Ladder-type wear-resistant lining plate for ball mill

Abstract

The utility model discloses a trapezoidal wear -resistant lining plate for ball mill, including cylinder and lining, the inner wall of cylinder is with the lining and axial all equally spaced distribution has lining along the circumference, the lining is trapezoidal shape setting, the fixed connection of the position of the inner wall of cylinder relative to the lining all has L shaped buckle, the lower surface of lining is opened in penetration and has L shaped clamping groove, L shaped buckle extends to L shaped clamping groove and is in abutment with the lining, the cavity is opened in penetration in the lining and fills and has inorganic color ceramic particle, the both sides outer wall fixed connection of lining has the mounting block, and lining can be pushed in along the cylinder circumferential transverse and realizes quick positioning, and the closed cavity of inorganic color ceramic particle is preset in the lining, when the lining wears to critical value, color particle exposes, and operating personnel can directly judge the replacement opportunity through the observation hole, need not stop machine and take off the cover and measure, avoid excessive wear or the cost waste of early replacement.

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant liner technology, specifically a trapezoidal wear-resistant liner for ball mills. Background Technology

[0002] Ball mills are key equipment for re-grinding materials after they have been crushed. They consist of a feeding section, a discharging section, a rotating section, and a transmission section. The cylinder is lined with wear-resistant liners and contains grinding media. When the cylinder rotates, the grinding media are carried to a certain height by centrifugal force and then thrown down, crushing the material through impact. At the same time, the media slide between each other to generate a grinding effect. The liner prevents the grinding media and materials from directly impacting and rubbing against the cylinder, thus extending the service life of the equipment.

[0003] The appropriate time to replace the liner is when it is worn down to 1 / 3 of its original thickness. At this point, the liner can still maintain basic wear resistance. If it is used continuously, the liner will be worn through and the inner wall of the cylinder will be directly worn. If it is replaced in advance, it will result in a waste of liner material. When checking the wear of the liner, it is necessary to stop the machine, remove the cover and measure each piece manually to determine the degree of wear, which increases the replacement time and replacement cost. Utility Model Content

[0004] The purpose of this utility model is to provide a trapezoidal wear-resistant liner for ball mills to solve the technical problem of inconvenient liner wear and maintenance during the crushing process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A trapezoidal wear-resistant liner for a ball mill includes a cylinder and a liner. The inner wall of the cylinder is provided with liner plates that are equidistantly distributed along both the circumferential and axial directions, and the liner plates are arranged in a trapezoidal shape.

[0007] The inner wall of the cylinder is fixedly connected with L-shaped buckles relative to the liner plate. The lower surface of the liner plate has an L-shaped groove through which the L-shaped buckles extend into the L-shaped groove and abut against the liner plate. The liner plate has a cavity through which it is filled with inorganic colored ceramic particles.

[0008] As a preferred embodiment of this utility model, mounting blocks are fixedly connected to the outer walls of both sides of the liner. A countersunk threaded hole is opened through the outer wall of one end of the mounting block. The countersunk threaded hole extends through into the cylinder and is threadedly connected to a fixing bolt. The head of the fixing bolt is embedded in the countersunk threaded hole.

[0009] As a preferred embodiment of this utility model, a partition plate is provided between the liner and the cylinder.

[0010] As a preferred embodiment of this utility model, a protrusion is fixedly connected to one end of the outer wall of the L-shaped buckle, and a groove is opened through one end of the outer wall of the L-shaped slot, with the protrusion extending into the groove.

[0011] Compared with the prior art, the beneficial effects of this utility model of a trapezoidal wear-resistant liner for ball mills are as follows: the L-shaped slot of the liner is inserted into the L-shaped buckle for initial fixation, and the fixing bolt is rotated into the countersunk threaded hole for secondary reinforcement. The pre-fixing structure of L-shaped buckle and protrusion allows the liner to be pushed in laterally along the circumference of the cylinder for quick positioning. The liner has a pre-set closed cavity containing inorganic colored ceramic particles. When the liner wears to the critical value, the colored particles are exposed, and the operator can intuitively judge the replacement time through the observation hole without stopping the machine to remove the cover for measurement, thus avoiding the cost waste of excessive wear or premature replacement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the L-shaped buckle installation position structure according to an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the installation position structure of the inorganic colored ceramic particles according to an embodiment of the present invention.

[0016] Reference numerals: 1. Cylinder body; 2. Liner plate; 3. L-shaped buckle; 4. L-shaped groove; 5. Inorganic colored ceramic particles; 6. Mounting block; 7. Fixing bolt; 8. Divider plate; 9. Protrusion. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0018] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0019] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0020] See Figure 1-3 As shown in the figure, an embodiment of the present invention provides a trapezoidal wear-resistant liner for a ball mill, comprising a cylinder 1 and a liner 2. The inner wall of the cylinder 1 is provided with liner 2 at equal intervals along the circumferential and axial directions, and the liner 2 is arranged in a trapezoidal shape.

[0021] The inner wall of the cylinder 1 is fixedly connected with L-shaped buckles 3 at positions relative to the liner plate 2. An L-shaped groove 4 is opened through the lower surface of the liner plate 2. The L-shaped buckles 3 extend into the L-shaped groove 4 and abut against the liner plate 2. A cavity is opened through the liner plate 2 and filled with inorganic colored ceramic particles 5. The partition plate 8 is made of nitrile rubber pad or ceramic fiber paper. Its function is to buffer the rigid contact between the liner plate 2 and the cylinder 1 and to avoid direct wear between the two due to vibration. The liner plate 2 is set in a trapezoidal shape. A closed cavity is opened through the liner plate 2 at a distance of 1 / 3 from its working surface. The cavity is filled with inorganic colored ceramic particles 5 that are resistant to high temperature, do not fade, and whose color is significantly different from that of the liner plate 2 and the grinding material. This is used to visually indicate the wear status of the liner plate 2. The liner plate 2 is made of chromium cast iron to increase wear resistance.

[0022] Mounting blocks 6 are fixedly connected to the outer walls of both sides of the liner plate 2. One end of the outer wall of the mounting block 6 has a countersunk threaded hole that extends through to the cylinder 1 and is threaded with a fixing bolt 7. The head of the fixing bolt 7 is embedded in the countersunk threaded hole, which facilitates the use of the fixing bolt 7 to limit and fix the mounting block 6 and the liner plate 2. A partition plate 8 is provided between the liner plate 2 and the cylinder 1 to prevent a rigid connection between the liner plate 2 and the cylinder 1. One end of the outer wall of the L-shaped buckle 3 has a protrusion 9 fixedly connected to it. One end of the outer wall of the L-shaped groove 4 has a protrusion groove that extends through to the protrusion groove.

[0023] In use, align the opening of the L-shaped slot 4 of the single liner plate 2 with the L-shaped buckle 3 on the inner wall of the cylinder 1, and slowly push it in laterally along the cylinder 1 until the L-shaped buckle 3 is fully inserted into the L-shaped slot 4 and the protrusion 9 is engaged in the groove. At this time, the liner plate 2 is pre-fixed. Insert the partition plate 8 into the gap between the liner plate 2 and the cylinder 1, and insert the fixing bolt 7 through the countersunk threaded holes of the mounting blocks 6 on both sides of the liner plate 2. Rotate the fixing bolt 7 into the countersunk threaded hole and ensure that the screw head of the fixing bolt 7 is fully embedded in the countersunk hole to avoid the bolt from loosening due to the impact of the steel ball. When the working surface of the liner plate 2 is worn to 1 / 3, the inorganic colored ceramic particles 5 will be exposed on the surface of the liner plate 2. The operator can visually see the color of the inorganic colored ceramic particles 5 through the observation hole of the cylinder 1 and determine that the liner plate 2 needs to be replaced.

[0024] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A trapezoidal wear-resistant liner for a ball mill, comprising a cylinder (1) and a liner (2), wherein the inner wall of the cylinder (1) is provided with liner (2) at equal intervals along the circumferential and axial directions, and the liner (2) is arranged in a trapezoidal shape; Its features are: The inner wall of the cylinder (1) is fixedly connected with L-shaped buckles (3) relative to the liner (2). The lower surface of the liner (2) is provided with an L-shaped groove (4). The L-shaped buckle (3) extends into the L-shaped groove (4) and abuts against the liner (2). The liner (2) is provided with a cavity and filled with inorganic colored ceramic particles (5).

2. The trapezoidal wear-resistant liner for a ball mill according to claim 1, characterized in that: The outer walls of both sides of the liner (2) are fixedly connected to mounting blocks (6). One end of the outer wall of the mounting block (6) is provided with a countersunk threaded hole. The countersunk threaded hole extends through into the cylinder (1) and is threadedly connected to a fixing bolt (7). The head of the fixing bolt (7) is embedded in the countersunk threaded hole.

3. The trapezoidal wear-resistant liner for a ball mill according to claim 1, characterized in that: A partition plate (8) is provided between the liner (2) and the cylinder (1).

4. The trapezoidal wear-resistant liner for a ball mill according to claim 1, characterized in that: One end of the L-shaped buckle (3) is fixedly connected to a protrusion (9), and one end of the L-shaped slot (4) is provided with a through groove, with the protrusion (9) extending into the groove.

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