Lining plate for autogenous mill or semi-autogenous mill and autogenous mill or semi-autogenous mill

Abstract

The present invention discloses a lining plate for an autogenous mill or a semi-autogenous mill, comprising a bottom plate, a high lifting bar and a low lifting bar. The lower surface of the bottom plate is an arc surface, and the curvature of the arc surface is the same as the curvature of the barrel of the autogenous mill or the semi-autogenous mill; a mounting hole is provided on the bottom plate; the high lifting bar and the low lifting bar are located on opposite sides of the upper surface of the bottom plate, and the length direction of the high lifting bar and the low lifting bar is in the same direction as the axial direction of the lining plate, and a plurality of protrusions are arranged on the inner side surface of the high lifting bar and the inner side surface of the low lifting bar at intervals along the axial direction, and the protrusions are columnar protrusions. The lining plate can realize high-efficiency crushing and impact resistance of a large autogenous mill or a semi-autogenous mill. The present invention also discloses an autogenous mill or a semi-autogenous mill.

Description

Technical Field

[0001] The invention relates to the technical field of autogenous mills or semi-autogenous mills, in particular to a lining plate used on an autogenous mill or a semi-autogenous mill and the autogenous mill or the semi-autogenous mill. Background Art

[0002] In metal ore dressing plants, autogenous mills or semi-autogenous mills are often used to finely crush coarsely crushed ores. In autogenous mills or semi-autogenous mills, materials generally have two forms of movement: throwing and leaking. There are two types of crushing and grinding: impact crushing and grinding and stripping. After the material or grinding medium (steel ball) is thrown up by the liner lifting bar, it hits the material or liner at the toe of the autogenous mill or semi-autogenous mill under the action of gravity, causing the ore to be crushed, and the material or grinding medium that is leaking has a stripping effect on each other, so that the ore is crushed by the stripping effect. In general, the ore crushing method inside the autogenous mill or semi-autogenous mill is mainly impact crushing. Impact crushing causes the liner of the autogenous mill or semi-autogenous mill to be damaged quickly, and its grinding efficiency or operating rate is often the key to restricting the production capacity of a ore dressing plant. With the advancement of equipment manufacturing technology and the development of mineral processing technology, autogenous mills and semi-autogenous mills are moving towards large-scale development. The upper limit of the particle size of the ore entering the mill is gradually increasing, and the size of the grinding medium (steel balls) is also increasing accordingly. This also puts forward higher requirements on the structural strength, wear resistance and grinding efficiency of the linings of large autogenous mills and semi-autogenous mills.

[0003] The lifting strips of the existing liner on the autogenous mill or semi-autogenous mill are generally flat on the side for lifting ore or grinding medium (steel balls). The following main problems exist during use: first, the lifting strips of the liner are easily broken by the impact of large pieces of ore or grinding medium (steel balls), which directly leads to the inability to effectively lift the materials inside the mill, resulting in a decrease in grinding efficiency; second, the lifting strips of the liner wear too quickly, resulting in a short service life of the liner, and the replacement of the liner takes a lot of time, making it difficult to improve the operation rate of the autogenous mill or semi-autogenous mill, which directly affects the entire selection process. Factory economic benefits; finally, the liner structure of the current autogenous mill or semi-autogenous mill is not reasonable enough. Fine-grained ore can easily move from the gap between large ore or large steel balls to the lower position, causing the large ore or large steel balls to be squeezed to the upper position. For large ore or large steel balls, the effective height of the liner's lifting bar is actually reduced, and the direct contact area with the liner's lifting bar is also reduced, making it impossible for the liner's lifting bar to effectively throw up large ore or large steel balls. After being thrown up, the large ore or large steel balls do not have enough kinetic energy to cause ore crushing, thereby reducing the grinding efficiency. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a liner for an autogenous mill or a semi-autogenous mill, which can realize high-efficiency crushing and impact resistance of a large autogenous mill or a semi-autogenous mill.

[0005] A liner for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention comprises:

[0006] A bottom plate, wherein the lower surface of the bottom plate is an arc surface, and the curvature of the arc surface is the same as the curvature of the cylinder of the autogenous mill or the semi-autogenous mill; the bottom plate is provided with a mounting hole;

[0007] A high lifting bar and a low lifting bar, wherein the high lifting bar and the low lifting bar are located on opposite sides of the upper surface of the base plate and the length direction of the high lifting bar and the low lifting bar is in the same direction as the axial direction of the lining plate, and a plurality of protrusions are arranged on the inner side surface of the high lifting bar and the inner side surface of the low lifting bar at intervals along the axial direction, and the protrusions are columnar protrusions.

[0008] The liner used for an autogenous mill or a semi-autogenous mill according to the embodiment of the present invention has the following advantages when applied to the autogenous mill or the semi-autogenous mill: first, the liner has good strength, impact resistance, and is not easy to wear, which reduces the frequency of replacing the liner on the autogenous mill or the semi-autogenous mill, and is beneficial to improving the operating efficiency of the autogenous mill or the semi-autogenous mill; second, large pieces of ore or large steel balls can be effectively lifted by the high lifting bars and the low lifting bars and thrown higher, so that the large pieces of ore or steel balls have greater kinetic energy when falling to the material or the liner, thereby improving the ore crushing efficiency and grinding effect; third, the autogenous mill and the semi-autogenous mill can be large-scaled; fourth, when the liner rotates forward with the autogenous mill or the semi-autogenous mill to lift the ore for grinding and causes wear on one side of the liner, the autogenous mill or the semi-autogenous mill can be made to rotate in the reverse direction and use the other side of the liner to lift the ore for grinding, thereby reducing the frequency of replacing the liner and improving the operating efficiency of the autogenous mill or the semi-autogenous mill.

[0009] In some embodiments, the cross-section of the protrusion is a portion of an ellipse, a portion of a triangle, a portion of a circle, a trapezoid, or a rectangle.

[0010] In some embodiments, the protrusion is arranged perpendicular to the bottom plate.

[0011] In some embodiments, the plurality of protrusions on the high lifting strip and the plurality of protrusions on the low lifting strip are staggered in the axial direction.

[0012] In some embodiments, the upper surface of the bottom plate is a plane, and the inner side surfaces of the high lifting strips and the lower lifting strips are both sloped surfaces.

[0013] Furthermore, the angle between the inner side surface of the high lifting strip and the upper surface of the bottom plate is in the range of 60° to 80°, and the angle between the inner side surface of the low lifting strip and the upper surface of the bottom plate is in the range of 50° to 70°.

[0014] Furthermore, a first reinforcement strip is provided between the inner side surface of the high lifting strip and the upper surface of the bottom plate, and between the inner side surface of the low lifting strip and the upper surface of the bottom plate, respectively.

[0015] Furthermore, the first reinforcement strip includes a first inclined surface, a first horizontal surface and a first concave arc surface which are connected in sequence end to end; the first inclined surface is fixed to the slope surface, the first horizontal surface is fixed to the upper surface of the base plate, and the first concave arc surface faces outward.

[0016] In some embodiments, at least one reinforcing rib is disposed on the inner side of the high lifting bar, and the reinforcing rib is fixed to the side surface of the high lifting bar and the upper surface of the bottom plate.

[0017] Furthermore, a hoisting hole is provided on the reinforcing rib plate, and the thickness of the reinforcing rib plate is greater than the aperture of the hoisting hole.

[0018] Furthermore, the two side surfaces of the reinforcing rib plate are respectively vertical surfaces, and second reinforcement strips are respectively provided between the two side surfaces of the reinforcing rib plate and the bottom plate.

[0019] Furthermore, the second reinforcement strip includes a second vertical surface, a second horizontal surface and a second concave arc surface which are connected in sequence end to end; the second vertical surface is fixed to one side surface of the reinforcing rib plate, the second horizontal surface is fixed to the upper surface of the bottom plate, and the second concave arc surface faces outward.

[0020] In some embodiments, the bottom plate has a thickness of 80 to 90 mm, and the mounting hole has a diameter of 30 to 60 mm.

[0021] In some embodiments, the height of the high lifting bar is 3-5 times the height of the low lifting bar, the height of the high lifting bar is 1.2-4 times the maximum feed particle size, and the height of the high lifting bar is 0.5-1.5 times the width of the bottom plate.

[0022] In some embodiments, the spacing between two adjacent protrusions is 0.5 to 1.2 times the maximum feed particle size, the equivalent diameter of the cylindrical cross-sectional area of ​​the protrusion is 0.2 to 0.8 times the maximum feed particle size, and the protrusion height of the protrusion is 0.25 to 0.6 times the maximum feed particle size.

[0023] The invention also proposes an autogenous mill or a semi-autogenous mill.

[0024] The autogenous mill or semi-autogenous mill according to the present invention comprises a liner as described in any one of the above, wherein there are a plurality of liner plates, and the plurality of liner plates are arranged on the cylinder of the autogenous mill or the semi-autogenous mill.

[0025] In some embodiments, the plurality of liner plates include long liner plates and short liner plates, and the long liner plates and the short liner plates are staggered and arranged in both the axial and circumferential directions; or the plurality of liner plates are identical liner plates, and the identical plurality of liner plates are spliced ​​and arranged in the circumferential direction.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 The present invention is a three-dimensional schematic diagram of a liner plate for an autogenous mill or a semi-autogenous mill at one angle.

[0029] Figure 2 It is a three-dimensional schematic diagram from another angle of a liner plate for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0030] Figure 3 It is a schematic cross-sectional view of a protrusion on a liner plate of an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0031] Figure 4 It is a cross-sectional schematic diagram of a first fixing strip on a liner of an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0032] Figure 5 It is a cross-sectional schematic diagram of a second fixing strip used on a liner of an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0033] Figure 6 The present invention is a schematic diagram of an arrangement of a liner for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0034] Figure 7 The figure is a schematic diagram of another arrangement of a liner plate for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0035] Figure 8 The figure is a schematic diagram of another arrangement of a liner for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] Liner 1000

[0038] Base plate 1 Mounting hole 101

[0039] High lifting bar 2

[0040] Low lift bar 3

[0041] Bump 4

[0042] First reinforcement strip 5 First inclined surface 501 First horizontal surface 502 First concave arc surface 503

[0043] Reinforced rib plate 6 Lifting hole 601

[0044] Second reinforcement strip 7 Second vertical surface 701 Second horizontal surface 702 Second concave arc surface 703 DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] Combine the following Figures 1 to 5 A liner plate 1000 for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention will be described.

[0047] like Figures 1 to 5 As shown, a liner 1000 for an autogenous mill or a semi-autogenous mill according to an embodiment of the present invention comprises a bottom plate 1, a high lifting bar 2 and a low lifting bar 3. The lower surface of the bottom plate 1 is an arc surface, and the curvature of the arc surface is the same as the curvature of the barrel of the autogenous mill or the semi-autogenous mill; a mounting hole 101 is provided on the bottom plate 1; the high lifting bar 2 and the low lifting bar 3 are located on opposite sides of the upper surface of the bottom plate 1, and the length direction of the high lifting bar 2 and the low lifting bar 3 is in the same direction as the axial direction of the liner 1000, and a plurality of protrusions 4 are provided on the inner side surface of the high lifting bar 2 and the inner side surface of the low lifting bar 3 respectively along the axial direction at intervals, and the protrusions 4 are columnar protrusions 4.

[0048] Specifically, the lower surface of the bottom plate 1 is an arc surface, and the curvature of the arc surface is the same as the curvature of the cylinder of the autogenous mill or semi-autogenous mill. Therefore, the lower surface of the bottom plate 1 can be made to fit the inner wall of the cylinder of the autogenous mill or semi-autogenous mill, which is convenient for the installation of the liner 1000. The bottom plate 1 is provided with a plurality of mounting holes 101, and the liner 1000 can be fixed to the cylinder by connecting members such as bolts through the mounting holes 101, and the fixing is convenient and reliable.

[0049] The high lifting strip 2 and the low lifting strip 3 are located on opposite sides of the upper surface of the bottom plate 1, and the length direction of the high lifting strip 2 and the low lifting strip 3 is in the same direction as the axial direction of the liner 1000. Therefore, the cross-section of the liner 1000 is roughly "L" shaped. When multiple L-shaped liners 1000 are spliced ​​and arranged on the inner wall of the cylinder of the autogenous mill or semi-autogenous mill along the circumferential direction of the cylinder, from the overall point of view, multiple high lifting strips 2 and multiple low lifting strips 3 are arranged in a staggered manner in the circumferential direction, which can be used to lift larger ore particle size or larger grinding media (steel balls), which is conducive to realizing the large-scale autogenous mill and semi-autogenous mill. At the same time, the low lifting strip 3 is also conducive to enhancing the strength of the bottom plate 1.

[0050] On the inner side surface of the high lifting bar 2 and the inner side surface of the low lifting bar 3, a plurality of protrusions 4 are arranged at intervals in the axial direction, and the protrusions 4 are columnar protrusions 4. It can be understood that when a plurality of L-shaped liners 1000 are spliced ​​and arranged on the inner wall of the cylinder of the autogenous mill or semi-autogenous mill along the circumferential direction of the cylinder, from the overall point of view, the plurality of high lifting bars 2 and the plurality of low lifting bars 3 are arranged in a staggered manner in the circumferential direction, and the protrusions 4 can effectively prevent large pieces of ore from being thrown directly onto the high lifting bar 2 and the low lifting bar 3, thereby reducing the probability of the high lifting bar 2 and the low lifting bar 3 being worn or damaged; at the same time, the protrusions 4 on the high lifting bar 2 and the protrusions 4 on the low lifting bar 3 increase the surface area of ​​the high lifting bar 2 and the low lifting bar 3 respectively, when the high lifting bar 2 of one of the two circumferentially adjacent liners 1000 in the autogenous mill and the other liner 1000 0 carries ore and steel balls and moves upward, fine-grained ore moves downward through large pieces of ore into the space between adjacent protrusions 4, so that large pieces of ore or large steel balls can directly contact with high lifting bars 2, low lifting bars 3 and protrusions 4, so that large pieces of ore or large steel balls can be effectively lifted by the lifting bars and thrown higher. When large pieces of ore or steel balls fall onto the material or liner 1000, they have greater kinetic energy, thereby improving the ore crushing efficiency. When the thrown large pieces of ore or large steel balls hit the high lifting bars 2 or low lifting bars 3 on the lower part of the cylinder, the contact area between the protrusions 4 and the large pieces of ore is small, and the protrusions 4 can split and crush the large pieces of ore, thereby further improving the crushing rate of the large pieces of ore.

[0051] The liner 1000 for an autogenous mill or a semi-autogenous mill according to the embodiment of the present invention has the following advantages when applied to the autogenous mill or the semi-autogenous mill: first, the liner 1000 has good strength, impact resistance, and is not easy to wear, which reduces the frequency of replacement of the liner 1000 on the autogenous mill or the semi-autogenous mill, which is beneficial to improving the operating efficiency of the autogenous mill or the semi-autogenous mill; second, large pieces of ore or large steel balls can be effectively lifted by the high lifting bar 2 and the low lifting bar 3 and thrown higher, so that large pieces of ore or steel balls fall When the material or liner 1000 reaches the material, it has greater kinetic energy, which improves the ore crushing efficiency and grinding effect; third, it can realize the large-scale autogenous mill and semi-autogenous mill; fourth, when the liner 1000 rotates forward with the autogenous mill or semi-autogenous mill to lift the ore for grinding and causes wear on one side of the liner 1000, the autogenous mill or semi-autogenous mill can be made to rotate in the reverse direction to use the other side of the liner 1000 to lift the ore for grinding, thereby reducing the frequency of replacing the liner 1000 and improving the operating efficiency of the autogenous mill or semi-autogenous mill.

[0052] In some embodiments, the cross-section of the protrusion 44 may be a portion of an ellipse (eg, Figure 3 As shown), a part of a triangle, a part of a circle, a trapezoid or a rectangle, which can be selected according to actual needs.

[0053] In some embodiments, the protrusion 4 is arranged perpendicular to the bottom plate 1. That is to say, the angle between the protrusion 4 on the high lifting bar 2 and the bottom plate 1 is 90°, which is smaller than the angle between the high lifting bar 2 and the bottom plate 1; the angle between the protrusion 4 on the low lifting bar 3 and the bottom plate 1 is 90°, which is smaller than the angle between the low lifting bar 3 and the bottom plate 1; therefore, when the high lifting bar 2 and the low lifting bar 3 throw up large pieces of ore or steel balls, it is easier to increase the height of the thrown up, thereby further improving the lifting effect of the liner 1000 on large pieces of ore and steel balls.

[0054] In some embodiments, the plurality of protrusions 4 on the high lifting strip 2 and the plurality of protrusions 4 on the low lifting strip 3 are staggered in the axial direction (eg Figure 1 and Figure 2 As a result, it is easier to lift large pieces of ore or steel balls.

[0055] In some embodiments, the upper surface of the bottom plate 1 is a plane, and the inner side surfaces of the high lifting strips 2 and the low lifting strips 3 are both sloped surfaces. The high lifting strips 2 and the low lifting strips 3 have good strength and are not easy to break.

[0056] Furthermore, the angle between the inner side of the high lifting strip 2 and the upper surface of the bottom plate 1 is in the range of 60° to 80°, and the angle between the inner side of the low lifting strip 3 and the upper surface of the bottom plate 1 is in the range of 50° to 70°. As a result, the high lifting strip 2 and the low lifting strip 3 have good strength and are not easy to break. In addition, the outer side of the high lifting strip 2 is perpendicular to the bottom plate 1, and the outer side of the low lifting strip 3 is perpendicular to the bottom plate 1, which is convenient for splicing and installation.

[0057] Furthermore, first reinforcement strips 5 are respectively provided between the inner side surface of the high lifting strip 2 and the upper surface of the bottom plate 1, and between the two side surfaces of the low lifting strip 3 and the upper surface of the bottom plate 1, which can effectively prevent the connection between the high lifting strip 2 and the bottom plate 1, and the connection between the low lifting strip 3 and the bottom plate 1 from excessive stress concentration and thus causing breakage.

[0058] Furthermore, the first reinforcing strip 5 includes a first inclined surface 501, a first horizontal surface 502 and a first concave arc surface 503 (as shown in FIG4 ) connected in sequence from beginning to end; the first inclined surface 501 is fixed to the slope surface, the first horizontal surface 502 is fixed to the upper surface of the bottom plate 1, and the first concave arc surface 503 faces outward. Thus, it can effectively prevent the connection between the high lifting strip 2 and the bottom plate 1 and the connection between the low lifting strip 3 and the bottom plate 1 from being excessively concentrated and thus breaking.

[0059] Optionally, the cross-section of the first concave arc surface 503 may be in the shape of a circular arc, a cycloid, an involute or a spiral.

[0060] In some embodiments, at least one reinforcing rib 6 is provided on the inner side of the high lifting bar 2, and the reinforcing rib 6 is fixed on the side of the high lifting bar 2 and the upper surface of the bottom plate 1. It can be understood that the reinforcing rib 6 can enhance the strength of the liner 1000 and effectively prevent the high lifting bar 2 from breaking with the bottom plate 1. The number of reinforcing ribs 6 is determined by the axial length of the liner 1000. The longer the length of the liner 1000, the more reinforcing ribs 6 there are, and the better the strength of the liner 1000 can be enhanced.

[0061] Furthermore, the reinforcing rib plate 6 is provided with a hoisting hole 601, which is convenient for the hoisting construction of the lining plate 1000. The thickness of the reinforcing rib plate 6 is greater than the aperture of the hoisting hole 601, ensuring that the reinforcing rib plate 6 is not easy to be torn when the lining plate 1000 is hoisted.

[0062] Furthermore, the two sides of the reinforcing rib plate 6 are vertical surfaces, which facilitates the large ore or steel ball to be lifted by the high lifting bar 2 and the low lifting bar 3. A second reinforcement bar 7 is provided between the two sides of the reinforcing rib plate 6 and the bottom plate 1. In this way, it can effectively prevent the stress at the connection between the reinforcing rib plate 6 and the bottom plate 1 from being too concentrated and causing fracture.

[0063] Furthermore, the second reinforcement strip 7 includes a second vertical surface 701, a second horizontal surface 702 and a second concave arc surface 703 (such as Figure 5 The second vertical surface 701 is fixed to one side of the reinforcing rib plate 6, the second horizontal surface 702 is fixed to the upper surface of the bottom plate 1, and the second concave arc surface 703 faces outward. Thus, it can effectively prevent the stress at the connection between the reinforcing rib plate 6 and the bottom plate 1 from being too concentrated and causing fracture.

[0064] Optionally, the cross-section of the second concave arc surface 703 may be in the shape of a circular arc, a cycloid, an involute or a spiral.

[0065] In some embodiments, the thickness of the bottom plate 1 is 80-90 mm, and the diameter of the mounting hole 101 is 30-60 mm, thereby ensuring the strength of the bottom plate 1.

[0066] In some embodiments, the height of the high lifting bar 2 is 3-5 times the height of the low lifting bar 3, the height of the high lifting bar 2 is 1.2-4 times the maximum feed particle size, and the height of the high lifting bar 2 is 0.5-1.5 times the width of the bottom plate 1. Therefore, the liner 1000 of this embodiment can be applied to large autogenous mills or large semi-autogenous mills.

[0067] In some embodiments, the spacing between two adjacent protrusions 4 is 0.5 to 1.2 times the maximum feed particle size, the equivalent diameter of the cylindrical cross-sectional area of ​​the protrusion 4 is 0.2 to 0.8 times the maximum feed particle size, and the protrusion height of the protrusion 4 is 0.25 to 0.6 times the maximum feed particle size. Therefore, when a plurality of liner plates 1000 are spliced ​​and arranged on the inner wall of the cylinder of an autogenous mill or a semi-autogenous mill along the circumferential direction of the cylinder, from an overall perspective, a plurality of high lifting bars 2 and a plurality of low lifting bars 3 are arranged in a staggered manner in the circumferential direction, and the protrusions 4 can effectively prevent large pieces of ore from being directly thrown onto the high lifting bars 2 and the low lifting bars 3, thereby reducing the probability of the high lifting bars 2 and the low lifting bars 3 being worn or damaged; at the same time, the protrusions 4 on the high lifting bars 2 and the protrusions 4 on the low lifting bars 3 increase the surface areas of the high lifting bars 2 and the low lifting bars 3, respectively. When the high lifting bar 2 of one liner plate 1000 and the low lifting bar 3 of two circumferentially adjacent liner plates 1000 in an autogenous mill or a semi-autogenous mill are connected to each other, the protrusions 4 on the high lifting bars 2 and the low lifting bars 3 are connected to each other. When the low lifting bar 3 of plate 1000 carries ore and steel balls and moves upward, the fine-grained ore moves downward through the large ore into the space between adjacent protrusions 4, so that the large ore or large steel balls can directly contact the high lifting bar 2, the low lifting bar 3 and the protrusion 4, so that the large ore or large steel balls can be effectively lifted by the lifting bar and thrown higher. When the large ore or steel balls fall onto the material or liner 1000, they have greater kinetic energy, thereby improving the ore crushing efficiency. When the thrown large ore or large steel balls hit the high lifting bar 2 or the low lifting bar 3 on the lower part of the cylinder, the contact area between the protrusion 4 and the large ore is small, and the protrusion 4 can have a splitting and crushing effect on the large ore.

[0068] The present invention also provides an autogenous mill or a semi-autogenous mill.

[0069] The autogenous mill or semi-autogenous mill according to the embodiment of the present invention comprises the liner 1000 of any one of the above embodiments, and there are multiple liner 1000, which are arranged on the cylinder of the autogenous mill or semi-autogenous mill.

[0070] The autogenous mill or semi-autogenous mill according to the embodiment of the present invention has the following advantages: first, the liner 1000 has good strength, impact resistance, and is not easy to wear, which reduces the frequency of replacing the liner 1000 on the autogenous mill or semi-autogenous mill, which is beneficial to improving the operating efficiency of the autogenous mill or semi-autogenous mill; second, large pieces of ore or large steel balls can be effectively lifted by the high lifting bar 2 and the low lifting bar 3 and thrown higher, so that the large pieces of ore or steel balls have greater kinetic energy when falling to the material or the liner 1000, which improves the ore crushing efficiency and grinding effect; third, the autogenous mill and semi-autogenous mill can be large-scaled; fourth, when the liner 1000 rotates forward with the autogenous mill or semi-autogenous mill to lift the ore for grinding, causing one side of the liner 1000 to be worn, the autogenous mill or semi-autogenous mill can be made to rotate in the opposite direction to use the other side of the liner 1000 to lift the ore for grinding, thereby reducing the frequency of replacing the liner 1000 and improving the operating efficiency of the autogenous mill or semi-autogenous mill.

[0071] In some embodiments, the plurality of liner plates 1000 include long liner plates 1000 and short liner plates 1000, and the long liner plates 1000 and the short liner plates 1000 are staggered and arranged in both the axial direction and the circumferential direction. Specifically, there are two staggered and arranged manners of the long liner plates 1000 and the short liner plates 1000, one of which is as follows: Figure 6 As shown, two long lining plates 1000 are back to back with high lifting strips 2 to form a long "mountain" shaped lining plate assembly unit, and two short lining plates 1000 are back to back with high lifting strips 2 to form a short "mountain" shaped lining plate assembly unit, and then the long "mountain" shaped lining plate assembly unit and the short "mountain" shaped lining plate assembly unit are staggered and spliced ​​in the axial and circumferential directions at the same time; another Figure 7 As shown, the long liner 1000 and the short liner 1000 are directly arranged as a unit in an axial and circumferential direction, wherein in the axial direction, the high lifting bars 2 of the adjacent long liner 1000 and the short liner 1000 are located on the same straight line and the low lifting bars 3 are located on another same straight line, and at the same time, in the circumferential direction, the adjacent long liner 1000 and the short liner 1000 are back to back with the high lifting bars 2. Both of these arrangements can make it difficult for the long liner 1000 and the short liner 1000 to move relative to each other, and it is easier to clamp each other.

[0072] In some embodiments, the plurality of liner plates 1000 are identical liner plates 1000, and the identical plurality of liner plates 1000 are spliced ​​and arranged in a circumferential direction (e.g. Figure 8 This arrangement is relatively simple.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lining plate for an autogenous mill or a semi-autogenous mill, characterized in that: include: A bottom plate, wherein the lower surface of the bottom plate is an arc surface, and the curvature of the arc surface is the same as the curvature of the cylinder of the autogenous mill or the semi-autogenous mill; the bottom plate is provided with a mounting hole; A high lifting bar and a low lifting bar, the high lifting bar and the low lifting bar are located on opposite sides of the upper surface of the bottom plate, and the length direction of the high lifting bar and the low lifting bar is in the same direction as the axial direction of the lining plate, and a plurality of protrusions are arranged on the inner side surface of the high lifting bar and the inner side surface of the low lifting bar at intervals along the axial direction, and the protrusions are columnar protrusions; the plurality of protrusions on the high lifting bar and the plurality of protrusions on the low lifting bar are staggered in the axial direction; The upper surface of the base plate is a plane, and the inner side surfaces of the high lifting strip and the low lifting strip are both sloped surfaces; a first reinforcement strip is provided between the inner side surface of the high lifting strip and the upper surface of the base plate, and between the inner side surface of the low lifting strip and the upper surface of the base plate, respectively, and the first reinforcement strip includes a first inclined surface, a first horizontal surface and a first concave arc surface connected in sequence end to end; the first inclined surface is fixed to the sloped surface, the first horizontal surface is fixed to the upper surface of the base plate, and the first concave arc surface faces outward.

2. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: The cross section of the protrusion is a part of an ellipse, a part of a triangle, a part of a circle or a rectangle.

3. The liner for an autogenous mill or a semi-autogenous mill according to claim 2, characterized in that: The protrusion is arranged perpendicular to the bottom plate.

4. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: The angle between the inner side surface of the high lifting strip and the upper surface of the bottom plate is in the range of 60° to 80°, and the angle between the inner side surface of the low lifting strip and the upper surface of the bottom plate is in the range of 50° to 70°.

5. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: At least one reinforcing rib is disposed on the inner side of the high lifting bar, and the reinforcing rib is fixed on the side surface of the high lifting bar and the upper surface of the bottom plate.

6. The liner for an autogenous mill or a semi-autogenous mill according to claim 5, characterized in that: The reinforcing rib plate is provided with a hoisting hole, and the thickness of the reinforcing rib plate is greater than the aperture of the hoisting hole.

7. The liner for an autogenous mill or a semi-autogenous mill according to claim 6, characterized in that: The two side surfaces of the reinforcing rib plate are respectively vertical surfaces, and second reinforcement strips are respectively arranged between the two side surfaces of the reinforcing rib plate and the bottom plate.

8. The liner for an autogenous mill or a semi-autogenous mill according to claim 7, characterized in that: The second reinforcement strip includes a second vertical surface, a second horizontal surface and a second concave arc surface which are connected end to end in sequence; the second vertical surface is fixed to one side surface of the reinforcing rib plate, the second horizontal surface is fixed to the upper surface of the bottom plate, and the second concave arc surface faces outward.

9. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: The thickness of the bottom plate is 80-90 mm, and the diameter of the mounting hole is 30-60 mm.

10. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: The height of the high lifting bar is 3-5 times the height of the low lifting bar, the height of the high lifting bar is 1.2-4 times the maximum feed particle size, and the height of the high lifting bar is 0.5-1.5 times the width of the bottom plate.

11. The liner for an autogenous mill or a semi-autogenous mill according to claim 1, characterized in that: The spacing between two adjacent protrusions is 0.5 to 1.2 times the maximum feed particle size, the equivalent diameter of the cylindrical cross-sectional area of ​​the protrusion is 0.2 to 0.8 times the maximum feed particle size, and the protrusion height of the protrusion is 0.25 to 0.6 times the maximum feed particle size.

12. An autogenous mill or a semi-autogenous mill, characterized in that: It comprises the lining plate according to any one of claims 1 to 11, wherein there are a plurality of lining plates, and the plurality of lining plates are arranged on the cylinder of the autogenous mill or the semi-autogenous mill.

13. The autogenous mill or semi-autogenous mill according to claim 12, characterized in that The plurality of lining plates include long lining plates and short lining plates, and the long lining plates and the short lining plates are staggered and arranged in both the axial and circumferential directions; or the plurality of lining plates are identical lining plates, and the identical plurality of lining plates are spliced ​​and arranged in the circumferential direction.

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