Coal mill roller anti-pulverized coal device

Abstract

The application provides a coal pulverizer roller coal powder prevention device, and relates to the field of coal pulverizers.The device comprises a machine body and a buffer mechanism arranged on the machine body.In order to solve the problem that the particle size of the feed coal blocks is not uniform in the prior art, the material layer on the grinding disc is not uniformly thick, the stress of the grinding roller is unevenly distributed, the local stress is concentrated, the wear of the grinding roller is aggravated, and the service life of the grinding roller is short, the synchronous adjusting mechanism is arranged, the height uneven coal blocks are scraped flat by the stop block driven by the synchronous adjusting mechanism, the size of the coal blocks ground by the grinding roller is uniform, the uneven accumulation of the coal blocks is reduced, the wear of the grinding roller is not aggravated, and the service life of the grinding roller is prolonged.The synchronous adjusting mechanism is arranged, the problem that the coal material accumulated in front of the grinding roller increases the load of the equipment in the prior art is solved, and the synchronous adjusting mechanism is arranged, the problem that the coal blocks are easily adhered to the surface of the grinding roller, the grinding efficiency of the grinding roller is low, and the like are solved.

Description

Technical Field

[0001] This invention relates to the field of coal mills, and more specifically, to a coal mill roller anti-coal dust device. Background Technology

[0002] The coal mill grinding roller anti-coal powder device is a core pulverizing equipment supporting industries such as thermal power generation and coal chemical industry. Equipped with an energy-saving electric motor as the power unit, it mainly grinds raw coal into fine coal powder that meets the requirements of combustion process. The equipment integrates material crushing, hot air drying, particle size classification and pneumatic conveying functions, and can simultaneously complete the raw coal drying and grinding operations. The produced coal powder is directly sent to the combustion system for use.

[0003] Existing coal mill grinding roller anti-coal-dust devices consist of a grinding disc, grinding rollers, a buffer mechanism, a drive mechanism, and a rotating mechanism. The buffer mechanism drives the rotating mechanism, causing the grinding rollers mounted on the rotating mechanism to adhere to the grinding disc. The drive mechanism drives the grinding disc to rotate, and the rotation of the grinding disc, through friction, drives the grinding rollers to rotate. The rotating grinding rollers grind the coal blocks on the grinding disc. However, in actual use, the size of the fed coal blocks is uneven, and the height of the coal blocks piled on the grinding disc is uneven, resulting in uneven force on the grinding rollers during grinding. This leads to localized load concentration on the grinding rollers, accelerating wear and resulting in a shorter service life for the grinding rollers.

[0004] Therefore, this application makes an improvement and proposes a coal mill roller anti-coal dust device. Summary of the Invention

[0005] The purpose of this invention is to address the problem that the inconsistent particle size of the coal blocks fed into the coal mill easily leads to uneven material layer thickness on the grinding disc, resulting in uneven load on the grinding rollers and localized stress concentration, which in turn exacerbates roller wear and leads to a shorter service life.

[0006] To achieve the above-mentioned objectives, the present invention provides a coal mill roller anti-coal dust device to improve the aforementioned problems.

[0007] The application is as follows: Includes a machine body, a buffer mechanism disposed on the machine body, an adjusting block rotatably disposed on the machine body, a grinding roller rotatably disposed on the adjusting block, a grinding disc disposed on the machine body, a feed pipe disposed on the machine body, and a synchronous adjusting mechanism disposed on the adjusting block; The synchronous adjustment mechanism includes a slider that is slidably disposed on the adjustment block, an arc-shaped block disposed on the slider, a stop block disposed on the arc-shaped block, an inclined portion disposed on the stop block and the arc-shaped block respectively, and a drive assembly disposed on the adjustment block.

[0008] As a preferred technical solution of this application, the driving component includes a cylinder disposed on the adjusting block, the adjusting block is provided with a guide groove, and a connecting block is slidably disposed on the guide groove.

[0009] As a preferred technical solution of this application, the connecting block is disposed at the output end of the cylinder, the connecting block is disposed on the slider, and the arc-shaped block is slidably disposed on the adjusting block.

[0010] As a preferred technical solution of this application, the slider is provided with a blocking part, and the blocking part and the guide groove are adapted to each other.

[0011] As a preferred technical solution of this application, the stop block is provided with a protrusion, the arc block is provided with a mounting groove, the protrusion is slidably disposed on the mounting groove, and the protrusion and the arc block are connected by bolts.

[0012] As a preferred technical solution of this application, a fixed post is provided on the slider and the arc block, a scraper is rotatably provided on the fixed post, and a torsion spring is provided on the outside of the fixed post, with the two ends of the torsion spring respectively provided on the scraper and the fixed post.

[0013] As a preferred technical solution of this application, a limiting block is provided on the arc-shaped block, and the limiting block and the scraper are mutually compatible.

[0014] As a preferred technical solution of this application, the limiting block is provided with a wedge-shaped block, and both the wedge-shaped block and the limiting block are made of rubber.

[0015] As a preferred technical solution of this application, the scraper is provided with a synchronization block, the arc-shaped block is provided with a transmission block, and the end of the transmission block is provided with a rubber block.

[0016] As a preferred technical solution of this application, the synchronization block is slidably disposed on the transmission block, and the rubber block and the scraper are adapted to each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. In order to solve the problem that the different particle sizes of the coal blocks fed into the coal mill in the prior art can easily cause uneven material layer thickness on the grinding disc, resulting in uneven load on the grinding rollers and local stress concentration, which will aggravate the wear of the grinding rollers and lead to a short service life, this application sets up a synchronous adjustment mechanism. The synchronous adjustment mechanism drives the stop block to scrape the coal blocks of uneven height, so that the coal blocks ground by the grinding rollers are of uniform size, reducing the situation of uneven coal block accumulation leading to aggravated wear of the grinding rollers, and improving the service life of the grinding rollers; 2. By setting up a synchronous adjustment mechanism, excess coal blocks are guided to the center of the grinding disc, and the centrifugal force of the rotating grinding disc drives the coal blocks to spread outward evenly, preventing local material accumulation in front of the grinding rollers, reducing the processing load of the equipment, and solving the problem of increased equipment load caused by coal accumulation in front of the grinding rollers in the existing technology. 3. By setting a synchronous adjustment mechanism, the scraper is driven to clean the material without scraping the roller, thereby cleaning the coal lumps adhering to the surface of the grinding roller. This reduces the repeated grinding of the grinding roller and improves the grinding efficiency of the coal lumps. It solves the problem of low grinding efficiency of the grinding roller caused by the easy adhesion of coal lumps to the surface of the grinding roller in the existing technology. Attached Figure Description

[0018] Figure 1 A schematic diagram of the coal mill roller anti-coal dust device provided in this application; Figure 2 This is a partial cross-sectional structural diagram of the coal mill roller anti-coal dust device provided in this application; Figure 3 A schematic diagram of the overall structure of the baffle and arc block of the coal mill roller anti-coal dust device provided in this application; Figure 4 A partial cross-sectional view of the adjusting block of the coal mill roller anti-coal dust device provided in this application; Figure 5 A partial cross-sectional view of the baffle and arc-shaped block of the coal mill roller anti-coal dust device provided in this application; Figure 6 A schematic diagram of the overall structure of the mounting groove for the coal mill roller anti-coal dust device provided in this application; Figure 7 A schematic diagram of the overall structure of the scraper and synchronization block of the coal mill grinding roller anti-coal dust device provided in this application; Figure 8 The coal mill roller anti-coal dust device provided in this application Figure 7 A magnified structural diagram of area A in the middle.

[0019] The image shows: 1. Machine body; 101. Buffer mechanism; 102. Adjusting block; 103. Grinding roller; 104. Grinding disc; 105. Feed pipe; 2. Synchronous adjustment mechanism; 201. Slider; 202. Arc block; 203. Stop block; 204. Inclined part; 205. Sealing part; 206. Protrusion; 207. Mounting groove; 208. Bolt; 209. Fixing column; 210. Scraper; 211. Torsion spring; 212. Limiting block; 213. Wedge block; 214. Synchronizing block; 215. Transmission block; 216. Rubber block; 3. Drive assembly; 301. Cylinder; 302. Guide groove; 303. Connecting block. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] As described in the background art, the coal lumps fed into the coal mill have different particle sizes, which can easily cause uneven thickness of the material layer on the grinding disc. This results in uneven load on the grinding rollers, local stress concentration, which will aggravate the wear of the grinding rollers and lead to a shorter service life.

[0022] To solve this technical problem, the present invention provides a coal mill roller anti-coal dust device, which is applied to a coal mill.

[0023] For details, please refer to Figure 1 - Figure 8 As shown, the coal mill grinding roller anti-coal dust device specifically includes: a machine body 1, a buffer mechanism 101 mounted on the machine body 1, an adjusting block 102 rotatably mounted on the machine body 1, a grinding roller 103 rotatably mounted on the adjusting block 102, a grinding disc 104 mounted on the machine body 1, and a feed pipe 105 mounted on the machine body 1. It also includes a synchronous adjusting mechanism 2 mounted on the adjusting block 102. In the prior art, the buffer mechanism 101 is composed of a spring seat, a spring, and a buffer column. The buffer column pushes the adjusting block 102, causing the grinding roller 103 to conform to the grinding disc 104. Simultaneously, when the adjusting block 102 rotates, the buffer column slides along the spring seat and... A compression spring is used to buffer the impact vibration generated during the grinding process and stabilize the grinding pressure. The adjusting block 102 serves as the mounting support carrier for the grinding roller 103, bearing the thrust of the buffer mechanism 101 and driving the grinding roller 103 to swing slightly to adapt to the varying thickness of the material layer on the grinding disc 104. The grinding roller 103 rotates along with the friction of the grinding disc 104, relying on the roller surface to squeeze the raw coal on the grinding disc 104 to complete the coal pulverization and grinding operation. The grinding disc 104 is driven to rotate by the existing drive components, receiving the raw coal and spreading the material to form a material layer by relying on centrifugal force, which, together with the grinding roller 103, achieves material layering and grinding. The feed pipe 105 is used to guide the coal blocks into the center of the grinding disc 104. The synchronous adjustment mechanism 2 includes a slider 201 slidably disposed on the adjustment block 102, an arc block 202 disposed on the slider 201, a stop block 203 disposed on the arc block 202, an inclined portion 204 disposed on the stop block 203 and the arc block 202 respectively, and a drive assembly 3 disposed on the adjustment block 102.

[0024] The coal mill grinding roller 103 anti-coal dust device provided by this invention addresses the problem in the prior art where the particle size of the coal lumps fed into the coal mill is uneven, easily causing uneven material layer thickness on the grinding disc 104, resulting in uneven load on the grinding roller 103 and local stress concentration, which exacerbates the wear of the grinding roller 103 and leads to a shorter service life. This application provides a synchronous adjustment mechanism 2, which drives the stop block 203 to scrape the coal lumps with uneven height, making the coal lumps ground by the grinding roller 103 uniform in size, reducing the situation where uneven coal accumulation leads to increased wear of the grinding roller 103, and improving the service life of the grinding roller 103. By using the synchronous adjustment mechanism 2, excess coal blocks are guided to the center of the grinding disc 104. The centrifugal force of the rotating grinding disc 104 then drives the coal blocks to spread outward evenly, preventing local material accumulation in front of the grinding roller 103, reducing the processing load of the equipment, and solving the problem of increased equipment load caused by coal accumulation in front of the grinding roller 103 in the prior art. By using the synchronous adjustment mechanism 2, the scraper 210 is driven to clean the material without scraping the roller, thereby cleaning the coal lumps adhering to the surface of the grinding roller 103. This reduces the repeated grinding of the grinding roller 103 and improves the grinding efficiency of the coal lumps. It also solves the problem of low grinding efficiency of the grinding roller 103 caused by the easy adhesion of coal lumps to the surface of the grinding roller 103 in the prior art.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a coal mill grinding roller 103 anti-coal dust device has a driving component 3 including a cylinder 301 disposed on an adjusting block 102, a guide groove 302 disposed on the adjusting block 102, and a connecting block 303 slidably disposed on the guide groove 302. In use, the feed pipe 105 guides the coal blocks into the center of the grinding disc 104. The grinding disc 104 rotates, driving the grinding roller 103 to rotate through friction. The rotating grinding roller 103, through the grinding disc 104, squeezes and grinds the coal blocks. Figure 2 As shown, the grinding disc 104 rotates counterclockwise, and the coal blocks on the grinding disc 104 are driven to rotate by friction, as... Figure 5 As shown, there is a height difference between the bottom of the stop block 203 and the grinding roller 103. When the grinding disc 104 rotates, the unevenly stacked coal blocks are leveled by the stop block 203, making the coal blocks ground by the grinding roller 103 uniform in size. This reduces the wear of the grinding roller 103 caused by uneven coal accumulation and improves the service life of the grinding roller 103. The inclined part 204 is used to guide excess coal blocks. When the coal blocks contact the inclined part 204, the inclined part 204 is distributed in a sloping manner on the stop block 203 and the arc block 202. The coal blocks move along the inclined part 204 and are ground by their own weight. The material slides towards the center of the grinding disc 104, and the inclined part 204 guides the excess coal to the center of the grinding disc 104. The centrifugal force of the rotating grinding disc 104 drives the coal to spread evenly outward, preventing local material accumulation in front of the grinding roller 103 and reducing the processing load of the equipment. According to the actual coal size, the drive component 3 drives the slider 201, the arc block 202 and the stop block 203 to slide on the adjusting block 102. The height of the stop block 203 and the arc block 202 on the adjusting block 102 is adjusted in a targeted manner, thereby controlling the amount of grinding by the grinding roller 103 in one pass and improving the practicality of the equipment. When the cylinder 301 is activated, the output end of the cylinder 301 drives the connecting block 303 to slide along the guide groove 302. The connecting block 303 drives the slider 201 to slide synchronously. The slider 201 drives the arc block 202 and the stop block 203 to slide. The height of the stop block 203 and the arc block 202 on the adjusting block 102 is adjusted in this way. Furthermore, the connecting block 303 is disposed at the output end of the cylinder 301, the connecting block 303 is disposed on the slider 201, and the arc-shaped block 202 is slidably disposed on the adjusting block 102; Furthermore, the slider 201 is provided with a sealing part 205, which is compatible with the guide groove 302; like Figure 3 As shown, the sealing part 205 is used to seal the guide groove 302 to prevent coal powder from entering the guide groove 302 and causing the guide groove 302 to become blocked, thereby preventing the coal powder from affecting the sliding adjustment of the connecting block 303. Furthermore, the stop block 203 is provided with a protrusion 206, and the arc block 202 is provided with a mounting groove 207. The protrusion 206 is slidably disposed on the mounting groove 207, and the protrusion 206 and the arc block 202 are connected by bolts 208. When the stop block 203 needs to be replaced, the bolt 208 is rotated to release the bolt 208 from the protrusion 206 and the arc block 202, so that the protrusion 206 is disengaged from the arc block 202, and then the stop block 203 is disengaged from the arc block 202, thus realizing the quick replacement of the stop block 203. Furthermore, a fixed post 209 is provided on the slider 201 and the arc block 202, a scraper 210 is rotatably provided on the fixed post 209, and a torsion spring 211 is provided on the outside of the fixed post 209, with the two ends of the torsion spring 211 respectively provided on the scraper 210 and the fixed post 209. Furthermore, a limit block 212 is provided on the arc-shaped block 202, and the limit block 212 and the scraper 210 are mutually compatible; like Figure 5 As shown, the limiting block 212 limits the scraper 210. There is a gap of 10mm between the output end of the scraper 210 and the grinding roller 103. When there are coal lumps on the surface of the grinding roller 103, the grinding roller 103 rotates counterclockwise. The scraper 210 scrapes away coal lumps larger than 10mm from the surface of the grinding roller 103. When there are many coal lumps on the grinding roller 103, the scraper 210 is buffered by the elasticity of the torsion spring 211 and adaptive rotation along the fixed column 209, which reduces the scraper 210 from being damaged due to hard squeezing between the scraper 210 and the coal lumps. In this way, the material is cleaned without scraping the surface of the grinding roller 103, reducing the wear on the grinding roller 103. By cleaning the coal lumps on the surface of the grinding roller 103, the repeated grinding of the surface of the grinding roller 103 with coal lumps is reduced, thus improving the efficiency of coal grinding. The synchronous adjustment mechanism 2 drives the stop block 203 to scrape the uneven coal blocks, making the coal blocks ground by the grinding roller 103 uniform in size. This reduces the wear of the grinding roller 103 caused by uneven coal block accumulation, thus improving the service life of the grinding roller 103. The synchronous adjustment mechanism 2 guides excess coal blocks to the center of the grinding disc 104, and the centrifugal force of the rotating grinding disc 104 drives the coal blocks to spread evenly outward, preventing local material accumulation in front of the grinding roller 103 and reducing the processing load of the equipment. The synchronous adjustment mechanism 2 drives the scraper 210 to clean the material without scraping the roller, thus cleaning the coal blocks adhering to the surface of the grinding roller 103, reducing the repeated grinding of coal blocks on the surface of the grinding roller 103, and improving the efficiency of coal block grinding.

[0029] Example 2 further optimizes the coal mill roller 103 anti-coal dust device provided in Example 1, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a wedge block 213 is provided on the limiting block 212, and both the wedge block 213 and the limiting block 212 are made of rubber. like Figure 5 As shown, the grinding roller 103 rotates counterclockwise, and the coal blocks ground by the grinding roller 103 are pre-scraped flat by the wedge block 213, reducing the workload of the next set of stop blocks 203. The limiting block 212 and the wedge block 213 are made of rubber. When the grinding roller 103 rotates, the grinding roller 103 rotates and throws out some of the coal blocks on the surface through centrifugal force. The thrown coal blocks hit the limiting block 212 and the wedge block 213. The rubber material reduces the noise generated by the impact of the coal blocks. Furthermore, a synchronizing block 214 is provided on the scraper 210, a transmission block 215 is provided on the arc-shaped block 202, and a rubber block 216 is provided at the end of the transmission block 215. Furthermore, the synchronizing block 214 is slidably mounted on the transmission block 215, and the rubber block 216 and the scraper 210 are mutually adapted. When the scraper 210 rotates and impacts the rubber block 216 or the limiting block 212, the synchronizing block 214 slides along the surface of the transmission block 215, causing the rubber block 216 and the transmission block 215 to vibrate. This vibration is transmitted to the stop block 203 and the arc-shaped block 202 via the flexible vibration generated by the transmission block 215, achieving self-cleaning of the inclined section 204 and reducing the likelihood of coal lumps sticking to the inclined section 204, which would increase the equipment load. Figure 5 As shown, the synchronizing block 214 and the transmission block 215 block the bottom of the scraper 210 to prevent the coal block from interfering with the rotation of the scraper 210.

[0030] The coal mill grinding roller 103 anti-coal dust device provided by this invention is used as follows: In use, the feed pipe 105 guides coal blocks into the center of the grinding disc 104. The grinding disc 104 rotates, driving the grinding roller 103 to rotate through friction. The rotating grinding roller 103 squeezes and grinds the coal blocks through the grinding disc 104. The grinding disc 104 rotates counterclockwise, driving the coal blocks on it to rotate through friction. There is a height difference between the bottom of the stop block 203 and the bottom of the grinding roller 103. As the grinding disc 104 rotates, the stop block 203 scrapes the unevenly stacked coal blocks, making the coal blocks ground by the grinding roller 103 uniform in size and reducing the wear of the grinding roller 103 caused by uneven coal accumulation. The inclined part 204 is used to guide excess coal blocks. When the coal blocks contact the inclined part 204, the inclined part 204 is distributed in a sloping manner on the stop block 203 and the arc block 202. The coal blocks move along the inclined part 204 and move towards the grinding disc 104 by their own weight. The center position is slidable, and the excess coal blocks are guided to the center of the grinding disc 104 through the inclined part 204. The centrifugal force of the rotating grinding disc 104 drives the coal blocks to spread evenly outward, preventing local material accumulation in front of the grinding roller 103. The scraper 210 scrapes away coal blocks larger than 10mm on the surface of the grinding roller 103. When there are many coal blocks stuck to the grinding roller 103, the scraper 210 is buffered by the elasticity of the torsion spring 211 and adaptive rotation along the fixed column 209. When the scraper 210 rotates and hits the rubber block 216 or the limit block 212, the synchronizing block 214 slides along the surface of the transmission block 215, causing the rubber block 216 and the transmission block 215 to vibrate. The flexible vibration generated by the transmission block 215 is transmitted to the stop block 203 and the arc block 202, realizing the self-cleaning of the inclined part 204 and reducing the situation where coal blocks stick to the inclined part 204, which increases the load on the equipment.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A coal mill grinding roller anti-coal dust device, comprising a body (1), a buffer mechanism (101) disposed on the body (1), an adjusting block (102) rotatably disposed on the body (1), a grinding roller (103) rotatably disposed on the adjusting block (102), a grinding disc (104) disposed on the body (1), and a feed pipe (105) disposed on the body (1), characterized in that, Includes a synchronous adjustment mechanism (2) disposed on the adjustment block (102); The synchronous adjustment mechanism (2) includes a slider (201) slidably disposed on the adjustment block (102), an arc block (202) disposed on the slider (201), a stop block (203) disposed on the arc block (202), an inclined portion (204) disposed on the stop block (203) and the arc block (202) respectively, and a drive assembly (3) disposed on the adjustment block (102); The slider (201) and the arc block (202) are provided with a fixed post (209), and a scraper (210) is rotatably provided on the fixed post (209). A torsion spring (211) is provided on the outside of the fixed post (209), and the two ends of the torsion spring (211) are respectively provided on the scraper (210) and the fixed post (209).

2. A limiting block (212) is provided on the arc-shaped block (202), and the limiting block (212) and the scraper (210) are adapted to each other.

3. A wedge block (213) is provided on the limiting block (212), and both the wedge block (213) and the limiting block (212) are made of rubber.

4. A synchronizing block (214) is provided on the scraper (210), a transmission block (215) is provided on the arc-shaped block (202), and a rubber block (216) is provided at the end of the transmission block (215).

5. A coal mill grinding roller anti-coal dust device according to claim 1, characterized in that, The drive assembly (3) includes a cylinder (301) disposed on the adjusting block (102), the adjusting block (102) is provided with a guide groove (302), and a connecting block (303) is slidably disposed on the guide groove (302).

6. A coal mill grinding roller anti-coal dust device according to claim 2, characterized in that, The connecting block (303) is disposed at the output end of the cylinder (301), the connecting block (303) is disposed on the slider (201), and the arc block (202) is slidably disposed on the adjusting block (102).

7. A coal mill grinding roller anti-coal dust device according to claim 3, characterized in that, The slider (201) is provided with a blocking part (205), and the blocking part (205) and the guide groove (302) are adapted to each other.

8. A coal mill grinding roller anti-coal dust device according to claim 4, characterized in that, The stop block (203) is provided with a protrusion (206), and the arc block (202) is provided with a mounting groove (207). The protrusion (206) is slidably disposed on the mounting groove (207), and the protrusion (206) and the arc block (202) are connected by bolts (208).

9. A coal mill grinding roller anti-coal dust device according to claim 5, characterized in that, The synchronizing block (214) is slidably disposed on the transmission block (215), and the rubber block (216) and the scraper (210) are adapted to each other.

Images