Wear-resistant protective device of vertical mill barrel

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By installing multiple small pieces of wear-resistant components and shock-absorbing mechanisms on the inner wall of the vertical mill barrel, the problems of reduced efficiency and shortened equipment life caused by material impact wear are solved, and the wear resistance and stability of the equipment are improved.

CN222753396UActive Publication Date: 2025-04-15EZHOU HUAZHONG FILLING ENG MATERIALS

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Patent Information

Application Number: CN202421019958.0
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-11
Publication Date: 2025-04-15
Estimated Expiration: 2034-05-11

AI Technical Summary

Technical Problem

The vertical mill barrel is subjected to continuous impact and wear by materials during the working process, resulting in a decrease in grinding efficiency, a decrease in output and product quality, a shortened service life of the equipment, and an increase in maintenance costs.

Method used

A wear-resistant protection device for a vertical mill barrel is designed, including a plurality of small wear-resistant components, consisting of an arc-shaped connecting plate and a wear-resistant plate, and a shock absorbing mechanism is provided therebetween. The wear-resistant plate is coated with tungsten carbide or ceramic coating, and the shock absorbing mechanism includes rubber or silicone shock absorbing pads and high-strength steel reinforcement.

Benefits of technology

It effectively reduces the wear of material-to-material mill barrel, extends the service life of the equipment, reduces maintenance costs and downtime, and improves the stability and reliability of the equipment.

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Abstract

The utility model discloses a wear-resistant protective device of a vertical mill barrel. The wear-resistant protective device comprises the vertical mill barrel and a wear-resistant component arranged on the inner wall of the vertical mill barrel, the plurality of wear-resistant components are sequentially spliced along the inner wall of the vertical mill barrel; the wear-resisting assembly comprises an arc-shaped connecting plate and a wear-resisting plate, and a damping mechanism is arranged between the arc-shaped connecting plate and the wear-resisting plate. By arranging the wear-resisting plate and coating the tungsten carbide coating or the ceramic coating on the surface of the wear-resisting plate, the wear resistance of the inner wall of the vertical mill barrel is greatly improved, the design can effectively resist continuous impact and wear of materials on the vertical mill barrel, and the service life of equipment is prolonged; the shock absorption mechanism is arranged between the arc-shaped connecting plate and the wear-resisting plate, so that the impact force of materials on the vertical mill barrel can be effectively absorbed and dispersed, the vibration and noise of equipment are reduced, and the stability and reliability of the operation of the equipment are improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of vertical mill barrels, in particular to a wear-resistant protective device for a vertical mill barrel. Background Art

[0002] As a high-efficiency large-scale grinding equipment, vertical mill is widely used in cement, electric power, metallurgy and other industries. During the operation of the vertical mill, its inner wall will be continuously impacted and worn by blocky and granular materials, which will reduce the grinding efficiency of the vertical mill, resulting in a decrease in output and product quality. In serious cases, it is necessary to disassemble and weld, which is time-consuming and labor-intensive, and causes prolonged downtime, shortening the service life of the equipment, increasing maintenance costs, and causing huge economic losses to the company. Therefore, how to reduce the wear of materials in the cylinder wall and increase the service life of the equipment has become a problem that needs to be solved urgently. Summary of the invention

[0003] The utility model aims to provide a wear-resistant protective device for a vertical mill cylinder to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A wear-resistant protective device for a vertical mill cylinder comprises a vertical mill cylinder and a wear-resistant component arranged on the inner wall of the vertical mill cylinder; the wear-resistant components are provided in plurality, wherein the plurality of wear-resistant components are sequentially spliced along the inner wall of the vertical mill cylinder; the wear-resistant component comprises an arc-shaped connecting plate and a wear-resistant plate, wherein a shock-absorbing mechanism is provided between the arc-shaped connecting plate and the wear-resistant plate.

[0006] Preferably, one side of the arc-shaped connecting plate is fixedly connected to the inner wall of the vertical mill cylinder, wherein the other side of the arc-shaped connecting plate is fixedly connected to the shock absorbing mechanism.

[0007] Preferably, the shock absorbing mechanism comprises shock absorbing pads and reinforcing ribs, wherein the shock absorbing pads and the reinforcing ribs are distributed alternately.

[0008] Preferably, the height of the shock-absorbing pad is higher than the height of the reinforcing rib, wherein adjacent shock-absorbing pads are bonded and fixed to the reinforcing rib by a high-strength adhesive.

[0009] Preferably, a mounting hole is opened on one side of the reinforcing rib close to the wear-resistant plate, wherein a connecting rod is arranged in the mounting hole; one end of the connecting rod is arranged in the mounting hole, wherein the other end of the connecting rod is fixedly connected to the wear-resistant plate.

[0010] Preferably, a spring is sleeved on the outer wall of the connecting rod, wherein one end of the spring is fixedly connected to the bottom of the mounting hole, and the other end of the spring is fixedly connected to the wear-resistant plate.

[0011] Preferably, the shock-absorbing pad is made of rubber, silicone or other elastic materials.

[0012] Preferably, the reinforcing ribs are made of high-strength steel.

[0013] Preferably, the wear-resistant plate is made of a high-strength steel plate or an alloy steel plate, wherein the surface of the wear-resistant plate is coated with a tungsten carbide coating or a ceramic coating.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model installs a wear-resistant protective structure on the inner wall of the vertical mill cylinder, wherein the wear-resistant protective structure is spliced with multiple small wear-resistant components, so that when the protective structure is severely worn locally, the corresponding wear-resistant components can be easily replaced without large-scale repair or replacement of the entire cylinder, thereby greatly reducing maintenance costs and downtime; the connecting plate is designed to be an arc-shaped structure that fits tightly with the inner wall of the vertical mill cylinder, the wear-resistant components can be tightly matched with the cylinder regardless of how the shape of the cylinder changes; the wear resistance of the inner wall of the vertical mill cylinder is greatly improved by arranging a wear-resistant plate and coating the surface thereof with a tungsten carbide coating or a ceramic coating, and this design can effectively resist the continuous impact and wear of the material on the vertical mill cylinder, thereby extending the service life of the equipment; the shock-absorbing mechanism is arranged between the arc-shaped connecting plate and the wear-resistant plate, thereby effectively absorbing and dispersing the impact force of the material on the vertical mill cylinder, thereby reducing the vibration and noise of the equipment, and improving the stability and reliability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the cylinder of the vertical mill of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the connection between the cylinder of the vertical mill and the wear-resistant component of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the wear-resistant component of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the shock absorbing mechanism of the utility model;

[0019] Figure 5 yes Figure 4 An enlarged schematic diagram of the structure at A is shown;

[0020] Figure 6 It is a structural schematic diagram of the wear-resistant plate of the utility model.

[0021] Among them: 1. Vertical mill barrel; 2. Wear-resistant components; 201. Arc connecting plate; 202. Wear-resistant plate; 3. Shock-absorbing mechanism; 301. Shock-absorbing pad; 302. Reinforcing rib; 4. Mounting hole; 5. Connecting rod; 6. Spring. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Please refer to Figures 1 to 6 To achieve the above purpose, the utility model provides the following technical solutions:

[0024] A wear-resistant protective device for a vertical mill cylinder, comprising a vertical mill cylinder 1 and a wear-resistant component 2 arranged on the inner wall of the vertical mill cylinder 1; a plurality of wear-resistant components 2 are provided, wherein the plurality of wear-resistant components 2 are sequentially spliced along the inner wall of the vertical mill cylinder 1; the wear-resistant component 2 comprises an arc-shaped connecting plate 201 and a wear-resistant plate 202, wherein a shock absorbing mechanism 3 is provided between the arc-shaped connecting plate 201 and the wear-resistant plate 202; a plurality of wear-resistant components 2 are sequentially spliced along the inner wall of the vertical mill cylinder 1 to form a wear-resistant protective structure, wherein the wear-resistant component 2 is spliced by a plurality of small pieces, so that a certain wear-resistant component 2 When local wear is severe, the corresponding wear-resistant component 2 can be easily replaced without large-scale repair or replacement of the entire cylinder, which greatly reduces maintenance costs and downtime; by setting the wear-resistant plate 202, the continuous impact and wear of the material on the vertical mill cylinder 1 can be effectively resisted, and the service life of the equipment can be extended. By setting a shock-absorbing mechanism 3 between the arc-shaped connecting plate 201 and the wear-resistant plate 202, the shock-absorbing mechanism 3 can effectively absorb and disperse the impact force of the material on the vertical mill cylinder 1, reduce the vibration and noise of the equipment, and improve the stability and reliability of the equipment operation.

[0025] Please refer to Figure 2 , Figure 3 As an embodiment of the utility model, one side of the arc-shaped connecting plate 201 is tightly fitted to the inner wall of the vertical mill barrel 1 by welding or bolting, and the other side of the arc-shaped connecting plate 201 is fixedly connected to the shock absorbing mechanism 3.

[0026] In the above-described scheme, an arc-shaped connecting plate 201 of corresponding curvature and size is customized according to the shape and size of the inner wall of the vertical mill barrel 1, thereby ensuring that the arc-shaped connecting plate 201 can fit tightly with the inner wall of the vertical mill barrel 1, and at the same time, the arc-shaped connecting plate 201 is firmly fixed to the inner wall of the vertical mill barrel 1 by welding or bolting. If welding is selected, it is necessary to ensure the welding quality to avoid welding defects; if bolting is selected, it is necessary to select appropriate bolt specifications and ensure that the bolt tightening torque meets the requirements to ensure the strength and stability of the connection. During the fixing process, it is necessary to ensure that there is no gap between the arc-shaped connecting plate 201 and the inner wall of the vertical mill barrel 1 to achieve a tight fit, thereby preventing the material from penetrating from the gap during wear to cause further damage to the vertical mill barrel 1, thereby extending the service life of the equipment.

[0027] Please refer to Figure 4 , Figure 5As an embodiment of the utility model, the shock absorbing mechanism 3 includes a shock absorbing pad 301 and a reinforcing rib 302, wherein the shock absorbing pad 301 and the reinforcing rib 302 are alternately distributed; the shock absorbing pad 301 is made of rubber, silicone or other elastic materials, and the reinforcing rib 302 is made of high-strength steel; the height of the shock absorbing pad 301 is higher than the height of the reinforcing rib 302, wherein adjacent shock absorbing pads 301 and reinforcing ribs 302 are bonded and fixed by a high-strength adhesive; by opening a mounting hole 4 on the side of the reinforcing rib 302 close to the wear-resistant plate 202, and arranging a connecting rod 5 in the mounting hole 4; one end of the connecting rod 5 is arranged in the mounting hole 4 and movably connected thereto, wherein the other end of the connecting rod 5 is fixedly connected to the wear-resistant plate 202; a spring 6 is sleeved on the outer wall of the connecting rod 5, wherein one end of the spring 6 is fixedly connected to the bottom of the mounting hole 4, and the other end of the spring 6 is fixedly connected to the wear-resistant plate 202.

[0028] In the above-described scheme, the staggered distribution of the shock-absorbing pads 301 and the reinforcing ribs 302 helps the wear-resistant plate 202 to disperse the force when impacted and provide a better shock-absorbing effect. The height of the shock-absorbing pads 301 is higher than the height of the reinforcing ribs 302, so that a plurality of step grooves are formed between the shock-absorbing pads 301 and the reinforcing ribs 302, so that when impacted, the shock-absorbing pads 301 first contact and absorb the impact force, and the adjacent shock-absorbing pads 301 and the reinforcing ribs 302 are bonded and fixed by a high-strength adhesive to ensure that the two are tightly combined to form a stable shock-absorbing layer; wherein the shock-absorbing pads 301 are made of rubber, silicone or other elastic materials, which have good elasticity and recovery, and can effectively absorb and buffer the energy generated by the collision of materials, and the reinforcing ribs 302 are made of high-strength steel to provide structural rigidity and stability for the shock-absorbing mechanism 3 to prevent deformation or damage when subjected to strong impact.

[0029] Furthermore, a mounting hole 4 is provided on one side of the reinforcing rib 302 close to the wear-resistant plate 202, wherein one end of a connecting rod 5 is inserted into the mounting hole 4 and movably connected thereto, and the other end of the connecting rod 5 is fixedly connected to the wear-resistant plate 202, so that the connecting rod 5 firmly connects the wear-resistant plate 202 and the shock absorbing mechanism 3 together; a spring 6 is sleeved on the outer wall of the connecting rod 5, the function of the spring 6 is to provide additional cushioning when impacted, and at the same time help the shock absorbing pad 301 to better absorb and disperse the impact force, when the wear-resistant plate 202 is impacted, the spring 6 will compress and absorb part of the energy, and then gradually return to its original state, thereby reducing the direct impact on the inner wall of the vertical mill cylinder 1.

[0030] Through the above design and working mode, the shock absorbing mechanism 3 cooperates with the wear-resistant plate 202 to effectively reduce the impact and wear of the material on the inner wall of the vertical mill cylinder 1, thereby improving the service life and efficiency of the equipment, while also facilitating the maintenance and replacement of worn parts, thereby reducing maintenance costs and downtime.

[0031] See also Figure 6 As an embodiment of the present utility model, the wear-resistant plate 202 is made of a high-strength steel plate or an alloy steel plate, wherein the surface of the wear-resistant plate 202 is coated with a tungsten carbide coating or a ceramic coating.

[0032] In the above-mentioned scheme, the wear-resistant plate 202 is mainly made of high-strength steel plate or alloy steel plate. These materials have excellent mechanical properties and wear resistance, and can withstand high-speed impact and long-term wear of materials. The high-strength steel plate obtains higher yield strength and tensile strength by optimizing alloy elements and heat treatment process, thereby improving wear resistance; the alloy steel plate enhances the hardness and corrosion resistance of the steel by adding alloy elements such as chromium, nickel, and molybdenum, so that it can still maintain good performance in harsh working environments; in order to further improve the wear resistance and service life of the wear-resistant plate 202, a layer of tungsten carbide coating or ceramic coating is coated on the surface of the wear-resistant plate 202, wherein the tungsten carbide coating has high hardness and excellent wear resistance, and can effectively resist the erosion of materials. and wear; the ceramic coating is known for its extremely high hardness and corrosion resistance, and can effectively protect the wear-resistant plate 202 from direct impact and wear of the material; the wear-resistant plate 202 is tightly connected to the shock absorbing mechanism 3 through the connecting rod 5 and the spring 6, ensuring the stability and reliability of the wear-resistant plate 202 during use. During the installation process, it is necessary to ensure that the connection between the wear-resistant plate 202 and the shock absorbing mechanism 3 is firm and not loose, so as to avoid falling off or damage caused by vibration or impact. The wear-resistant plate 202 can effectively protect the inner wall of the vertical mill cylinder 1 from direct impact and wear of the material, thereby extending the service life of the equipment and reducing maintenance costs. At the same time, the high-performance materials and advanced coating technology of the wear-resistant plate 202 also provide a strong guarantee for improving the wear resistance and reliability of the equipment.

[0033] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A wear-resistant protective device for a vertical mill barrel, characterized in that: The invention comprises a vertical mill barrel (1) and a wear-resistant component (2) arranged on the inner wall of the vertical mill barrel (1); the wear-resistant component (2) is provided in plurality, wherein the plurality of wear-resistant components (2) are spliced in sequence along the inner wall of the vertical mill barrel (1); the wear-resistant component (2) comprises an arc-shaped connecting plate (201) and a wear-resistant plate (202), wherein a shock-absorbing mechanism (3) is arranged between the arc-shaped connecting plate (201) and the wear-resistant plate (202); one side of the arc-shaped connecting plate (201) is fixedly connected to the inner wall of the vertical mill barrel (1), wherein the other side of the arc-shaped connecting plate (201) is fixedly connected to the shock-absorbing mechanism (3).

2. The wear-resistant protective device for a vertical mill barrel according to claim 1, characterized in that: The shock absorbing mechanism (3) comprises a shock absorbing pad (301) and a reinforcing rib (302), wherein the shock absorbing pad (301) and the reinforcing rib (302) are arranged in a staggered manner.

3. The wear-resistant protective device for a vertical mill barrel according to claim 2, characterized in that: The height of the shock-absorbing pad (301) is higher than the height of the reinforcing rib (302), wherein adjacent shock-absorbing pads (301) and reinforcing ribs (302) are bonded and fixed by a high-strength adhesive.

4. The wear-resistant protective device for a vertical mill barrel according to claim 3, characterized in that: The reinforcing rib (302) is provided with a mounting hole (4) on one side close to the wear-resistant plate (202), wherein a connecting rod (5) is provided in the mounting hole (4); one end of the connecting rod (5) is arranged in the mounting hole (4), wherein the other end of the connecting rod (5) is fixedly connected to the wear-resistant plate (202).

5. The wear-resistant protective device for a vertical mill barrel according to claim 4, characterized in that: The outer wall of the connecting rod (5) is sleeved with a spring (6), wherein one end of the spring (6) is fixedly connected to the bottom of the mounting hole (4), and the other end of the spring (6) is fixedly connected to the wear-resistant plate (202).

6. The wear-resistant protective device for a vertical mill barrel according to claim 2, characterized in that: The shock-absorbing pad (301) is made of rubber or silicone material.

7. The wear-resistant protective device for a vertical mill barrel according to claim 2, characterized in that: The reinforcing ribs (302) are made of high-strength steel.

8. The wear-resistant protective device for a vertical mill barrel according to claim 1, characterized in that: The wear-resistant plate (202) is made of a high-strength steel plate or an alloy steel plate, wherein the surface of the wear-resistant plate (202) is coated with a tungsten carbide coating or a ceramic coating.