller to rotate around the rotating shaft, the upper centrifugal roller moves to the inner wall of the cylinder under the action of inertia during rotation around the rotating shaft and grinds the material particles at the inner wall of the cylinder, the material particles are finely ground, the material particles with smaller weight after fine grinding can be moved upward to the discharge pipe under the action of water flow, and the material particles with larger weight after fine grinding fall downward to the lower centrifugal roller under the action of gravity;

[0032] S6, discharging: the material particles after rough grinding and fine grinding enter the discharge pipe under the action of water, and the material is discharged outside the cylinder through the discharge pipe.

[0033] By such a setting: the lower centrifugal roller and the upper centrifugal roller with higher hardness than the ore are used to grind and process the material in turn, which can prevent the phenomenon that some material particles with higher hardness have larger diameter, and has the advantages of better grinding fineness.

[0034] Compared with the prior art, the application has the following beneficial technical effects:

[0035] 1. The lower centrifugal roller and the upper centrifugal roller with higher hardness than the ore are used to grind and process the material in turn, which can prevent the phenomenon that some material particles with higher hardness have larger diameter, and has the advantages of better grinding fineness.

[0036] 2. The material is roughly ground and finely ground by the lower centrifugal roller and the upper centrifugal roller respectively, so that higher processing efficiency can be provided by rough grinding, and the fineness of the grinding material can be ensured by fine grinding.

[0037] 3. The drive unit and reducer drive the rotating shaft to rotate, and the power is transmitted through the rotating shaft to drive the water injection mechanism, rotary push plate, pressurization structure, lower centrifugal roller and upper centrifugal roller. The equipment is driven by the power of a single drive unit to perform water injection, material pushing and abrasion, which reduces the number of drive units, makes the structure more compact, and reduces manufacturing and maintenance costs. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a wet grinding equipment for raw materials in an embodiment of the present invention;

[0039] Figure 2 This is a cross-sectional view of a raw material wet grinding equipment according to an embodiment of the present invention;

[0040] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0041] Figure 4 This is a schematic diagram of the structure of the upper centrifugal roller, lower centrifugal roller, pressurizing structure and rotary push plate in an embodiment of the present invention;

[0042] Figure 5 This is a top view of the arc-shaped plate in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of a wet grinding process for raw materials in an embodiment of the present invention.

[0044] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0045] 11. Cylinder; 12. Rotating shaft; 13. Reducer; 14. Drive unit; 15. Feeding device; 16. Discharge pipe; 21. Upper centrifugal roller; 22. Upper suspension frame; 23. Upper support frame; 24. Upper suspension block; 25. Upper support block; 26. Upper connecting sleeve; 27. Upper grinding zone; 31. Lower centrifugal roller; 32. Lower suspension frame; 33. Lower support frame; 34. Lower suspension block; 35. Lower support block; 36. Lower connecting sleeve 37. Lower grinding zone; 41. Rotary push plate; 42. Rotating base plate; 51. Water inlet pipe; 52. Water inlet trough; 53. Pump water baffle; 54. Arc plate; 55. Pump water trough; 61. Accelerating drive gear; 62. Accelerating driven gear; 63. Accelerating external gear; 64. Accelerating internal gear ring; 65. Connecting frame; 66. Paddle blade; 71. Reduction drive gear; 72. Reduction linkage gear; 73. Reduction internal gear ring. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments. However, the scope of protection of this invention is not limited to the specific embodiments described below.

[0047] Reference Figures 1-5 The raw material wet grinding device comprises a barrel 11, a rotating shaft 12, an upper centrifugal roller 21, a lower centrifugal roller 31, a rotating push plate 41, a pressure boosting structure and a water injection mechanism. The rotating shaft 12 is rotationally connected with the barrel 11. The rotating shaft 12 is provided with an upper hanging bracket 22, an upper supporting bracket 23, a lower hanging bracket 32 and a lower supporting bracket 33, which are arranged in sequence from top to bottom. The upper centrifugal roller 21 and the lower centrifugal roller 31 are made of a material with higher hardness than the material particles.

[0048] The upper hanging bracket 22 is slidingly connected with an upper hanging block 24, and the upper supporting bracket 23 is slidingly connected with an upper supporting block 25. The upper centrifugal roller 21 is rotationally connected with the upper hanging block 24 and the upper supporting block 25 at the upper end and the lower end, respectively. An upper connecting sleeve 26 is arranged between the upper hanging bracket 22 and the upper supporting bracket 23. The upper ends and the lower ends of the upper connecting sleeve 26 are fixedly connected with the upper hanging bracket 22 and the upper supporting bracket 23, respectively. An upper grinding area 27 is arranged between the outer wall of the upper connecting sleeve 26 and the inner wall of the barrel 11.

[0049] The lower hanging bracket 32 is slidingly connected with a lower hanging block 34, and the lower supporting bracket 33 is slidingly connected with a lower supporting block 35. The upper ends and the lower ends of the lower centrifugal roller 31 are slidingly connected with the lower hanging block 34 and the lower supporting block 35, respectively. The upper hanging bracket 22 is fixedly connected with the rotating shaft 12, and the lower hanging bracket 32 and the lower supporting bracket 33 are rotationally connected with the rotating shaft 12. A speed reduction mechanism is arranged between the lower supporting bracket 33 and the rotating shaft 12. The speed reduction mechanism comprises a speed reduction driving gear 71, a speed reduction linkage gear 72 and a speed reduction inner gear ring 73. The speed reduction driving gear 71 is fixedly installed on the rotating shaft 12. The speed reduction linkage gear 72 is rotationally connected with the connecting bracket 65. The speed reduction inner gear ring 73 is fixedly installed on the lower supporting bracket 33. The two sides of the speed reduction linkage gear 72 are meshed with the speed reduction driving gear 71 and the speed reduction inner gear ring 73, respectively. The number of teeth of the speed reduction driving gear 71 is less than the number of teeth of the speed reduction inner gear ring 73. A lower connecting sleeve 36 is arranged between the lower hanging bracket 32 and the lower supporting bracket 33. The upper ends and the lower ends of the lower connecting sleeve 36 are fixedly connected with the lower hanging bracket 32 and the lower supporting bracket 33, respectively. A lower grinding area 37 is arranged between the outer wall of the lower connecting sleeve 36 and the inner wall of the barrel 11. The cross-sectional area of the upper grinding area 27 is greater than the cross-sectional area of the lower grinding area 37. The diameter of the lower centrifugal roller 31 is greater than the diameter of the upper centrifugal roller 21.

[0050] The lower end of the rotating shaft 12 is fixedly connected with a rotating bottom plate 42, the rotating push plate 41 is located at the bottom of the barrel 11 and is fixedly connected with the rotating bottom plate 42, and the supercharging structure is located above the rotating push plate 41. An acceleration mechanism is arranged between the supercharging structure and the rotating shaft 12. The acceleration mechanism comprises an acceleration driving gear 61, an acceleration driven gear 62, an acceleration outer gear 63, an acceleration inner gear ring 64 and a connecting frame 65. The connecting frame 65 is fixedly installed in the barrel 11, the acceleration driving gear 61 is fixedly installed on the rotating shaft 12, the acceleration driven gear 62 is rotatably connected with the connecting frame 65, the acceleration driven gear 62 is in mesh with the acceleration driving gear 61, the acceleration driven gear 62 is fixedly connected with the acceleration outer gear 63, the acceleration inner gear ring 64 is rotatably connected with the connecting frame 65, the acceleration outer gear 63 is in mesh with the acceleration inner gear ring 64, the diameter of the acceleration driving gear 61 is greater than the diameter of the acceleration driven gear 62, the diameter of the acceleration outer gear 63 is greater than the diameter of the acceleration driven gear 62, and the supercharging structure is installed on the acceleration inner gear ring 64. The supercharging structure comprises a plurality of paddles 66, the plurality of paddles 66 are distributed along the outer wall circumference of the acceleration inner gear ring 64, the paddles 66 are arranged obliquely, and the oblique direction of the paddles 66 is opposite to the oblique direction of the rotating push plate 41.

[0051] The water injection mechanism is connected with the rotating shaft 12. The water injection mechanism comprises a water inlet pipe 51, a water inlet groove 52 and a rotating water pumping structure. The water inlet groove 52 is arranged at the bottom of the barrel 11, the water inlet pipe 51 is fixedly connected with the barrel 11, the rotating water pumping structure is fixedly connected with the rotating shaft 12, the water inlet groove 52 is in communication with the water inlet pipe 51 and the rotating water pumping structure respectively, and the water inlet pipe 51 is in communication with an external water source. The rotating water pumping structure comprises a water pumping partition plate 53 and an arc-shaped plate 54. The water pumping partition plate 53 and the arc-shaped plate 54 are both fixedly connected with the rotating shaft 12. A water pumping groove 55 is arranged between the water pumping partition plate 53 and the rotating bottom plate 42. The middle part and the outer side of the water pumping groove 55 are in communication with the water inlet groove 52 and the inside of the barrel 11 respectively. The arc-shaped plate 54 is located in the water pumping groove 55. The length of the arc-shaped plate 54 is perpendicular to the axial direction of the rotating shaft 12. The two side edges of the arc-shaped plate 54 in the width direction are fixedly connected with the water pumping partition plate 53 and the rotating bottom plate 42 respectively. The arc-shaped plate 54 is bent in the circumferential direction of the rotating shaft 12. The upper end of the rotating push plate 41 is inclined to the bending direction of the end of the arc-shaped plate 54 away from the rotating shaft 12.

[0052] The barrel 11 is provided with a feeding device 15 located between the rotating push plate 41 and the supercharging structure. The feeding device 15 adopts a screw feeder. The barrel 11 is in communication with a discharging pipe 16 located above the upper suspension frame 22. The barrel 11 is fixedly installed with a speed reducer 13. The output shaft of the speed reducer 13 is fixedly connected with the rotating shaft 12. The speed reducer 13 is fixedly installed with a driving member 14. The driving member 14 is an electric motor. The output shaft of the driving member 14 is fixedly connected with the input shaft of the speed reducer 13.

[0053] Reference Figure 6 A raw material wet grinding process, comprising the following steps:

[0054] S1, feeding: feeding the material into the barrel 11 through the feeding device 15;

[0055] S2, water injection: the driving member 14 drives the speed reducer 13 to rotate, the speed reducer 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the water injection mechanism to rotate at the same time, the water injection mechanism injects water into the barrel 11 and generates upward flow of water in the barrel 11;

[0056] S3, pushing material: the rotating shaft 12 drives the rotating bottom plate 42 and the rotary push plate 41 to rotate at the same time, the rotary push plate 41 pushes the downwardly precipitated material to move upward, the rotating shaft 12 drives the booster structure to further push the water flow and the material to move upward through the acceleration mechanism at the same time, the rotating shaft 12 drives the booster structure to further push the water flow and the material to move upward through the acceleration mechanism at the same time;

[0057] S4, coarse grinding: the rotating shaft 12 drives the lower support frame 33, the lower support block 35 and the lower centrifugal roller 31 to rotate around the rotating shaft 12 through the speed reduction mechanism at the same time, the lower centrifugal roller 31 moves to the inner wall of the barrel 11 under the action of inertia during rotation around the rotating shaft 12 and grinds the material particles at the inner wall of the barrel 11, the material particles that have completed coarse grinding are small in weight and can be moved upward to the upper centrifugal roller 21 under the action of water flow, the material particles that have not completed coarse grinding are large in weight and fall downward to the rotary push plate 41 under the action of gravity;

[0058] S5, fine grinding: the rotating shaft 12 drives the upper suspension frame 22, the upper suspension block 24, the upper support frame 23, the upper support block 25 and the upper centrifugal roller 21 to rotate around the rotating shaft 12 at the same time, the upper centrifugal roller 21 moves to the inner wall of the barrel 11 under the action of inertia during rotation around the rotating shaft 12 and grinds the material particles at the inner wall of the barrel 11, the material particles that have completed fine grinding are small in weight and can be moved upward to the discharge pipe 16 under the action of water flow, the material particles that have not completed fine grinding are large in weight and fall downward to the lower centrifugal roller 31 under the action of gravity;

[0059] S6, discharging: the material particles that have completed coarse grinding and fine grinding enter the discharge pipe 16 under the action of water and are discharged outside the barrel 11 through the discharge pipe 16.

[0060] The embodiment has the following advantages:

[0061] The lower centrifugal roller 31 and the upper centrifugal roller 21 with higher hardness than the ore are used to grind the material in turn, which can prevent the phenomenon that some material particles with high hardness have large diameters, and the advantage of good grinding fineness is achieved.

[0062] The material is coarsely ground and finely ground by the lower centrifugal roller 31 and the upper centrifugal roller 21 respectively, so that the coarsely grinding can provide high processing efficiency, and the finely grinding can ensure the fineness of the grinding material.

[0063] The driving member 14 and the speed reducer 13 drive the rotating shaft 12 to rotate, and the rotating shaft 12 transmits power to drive the water injection mechanism, the rotary push plate 41, the pressure increasing structure, the lower centrifugal roller 31 and the upper centrifugal roller 21 to move. The water injection, material pushing and material grinding are driven by the power driving device of one driving member 14, which reduces the number of driving members 14, makes the structure more compact, and reduces the manufacturing and maintenance costs.

[0064] The rotating shaft 12 drives the rotary water pumping structure to rotate in the rotating process, so that the rotary water pumping structure pumps water in the external water source into the inside of the barrel 11 through the water inlet pipe 51 and the water inlet groove 52, and realizes the function of injecting water into the barrel 11 through the water injection mechanism.

[0065] The rotating shaft 12 drives the arc-shaped plate 54 to rotate, and the arc-shaped plate 54 pushes the water in the water pumping groove 55 to rotate. The water flows to the outside of the water pumping groove 55 in the rotating process due to the inertial effect, so that the water in the water pumping groove 55 can be driven to enter the barrel 11, thereby realizing the function of pumping water into the barrel 11 through the rotary water pumping structure.

[0066] Since the bending direction of the end of the arc-shaped plate 54 away from the rotating shaft 12 is the same as the tilting direction of the upper end of the rotary push plate 41, the arc-shaped plate 54 can push the water to move to the outside of the water pumping groove 55 while the rotating shaft 12 drives the rotary push plate 41 to push the material to move upward. When material particles accidentally enter the arc-shaped groove, the material particles can be pushed by the arc-shaped plate 54 and move to the outside of the water pumping groove 55 along the inclined profile of the arc-shaped plate 54, so that the material particles can be prevented from entering the water inlet groove 52 and the water inlet pipe 51 through the water pumping groove 55, and the water inlet groove 52 and the water inlet pipe 51 can be prevented from being blocked by the material.

[0067] The rotating shaft 12 drives the acceleration outer gear 63 to rotate through the acceleration driving gear 61 and the acceleration driven gear 62, and the acceleration outer gear 63 drives the acceleration inner ring gear 64 meshing with the acceleration outer gear 63 to rotate, so as to drive the pressure increasing structure to rotate through the acceleration inner ring gear 64. The diameter of the acceleration driving gear 61 is greater than the diameter of the acceleration driven gear 62, so that the rotation speed of the acceleration driven gear 62 is greater than the rotation speed of the acceleration driving gear 61. The acceleration driven gear 62 is fixed with the acceleration outer gear 63, so that the rotation speed of the acceleration driven gear 62 is the same as the rotation speed of the acceleration outer gear 63. Since the diameter of the acceleration outer gear 63 is greater than the diameter of the acceleration driven gear 62, the acceleration outer gear 63 can drive the acceleration inner ring gear 64 to rotate at a greater linear speed, and in turn the acceleration inner ring gear 64 can drive the pressure increasing structure to rotate at a faster speed, thereby realizing the function of acceleration.

[0068] The paddle 66 is driven to rotate by the accelerating inner gear ring 64, and the material and water flow are pushed to move by the obliquely arranged paddle 66, which can increase the water pressure of the water flow driving the material to move, and ensure that the water flow can carry the material to flow upward to the discharge pipe 16.

[0069] Through the transmission of the accelerating driven gear 62 and the accelerating outer gear 63, the rotating direction of the outer gear ring is opposite to the rotating shaft 12, so that the rotating direction of the paddle 66 is opposite to that of the rotary push plate 41. When the rotary push plate 41 pushes the material to move, the material and water flow have a circumferential movement component along the rotating shaft 12, and the paddle 66 pushes the water flow in the opposite direction, so that the paddle 66 can increase the relative speed between the water flow and the paddle 66 by using the circumferential movement component of the water flow along the rotating shaft 12, and push the water flow to move upward with greater pressure, thereby ensuring the water pressure above the paddle 66 and ensuring that the water flow can carry the material to flow upward to the discharge pipe 16.

[0070] The rotating shaft 12 drives the reducing linkage gear 72 to rotate through the reducing driving gear 71, and then drives the reducing inner gear ring 73 and the lower support frame 33 to rotate through the reducing linkage gear 72. Since the number of teeth of the reducing driving gear 71 is less than that of the reducing inner gear ring 73, when the reducing driving gear 71 drives the reducing inner gear ring 73 to rotate through the reducing linkage gear 72, the rotating speed of the reducing inner gear ring 73 is less than that of the reducing driving gear 71, and the rotating torque of the reducing inner gear ring 73 is greater than that of the reducing driving gear 71, thereby realizing the function of driving the lower support frame 33 with large torque.

[0071] Since the lower centrifugal roller 31 is used for rough grinding of larger material particles, the resistance received by the lower centrifugal roller 31 is large when the lower centrifugal roller 31 rotates. The reducing mechanism is used to drive the lower centrifugal roller 31 to rotate with large torque, thereby ensuring the stability of the rotation of the lower centrifugal roller 31 and preventing the equipment from being stuck.

[0072] The reducing driving gear 71 drives the reducing inner gear ring 73 to rotate in different directions through the reducing linkage gear 72, so that the rotating direction of the lower centrifugal roller 31 is opposite to that of the rotating shaft 12 and the upper centrifugal roller 21, and the upper centrifugal roller 21 and the lower centrifugal roller 31 rotate in different directions, which can make the stress of the cylinder 11 more balanced during the operation of the equipment and improve the stability of the cylinder 11.

[0073] The lower suspension frame 32 and the lower support frame 33 are connected as a whole through the lower connecting sleeve 36, so that the lower centrifugal roller 31 can be provided with a pushing force from the upper and lower ends of the lower centrifugal roller 31 through the lower suspension frame 32 and the lower support frame 33 respectively, thereby improving the stability of the lower centrifugal roller 31 when moving.

[0074] The upper suspension frame 22 and the upper support frame 23 are connected as a whole through the upper connecting sleeve 26, so that the upper centrifugal roller 21 can be provided with thrust force from the upper suspension frame 22 and the upper support frame 23 respectively from the upper ends of the upper centrifugal roller 21, thereby improving the stability of the upper centrifugal roller 21 during movement.

[0075] The cross-sectional area of the upper grinding area 27 is greater than that of the lower grinding area 37, so that the flow rate of water in the upper grinding area 27 is less than that of the lower grinding area 37. The material particles after coarse grinding are pushed to the upper centrifugal roller 21 by the water flow with a faster flow rate in the lower grinding area 37. Since the flow rate of water in the upper grinding area 27 is slow, the material particles that have not completed fine grinding are too heavy to be pushed out of the upper grinding area 27 by the water flow with a slow flow rate in the upper grinding area 27, thereby preventing the material particles that have not completed fine grinding from entering the discharge pipe 16. The material particles that have been crushed by the upper centrifugal roller 21 and completed fine grinding are light enough to be pushed up to the discharge pipe 16 by the water flow with a slow flow rate in the upper grinding area 27, thereby preventing the processed material from being coarse and ensuring the grinding effect on the material.

[0076] Since the lower centrifugal roller 31 needs to grind larger material particles during coarse grinding, a larger diameter lower centrifugal roller 31 is used to grind the material particles, thereby improving the stability of the equipment during coarse grinding. The upper centrifugal roller 21 needs to grind smaller material particles during fine grinding, so a smaller diameter lower centrifugal roller 31 is used to grind the material particles, thereby reducing the weight of the equipment.

[0077] According to the disclosure and teaching of the above specification, those skilled in the art of the present application can also make changes and modifications to the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of explanation and do not constitute any limitation on the application.

Claims

1. A raw material wet milling apparatus, characterized by: The utility model provides a centrifugal rolling device, including cylinder (11), pivot (12), upper centrifugal rolling (21), lower centrifugal rolling (31), rotary push plate (41), pressure increasing structure and water injection mechanism, pivot (12) is connected with cylinder (11) rotation, pivot (12) is equipped with upper suspension frame (22), upper support frame (23), lower suspension frame (32) and lower support frame (33), upper suspension frame (22), upper support frame (23), lower suspension frame (32) and lower support frame (33) are sequentially arranged from top to bottom, upper suspension frame (22) is connected with upper suspension block (24) sliding, upper support frame (23) is connected with upper support block (25) sliding, and the upper and lower ends of upper centrifugal rolling (21) are rotationally connected with upper suspension block (24) and upper support block (25) respectively, lower suspension frame (32) is connected with lower suspension block (34) sliding, lower support frame (33) is connected with lower support block (35) sliding, and the upper and lower ends of lower centrifugal rolling (31) are slidingly connected with lower suspension block (34) and lower support block (35) respectively, upper suspension frame (22) is fixedly connected with pivot (12), lower suspension frame (32) and lower support frame (33) are rotationally connected with pivot (12), and a speed reduction mechanism is arranged between lower support frame (33) and pivot (12), the lower end of pivot (12) is fixedly connected with rotating bottom plate (42), rotary push plate (41) is located at the bottom of cylinder (11) and is fixedly connected with rotating bottom plate (42), the pressure increasing structure is located above rotary push plate (41), an acceleration mechanism is arranged between the pressure increasing structure and pivot (12), cylinder (11) is provided with feeding device (15) between rotary push plate (41) and the pressure increasing structure, the water injection mechanism is connected with pivot (12), cylinder (11) is communicated with discharge pipe (16) located above upper suspension frame (22), cylinder (11) is fixedly installed with speed reducer (13), the output shaft of speed reducer (13) is fixedly connected with pivot (12), speed reducer (13) is fixedly installed with driving piece (14), and the output shaft of driving piece (14) is fixedly connected with the input shaft of speed reducer (13).

2. The raw material wet-milling apparatus according to claim 1, characterized by: The water injection mechanism includes a water inlet pipe (51), a water inlet groove (52), and a rotary pump water structure. The water inlet groove (52) is arranged at the bottom of the cylinder (11), the water inlet pipe (51) is fixedly connected with the cylinder (11), and the rotary pump water structure is fixedly connected with the pivot (12). The water inlet groove (52) is in communication with the water inlet pipe (51) and the rotary pump water structure.

3. The raw material wet-milling apparatus according to claim 2, characterized by: The water pumping structure comprises a pump water partition plate (53) and an arc plate (54), both of which are fixedly connected with the rotating shaft (12), a pump water groove (55) is arranged between the pump water partition plate (53) and the rotating bottom plate (42), the pump water groove (55) is respectively communicated with the water inlet groove (52) and the inside of the barrel (11), the arc plate (54) is located in the pump water groove (55), the length of the arc plate (54) is perpendicular to the axial direction of the rotating shaft (12), the two side edges of the arc plate (54) in the width direction are fixedly connected with the pump water partition plate (53) and the rotating bottom plate (42) respectively, the arc plate (54) is curved in the circumferential direction of the rotating shaft (12), and the upper end of the rotating push plate (41) is inclined to the direction in which the arc plate (54) is curved away from one end of the rotating shaft (12).

4. The raw material wet-milling apparatus according to claim 1, characterized by: The acceleration mechanism comprises an acceleration driving gear (61), an acceleration driven gear (62), an acceleration external gear (63), an acceleration internal gear ring (64) and a connecting frame (65), the connecting frame (65) is fixedly installed in the barrel (11), the acceleration driving gear (61) is fixedly installed on the rotating shaft (12), the acceleration driven gear (62) is rotationally connected with the connecting frame (65), the acceleration driven gear (62) is meshed with the acceleration driving gear (61), the acceleration driven gear (62) is fixedly connected with the acceleration external gear (63), the acceleration internal gear ring (64) is rotationally connected with the connecting frame (65), the acceleration external gear (63) is meshed with the acceleration internal gear ring (64), the diameter of the acceleration driving gear (61) is greater than the diameter of the acceleration driven gear (62), the diameter of the acceleration external gear (63) is greater than the diameter of the acceleration driven gear (62), and the pressure increasing structure is installed on the acceleration internal gear ring (64).

5. The raw material wet-milling apparatus according to claim 4, characterized by: The pressure increasing structure comprises a plurality of paddles (66), the plurality of paddles (66) are distributed along the circumferential direction of the outer wall of the acceleration internal gear ring (64), the paddles (66) are arranged to be inclined, and the direction in which the paddles (66) are inclined is opposite to the direction in which the rotating push plate (41) is inclined.

6. The raw material wet-milling apparatus according to claim 4, characterized by: The deceleration mechanism comprises a deceleration driving gear (71), a deceleration linkage gear (72) and a deceleration internal gear ring (73), the deceleration driving gear (71) is fixedly installed on the rotating shaft (12), the deceleration linkage gear (72) is rotationally connected with the connecting frame (65), the deceleration internal gear ring (73) is fixedly installed on the lower support frame (33), the two sides of the deceleration linkage gear (72) are respectively meshed with the deceleration driving gear (71) and the deceleration internal gear ring (73), and the number of teeth of the deceleration driving gear (71) is less than the number of teeth of the deceleration internal gear ring (73).

7. The raw material wet-milling apparatus according to claim 1 or 6, characterized by: A lower connecting sleeve (36) is arranged between the lower suspension frame (32) and the lower support frame (33), and the upper and lower ends of the lower connecting sleeve (36) are fixedly connected with the lower suspension frame (32) and the lower support frame (33) respectively.

8. The raw material wet-milling apparatus according to claim 7, characterized by: An upper connecting sleeve (26) is arranged between the upper hanging bracket (22) and the upper supporting bracket (23), the upper and lower ends of the upper connecting sleeve (26) are fixedly connected with the upper hanging bracket (22) and the upper supporting bracket (23) respectively, an upper grinding area (27) is arranged between the outer wall of the upper connecting sleeve (26) and the inner wall of the cylinder (11), the outer wall of the lower connecting sleeve (36) and the inner wall of the cylinder (11) are provided with a lower grinding area (37), and the cross-sectional area of the upper grinding area (27) is greater than that of the lower grinding area (37).

9. The raw material wet-milling apparatus according to claim 1, characterized by: The diameter of the lower centrifugal roller (31) is greater than that of the upper centrifugal roller (21).

10. A raw material wet milling process, characterized by, The raw material wet grinding device comprises a cylinder (11), a rotating shaft (12), an upper centrifugal roller (21), a lower centrifugal roller (31), a rotary push plate (41), a pressure increasing structure and a water injection mechanism, the rotating shaft (12) is rotationally connected with the cylinder (11), the rotating shaft (12) is provided with an upper hanging bracket (22), an upper supporting bracket (23), a lower hanging bracket (32) and a lower supporting bracket (33), the upper hanging bracket (22), the upper supporting bracket (23), the lower hanging bracket (32) and the lower supporting bracket (33) are arranged in sequence from top to bottom, the upper hanging bracket (22) is slidably connected with an upper hanging block (24), the upper supporting bracket (23) is slidably connected with an upper supporting block (25), the upper ends of the upper centrifugal roller (21) and the upper supporting block (25) are rotationally connected with the upper hanging block (24) and the upper supporting block (25) respectively, the lower hanging bracket (32) is slidably connected with a lower hanging block (34), the lower supporting bracket (33) is slidably connected with a lower supporting block (35), the upper and lower ends of the lower centrifugal roller (31) are slidably connected with the lower hanging block (34) and the lower supporting block (35) respectively, the upper hanging bracket (22) is fixedly connected with the rotating shaft (12), the lower hanging bracket (32) and the lower supporting bracket (33) are rotationally connected with the rotating shaft (12), a speed reduction mechanism is arranged between the lower supporting bracket (33) and the rotating shaft (12), a rotating bottom plate (42) is fixedly connected with the lower end of the rotating shaft (12), the rotary push plate (41) is located at the bottom of the cylinder (11) and is fixedly connected with the rotating bottom plate (42), the pressure increasing structure is located above the rotary push plate (41), an acceleration mechanism is arranged between the pressure increasing structure and the rotating shaft (12), the cylinder (11) is provided with a feeding device (15) located between the rotary push plate (41) and the pressure increasing structure, the water injection mechanism is connected with the rotating shaft (12), the cylinder (11) is communicated with a discharging pipe (16) located above the upper hanging bracket (22), the cylinder (11) is fixedly installed with a speed reducer (13), the output shaft of the speed reducer (13) is fixedly connected with the rotating shaft (12), the speed reducer (13) is fixedly installed with a driving member (14), and the output shaft of the driving member (14) is fixedly connected with the input shaft of the speed reducer (13). The raw material wet grinding process comprises the following steps: S1, feeding: feeding materials into the cylinder (11) through the feeding device (15); S2, water injection: the driving part (14) drives the speed reducer (13) to operate, the speed reducer (13) drives the rotating shaft (12) to rotate, the rotating shaft (12) rotates at the same time drives the water injection mechanism to operate, the water injection mechanism injects water into the cylinder (11) and makes the cylinder (11) produce upward flowing water flow; S3, pushing material: the rotating shaft (12) rotates at the same time drives the rotating bottom plate (42) and the rotary push plate (41) to rotate, the rotary push plate (41) pushes the downward precipitated material to move upward, the rotating shaft (12) rotates at the same time drives the supercharging structure through the acceleration mechanism to further push the water flow and the material to move upward; S4, rough grinding: the rotating shaft (12) rotates at the same time, the lower support frame (33), the lower support block (35) and the lower centrifugal roller (31) are driven by the speed reducer to rotate around the rotating shaft (12), the lower centrifugal roller (31) moves to the inner wall of the cylinder (11) under the action of inertia in the process of rotating around the rotating shaft (12) and grinds the material particles at the inner wall of the cylinder (11), the material particles are roughly ground, the material particles with small weight after rough grinding can be driven by the water flow to move upward to the upper centrifugal roller (21), the material particles with large weight after rough grinding fall downward to the rotary push plate (41) under the action of gravity; S5, fine grinding: the rotating shaft (12) rotates at the same time, drives the upper suspension frame (22), the upper suspension block (24), the upper support frame (23), the upper support block (25) and the upper centrifugal roller (21) to rotate around the rotating shaft (12), the upper centrifugal roller (21) moves to the inner wall of the cylinder (11) under the action of inertia in the process of rotating around the rotating shaft (12) and grinds the material particles at the inner wall of the cylinder (11), the material particles are finely ground, the material particles with small weight after fine grinding can be driven by the water flow to move upward to the discharge pipe (16), the material particles with large weight after fine grinding fall downward to the lower centrifugal roller (31) under the action of gravity; S6, discharging: the material particles after rough grinding and fine grinding are pushed into the discharge pipe (16) by water, and the material is sent out of the cylinder (11) through the discharge pipe (16).

Images