Ball milling tank for grinding corrosive materials

Abstract

The utility model relates to the technical field of ball-milling equipment, in particular to a ball-milling tank for grinding corrosive materials, which comprises a metal tank, the metal tank comprises a tank body, a sealing edge is arranged at the top of the tank body, a ball-milling inner container is arranged in the tank body, sealing rings are arranged at the edges of the ball-milling inner container and the sealing edge, and a sealing cover is arranged above the sealing rings. The metal tank and the ball-milling inner container are arranged, the metal tank is used for protecting the ball-milling inner container, the thickness of the ball-milling inner container can be reduced, the cost of the ball-milling inner container can be reduced, different grinding conditions can be adapted by replacing the ball-milling inner container, and meanwhile pollution of metal impurities in the metal tank to materials is avoided; the sealing ring and the sealing cover are arranged, the C-shaped ring is used for clamping the ball-milling inner container and the sealing edge at the same time for preliminary fixing, the limiting column is used for being matched with the clamping groove and the first positioning hole to position the C-shaped ring, the limiting insertion rod is inserted into the second positioning hole and the limiting hole to fix the sealing ring and the metal tank, and displacement of the metal tank and the ball-milling inner container is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball milling equipment, in particular to a ball milling pot for grinding corrosive materials. Background Art

[0002] Ball milling is a grinding method that mainly uses balls as the medium and uses impact, extrusion, friction and other methods to crush materials. The ball milling process is mainly achieved by ball mills, which are divided into several types according to the movement principle of the grinding balls. For laboratories, planetary ball mills are more commonly used. The ball mill jar is a configuration component of the planetary ball mill, which can be used to load grinding balls and samples to achieve sample grinding in a sealed environment.

[0003] At present, ball mills are divided into different categories according to their materials, such as stainless steel, agate, zirconium oxide, and polytetrafluoroethylene. Among them, agate and polytetrafluoroethylene have high corrosion resistance, but agate is brittle and easily damaged. Zirconia has high hardness and good toughness, but its corrosion resistance is slightly lower than that of agate, and its cost is higher. Ball mills made of stainless steel are low in cost and have a wide range of applications. Usually, a layer of zirconium-rich oxide film is plated on the inner wall to improve corrosion resistance, but under high-speed operation, some metal impurities will be mixed into the material. In actual use, different ball mills need to be selected according to different grinding conditions and materials, which increases the cost of use. Utility Model Content

[0004] In order to make up for the shortcomings that a single material ball mill can not meet various grinding requirements and that the cost of equipping multiple grinding mills is relatively high, the utility model provides a ball mill for grinding corrosive materials.

[0005] The technical solution of the utility model is:

[0006] A ball mill for grinding corrosive materials, comprising:

[0007] A metal can, wherein the metal can comprises a can body, a sealing edge is provided on the top of the can body, a ball mill liner is provided in the can body, a sealing ring is provided on the edge of the ball mill liner and the sealing edge, and a sealing cover is provided above the sealing ring;

[0008] The ball mill inner container is used to hold materials and grinding balls;

[0009] The sealing ring comprises two C-shaped rings, the inner sides of the two C-shaped rings are provided with a slot, and the ball mill liner and the sealing edge are inserted into the slot;

[0010] The sealing cover comprises a top cover, a sealing member is arranged under the top cover, and the top cover and the sealing member are used for sealing the ball mill inner container and the sealing ring.

[0011] Preferably, a plurality of wedge-shaped grooves are evenly arranged on the inner side of the tank body, and an inner tank groove is formed between the top of the tank body and the inner side of the sealing edge.

[0012] Preferably, a plurality of limiting holes are evenly arranged on the top surface of the sealing edge, and four limiting columns are evenly arranged on the side surface of the sealing edge.

[0013] Preferably, the ball mill liner comprises an liner, a liner skirt is provided on the top of the liner, the liner skirt is located in the liner groove, a wedge block is provided on the side of the liner, and the wedge block is adapted to the wedge groove.

[0014] Preferably, a first positioning hole is provided in the middle of the side surface of the C-shaped ring, positioning grooves are provided at both ends of the C-shaped ring, and a plurality of second positioning holes are evenly provided on the top surface of the C-shaped ring. The positioning groove and the first positioning hole are adapted to the limiting column, and the second positioning hole is adapted to the limiting hole.

[0015] Preferably, a pressing edge is provided below the top cover, and a plurality of limiting insert rods are provided below the pressing edge, and the limiting insert rods correspond one-to-one to the second positioning holes and the limiting holes.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a metal tank and a ball mill liner, and uses the metal tank to protect the ball mill liner, which can reduce the thickness of the ball mill liner and reduce the cost of the ball mill liner. By replacing the ball mill liner, it can adapt to different grinding conditions and avoid the metal impurities in the metal tank from polluting the material.

[0018] 2. The utility model sets a sealing ring and a sealing cover, uses a C-shaped ring to clamp the ball mill liner and the sealing edge at the same time for preliminary fixation, and uses a limiting column to cooperate with the card slot; 33. The C-shaped ring is positioned with the first positioning hole, and the sealing ring and the metal can are fixed by inserting the limiting rod into the second positioning hole and the limiting hole to avoid displacement of the metal can and the ball mill liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the ball mill inner tank structure in the utility model;

[0022] Figure 4 This is a schematic diagram of the sealing cover structure in the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the second inner liner and the auxiliary positioning sleeve in the utility model.

[0024] The meaning of each number in the figure is:

[0025] 1. Metal can; 11. Can body; 12. Wedge groove; 13. Sealing edge; 14. Inner tank groove; 15. Limiting hole; 16. Limiting column;

[0026] 2. Ball mill liner; 21. liner; 22. liner skirt; 23. wedge block;

[0027] 3. Sealing ring; 31. C-shaped ring; 32. Card slot; 33. First positioning hole; 34. Positioning slot; 35. Second positioning hole;

[0028] 4. Sealing cover; 41. Top cover; 42. Pressing edge; 43. Limiting rod; 44. Mounting groove; 45. Sealing element; 451. Sealing protrusion; 452. Sealing pressing edge;

[0029] 5. Second liner;

[0030] 6. Auxiliary positioning sleeve; 61. Positioning sleeve; 62. Second wedge block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1-5 The utility model describes the above technical solution in detail through the following embodiments:

[0035] A ball mill for grinding corrosive materials, comprising:

[0036] The metal can 1 comprises a can body 11 , a sealing edge 13 is arranged on the top of the can body 11 , a ball mill liner 2 is arranged in the can body 11 , a sealing ring 3 is arranged on the edges of the ball mill liner 2 and the sealing edge 13 , and a sealing cover 4 is arranged above the sealing ring 3 .

[0037] The metal can 1 is formed in one piece by stainless steel. The outer diameter of the sealing ring 3 is larger than the outer diameter of the can body 11, and the inner diameter of the sealing ring 3 is larger than the inner diameter of the can body 11. The metal can 1 is used to protect the ball mill liner 2.

[0038] Six wedge-shaped grooves 12 are evenly arranged on the inner side of the tank body 11 , and an inner tank groove 14 is formed between the top of the tank body 11 and the inner side of the sealing edge 13 .

[0039] The length of the wedge-shaped groove 12 is not less than half the depth of the tank body 11. The depth of the inner tank groove 14 is half the thickness of the sealing edge 13.

[0040] Six limiting holes 15 are evenly arranged on the top surface of the sealing edge 13 , and four limiting columns 16 are evenly arranged on the side surface of the sealing edge 13 .

[0041] The limiting posts 16 are welded to the side surfaces of the sealing edge 13 , and the axes of two adjacent limiting posts 16 are perpendicular.

[0042] The ball mill liner 2 comprises an inner liner 21 , a liner skirt 22 is arranged on the top of the inner liner 21 , the inner liner skirt 22 is located in the inner liner groove 14 , a wedge block 23 is arranged on the side of the inner liner 21 , and the wedge block 23 is adapted to the wedge groove 12 .

[0043] The ball mill liner 2 is used to hold materials and grinding balls. The ball mill liner 2 can be made of one or more materials such as polytetrafluoroethylene, zirconium oxide, polyurethane, corundum, etc. The ball mill liner 2 is integrally formed. The outer diameter of the liner 21 is the same as the inner diameter of the tank body 11. The thickness of the liner skirt 22 is the same as the depth of the liner groove 14.

[0044] During installation, the liner 21 is inserted into the tank body 11 and the wedge blocks 23 are ensured to correspond to the wedge grooves 12 one by one. After the liner 21 is fully inserted, the top surface of the liner skirt 22 should be flush with the top surface of the sealing edge 13.

[0045] The sealing ring 3 includes two C-shaped rings 31 . The inner sides of the two C-shaped rings 31 are provided with a clamping groove 32 . The ball mill liner 2 and the edges of the sealing edge 13 are inserted into the clamping groove 32 .

[0046] The C-shaped ring 31 is made of stainless steel and is integrally formed. The height of the inner side of the slot 32 is the same as the thickness of the sealing edge 13, and the top width of the slot 32 is greater than the bottom width of the slot 32. When the C-shaped ring 31 clamps the sealing edge 13, the inner top surface of the slot 32 abuts against the sealing edge 13 and the top surface of the inner skirt 22, and the inner bottom surface of the slot 32 abuts against the bottom surface of the sealing edge 13.

[0047] A first positioning hole 33 is provided in the middle of the side surface of the C-shaped ring 31, positioning grooves 34 are provided at both ends of the C-shaped ring 31, and a plurality of second positioning holes 35 are evenly provided on the top surface of the C-shaped ring 31. The positioning grooves 34 and the first positioning holes 33 are adapted to the limiting columns 16, and the second positioning holes 35 are adapted to the limiting holes 15.

[0048] The limiting posts 16 on the left and right sides of the sealing edge 13 can be inserted into the first positioning holes 33, and the limiting posts 16 on the front and rear sides of the sealing edge 13 can be inserted into the positioning grooves 34, thereby preventing the C-shaped ring 31 from rotating left and right. The second positioning hole 35 has the same inner diameter as the limiting hole 15 and corresponds to each other.

[0049] The sealing cover 4 comprises a top cover 41 , and a sealing member 45 is provided below the top cover 41 . The top cover 41 and the sealing member 45 are used for sealing the ball mill liner 2 and the sealing ring 3 .

[0050] The top cover 41 is made of stainless steel, and a mounting groove 44 is provided in the middle of the bottom surface of the top cover 41, and the sealing member 45 is nested and installed in the mounting groove 44. The sealing member 45 includes a sealing protrusion 451, and a sealing pressing edge 452 is provided on the edge of the sealing protrusion 451.

[0051] The sealing member 45 is integrally formed of polytetrafluoroethylene. The outer diameter of the sealing protrusion 451 is the same as the inner diameter of the top of the C-shaped ring 31, and the bottom surface of the sealing protrusion 451 abuts against the inner liner skirt 22. The bottom surface of the sealing edge 452 abuts against the top surface of the C-shaped ring 31.

[0052] A pressing edge 42 is provided below the top cover 41 , and a plurality of limiting inserting rods 43 are provided below the pressing edge 42 . The limiting inserting rods 43 correspond to the second positioning holes 35 and the limiting holes 15 one by one.

[0053] There are six limiting rods 43 , which are uniformly welded and installed on the bottom surface of the edge pressing 42 . The outer diameter of the limiting rod 43 is the same as the inner diameter of the second positioning hole 35 .

[0054] When using the device, the operator of this embodiment inserts the inner liner 21 into the tank body 11 and ensures that the wedge block 23 corresponds to the wedge groove 12 one by one. After the inner liner 21 is fully inserted, the top surface of the inner liner skirt 22 should be flush with the top surface of the sealing edge 13.

[0055] Then, two C-shaped rings 31 are used to clamp the sealing edge 13 from both sides, ensuring that the limiting columns 16 on the left and right sides of the sealing edge 13 are inserted into the first positioning holes 33, and the limiting columns 16 on the front and rear sides of the sealing edge 13 are clamped into the positioning grooves 34. The metal can 1 and the ball mill liner 2 are fixed.

[0056] Then, the sealing cover 4 is covered on the top surface of the sealing ring 3, and the limiting rod 43 is ensured to correspond to the second positioning hole 35 one by one and inserted into the second positioning hole 35 and the limiting hole 15. The sealing ring 3 and the sealing edge 13 are fixed, and the ball mill liner 2 and the sealing ring 3 are sealed.

[0057] Using the metal can 1 to protect the ball mill liner 2 can reduce the thickness and material usage of the ball mill liner 2, reduce the production cost of the ball mill liner 2, and further reduce the experimental cost.

[0058] Embodiment 2: The difference from Embodiment 1 is as follows:

[0059] Reference Figure 1 , Figure 2 and Figure 5 , the ball mill inner liner 2 can be replaced with a second inner liner 5.

[0060] An auxiliary positioning sleeve 6 is disposed outside the second inner container 5 . The auxiliary positioning sleeve 6 comprises a positioning sleeve 61 . A second wedge block 62 is disposed on the outer side of the positioning sleeve 61 .

[0061] The second liner 5 is made of a material that is difficult to process, such as agate. The auxiliary positioning sleeve 6 is made of one material, such as polytetrafluoroethylene, polyurethane, etc., and the auxiliary positioning sleeve 6 is integrally formed. The second wedge block 62 is adapted to the wedge groove 12.

[0062] When in use, the second liner 5 is inserted into the positioning sleeve 61, and the positioning sleeve 61 and the second liner 5 are fixed by friction. Then the second liner 5 and the auxiliary positioning sleeve 6 are simultaneously inserted into the tank body 11 to ensure that the second wedge block 62 corresponds to the wedge groove 12 one by one.

[0063] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A ball mill for grinding corrosive materials, characterized in that: include: A metal can (1), the metal can (1) comprising a can body (11), the top of the can body (11) being provided with a sealing edge (13), a ball mill liner (2) being provided in the can body (11), a sealing ring (3) being provided at the edges of the ball mill liner (2) and the sealing edge (13), and a sealing cover (4) being provided above the sealing ring (3); The ball mill inner container (2) is used to contain materials and grinding balls; The sealing ring (3) comprises two C-shaped rings (31), the inner sides of the two C-shaped rings (31) are provided with a clamping groove (32), and the edges of the ball mill liner (2) and the sealing edge (13) are inserted into the clamping groove (32); The sealing cover (4) comprises a top cover (41), a sealing member (45) is provided below the top cover (41), and the top cover (41) and the sealing member (45) are used for sealing the ball mill liner (2) and the sealing ring (3).

2. A ball mill for grinding corrosive materials as claimed in claim 1, characterized in that: A plurality of wedge-shaped grooves (12) are evenly arranged on the inner side of the tank body (11), and an inner tank groove (14) is formed between the top of the tank body (11) and the inner side of the sealing edge (13).

3. A ball mill for grinding corrosive materials as claimed in claim 2, characterized in that: A plurality of limiting holes (15) are evenly arranged on the top surface of the sealing edge (13), and four limiting columns (16) are evenly arranged on the side surface of the sealing edge (13).

4. A ball mill for grinding corrosive materials as claimed in claim 3, characterized in that: The ball mill liner (2) comprises an liner (21), the top of the liner (21) is provided with an liner skirt (22), the liner skirt (22) is located in the liner groove (14), and the side of the liner (21) is provided with a wedge block (23), and the wedge block (23) is adapted to the wedge groove (12).

5. The ball mill for grinding corrosive materials according to claim 3, characterized in that: A first positioning hole (33) is provided in the middle of the side surface of the C-shaped ring (31), positioning grooves (34) are provided at both ends of the C-shaped ring (31), and a plurality of second positioning holes (35) are evenly provided on the top surface of the C-shaped ring (31), the positioning grooves (34) and the first positioning holes (33) are adapted to the limiting columns (16), and the second positioning holes (35) are adapted to the limiting holes (15).

6. A ball mill for grinding corrosive materials as claimed in claim 5, characterized in that: A pressing edge (42) is provided below the top cover (41), and a plurality of limiting insert rods (43) are provided below the pressing edge (42). The limiting insert rods (43) correspond one-to-one to the second positioning holes (35) and the limiting holes (15).

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