CN111889195A - L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder - Google Patents
L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder Download PDFInfo
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- CN111889195A CN111889195A CN202010765848.9A CN202010765848A CN111889195A CN 111889195 A CN111889195 A CN 111889195A CN 202010765848 A CN202010765848 A CN 202010765848A CN 111889195 A CN111889195 A CN 111889195A
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- 238000009434 installation Methods 0.000 claims description 12
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- 239000011241 protective layer Substances 0.000 claims description 7
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- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 229910000617 Mangalloy Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/22—Lining for containers
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- Crushing And Grinding (AREA)
Abstract
The invention discloses an L-shaped split type wear-resistant lining plate of a semi-automatic mill and an inner cylinder body of the mill, wherein the L-shaped split type wear-resistant lining plate of the semi-automatic mill comprises a lifting lining plate and a crushing lining plate, the upper part of the lifting lining plate is a lifting part, and the lower part of the lifting lining plate is a first mounting part; the upper part of the crushing lining plate is a crushing part, the lower part of the crushing lining plate is a second mounting part, the height of the crushing lining plate is smaller than that of the lifting lining plate, and the width of the crushing lining plate is not smaller than that of the lifting lining plate; 20-90 split type L type wear-resisting welts are spliced to form a mill inner cylinder body. According to the invention, the wear-resistant lining plate is provided with the lifting lining plate and the crushing lining plate, and the defect that the existing lining plate has high strength, wear resistance and impact resistance is overcome by adopting a split optimization structure. The use of the cylinder can reduce the times of replacing the lining plate and improve the operation rate of equipment.
Description
Technical Field
The invention belongs to the field of mill equipment, and relates to a wear-resistant lining plate for a semi-autogenous mill or an autogenous mill, and a mill inner cylinder body using the wear-resistant lining plate.
Background
The autogenous mill is a new ore grinding equipment with two functions of crushing and grinding. The material to be ground is used as a medium, and the material to be ground is crushed through mutual impact and grinding. In the semi-autogenous mill, a small amount of steel balls are added into the autogenous mill, so that the processing capacity can be improved by 10-30%, but the abrasion of a lining plate is relatively increased by 15%, and the fineness of a product is also thickened. The diameter of the existing autogenous mill and semi-autogenous mill is 5m to 15m at most, and the lining plate is an expendable part in the mill.
The semi-autogenous mill and the autogenous mill have dozens of models, the diameter is 5-15 meters, the length is 2-10 meters, and 20-90 lining plates are divided into a 360-degree annular mill cylinder body in the diameter cylinder body of each model. The shapes of the semi-autogenous mill and autogenous mill cylinder liners are basically classified into rectangular liners, trapezoidal liners, wave liners and L liners.
Rectangular liner plate: the opening of the semi-closed area between the two rectangular lining plates is small, and internal particles can be effectively wrapped. The effect of lifting the ores and the steel balls in the operation process is not ideal.
Trapezoidal welt: the notch between two trapezoidal welts is open, and the inslot space is bigger than the rectangle space, can hold more granule. The effect of lifting the ores and the steel balls in the operation process is general.
Wave shape welt: between two wave shape welts, the notch is more open, and the inslot space is less relatively, and the welt is level and smooth undulant, and it is lower to promote ore and steel ball in the operation process.
L-shaped lining plate: between two L type shape welts, the notch is more open, and the space is great relatively in the groove, promotes the top strip and weak early wear in one side, promotes ore and steel ball in the operation process, and the crushing face soft material is easily pounded the deformation, and the crackle is easily pounded to hard material.
During the operation of the mill, the high-angle impact of the ore and the steel ball strikes the lining plate to achieve the purpose of crushing, the high-angle impact of the lining plate made of hard materials is mainly caused by crack stripping failure, and the low-angle impact of the lining plate made of soft materials is mainly caused by scratch and cutting failure.
During the lifting process of the steel balls and the ores, the lifting part of the lining plate is mainly scratched and cut. The falling process gives priority to high angle impact on the bottom of the liner. The larger the diameter of the semi-autogenous mill is, the higher the impact and the scratch cutting wear are born by the lining plate. The addition of high impact forces to the residual stress of a hard liner results in a liner that is more susceptible to cracking as the hardness of the liner increases. The problem of impact stress and pressure is alleviated for softer metal materials but deformation and extension tend to shear off the mounting screws and barrel deformation.
(1) The manganese steel series casting lining plate has the service life of about 4 months, mainly takes scratch cutting wear failure as a main part, leads to the deformation of a semi-autogenous mill cylinder body due to the good ductility of the manganese steel series lining plate, and is seriously deformed after the thickness of the rear part is reduced, so that the mounting screw is easy to cut off.
(2) By adopting the alloy steel lining plate, the hardness HRC 20-55 is soft, mainly scratches and cutting wear failure are used as main materials, and the hardness more than HRC35 is mainly fracture failure.
(3) Cast iron mainly has hardness more than HRC45, and has relatively poor toughness, so that the fracture failure is mainly used in the service under the environment of semi-autogenous grinding and high impact.
However, the inventors have found that such techniques have at least one of the following technical problems during long-term use:
1. the lining plates are roughly classified into materials, the manganese steel series has the hardness of HRC30 or less, the toughness is high, the scratch and the abrasion are not resistant, the alloy steel series has the hardness of HRC 30-55, the scratch and the fracture are not resistant, the hardness is high, and the fracture is easy. The cast iron series has poor hardness HRC 45-65 toughness. The service life of the materials selected for the lining plate of the mill is about 4 months, and the service life is difficult to be prolonged.
2. In the existing mill cylinder, the wear rules of all lining plates used are completely the same, one lining plate needs to improve the scratch of ore and resist the high impact wear of the ore, the lining plate material needs to have high strength and high toughness, and the breaking rate of the ore needs to be further improved.
Disclosure of Invention
In view of this, the present invention aims to provide a split-type structure lining plate which is beneficial to prolonging the service life of the mill lining plate.
Another object of the present invention is to provide an inner cylinder of a mill with a higher ore crushing rate, which can reduce the number of lining plate replacement and improve the operation rate of equipment.
The invention provides a split type L-shaped wear-resistant lining plate of a semi-autogenous mill, which comprises a lifting lining plate and a crushing lining plate, wherein the upper part of the lifting lining plate is a lifting part, and the lower part of the lifting lining plate is a first mounting part; broken welt upper portion is crushing portion, and broken welt lower part is the second installation department, broken welt height is less than promote the height of welt, broken welt width is not less than the width that promotes the welt.
Preferably, the lifting portion is trapezoidal, triangular, rectangular, chevron-shaped or semi-circular in cross-section; promote the welt and include first installation face, first concatenation face, first promotion face, promote top surface, second and promote the face and the second concatenation face is connected in order and is enclosed the welt entity that constitutes, first installation face, first concatenation face and second concatenation face are located first installation department, first promotion face, promotion top surface and second promote the face and are located the promotion portion, first promotion face is plane or curved surface, the second promotes the face and is plane or curved surface.
Preferably, the geometric space included angle between the first lifting surface and the second lifting surface is 30-90 degrees; the width of the first mounting surface is 100-800 mm.
Preferably, the lifting top surface is a plane, or a surface formed by two planes with acute included angles or obtuse included angles, or a curved surface; the lead of the curved surface is a line segment obtained from a circle, an ellipse, a parabola or a wavy line; the width of the lifting top surface is 1-200 mm.
Preferably, the crushing part is made of metal material or organic material below HRC 45.
Preferably, the crushing part is made of a metal material or a rubber material with the hardness of HRC 25-35.
Preferably, the upper surface of the crushing part is a crushing surface which is a plane, a curved surface or a grid-shaped concave-convex surface; the generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line.
Preferably, the lifting lining plate is made of metal materials or inorganic materials in HRC 35-80; the lifting top surface can be further provided with an organic material as a protective layer.
Preferably, the fragmentation liner width is equal to the width of the lifting liner.
The invention also provides a mill inner cylinder body based on any one of the split type L-shaped wear-resistant lining plates of the semi-automatic mill, and the mill inner cylinder body is formed by splicing 20-90 split type L-shaped wear-resistant lining plates.
According to one embodiment of the mill shell according to the invention, the lifting liner is responsible for lifting the ore and the steel balls, and the crushing surface is responsible for crushing the ore.
Compared with the prior art, one of the technical solutions has the following advantages:
a) according to the invention, the wear-resistant lining plate is provided with the lifting lining plate and the crushing lining plate, and the defect that the existing lining plate has high strength, wear resistance and impact resistance is overcome by adopting a split optimization structure.
b) In one embodiment of the invention, the lifting liner plate has relatively stable high strength when impacted, and the crushing liner plate has small hardness and impact resistance. The overall life of the liner plate is longer.
c) Lifting lining plate in one embodiment of the wear-resistant lining plate, the crushing lining plate is only responsible for bearing high impact and crushing of ores, when in crushing, ores and steel balls fall onto the crushing lining plate, the crushing lining plate is made of a material with the hardness smaller than HRC35, the falling steel balls and ores directly impact a crushing surface lining plate with the lower hardness, the surface of the lining plate is easy to plastically deform to weaken the high impact force concentration force to cause cracks of the crushing lining plate, on one hand, a certain protection effect is realized on the lining plate, and on the other hand, the crushing rate of the ores is improved.
d) In some embodiments of the wear-resistant lining plate, the crushing surface of the crushing lining plate is arc-shaped, zigzag-shaped or wavy, so that the crushing efficiency is improved, and the wear resistance and impact resistance of the crushing lining plate are improved.
e) In the cylinder body of the grinder, the lifting lining plate is used for lifting ores, the protective layer is arranged, the hardness of the lifting lining plate is improved, and the scratch resistance and the cutting wear resistance are correspondingly improved. Broken welt is responsible for bearing the ore breakage of high impact force, improves the appropriate reduction welt intensity of plasticity, reduces the impact injury of high impact force to the welt, also is favorable to improving the life of welt when improving impact resistance, promotes welt and wear-resisting welt and uses of mutually supporting, increases the breakage rate promptly, improves the wearability of welt again. The integral crushing efficiency of the mill cylinder and the service life of the wear-resistant lining plate are longer.
f) In some embodiments of the split wear-resistant lining plate, the lifting surface only avoids impact stress concentration when improving the strength, the crushing plate only considers the problems of high impact crack resistance and large deformation, and the split lining plate is made of a wider range of selected materials.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic cross-sectional view of a split wear-resistant lining plate according to a preferred embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of another preferred embodiment of the split wear-resistant lining plate of the present invention.
Fig. 3 is a cross-sectional structural view of another preferred embodiment of the split wear-resistant lining plate of the invention.
Fig. 4 is a cross-sectional structural view of another preferred embodiment of the split wear-resistant lining plate of the invention.
Fig. 5 is a cross-sectional structural view of another preferred embodiment of the split wear-resistant lining plate of the invention.
FIG. 6 is a schematic cross-sectional view of a preferred embodiment of the mill cylinder of the present invention.
The labels in the figure are respectively:
1, a cylinder body in a grinding machine,
100 of the lifting of the lining board,
101 a first mounting surface of the first mounting surface,
102 to lift the top surface of the container,
103 of the first lifting surface,
104 of the second lifting surface is arranged to,
105 a protective layer is applied to the substrate,
106 of the first side of the first splice face,
107 on the second splicing face of the first splicing face,
200 the lining board is crushed to be broken,
201 the surface of the crushed material is crushed,
202 on the second mounting surface of the base plate,
203, crushing the plate, namely crushing the plate,
204 of the first and second connector surfaces are provided,
205 of the fourth splicing face, 205,
300 crushing area.
Detailed Description
The following description is made with reference to the accompanying drawings and a specific embodiment.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
Example 1
See fig. 1-5. Fig. 1-5 are cross-sectional schematic views of split wear-resistant lining plates with different shapes.
The split type wear-resistant lining plate comprises a lifting lining plate 100 and a crushing lining plate 200 which can be spliced into a cylindrical structure, wherein the lifting lining plate 100 is columnar, and the section of the lifting lining plate is trapezoidal, and can be triangular, rectangular or triangular-like. "triangle-like" as defined in this application means that the figure has a shape close to a triangle, which does not belong strictly to geometrically defined triangles; rounding or passivating one or more corners of the triangle-like shape, and one or more sides of the figure are not completely straight lines, but have an obtuse angle close to a straight angle; generally, such a triangle has three main sides, and two adjacent sides are directly or indirectly intersected and are connected by an arc or a line segment under the condition that the two adjacent sides are not directly intersected, so that the triangle is suitable for industrial application, in particular to installation and use of a wear-resistant lining plate in mill equipment.
Referring to fig. 1 to 5, the height of the crushing liner 200 is less than the height of the lifting liner 100. The height of the lifting lining plate 100 is 200-500 mm, and the height of the crushing lining plate 200 is 100-350 mm. For example, the height of the lifting liner 100 is selected to be 500mm, and the height of the crushing liner 200 is selected to be 100 mm. The width of the crushing liner 200 is not less than the width of the lifting liner 100. Preferably, the width of the crushing liner 200 is equal to the width of the lifting liner 100.
In this embodiment, the lifting liner plate has a lifting portion at an upper portion thereof and a first mounting portion at a lower portion thereof. The first installation part is used for installing the lifting lining plate on the outer barrel of the mill and splicing with the crushing lining plate.
The cross section of the first mounting part is rectangular, and the cross section of the lifting part is trapezoidal, triangular, rectangular, herringbone or semicircular. The cross-section of the first mounting portion of the riser sock 100 shown in figure 1 is rectangular and the cross-section of the riser portion is trapezoidal. The cross-section of the lifting portion shown in figure 5 is herringbone.
The lifting lining plate is a lining plate entity formed by sequentially connecting and enclosing a first mounting surface 101, a first splicing surface 106, a first lifting surface 103, a lifting top surface 102, a second lifting surface 104 and a second splicing surface 107. The first mounting surface 101, the first splicing surface 106 and the second splicing surface 107 are located at the first mounting portion, and the first lifting surface 103, the lifting top surface 102 and the second lifting surface 104 are located at the lifting portion. The width of the raised top surface 102 is 1-200 mm.
When the first lifting surface 103 and the second lifting surface 104 are planes, the smaller the width of the lifting top surface 102 is, the closer the cross-sectional profile of the lifting part is to a triangle, the larger the width of the lifting top surface 102 is, and the more obvious the trapezoidal characteristic of the cross-sectional profile of the lifting lining plate 100 is; the width of the lifting top surface 102 is maximally equal to the width of the first mounting surface 101, and when the width of the lifting top surface 102 is maximally equal to the width of the first mounting surface 101, the lifting lining plate is rectangular. The lifting top surface 102 is located opposite the first mounting surface 101 between the first lifting surface 103 and the second lifting surface 104. The geometric spatial included angle J1 between the first lifting surface and the second lifting surface is any angle between 30 degrees and 80 degrees, such as 40 degrees, 45 degrees, 50 degrees, 60 degrees and 70 degrees. The lifting liner plate 100 is mainly used for lifting ore materials, and the material of the lifting liner plate is selected from metal materials or inorganic materials in HRC 35-80. Preferably, the hardness of the metal material selected for the lifting liner plate 100 is HRC 40-55. Alternatively, as another embodiment, a protective layer 105 is installed on the lifting top surface 102, and the protective layer 105 is made of a metal material or an inorganic material in the HRC35-80, or made of a rubber material. It is specifically noted that the present invention does not modify the material itself, but merely makes a selection in the prior art. Lifting the liner 100 may reduce high impact wear of the steel balls and ore to the liner. The lifting lining plate is made of wear-resistant alloy materials with higher hardness.
The top surface of the raised top surface 102 or the top surface of the protection layer 105 is a plane, or a plane formed by two planes with an acute angle or an obtuse angle, or a curved surface; the curved line is a line segment obtained from a circle, an ellipse, a parabola or a wavy line. Fig. 1 shows a case where the raised top surface 102 is a plane and the top surface of the protective layer 105 is a triangular side surface, and fig. 2 shows a case where the raised top surface is a curved surface of a circular arc shape from fig. 4.
The curved surface is a track formed by continuous motion of a straight line in space, a moving line forming the curved surface is called a bus, and a line used for controlling the motion of the bus is called a lead. In this embodiment, the bus bar is a straight line perpendicular to the wire.
The upper part of the crushing lining plate 200 is a crushing part, and the lower part of the crushing lining plate is a second installation part. The second installation part is used for installing the crushing lining plate on the outer barrel of the mill and splicing with the lifting lining plate. Referring to fig. 1, the second splicing surface 107 is attached to the third splicing surface 204.
In this embodiment, the crushing liner 200 is a plate member, and includes a second mounting surface 202, a third splicing surface 204, a crushing surface 201, and a fourth splicing surface 205, wherein the crushing surface 201 is opposite to the second mounting surface 202. The second mounting surface 202, the third splicing surface 204 and the fourth splicing surface 205 are located at the second mounting portion, and the crushing surface 201 is located at the crushing portion. The crushing part and the second mounting part can be an integral body or two independent parts. That is, the second mounting portion serves as a base plate of the crushing lining plate, and the crushing portion serves as a crushing plate of the crushing lining plate.
The second mounting surface 202 and the first mounting surface 101 can be assembled on the same circumference to form an inner cylinder of the mill. The crushing surface 201 is a plane, a curved surface or a latticed concave-convex surface. The generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line. In fig. 1, the crushing surface 201 is a two-plane, pointed crushing surface, fig. 2 is an arc-shaped crushing surface, fig. 3 is a sawtooth line crushing surface, and fig. 4 is a wave-shaped crushing surface. In order to improve the impact wear resistance of the crushing surface, the crushing surface 201 is provided as a flexible surface.
Referring to fig. 1, the crushing liner 200 includes a second mounting portion, i.e., a base plate, including a second mounting surface 202, and a crushing portion, i.e., a crushing plate 203, the crushing plate 203 being disposed opposite the second mounting surface 202. The crushing plate 203 is made of metal materials below HRC35, in particular HRC 25-35; or made of organic materials. Preferably, the organic material is rubber. The impact wear resistance of the crushing lining plate can be improved by arranging a layer of rubber material. And when the cylinder body of the mill is maintained, the damaged rubber layer can be replaced in time, so that the equipment maintenance cost is greatly improved, and the maintenance efficiency is improved.
In order to improve the impact resistance of the lining board, a plurality of curved grooves or ridges are provided on the first mounting surface 101, and a plurality of curved grooves or ridges are provided on the second mounting surface 202.
The split type wear-resistant lining plate has stronger anti-impact wear performance by improving the hardness of the lining plate; the broken lining plate reduces the material strength and has stronger abrasion resistance. The split liner plate can reduce the problem of liner plate fracture caused by impact stress concentration.
Example 2
In the embodiment, the wear-resistant lining plates in the embodiment 1 are assembled to obtain the semi-mill inner cylinder body. 20-90 split type wear-resisting welts are spliced to form a mill cylinder body.
See fig. 5. In the mill inner cylinder body 1, split type mill lining plates are spliced according to the clockwise or anticlockwise direction to form a cylinder body whole. The semi-automatic mill inner cylinder body assembled by the split L-shaped wear-resistant lining plates has longer service life, convenient maintenance and higher equipment utilization rate
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (10)
1. A split type L-shaped wear-resistant lining plate of a semi-autogenous mill is characterized by comprising a lifting lining plate and a crushing lining plate, wherein the upper part of the lifting lining plate is a lifting part, and the lower part of the lifting lining plate is a first mounting part; broken welt upper portion is crushing portion, and broken welt lower part is the second installation department, broken welt height is less than promote the height of welt, broken welt width is not less than the width that promotes the welt.
2. The split L-shaped wear liner of semi-autogenous mill of claim 1, wherein the lifting portion is trapezoidal, triangular, rectangular, chevron-shaped, or semi-circular in cross-section; promote the welt and include first installation face, first concatenation face, first promotion face, promote top surface, second and promote the face and the second concatenation face is connected in order and is enclosed the welt entity that constitutes, first installation face, first concatenation face and second concatenation face are located first installation department, first promotion face, promotion top surface and second promote the face and are located the promotion portion, first promotion face is plane or curved surface, the second promotes the face and is plane or curved surface.
3. The split type L-shaped wear-resistant lining plate of the semi-autogenous mill of claim 2, wherein the geometric space included angle between the first lifting surface and the second lifting surface is 30-90 degrees; the width of the first mounting surface is 100-800 mm.
4. The split type L-shaped wear-resistant lining plate of the semi-autogenous mill according to claim 1, wherein the lifting top surface is a plane, or a surface formed by two planes with an acute angle or an obtuse angle, or a curved surface; the lead of the curved surface is a line segment obtained from a circle, an ellipse, a parabola or a wavy line; the width of the lifting top surface is 1-200 mm.
5. The split L-shaped wear-resistant lining plate of the semi-autogenous mill as claimed in claim 1, wherein the crushing part is made of metal material or organic material below HRC 35.
6. The split L-shaped wear-resistant lining plate of the semi-autogenous mill as claimed in claim 5, wherein the crushing part is made of a metal material or a rubber material with a hardness of HRC45 or less.
7. The split type L-shaped wear-resistant lining plate of the semi-autogenous mill as claimed in claim 1, wherein the upper surface of the crushing part is a crushing surface, and the crushing surface is a plane, a curved surface or a grid-shaped concave-convex surface; the generating line of the curved surface is a straight line or an arc line, and the conducting wire of the curved surface is a sawtooth line, a wavy line or an arc line.
8. The split L-shaped wear-resistant liner plate of the semi-autogenous mill of claim 1, wherein the lifting liner plate is made of a metal material or an inorganic material in HRC 35-80; the lifting top surface can also be provided with an organic material as a protective layer.
9. The split L-shaped wear liner of claim 1, wherein the crushing liner width is equal to the width of the lifting liner.
10. The mill inner cylinder body based on the split type L-shaped wear-resistant lining plate of the semi-automatic mill as claimed in any one of claims 1 to 9 is characterized in that 20 to 90 split type L-shaped wear-resistant lining plates are spliced to form the mill inner cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765848.9A CN111889195A (en) | 2020-08-03 | 2020-08-03 | L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010765848.9A CN111889195A (en) | 2020-08-03 | 2020-08-03 | L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder |
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| Publication Number | Publication Date |
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| CN111889195A true CN111889195A (en) | 2020-11-06 |
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| CN202010765848.9A Pending CN111889195A (en) | 2020-08-03 | 2020-08-03 | L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder |
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| CN2144023Y (en) * | 1992-01-22 | 1993-10-20 | 王大年 | Pyramidal lining plate for ball mill |
| US20020134871A1 (en) * | 2001-03-26 | 2002-09-26 | Anderson Craig J. | Sinusoidal profile for grinding mill liners |
| CN102950049A (en) * | 2011-08-31 | 2013-03-06 | 南京梅山冶金发展有限公司 | Ball milling machine |
| CN207576551U (en) * | 2017-10-12 | 2018-07-06 | 昆明理工大学 | A kind of semi-autogenous mill liner plate with hard load bearing unit lifting strip |
| CN210935216U (en) * | 2019-09-11 | 2020-07-07 | 河南金源黄金矿业有限责任公司 | Novel wear-resistant composite rubber lining plate |
| CN212493258U (en) * | 2020-08-03 | 2021-02-09 | 攀枝花贝氏体耐磨管道有限公司 | L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder |
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2020
- 2020-08-03 CN CN202010765848.9A patent/CN111889195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2144023Y (en) * | 1992-01-22 | 1993-10-20 | 王大年 | Pyramidal lining plate for ball mill |
| US20020134871A1 (en) * | 2001-03-26 | 2002-09-26 | Anderson Craig J. | Sinusoidal profile for grinding mill liners |
| CN102950049A (en) * | 2011-08-31 | 2013-03-06 | 南京梅山冶金发展有限公司 | Ball milling machine |
| CN207576551U (en) * | 2017-10-12 | 2018-07-06 | 昆明理工大学 | A kind of semi-autogenous mill liner plate with hard load bearing unit lifting strip |
| CN210935216U (en) * | 2019-09-11 | 2020-07-07 | 河南金源黄金矿业有限责任公司 | Novel wear-resistant composite rubber lining plate |
| CN212493258U (en) * | 2020-08-03 | 2021-02-09 | 攀枝花贝氏体耐磨管道有限公司 | L-shaped split type wear-resistant lining plate of semi-automatic mill and mill inner cylinder |
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