Magnetic wear-resistant and high-temperature-resistant lining prefabricated part of vertical mill

Abstract

The utility model discloses a magnetic wear-resistant and high-temperature-resistant lining prefabricated part of a vertical mill, which belongs to the field of vertical mills and comprises a lining prefabricated part body, the outer side face and the inner side face of the lining prefabricated part body are both parallel to the inner side wall of a cylinder, and an elastic element is arranged between the lining prefabricated part body and the inner side wall of the body. And the elastic element pushes the lining prefabricated part body to always move towards the circle center direction of the cylinder body. When the lining prefabricated part is installed, the elastic element is located between the lining prefabricated part body and the inner side wall of the barrel body and is in a compressed state, so that the elastic element pushes the lining prefabricated part body to move towards the inner side all the time and tightly abuts against the blocking mechanism, and when the lining prefabricated part body is impacted by materials, the blocking mechanism is not damaged. The produced impact force pushes the lining prefabricated part body to move to compress the elastic element, the impact force of materials is effectively buffered through compression deformation of the elastic element, the damage effect of the impact force of the materials on the lining prefabricated part body is reduced, and the service life of the lining prefabricated part body is prolonged.

Description

Technical Field

[0001] The utility model relates to a vertical mill, in particular to a magnetic wear-resistant and high-temperature resistant lining prefabricated part of the vertical mill. Background Art

[0002] Vertical mill is a grinding equipment that integrates fine crushing, drying, grinding, powder selection and conveying. It is widely used in the grinding and ultra-fine grinding of various solid materials in industries such as cement, building materials, electricity, metallurgy, chemical industry and non-metallic minerals. The motor drives the grinding disc to rotate through the vertical reducer. The solid raw materials enter the center of the grinding disc from the feed port through the air-locking feeding device. Under the action of the centrifugal field, they are thrown to the periphery of the grinding disc and crushed by repeated rolling of the grinding roller. The crushed materials overflow from the edge of the grinding disc, and the powdered materials are carried up by the high-speed airflow rising from the bottom of the machine. When the rising airflow and powdered materials pass through the powder selector at the top of the mill, the coarse powder is separated and falls into the center of the grinding disc for re-grinding under the action of the fast-rotating rotor, and the fine powder is discharged from the top of the mill with the airflow and collected in the dust collecting device, which is the product.

[0003] The internal protection of the vertical mill cylinder is a magnetic lining, which is a technology that relies on the magnetism of a permanent magnet to adsorb iron-containing materials or grinding media on the lining surface to form a protective layer.

[0004] After searching, the patent "A special magnetic lining for high-power vertical mill" with announcement number CN218609693U discloses the following technical solution: it includes an arc frame, a plurality of placement cavities are arranged in the arc frame, a composite magnetic pole group is arranged in the placement cavity, a plurality of wear-resistant rods are arranged along the arc frame on the outer arc surface of the arc frame, the plurality of wear-resistant rods are parallel to each other, a plurality of flow blocking grooves are opened on the inner arc surface of the arc frame, and the flow blocking grooves are located between two adjacent wear-resistant rods. This application has the effect of reducing the wear of the magnetic lining and increasing the service life of the magnetic lining;

[0005] The above scheme protects the surface of the magnetic lining by arranging wear-resistant rods and wear-resistant grooves on the side of the magnetic lining that contacts the material or medium, thereby extending the service life of the magnetic lining. However, the magnetic lining and the side wall of the vertical mill body are fixedly arranged and have no buffering function. When the magnetic lining is impacted by the material, the impact force generated will directly act on the outer surface of the magnetic side plate, thereby damaging the outer surface of the magnetic lining, reducing the service life of the magnetic lining. Utility Model Content

[0006] The purpose of the utility model is to provide a magnetic wear-resistant and high-temperature resistant lining preform of a vertical mill, which has the advantage of being able to buffer the impact force of materials during use, reduce the destructive effect of the impact force of the materials on the lining preform body, and effectively increase the service life of the lining preform body.

[0007] The utility model adopts the following technical scheme: a magnetic wear-resistant and high-temperature resistant lining preform of a vertical mill, comprising a lining preform body, the outer side surface and the inner side surface of the lining preform body are parallel to the inner side wall of the cylinder, an elastic element is arranged between the lining preform body and the inner side wall of the body, the elastic element pushes the lining preform body to always move toward the center of the cylinder, and a blocking mechanism of the lining preform body is also arranged on the inner side wall of the cylinder, the blocking mechanism prevents the lining preform body from moving toward the center of the cylinder.

[0008] Furthermore, the blocking mechanism includes a support rod fixedly arranged on the side wall of the cylinder, a blocking plate fixedly arranged on the inner end of each support rod, and the outer side surface of each blocking plate is adapted to the inner side surface of the lining preform body; positioning grooves are provided at the intersection of each pair of side walls of each lining preform body; and the support rod passes through a circular hole formed by the positioning grooves of four adjacent lining preform bodies.

[0009] Furthermore, a positioning column is fixedly provided at the intersection of the support rod and the blocking sheet, the diameter of the positioning column is larger than the diameter of the support rod, and the outer side surface of the positioning column is in contact with the inner side wall of the positioning groove of the corresponding lining preform body.

[0010] Furthermore, the elastic element may be a first spring.

[0011] Furthermore, a guide rod is fixedly provided on the outer side of the lining preform body, a sleeve hole is opened on the cylinder at a position corresponding to the lining preform body, and the outer end of the guide rod passes through the sleeve hole of the cylinder and protrudes from the outer side of the cylinder.

[0012] Furthermore, a fixing block is fixedly provided on the outer side surface of the lining preform body, a connecting hole is formed on the fixing block, and the inner end of the guide rod is inserted into the connecting hole to connect the guide rod and the fixing block together; a first clamping portion is provided on the outer surface of the inner end of the guide rod, and a second clamping portion is provided inside the fixing block, and the first clamping portion and the second clamping portion cooperate and lock with each other to prevent the guide rod and the fixing block from rotating relative to each other.

[0013] Furthermore, the first engaging portion is a locking pin arranged at the inner end of the guide rail, and the second engaging portion includes a semi-open through groove opened on the outer side surface of the fixing block and connected with the connecting hole, and the inner side surface of the fixing block is provided with a accommodating cavity connected with the connecting hole, and a rotating space is formed between the fixing block and the lining preform body.

[0014] Furthermore, the rotation space is a rotation groove provided on the outer surface of the inner plate at a position corresponding to the guide rod.

[0015] Furthermore, a second spring is arranged in the rotating groove.

[0016] Furthermore, the outer end of the guide rod protruding from the outer side surface of the cylinder is threadedly connected with a screw sleeve.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. During installation, the utility model places the lining preform body between the corresponding blocking mechanisms of the four lining preform bodies, so that the lining preform body is supported and positioned, and the elastic element is located between the lining preform body and the inner wall of the cylinder, in a compressed state, so that the elastic element pushes the lining preform body to always move inward and press the blocking mechanism tightly, and when the lining preform body is impacted by the material, the impact force generated pushes the lining preform body to move and compresses the elastic element, and the impact force of the material is effectively buffered by the compressive deformation of the elastic element, thereby reducing the destructive effect of the impact of the material on the lining preform body and improving the service life of the lining preform body.

[0019] 2. The utility model is provided with positioning columns, support rods, blocking plates and a lining preform body. When the lining preform body is impacted by materials and moves, the positioning groove of the lining preform body moves along the positioning columns, so that the positioning columns and the positioning grooves cooperate to guide the moving direction of the lining preform body. At the same time, the positioning columns also support the lining preform body, thereby achieving the purpose of effectively guiding the moving direction of the lining preform body when it moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure inside the cylinder of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the lining prefabricated body and the blocking sheet of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the grinding disc of the utility model;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the barrier sheet of the utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the support column of the utility model;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the lining prefabricated component body of the utility model;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing block of the utility model;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second spring of the utility model;

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the lining prefabricated component body and the fixed block of the utility model in the separated state.

[0030] In the figure, 1, the lining preform body; 2, the cylinder; 3, the grinding disc; 4, the support rod; 5, the blocking plate; 6, the positioning groove; 7, the positioning column; 8, the first spring; 9, the guide rod; 10, the sleeve hole; 11, the screw sleeve; 12, the fixing block; 13, the connecting hole; 14, the bayonet; 15, the semi-open through groove; 16, the accommodating cavity; 17, the rotating groove; 18, the second spring. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and embodiments:

[0032] The magnetic wear-resistant and high-temperature resistant lining prefabricated part of the vertical mill described in the utility model is arranged on the inner wall of the vertical mill. The existing vertical mill comprises a cylinder 2, the base of the cylinder 2 is provided with a base, the upper end surface of the base is rotatably connected with a grinding disc 3, and the upper end surface of the grinding disc 3 is evenly provided with grinding disc lining plates along the circumference.

[0033] The magnetic wear-resistant and high-temperature resistant lining preform of the vertical mill described in the utility model comprises a lining preform body 1, the outer side surface and the inner side surface of the lining preform body 1 are parallel to the inner side wall of the cylinder 2, an elastic element is arranged between the lining preform body 1 and the inner side wall of the body, the elastic element pushes the lining preform body 1 to always move toward the center direction of the cylinder 2, and a blocking mechanism of the lining preform body 1 is also arranged on the inner side wall of the cylinder 2, and the blocking mechanism prevents the lining preform body 1 from moving toward the center direction of the cylinder 2. When the vertical mill is in use, the material to be crushed is added from the top of the cylinder 2 and falls onto the grinding disc 3. The upper end surface of the grinding disc 3 is provided with three grinding rollers, and the outer surface of the grinding rollers fits the outer surface of the grinding disc 3. When in use, the grinding disc 3 rotates to drive the grinding rollers to rotate through friction. At the same time, the material on the grinding disc 3 moves to the outer edge of the grinding disc 3 under the action of centrifugal force, and then enters the fitting place between the grinding rollers and the grinding disc 3. The grinding rollers and the grinding disc 3 fit together and rotate relative to each other, so that the material is ground and crushed. The ground material continues to The liner preform body 1 has the function of removing the iron filings in the crushed material. In normal use, when the material to be crushed is added into the cylinder 2 from the top of the cylinder 2, the material may impact the liner preform body 1. The impact force generated will push the liner preform body 1 to compress the elastic element. Through the deformation of the elastic element, the impact force of the material is effectively buffered, thereby reducing the destructive effect of the impact of the material on the liner preform body 1 and improving the service life of the liner preform body 1.

[0034] During installation, the lining preform body 1 is placed between the blocking mechanism and the inner wall of the cylinder 2, and the elastic element is compressed so that the elastic element always pushes the lining preform body 1 to move toward the center of the cylinder 2, so that the lining preform body 1 is pressed against the blocking mechanism. After each lining preform body 1 is installed, a complete lining preform body 1 layer will be formed inside the cylinder 2 near the inner wall. When the blocking mechanism blocks the lining preform body 1, it also supports and positions each lining preform body 1.

[0035] The blocking mechanism includes a support rod 4 fixedly arranged on the side wall of the cylinder 2, and a blocking piece 5 is fixedly arranged on the inner end of each support rod 4, and the outer side surface of each blocking piece 5 is adapted to the inner side surface of the lining preform body 1; a positioning groove 6 is opened at the intersection of each pair of side walls of the lining preform body 1; the support rod 4 passes through the circular hole formed by the positioning grooves 6 of four adjacent lining preform bodies 1; during installation, the lining preform body 1 is placed between the blocking piece 5 and the inner wall of the cylinder 2, so that the four positioning grooves 6 of the lining preform body 1 are all matched with the corresponding support rod 4, so that the four corners of the lining preform body 1 are positioned and supported by the matching of the positioning grooves 6 and the support rod 4, and at the same time, the elastic element is located between the lining preform body 1 and the inner wall of the cylinder 2 and is compressed, and the elastic element pushes the lining preform body 1 to always move toward the center of the cylinder 2, so that the inner side surface of the lining preform body 1 is pressed against the outer side surface of the blocking piece 5.

[0036] In order to achieve the purpose of strengthening the support and positioning of the lining preform body 1, in the present embodiment, a positioning column 7 is fixedly provided at the intersection of the support rod 4 and the blocking plate 5, the diameter of the positioning column 7 is larger than the diameter of the support rod 4, and the outer side surface of the positioning column 7 is in contact with the inner wall of the corresponding positioning groove 6 of the lining preform body 1; when in use, when the material to be crushed is added to the cylinder 2, it will have an impact on the lining preform body 1 inside the cylinder 2, and the generated impact will do work on the lining preform body 1, so that the lining preform body 1 moves toward the inner wall of the cylinder 2, compressing the elastic element, and while the lining preform body 1 moves, the moving direction of the lining preform body 1 is guided by the cooperation of the positioning groove 6 and the positioning column 7, thereby increasing the stability of the movement of the lining preform body 1.

[0037] In this embodiment, the elastic element may be a first spring 8 ; the first spring 8 is compressed and deformed to store energy and push the lining preform body 1 to move toward the center of the cylinder 2 .

[0038] In order to increase the stability of the assembly of the lining preform body 1, in this embodiment, a guide rod 9 is fixedly provided on the outer side of the lining preform body 1, and a sleeve hole 10 is opened on the cylinder 2 at the corresponding position of the lining preform body 1. The outer end of the guide rod 9 passes through the sleeve hole 10 of the cylinder 2, protrudes from the outer side of the cylinder 2, and is provided with a screw sleeve 11; during installation, the guide rod 9 of the lining preform body 1 is passed through the cylinder 2, so that the inner side of the lining preform body 1 contacts the outer side of the corresponding blocking piece 5, and at the same time, the first spring 8 is located between the lining preform body 1 and the inner side wall of the cylinder 2 and is compressed; so that the inner side of the lining preform body 1 conflicts with the outer side of the blocking piece 5, and when the lining preform body 1 is compressed When impacted by the material, the lining preform body 1 moves radially outward along the cylinder 2, driving the guide rod 9 to move outward in the sleeve hole 10. The function of the guide rod 9 makes the lining preform body 1 move more stably during operation, and makes the lining preform body 1 more strongly supported. After the lining preform body 1 is installed, the screw sleeve 11 is screwed to the outer end of the guide rod 9, and the screw sleeve 11 should be spaced from the outer side surface of the cylinder 2 by a set distance, that is, when the lining preform body 1 is in conflict with the corresponding blocking piece 5, the screw sleeve 11 of the outer end knob of the guide rod 9 should be spaced from the outer side surface of the cylinder 2 by a set distance, and when the lining preform body 1 moves outward, it drives the guide rod 9 and the screw sleeve 11 to move outward synchronously.

[0039] Due to the addition of the guide rod 9, it is not convenient to install the lining preform body 1. In order to solve this problem, in this embodiment, a fixing block 12 is fixedly provided on the outer side surface of the lining preform body 1, and a connecting hole 13 is formed on the fixing block 12. The inner end of the guide rod 9 is inserted into the connecting hole 13 to connect the guide rod 9 and the fixing block 12 together; the outer surface of the inner end of the guide rod 9 is provided with a first clamping portion, and the interior of the fixing block 12 is provided with a second clamping portion, and the first clamping portion and the second clamping portion cooperate and lock with each other to prevent the guide rod 9 and the fixing block 12 from rotating relative to each other; during installation, first, the lining preform body 1 is clamped between the corresponding four positioning columns 7, and the inner side surface of the lining preform body 1 is aligned with the corresponding blocking sheet 5 The outer side surface of the cylinder 2 is in contact with each other, and the first spring 8 is located between the inner side wall of the lining preform body 1 and the cylinder 2. The first spring 8 is in a compressed state. Then the inner end of the guide rod 9 is inserted into the sleeve hole 10 from the outside of the cylinder 2, and the guide rod 9 is continued to be inserted so that the inner end of the guide rod 9 is inserted into the connecting hole 13 of the fixing block 12, and the first engaging portion and the second engaging portion cooperate and lock with each other to prevent the guide rod 9 and the fixing block 12 from rotating relative to each other, and then the screw sleeve 11 is turned to the outer end of the guide rod 9, and the screw sleeve 11 is spaced a set distance from the outer side surface of the cylinder 2. Since the guide rod 9 and the fixing block 12 cannot rotate relative to each other, when the screw sleeve 11 is turned to the outer end of the guide rod 9, the guide rod 9 will not rotate with it.

[0040] In this embodiment, the first engaging portion is a locking pin 14 arranged at the inner end of the guide rod 9, and the second engaging portion is a semi-open through groove 15 opened on the outer side surface of the fixing block 12 and connected with the connecting hole 13. The inner side surface of the fixing block 12 is provided with a receiving cavity 16 connected with the connecting hole 13, and a rotating space is formed between the fixing block 12 and the lining preform body 1. When the inner end of the guide rod 9 is inserted into the connecting hole 13, the bayonet 14 enters the semi-open through groove 15, and the guide rod 9 is continued to be inserted, so that the inner end of the guide rod 9 and the bayonet 14 enter the rotating space, and then the guide rod 9 is rotated, so that the guide rod 9 drives the bayonet 14 to rotate, so that the bayonet 14 rotates to a position aligned with the accommodating chamber 16, and then the guide rod 9 is pulled outward in the opposite direction, so that the bayonet 14 on the guide rod 9 enters the accommodating chamber 16, so that the accommodating chamber 16 restricts the positioning of the bayonet 14, and at this time, the guide rod 9 is rotated, and the bayonet 14 is restricted by the accommodating chamber 16, and the guide rod 9 cannot be rotated, so that the screw sleeve 11 is screwed to the outer end of the guide rod 9.

[0041] In this embodiment, the rotation space is a rotation groove 17 provided on the outer surface of the liner preform body 1 at a position corresponding to the guide rod 9. When the guide rod 9 is inserted into the connection hole 13 of the fixing block 12, and the bayonet 14 enters the semi-open through groove 15 and enters the rotation groove 17, the guide rod 9 is rotated to drive the bayonet 14 to rotate in the rotation groove 17, so that the bayonet 14 is aligned with the accommodating cavity 16, and then the guide rod 9 is pulled outward in the opposite direction, so that the bayonet 14 enters the accommodating cavity 16, and the first engaging portion and the second engaging portion are locked in cooperation with each other.

[0042] In order to make the engagement of the guide rod 9 and the fixed block 12 through the latch 14 and the accommodating chamber 16 more stable, in the present embodiment, a second spring 18 is provided in the rotating groove 17; when the inner end of the guide rod 9 is inserted into the connecting hole 13 and enters into the rotating groove 17, the inner end of the guide rod 9 will compress the second spring 18. When the guide rod 9 is rotated so that the guide rod 9 drives the latch 14 to align with the accommodating chamber 16, the second spring 18 will push the guide rod 9 to move outward so that the latch 14 enters into the accommodating chamber 16. When it is necessary to disassemble the liner preform body 1, first turn the knob to disassemble the screw sleeve 11, and then press the guide rod 9 inwardly, so that the guide rod 9 overcomes the force of the second spring 18 and moves inwardly, and drives the latch 14 to move from the accommodating chamber 16 to the rotating groove 17, and rotate the guide rod 9 so that the guide rod 9 drives the latch 14 to align with the semi-open through groove 15. At this time, the second spring 18 pushes the guide rod 9 to move outward, so that the latch 14 passes through the semi-open through groove 15 until the guide rod 9 is completely separated from the fixing block 12, and then the liner preform body 1 can be disassembled, and then the guide rod 9 can be pulled out from the inside of the cylinder 2; during normal use, when the liner preform body 1 is impacted by materials, the liner preform body 1 moves outward to drive the fixing block 12 to move The movement of the fixed block 12 drives the second spring 18 to move outward, and then the second spring 18 pushes the guide rod 9 to move outward of the cylinder 2, so that the outer end of the guide rod 9 and the screw sleeve 11 move outward, and there is no resistance to the movement of the guide rod 9. Therefore, when the fixed block 12 drives the guide rod 9 to move outward, the second spring 18 is not subjected to force. When the fixed block 12 moves outward, the first spring 8 is compressed and deformed at the same time, so as to cushion the impact on the lining preform body 1. In addition, during normal use, if it is found that some screw sleeves 11 protrude more than other screw sleeves 11, it means that the corresponding lining preform body 1 is stuck, or the first spring 8 is damaged, and the lining preform body 1 can be repaired.

[0043] The working principle of the utility model is as follows: during installation, first insert the lining preform body 1 between the corresponding four positioning columns 7, and make the inner side surface of the lining preform body 1 fit with the outer side surface of the corresponding blocking sheet 5. At this time, the first spring 8 is located between the lining preform body 1 and the inner side wall of the cylinder 2, and the first spring 8 is in a compressed state. Then, the inner end of the guide rod 9 is inserted into the sleeve hole 10 from the outside of the cylinder 2, and the guide rod 9 is continued to be inserted so that the inner end of the guide rod 9 is inserted into the connecting hole 13 of the fixing block 12, and the first engaging portion and the second engaging portion are matched and locked with each other, that is, When the inner end of the guide rod 9 is inserted into the connecting hole 13 and enters the rotating groove 17, the inner end of the guide rod 9 will compress the second spring 18. When the guide rod 9 is rotated so that the guide rod 9 drives the latch 14 to align with the accommodating chamber 16, the second spring 18 will push the guide rod 9 to move outward, so that the latch 14 enters the accommodating chamber 16. In normal use, when the liner preform body 1 is impacted by the material, the liner preform body 1 moves outward to drive the fixing block 12 to move, and the movement of the fixing block 12 drives the second spring 18 and the guide rod 9 to move synchronously to the outside of the cylinder 2, so that the guide rod 9 can be moved outward. The outer end of the rod 9 and the screw sleeve 11 move outward, and there is no resistance to the movement of the guide rod 9. Therefore, when the fixed block 12 drives the guide rod 9 to move outward, the second spring 18 is not subjected to force. When the fixed block 12 moves outward, the first spring 8 is compressed at the same time. The first spring 8 is deformed under pressure to cushion the impact on the lining preform body 1. In addition, during normal use, if it is found that some screw sleeves 11 protrude more than other screw sleeves 11, it means that the corresponding lining preform body 1 is stuck, or the first spring 8 is damaged, and the lining preform body 1 can be repaired. When disassembling the lining preform body 1, first turn the knob to remove the nut 11, then press the guide rod 9 inward, so that the guide rod 9 overcomes the force of the second spring 18 and moves inward, and drives the pin 14 to move from the accommodating cavity 16 to the rotating groove 17, rotate the guide rod 9, so that the guide rod 9 drives the pin 14 to align with the semi-open through groove 15, at this time, the second spring 18 pushes the guide rod 9 to move outward, so that the pin 14 passes through the semi-open through groove 15, until the guide rod 9 is completely separated from the fixing block 12, and then the lining preform body 1 can be disassembled, and then the guide rod 9 can be pulled out from the inside of the cylinder 2.

Claims

1. A magnetic wear-resistant and high-temperature resistant lining prefabricated part for a vertical mill, characterized by: The invention comprises a lining preform body (1), the outer side surface and the inner side surface of the lining preform body (1) are parallel to the inner side wall of the cylinder (2), an elastic element is arranged between the lining preform body (1) and the inner side wall of the body, the elastic element pushes the lining preform body (1) to always move in the direction of the center of the cylinder (2), and a blocking mechanism of the lining preform body (1) is also arranged on the inner side wall of the cylinder (2), the blocking mechanism prevents the lining preform body (1) from moving in the direction of the center of the cylinder (2).

2. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 1 is characterized in that: The blocking mechanism comprises a support rod (4) fixedly mounted on the side wall of the cylinder (2); a blocking sheet (5) is fixedly mounted on the inner end of each support rod (4); the outer side surface of each blocking sheet (5) is matched with the inner side surface of the lining preform body (1); positioning grooves (6) are provided at the intersection of two side walls of each lining preform body (1); and the support rod (4) passes through a circular hole formed by the positioning grooves (6) of four adjacent lining preform bodies (1).

3. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 2 is characterized in that: A positioning column (7) is fixedly provided at the intersection of the support rod (4) and the blocking sheet (5); the diameter of the positioning column (7) is larger than the diameter of the support rod (4); and the outer side surface of the positioning column (7) is in contact with the inner side wall of the positioning groove (6) of the corresponding lining prefabricated component body (1).

4. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 3 is characterized in that: The elastic element may be a first spring (8).

5. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 4 is characterized in that: A guide rod (9) is fixedly provided on the outer side surface of the lining preform body (1); a sleeve hole (10) is provided on the cylinder (2) at a position corresponding to the lining preform body (1); and the outer end of the guide rod (9) passes through the sleeve hole (10) of the cylinder (2) and protrudes from the outer side surface of the cylinder (2).

6. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 5 is characterized in that: A fixing block (12) is fixedly arranged on the outer side surface of the lining preform body (1), a connecting hole (13) is formed on the fixing block (12), and the inner end of the guide rod (9) is inserted into the connecting hole (13) so that the guide rod (9) and the fixing block (12) are connected together; a first clamping portion is arranged on the outer surface of the inner end of the guide rod (9), and a second clamping portion is arranged inside the fixing block (12), and the first clamping portion and the second clamping portion cooperate to lock with each other to prevent the guide rod (9) and the fixing block (12) from rotating relative to each other.

7. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 6 is characterized in that: The first engaging portion is a locking pin (14) arranged at the inner end of the guide rail, the second engaging portion comprises a semi-open through groove (15) provided on the outer side surface of the fixing block (12) and connected to the connecting hole (13), the inner side surface of the fixing block (12) is provided with a receiving cavity (16) connected to the connecting hole (13), and a rotation space is formed between the fixing block (12) and the liner preform body (1).

8. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 7 is characterized in that: The rotation space is a rotation groove (17) provided on the outer surface of the inner plate at a position corresponding to the guide rod (9).

9. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 8, characterized in that: A second spring (18) is arranged in the rotating groove (17).

10. The vertical mill magnetic wear-resistant and high temperature resistant lining preform according to claim 5, characterized in that: The outer end of the guide rod (9) protruding from the outer side surface of the cylinder (2) is threadedly connected with a screw sleeve (11).

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