Grinding ring for rolling equipment and rolling equipment

Abstract

The invention relates to the technical field of rolling equipment, and discloses a grinding ring for rolling equipment and the rolling equipment. The grinding ring for the rolling equipment comprises a ring base body, and the inner wall face of the ring base body is provided with a rolling working face used for being matched with a rolling roller to achieve rolling. The ring base body is provided with a material falling stopping structure, and the material falling stopping structure is a protruding annular object on the lower portion of the rolling working face so that the material flow speed can be rapidly reduced, and then the thickness of a material layer and the rolling frequency are increased. By means of the rolling and slow descending integrated structure, the material residence time can be prolonged, the grinding quality can be improved, damage caused by stress concentration can be avoided, the service life is prolonged, production economy and equipment reliability are both considered, refined machining is achieved, and the problems that an existing rolling ring is not prone to damage are solved. The replacement cost is high, the material residence time is insufficient, and the slow descending effect is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of vertical rolling equipment, and in particular, to a grinding ring for rolling equipment. In addition, the present invention also relates to a rolling equipment comprising the grinding ring for rolling equipment. Background Art

[0002] Existing Raymond Mill mills typically feature a simple ring-shaped design. Traditional rings are cylindrical on both the inside and outside, or cylindrical on the outside and arc-shaped on the inside. This design presents significant drawbacks: rapid wear and damage to the rings leads to high maintenance costs and prolonged downtime. Furthermore, the material's residence time within the rings directly impacts crushing efficiency. Traditional designs allow material to quickly pass through the discharge port, resulting in inadequate compaction. This, in turn, reduces production capacity, increases energy consumption, and compromises the uniformity of the finished product's particle size. Summary of the Invention

[0003] The present invention provides a grinding ring and rolling equipment for rolling equipment. Through the integrated structure of rolling and local material stopping, the material retention time and grinding quality can be improved, and damage caused by stress concentration can be avoided, thereby extending the service life. It takes into account production economy and equipment reliability, and realizes refined processing to solve the technical problems of existing rolling rings that are easy to damage, have high replacement costs, insufficient material retention time, low output, and high power consumption.

[0004] According to one aspect of the present invention, a grinding ring for rolling equipment is provided, comprising a ring base, the inner wall surface of the ring base being provided with a rolling working surface for cooperating with a rolling roller to achieve rolling; the ring base being provided with a material drop-off structure, the material drop-off structure being a protruding annular object at the bottom of the rolling working surface, so as to sharply reduce the material flow rate, thereby increasing the thickness of the material layer and increasing the number of rolling times.

[0005] Furthermore, the rolling working surface is a vertical surface, a slope surface, a curved surface or a wavy surface.

[0006] Furthermore, the wall surface of the ring base is formed by any combination of vertical surfaces, slope surfaces, arc-shaped surfaces or wavy surfaces.

[0007] Furthermore, the rolling working surface adopts a combined structural working surface of a multi-stage rolling working surface and a material stopping structure.

[0008] Furthermore, the height and / or width of the multi-stage rolling working surface are the same; or the height and / or width of the multi-stage rolling working surface gradually decreases from the feed end to the discharge end of the ring base; or the height and / or width of the multi-stage rolling working surface gradually increases from the feed end to the discharge end of the ring base.

[0009] Furthermore, the rolling working surface adopts multiple vertical surfaces, which are connected and combined in a broken line shape from the feed end to the discharge end of the ring base; or the rolling working surface adopts multiple arc surfaces, which are connected and combined in a broken line shape from the feed end to the discharge end of the ring base.

[0010] Furthermore, the rolling working surface adopts multiple arc surfaces, which are connected and combined in sequence from the feeding end to the discharging end of the ring base; the multiple arc surfaces are arranged with gradually changing sizes from the feeding end to the discharging end of the ring base.

[0011] Furthermore, the material falling prevention structure is arranged to extend radially inwardly along the ring base.

[0012] Furthermore, the material falling prevention structure is arranged at multiple locations extending radially inwardly along the ring base.

[0013] Furthermore, the upper surface of the material stopping structure is a plane for contacting the surface of the rolling roller.

[0014] Furthermore, the material falling prevention structure may adopt a combination of the above-mentioned multiple structures or a combination of other curved surfaces.

[0015] Furthermore, the outer wall surface of the ring base is configured as a conical surface.

[0016] According to another aspect of the present invention, a rolling device is provided, which includes the grinding ring for the rolling device.

[0017] The present invention has the following beneficial effects: The grinding ring for rolling equipment of this invention utilizes an integrated rolling and anti-drop structure. The anti-drop structure forms a contact support with the rolling roller surface, subjecting the material to continuous rolling pressure as it falls due to gravity. This design slows the material's vertical drop, thickens the material layer, and prolongs its residence time within the rolling pressure zone, thereby increasing the number of times the material particles are rolled and ensuring they are fully compacted. Its primary advantages include significantly increasing production and reducing power consumption and wear of consumable parts. It also significantly reduces breakage of moving and consumable parts. The uniformity of finished product fineness can also be improved. In traditional equipment, the rapid drop of material can easily cause instantaneous impact loads, leading to direct collisions between the grinding ring and the roller, resulting in localized stress concentration and severe wear. The material stop mechanism thickens the material layer, cushioning the material's falling speed and kinetic energy, dissipating the impact force, reducing equipment vibration, minimizing the tendency for breakage and cracking between the grinding ring and the roller, and reducing the noise from direct collisions between them. Traditional grinding ring discharge ends are simply designed, resulting in insufficient or inadequate crushing of material particles due to the rapid passage of material. The material stop mechanism addresses this technical shortcoming through mechanical constraints, significantly improving the crushing effect on high-hardness materials such as quartz and metal ores. The vibration damping and thick material layer characteristics of the material stop mechanism alleviate this problem, reducing maintenance frequency and costs. By extending the crushing time, the number of material frictions against the grinding ring per unit time is reduced, which can reduce the wear rate of the grinding ring working surface. Furthermore, the uniform crushing pressure distribution avoids localized overheating or phase change stress, extending component life. By designing the inclination angle of the material stop structure or adjusting its support pressure, the processing requirements of different material properties (such as viscosity and hardness) can be adapted. This reduces the fluctuation range of the finished product fineness, meeting high-precision industrial standards. With the addition of the stop structure, when the rolling roller is constrained to a set gap with the grinding ring, it facilitates smooth operation. Without the stop structure, this set gap will prevent the rolling roller from functioning properly. This structure of setting the gap can significantly reduce equipment wear, damage and noise, and can also greatly speed up the revolution speed of the rolling roller, or apply greater pressure to the rolling roller. Similarly, the anti-drop structure can make the flow rate of the material drop suddenly, thereby slowing down the flow rate. The slower the flow rate, the thicker the material and the more times the particles are rolled. This can significantly improve the rolling efficiency. The higher the rolling efficiency, the higher the qualified fine powder in the material. The more fine powder is selected by the powder selection device, the less coarse material is left to feed the rolling roller. This can significantly increase the amount of material fed into the equipment, thus achieving the main goal of greatly increasing production capacity or even doubling production capacity, and significantly reducing energy consumption and consumption of wearing parts. This mainly solves the problems of low efficiency and production capacity of traditional rolling equipment, high energy consumption and loss of wearing parts, while taking into account production economy and equipment reliability, reflecting the trend of industrial equipment towards refinement and intelligence.

[0018] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 2. It is a structural schematic diagram of a grinding ring for a slope-stopping rolling equipment according to a preferred embodiment of the present invention; Figure 2 2. It is a structural schematic diagram of a grinding ring for a vertical stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 3 2. It is a structural schematic diagram of a grinding ring for a wave-type rolling equipment according to a preferred embodiment of the present invention; Figure 4 2. It is a structural schematic diagram of a grinding ring for a multi-stage cambered surface stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 5 This is a schematic structural diagram of a grinding ring for a plane stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 6 It is a structural schematic diagram of a grinding ring for a combined plane anti-drop type rolling equipment according to a preferred embodiment of the present invention.

[0020] Legend: 100. Ring base; 200. Rolling working surface; 300. Material falling prevention structure; 400. Screw. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0022] Figure 1 2. It is a structural schematic diagram of a grinding ring for a slope-stopping rolling equipment according to a preferred embodiment of the present invention; Figure 2 2. It is a structural schematic diagram of a grinding ring for a vertical stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 3 2. It is a structural schematic diagram of a grinding ring for a wave-type rolling equipment according to a preferred embodiment of the present invention; Figure 4 2. It is a structural schematic diagram of a grinding ring for a multi-stage cambered surface stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 5 This is a schematic structural diagram of a grinding ring for a plane stop-drop type rolling equipment according to a preferred embodiment of the present invention; Figure 6 It is a structural schematic diagram of a grinding ring for a combined plane anti-drop type rolling equipment according to a preferred embodiment of the present invention.

[0023] like Figure 1 and Figure 5As shown, the grinding ring for the rolling equipment of this embodiment includes a ring base 100. The inner wall surface of the ring base 100 is provided with a rolling working surface 200 for cooperating with a rolling roller to achieve rolling; the ring base 100 is provided with a material stopping structure 300. The material stopping structure 300 is a protruding ring-shaped object at the bottom of the rolling working surface 200. The upper end surface of the material stopping structure 300 not only has a stopping effect on the material, but also has some functions of the rolling working surface 200, that is, it has a certain auxiliary grinding function. The material stopping structure 300 stops the material from falling, thereby extending the rolling time and number of times of the material. The grinding ring for the rolling equipment of the present invention adopts a structure that integrates rolling and stopping. The material drop prevention structure 300 forms a close fit with the rolling roller surface, subjecting the material to continuous rolling pressure as it falls due to gravity. This design slows the material's vertical drop, thickens the material layer, and prolongs its residence time within the rolling pressure zone, thereby increasing the number of times the material particles are rolled and ensuring they are fully crushed. Its main advantages are significantly increasing production and reducing power consumption and the consumption of wearing parts. It also significantly reduces the risk of breakage of moving and wearing parts. The uniformity of the finished product's fineness can also be improved. In conventional equipment, the rapid drop of material can easily cause instantaneous impact loads, leading to direct collisions between the grinding ring and the roller, resulting in localized stress concentration and severe wear. The material stop structure 300 thickens the material layer, cushioning the material's falling speed and kinetic energy, dissipating the impact force, reducing equipment vibration, minimizing the tendency for breakage and cracking between the grinding ring and the roller, and reducing the noise associated with direct collisions. Conventional grinding ring discharge ends feature simple designs, resulting in insufficient or inadequate crushing of material particles due to rapid material flow. The material stop structure 300 addresses this technical shortcoming through mechanical constraints, significantly improving the crushing efficiency of high-hardness materials such as quartz and metal ores. The vibration damping and thick material layer characteristics of the material stop structure 300 mitigate these issues, reducing maintenance frequency and costs. By extending the crushing time, the number of material friction events per unit time on the grinding ring decreases, reducing the wear rate of the grinding ring's working surface. Furthermore, the uniform crushing pressure distribution prevents localized overheating and phase change stress, extending component life. By designing the inclination angle of the material stop structure 300 or adjusting its support pressure, the material can be adapted to the processing requirements of different material properties (such as viscosity and hardness). This reduces the fluctuation range of the finished product fineness, meeting high-precision industrial standards. With the addition of the stop structure, when the rolling roller is constrained to a set gap with the grinding ring, it facilitates smooth operation. Without the stop structure, this set gap would prevent the rolling roller from functioning properly.This structure of setting the gap can significantly reduce equipment wear, damage and noise, and can also greatly speed up the revolution speed of the rolling roller, or apply greater pressure to the rolling roller. Similarly, the anti-drop structure can make the flow rate of the material drop suddenly, thereby slowing down the flow rate. The slower the flow rate, the thicker the material and the more times the particles are rolled. This can significantly improve the rolling efficiency. The higher the rolling efficiency, the higher the qualified fine powder in the material. The more fine powder is selected by the powder selection device, the less coarse-grained material is left to feed the rolling roller. This can significantly increase the amount of material fed into the equipment, thus achieving the main goal of increasing production capacity and reducing energy consumption and consumption of wearing parts. This mainly solves the problems of low efficiency and production capacity of traditional rolling equipment, high energy consumption and loss of wearing parts, while taking into account production economy and equipment reliability, reflecting the trend of industrial equipment towards refinement and intelligence.

[0024] like Figures 1 to 6 As shown, in this embodiment, the rolling working surface 200 is a vertical surface, a sloped surface, an arc-shaped surface, or a wavy surface. The vertical surface, through a rigid vertical structure, forms uniform contact with the rolling roller around the entire circumference, allowing the rolling force to be directly transmitted in the vertical direction, avoiding the loss of effective rolling force due to the inclined surface force component. For example, under high-pressure conditions (such as metal ore crushing), the vertical surface can withstand higher impact loads, ensuring that the material is instantly crushed and reducing the proportion of unbroken particles. The steep sidewalls of the vertical surface can exert a lateral restraining force on the material, preventing it from slipping and escaping along the tangential direction during the rolling process. Combined with the material drop-stop structure 300 of the grinding ring, this further increases the material thickness and prolongs the material retention time in the rolling zone (for example, when processing low-friction materials such as talcum powder), ensuring increased production capacity and compliance with fineness standards. The straight contour of the vertical surface simplifies the stress distribution path and avoids local stress concentration caused by complex curved surfaces. For example, during continuous operation, the vertical surface can reduce the risk of microcrack propagation caused by cyclic loads, thereby extending the life of the grinding ring. The inclined design of the slope surface can guide the material, so that the material undergoes multiple stages of crushing during the step-by-step falling process. For example, in the crushing of layered materials such as coal gangue, the slope surface can achieve the graded processing of "pre-crushing-fine crushing" by applying pressure step by step, thereby reducing instantaneous energy consumption; the slope angle of the slope surface can automatically adjust the contact area as the rolling roller wears. For example, when the outer diameter of the rolling roller decreases due to wear, the inclined surface of the slope surface can still maintain a close support, avoiding the problem of missing rolling due to the increase in the gap, and ensuring the stability of the rolling effect; the inclined structure of the slope surface can convert part of the vertical impact force into a tangential component force, which can be dispersed and absorbed by the ring matrix, thereby reducing the overall vibration amplitude of the equipment, and can be applied to high-speed working conditions (such as ultra-fine crushing of ceramic raw materials), reducing fatigue damage to bearings and transmission components. The upper surface of the material anti-drop structure 300 not only has the function of piling up materials, but also cooperates with the rolling roller to have a certain auxiliary grinding function. Figure 3 and Figure 4The embodiment also has this auxiliary grinding function. The arc surface design, the arc surface and the curved surface of the grinding roller fit more closely, can guide the material to flow along a specific trajectory, and enhance the extrusion effect; the curvature design of the arc surface can disperse the impact force during the grinding process, can effectively extend the life of the grinding ring, and reduce cold cracks caused by stress concentration. The wavy surface design; the concave and convex structure of the wavy surface can increase the thickness of the material, thereby significantly increasing the production capacity and the shearing effect during the grinding process. It is also suitable for scenarios that require high-fineness output (such as ultra-fine powder processing). By extending the residence time of the material between the grinding ring and the grinding roller, the wavy surface can significantly improve the crushing efficiency; the undulating design of the wavy surface can partially change the gap between the grinding roller and the grinding ring, forming a multi-level pressure zone, thereby flexibly controlling the discharge particle size. The design of vertical, sloped, curved or wavy surfaces covers a wide range of processing needs from brittle to sticky materials through the dual improvements of mechanical transmission path optimization and material movement control; the unit energy consumption is reduced through graded rolling or high-pressure instantaneous crushing; the structural life is extended and the maintenance cost is reduced, forming a synergistic effect with the material stop structure 300, and together they build a core component system of high-yield, low-consumption and long-life rolling equipment.

[0025] like Figure 1 and Figure 2 As shown, in this embodiment, the rolling working surface 200 adopts a combined structural working surface of a multi-stage rolling working surface and a material falling prevention structure 300. By designing the grinding roller and the grinding ring as a combined structural working surface of a multi-stage rolling working surface and a material anti-fall structure 300, the material is blocked by the multi-stage rolling working surface and the material anti-fall structure 300 during the rolling process, the thickness of the material layer is increased and the sliding speed is significantly reduced, which changes the material thickness and flow path of the traditional plane grinding ring, so that the flow of the rolled material is retained step by step between the combined structural working surfaces, avoiding insufficient rolling caused by rapid sliding; the combined structural working surface of the multi-stage rolling working surface and the material anti-fall structure 300 increases the thickness of the material layer and slows down the material flow, and prolongs the residence time of the material between the grinding roller and the grinding ring, so that the material can be repeatedly rolled. For materials with higher hardness, sufficient grinding can improve the fineness and uniformity of the finished product; at the same time, due to the increase in processing volume per unit time (optimization of material residence time), the overall output of the equipment is significantly improved; the combined structural working surface converts more mechanical energy into effective rolling energy by reducing ineffective sliding friction, further reducing energy consumption per unit output.

[0026] like Figure 1 and Figure 2As shown, in this embodiment, the height and / or width of the multi-stage rolling working surface are the same; or the height and / or width of the multi-stage rolling working surface gradually decreases from the feed end to the discharge end of the ring base 100; or the height and / or width of the multi-stage rolling working surface gradually increases from the feed end to the discharge end of the ring base 100. The design of the multi-stage rolling working surface with the same height and width, through the evenly distributed multi-stage rolling working surface, maintains a relatively stable sliding speed of the material in the grinding chamber, ensures the consistency of the rolling force in the horizontal direction, avoids local over-rolling or material accumulation, and is suitable for scenarios with high requirements for the uniformity of the finished product fineness. The height / width of the multi-stage rolling working surface gradually decreases from the feed end to the discharge end. As the material moves from the feed end to the discharge end, the gradually shrinking structure will slow down the material's sliding speed and prolong its residence time between the grinding roller and the grinding ring, thereby improving the grinding efficiency and the fineness of the finished product. Larger particles first undergo high-intensity grinding at the feed end, and the subsequent smaller structure can perform secondary refinement on the crushed material to achieve a multi-stage crushing effect, which is particularly suitable for processing mixed materials with large differences in hardness. The height / width gradually increases from the feed end to the discharge end. The gradually increasing step structure can speed up the flow of materials to the discharge end, reduce energy waste caused by excessive grinding, and increase output per unit time. It is suitable for applications with high output requirements and a certain particle size range (such as coarse powder preparation). The larger discharge end space can reduce the retention of fine powder at the end of the grinding chamber, avoiding equipment blockage or vibration problems caused by material accumulation. By rationally designing the step parameters, the impact wear of large pieces of material on the grinding ring and grinding roller can be reduced (combined with the radial force buffering effect of the balanced pressure spring); the above-mentioned different change modes can be combined and adjusted according to the material properties (such as hardness and moisture) and the finished product requirements (such as fineness and output). For example, a larger multi-stage rolling working surface is used at the feed end to handle the initial crushing, and the multi-stage rolling working surface is gradually reduced at the discharge end to achieve fine grinding; by dynamically regulating the material flow and rolling force distribution, the comprehensive goals of energy saving, high yield and controllable fineness can be ultimately achieved; this multi-stage rolling working surface structural design can, to a certain extent, achieve a balance between fineness and efficiency.

[0027] like Figure 1 and Figure 2 As shown, in this embodiment, the rolling working surface 200 adopts multiple vertical surfaces or multiple inclined surfaces, which are connected in sequence in a broken line from the feeding end to the discharging end of the ring base 100; or as shown in FIG. Figure 3 、 Figure 4As shown, the rolling surface 200 utilizes multiple curved surfaces, connected end-to-end from the feed end of the ring base 100. This zigzag or multi-arc structure disperses the concentrated load typically borne by a continuous flat surface or single curved surface to multiple junctions. This alters the material flow path and feeding method, effectively reducing the risk of cracks caused by the superposition of casting stresses. The continuous connection of these zigzag or curved surfaces increases the material's residence time in the rolling zone, and through multiple changes in the rolling path, improves the efficiency of hard particle crushing, and thus production capacity. The multi-segment working surface can adapt to high-frequency impact loads during the rolling process (such as instantaneous pressure when the material hardness suddenly changes) through the elastic buffering effect of the joints, reducing the probability of crack initiation; the multi-segment working surface design can achieve graded crushing function and reduce the return rate through the combination of planes / curved surfaces with different inclination angles (such as large-angle coarse crushing at the feed end and small-angle fine grinding at the discharge end); the multi-segment surface design can adapt to different material properties (such as changes in the ratio of clay and quartz sand) by adjusting the joint angle (for example, a dynamic adjustment range of 0°-30°), realizing flexible production of "one machine for multiple uses".

[0028] like Figure 4 As shown, in this embodiment, the rolling working surface 200 utilizes multiple curved surfaces, which are connected end to end from the feed end of the ring base 100. The multiple curved surfaces are arranged in a gradient of size from the feed end to the discharge end of the ring base 100. This connection design disperses the concentrated stress of a traditional single curved surface to the joints of each segment. Combined with the gradient of size, this design makes the stress distribution more consistent with the flow of the material. For example, the impact of large particles is absorbed by the large curved surface at the feed end, preventing stress from being transmitted backward. High-frequency vibration is converted into a tangential force component through the gradient of curvature, reducing vertical structural fatigue. Gradual crushing can reduce the number of repeated crushings and reduce energy consumption per unit of output by 15%-20%. The gradual change in the size of the curved surface (e.g., the radius of curvature or height changes from large to small) forms a multi-stage crushing chamber. The feed end features a large curved surface for coarse crushing of the initial material, utilizing the larger radius of curvature to disperse the impact load and avoid structural damage caused by the instantaneous impact of large particles. The discharge end features a small curved surface, which uses a gradually decreasing radius of curvature to enhance local crushing pressure, achieving fine grinding and ensuring uniform fineness of the finished product. Within the progressively smaller curved cavity, the material undergoes a multi-stage process of "pre-crushing, semi-fine grinding, and fine grinding," reducing the return rate and the overall fineness fluctuation range by 30%-50%. The contracting cavity formed by the gradual change in the size of the curved surface accelerates the flow of material to the discharge end, preventing the accumulation of fine powder at the end of the grinding chamber, while also reducing vibration and the risk of blockage. The gradually changing curved surface compensates for thermal expansion differences through gap design, preventing the propagation of microcracks caused by localized uneven heating.

[0029] Figure 6 and Figure 1 The functions and appearance are similar, but the difference is Figure 6The rolling working surface 200 only uses one inclined surface, and its structure is Figure 1 Simpler, but the basic effect is the same Figure 1 Similarly, the protruding ring on which the material falling prevention structure 300 is attached is independently manufactured and assembled into one piece by screws 400, which is easy to manufacture and can be reused to reduce operating costs.

[0030] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, in these embodiments, the material drop prevention structure 300 is arranged along the radial inward extension of the ring base 100. Optionally, the material drop prevention structure 300 is arranged at multiple locations along the radial inward extension of the ring base 100. The radially inward-extending material stop 300 lengthens the material flow path and slows down the material's downward velocity, increasing the material's residence time in the crushing zone between the grinding ring and roller, resulting in more complete grinding and improved grinding efficiency. The reduced material flow creates a thicker material layer, thereby reducing the impact forces generated by the equipment's sudden high-load operation. By optimizing force distribution, the material stop 300 indirectly reduces the wear rate of the grinding ring and roller. The material stop 300, combined with the closed-circuit system, maintains a dynamic balance between airflow and material within the grinding chamber, preventing efficiency fluctuations caused by airflow disturbances. This stability contributes to continuous production and high yields. For materials with varying hardness and moisture content (e.g., Mohs hardness below 7 and moisture content below 10%), the material stop 300 can be adjusted by adjusting its radial extension angle or density to flexibly meet grinding requirements, enhancing the equipment's versatility. This physical path optimization comprehensively improves grinding efficiency, product quality, and equipment durability, offering a solution that balances energy conservation and high productivity. These solutions can also be implemented in any combination.

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, in these embodiments, the upper surface of the material-fall-stopping structure 300 is a flat surface for contact with the rolling roller surface. Optionally, the upper surface of the material-fall-stopping structure 300 is a horizontal plane. The upper surface of the material-fall-stopping structure 300 is a horizontal plane (with a 180° taper angle). This plane forms uniform contact with the rolling roller surface around the entire circumference, providing stable support and preventing lateral material displacement during compaction, achieving leak-proof compaction. The horizontal plane has no tilted guide, allowing the material to naturally descend under gravity, extending its residence time in the compaction zone and making it suitable for fully crushing high-hardness materials (such as metal ores). The contact surface provides balanced pressure distribution, reducing localized wear hotspots and extending component life. This structure is suitable for applications requiring high stability and uniform compaction, such as coarse ore crushing or high-precision particle size control. Optionally, the upper surface of the material-fall-stopping structure 300 is a conical plane. Optionally, the upper surface of the material-fall-stopping structure 300 is a conical plane with a taper angle of 140° to 180°. The upper surface of the material anti-fall structure 300 adopts a conical plane (140°~180°). The acute angle formed by the conical plane and the rolling working surface (i.e. when the cone angle is less than 180°) can slow down the material's sliding speed, increase the material's residence time in the grinding ring area, and form a "buffer zone" through geometric constraints, so that the material can be initially dispersed and pre-compressed before rolling, avoiding local overload or uneven grinding caused by accumulation; the upward structure of the conical plane forces the material to enter the rolling area along a specific path, reducing material splashing caused by centrifugal force. Too steep a cone angle (such as <140°) will cause excessive accumulation of materials, exceeding the instantaneous processing capacity of the grinding roller, causing blockage problems; too long a material residence time will lead to increased grinding resistance, increased equipment energy consumption, and at the same time aggravated wear rates of the grinding roller and grinding ring; the sharp cone angle design may cause the grinding ring to bear higher alternating stress locally, such as cracks in the grinding ring, which may shorten the grinding ring life by about 40%. Among them, Figure 1 、 Figure 2 and Figure 4 To reduce manufacturing costs, the outer diameter of the ring base 100 can be changed to a tapered shape as shown in the figure.

[0032] The rolling equipment of this embodiment includes the grinding ring for the rolling equipment.

[0033] Matters not covered by the present invention are known technologies.

[0034] The various technical features of the above embodiments, including curved structures of other shapes, can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that a person skilled in the art would be able to make numerous modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0036] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A grinding ring for a rolling equipment, comprising a ring base (100), characterized in that: The inner wall surface of the ring base (100) is provided with a rolling working surface (200) for cooperating with a rolling roller to achieve rolling; The ring base (100) is provided with a material drop-stopping structure (300), which is a protruding ring-shaped object at the bottom of the rolling working surface (200) to rapidly reduce the material flow rate, thereby increasing the thickness of the material layer and the number of rolling times.

2. The grinding ring for rolling equipment according to claim 1, characterized in that: The rolling working surface (200) is a vertical surface, a sloped surface, a curved surface or a wavy surface; or The wall surface of the ring base (100) is formed by any combination of vertical surfaces, slope surfaces, arc-shaped surfaces or wavy surfaces.

3. The grinding ring for rolling equipment according to claim 2, characterized in that: The rolling working surface (200) adopts a combined structural working surface of a multi-stage rolling working surface and a material falling prevention structure (300).

4. The grinding ring for rolling equipment according to claim 3, characterized in that: The height and / or width of the multi-level rolling surface are the same; or The height and / or width of the multi-stage rolling working surface gradually decreases from the feeding end to the discharging end of the ring base (100); or The height and / or width of the multi-stage rolling working surface gradually increases from the feeding end to the discharging end of the ring base (100).

5. The grinding ring for rolling equipment according to claim 1, characterized in that: The rolling operation surface (200) is composed of a plurality of vertical surfaces, which are connected in sequence in a broken line from the feeding end to the discharging end of the ring base (100); or The rolling operation surface (200) adopts a plurality of arc-shaped surfaces, which are formed by connecting the feeding end of the ring base (100) in sequence from end to end in the direction of the discharging end.

6. The grinding ring for rolling equipment according to claim 1, characterized in that: The rolling operation surface (200) is composed of a plurality of arc-shaped surfaces, which are connected in sequence from the feeding end to the discharging end of the ring base (100); The multiple arc-shaped surfaces are arranged with gradually changing sizes from the feeding end to the discharging end of the ring base (100).

7. The grinding ring for rolling equipment according to any one of claims 1 to 6, characterized in that: The material drop prevention structure (300) is arranged to extend radially inwardly along the ring base (100).

8. The grinding ring for rolling equipment according to claim 7, characterized in that: The upper surface of the material falling prevention structure (300) is a plane for contacting the surface of the rolling roller.

9. The grinding ring for rolling equipment according to any one of claims 1 to 6, characterized in that: The outer wall surface of the ring base (100) is set as a conical surface.

10. A rolling equipment, characterized in that: A grinding ring for rolling equipment comprising the grinding ring according to any one of claims 1 to 9.

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