Ball mill lining plate and ball mill

Abstract

The utility model provides a ball mill lining plate and a ball mill, the ball mill lining plate comprises a lining plate base layer and at least one pair of transverse metal ceramic groups oppositely arranged on the lining plate base layer, the transverse metal ceramic groups comprise one row or at least two rows of ceramic groups, each ceramic group comprises at least two parallel metal ceramics, and transverse fixing grooves are formed in the bottoms of the metal ceramics; a transverse extending block which extends into the transverse fixing groove and is matched with the transverse fixing groove is arranged on the lining plate base layer; according to the utility model, the metal ceramic is made into a relatively small block body which is embedded into the lining plate of the ball mill, so that the metal ceramic is cast and melted into a whole for use as the lining plate of the ball mill; the wear resistance of the ceramic is 10 times higher than that of the traditional lining plate material; meanwhile, through the lifting strips on the lining plate base layer, the probability that the materials are rolled to a high position can be greatly increased, the impact crushing efficiency is improved, abrasion is small, and the service life is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, specifically to a ball mill liner and a ball mill. Background Technology

[0002] Currently, the mainstream ball mill liners on the market are made of single materials such as high-manganese steel, alloy steel, high-chromium cast iron, and rubber. These materials are simple to process and mold in a single step, resulting in simple production and low cost, but their service life is short, generally only 4 to 6 months.

[0003] One major reason why cermets have not been used in ball mill liners is that they are unsuitable for producing large and thin parts during pressing and sintering. Liners, however, are both large and thin parts, with a length greater than 500mm and a thickness of approximately 80mm. The pressing area is large, requiring significant pressure, which is insufficient for most presses. Furthermore, they are prone to breakage during handling after pressing. During sintering, large and thin parts are susceptible to temperature stress, leading to deformation or cracking. Therefore, ceramic manufacturing processes are unsuitable for producing large and thin parts. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a ball mill liner and a ball mill with a long service life.

[0005] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0006] A ball mill liner includes a liner base layer and at least one pair of transverse metal-ceramic assemblies disposed opposite each other on the liner base layer. The transverse metal-ceramic assemblies include one or at least two rows of ceramic assemblies, each ceramic assembly including at least two parallel metal ceramics. A transverse fixing groove is formed at the bottom of each metal ceramic. The liner base layer has a transverse extension block extending into and matching the transverse fixing groove.

[0007] In one embodiment, the metal ceramic is a trapezoidal strip, and the transverse fixing groove is a C-shaped transverse groove.

[0008] In one embodiment, a transverse steel plate is provided between the two transverse metal ceramic assemblies and the liner base layer.

[0009] In one embodiment, the transverse steel plate has at least two through holes that communicate with the transverse fixing groove.

[0010] In one embodiment, the transverse steel plate has at least two semi-through holes that communicate with the transverse fixing groove.

[0011] In one embodiment, the through-hole in the steel plate is located between adjacent metal ceramics; and the diameter of the through-hole in the steel plate is larger than the spacing between adjacent metal ceramics, so that the transverse fixing groove is connected to the liner base layer through the through-hole in the steel plate.

[0012] In one embodiment, the semi-through hole in the steel plate is located between the end of the transverse end of the metal ceramic and the junction of the liner base layer, and the radius of the semi-through hole in the steel plate is greater than the distance between the end of the transverse end of the metal ceramic and the junction of the liner base layer, so that the transverse fixing groove is connected to the liner base layer through the semi-through hole in the steel plate.

[0013] In one embodiment, a lifting strip extends between the two transverse metal-ceramic assemblies and onto the liner base layer.

[0014] In one embodiment, the liner base layer has at least two mounting holes that penetrate the lifting strip in the middle.

[0015] The technical solution adopted by this utility model to solve another aspect of its technical problem is:

[0016] A ball mill that uses a ball mill liner as described in any of the above embodiments.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model addresses the issue that cermet is unsuitable for integral liners. Instead, it involves creating relatively small blocks of cermet and placing them within the ball mill liner, casting and fusing them into a single unit for use as a ball mill liner. The wear resistance of cermet is more than 10 times higher than that of traditional liner materials. Furthermore, the lifting strips on the liner base significantly increase the probability of material being rolled to a higher position, improving the efficiency of impact crushing. The material's wear resistance ensures efficient friction crushing, and the reduced wear significantly extends the service life. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a top view cross-sectional structural diagram of Embodiment 1 of the present invention;

[0021] Figure 3 This utility model Figure 2 Schematic diagram of the side structure along the AA section;

[0022] Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0023] Figure 5This is a top cross-sectional view of Embodiment 2 of the present invention;

[0024] Figure 6 This utility model Figure 5 A schematic diagram of the side structure cut along section AA.

[0025] In the diagram: 10. Liner base layer, 15. Horizontal extension block, 20. Horizontal metal-ceramic assembly, 21. Ceramic assembly, 25. Metal-ceramic, 30. Lifting strip, 35. Mounting hole, 40. Horizontal fixing groove, 50. Horizontal steel plate, 55. Through hole in steel plate, 56. Semi-through hole in steel plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] like Figure 1-3 As shown, this embodiment includes a liner base layer 10, which is made of high manganese steel.

[0029] At least one pair of transverse metal-ceramic assemblies 20 are arranged opposite to each other on the liner base layer 10; a lifting strip 30 extends between the two transverse metal-ceramic assemblies 20 and on the liner base layer 10; at least two mounting holes 35 are provided on the liner base layer 10 through the lifting strip 30; thereby, by setting the lifting strip 30, the material lifting ratio can be increased and the frequency of material impact crushing can be increased.

[0030] In this embodiment, the ball mill liner is mounted on the ball mill by bolts passing through the mounting hole 35.

[0031] The horizontal metal-ceramic assembly 20 includes one or at least two rows of ceramic assemblies 21, and each ceramic assembly 21 includes at least two parallel metal-ceramic elements 25. In this embodiment, the horizontal metal-ceramic assembly 20 includes two rows of ceramic assemblies 21, and each row of ceramic assemblies 21 includes four parallel metal-ceramic elements.

[0032] In this embodiment, the metal ceramic 25 is a trapezoidal strip, and there are 16 pieces of metal ceramic 25, which are disposed on the substrate 10.

[0033] In one embodiment, the portion of the cermet 25 near the lifting bar 30 extends into the lifting bar 30, such that the upper part of the cermet 25 near the lifting bar 30 is arc-shaped.

[0034] The bottom of the metal ceramic 25 is provided with a transverse fixing groove 40; the base plate 10 has a transverse extension block 15 that extends into the fixing groove 40 and matches the transverse fixing groove 40; in this embodiment, the fixing groove 40 is a C-shaped transverse groove.

[0035] It should be noted that this application involves placing the metal ceramic 25 in a mold and then pouring molten casting steel (high manganese steel material) onto the metal ceramic 25. This allows some of the molten casting steel (high manganese steel material) to enter the fixing groove 40 and form a liner base layer 10 on the metal ceramic 25, while simultaneously forming a lifting strip 30 between the two transverse metal ceramic assemblies 20. This makes the metal ceramic 25, the liner base layer 10, and the lifting strip 30 a whole, preventing them from falling off, while also increasing the clamping force and the interlocking force.

[0036] Therefore, this utility model addresses the issue that cermet is unsuitable for use as an integral liner. Instead, the cermet 25 is made into relatively small blocks and cast into a single unit with molten steel (high manganese steel) for use as a ball mill liner. Since the wear resistance of ceramic is more than 10 times higher than that of traditional liner materials, and the lifting strips 30 on the liner base layer 10 can significantly increase the probability of material being rolled to a higher position, thereby improving the efficiency of impact crushing, the wear resistance of the material ensures the efficiency of friction crushing, and the reduced wear significantly extends the service life.

[0037] Example 2

[0038] like Figure 4-6 As shown, this embodiment includes a liner base layer 10, which is made of polyurethane material.

[0039] At least one pair of transverse metal-ceramic assemblies 20 are disposed opposite each other on the liner base layer 10; in this embodiment, the ball mill liner is mounted on the ball mill by bolts passing through mounting holes 35.

[0040] The horizontal metal-ceramic assembly 20 includes one or at least two rows of ceramic assemblies 21, and each ceramic assembly 21 includes at least two parallel metal-ceramic elements 25. In this embodiment, the horizontal metal-ceramic assembly 20 includes two rows of ceramic assemblies 21, and each row of ceramic assemblies 21 includes four parallel metal-ceramic elements.

[0041] In this embodiment, the metal ceramic 25 is a trapezoidal strip, and there are 16 pieces of metal ceramic 25, which are disposed on the substrate 10.

[0042] In one embodiment, the portion of the cermet 25 near the lifting bar 30 extends into the lifting bar 30, such that the upper part of the cermet 25 near the lifting bar 30 is arc-shaped.

[0043] The bottom of the metal ceramic 25 is provided with a transverse fixing groove 40; the base plate 10 has a transverse extension block 15 that extends into the fixing groove 40 and matches the transverse fixing groove 40; in this embodiment, the fixing groove 40 is a C-shaped transverse groove.

[0044] In one embodiment, the fixing groove 40 is a transverse fixing through hole.

[0045] A transverse steel plate 50 is provided between the two transverse metal-ceramic assemblies 20 and the lining base layer 10.

[0046] The transverse steel plate 50 has at least two through holes 55 and at least two semi-through holes 56 that communicate with the transverse fixing groove 40.

[0047] In this embodiment, the through hole 55 in the steel plate is located between adjacent metal ceramics 25; and the diameter of the through hole 55 in the steel plate is larger than the distance between adjacent metal ceramics 25, so that the transverse fixing groove 40 is connected to the liner base layer 10 through the through hole 55 in the steel plate.

[0048] The steel plate semi-through hole 56 is located between the end of the transverse end of the metal ceramic 25 and the junction of the liner base 10, and the radius of the steel plate semi-through hole 56 is greater than the distance between the end of the transverse end of the metal ceramic 25 and the junction of the liner base 10, so that the transverse fixing groove 40 is connected to the liner base 10 through the steel plate semi-through hole 56.

[0049] In this embodiment, the transverse steel plate 50 and the metal ceramic 20 are laser-welded together.

[0050] In this embodiment, a lifting strip 30 is provided between the two metal ceramic groups 20 and on the transverse steel plate 50, and at least two mounting holes 35 are provided on the liner base layer 10 that penetrate the transverse steel plate 50 and the lifting strip 30. In this embodiment, the size of the transverse steel plate 50 is smaller than the size of the liner base layer 10, so that by setting the lifting strip 30, the material lifting ratio can be increased and the frequency of material impact crushing can be increased.

[0051] In one embodiment, a transverse steel plate 50 is also provided between the lifting strip 30 and the liner base 10. At least two through holes 55 and at least two semi-through holes 56 are provided on the transverse steel plate 50 between the lifting strip 30 and the liner base 10. The semi-through holes 56 are located between the two ends of the transverse steel plate 50 and the liner base 10, and the through holes 55 are located between the two semi-through holes 56.

[0052] In one embodiment, the transverse steel plate 50 between the lifting bar 30 and the liner base 10 and the transverse steel plate 50 between the two transverse metal ceramic groups 20 and the liner base 10 are integral pieces and are disposed on the liner base 10. At the same time, the size of the integral transverse steel plate 50 is smaller than the size of the liner base 10.

[0053] The metal ceramic 25 is placed in the mold, and the transverse steel plate 50 is placed on the metal ceramic 25. The transverse steel plate 50 and the metal ceramic 25 are then laser-welded together. Molten steel (polyurethane material) is then poured onto the metal ceramic 25 and the transverse steel plate 50. Some of the molten steel (polyurethane material) enters the fixing groove 40 through the through hole 55 of the steel plate and flows into the mold along both ends of the fixing groove 40, forming a liner base 10 and a lifting strip 30 between the metal ceramic 25, the transverse steel plate 50, and the two metal ceramic groups 20. This makes the metal ceramic 25, the liner base 10, and the lifting strip 30 a whole, which cannot be detached, thereby increasing the adhesion, interlocking force, and biting force.

[0054] Example 3

[0055] A ball mill is provided, which uses a ball mill liner as described in any of the embodiments of Example 1 and Example 2, and the ball mill liner is installed on the ball mill.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A ball mill liner, characterized in that: The system includes a liner base layer (10) and at least one pair of transverse metal-ceramic assemblies (20) disposed opposite to each other on the liner base layer (10). The transverse metal-ceramic assemblies (20) include one or at least two rows of ceramic assemblies (21). Each ceramic assembly (21) includes at least two parallel metal ceramics (25). The bottom of each metal ceramic (25) is provided with a transverse fixing groove (40). The liner base layer (10) has a transverse extension block (15) that extends into the transverse fixing groove (40) and matches the transverse fixing groove (40).

2. The ball mill liner according to claim 1, characterized in that: The transverse fixing groove (40) is a C-shaped transverse groove.

3. The ball mill liner according to claim 1, characterized in that: A transverse steel plate (50) is provided between the two transverse metal ceramic assemblies (20) and the liner base layer (10).

4. The ball mill liner according to claim 3, characterized in that: The transverse steel plate (50) has at least two through holes (55) that communicate with the transverse fixing groove (40).

5. The ball mill liner according to claim 4, characterized in that: The transverse steel plate (50) has at least two semi-through holes (56) that communicate with the transverse fixing groove (40).

6. The ball mill liner according to claim 5, characterized in that: The through hole (55) in the steel plate is located between adjacent ceramics (25); and the diameter of the through hole (55) in the steel plate is greater than the distance between adjacent metal ceramics (25), so that the transverse fixing groove (40) is connected to the liner base layer (10) through the through hole (55) in the steel plate.

7. The ball mill liner according to claim 6, characterized in that: The steel plate semi-through hole (56) is located between the end of the transverse end of the metal ceramic (25) and the junction of the liner base (10), and the radius of the steel plate semi-through hole (56) is greater than the distance between the end of the transverse end of the metal ceramic (25) and the junction of the liner base (10), so that the transverse fixing groove (40) is connected to the liner base (10) through the steel plate semi-through hole (56).

8. The ball mill liner according to claim 2 or 7, characterized in that: A lifting strip (30) extends between the two transverse metal-ceramic assemblies (20) and on the liner base layer (10).

9. The ball mill liner according to claim 8, characterized in that: The liner base layer (10) has at least two mounting holes (35) that penetrate the lifting strip (30).

10. A ball mill using a ball mill liner as described in any one of claims 1 to 9.

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