Device for preventing wear on coal mill inlet and outlet pulverized coal pipe

Abstract

This utility model relates to the field of coal mill technology and discloses a device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill. It includes a worktable, with a shock-absorbing mechanism fixedly connected to the top of the outer wall of the worktable. The shock-absorbing mechanism reduces wear through vibration. A telescopic mechanism is installed on the top of the outer wall of the shock-absorbing mechanism for automatically conveying materials. The shock-absorbing mechanism includes a base fixedly connected to the top of the outer wall of the worktable. A limit block is fixedly connected to the top of the outer wall of the base. A threaded rod is slidably connected to the middle of the inner wall of the limit block. A rotating handle is fixedly connected to the right side of the outer wall of the threaded rod. In this utility model, rotating the rotating handle drives the threaded rod to rotate, allowing the slider at the other end to slide on the base, adjusting the height of the support platform and improving the shock absorption resilience. The limit block constrains the working space of the threaded rod, and the material pressure is transmitted to the support block and connecting block via the support platform.

Description

Technical Field

[0001] This utility model relates to the field of coal mill technology, and in particular to a device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill. Background Technology

[0002] The coal mill includes a shell forming a closed grinding space, a feed inlet for material to enter, grinding components inside for material crushing, a separation device to screen the ground material, a discharge channel to discharge qualified material, a transmission mechanism connecting the power source and the grinding components, a support frame to fix the overall structure, the shell and frame are assembled by connectors, and the internal components are connected by bearings to ensure smooth operation. The bottom of the mill has a base to enhance stability. All components work together to form a complete material grinding system.

[0003] The structural components of a coal mill include a casing that forms an enclosed working space, a feed hopper to guide material in, grinding rollers inside for grinding, a grinding disc that works in conjunction with the grinding rollers, a separation chamber for screening ground materials, a discharge pipe for discharging processed materials, a drive shaft connecting to the power mechanism, and a support base at the bottom to fix the overall structure. All components are assembled via bearings and connectors. However, existing coal mill devices cannot buffer the impact force of material flow at the feed and discharge inlets, resulting in direct wear on the coal drop pipe and outlet powder pipe, shortening component lifespan and reducing the durability and reliability of the device. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a device to prevent wear on the coal chute and outlet powder pipe of a coal mill. It aims to improve the problem that the existing coal mill device cannot buffer the impact force of material flow at the inlet and outlet, which causes the material to directly wear on the coal chute and outlet powder pipe, shortening the service life of the components and reducing the durability and reliability of the device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill, comprising a workbench, a shock-absorbing mechanism fixedly connected to the top of the outer wall of the workbench, the shock-absorbing mechanism being used to reduce wear through shock absorption, a telescopic mechanism installed on the top of the outer wall of the shock-absorbing mechanism, the telescopic mechanism being used to automatically convey materials, the shock-absorbing mechanism comprising a base, the base being fixedly connected to the top of the outer wall of the workbench, a limit block being fixedly connected to the top of the outer wall of the base, a threaded rod being slidably connected to the middle of the inner wall of the limit block, a rotating handle being fixedly connected to the right side of the outer wall of the threaded rod, a slider being slidably connected to the top of the outer wall of the base, the slider being engaged with the threaded rod, and an elastic component being installed on the top of the outer wall of the slider.

[0006] As a further description of the above technical solution:

[0007] The elastic component includes a support platform, which is installed on the top of the outer wall of the base. Support blocks are fixedly connected to the front and rear sides of the bottom of the outer wall of the support platform. Two rotating shafts are fixedly connected to the right side of the outer wall of the two support blocks. Connecting blocks are fixedly connected to the front and rear sides of the top of the outer wall of the slider. Rotating shafts are rotatably connected to adjacent sides of the inner wall of the two connecting blocks. Movable rings are rotatably connected to adjacent sides of the outer wall of the two rotating shafts. A spring is fixedly connected to the middle of the inner wall of the movable ring.

[0008] As a further description of the above technical solution:

[0009] The telescopic mechanism includes a second base, which is fixedly connected to the top of the outer wall of the workbench. A connecting plate is fixedly connected to the rear side of the outer wall of the second base, and a sliding groove is fixedly connected to the rear side of the outer wall of the connecting plate. A drive assembly is slidably connected to the top of the outer wall of the sliding groove.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a motor, which is fixedly connected to the top of the outer wall of the base. A rotating bar is fixedly connected to the output end of the motor. A rotating shaft is rotatably connected to the left side of the outer wall of the rotating bar. A rotating bar is rotatably connected to the left side of the outer wall of the rotating shaft. A sliding column is rotatably connected to the bottom of the outer wall of the rotating bar. A push plate is fixedly connected to the left side of the outer wall of the sliding column.

[0012] As a further description of the above technical solution:

[0013] A second motor is fixedly connected to the top of the outer wall of the workbench, and a gear is fixedly connected to the output end of the second motor.

[0014] As a further description of the above technical solution:

[0015] The workbench has rotating conveyor pipes on the top left and right sides of its outer wall, and a rotary furnace is fixedly connected to the adjacent side of the outer wall of the two conveyor pipes.

[0016] As a further description of the above technical solution:

[0017] The workbench has support columns fixedly connected to the four corners of its inner wall bottom, and shock-absorbing pads are fixedly connected to the bottom of the inner walls of the multiple support columns.

[0018] As a further description of the above technical solution:

[0019] A feed inlet is installed on the top right side of the outer wall of the workbench, and a discharge outlet is installed on the top left side of the outer wall of the workbench. A storage box is installed on the bottom of the outer wall of the discharge outlet.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, rotating the handle drives the threaded rod to rotate, which allows the slider at the other end to slide on the base, adjusting the height of the support platform and improving the shock absorption toughness. The limiting block constrains the working space of the threaded rod. The material pressure is transmitted to the support block and the connecting block through the support platform. The support block under the support platform and the base support block are connected by multiple rotating shafts to equalize the pressure. After the connecting block is subjected to force, it drives the movable ring through the rotating shaft. The two movable rings achieve elastic shock absorption through the compression spring, which can effectively buffer the impact of material flow at the inlet and outlet, reduce the direct wear on the coal drop pipe and the outlet powder pipe, extend the service life of the components, and improve the operational durability and reliability.

[0022] 2. In this utility model, by starting motor one, its output end drives rotating bar one to rotate. Rotating bar two is rotatably connected to rotating bar one through rotating shaft. The lower end of rotating bar two is coaxially rotatably connected to sliding column, which drives push plate to slide back and forth in slide groove. The slide groove is fixed to the top of base through connecting plate, realizing the effect of automatic material feeding and discharging. Attached Figure Description

[0023] Figure 1 This is a perspective view of the device for preventing wear on the coal chute and outlet powder pipe of a coal mill, as proposed in this utility model.

[0024] Figure 2 This is a front view of the device for preventing wear on the coal chute and outlet powder pipe of a coal mill, as proposed in this utility model.

[0025] Figure 3 This is a structural exploded view of the device for preventing wear on the coal drop pipe and outlet powder pipe of the coal mill proposed in this utility model.

[0026] Figure 4 This is a partial structural schematic diagram of the device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill proposed in this utility model.

[0027] Figure 5 This is a partial structural breakdown diagram of the device for preventing wear on the coal drop pipe and outlet powder pipe of the coal mill proposed in this utility model.

[0028] Legend:

[0029] 1. Workbench; 2. Vibration damping mechanism; 201. Base 1; 202. Limiting block; 203. Rotating handle; 204. Threaded rod; 205. Slider; 206. Elastic component; 2061. Support platform; 2062. Support block; 2063. Connecting block; 2064. Rotating shaft 1; 2065. Rotating shaft 2; 2066. Spring; 2067. Movable ring; 3. Telescopic mechanism; 301. Base 2; 302. Connecting plate; 303. Slide groove; 304. Drive component; 3041. Motor 1; 3042. Rotating bar 1; 3043. Rotating shaft 3; 3044. Rotating bar 2; 3045. Sliding column; 3046. Push plate; 4. Motor 2; 5. Gear; 6. Conveying pipe; 7. Rotary furnace; 8. Support column; 9. Vibration damping pad; 10. Feed inlet; 11. Discharge outlet; 12. Storage box. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill. The device includes a workbench 1, with a shock-absorbing mechanism 2 fixedly connected to the top of the outer wall of the workbench 1. The shock-absorbing mechanism 2 reduces wear through vibration. A telescopic mechanism 3 is installed on the top of the outer wall of the shock-absorbing mechanism 2 for automatically conveying materials. The shock-absorbing mechanism 2 includes a base 201 fixedly connected to the top of the outer wall of the workbench 1. A limit block 202 is fixedly connected to the top of the outer wall of the base 201. A threaded rod 204 is slidably connected to the middle of the inner wall of the limit block 202. A rotating handle 203 is fixedly connected to the right side of the outer wall of the threaded rod 204. A slider 205 is slidably connected to the top of the outer wall of the base 201, and the slider 205 engages with the threaded rod 204. An elastic component 206 is installed on the top of the outer wall. The elastic component 206 includes a support platform 2061. The support platform 2061 is installed on the top of the outer wall of the base 201. Support blocks 2062 are fixedly connected to the front and rear sides of the bottom of the outer wall of the support platform 2061. Two rotating shafts 2064 are fixedly connected to the right side of the outer wall of the two support blocks 2062. Connecting blocks 2063 are fixedly connected to the front and rear sides of the top of the outer wall of the slider 205. Rotating shafts 2065 are rotatably connected to the adjacent side of the middle of the inner wall of the two connecting blocks 2063. Movable rings 2067 are rotatably connected to the adjacent side of the outer wall of the two rotating shafts 2065. A spring 2066 is fixedly connected to the middle of the inner wall of the movable ring 2067. A motor 4 is fixedly connected to the top of the outer wall of the worktable 1. A gear 5 is fixedly connected to the output end of the motor 4.

[0032] Specifically, rotating the handle 203 causes the threaded rod 204 to rotate, which in turn causes the slider 205 at the other end of the threaded rod 204 to slide on the base 201, thereby reducing the height of the support platform 2061 and adjusting the shock absorption toughness. The limiting block 202 is used to limit the working space of the threaded rod 204. The material compresses the support platform 2061, which transmits the force to the support block 2062 and the connecting block 2063. The support block 2062 below the support platform 2061 and the support block 2062 on the base 201 are connected by multiple rotations. The rotating shaft 2064 is connected to achieve the function of evenly distributing pressure. After the connecting block 2063 is subjected to downward pressure, it is rotatably connected to the movable ring 2067 through the rotating shaft 2065. The two movable rings 2067 achieve elastic shock absorption through the compression spring 2066. This structure can buffer the impact force generated by the material flow at the feed port 10 and the discharge port 11, so that the material will not cause direct wear to the coal drop pipe and the outlet powder pipe, thereby extending the service life of the components and improving the durability and reliability of the device operation. The motor 4 is used to drive the gear 5 to rotate.

[0033] Reference Figure 1 , Figure 2 and Figure 5The telescopic mechanism 3 includes a second base 301, which is fixedly connected to the top of the outer wall of the workbench 1. A connecting plate 302 is fixedly connected to the rear side of the outer wall of the second base 301. A slide groove 303 is fixedly connected to the rear side of the outer wall of the connecting plate 302. A drive assembly 304 is slidably connected to the top of the outer wall of the slide groove 303. The drive assembly 304 includes a first motor 3041, which is fixedly connected to the top of the outer wall of the second base 301. A first rotating bar 3042 is fixedly connected to the output end of the first motor 3041. A third rotating shaft 3043 is rotatably connected to the left side of the outer wall of the first rotating bar 3042. A second rotating bar 3044 is rotatably connected to the left side of the outer wall of the third rotating shaft 3043. A sliding column 3045 is rotatably connected to the bottom of the outer wall of the second rotating bar 3044. A push plate 3046 is fixedly connected to the left side of the outer wall of the sliding column 3045. A conveying pipe 6 is rotatably connected to the top left and right sides of the outer wall of the workbench 1. A rotary furnace 7 is fixedly connected to the adjacent side of the outer wall of the two conveying pipes 6.

[0034] Specifically, after starting motor 3041, the output end of motor 3041 will drive rotating bar 3042 to rotate. Rotating bar 3044 and rotating bar 3042 are rotatably connected through rotating shaft 3043. At the lower end of rotating bar 3044, sliding column 3045 is rotatably connected through rotating shaft 3043, which in turn drives push plate 3046 to slide back and forth in slide groove 303. Slide groove 303 is connected to the top of base 301 through connecting plate 302, thereby achieving the effect of automatically feeding and feeding materials. Conveying pipe 6 is used to feed and feed materials, and rotary furnace 7 is used to process materials.

[0035] Reference Figure 1 , Figure 2 and Figure 3 Support columns 8 are fixedly connected to the four corners of the bottom inner wall of the workbench 1. Shock-absorbing pads 9 are fixedly connected to the bottom inner wall of the multiple support columns 8. A feed inlet 10 is installed on the top right side of the outer wall of the workbench 1, and a discharge outlet 11 is installed on the top left side of the outer wall of the workbench 1. A storage box 12 is installed on the bottom outer wall of the discharge outlet 11.

[0036] Specifically, the support column 8 is used to support the device on the ground, the support column 8 is connected to the shock-absorbing pad 9 for shock absorption and anti-slip, the feed port 10 is used to convey unprocessed materials, the discharge port 11 is used to discharge processed materials, and the storage box 12 is used to store the output materials.

[0037] Working principle: Rotating the handle 203 drives the threaded rod 204 to rotate, which in turn causes the slider 205 at the other end of the threaded rod 204 to slide on the base 201, thereby reducing the height of the support platform 2061 and improving its shock absorption. The limiting block 202 restricts the working space of the threaded rod 204. When the material compresses the support platform 2061, the force is transmitted to the support block 2062 and the connecting block 2063. The support block 2062 under the support platform 2061 and the support block 206 on the base 201... The two parts are connected by multiple rotating shafts 2064 to achieve the effect of averaging pressure. After the connecting block 2063 is subjected to the downward force, it is rotated to the movable ring 2067 through the rotating shaft 2065. The two movable rings 2067 are connected by a compression spring 2066 to achieve the effect of elastic shock absorption, which can buffer the impact force of material flow at the feed port 10 and the discharge port 11. The material will not directly wear the coal drop pipe and the outlet powder pipe, extend the service life of the components, and improve the durability and reliability of the device.

[0038] After starting motor 3041, the output end of motor 3041 drives rotating bar 3042 to rotate. Rotating bar 3044 and rotating bar 3042 are rotatably connected through rotating shaft 3043. At the lower end of rotating bar 3044, sliding column 3045 is rotatably connected through rotating shaft 3043, which in turn drives push plate 3046 to slide back and forth in slide groove 303. Slide groove 303 is connected to the top of base 301 through connecting plate 302, so as to achieve the effect of automatically conveying materials in and out.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing wear on the coal drop pipe and outlet powder pipe of a coal mill, comprising a worktable (1), characterized in that: A shock-absorbing mechanism (2) is fixedly connected to the top of the outer wall of the workbench (1). The shock-absorbing mechanism (2) is used to reduce wear by shock absorption. A telescopic mechanism (3) is installed on the top of the outer wall of the shock-absorbing mechanism (2). The telescopic mechanism (3) is used to automatically convey materials. The shock absorption mechanism (2) includes a base (201), which is fixedly connected to the top of the outer wall of the workbench (1). A limiting block (202) is fixedly connected to the top of the outer wall of the base (201). A threaded rod (204) is slidably connected to the middle of the inner wall of the limiting block (202). A rotating handle (203) is fixedly connected to the right side of the outer wall of the threaded rod (204). A slider (205) is slidably connected to the top of the outer wall of the base (201). The slider (205) is engaged with the threaded rod (204). An elastic component (206) is installed on the top of the outer wall of the slider (205).

2. The device for preventing wear of the coal mill's coal drop pipe and outlet powder pipe according to claim 1, characterized in that: The elastic component (206) includes a support platform (2061), which is installed on the top of the outer wall of the base (201). Support blocks (2062) are fixedly connected to the front and rear sides of the bottom of the outer wall of the support platform (2061). Two rotating shafts (2064) are fixedly connected to the right side of the outer wall of the two support blocks (2062). Connecting blocks (2063) are fixedly connected to the front and rear sides of the top of the outer wall of the slider (205). Rotating shafts (2065) are rotatably connected to the adjacent side of the middle of the inner wall of the two connecting blocks (2063). Movable rings (2067) are rotatably connected to the adjacent side of the outer wall of the two rotating shafts (2065). A spring (2066) is fixedly connected to the middle of the inner wall of the movable ring (2067).

3. The device for preventing wear of the coal mill's coal drop pipe and outlet powder pipe according to claim 1, characterized in that: The telescopic mechanism (3) includes a base two (301), which is fixedly connected to the top of the outer wall of the workbench (1). A connecting plate (302) is fixedly connected to the rear side of the outer wall of the base two (301), and a sliding groove (303) is fixedly connected to the rear side of the outer wall of the connecting plate (302). A drive assembly (304) is slidably connected to the top of the outer wall of the sliding groove (303).

4. The device for preventing wear of the coal pulverizer's coal drop pipe and outlet powder pipe according to claim 3, characterized in that: The drive assembly (304) includes a motor (3041), which is fixedly connected to the top of the outer wall of the base (301). The output end of the motor (3041) is fixedly connected to a rotating bar (3042). A rotating shaft (3043) is rotatably connected to the left side of the outer wall of the rotating bar (3042). A rotating bar (3044) is rotatably connected to the left side of the outer wall of the rotating shaft (3043). A sliding column (3045) is rotatably connected to the bottom of the outer wall of the rotating bar (3044). A push plate (3046) is fixedly connected to the left side of the outer wall of the sliding column (3045).

5. The device for preventing wear of the coal chute and outlet pulverized coal pipe of a coal mill according to claim 1, characterized in that: The top of the outer wall of the workbench (1) is fixedly connected to a motor (4), and a gear (5) is fixedly connected to the output end of the motor (4).

6. The device for preventing wear of the coal chute and outlet pulverized coal pipe of a coal mill according to claim 5, characterized in that: The top left and right sides of the outer wall of the workbench (1) are equipped with rotating conveying pipes (6), and a rotary furnace (7) is fixedly connected to the adjacent side of the outer wall of the two conveying pipes (6).

7. The device for preventing wear of the coal chute and outlet pulverized coal pipe of a coal mill according to claim 1, characterized in that: The workbench (1) has four corners at the bottom of its inner wall fixedly connected to support columns (8), and the bottom of the inner walls of the multiple support columns (8) is fixedly connected to shock-absorbing pads (9).

8. The device for preventing wear of the coal chute and outlet pulverized coal pipe of a coal mill according to claim 1, characterized in that: A feed inlet (10) is installed on the top right side of the outer wall of the workbench (1), a discharge outlet (11) is installed on the top left side of the outer wall of the workbench (1), and a storage box (12) is installed on the bottom of the outer wall of the discharge outlet (11).

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