CN212441450U - Structure of barrel composite lining plate of ball mill, semi-autogenous mill or autogenous mill - Google Patents
Structure of barrel composite lining plate of ball mill, semi-autogenous mill or autogenous mill Download PDFInfo
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- CN212441450U CN212441450U CN202021829337.0U CN202021829337U CN212441450U CN 212441450 U CN212441450 U CN 212441450U CN 202021829337 U CN202021829337 U CN 202021829337U CN 212441450 U CN212441450 U CN 212441450U
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- 239000002131 composite material Substances 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 50
- 238000005299 abrasion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 210000002445 nipple Anatomy 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a structure of compound welt of barrel of ball mill, semi-autogenous mill or autogenous mill, the novel nipple rectifier comprises a cylindrical shel, the inner wall of barrel is equipped with the welt, be equipped with a plurality of promotion strips on the welt, promote the strip and install on the welt around the circumference, be equipped with the rubber piece on the promotion strip and through the wear-resisting steel billet that the connecting piece is connected. High toughness (HRC value is greater than 30J/cm)2) The rolled steel and the rolled steel of high-strength steel (the tensile strength is more than 450 Mpa) are compositely embedded, the inherent mechanical properties of various steel materials are utilized to the maximum extent, and the steel can be reducedThe cost is low, the service life is prolonged, and the service life of the lining plate of the existing various large-scale mills is expected to be prolonged by 50-100%.
Description
Technical Field
The utility model belongs to the technical field of the technique of mill equipment and specifically relates to a structure of the compound welt of barrel of ball mill, semi-autogenous mill or autogenous mill is related to.
Background
The mill comprises an autogenous mill, a semi-autogenous mill or a ball mill, and the mill is mainly used for grinding ores in the ball mill, so that useful minerals and gangue and useful minerals are subjected to monomer dissociation. The so-called monomer dissociation means that the useful minerals do not contain gangue, and the gangue does not contain the useful minerals. With the development of ore grinding technology and mill (semi-autogenous mill, ball mill) manufacturing technology, the sizes of grinding media and feeding ore are gradually increased, and the impact and abrasion effect on the mill lining plate are increased by times. The good lining plate is mainly embodied in the following aspects: the grinding efficiency of the grinding machine is improved to the maximum extent, the power consumption of grinding is minimized, and the service cycle is as long as possible.
The most intuitive perception of the quality of the mill liner is the length of the expiration date (life) during use. While the failure modes of the liner plate are mainly two types: firstly, abrasion; second, fracture. To improve the service life of the lining plate of the mill, the solution is mainly considered from three aspects. The hardness or strength of the material is improved (the hardness and the strength can be converted), the toughness of the material resistant to the electuary is improved, and the uniformity of the inherent quality of the product is ensured.
For the liner plate in general: the higher the hardness of the material, the better the wear resistance, the higher the strength of the material, the better the wear resistance, and the higher the impact toughness (akv), the better the fracture resistance. People try to improve the hardness and the impact toughness of the metal lining plate. However, the manufacturing process of the metal lining plate is mainly casting. For process reasons, the hardness and toughness indexes of the casting liner plate are a pair of contradictions. Namely: the hardness is improved, the wear resistance is improved, the toughness index is reduced, and the impact fracture resistance of the lining plate is influenced; and vice versa. The casting process of the metal lining plate is difficult to solve the problem that the lining plate has good impact toughness and high wear resistance (the general principle is to furthest improve the hardness under the condition of ensuring the impact toughness value, so that the service life of the metal lining plate under the current condition is difficult to be greatly improved, and the service life of the lining plate of the existing large-scale semi-autogenous mill is only about three months).
The service life of the lining plate of the existing mill is prolonged, and the ore grinding efficiency of the mill is not reduced. The better method is as follows: the hardness and the impact toughness (akv) value of the material are improved. Due to the inherent characteristics of the casting process, it is very difficult to greatly improve the indexes by adopting the casting process! The above index of the rolled high-strength steel (after heat treatment) can be greatly improved. If the high-strength steel rolling process is directly used, the high-strength steel with the shape of the section of the lining plate (the maximum thickness is 100 mm due to the limitation of the quenching depth) is rolled out, and the method is theoretically feasible; for batch reasons, the cost of the tooling is split, so that the unit cost of directly rolling the deformed high-strength liner plate steel is high. The lower part of the high-strength steel is adhered and filled with rubber, and compounded into a rubber and metal composite lining plate. The lining plate can well solve the problems of the service life, the ore grinding efficiency and the manufacturing cost of the lining plate. However, the thickness of high strength steels cannot generally exceed 100 mm due to the heat treatment characteristics of the steel. Therefore, only a general ball mill can be applied. The lining plates of various popular large-scale autogenous mills, semi-autogenous mills and ball mills can not be broken through all the time. The above problem can be solved if we have a way to put two pieces together firmly.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects of the prior art, and provides a structure of a composite liner plate of a cylinder body of a ball mill, a semi-autogenous mill or an autogenous mill, which firmly connects high-toughness steel and high-strength metal together.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a structure of compound welt of barrel of ball mill, semi-autogenous mill or autogenous mill, includes the barrel, the inner wall of barrel is equipped with the welt, be equipped with a plurality of promotion strips on the welt, promote the strip and install on the welt around the circumference, be equipped with the wear-resisting steel billet of elasticity piece and through the connecting piece connection on the promotion strip.
Further, the abrasion-resistant steel block comprises the impact toughness HRC value of more than 30J/cm2The high-toughness metal block and the high-strength metal block with the tensile strength larger than 450Mpa are connected through a connecting piece.
Further, the connecting piece comprises a plurality of connecting plates with triangular structures, and the connecting plates are arranged at intervals.
Further, the high-strength metal block is rolled steel with the tensile strength larger than 450Mpa, and the high-toughness metal block is impact toughness HRC value is more than 30J/cm2The rolled steel of (3).
Further, the high-toughness metal block is arranged on the upper portion of the wear-resistant steel block, and the high-toughness metal block is connected with one short edge of the first connecting piece to form a tenon block; the high-strength metal block is arranged on one side of the wear-resistant steel block and connected with the other short side of the second connecting piece to form a mortise block, and the tenon block is inserted into the mortise block.
Furthermore, the long side of the connecting piece is provided with a mortise plate connecting plate.
Further, the inner wall junction of lifting bar and barrel sets up for a plurality of T font structure side by side, reserves T shape recess between adjacent, and the inner wall of barrel corresponds T shape groove and locates to be equipped with T shape arch, T shape arch and T shape groove weld.
The utility model has the advantages that:
high toughness (HRC value is greater than 30J/cm)2) The rolling steel and the high-strength steel (the tensile strength is more than 450 Mpa) are compositely embedded, the inherent mechanical properties of various steels are utilized to the maximum extent, the cost can be reduced, the service life is prolonged, and the service life of the lining plate of the existing large-scale mill is expected to be prolonged by 50-100%.
Drawings
FIG. 1 is a schematic structural view of a composite liner plate;
FIG. 2 is an enlarged view of FIG. 1;
FIG. 3 is a schematic structural view of a tenon block;
FIG. 4 is a schematic structural diagram of a mortise block;
fig. 5-is a schematic view of connection of the tenon block and the mortise block.
In the figure: 1-lining plate, 2-lifting bar, 3-rubber block, 4-wear-resistant steel block, 5-T-shaped groove, 6-connecting piece, 41-high-toughness metal block, 42-high-strength metal block, 6-mortise plate connecting plate, 7-first connecting piece, 8-second connecting piece, 100-tenon block and 200-mortise block.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1: the utility model provides a structure of compound welt of barrel of ball mill, semi-autogenous mill or autogenous mill, includes the barrel, the inner wall of barrel is equipped with welt 1, be equipped with a plurality of promotion strips 2 on the welt 1, promote strip 2 and install on welt 1 around the circumference, be equipped with the wear-resisting steel billet 4 that the elasticity piece and connect through the connecting piece on the promotion strip 2.
Referring to fig. 2, in the present embodiment, the elastic block is made of an elastic material, preferably rubber. Therefore, the lifting bar 2 comprises a rubber block 3 and a wear-resistant steel block 4, the wear-resistant metal block 4 is a combination of a high-toughness metal block 41 and a high-strength metal block 42, wherein the high-toughness metal block 41 has an HRC value of more than 30J/cm2The high-strength metal block 42 is a rolled steel having a tensile strength of more than 450 MPa.
Referring to fig. 3 and 4, in the present embodiment, the high-strength metal block is provided on one side in the rotation direction of the cylinder, and the cross section of the high-strength metal block is made similar to a parallelogram, so that the contact area between the high-strength metal block and the ore in the cylinder is increased.
In this embodiment, the connecting member includes a plurality of triangular connecting plates arranged at intervals, and divides the connecting member into a first connecting member 7 and a second connecting member 8. The upper short edge of the first connecting piece 7 is welded with the high-toughness metal block to form a tenon block 100; the short side of the second connecting piece 8 is welded with the high-strength metal block to form a mortise block 200.
Referring to fig. 5, because a space exists between adjacent connecting plates in the tenon block and the mortise block, the tenon block 100 may be inserted into the mortise block 200, and then the first connecting plate and the second connecting plate may be fixedly connected together by means of vulcanization.
The long limit department of second connecting plate is equipped with fourth of twelve earthly branches board connecting plate 6, and fourth of twelve earthly branches board connecting plate 6 is the rectangle structure, and the setting up of fourth of twelve earthly branches board connecting plate 6 makes the connection of high tenacity metal block and high strength metal block can not become flexible.
The high-toughness metal block is not connected with the high-strength metal block.
In this example, according to the position of fig. 3, the high-toughness metal block is defined as a first metal block, and the high-strength metal block is defined as a second metal block.
In the case where only the performance is considered without considering the cost, the first metal block may be made of a high-strength high-toughness rolled steel, and the second metal block may be made of a high-strength high-toughness rolled steel.
Under the conditions of considering cost and cost performance, the first metal block is made of high-toughness rolled steel, namely the HRC value is more than 30J/cm2The second metal block is made of high-strength rolled steel, namely the rolled steel with the tensile strength larger than 450 MPa. Because the second metal block is disposed at a position where the grinding function is mainly performed on the ore when the cylinder rotates, the second metal block needs high strength performance; on one hand, when the ore is rotated to the middle upper part, the first metal block can be thrown off and hit the second metal block to be crushed, and then a toughness material needs to be arranged behind the second metal block to relieve the force, and a high-toughness metal block and a rubber block are designed behind the second metal block; since the area of the first metal block will also be in contact with the ore, grinding efficiency of the machine is too low if it is designed as a rubber block.
The rolled steels cannot be welded with each other, or are easy to damage; in addition, if bolt connection between rolled steel is adopted, bolt holes need to be punched, and the cost is high. In this embodiment, the connecting member is used to connect the two components, so that the two components can be fixedly connected and the cost can be reduced.
In this embodiment, be equipped with two T font structures in the lower part of block rubber 3, reserve out T shape recess 5 in the middle of, the inner wall of barrel corresponds T shape recess 5 department and is equipped with T shape arch, T shape arch and T shape recess 5 welding stabilize the connection of welt 1 and barrel inner wall.
Be equipped with the high strength steel on the welt between the two adjacent promotion strips, the bottom of high strength steel is equipped with the rubber layer, hits when the ore is thrown off and hit also can be with the ore breakage on the welt promptly, and the rubber layer plays the cushioning effect.
The above are only embodiments of the present invention, and are not intended to limit the present invention, and to those skilled in the art, the present invention can have the combination and modification of the above various technical features, and those skilled in the art can replace the modifications, equivalents, or use the structure or method of the present invention in other fields to achieve the same effect without departing from the spirit and scope of the present invention, and all belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a structure of compound welt of barrel of ball mill, semi-autogenous mill or autogenous mill which characterized in that: the novel lifting cylinder comprises a cylinder body, the inner wall of barrel is equipped with the welt, be equipped with a plurality of lifting strips on the welt, lifting strip installs on the welt around the circumference, is equipped with the wear-resisting steel block that the elasticity piece and connect through the connecting piece on the lifting strip.
2. The structure of the composite liner plate for the cylinder of a ball mill, a semi-autogenous mill or an autogenous mill according to claim 1, characterized in that: the abrasion-resistant steel block comprises the impact toughness HRC value of more than 30J/cm2The high-toughness metal block and the high-strength metal block with the tensile strength larger than 450Mpa are connected through a connecting piece.
3. The structure of the composite liner plate for the cylinder of the ball mill, the semi-autogenous mill or the autogenous mill according to claim 2, characterized in that: the connecting piece comprises a plurality of connecting plates with triangular structures, and the connecting plates are arranged at intervals.
4. The structure of the composite liner plate for the cylinder of the ball mill, the semi-autogenous mill or the autogenous mill according to claim 2, characterized in that: the high-strength metal block is rolled steel with the tensile strength larger than 450Mpa, and the high-toughness metal block is impact toughness with the HRC value larger than 30J/cm2The rolled steel of (3).
5. The structure of the composite liner plate for the cylinder of a ball mill, a semi-autogenous mill or an autogenous mill according to claim 4, characterized in that: the high-toughness metal block is arranged at the upper part of the wear-resistant steel block and is connected with one short side of the first connecting piece to form a tenon block; the high-strength metal block is arranged on one side of the wear-resistant steel block and connected with the other short side of the second connecting piece to form a mortise block, and the tenon block is inserted into the mortise block.
6. The structure of the composite liner plate for the cylinder of a ball mill, a semi-autogenous mill or an autogenous mill according to claim 5, characterized in that: and the long side of the second connecting piece is provided with a mortise plate connecting plate.
7. The structure of the composite liner plate for the cylinder of the ball mill, the semi-autogenous mill or the autogenous mill according to claim 6, characterized in that: the inner wall junction of promotion strip and barrel sets up for a plurality of T font structure side by side, reserves T shape recess between adjacent, and the inner wall of barrel corresponds T shape groove and locates to be equipped with T shape arch, T shape arch and T shape groove weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829337.0U CN212441450U (en) | 2020-08-28 | 2020-08-28 | Structure of barrel composite lining plate of ball mill, semi-autogenous mill or autogenous mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829337.0U CN212441450U (en) | 2020-08-28 | 2020-08-28 | Structure of barrel composite lining plate of ball mill, semi-autogenous mill or autogenous mill |
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| Publication Number | Publication Date |
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| CN212441450U true CN212441450U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021829337.0U Active CN212441450U (en) | 2020-08-28 | 2020-08-28 | Structure of barrel composite lining plate of ball mill, semi-autogenous mill or autogenous mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889197A (en) * | 2020-08-28 | 2020-11-06 | 湖南国发控股有限公司 | Structure of barrel composite lining plate of ball mill, semi-autogenous mill and autogenous mill |
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2020
- 2020-08-28 CN CN202021829337.0U patent/CN212441450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889197A (en) * | 2020-08-28 | 2020-11-06 | 湖南国发控股有限公司 | Structure of barrel composite lining plate of ball mill, semi-autogenous mill and autogenous mill |
| CN111889197B (en) * | 2020-08-28 | 2023-08-01 | 湖南国发控股有限公司 | Structure of ball mill, semi-autogenous mill and composite liner plate of barrel of autogenous mill |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231221 Address after: No. 86 Kaikai Road, Huairou District, Beijing, 101400 Patentee after: Huang Zhiqi Address before: Room 2701, building 1, yanchuanshan ecological park, No. 35, Meilin street, Yuhua District, Changsha City, Hunan Province, 410011 Patentee before: Hunan Guofa Holding Co.,Ltd. |