A grinding mill for producing alumina micro powder

Abstract

This invention provides a grinding mill for producing alumina micro powder, comprising: a working frame, a hydraulic rod fixedly connected to the upper surface of the working frame, a main motor fixedly connected to the telescopic rod of the hydraulic rod, an upper grinding disc fixedly connected to the output shaft of the main motor, and a protective shell fixedly connected to the bottom of the inner cavity of the working frame via a vertical fixing plate. The protective shell is fixedly connected to the lower end of the outer side of the grinding barrel, and a main sliding groove is formed at the lower end of the outer side of the grinding barrel. The upper bent part of the positioning block is slidably connected to the main sliding groove, and an auxiliary ring is fixedly connected to the lower end of the positioning block. A lower grinding disc is fixedly connected to the inner side of the auxiliary ring, and the upper end of the lower grinding disc is movably connected to the inner cavity of the grinding barrel. A secondary motor is fixedly connected inside the protective shell. This invention, through the cooperation of the secondary motor, rotating ring, positioning block, and auxiliary ring, enables the grinding mill to have a double grinding disc structure, with the upper and lower grinding discs rotating in opposite directions, thereby helping to improve the grinding efficiency of the grinding mill.

Description

Technical Field

[0001] This utility model relates to the field of alumina micro powder production technology, specifically to a grinding mill for alumina micro powder production. Background Technology

[0002] Alumina is a stable oxide of aluminum, sparingly soluble in water, odorless, tasteless, and extremely hard. It is soluble in inorganic acids and alkaline solutions, but almost insoluble in water and non-polar organic solvents. It is commonly used as an analytical reagent, a dehydrator for organic solvents, an adsorbent, an organic reaction catalyst, an abrasive, a polishing agent, a raw material for aluminum smelting, and a refractory material. In the production and use of alumina, it is often ground into powder using a grinding mill. However, in current technology, most common grinding mills have a single grinding disc structure, which means that the grinding efficiency of the mill for alumina needs to be improved. Furthermore, during the grinding process, the already ground alumina powder cannot be discharged in time, causing the alumina powder to interfere with the unground alumina, thereby reducing the grinding effect of the mill and prolonging the grinding time. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a grinding mill for the production of alumina micro powder is provided to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, a grinding mill for producing alumina micro powder is provided, comprising: a working frame, a hydraulic rod fixedly connected to the upper surface of the working frame, a main motor fixedly connected to the telescopic rod of the hydraulic rod, an upper grinding disc fixedly connected to the output shaft of the main motor, a protective shell fixedly connected to the bottom of the inner cavity of the working frame via a vertical fixing plate, the protective shell fixedly connected to the lower end of the outer side of the grinding barrel, a main sliding groove formed at the lower end of the outer side of the grinding barrel, a slidably connected upper bent portion of a positioning block within the main sliding groove, an auxiliary ring fixedly connected to the lower end of the positioning block, a lower grinding disc fixedly connected to the inner side of the auxiliary ring, the upper end of the lower grinding disc movably connected to the inner cavity of the grinding barrel, an auxiliary motor fixedly connected inside the protective shell, a drive wheel on the output shaft of the auxiliary motor meshing with a gear ring, the gear ring fixedly connected to the outer side of a rotating ring, the rotating ring fixedly connected to the upper surface of the positioning block, and a collection disc movably connected to the bottom of the inner cavity of the working frame via a protrusion.

[0005] Preferably, the working frame has a U-shaped structure, and anti-slip pads are symmetrically connected to the lower surface of the working frame. The anti-slip pads have a rectangular structure, and the protrusions at the bottom of the inner cavity of the working frame have a square structure. A fitting groove is opened in the middle of the lower surface of the collection tray relative to the position of the protrusions.

[0006] Preferably, the grinding barrel has a cylindrical structure, and the dimensions of the inner cavity of the grinding barrel are adapted to the dimensions of the upper grinding disc and the lower grinding disc, respectively, and multiple sets of through holes are uniformly opened on the surface of the lower grinding disc.

[0007] Preferably, the protective shell has an overall cylindrical structure, and the axial section of the protective shell has an i-shaped structure. The upper end of the inner side of the protective shell is fixedly connected to the outer side of the grinding barrel, while the lower end of the inner side of the protective shell is attached to the outer side of the auxiliary ring.

[0008] Preferably, the lower surface and both sides of the protective shell are symmetrically connected with two sets of vertical fixing plates and two sets of horizontal fixing plates, and the upper surface of the vertical fixing plate has a fan-shaped annular structure, while the horizontal fixing plate has a long strip structure. At the same time, the two ends of the horizontal fixing plate are fixedly connected to both sides of the inner cavity of the working frame.

[0009] Preferably, the auxiliary ring has a circular ring structure, and multiple sets of positioning blocks are fixedly connected around the edge of the upper surface of the auxiliary ring at equal intervals in the circumferential direction. The multiple sets of positioning blocks are all L-shaped, and the rotating ring fixedly connected to the upper surface of the positioning blocks has a circular ring structure.

[0010] Preferably, the main groove on the outer side of the grinding barrel has a circular structure, and multiple sets of movable grooves are opened at equal intervals around the bottom of the main groove. The mounting ring fixedly connected to the bottom of the main groove has a circular structure, and a spherical through hole is opened on the surface of the mounting ring relative to the position of the movable groove. The ball is movably connected in the movable groove through the through hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of the protective shell, auxiliary motor, rotating ring, positioning block, auxiliary ring and main motor, the grinder has a double grinding disc structure, and the upper grinding disc and the lower grinding disc rotate in opposite directions, which can further enhance the grinding effect of the grinder on alumina and improve the grinding efficiency of the grinder. In addition, through the periodic rotation of the lower grinding disc, during the stop period, the ground alumina micro powder can slide through the through hole on the surface of the lower grinding disc into the collection disc for collection, thereby helping to shorten the grinding time of alumina. Attached Figure Description

[0012] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 This is a top view of an embodiment of the present utility model.

[0014] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0015] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged diagram of point B.

[0016] In the diagram: 1. Hydraulic rod; 2. Working frame; 3. Main motor; 4. Upper grinding disc; 5. Grinding barrel; 6. Horizontal fixing plate; 7. Protective shell; 8. Positioning block; 9. Vertical fixing plate; 10. Collection tray; 11. Auxiliary ring; 12. Lower grinding disc; 13. Rotating ring; 14. Auxiliary motor; 15. Gear ring; 16. Main slide groove; 17. Mounting ring; 18. Ball bearing. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1 to 4 As shown, this utility model provides a grinding machine for producing alumina micro powder, including: a working frame 2, a hydraulic rod 1 fixedly connected to the upper surface of the working frame 2, a main motor 3 fixedly connected to the telescopic rod of the hydraulic rod 1, an upper grinding disc 4 fixedly connected to the output shaft of the main motor 3, a protective shell 7 fixedly connected to the bottom of the inner cavity of the working frame 2 through a vertical fixing plate 9, the protective shell 7 fixedly connected to the lower end of the outer side of the grinding barrel 5, and a main sliding groove 16 opened at the lower end of the outer side of the grinding barrel 5, the upper bent part of the positioning block 8 slidably connected in the main sliding groove 16, the lower end of the positioning block 8 fixedly connected to an auxiliary ring 11, the inner side of the auxiliary ring 11 fixedly connected to a lower grinding disc 12, the upper end of the lower grinding disc 12 movably connected to the inner cavity of the grinding barrel 5, and an auxiliary motor 14 fixedly connected inside the protective shell 7, the output shaft of the auxiliary motor 14 is provided with a drive wheel meshing with a gear ring 15, the gear ring 15 is fixedly connected to the outer side of a rotating ring 13, the rotating ring 13 is fixedly connected to the upper surface of the positioning block 8, and a collection disc 10 is movably connected to the bottom of the inner cavity of the working frame 2 through a protrusion.

[0019] In this embodiment, the pre-treated alumina fragments are poured into the grinding barrel 5. The auxiliary motor 14 is switched on, and the drive wheel of the output shaft of the auxiliary motor 14 drives the rotating ring 13 to rotate through the meshing gear ring 15. Then, the rotating ring 13 drives the lower grinding disc 12 to rotate periodically and synchronously through the fixedly connected positioning block 8 and auxiliary ring 11. The main motor 3 is switched on, and the output shaft of the main motor 3 drives the fixedly connected upper grinding disc 4 to rotate. The upper grinding disc 4 and the lower grinding disc 12 rotate in opposite directions. Then, the hydraulic rod 1 is switched on, and the extension rod of the hydraulic rod 1 pushes the main motor 3 and the upper grinding disc 4 to move synchronously to a suitable position, so that the upper grinding disc 4 and the lower grinding disc 12 can perform corresponding grinding treatment on the alumina fragments in the grinding barrel 5. During the periodic stops of the lower grinding disc 12, the ground alumina powder will slide through the through holes opened on the surface of the lower grinding disc 12 into the collection plate 10 below, thereby improving the grinding efficiency and grinding effect of the grinding machine on alumina and shortening the time required for the production of alumina powder.

[0020] In a preferred embodiment, the working frame 2 has a U-shaped structure, and anti-slip pads are symmetrically connected to the lower surface of the working frame 2. The anti-slip pads have a rectangular structure, and the protrusions at the bottom of the inner cavity of the working frame 2 have a square structure. A fitting groove is opened in the middle of the lower surface of the collection tray 10 relative to the position of the protrusions.

[0021] In this embodiment, as Figure 1 The anti-slip pad helps enhance the stability of the grinder during use, and the protrusions and fitting grooves allow the collection tray 10 to be placed quickly and accurately directly below the grinding barrel 5, improving the collection effect of alumina powder.

[0022] In a preferred embodiment, the grinding barrel 5 has a cylindrical structure, and the dimensions of the inner cavity of the grinding barrel 5 are adapted to the dimensions of the upper grinding disc 4 and the lower grinding disc 12, respectively. Furthermore, multiple sets of through holes are uniformly opened on the surface of the lower grinding disc 12.

[0023] In this embodiment, as Figure 1 and Figure 2 The dimensions of the inner cavity of the grinding barrel 5, the upper grinding disc 4, and the lower grinding disc 12 are designed to allow the three to be relatively independent, thereby ensuring the stability of the upper grinding disc 4 and the lower grinding disc 12 when they rotate. At the same time, the through holes on the surface of the lower grinding disc 12 allow the alumina powder to be discharged smoothly, reducing the degree of interference of the alumina powder on the alumina fragments.

[0024] In a preferred embodiment, the protective shell 7 has an overall cylindrical structure, and the axial section of the protective shell 7 has a U-shaped structure. The upper end of the inner side of the protective shell 7 is fixedly connected to the outer side of the grinding barrel 5, while the lower end of the inner side of the protective shell 7 is attached to the outer side of the auxiliary ring 11.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 The protective shell 7 allows the transmission structure on the outer side of the grinding barrel 5 to operate in a relatively enclosed environment, thereby effectively reducing the probability of accidental failure of the transmission structure due to external debris. Furthermore, the protective shell 7 consists of a main shell and a secondary shell, which can improve the convenience of loading and unloading various parts of the grinding machine. Moreover, the secondary motor 14 fixedly connected inside the protective shell 7 can be a servo motor.

[0026] As a preferred embodiment, two sets of vertical fixing plates 9 and two sets of horizontal fixing plates 6 are symmetrically connected to the lower surface and both sides of the protective shell 7, respectively. The upper surface of the vertical fixing plate 9 has a fan-shaped annular structure, while the horizontal fixing plate 6 has a long strip structure. At the same time, the two ends of the horizontal fixing plate 6 are fixedly connected to both sides of the inner cavity of the working frame 2.

[0027] In this embodiment, as Figure 1 and Figure 2 The vertical fixing plate 9 and the horizontal fixing plate 6 can effectively enhance the stability of the fixed connection between the grinding barrel 5 and the working frame 2, avoid the grinding barrel 5 from rotating unexpectedly or shifting its position, and ensure that the grinding machine can perform normal grinding processing.

[0028] In a preferred embodiment, the auxiliary ring 11 has a circular ring structure, and multiple sets of positioning blocks 8 are fixedly connected around the edge of the upper surface of the auxiliary ring 11 at equal intervals in the circumferential direction. The multiple sets of positioning blocks 8 are all L-shaped structures, and the rotating ring 13 fixedly connected to the upper surface of the positioning blocks 8 has a circular ring structure.

[0029] In this embodiment, as Figure 2 and Figure 3 The positioning block 8 enables the auxiliary ring 11 and the lower grinding disc 12 to rotate stably on the lower surface of the grinding barrel 5, effectively preventing the lower grinding disc 12 from falling off accidentally, and also ensuring that the lower grinding disc 12 and the grinding barrel 5 can rotate relative to each other.

[0030] In a preferred embodiment, the main slide groove 16 on the outer side of the grinding barrel 5 has a circular structure. Multiple sets of movable grooves are opened at equal intervals around the bottom of the main slide groove 16. The mounting ring 17 fixedly connected to the bottom of the main slide groove 16 has a circular structure. A spherical through hole is opened on the surface of the mounting ring 17 relative to the position of the movable groove. The ball bearing 18 is movably connected in the movable groove through the through hole.

[0031] In this embodiment, as Figure 3 and Figure 4The installation ring 17 allows the ball bearing 18 to be easily installed in the movable groove at the bottom of the main slide 16. The ball bearing 18 helps to reduce the frictional resistance and noise when the positioning block 8 and the grinding barrel 5 rotate relative to each other.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An attritor mill for the production of alumina micropowder, comprising: The working frame (2) is characterized in that: a hydraulic rod (1) is fixedly connected to the upper surface of the working frame (2), the telescopic rod of the hydraulic rod (1) is fixedly connected to the main motor (3), the output shaft of the main motor (3) is fixedly connected to the upper grinding disc (4), and the bottom of the inner cavity of the working frame (2) is fixedly connected to the protective shell (7) through the vertical fixing plate (9). The protective shell (7) is fixedly connected to the lower end of the outer side of the grinding barrel (5), and the lower end of the outer side of the grinding barrel (5) is provided with a main slide groove (16). The upper bent part of the positioning block (8) is slidably connected in the main slide groove (16), and the positioning block... (8) The lower end is fixedly connected to the auxiliary ring (11), the inner side of the auxiliary ring (11) is fixedly connected to the lower grinding disc (12), the upper end of the lower grinding disc (12) is movably connected to the inner cavity of the grinding barrel (5), and the auxiliary motor (14) is fixedly connected inside the protective shell (7). The active wheel of the output shaft of the auxiliary motor (14) meshes with the gear ring (15), and the gear ring (15) is fixedly connected to the outer side of the rotating ring (13). The rotating ring (13) is fixedly connected to the upper surface of the positioning block (8), and the bottom of the inner cavity of the working frame (2) is movably connected to the collection plate (10) through the protrusion.

2. The alumina fine powder production grinder according to claim 1, characterized by, The working frame (2) has a square-shaped structure. The lower surface of the working frame (2) is symmetrically connected with anti-slip pads. The anti-slip pads have a rectangular structure. The protrusions at the bottom of the inner cavity of the working frame (2) have a square structure. The middle part of the lower surface of the collection tray (10) is provided with a corresponding fitting groove relative to the position of the protrusions.

3. The alumina fine powder production grinder according to claim 1, characterized by, The grinding barrel (5) has a cylindrical structure, and the size of the inner cavity of the grinding barrel (5) is adapted to the size of the upper grinding disc (4) and the lower grinding disc (12), and multiple sets of through holes are evenly opened on the surface of the lower grinding disc (12).

4. The alumina fine powder production grinder according to claim 1, characterized by The protective shell (7) is cylindrical in shape, and the axial section of the protective shell (7) is U-shaped. The upper end of the inner side of the protective shell (7) is fixedly connected to the outer side of the grinding barrel (5), and the lower end of the inner side of the protective shell (7) is attached to the outer side of the auxiliary ring (11).

5. The alumina fine powder production grinder according to claim 1, wherein The lower surface and both sides of the protective shell (7) are symmetrically connected to two sets of vertical fixing plates (9) and two sets of horizontal fixing plates (6). The upper surface of the vertical fixing plate (9) is a fan-shaped ring structure, while the horizontal fixing plate (6) is a long strip structure. At the same time, the two ends of the horizontal fixing plate (6) are fixedly connected to the two sides of the inner cavity of the working frame (2).

6. The alumina fine powder production grinder according to claim 1, wherein The auxiliary ring (11) has a circular ring structure. Multiple sets of positioning blocks (8) are fixedly connected around the edge of the upper surface of the auxiliary ring (11) at equal intervals in the circumferential direction. The multiple sets of positioning blocks (8) all have an L-shaped structure. The rotating ring (13) fixedly connected to the upper surface of the positioning blocks (8) has a circular ring structure.

7. The alumina fine powder production grinder according to claim 1, characterized by The main slide groove (16) on the outer side of the grinding barrel (5) has a circular structure. Multiple sets of movable grooves are opened at equal intervals around the bottom of the main slide groove (16). The mounting ring (17) fixedly connected to the bottom of the main slide groove (16) has a circular structure. A spherical through hole is opened on the surface of the mounting ring (17) relative to the position of the movable groove. The ball (18) is movably connected in the movable groove through the through hole.

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