Ball mill strip-shaped lining plate replacing device

Abstract

The utility model discloses a strip-shaped lining plate replacing device of a ball mill. The strip-shaped lining plate replacing device comprises a lining plate conveying frame, a hoisting device and a conveying trolley, wherein the lining plate conveying frame penetrates through a discharge port and horizontally penetrates through the interior of a ball mill barrel; the hoisting device and the conveying trolley are respectively connected to the lining plate conveying frame in a rolling manner and are parallel up and down; a mounting frame is further arranged below the transportation frame and comprises a supporting frame and a mounting guide rail which is vertically mounted on a vertical rod of the supporting frame and can be adjusted up and down, one end of the mounting guide rail is bent downwards to serve as a mounting end, and supporting legs are connected to the front end of the mounting end; a mounting trolley is connected to the mounting guide rail in a rolling mode, and a second limiting component is arranged at one end of the mounting trolley. The mounting frame and the mounting trolley are arranged below the lining plate conveying frame, so that the problem of conveying the lining plate from a hoisting and descending position to a to-be-mounted position is solved; under the cooperation of the mounting guide rail, the mounting trolley, the second limiting component on the mounting trolley, the supporting legs and the first limiting component, accurate mounting of the lining plate can be achieved, and the lining plate does not need to be repeatedly adjusted and aligned.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mill liner replacement, and particularly relates to a device for replacing strip liners of a ball mill. Background Technique

[0002] The liner is the main easily worn part in the ball mill, with a large consumption, and is a frequently replaced spare part in the ball mill. Among them, the strip liner, also called the pressing strip liner, simulates a waveform structure by arranging a number of thicker lifting liners and thinner cylinder liners at intervals, optimizing the material flow and energy distribution in the ball mill, improving the grinding efficiency, and at the same time reducing the operation cost. The strip liner is widely used because it is simple to manufacture, convenient to install and maintain, and does not require a large amount of disassembly work during replacement. Compared with ordinary liners, it has high maintenance efficiency and short downtime.

[0003] Due to the specific structure of the ball mill cylinder, a feed inlet and a discharge outlet for restricting the overflow of grinding materials are respectively provided at both ends of the cylinder. The ball mill liner needs to be transported from outside the ball mill cylinder to inside the cylinder for installation. The existing liner replacement device only solves the problem of transporting the liner between the inside and outside of the cylinder. The transportation from the hoisting and landing position of the liner to the installation position of the liner is carried out manually. Because the internal environment of the cylinder is narrow and poorly ventilated, and moreover, the strip liner itself is heavy and there are many of them, the labor intensity is very high only by manual lifting, and safety accidents such as extrusion and object hitting are extremely likely to occur; in addition, the installation of the liner has relatively precise position requirements, and the installers need to frequently carry out liner handling and alignment operations, resulting in low installation efficiency. Content of the Utility Model

[0004] The utility model provides a device for replacing strip liners of a ball mill, and its purpose is to solve the problems of manual lifting and repeated adjustment and alignment during the installation of strip liners.

[0005] The technical solution of the utility model is as follows:

[0006] A bar liner replacement device for a ball mill, comprising a liner transport rack that passes through the discharge port of the ball mill and horizontally penetrates the interior of the ball mill cylinder during use. The bar liner replacement device for the ball mill further comprises a hoisting device and a transport trolley that are respectively roll-connected to the liner transport rack; the bar liner replacement device for the ball mill further comprises a mounting rack that is arranged below the liner transport rack and is used for the transport and installation of the bar liner inside the ball mill cylinder. The mounting rack comprises a support frame, the support frame is of a rectangular structure and comprises vertical columns arranged in parallel, and horizontal support bars are vertically connected to the top and bottom of the vertical columns respectively. The mounting rack further comprises mounting rails that are vertically installed on the vertical columns on both sides of the support frame and whose positions can be adjusted up and down. One end of the mounting rail close to the inner wall of the ball mill cylinder bends downward as an installation end, and a support leg is connected to the front end of the installation end. The support leg comprises a first limiting member for clamping with the lifting liner to fix the position of the installation end. The mounting rack further comprises a mounting trolley that is roll-connected to the mounting rail, and a second limiting member for assisting in positioning the lifting liner is arranged at one end of the mounting trolley close to the support frame.

[0007] Further, the liner transport rack comprises a first carrier rail and a second carrier rail connected to the lower side of the first carrier rail; the hoisting device is roll-mounted on the first carrier rail, and the transport trolley is roll-mounted on the second carrier rail.

[0008] Further, the liner transport rack comprises rollers respectively fixed at one end of the two second carrier rails.

[0009] Further, notches corresponding one by one to the track wheels at the bottom of the hoisting device are provided on the first carrier rail for ensuring that the hoisting device can be placed horizontally into the first carrier rail; notches corresponding one by one to the track wheels at the bottom of the transport trolley are provided on the second carrier rail for ensuring that the transport trolley can be placed horizontally into the second carrier rail and the transport trolley.

[0010] Further, the first limiting member comprises a baffle perpendicular to the mounting rail, and limiting components are respectively connected to both ends of the baffle.

[0011] Further, a rail clip for clamping the mounting rail is sleeved on the vertical column.

[0012] Further, a plurality of positioning through holes are arranged at fixed intervals along the height direction of the vertical column, and the support frame further comprises positioning pins that cooperate with the positioning through holes. The positioning pins cooperate with the positioning through holes to limit the position of the rail clip.

[0013] Further, the mounting trolley comprises a carrier platform, and a bearing structure protruding from the surface of the carrier platform is fixed on the carrier platform. The bearing structure is used for supporting the liner so that the bottom surface of the liner is higher than the surface of the mounting rail.

[0014] Further, the lifting device includes a manual lifting equipment.

[0015] Optionally, the lifting device includes a light electric lifting equipment.

[0016] Compared with the prior art, the utility model has the following positive effects:

[0017] (1) By arranging an installation frame and an installation trolley under the lining plate transport rack, the transportation problem of the strip lining plate from the hoisting landing position to the installation position to be installed is solved;

[0018] (2) With the cooperation of the installation guide rail, the installation trolley, the second limiting member on the installation trolley, the support legs and the first limiting member arranged on the support legs, the precise installation of the strip lining plate can be realized without repeatedly adjusting and aligning the strip lining plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 is a schematic diagram of the lining plate transport rack, the lifting device and the transport trolley structure;

[0021] Figure 3 is a schematic diagram of the lifting device structure;

[0022] Figure 4 is a schematic diagram of the transport trolley structure;

[0023] Figure 5 is a schematic diagram of the installation frame structure;

[0024] Figure 6 is a schematic diagram of the lining plate installation.

[0025] In the figure, 1. Lining plate transport rack; 1-1. Roller; 1-2. First carrier guide rail; 1-3. Second carrier guide rail; 2. Transport trolley; 3. Lifting device; 4. Lifting device; 5. Installation frame; 5-1. Installation guide rail; 5-2. Support leg; 5-3. First limiting member; 5-4. Guide rail clamp; 5-5. Support frame; 5-6. Positioning pin; 5-7. Positioning through hole; 6. Installation trolley; 6-1. Second limiting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0027] As Figure 1 and Figure 2, a bar lining replacement device for a ball mill, comprising a lining transport rack 1 that horizontally penetrates the inside of the ball mill cylinder through the discharge port during use, and a hoisting device 3 and a transport trolley 2 that are respectively rollingly connected to the lining transport rack 1; the lining transport rack 1 includes a first carrier rail 1-2 and a second carrier rail 1-3 connected to the lower side of the first carrier rail 1-2.

[0028] As Figure 3 , the hoisting device 3 includes a cross beam and legs fixed on both sides of the cross beam. Track wheels running on the first carrier rail 1-2 are installed at the bottom of the legs. The clear height below the cross beam is 1.5 times the height of the hoisted object. A lifting device 4 is fixed on the cross beam. The lifting device 4 can be a manual lifting device or a light electric lifting device. As Figure 4 , the transport trolley 2 includes a transport platform. Track wheels running on the second carrier rail 1-3 are installed at the bottom of the transport platform; notches corresponding one by one to the track wheels at the bottom of the hoisting device 3 are provided on the first carrier rail 1-2 for ensuring that the hoisting device 3 can be placed horizontally into the first carrier rail 1-2. Notches corresponding one by one to the track wheels at the bottom of the transport trolley 2 are provided on the second carrier rail 1-3 for ensuring that the transport trolley 2 can be placed horizontally into the second carrier rail 1-3. Still as Figure 1 , one end of the lining transport rack 1 includes rollers 1-1 respectively fixed at one end of the two second carrier rails 1-3. During use, the two rollers 1-1 are rollingly lapped on the inner side of the feed port end cover. When the ball mill is turned, the lining transport rack 1 is always kept horizontal by the rotation of the rollers 1-1. The other end of the lining transport rack 1 is lapped on the outside of the discharge port.

[0029] As Figure 1 and Figure 5, there is an installation rack 5 for transporting and installing the inner lining plates of the cylinder body below the lining plate transport rack 1. The installation rack 5 includes a support rack 5-5. The support rack 5-5 is a rectangular structure, including two parallel vertical rods. Horizontally supporting rods are vertically connected to the top and bottom of the vertical rods respectively. The installation rack 5 further includes installation guide rails 5-1 vertically installed on the two vertical rods of the support rack 5-5. A guide rail clamp 5-4 for clamping with the installation guide rail 5-1 is sleeved on the vertical rod. A number of positioning through holes 5-7 and positioning pins 5-6 cooperating with the positioning through holes 5-7 are arranged at fixed intervals along the height direction on the vertical rod. The positioning pin 5-6 cooperates with the positioning through hole 5-7 to limit the position of the guide rail clamp 5-4. The height of the installation guide rail 5-1 can be adjusted by changing the position of the positioning pin 5-6 to adjust the height of the guide rail clamp 5-4 up and down. One end of the installation guide rail 5-1 close to the inner wall of the ball mill cylinder body bends downward as the installation end. A support leg 5-2 is connected to the front end of the installation end. A first limiting member 5-3 is provided on the support leg 5-2 for clamping with the lifting lining plate to fix the position of the installation end. The installation rack 5 further includes an installation trolley 6 rolling on the installation guide rail 5-1. A second limiting member 6-1 is provided at one end of the installation trolley 6 close to the support rack 5-5. The second limiting member 6-1 includes a steel plate. Angle irons are welded on both sides of the steel plate. The distance between the angle irons is equal to the length of the upper surface of the lifting lining plate, so that the lining plate can just be clamped between the angle irons, facilitating the positioning of the lining plate. After the installation trolley 6 moves along the installation guide rail 5-1, a group of lining plates can enter the installation position in the correct posture without secondary adjustment. In addition, the second limiting member 6-1 cooperating with the support rack 5-5 can also be used to prevent the installation trolley 6 from sliding out of the installation guide rail. The installation trolley 6 includes a carrying platform. A carrying structure protruding from the surface of the carrying platform is fixed on the carrying platform. The carrying structure is used to support the lining plate so that the bottom surface of the lining plate is higher than the surface of the carrying platform.

[0030] Figure 6 It is a schematic diagram for installing the lining plate by using the ball mill bar lining plate replacement device.

[0031] Before installation, the old lining plates to be replaced on the inner wall of the ball mill cylinder body need to be removed as a whole. Since there are many lining plates, it is necessary to use the lining plate transport rack 1, the hoisting device 3 and the transport trolley 2 to transport the old lining plates out of the cylinder body in batches. After that, the bar lining plates are transported and installed with the help of the present utility model. To optimize the process, the transportation out and transportation in of the lining plates can be carried out alternately. When hoisting with the hoisting device 3, vertical lifting and lowering should be ensured to prevent the lining plate from swaying due to the movement of the hoisting device 3 after being lifted, resulting in an object hitting accident.

[0032] First, use the ball mill bar lining plate replacement device to install the lining plate at the bottom of the ball mill cylinder body. Use the lining plate transport rack 1 and the transport trolley 2 to transport the lining plate into the predetermined position in the cylinder body. Stop pushing the transport trolley 2. Use the hoisting device 3 to lower the lining plate to the position to be installed. After that, complete the installation of the lining plate at the bottom of the ball mill cylinder body.

[0033] Then, the side lining of the cylinder is installed. The side lining is installed on the basis of the installed lining. The mounting frame 5 is moved to the corresponding position, and the mounting end of the mounting rail 5-1 is adjusted to be clamped in the recessed part formed by the installed lifting lining and the cylinder lining. The first limiting member 5-3 on the support leg 5-2 is clamped with the two ends of the lifting lining, and the height and angle of the mounting rail 5-1 are adjusted according to the height of the installation position. A group of linings can be transported and installed at the same time. To maintain stability, the heavier lifting lining is placed at the bottom and the lighter cylinder lining is placed at the top. The transportation and installation of the linings are carried out in accordance with the above stacking order. The lining is transported to the bottom of the lifting device 3 by the transport trolley 2, and the lining is lifted with the help of the lifting device 3, and the transport trolley 2 is pushed away, and the lining is lowered and placed on the installation trolley 6 under the lifting device 3. During this process, the direction of the lining is manually adjusted so that it is engaged with the second limiting member 6-1 to complete the correction of the direction of the lining. After the lining is aligned and dropped to the carrying platform of the installation trolley 6, the lining installation trolley 6 is pushed. Since the installation guide rail 5-1 is inclined toward the position to be installed, the installation trolley 6 moves toward the position to be installed along the installation guide rail 5-1 under the action of thrust and gravity. The installation trolley 6 stops moving under the action of the lining already installed on the cylinder wall, and the lining on it separates from the installation trolley 6 due to inertia and enters the lining to be installed position in sequence according to the stacking order, completing the installation of the strip liner.

[0034] When the installation position is too high and exceeds the installation range of the mounting frame 5, the working position should be changed, or the cylinder body should be rotated by a certain angle by turning the wheel to lower the height of the installed liner to continue the installation of the strip liner.

[0035] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A device for replacing strip liners of a ball mill, comprising a liner transport frame (1) which passes through a discharge port of the ball mill and horizontally penetrates the interior of a cylinder of the ball mill when in use, characterized in that: The ball mill strip liner replacement device also includes a lifting device (3) and a transport trolley (2) which are respectively connected in a rolling manner to the liner transport frame (1); The ball mill strip liner replacement device also includes a mounting frame (5) arranged below the liner transport frame (1) and used for transporting and installing the strip liner in the ball mill cylinder; The mounting frame (5) comprises a support frame (5-5), the support frame (5-5) is a rectangular structure, comprising vertical poles arranged in parallel, the top and bottom of the vertical poles being respectively vertically connected to transverse support poles; the mounting frame (5) also comprises mounting rails (5-1) vertically mounted on the vertical poles on both sides of the support frame (5-5) and having a position that can be adjusted up and down; One end of the mounting rail (5-1) close to the inner wall of the ball mill cylinder is bent downward as a mounting end, and a support leg (5-2) is connected to the front end of the mounting end. The support leg (5-2) comprises a first position-limiting member (5-3) for clamping with a lifting liner to fix the position of the mounting end; The mounting frame (5) further comprises a mounting trolley (6) which is rollingly connected to the mounting guide rail (5-1); a second limiting member (6-1) for assisting in positioning the lifting liner is provided at one end of the mounting trolley (6) close to the support frame (5-5).

2. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The lining plate transport frame (1) comprises a first carrier rail (1-2) and a second carrier rail (1-3) connected to the lower side of the first carrier rail (1-2); the lifting device (3) is rollably mounted on the first carrier rail (1-2), and the transport trolley (2) is rollably mounted on the second carrier rail (1-3).

3. The device for replacing the strip liner of a ball mill according to claim 2, characterized in that: The lining plate transport frame (1) comprises rollers (1-1) respectively fixed to one end of two second carrying guide rails (1-3).

4. The device for replacing the strip liner of a ball mill according to claim 2, characterized in that: The first carrier guide rail (1-2) is provided with notches corresponding one-to-one to the rail wheels at the bottom of the lifting device (3), so as to ensure that the lifting device (3) can be placed in the first carrier guide rail (1-2) in a horizontal posture; the second carrier guide rail (1-3) is provided with notches corresponding one-to-one to the rail wheels at the bottom of the transport trolley (2), so as to ensure that the transport trolley (2) can be placed in the second carrier guide rail (1-3) in a horizontal posture.

5. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The first limiting component (5-3) comprises a baffle plate perpendicular to the mounting guide rail (5-1), and both ends of the baffle plate are respectively connected to the limiting components.

6. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The vertical pole is sleeved with a guide rail clamp (5-4) for clamping and mounting the guide rail (5-1).

7. The device for replacing the strip liner of a ball mill according to claim 6, characterized in that: The vertical pole has a plurality of positioning through holes (5-7) arranged at regular intervals in the height direction, and the support frame (5-5) further comprises a positioning pin (5-6) cooperating with the positioning through hole (5-7), and the positioning pin (5-6) cooperates with the positioning through hole (5-7) to limit the position of the guide rail clamp (5-4).

8. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The installation trolley (6) comprises a carrying platform, on which is fixed a carrying structure protruding from the surface of the carrying platform, the carrying structure being used to support the lining plate so that the bottom surface of the lining plate is higher than the surface of the installation guide rail (5-1).

9. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The lifting device (3) comprises a manual lifting device.

10. The device for replacing the strip liner of a ball mill according to claim 1, characterized in that: The lifting device (3) comprises a light electric lifting device.

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