A cement production grinding device

Abstract

This utility model relates to the field of grinding device technology, specifically to a cement production grinding device, including a grinding device body. The grinding device body is equipped with a power grinding roller assembly for grinding cement raw materials. A sieve plate is arranged on the inner side of the grinding device body, and the outer side of the sieve plate is connected to a ring plate, which is connected to the grinding device body. The sieve plate has a W-shaped cross-section, allowing the cement raw materials to slide down automatically and naturally under gravity, thereby improving the flowability of the cement raw materials. An anti-clogging mechanism drives the sieve plate to vibrate up and down. The energy generated by the vibration loosens the material, preventing it from accumulating into clumps on the sieve plate, further improving the flowability of the cement raw materials. Simultaneously, it prevents the cement raw materials from clogging the sieve plate, solving the technical problem that cement raw materials easily accumulate in corners, making it difficult for cement production grinding devices to fully disperse the cement raw materials.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically to a cement production grinding equipment. Background Technology

[0002] Grinding equipment is a crucial part of cement production, primarily used to grind cement clinker, gypsum, and other raw materials into cement powder. This equipment can grind raw materials like cement clinker into very fine particles. The fineness of cement directly affects its strength and hardening speed; therefore, fineness control is an important aspect of cement production. Cement with higher fineness typically has stronger early strength, and its larger surface area increases its contact area with water, thereby accelerating chemical reactions within the cement.

[0003] Chinese Patent Publication No. CN220310638U discloses a cement production grinding device, comprising four uprights, with a crossbar fixedly connected between every two uprights on the same side. A processing chamber is fixedly installed near the top between two uprights on the same side. Several grinding rollers are rotatably mounted inside the processing chamber. A motor is installed at the front of the processing chamber, and a feeding hopper is located above the processing chamber. The feeding hopper contains a crushing and filtering structure. This cement production grinding device, by incorporating a crushing and filtering structure, can crush cement raw materials of varying sizes through the interaction of rotating rods and crushing rods. The filter plate allows more uniformly shaped raw materials to enter the processing chamber, where they are then ground by the grinding rollers to obtain finely granulated cement raw materials. This facilitates subsequent cement production processes, resulting in high-quality cement and improving the functionality of the device.

[0004] The aforementioned patent mentions that when using the cement production grinding device, large pieces of cement raw material are poured into the middle of the feeding hopper, the motor is started, and the interaction between the rotating rod and the crushing rod crushes the large pieces of cement raw material. The crushed cement raw material falls into the processing chamber below through the filtering action of the filter plate. Since the filter plate is flat and the internal space of the feeding hopper is rectangular, the flow of material in the rectangular feeding hopper is usually concentrated in the central area. However, due to the limited space in the corners, the flow of cement raw material is limited, causing cement raw material to easily accumulate in the corners, making it difficult for the cement production grinding device to fully disperse the cement raw material. Therefore, we propose a cement production grinding device. Utility Model Content

[0005] To address the aforementioned problems, a cement production grinding device is provided. The cross-sectional shape of the screen plate is W-shaped, allowing cement raw materials to automatically slide down when fed into the main body of the grinding device, thus improving the flowability of the cement raw materials. Furthermore, the anti-clogging mechanism can drive the screen plate to vibrate up and down, further improving the flowability of the cement raw materials and preventing them from clogging the screen plate. This solves the technical problem that cement raw materials tend to accumulate in corners, making it difficult for the cement production grinding device to fully disperse the cement raw materials.

[0006] To address the problems of existing technologies, this utility model provides a cement production grinding device, including a grinding device body, a power grinding roller assembly for grinding cement raw materials on the grinding device body, a sieve plate on the inner side of the grinding device body, an outer side of the sieve plate connected to a ring plate, the ring plate connected to the grinding device body, a stirring mechanism on the grinding device body for dispersing cement raw materials, an anti-clogging mechanism on the sieve plate to prevent cement raw materials from clogging the sieve holes, and a drive mechanism on the grinding device body to enhance the dispersing effect of the stirring mechanism.

[0007] Preferably, the stirring mechanism includes a transmission mechanism, a connecting frame, and a stirring rod; the working end of the transmission mechanism is connected to the output end of the power grinding roller assembly; the connecting frame is rotatably mounted on the main body of the grinding device, and one end of the connecting frame slides through the upper and lower sides of the sieve plate; the stirring rod is rotatably mounted on the connecting frame.

[0008] Preferably, the transmission mechanism includes a first synchronization component and a bevel gear component; the first synchronization component is rotatably mounted on the main body of the grinding device, and one working end of the first synchronization component is connected to the output end of the power grinding roller component; the bevel gear component is rotatably mounted on the main body of the grinding device, and one working end of the bevel gear component is connected to the working end of the first synchronization component away from the power grinding roller component, and the other working end of the bevel gear component is connected to the connecting frame.

[0009] Preferably, the anti-clogging mechanism includes a scraper, a displacement mechanism, and a dustproof mechanism; the scraper is disposed on the screen plate, and one end of the scraper is connected to the connecting frame; the displacement mechanism is disposed between the screen plate and the grinding device body, and the displacement mechanism is used to drive the screen plate to move up and down reciprocally; the dustproof mechanism is disposed on the anti-clogging mechanism, and the dustproof mechanism is used to prevent cement raw materials from entering the gap of the anti-clogging mechanism.

[0010] Preferably, the displacement mechanism includes a first convex plate, a second convex plate, and a guide mechanism; the first convex plate is connected to the sieve plate and is sleeved on the outside of the connecting frame; the second convex plate is mated with the first convex plate and is connected to the connecting frame; the guide mechanism is disposed on the outside of the first convex plate and the second convex plate, and the guide mechanism is used to assist the first convex plate in linear movement.

[0011] Preferably, the guiding mechanism includes a connecting pipe, a connecting tube, and an elastic reset member; the connecting pipe is sleeved on the outside of the first convex plate and the second convex plate, and the connecting pipe is connected to the screen plate; the connecting tube is sleeved on the outside of the connecting frame, and the inner side of the connecting tube is slidably connected to the outer side of the connecting pipe; the elastic reset member is disposed on the inner side of the connecting tube, and the two ends of the elastic reset member are respectively connected to the connecting pipe and the connecting tube.

[0012] Preferably, the dustproof mechanism includes a first dustproof cover, a telescopic rod, and a second dustproof cover; the first dustproof cover is sleeved on the outside of the connecting frame, and is rotatably mounted in the middle of the sieve plate, with its upper side connected to the connecting frame; the telescopic rod is located inside the first dustproof cover, with its movable end connected to the upper side of the first dustproof cover and its fixed end connected to the lower side of the first dustproof cover; the second dustproof cover is sleeved on the upper end of the connecting pipe, with its upper and lower sides connected to the upper end of the connecting pipe and the connecting pipe, respectively.

[0013] Preferably, the drive mechanism includes a gear ring, a gear disc, and a second synchronization component; the gear ring is connected to the inner side of the grinding device body; the gear disc is rotatably mounted on the connecting frame and is connected to the gear ring; one working end of the second synchronization component is connected to the gear disc, and the other working end of the second synchronization component is connected to the stirring rod.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. The cross-sectional shape of the screen plate is W-shaped, which allows cement raw materials to slide down automatically and naturally under gravity, thereby improving the flowability of cement raw materials. The anti-clogging mechanism can drive the screen plate to vibrate up and down. The energy generated by the vibration can loosen the material and prevent the raw materials from accumulating into clumps on the screen plate, thereby further improving the flowability of cement raw materials. At the same time, it prevents cement raw materials from clogging the screen plate, solving the technical problem that cement raw materials tend to accumulate in corners, making it difficult for cement production grinding equipment to fully disperse cement raw materials.

[0016] 2. By driving the stirring rod to revolve around the screen plate while rotating on its own axis, the stirring rod improves the stirring effect on the cement raw materials, ensures the uniformity of the cement raw materials, and thus improves the grinding efficiency of the cement production grinding device. This solves the technical problem of insufficient stirring and uneven mixing of cement raw materials in the cement production grinding device, which leads to the limited overall grinding efficiency of the grinding device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the grinding device body, the power grinding roller assembly, and their connection structure in a cement production grinding device.

[0018] Figure 2 This is a three-dimensional schematic diagram of a screen plate and ring plate and their connection structure in a cement production grinding device.

[0019] Figure 3 This is a three-dimensional schematic diagram of a cement production grinding device, including a sieve plate, a stirring rod, and their connection structure.

[0020] Figure 4 A cement production grinding device Figure 1 Enlarged diagram of point A in the middle.

[0021] Figure 5 A cement production grinding device Figure 1 Enlarged diagram of point B in the middle.

[0022] Figure 6 A cement production grinding device Figure 2 Enlarged diagram of point C in the middle.

[0023] Figure 7 A cement production grinding device Figure 3 Enlarged diagram of point D in the middle.

[0024] Figure 8 A cement production grinding device Figure 3 Enlarged diagram of point E in the middle.

[0025] The following are the labels in the diagram: 1. Main body of the grinding device; 11. Power grinding roller assembly; 2. Screen plate; 21. Ring plate; 22. Connecting frame; 23. Stirring rod; 24. First synchronization assembly; 25. Conical tooth assembly; 26. First convex plate; 27. Second convex plate; 28. First dust cover; 29. ​​Telescopic rod; 210. Second dust cover; 211. Connecting pipe; 212. Connecting pipe; 213. Elastic reset component; 214. Toothed ring; 215. Toothed disc; 216. Second synchronization assembly. Detailed Implementation

[0026] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0027] See Figures 1-2As shown, a cement production grinding device includes a grinding device body 1, on which a power grinding roller assembly 11 for grinding cement raw materials is provided. A sieve plate 2 is provided on the inner side of the grinding device body 1, and the outer side of the sieve plate 2 is connected to a ring plate 21. The ring plate 21 is connected to the grinding device body 1. A stirring mechanism for dispersing cement raw materials is provided on the grinding device body 1. An anti-clogging mechanism is provided on the sieve plate 2 to prevent cement raw materials from clogging the sieve holes. A drive mechanism is also provided on the grinding device body 1 to enhance the dispersing effect of the stirring mechanism. The stirring mechanism includes a transmission mechanism, a connecting frame 22, and a stirring rod 23. The working end of the transmission mechanism is connected to the power grinding roller assembly 11. The output end is connected; the connecting frame 22 is rotatably mounted on the grinding device body 1, and one end of the connecting frame 22 slides through the upper and lower sides of the sieve plate 2; the stirring rod 23 is rotatably mounted on the connecting frame 22; the transmission mechanism includes a first synchronization component 24 and a bevel gear component 25; the first synchronization component 24 is rotatably mounted on the grinding device body 1, and one working end of the first synchronization component 24 is connected to the output end of the power grinding roller assembly 11; the bevel gear component 25 is rotatably mounted on the grinding device body 1, and one working end of the bevel gear component 25 is connected to the working end of the first synchronization component 24 away from the power grinding roller assembly 11, and the other working end of the bevel gear component 25 is connected to the connecting frame 22.

[0028] Specifically, the power grinding roller assembly 11 consists of a motor and a grinding roller; the screen plate 2 has a W-shaped cross section; the ring plate 21 is made of deformable wear-resistant rubber material; the first synchronization assembly 24 consists of two synchronization pulleys and a synchronization belt, and the two synchronization pulleys and the synchronization belt of the first synchronization assembly 24 form a gear transmission structure; the bevel gear assembly 25 consists of two meshing bevel gears.

[0029] The motor of the power grinding roller assembly 11 is started, causing the grinding roller to rotate. Cement raw materials are then fed into the grinding device body 1. Based on the W-shaped cross-section structure of the screen plate 2, the raw materials can slide down the surface of the screen plate 2 under the action of gravity, maintaining a stable flow state and effectively avoiding material retention and accumulation. At this time, the grinding roller can grind the screened cement raw materials. Simultaneously, the motor of the power grinding roller assembly 11 drives the lower synchronous wheel of the first synchronous assembly 24 to rotate. Due to the meshing transmission relationship between the two synchronous wheels and the synchronous belt in the first synchronous assembly 24, the bevel gear on one side of the bevel gear assembly 25 is driven to rotate. Utilizing the meshing transmission characteristics of the two bevel gears in the bevel gear assembly 25, the upper bevel gear of the bevel gear assembly 25 rotates, thereby driving the connecting frame 22 to rotate. This allows the connecting frame 22 to rotate continuously while the grinding device body 1 is performing grinding operations.

[0030] The connecting frame 22 drives the stirring rod 23 to agitate the cement raw material on the screen plate 2. Simultaneously, the rotation of the connecting frame 22 triggers the anti-clogging mechanism. The ring plate 21, made of deformable, wear-resistant rubber, drives the screen plate 2 to vibrate up and down via the displacement mechanism. The ring plate 21 deforms as the screen plate 2 moves. The force generated by the vibration of the screen plate 2 loosens the material, preventing it from clumping together and reducing the risk of clogging. As the raw material flows along the surface of the screen plate 2, the vibration helps it pass smoothly through the screen holes, improving screening efficiency. Furthermore, the dustproof mechanism effectively blocks the cement raw material, ensuring the smooth operation of the anti-clogging mechanism.

[0031] See Figures 1-3 and Figures 5-7 As shown, the anti-clogging mechanism includes a scraper, a displacement mechanism, and a dustproof mechanism. The scraper is mounted on the sieve plate 2, and one end of the scraper is connected to the connecting frame 22. The displacement mechanism is located between the sieve plate 2 and the grinding device body 1, and is used to drive the sieve plate 2 to move up and down reciprocally. The dustproof mechanism is mounted on the anti-clogging mechanism to prevent cement raw materials from entering the gap of the anti-clogging mechanism. The displacement mechanism includes a first convex plate 26, a second convex plate 27, and a guide mechanism. The first convex plate 26 is connected to the sieve plate 2 and is sleeved on the outside of the connecting frame 22. The second convex plate 27 is mated with the first convex plate 26 and is connected to the connecting frame 22. A guiding mechanism is disposed on the outside of the first convex plate 26 and the second convex plate 27. The guiding mechanism is used to assist the first convex plate 26 in linear movement. The guiding mechanism includes a connecting pipe 211, a connecting tube 212, and an elastic reset member 213. The connecting pipe 211 is sleeved on the outside of the first convex plate 26 and the second convex plate 27 and is connected to the sieve plate 2. The connecting tube 212 is sleeved on the outside of the connecting frame 22, and the inner side of the connecting tube 212 is slidably connected to the outer side of the connecting pipe 211. The elastic reset member 213 is disposed on the inner side of the connecting tube 212, and the two ends of the elastic reset member 213 are respectively connected to the connecting pipe 211 and the connecting tube 212.

[0032] Specifically, the outer side of the connecting pipe 211 and the inner side of the connecting pipe 212 form a matching structure, and the cross-sectional shape of the inner side of the connecting pipe 212 is rectangular; the elastic reset member 213 uses a spring as the implementing element.

[0033] When the connecting frame 22 drives the stirring rod 23 to rotate, it synchronously drives the second convex plate 27 to rotate, causing the second convex plate 27 to exert a squeezing effect on the first convex plate 26. During this process, the second convex plate 27 pushes the sieve plate 2 upward. When the sieve plate 2 moves upward, it drives the connecting pipe 211 to slide along the inner side of the connecting pipe 212. During the sliding process, the connecting pipe 211 compresses the elastic reset member 213. Due to the matching relationship between the outer side of the connecting pipe 211 and the inner side of the connecting pipe 212, and the rectangular cross-section of the inner side of the connecting pipe 212, and the spring structure of the elastic reset member 213, the connecting pipe 211 can effectively suppress shaking or rotation when sliding on the inner side of the connecting pipe 212, thereby ensuring the stability of the upward movement of the sieve plate 2. Moreover, when the sieve plate 2 moves to the top, the stirring rod 23 will not contact the sieve plate 2. When the second convex plate 27 is released from the squeezing state of the first convex plate 26, the connecting pipe 211 slides down along the inner side of the connecting pipe 212, and the elastic reset member 213 extends due to the release of compression, driving the sieve plate 2 to move downward quickly. As the connecting frame 22 continues to rotate, the screen plate 2 maintains periodic up-and-down vibration. The vibration of the screen plate 2 can promote the smooth screening of cement raw materials and reduce the probability of material blockage. At the same time, the stable vibration mode allows the material to pass through the screen plate evenly, improving screening efficiency and ensuring the uniformity of product quality.

[0034] See Figures 1-3 and Figure 7 As shown, the dustproof mechanism includes a first dust cover 28, a telescopic rod 29, and a second dust cover 210. The first dust cover 28 is sleeved on the outside of the connecting frame 22 and is rotatably mounted in the middle of the sieve plate 2. The upper side of the first dust cover 28 is connected to the connecting frame 22. The telescopic rod 29 is located inside the first dust cover 28. The movable end of the telescopic rod 29 is connected to the upper side of the first dust cover 28, and the fixed end of the telescopic rod 29 is connected to the lower side of the first dust cover 28. The second dust cover 210 is sleeved on the upper end of the connecting pipe 211, and the upper and lower sides of the second dust cover 210 are respectively connected to the upper end of the connecting pipe 211 and the connecting pipe 212.

[0035] Specifically, both the first dust cover 28 and the second dust cover 210 use deformable foldable corrugated covers as implementation elements.

[0036] During the rotation of the connecting frame 22, the upper and lower ends of the telescopic rod 29 are connected to the first dust cover 28. The telescopic rod 29 prevents the first dust cover 28 from twisting as it rotates with the connecting frame 22. When the screen plate 2 moves up and down, the telescopic rod 29 contracts or extends synchronously with the movement trajectory of the screen plate 2. At the same time, since the first dust cover 28 and the second dust cover 210 adopt a deformable folding corrugated cover structure, they both contract or extend synchronously with the movement of the screen plate 2. The first dust cover 28 can prevent cement raw materials from entering the gap between the connecting frame 22 and the screen plate 2, and the second dust cover 210 can prevent cement raw materials from entering the gap between the connecting pipe 211 and the connecting pipe 212, thereby avoiding friction between the raw materials and equipment components and clogging of the channel, ensuring the stable operation of the anti-clogging mechanism.

[0037] See Figures 1-3 , Figure 4 and Figure 8 As shown, the drive mechanism includes a gear ring 214, a gear disc 215, and a second synchronization component 216; the gear ring 214 is connected to the inner side of the grinding device body 1; the gear disc 215 is rotatably mounted on the connecting frame 22, and the gear disc 215 is connected to the gear ring 214; one working end of the second synchronization component 216 is connected to the gear disc 215, and the other working end of the second synchronization component 216 is connected to the stirring rod 23.

[0038] Specifically, the gear ring 214 and the gear disc 215 are engaged. The second synchronization assembly 216 consists of two synchronization pulleys and a synchronization belt, and the two synchronization pulleys and the synchronization belt of the second synchronization assembly 216 are in a transmission state.

[0039] When the connecting frame 22 drives the stirring rod 23 to rotate, it synchronously drives the toothed disc 215 to move in a circular motion along the toothed ring 214. Based on the meshing transmission relationship between the toothed ring 214 and the toothed disc 215, the toothed disc 215 rotates while moving along the toothed ring 214, thereby driving the synchronous pulley on one side of the second synchronous component 216 to rotate. Since the two synchronous pulleys of the second synchronous component 216 are meshed and driven by a synchronous belt, the synchronous pulley on the other side of the second synchronous component 216 synchronously drives the stirring rod 23 to rotate. This causes the stirring rod 23 to revolve around the screen plate 2 while rotating on its own axis. This dual rotation mode can expand the working range of the stirring rod 23, realize the all-round and uniform mixing of cement raw materials, ensure the mixing uniformity of cement raw materials, and thus improve the grinding efficiency of the cement production grinding device.

[0040] Working principle: When the cement production grinding device is in operation, the power grinding roller assembly 11 is started, causing the stirring rod 23 to revolve around the upper side of the screen plate 2 while rotating on its own axis. This improves the stirring effect of the stirring rod 23 on the cement raw materials. At the same time, the screen plate 2 vibrates up and down to prevent the raw materials from agglomerating on the screen plate 2, reducing the risk of blockage. Meanwhile, the stable vibration mode ensures that the material passes through the screen plate evenly, improving screening efficiency and ensuring the uniformity of product quality. In addition, the dustproof mechanism can effectively block the cement raw materials and ensure the smooth operation of the anti-blocking mechanism.

[0041] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A cement production grinding apparatus, comprising a grinding apparatus body (1), wherein a power grinding roller assembly (11) for grinding cement raw materials is provided on the grinding apparatus body (1), characterized in that, A sieve plate (2) is provided on the inner side of the main body (1) of the grinding device; The outer side of the sieve plate (2) is connected to the ring plate (21); The ring plate (21) is connected to the main body (1) of the grinding device; The grinding device body (1) is equipped with a mixing mechanism for dispersing cement raw materials; The sieve plate (2) is provided with an anti-clogging mechanism to prevent cement raw materials from clogging the sieve holes of the sieve plate (2); The grinding device body (1) is also equipped with a drive mechanism to enhance the dispersing effect of the stirring mechanism.

2. A cement production grinding device according to claim 1, characterized in that, The stirring mechanism includes a transmission mechanism, a connecting frame (22), and a stirring rod (23); The working end of the transmission mechanism is connected to the output end of the power grinding roller assembly (11); The connecting frame (22) is rotatably mounted on the main body (1) of the grinding device, and one end of the connecting frame (22) slides through the upper and lower sides of the sieve plate (2); The stirring rod (23) is rotatably mounted on the connecting frame (22).

3. A cement production grinding device according to claim 2, characterized in that, The transmission mechanism includes a first synchronization component (24) and a bevel gear component (25); The first synchronization component (24) is rotatably mounted on the main body (1) of the grinding device, and the working end of one side of the first synchronization component (24) is connected to the output end of the power grinding roller assembly (11); The bevel gear assembly (25) is rotatably mounted on the grinding device body (1). The working end of one side of the bevel gear assembly (25) is connected to the working end of the first synchronization assembly (24) on the side away from the power grinding roller assembly (11), and the working end of the other side of the bevel gear assembly (25) is connected to the connecting frame (22).

4. A cement production grinding device according to claim 1, characterized in that, The anti-clogging mechanism includes a scraper, a displacement mechanism, and a dust prevention mechanism; The scraper is set on the sieve plate (2), and one end of the scraper is connected to the connecting frame (22); The displacement mechanism is located between the sieve plate (2) and the grinding device body (1). The displacement mechanism is used to drive the sieve plate (2) to move up and down reciprocally. The dustproof mechanism is installed on the displacement mechanism and is used to prevent cement raw materials from entering the gap of the displacement mechanism.

5. A cement production grinding apparatus according to claim 1, characterized in that, The displacement mechanism includes a first convex plate (26), a second convex plate (27), and a guide mechanism; The first protruding plate (26) is connected to the sieve plate (2), and the first protruding plate (26) is sleeved on the outside of the connecting frame (22); The second protruding plate (27) is connected to the first protruding plate (26), and the second protruding plate (27) is connected to the connecting frame (22); The guide mechanism is located on the outside of the first convex plate (26) and the second convex plate (27), and the guide mechanism is used to assist the first convex plate (26) in linear movement.

6. A cement production grinding apparatus according to claim 5, characterized in that, The guiding mechanism includes a connecting pipe (211), a connecting tube (212), and a resilient reset element (213); The connecting pipe (211) is sleeved on the outside of the first convex plate (26) and the second convex plate (27), and the connecting pipe (211) is connected to the sieve plate (2); The connecting pipe (212) is sleeved on the outside of the connecting frame (22), and the inside of the connecting pipe (212) is slidably connected to the outside of the connecting pipe (211). The elastic reset member (213) is disposed inside the connecting pipe (212), and the two ends of the elastic reset member (213) are connected to the connecting pipe (211) and the connecting pipe (212) respectively.

7. A cement production grinding apparatus according to claim 4, characterized in that, The dustproof mechanism includes a first dust cover (28), a telescopic rod (29), and a second dust cover (210); The first dust cover (28) is sleeved on the outside of the connecting frame (22). The first dust cover (28) is rotatably set in the middle of the sieve plate (2). The upper side of the first dust cover (28) is connected to the connecting frame (22). The telescopic rod (29) is located inside the first dust cover (28). The movable end of the telescopic rod (29) is connected to the upper side of the first dust cover (28), and the fixed end of the telescopic rod (29) is connected to the lower side of the first dust cover (28). The second dust cover (210) is fitted onto the upper end of the connecting pipe (211), and the upper and lower sides of the second dust cover (210) are connected to the upper end of the connecting pipe (211) and the connecting pipe (212) respectively.

8. A cement production grinding apparatus according to claim 1, characterized in that, The drive mechanism includes a gear ring (214), a gear disc (215), and a second synchronization assembly (216); The toothed ring (214) is connected to the inner side of the grinding device body (1); The gear disc (215) is rotatably mounted on the connecting frame (22), and the gear disc (215) is connected to the gear ring (214); The working end of one side of the second synchronization component (216) is connected to the gear plate (215), and the working end of the other side of the second synchronization component (216) is connected to the stirring rod (23).

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