Improved bottom lining plate of tower mill

Abstract

The utility model discloses a modified tower mill bottom lining plate which comprises a lining plate base body similar to a sector ring, the lining plate base body is composed of a first part and a second part, the second part is in a strip shape and is close to a diameter edge of the lining plate base body, the diameter edge is located on the incident flow side, the top face of the second part is higher than the top face of the first part, and the top face of the second part is close to the diameter edge of the lining plate base body. The side wall of the incident flow side is in an inclined slope shape. According to the bottom lining plate, the incident flow side of a traditional bottom lining plate is lengthened and thickened, so that the wear-resisting period of the part with large abrasion is prolonged, the service life of the bottom lining plate is prolonged, the condition that the bottom lining plate is replaced in advance due to too fast local loss is avoided, the cost is reduced, and the hollow design is adopted in the area with small abrasion, so that the service life of the bottom lining plate is prolonged. The rubber is used for filling to balance the increased weight of the improved lining plate, and the cost is prevented from being increased by greatly increasing the weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of mill linings, and in particular relates to a modified tower mill bottom lining. Background Art

[0002] The tower mill is an ultra-fine grinding machine, which is widely used in the mining and fine grinding fields. Its working process is that after the material enters the mill, it is fully mixed with the grinding medium under the action of the agitator, and moves up and down along the axial direction and in a circular motion along the ring axis; the material is crushed by the impact, shear and friction generated by the combined action of the medium gravity and extrusion force, and the crushed products are naturally classified by their own gravity. Large particles sink and continue to be ground, while small particles float up and enter the classification device, overflowing to become qualified grinding products. The main advantage of the tower mill is low energy consumption, which can save 30% to 50% of energy consumption compared to traditional ball mills. It also has the advantages of small footprint and low medium consumption.

[0003] The tower mill is subject to relatively large wear during operation, and the liner is a necessary component, among which the bottom liner is one of them. The working principle of the tower mill is that during the operation of the low-speed rotating stirring spiral, the centrifugal force, gravity, and friction force cause the crushing medium and the material to achieve an orderly movement cycle and a basic macroscopic force balance. In the spiral stirring, it is a spiral rise at a speed lower than the lifting speed, and between the inner liner and the outer edge of the spiral, it is a spiral descent. The principle structure makes the crushing medium and the fluid form an uneven contact with the surface of the bottom liner. This uneven contact will directly affect the service life of the liner. The parts with relatively large wear have a shorter life, so the frequency of replacing the bottom liner is directly linked to it, causing the bottom liner to have to be replaced due to severe local wear, which shortens the service life and increases production costs.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a modified bottom lining of a tower mill. By modifying the structure of the bottom lining and thickening and lengthening the parts with greater wear, its life cycle is extended, and the bottom lining is avoided from being replaced prematurely due to excessive local wear, thereby extending the service life and saving costs.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A modified bottom liner of a tower mill comprises a liner base in a fan-shaped ring shape, the liner base consists of a first part and a second part, the second part is in a strip shape and is adjacent to a diameter edge of the liner base, and the diameter edge is located on the upstream side, the top surface of the second part is higher than the top surface of the first part, and the side wall on the upstream side is in an inclined slope shape.

[0008] Furthermore, the second part is composed of an extension section and a drainage section. The extension section is in a triangular shape and is connected to the first part. The drainage section is in a trapezoidal shape and is connected to the extension section.

[0009] Furthermore, the top surface of the extension section is higher than the top surface of the first portion, and the height difference is 10 mm.

[0010] Furthermore, the lining plate substrate is provided with a mounting hole and a hollow hole, and a rubber plug for sealing is detachably embedded in the hollow hole.

[0011] Furthermore, the hollow holes are square, oval or circular.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] The utility model lengthens and thickens the flow-facing side of the traditional bottom liner, thereby extending the wear-resistant period of the part with relatively large wear, thereby extending the service life of the bottom liner, avoiding premature replacement due to excessive local wear and tear, and reducing costs. A hollow design is adopted in the area with small wear and tear, and rubber is filled to balance the increased weight of the modified liner, avoiding a significant increase in weight and cost.

[0014] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the running direction of the crushing medium and fluid on the traditional bottom liner;

[0018] Figure 3 This is a schematic diagram of the wear and tear on the traditional bottom liner.

[0019] In the figure: 1- liner substrate, 2- mounting hole; 3- hollow hole, 11- first part, 12- second part; 1201- extension section; 1202- drainage section.

[0020] A- Crushing media and fluid running direction; B- Area prone to wear.

[0021] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1

[0026] like Figures 1 to 3 As shown, a modified tower mill bottom liner described in this embodiment includes a liner base 1 in a fan-shaped ring shape, wherein the liner base 1 is composed of a first portion 11 and a second portion 12. In conjunction with the accompanying drawings, the second portion 12 is in a strip shape and is located on a diameter side of the liner base 1, and the diameter side is located on the upstream side. Figure 2-3 As shown in the figure, the crushing medium and the fluid running direction A will directly affect the wear of the liner. Figure 3 Mark the easily worn area B. The current bottom lining plate mainly wears fast in this area due to the direction of fluid flow. Therefore, the side facing the direction of the fluid is the oncoming side. Strengthening the oncoming side can enhance its wear resistance, thereby extending the service life. The utility model sets the top surface of the second part 12 to be higher than the top surface of the first part 11. The lengthening and thickening can enhance the wear resistance period. The side wall of the oncoming side is inclined, which ensures the smooth flow of the fluid without changing the original flow law, and plays a drainage role.

[0027] For the convenience of description, the second portion 12 is divided into different sections, that is, the second portion 12 is composed of an extension section 1201 and a drainage section 1202. Figure 1 As shown in the figure, the extension section 1201 is in a triangular shape and connected to the first part 11. The top surface of the extension section 1201 is higher than the top surface of the first part 11, and the height difference is controlled at about 10 mm, that is, the extension section 1201 is 10 mm thicker than the first part 11. The drainage section 1202 is in a trapezoidal shape and connected to the extension section 1201. Of course, the trapezoidal transition here can also be an arc shape. It should be noted that the liner substrate 1 is made of ceramic material, and it can also be made of steel. The material can be selected according to the abrasive requirements.

[0028] The lining plate base 1 is provided with a mounting hole 2 and a hollow hole 3, in which a rubber plug for plugging can be removably embedded. The hollow hole 3 is used for weight reduction. This part of the area is relatively less worn, so this part of the area adopts a hollow design, and rubber can be used to fill this part to ensure that the overall weight of the lining plate does not increase significantly when the structure is adjusted. The hollow hole 3 can be square, oval, circular, or other geometric shapes.

[0029] The utility model lengthens and thickens the flow-facing side of the traditional bottom liner, thereby extending the wear-resistant period of the part with relatively large wear, thereby extending the service life of the bottom liner, avoiding premature replacement due to excessive local wear and tear, and reducing costs. A hollow design is adopted in the area with small wear and tear, and rubber is filled to balance the increased weight of the modified liner, avoiding a significant increase in weight and cost.

[0030] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A modified tower mill bottom liner, comprising a liner base (1) in a fan-shaped ring shape, characterized in that: The lining plate base (1) is composed of a first part (11) and a second part (12); the second part (12) is in a strip shape and is adjacent to a diameter edge of the lining plate base (1), and the diameter edge is located on the flow-incoming side; the top surface of the second part (12) is higher than the top surface of the first part (11), and the side wall on the flow-incoming side is in an inclined slope shape.

2. The modified tower mill bottom lining according to claim 1, characterized in that: The second part (12) is composed of an extension section (1201) and a drainage section (1202); the extension section (1201) is in a triangular shape and is connected to the first part (11); the drainage section (1202) is in a trapezoidal shape and is connected to the extension section (1201).

3. The modified tower mill bottom lining plate according to claim 2 is characterized in that: The top surface of the extension section (1201) is higher than the top surface of the first portion (11), with a height difference of 10 mm.

4. The modified tower mill bottom lining plate according to claim 1, characterized in that: The lining plate base (1) is provided with a mounting hole (2) and a hollow hole (3), and a rubber plug for sealing is detachably embedded in the hollow hole (3).

5. The modified tower mill bottom lining plate according to claim 4 is characterized in that: The hollow hole (3) is square, oval or circular.

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