Search

CN-119951630-B - Separating wheel mechanism and screen-free vertical sand mill with same

CN119951630BCN 119951630 BCN119951630 BCN 119951630BCN-119951630-B

Abstract

The invention relates to the field of sanding equipment, in particular to a separating wheel mechanism, which comprises a separating wheel seat, wherein the central position of the top of the separating wheel seat is a discharging area, a plurality of separating convex blocks are uniformly arranged on the top of the separating wheel seat around the discharging area, a separating discharging channel communicated with the discharging area is formed between adjacent separating convex blocks, the separating discharging channel is in a curve shape, and the separating discharging channel gradually expands from outside to inside. Because the inlet of the separation discharging channel is smaller and the outlet is larger, the probability that the grinding medium flows into the separation discharging channel from the inlet is effectively reduced, the slurry in the separation discharging channel can flow to the discharging area quickly, and the discharging rate is increased. The invention also relates to a vertical sand mill without screen mesh with the separating wheel mechanism, which further eliminates the possibility of outwards discharging grinding media by arranging a main shaft discharging channel and a baffle plate, and realizes the complete separation of grinding slurry and grinding media.

Inventors

  • ZHANG HONGLIANG
  • SONG KEFU
  • DENG SHIJUN
  • ZHOU CHUANFANG

Assignees

  • 东莞市琅菱机械有限公司
  • 湖北琅菱智能装备有限公司

Dates

Publication Date
20260508
Application Date
20250213

Claims (7)

  1. 1. A separating wheel mechanism (4) is characterized by comprising a separating wheel seat (41), wherein the center position of the top of the separating wheel seat (41) is a discharging area (42), a plurality of separating convex blocks (43) are uniformly arranged on the top of the separating wheel seat (41) around the discharging area (42), separating discharging channels (44) communicated with the discharging area (42) are formed between the adjacent separating convex blocks (43), the separating discharging channels (44) are curved, the separating discharging channels (44) gradually expand from outside to inside, the separating convex blocks (43) comprise a first arc-shaped surface (431), a second arc-shaped surface (432) and a connecting curved surface (433) which are sequentially connected, the first arc-shaped surface (431) and the second arc-shaped surface (432) respectively extend along the direction from the center position to the edge position of the separating wheel seat (41), the connecting curved surface (433) is close to the edge position of the separating wheel seat (41), along the rotating direction of the separating wheel seat (41), the separating discharging channel (44) is formed between a second arc-shaped surface (432) in one separating lug (43) and a first arc-shaped surface (431) in the next separating lug (43), the curvature radius of the first arc-shaped surface (431) is larger than or equal to that of the second arc-shaped surface (432), along the rotation direction of the separating wheel seat (41), the connecting curved surface (433) sequentially comprises a small arc-shaped surface (4331), a third arc-shaped surface (4332) and a large arc-shaped surface (4333), the small arc-shaped surface (4331) is connected with one end, far away from the center position, of the first arc-shaped surface (431), one end, far away from the center position, of the second arc-shaped surface (432), of the first arc-shaped surface (431), the second arc-shaped surface (432) and the third arc-shaped surface (4332) are respectively a first arc line, a second arc line and a third arc line, and the projections of the first arc-shaped surface, the second arc-shaped surface (4332) on the horizontal plane are respectively, the same arc-shaped surface (4331) is connected with one end, far away from the center position, of the second arc-shaped surface (4332), and the third arc-shaped surface is a long distance (d) between the third arc-shaped surface (43) and the end (D) of the third arc-shaped surface (43) and the end (D) is the end, and the end (D) of the end (2) of the arc-shaped surface).
  2. 2. A separating wheel mechanism according to claim 1, wherein in the same separating bump (43), a distance (d 3) between a center of curvature (O) of the third arcuate line and an outer end point (A) of the first arcuate line is smaller than a distance (d 4) between the center of curvature (O) of the third arcuate line and an outer end point (B) of the second arcuate line.
  3. 3. The separating wheel mechanism according to claim 1, wherein a fixed ring (45) is arranged in the discharging area (42), a plurality of countersinks (46) for fixing are formed in the separating wheel seat (41) positioned in the fixed ring (45), and the separating protruding blocks (43) are detachably connected with the separating wheel seat (41).
  4. 4. A separating wheel mechanism according to claim 1, wherein a plurality of strip-shaped pushing projections (47) are uniformly arranged on the bottom surface of the separating wheel seat (41) around the central position, a first inclined plane (472) is arranged on the facing side of each strip-shaped pushing projection (47) along the rotation direction of the separating wheel seat (41), a vertical plane (471) is arranged on the back side, the vertical planes (471) are mutually perpendicular to the bottom surface of the separating wheel seat (41), the vertical planes (471) are arranged at an included angle with the radial direction of the separating wheel seat (41), and the first inclined planes (472) are arranged at an included angle with the bottom surface of the separating wheel seat (41).
  5. 5. A non-screen vertical sand mill is characterized by comprising a separating wheel mechanism (4) according to any one of claims 1-4, a grinding cylinder (2), a main shaft (6) rotationally connected with the grinding cylinder (2) and a driving mechanism (5) driving the main shaft (6) to rotate, wherein a grinding rotor (3) is arranged in the grinding cylinder (2), the grinding rotor (3) comprises a top wall (34) and a side wall (35) connected with the outer edge of the top wall (34), the side wall (35) is cylindrical, a grinding inner cavity (31) is formed in the grinding rotor (3), a plurality of reducing channels (33) are formed in the side wall (35) in a penetrating manner, the separating wheel mechanism (4) is arranged in the grinding inner cavity (31), a main shaft discharging channel (61) is formed in the main shaft (6), the bottom end of the main shaft (6) sequentially penetrates through the inner cavity of the grinding cylinder (2) and the top wall (34) of the separating wheel mechanism (42) and extends to a discharging area (42), the main shaft discharging channel (61) is communicated with the discharging area (42), and the grinding rotor (3) and the separating wheel mechanism (4) synchronously rotate along with the main shaft (6).
  6. 6. The vertical sand mill without screen cloth of claim 5, further comprising a discharge cylinder (7), wherein the top end of the main shaft (6) extends to the inside of the discharge cylinder (7), the top end of the main shaft discharge channel (61) penetrates through the top wall of the main shaft (6) to be communicated with the inside of the discharge cylinder (7), a plurality of discharge connection channels (62) communicated with the main shaft discharge channel (61) are uniformly arranged at the bottom of the main shaft (6) along the peripheral side of the main shaft discharge channel (61), and one ends of the plurality of discharge connection channels (62) far away from the main shaft discharge channel (61) respectively extend downwards obliquely relative to the central axis of the main shaft (6) and penetrate through the side wall of the main shaft (6), and the projection of the plurality of discharge connection channels (62) on a horizontal plane is arranged at an included angle with the radial direction of the main shaft (6).
  7. 7. The vertical sand mill without screen cloth of claim 6, wherein a baffle (8) is fixed at the top end of the main shaft (6), a baffle through hole (81) communicated with the main shaft discharging channel (61) is formed in the middle of the baffle (8), and the inner diameter of the baffle through hole (81) is sequentially reduced from bottom to top.

Description

Separating wheel mechanism and screen-free vertical sand mill with same Technical Field The invention relates to the field of sanding equipment, in particular to a separating wheel mechanism and a vertical sand mill without a screen mesh with the separating wheel mechanism. Background The nanometer sand mill is one kind of high efficiency equipment for superfine grinding, especially nanometer level material dispersing and grinding, and has grinding rotor rotating at high speed to energize grinding medium, zirconium ball, etc. and material to produce high frequency collision and friction motion between the grinding medium and the wall of the grinding barrel, and the material grains are ground to nanometer level in the extrusion shearing action of the grinding medium. In order to avoid that grinding media such as zirconium balls are discharged together with ground materials, a screen is usually arranged on a grinding main shaft in the prior art, and the materials and the grinding media are separated through the screen, but the screen is often blocked due to the difference of particle sizes of the materials, and the screen is required to be stopped for dredging, so that the grinding efficiency of the materials is affected. In order to solve the problem of screen blockage, a vertical nano sand mill without a screen appears in recent years, as disclosed in Chinese patent No. 215312819U, the vertical nano sand mill with double separation channels comprises a bearing seat, a hollow main shaft is arranged in the bearing seat in a penetrating way, a grinding cylinder is arranged below the hollow main shaft, the hollow main shaft comprises a secondary separation device, the secondary separation device is sheathed with a primary separation device, the primary separation device comprises a dispersion cylinder body and a cavity, the side wall of the dispersion cylinder body is provided with a primary material channel, the upper end of the dispersion cylinder body is provided with a sealing cover, and the separation of grinding media and materials is realized by arranging a two-stage separation device, so that the use of the screen is abandoned. However, because the size of the first-stage material channel in the sand mill is larger, large-particle materials and grinding media can easily enter between the first-stage separation device and the second-stage separation device, and the size of the second-stage material channel in the second-stage separation device is far smaller than that of the first-stage material channel, the discharging speed of the second-stage material channel is far smaller than that of the first-stage material channel, so that the materials and the grinding media are accumulated between the first-stage separation device and the second-stage separation device, the separation effect of the materials and the grinding media is influenced, the discharging speed of the materials after grinding is influenced, and the ball running condition is easily caused. Disclosure of Invention The invention aims to provide a separating wheel mechanism and a vertical sand mill without a screen mesh, which can solve the technical problems that in the prior art, the vertical sand mill without the screen mesh is easy to accumulate, so that the separation effect of materials and grinding media is poor, the discharge rate of the ground materials is poor, and ball running is easy to cause. In order to achieve the above purpose, in one aspect, the invention provides a separation wheel mechanism, which comprises a separation wheel seat, wherein a central position of the top of the separation wheel seat is a discharge area, a plurality of separation convex blocks are uniformly arranged on the top of the separation wheel seat around the discharge area, separation discharge channels communicated with the discharge area are formed between adjacent separation convex blocks, the separation discharge channels are curved, and the separation discharge channels gradually expand from outside to inside. Further, the separation convex blocks comprise a first arc-shaped surface, a second arc-shaped surface and a connection curved surface which are sequentially connected, the first arc-shaped surface and the second arc-shaped surface extend along the direction from the center position to the edge position of the separation wheel seat respectively, the connection curved surface is close to the edge position of the separation wheel seat, the separation discharging channel is formed between the second arc-shaped surface in one separation convex block and the first arc-shaped surface in the next separation convex block along the rotation direction of the separation wheel seat, and the curvature radius of the first arc-shaped surface is larger than or equal to that of the second arc-shaped surface. Further, along the direction of rotation of the separation wheel seat, the connecting curved surface sequentially comprises a small rounding surface, a