Ball mill lining and single continuous ball mill
By designing a combination of grooved and smooth cylinders in the inner lining of the ball mill, the ball milling media can undergo various motion states, thus solving the high energy consumption problem of continuous single-unit ball coarse grinding and achieving a reduction in electricity consumption and an improvement in efficiency.
Patent Information
- Application Number
- CN202422881020.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The current single-unit continuous ball mill has high power consumption, and the lining structure needs to be optimized to reduce energy consumption.
Design a ball mill liner, including a liner body, a grooved cylinder and a smooth cylinder. The grooved cylinder is distributed in a stepped or gradually changing shape in the axial direction to assist the ball milling media in slinging, slinging-falling mixed and falling motion, and to realize continuous processes of coarse grinding, medium grinding and fine grinding.
It improves ball mill efficiency, reduces energy consumption, and achieves a single unit electricity consumption of less than 15 kWh/ton for continuous ball milling.
Smart Images
Figure CN223505383U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of a ball mill lining, in particular to a ball mill lining and a single continuous ball mill. BACKGROUND
[0002] Under the background of low-carbon environmental protection, with the continuous development of energy-saving and emission-reduction technology of ball milling for slurry preparation in the ceramic industry, the processing mode of the ball mill is continuously innovated and improved. Through research on the particle size of the material entering the mill, the specific gravity of the ball stones in the ball mill cylinder, the gradation of the ball stone size, the loading amount of the ball, the proportion of the ball stone material and water, and the rotation speed, the maximum efficiency of the ball mill is realized.
[0003] According to the data of the power consumption of the ball mill, although the overall power consumption of the ball mill can be reduced from 40 degrees / ton to 26 degrees / ton after the slurry is changed from the continuous ball milling mode to the single continuous ball coarse grinding and fine grinding combined mode, in fact, the power consumption of the single continuous ball coarse grinding to 250 purposes is 15-20 degrees / ton, which is still relatively high. Therefore, it is necessary to optimize the structure of the lining of the single continuous ball coarse grinding to realize the power consumption of less than 15 degrees / ton.
[0004] Therefore, the prior art needs to be improved. CONTENT OF THE UTILITY MODEL
[0005] The application aims to provide a ball mill lining and a single continuous ball mill, and aims to solve the technical problem of how to optimize the lining structure of the single continuous ball coarse grinding and realize the reduction of the power consumption of the single continuous ball coarse grinding in the prior art.
[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the application is:
[0007] In a first aspect, the application provides a ball mill lining, which comprises:
[0008] A lining body is used for being installed on the inner wall of a ball mill cylinder, and has a proximal end and a distal end. The proximal end is located on the feeding side of the ball mill cylinder, and the distal end is located on the discharging side of the ball mill cylinder.
[0009] A groove cylinder formed by a plurality of groove structures is distributed in the axial direction of the proximal end of the lining body, and extends from the proximal end to the distal end.
[0010] A smooth cylinder is arranged at the distal end of the lining body, and is connected with the groove cylinder.
[0011] In an embodiment, the groove cylinder is distributed in a stepped manner in the axial direction.
[0012] In an embodiment, the grooved cylinder comprises:
[0013] a first groove located at the proximal end of the inner liner body;
[0014] a second groove located between the first groove and the smooth cylinder, and the groove depth of the second groove is lower than that of the first groove.
[0015] In an embodiment, the groove depth of the first groove is 12-15 cm.
[0016] In an embodiment, the groove depth of the second groove is 7-10 cm.
[0017] In an embodiment, the axial length of the first groove, the second groove and the smooth cylinder are equal.
[0018] In an embodiment, the groove depth of the grooved cylinder is gradually distributed in the axial direction, and the groove depth gradually decreases from the proximal end to the distal end.
[0019] In an embodiment, the groove depth of the grooved cylinder is 7-15 cm.
[0020] In an embodiment, the grooved structure comprises a left arc-shaped groove wall and a right arc-shaped groove wall, and the left arc-shaped groove wall is connected with the right arc-shaped groove wall of the adjacent grooved structure on the left side to form an arc-shaped protrusion, and the right arc-shaped groove wall is connected with the left arc-shaped groove wall of the adjacent grooved structure on the right side to form another arc-shaped protrusion.
[0021] In a second aspect, the application provides a single continuous ball mill, wherein the ball mill liner as described in the above embodiments is included. Therefore, the single continuous ball mill can have all the technical features and beneficial effects of the ball mill liner described above, which will not be repeated.
[0022] The ball mill liner and the single continuous ball mill provided by the application have at least the following beneficial effects:
[0023] The application discloses a ball mill lining and a single continuous ball mill, wherein the ball mill lining comprises a lining body, a groove cylinder formed by a plurality of groove structures and a smooth cylinder, the lining body is used for being mounted on the inner wall of a ball mill cylinder, the lining body has a proximal end and a distal end, the proximal end is located on the feeding side of the ball mill cylinder, the distal end is located on the discharging side of the ball mill cylinder, the groove cylinder is arranged at the proximal end of the lining body and extends from the proximal end to the side of the distal end, and the smooth cylinder is arranged at the distal end of the lining body and is connected with the groove cylinder. In the application, the groove cylinder and the smooth cylinder are arranged on the ball mill lining in sequence, when the ball mill rotates, the ball mill medium can present different motion states in the groove cylinder and the smooth cylinder, so that the ball mill medium simultaneously performs coarse grinding, medium grinding and fine grinding in the ball mill lining, the ball mill efficiency is improved, the energy consumption is reduced, and energy-saving innovation is realized. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.
[0025] Figure 1 A cross-sectional structure schematic diagram of the ball mill lining provided by the embodiments of the present application is shown in the figure.
[0026] Figure 2 A cross-sectional structure schematic diagram of a specific embodiment of the ball mill lining provided by the embodiments of the present application is shown in the figure.
[0027] Figure 3 A cross-sectional structure schematic diagram of a specific embodiment of the groove structure provided by the embodiments of the present application is shown in the figure.
[0028] Figure 4 A cross-sectional structure schematic diagram of another specific embodiment of the groove structure provided by the embodiments of the present application is shown in the figure.
[0029] Figure 5 A ball mill efficiency comparison table of the ball mill lining and the ordinary lining provided by the embodiments of the present application is shown in the figure.
[0030] In the figure, various reference signs are as follows:
[0031] 100, lining body; 200, ball mill cylinder; 300, groove cylinder; 400, smooth cylinder; 110, proximal end; 120, distal end; 310, groove structure; 320, first groove; 330, second groove. DETAILED DESCRIPTION
[0032] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application.
[0033] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position shown in the drawings, and are only for the convenience of description, and cannot be understood as a limitation on the technical solutions. The terms "first", "second" are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0034] Embodiment 1:
[0035] Please refer to Figure 1 The embodiment provides a ball mill lining, which comprises a lining body 100, a groove cylinder 300 formed by a plurality of groove structures 310, and a smooth cylinder 400. The lining body 100 is used to be installed on the inner wall of a ball mill cylinder 200. The lining body 100 has a proximal end 110 and a distal end 120. The proximal end 110 is located on the feeding side of the ball mill cylinder 200, and the distal end 120 is located on the discharging side of the ball mill cylinder 200. The groove structures 310 are distributed in the proximal end 110 of the lining body 100 in an axial direction, and the groove cylinder 300 extends from the proximal end 110 to the distal end 120. The smooth cylinder 400 is arranged at the distal end 120 of the lining body 100, and the smooth cylinder 400 is connected with the groove cylinder 300.
[0036] In the embodiment, according to the movement state of the material and the ball milling medium in the ball mill, the movement state of the ball milling medium in the ball mill lining can be basically divided into the following four cases:
[0037] 1. Falling motion state. When the ball mill rotates, the ball milling medium rises to 2 / 3 of the height of the cylinder or approaches the highest point on the lining of the ball mill, and falls like a projectile. At this time, the ball milling medium is in a falling motion state, the potential energy of the ball milling medium is maximum, and the effect of material crushing is more obvious. This movement form of the ball milling medium is generally applied to the rough grinding process of continuous ball milling.
[0038] 2. Cascading motion state. When the rotational speed of the ball mill is relatively low, all the ball mill media can be regarded as a loose mass, and the interface thereof is continuously inclined upward along the ball mill liner with the rotation of the barrel, forming a slope. When the inclination angle of the slope reaches the natural rest angle of the ball mill media, the ball mill media will roll down the slope under the action of gravity and the like, forming a cascading motion. In the motion, the material is mainly crushed by the impact and grinding action generated by the relative motion of the ball mill media. This motion form of the ball mill media is applied to the fine grinding process of the continuous ball mill.
[0039] 3. Mixed motion of throwing and cascading. When the ball mill media simultaneously performs the mixed throwing and cascading motion in the liner, this motion form is applied to the medium grinding process of the continuous mill.
[0040] 4. Centrifugal motion state. When the rotational speed of the barrel is too high, the ball mill media adheres to the ball mill liner to rotate with the liner due to the action of the centrifugal force and no longer falls. In the centrifugal motion, the ball mill media no longer produces impact and grinding action on the material, and the material cannot be crushed. This motion state is to be avoided as much as possible.
[0041] In the embodiment, the groove barrel 300 is located at the proximal end 110 of the liner body 100, and a plurality of groove structures 310 are arranged in the groove barrel 300. When the ball mill rotates, under the action of the centrifugal force and the groove structures 310, the groove barrel 300 can assist a part of the ball mill media to reach the highest point to perform the throwing motion, so as to fully utilize the maximum potential energy of the ball mill media in the throwing mode to convert into the maximum kinetic energy to crush the coarse particle material.
[0042] The smooth barrel 400 refers to the smooth surface of the ball mill liner. When the ball mill rotates, the ball mill media will roll down the ball mill liner (slope) under the action of gravity and the like, forming a cascading motion.
[0043] Since the groove barrel 300 and the smooth barrel 400 are sequentially arranged on the liner body 100, the groove barrel 300 is located at the proximal end 110 of the liner body 100, that is, the groove barrel 300 is located at the feeding side of the ball mill barrel 200, and the smooth barrel 400 is located at the distal end 120 of the liner body 100. Thus, in the ball mill barrel 200, the ball mill media mainly performs the throwing motion near the groove barrel 300, and mainly performs the cascading motion near the smooth barrel 400. The mixed motion of throwing and cascading exists at the junction position of the groove barrel 300 and the smooth barrel 400, so that the ball mill media sequentially presents different motion states of the throwing motion, the mixed motion of throwing and cascading, and the cascading motion in the ball mill liner, and the continuous ball grinding process of coarse grinding, medium grinding and fine grinding is realized, and the ball grinding efficiency is improved. Figure 5
[0044] Therefore, the groove barrel 300 and the smooth barrel 400 are sequentially arranged on the ball mill liner in the embodiment, when the ball mill rotates, the ball mill medium can present different motion states in the groove barrel 300 and the smooth barrel 400, so that the ball mill medium simultaneously performs coarse grinding, medium grinding and fine grinding in the ball mill liner, the ball mill efficiency is improved, the energy consumption is reduced, and energy saving innovation is realized.
[0045] In the embodiment, when the ball mill rotates, under the action of the centrifugal force and the groove barrel 300, the ball mill medium is lifted to the highest point, more ball mill medium is driven to the highest point in the groove barrel 300 to perform the throw-down type motion, the maximum potential energy of the ball mill medium in the throw-down type is fully utilized to convert into the maximum kinetic energy to crush the coarse / hard particles. On the side of the smooth barrel 400 close to the groove barrel 300, part of the ball mill medium is lifted to the highest point to perform the throw-down type motion, and part of the ball mill medium performs the fall-down type motion, that is, the ball mill medium performs the throw-down-fall-down mixed motion at the joint position of the groove barrel 300 and the smooth barrel 400; on the side of the smooth barrel 400 close to the discharge side of the ball mill barrel 200, most of the ball mill medium performs the fall-down type motion, and plays a role of grinding the material again. In this way, the ball mill medium crushes more coarse particle materials in unit time, and the segmented structure of the ball mill liner enables the ball mill medium to continuously perform the interlaced dense motion, so that more actual effective work is performed, and the efficiency of the ball mill medium in crushing and grinding the material in unit time is maximized.
[0046] The suitable ball mill medium is selected, and the ball mill medium generally adopts grinding ball stones, wherein the density of the grinding ball stone is greater than or equal to 3.6 g / cm 3 , and the diameter of the grinding ball stone is greater than or equal to φ35 mm. The reasons are as follows: when the ball mill rotates, under the action of the centrifugal force and the groove barrel 300, the grinding ball stone is lifted to the highest point, the greater the weight of the grinding ball stone, the greater the potential energy of the grinding ball stone after being lifted, and the effect of crushing or crushing the material is more obvious. If the diameter of the grinding ball stone is too small, the small grinding ball stone performs invalid work or only plays a small role, and if the process requirement of the fineness of the material is to be met, longer ball milling time is needed. The greater the height formed by the grinding ball stone and the lowest point of the ball mill liner, the greater the gravitational potential energy obtained by the grinding ball stone, and the greater the kinetic energy obtained by the grinding ball stone, so that the coarse / hard particles are more easily crushed to disperse the viscous mud.
[0047] The speed of the ball mill barrel 200 is reasonably controlled: if the speed of the ball mill barrel 200 is appropriate, the grinding can be performed at a faster speed and at a higher efficiency. When the speed of the ceramic ball mill is too fast, due to the too large centrifugal force, the grinding ball stone is tightly attached to the inner wall of the ball mill liner, the grinding ball stone cannot perform the throw-down type motion or the fall-down type motion, and the material cannot be effectively crushed. On the contrary, when the speed is too slow, the number of actions of the grinding body on the material in unit time is reduced, and the lifting height of the grinding ball stone is insufficient, so that the impact of the grinding ball stone on the material when falling down is small, and the grinding speed and efficiency are low.
[0048] The feeding speed of the ball mill is reasonably controlled, that is, the loading amount of the ball mill barrel 200 is controlled. If the loading amount of the ball mill barrel 200 is too small, the number of invalid collisions between the grinding balls increases, which increases the consumption of the ball mill liner and the grinding balls. If the feeding amount is too large, the total crushing and grinding efficiency is reduced, and the grinding time is prolonged. Therefore, too much or too little feeding cannot improve the ball milling efficiency, which greatly reduces the ball milling efficiency of the ball mill, and increases the power consumption.
[0049] Specifically, referring to Figure 2 and Figure 3 , the groove barrel 300 is distributed in a stepped manner in the axial direction.
[0050] In the embodiment, the groove barrel 300 is distributed in a stepped manner in the axial direction, which is equivalent to that the groove structure 310 of the groove barrel 300 can be arranged in segments in the axial direction, and the groove depths of each segment of the groove structure 310 are different. For example, the groove depths of the groove structure 310 can be distributed in a stepped manner in the axial direction. When the ball mill rotates, the groove structure 310 in the groove barrel 300 can assist the ball milling medium to move to a certain height and then fall down. The height to which the groove structure 310 can assist the ball milling medium to move is related to the groove depth of the groove structure 310 itself, which is equivalent to that the ball milling medium can be assisted to move to different heights in the inner liner body 100 and then fall down, so that the ball milling medium simultaneously performs the throwing type movement, the throwing-precipitating mixed movement and the precipitating type movement in the inner liner of the ball mill, thereby realizing the continuous ball milling process of coarse grinding, medium grinding and fine grinding, and improving the ball milling efficiency.
[0051] Specifically, referring to Figure 2 and Figure 3 , the groove barrel 300 includes a first groove 320 and a second groove 330. The first groove 320 is located at the proximal end 110 of the inner liner body 100, and the second groove 330 is located between the first groove 320 and the smooth barrel 400. The groove depth of the second groove 330 is lower than that of the first groove 320.
[0052] In this embodiment, the groove depth of the second groove 330 is lower than that of the first groove 320. Here, the bottom plates of both the first groove 320 and the second groove 330 are on the same horizontal plane as the smooth cylinder 400, and the groove wall height of the first groove 320 is greater than that of the second groove 330. This is equivalent to the grinding media moving to a certain height and then falling down through the groove wall of the first groove 320 or the second groove 330. The inner liner body 100 is sequentially provided with a first groove 320, a second groove 330, and a smooth cylinder 400, which is equivalent to the inner liner body 100 being provided with three different liner plate structures. For example, by setting the groove depth of the first groove 320, the first groove 320 assists the grinding media in performing a cascading motion. By setting the groove depth of the second groove 330, the first groove 320 assists the grinding media in performing a mixed cascading-cascading motion. In the smooth cylinder 400, the grinding media can perform a cascading motion. In this way, the grinding media can simultaneously perform cascading motion, mixed cascading-cascading motion, and cascading motion within the ball mill liner, thereby realizing a continuous ball milling process of coarse grinding, medium grinding, and fine grinding, and improving ball milling efficiency.
[0053] It should be understood that the grooved cylinder 300 is not limited to the first groove 320 and the second groove 330 (two-section type) mentioned above. The grooved cylinder 300 can also be provided with three or four grooved structures 310 with different groove depths. That is, the grooved cylinder 300 can be divided into multiple grooved structures 310 with different groove depths according to the length of the ball mill cylinder 200 and the needs of ball milling efficiency.
[0054] Optionally, the groove depth of the first groove 320 is 12-15cm.
[0055] For example, the depth of the first groove 320 can be 12cm, 13cm, 14cm, or 15cm. In this way, the first groove 320 can assist the grinding media to move to a certain height before falling, so as to achieve a throwing motion.
[0056] Optionally, the groove depth of the second groove 330 is 7-10cm.
[0057] For example, the depth of the second groove 330 can be 7cm, 8cm, 9cm, or 10cm. In this way, the second groove 330 can assist the milling media to move to a certain height before falling, so as to achieve a mixed motion of cascading and precipitating.
[0058] Specifically, please combine Figure 2 As shown, the axial lengths of the first groove 320, the second groove 330, and the smooth cylinder 400 are all equal.
[0059] In the embodiment, the axial lengths of the first groove 320, the second groove 330 and the smooth cylinder 400 are equal, which is equivalent to dividing the length of the inner liner body 100 into three equal segments, thereby forming a ball mill cylinder body with a structure of two segments of grooved liner + one segment of smooth liner, so that the ball mill media simultaneously performs the throw-down movement, the throw-down-rain-down mixed movement and the rain-down movement in the ball mill liner, thereby realizing the continuous ball milling process of coarse grinding, medium grinding and fine grinding and improving the ball milling efficiency. For example, according to the division of the length of the inner liner body 100 into three equal segments, after the material enters from the feeding port, the rotating distributor uniformly distributes the material in the inner liner body 100, the first groove 320 is used in the first third of the cylinder body behind the rotating distributor, the groove depth of the first groove 320 is 12-15 cm, and meanwhile, 16 groove structures 310 are uniformly distributed at the proximal end 110 of the inner liner body 100, the second groove 330 is used in the middle part of the inner liner body 100, the groove depth of the second groove 330 is 7-10 cm, and meanwhile, the number of the second groove 330 can also be 16, and the smooth cylinder 400 is used near the distal end 120 of the inner liner body 100.
[0060] Specifically, referring to Figure 2 , the groove structure 310 comprises a left arc-shaped groove wall and a right arc-shaped groove wall, and the left arc-shaped groove wall and the right arc-shaped groove wall of the adjacent groove structure 310 on the left side are connected to form an arc-shaped protrusion, and the right arc-shaped groove wall and the left arc-shaped groove wall of the adjacent groove structure 310 on the right side are connected to form another arc-shaped protrusion.
[0061] In the embodiment, the left arc-shaped groove wall and the right arc-shaped groove wall can form an arc-shaped groove, which can assist the ball mill media to move to a certain height and then fall down, and meanwhile, the arc-shaped groove surface is smooth, which can reduce the wear of the groove structure 310 by the ball mill media and prolong the service life of the ball mill liner. Moreover, the groove cylinder 300 can be formed by surrounding the continuous groove structures 310, for example, the groove cylinder 300 can be composed of 16 groove structures 310, and the 16 groove structures 310 are sequentially and closely connected, which can ensure the continuity of the movement of the ball mill media in the ball mill liner and improve the ball milling efficiency and reduce the energy consumption.
[0062] In another embodiment, referring to Figure 4 , the groove depth of the groove cylinder 300 is gradually distributed in the axial direction, and the groove depth of the groove cylinder 300 gradually decreases from the proximal end 110 to the distal end 120.
[0063] In the embodiment, the groove depth of the groove structure 310 is gradually distributed in the axial direction, the groove depth of the groove cylinder 300 gradually decreases from the proximal end 110 to the distal end 120, which is equivalent to that the side wall of the groove structure 310 is arranged in a trapezoidal shape, so that the ball milling medium simultaneously performs the throwing movement, the throwing- cascading mixed movement and the cascading movement in the ball mill liner, thereby realizing the continuous ball milling process of rough milling, medium milling and fine milling, and improving the ball milling efficiency.
[0064] Specifically, as shown in FIG. 4, the groove depth of the groove cylinder 300 is 7-15 cm. Figure 4
[0065] In the embodiment, the groove depth of the groove cylinder 300 close to the proximal end 110 can be 15 cm, the groove depth of the groove cylinder 300 gradually decreases from the proximal end 110 to the distal end 120, and the groove depth of the groove cylinder 300 close to the smooth cylinder 400 can be 7 cm, the surface of the smooth cylinder 400 is smooth and flat, which is equivalent to that the smooth cylinder 400 has no groove structure 310, so as to realize the throwing movement, the throwing-cascading mixed movement and the cascading movement of the ball milling medium in the ball mill liner, thereby realizing the continuous ball milling process of rough milling, medium milling and fine milling, and improving the ball milling efficiency.
[0066] Embodiment 2:
[0067] The single continuous ball mill provided by the application comprises the ball mill liner in the above embodiments. Therefore, the single continuous ball mill can have all the technical features and beneficial effects of the ball mill liner, which will not be repeated here.
[0068] In summary, the application discloses a ball mill liner and a single continuous ball mill, wherein the ball mill liner comprises a liner body, a groove cylinder formed by a plurality of groove structures, and a smooth cylinder. The liner body is used to be installed on the inner wall of a ball mill cylinder. The liner body has a proximal end and a distal end. The proximal end is located on the feeding side of the ball mill cylinder, and the distal end is located on the discharging side of the ball mill cylinder. The groove structures are distributed in the axial direction on the proximal end of the liner body, and the groove cylinder extends from the proximal end to the distal end. The smooth cylinder is arranged on the distal end of the liner body and connected with the groove cylinder. In the application, the groove cylinder and the smooth cylinder are arranged in sequence on the ball mill liner. When the ball mill rotates, the ball milling medium can have different movement states in the groove cylinder and the smooth cylinder, so that the ball milling medium simultaneously performs the rough milling, medium milling and fine milling movement in the ball mill liner, thereby improving the ball milling efficiency, reducing the energy consumption, and realizing the energy-saving innovation.
[0069] The above only describes the preferred embodiments of the application and is not used to limit the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.
Claims
1. A ball mill liner, characterized in that, include: The inner liner body is used to be installed on the inner wall of the ball mill cylinder. The inner liner body has a proximal end and a distal end. The proximal end is located on the feed side of the ball mill cylinder, and the distal end is located on the discharge side of the ball mill cylinder. A grooved cylinder formed by several grooved structures, wherein the grooved structures are axially distributed on the proximal end of the inner liner body, and the grooved cylinder extends from the proximal end to the distal end. A smoothing cylinder is disposed at the distal end of the inner lining body and is connected to the grooved cylinder.
2. The ball mill liner as described in claim 1, characterized in that, The grooved cylinders are distributed in a stepped manner along the axial direction.
3. The ball mill liner as described in claim 2, characterized in that, The grooved cylinder includes: A first groove, the first groove being located at the proximal end of the inner lining body; The second groove is located between the first groove and the smooth cylinder, and the groove depth of the second groove is lower than that of the first groove.
4. The ball mill liner as described in claim 3, characterized in that, The depth of the first groove is 12-15cm.
5. The ball mill liner as described in claim 3, characterized in that, The depth of the second groove is 7-10cm.
6. The ball mill liner as described in claim 3, characterized in that, The axial lengths of the first groove, the second groove, and the smooth cylinder are all equal.
7. The ball mill liner as described in claim 1, characterized in that, The groove depth of the grooved cylinder is gradually distributed in the axial direction, and the groove depth of the grooved cylinder gradually decreases from the proximal end to the distal end.
8. The ball mill liner as described in claim 7, characterized in that, The groove depth of the grooved cylinder is 7-15cm.
9. The ball mill liner as described in claim 1, characterized in that, The groove structure includes a left arc-shaped groove wall and a right arc-shaped groove wall. The left arc-shaped groove wall is connected to the right arc-shaped groove wall of the adjacent groove structure on the left to form an arc-shaped protrusion. The right arc-shaped groove wall is connected to the left arc-shaped groove wall of the adjacent groove structure on the right to form another arc-shaped protrusion.
10. A single-unit continuous ball mill, characterized in that, Includes the ball mill liner as described in any one of claims 1-9.