Continuous self-generating magnetic ceramic coating in light-weight energy-saving ball mill

Abstract

The utility model discloses a continuous authigenic magnetic ceramic coating in a light-weight energy-saving ball mill, which comprises a plurality of rectangular magnetic lining plates, the magnetic lining plates are arranged on all inner wall surfaces of the ball mill except for an ore feeding port and an ore discharging port side by side, an outer ring edge is arranged at the outer edge of the front side of each magnetic lining plate, and the magnetic lining plates are arranged on the outer ring edge. The middle of the front face of the magnetic lining plate is a concave face, a semi-ellipsoid protrusion is arranged in the center of the concave face, a magnet is embedded inwards in the center of the back face of the magnetic lining plate, an iron layer is attracted to the front face of the magnetic lining plate and the front face of the outer ring edge, ceramic ball particles are embedded in the iron layer, and the iron layer and the ceramic ball particles form a waveform magnetic ceramic coating. By optimizing magnetic field distribution and special structural design, materials are effectively guided to be ground intensively, invalid collision is reduced, and the crushing efficiency is improved; and the self-generated magnetic ceramic coating is used for enhancing the wear resistance and corrosion resistance, prolonging the service life of equipment, and reducing the energy consumption and maintenance cost at the same time.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically to a lightweight and energy-saving ball mill with a continuously self-generating magnetic ceramic coating. Background Technology

[0002] In the mining and materials processing industries, ball mills are essential equipment for crushing ores and other solid materials. Traditional ball mills typically use manganese steel liners to protect the inner walls and aid the grinding process. However, these liners suffer from drawbacks such as heavy weight, high energy consumption, and rapid wear, increasing operating costs and limiting equipment lifespan. To address these challenges, researchers have developed various novel liner materials and technologies, among which magnetic ceramic coatings have attracted significant attention as an innovative solution. However, existing magnetic ceramic coatings still suffer from low material grinding efficiency, weak self-regeneration capabilities, and poor stability, failing to meet the requirements for long-term, high-efficiency operation. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight and energy-saving ball mill with a continuously self-generating magnetic ceramic coating, which has the advantages of high grinding efficiency, the ability to form a magnetic ceramic coating on its own during daily grinding, and long service life, thus solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A lightweight, energy-saving ball mill with a continuously self-generating magnetic ceramic coating includes a magnetic liner. The magnetic liner has a rectangular structure and is arranged in a plurality of units on all the inner wall surfaces of the ball mill except for the feed and discharge ports. The outer edge of the front side of the magnetic liner has an outer ring edge, and the middle part of the front side of the magnetic liner is concave. A semi-ellipsoidal protrusion is located at the center of the concave surface. A magnet is embedded in the center of the back side of the magnetic liner. An iron layer is adsorbed on the front side of the magnetic liner and the outer ring edge. Ceramic ball particles are embedded in the iron layer. The iron layer and the ceramic ball particles constitute a wave-shaped magnetic ceramic coating.

[0006] Preferably, the magnet is attached to the inner wall of the ball mill, and the magnetic liner is magnetically connected to the inner wall of the ball mill through the magnet.

[0007] Preferably, the semi-ellipsoidal protrusion is 2cm high, and the outer edge is 1cm higher than the plane of the magnetic liner.

[0008] Preferably, the magnetic field strength on the front of the magnetic liner gradually decreases from the outer edge towards the semi-ellipsoidal protrusion, with the magnetic field strength changing at gradients of 3000Gs, 2000Gs, 1400Gs, 1000Gs, and 800Gs, respectively.

[0009] Preferably, the waveform magnetic ceramic coating is in the form of a crisscrossing grid, and the thickness of the waveform magnetic ceramic coating gradually decreases from the outer edge towards the semi-ellipsoidal protrusion.

[0010] Preferably, the thickness of the highest point of the wave-shaped magnetic ceramic coating is 2.8 cm, the thickness of the lowest point is 0.1 cm, and the highest point of the wave-shaped magnetic ceramic coating is level with the highest point of the semi-ellipsoidal protrusion.

[0011] Preferably, the geometric dimensions of the magnetic liner are: 18cm in length, 10cm in width, and 6cm in height.

[0012] Preferably, the geometric dimensions of the outer edge are: 0.3cm wide and 1cm high.

[0013] Preferably, the geometric dimensions of the magnet are: 16cm in length, 8cm in width, and 2cm in height.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model significantly improves the grinding efficiency of a ball mill through specific design. The magnetic field strength on the front of the magnetic liner gradually weakens from the outer edge towards the semi-ellipsoidal protrusion, guiding the material to concentrate in the optimal grinding area and reducing ineffective collisions. The wave-shaped magnetic ceramic coating has a crisscrossing grid pattern with gradually changing thickness, optimizing the material flow direction and speed and enhancing effective control over the material. The concave surface in the middle of the magnetic liner and the semi-ellipsoidal protrusion in the center concentrate the material and promote its tumbling, increasing the chance of interaction. The ceramic ball particles embedded in the iron layer not only improve wear resistance but also provide additional impact points, further assisting in the refinement of the material. These structural designs work together to enable more effective control and guidance of the material during the grinding process, thereby improving the overall crushing efficiency.

[0016] 2. The waveform magnetic ceramic coating of this utility model is composed of an iron layer and ceramic ball particles. This structure not only enhances wear resistance, but also automatically replenishes the parts consumed by wear, reducing the need for regular replacement or repair, lowering maintenance costs and downtime, and improving production continuity and economic benefits. After 3 to 6 months of operation, the iron is gradually adsorbed to form a new iron layer, and at the same time, the ceramic ball particles will be embedded and adhered to the gaps between the magnetic liner plates, thus maintaining a stable protective layer and greatly extending the overall service life of the equipment. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front of the magnetic liner of this utility model;

[0018] Figure 2 This is an isometric view of the back of the magnetic liner of this utility model;

[0019] Figure 3 This is a schematic diagram of the waveform magnetic ceramic coating and magnetic backing plate of this utility model.

[0020] In the diagram: 1. Magnetic backing plate; 2. Semi-ellipsoidal protrusion; 3. Outer edge; 4. Magnet; 5. Wave-shaped magnetic ceramic coating; 6. Ceramic sphere particles; 7. Iron layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the problems of low material grinding efficiency, weak self-generating ability, and poor stability in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-3 ;

[0023] A lightweight and energy-saving ball mill with a continuously self-generating magnetic ceramic coating includes a magnetic liner 1. The magnetic liner 1 has a rectangular structure and its geometric dimensions are: 18cm long, 10cm wide, and 6cm high. Several magnetic liners 1 are arranged on all the inner wall surfaces of the ball mill except for the feed port and discharge port.

[0024] A magnet 4 is embedded in the center of the back of the magnetic liner 1. The magnet 4 has the following dimensions: length 16cm, width 8cm, and height 2cm. The magnet 4 is attached to the inner wall of the ball mill, and the magnetic liner 1 is magnetically connected to the inner wall of the ball mill through the magnet 4.

[0025] The outer edge 3 is provided on the outer edge of the front side of the magnetic backing plate 1. The geometric dimensions of the outer edge 3 are: 0.3cm wide and 1cm high.

[0026] The magnetic liner 1 has a concave center on its front side, with a semi-ellipsoidal protrusion 2 at the center of the concave surface. The semi-ellipsoidal protrusion 2 is 2 cm high. This special shape can better concentrate the material, reduce material dispersion, and ensure that the material can gather in the most favorable place for crushing. At the same time, the semi-ellipsoidal protrusion 2 can also promote the rolling of the material, increase the chance of interaction between materials, and promote the fine crushing process.

[0027] The magnetic liner 1 and the outer edge 3 are coated with an iron layer 7, in which ceramic spheres 6 are embedded. The iron layer 7 and the ceramic spheres 6 together form a wave-shaped magnetic ceramic coating 5. The composite material formed by the iron layer 7 and the ceramic spheres 6 not only improves wear resistance, but the presence of the ceramic spheres 6 also provides additional impact points for the material, helping it reach the required particle size more quickly. In addition, it can also help adjust the material flow direction and optimize the material distribution throughout the grinding process.

[0028] The magnetic field strength on the front of the magnetic liner 1 gradually decreases from the outer edge 3 toward the semi-ellipsoidal protrusion 2, with the magnetic field strength gradients being 3000Gs, 2000Gs, 1400Gs, 1000Gs, and 800Gs, respectively.

[0029] The change in magnetic gradient helps to create a specific magnetic field environment. When the material enters the ball mill, it will be subjected to different degrees of magnetic force due to the different magnetic field strength at different locations. This will effectively guide the material to the optimal grinding area, which will reduce the disorderly movement of the material in the non-effective working area and reduce the chance of ineffective collisions.

[0030] The corrugated magnetic ceramic coating 5 is arranged in a crisscrossing grid pattern. The thickness of the corrugated magnetic ceramic coating 5 gradually decreases from the outer edge 3 towards the semi-ellipsoidal protrusion 2. The thickness of the corrugated magnetic ceramic coating 5 is 2.8 cm at its highest point and 0.1 cm at its lowest point. The highest point of the corrugated magnetic ceramic coating 5 is level with the highest point of the semi-ellipsoidal protrusion 2. The height difference of the corrugated magnetic ceramic coating 5 is greater than the crest height of a conventional corrugated manganese steel liner, and the shape of the grid strips closely resembles the upper convex portion of a sine wave. This structural design can alter the direction and speed of material flow, causing the material to concentrate more at the optimal grinding location, enhancing effective material control and further improving grinding efficiency.

[0031] The formation process of the wave-shaped magnetic ceramic coating 5 is as follows: A magnetic liner 1 is laid on the inner wall of the ball mill to form a magnetic liner ball mill; iron, ceramic ball particles 6, and steel balls are added to the magnetic liner ball mill to form a magnetic ceramic ball mill with initial ball loading; the magnetic ceramic ball mill with initial ball loading is connected to the production process for conventional grinding operations. After an adsorption period of 3 to 6 months, the iron is gradually adsorbed by the magnetic liner 1 and the outer edge 3 to form an iron layer 7. The ceramic ball particles 6 fill the gaps, grooves, and depressions between the magnetic liner 1 in the form of being stuck, embedded, and adhered, and form an integral part with the iron layer 7, thus naturally forming the wave-shaped magnetic ceramic coating 5. The magnetic liner 1 will continuously adsorb the iron to generate the wave-shaped magnetic ceramic coating 5 to offset the wear and tear during the production process, thus maintaining a stable wave-shaped magnetic ceramic coating 5 for a long time.

[0032] Working principle: First, a magnetic liner 1 is laid on the inner wall of the ball mill. The magnetic liner 1 is magnetically connected to the inner wall of the ball mill through magnets 4 embedded on its back. The front of the magnetic liner 1 has an outer ring edge 3 and a semi-ellipsoidal protrusion 2 at the center of the concave surface, forming a specific magnetic field distribution. When iron material and ceramic ball particles 6 are added to the ball mill, during the 3 to 6 months of operation, the iron is adsorbed by the magnetic liner 1 and its outer ring edge 3 to form an iron layer 7, while the ceramic ball particles 6 are embedded and adhered to the iron layer 7, together forming a wave-shaped magnetic ceramic coating 5. The magnetic liner 1 continuously adsorbs iron, so that even if wear occurs during production, it can be automatically replenished, keeping the wave-shaped magnetic ceramic coating 5 in a stable state.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating, comprising a magnetic liner (1), characterized in that, The magnetic liner (1) has a rectangular structure. Several magnetic liners (1) are arranged on all the inner wall surfaces of the ball mill except for the feed port and the discharge port. The outer edge (3) is provided on the outer edge of the front side of the magnetic liner (1). The middle part of the front side of the magnetic liner (1) is concave. A semi-ellipsoidal protrusion (2) is provided at the center of the concave surface. A magnet (4) is embedded in the center of the back side of the magnetic liner (1). An iron layer (7) is adsorbed on the front side of the magnetic liner (1) and the outer edge (3). Ceramic ball particles (6) are embedded in the iron layer (7). The iron layer (7) and the ceramic ball particles (6) constitute a wave-shaped magnetic ceramic coating (5).

2. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 1, characterized in that, The magnet (4) is attached to the inner wall of the ball mill, and the magnetic liner (1) is magnetically connected to the inner wall of the ball mill through the magnet (4).

3. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 2, characterized in that, The semi-ellipsoidal protrusion (2) is 2cm high, and the outer edge (3) is 1cm higher than the plane of the magnetic liner (1).

4. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 3, characterized in that, The magnetic field strength of the front side of the magnetic liner (1) gradually decreases from the outer edge (3) towards the semi-ellipsoidal protrusion (2), and the gradient of the magnetic field strength is 3000Gs, 2000Gs, 1400Gs, 1000Gs and 800Gs respectively.

5. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 4, characterized in that, The waveform magnetic ceramic coating (5) is in the form of a crisscrossing grid, and the thickness of the waveform magnetic ceramic coating (5) gradually decreases from the outer edge (3) towards the semi-ellipsoidal protrusion (2).

6. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 5, characterized in that, The highest point of the wave-shaped magnetic ceramic coating (5) is 2.8 cm thick, and the lowest point is 0.1 cm thick. The highest point of the wave-shaped magnetic ceramic coating (5) is level with the highest point of the semi-ellipsoidal protrusion (2).

7. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 6, characterized in that, The geometric dimensions of the magnetic liner (1) are: length 18cm, width 10cm, and height 6cm.

8. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 7, characterized in that, The geometric dimensions of the outer edge (3) are: 0.3cm wide and 1cm high.

9. The lightweight, energy-saving ball mill internal continuously self-generating magnetic ceramic coating according to claim 8, characterized in that, The geometric dimensions of the magnet (4) are: length 16cm, width 8cm, and height 2cm.

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