Anti-blocking device of spinning roller mill
By introducing pre-crushing and vibration components into the rotary mill, the problem of feed inlet blockage was solved, enabling smooth material feeding and pre-crushing, and improving the equipment's operational stability and production efficiency.
Patent Information
- Application Number
- CN202422700607.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Rotary mills are prone to blockage at the feed inlet, which can cause equipment downtime and affect production efficiency.
A cyclone mill anti-clogging device was designed, comprising a pre-grinding component and a vibration component. The pre-grinding component controls the material feeding speed and pre-crushes the material through the cooperation of an auger and a grinding roller. The vibration component causes the filter plate to vibrate through a lever and a striking block to prevent material accumulation and clogging.
It effectively prevents material blockage at the feed inlet, keeps the screen holes unobstructed, and improves the operational stability and production efficiency of the rotary mill.
Smart Images

Figure CN223530542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary mill technology, specifically to a rotary mill anti-clogging device. Background Technology
[0002] A rotary mill is an industrial device used to crush and grind various materials. It grinds materials into fine powder through the friction between rotating wheels and grinding discs. It is widely used in mining, chemical, and building materials industries. Its advantages include high-efficiency crushing capacity and low energy consumption, and it is suitable for processing materials with high hardness.
[0003] However, in actual use, materials that are too large cannot easily enter the rotary mill and may accumulate at the feed inlet, hindering the normal flow of subsequent materials. This accumulation can cause the feed inlet to become blocked, forcing the equipment to stop for cleaning, which affects production efficiency and normal operation of the equipment. In view of this, we propose a rotary mill anti-clogging device. Utility Model Content
[0004] The purpose of this invention is to provide a clogging prevention device for a rotary mill to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary mill anti-clogging device, comprising a rotary mill, wherein a feed hopper is fixedly connected to the top of the rotary mill, and a pre-grinding assembly is provided on the inner wall of the feed hopper, the pre-grinding assembly comprising:
[0006] The motor is fixedly connected to the inner wall of the feed hopper, the motor is fixedly connected to the top end face of the mounting frame, the output end of the motor is fixedly connected to the rotating shaft, the side wall of the rotating shaft is sleeved with an auger, and the inner wall of the feed hopper is fixedly connected to the crossbar.
[0007] The mounting box is fixedly connected to the inner wall of the feed hopper. A rotating rod is sleeved on the inner bottom of the mounting box. A crushing roller is fixedly connected to the bottom of the rotating rod. A belt is driven to the side wall of the rotating rod.
[0008] The second rolling roller is rotatably connected to the inner bottom of the mounting box, and a second belt is driven to the side wall of the transmission rod. A driving gear is fixedly connected to the side wall of the transmission rod. A second rotating rod is sleeved on the inner bottom of the mounting box, and the second rolling roller is fixedly connected to the bottom of the second rotating rod. A driven gear is fixedly connected to the side wall of the second rotating rod.
[0009] Preferably, a filter plate is fixedly connected to the inner wall of the feed hopper, the top of the filter plate is movably connected to a first rolling roller, and the top of the filter plate is movably connected to a second rolling roller.
[0010] Preferably, the first belt is connected to the rotating shaft for transmission, the second belt is connected to the rotating shaft for transmission, and the driving gear meshes with the driven gear.
[0011] Preferably, the feed hopper is provided with a square temporary storage section and a cylindrical pre-grinding section. The diameter of the auger is equal to the inner diameter of the cylindrical pre-grinding section. The upper half of the auger is located in the square temporary storage section, and the lower half of the auger is located in the cylindrical pre-grinding section. The auger controls the speed at which the material falls into the cylindrical pre-grinding section.
[0012] Preferably, a vibration assembly is provided at the bottom of the filter plate. The vibration assembly includes a striking block, which is fixedly connected to the bottom end face of the filter plate. A rotating rod is fixedly connected to the end of the second rolling roller away from the second rotating rod, and a toggle rod is sleeved at the bottom end of the rotating rod.
[0013] Preferably, the actuating rod is a rubber rod, which is movably connected to the striking block. The actuating rod impacts the striking block, causing the filter plate to vibrate and the material on the filter plate to move. Material smaller than the filter holes can pass through the filter holes and fall into the rotary mill, while material larger than the filter holes can be pre-crushed by the first and second crushing rollers.
[0014] Compared with the prior art, this utility model provides a rotary mill anti-clogging device, which has the following beneficial effects:
[0015] 1. The anti-clogging device of this rotary mill, through the pre-grinding component, controls the feeding speed of the material by rotating the auger, avoiding the accumulation of material on the filter plate and reducing the risk of clogging. At the same time, the shaking of the auger disperses the material that is stuck together, promoting the separation between the materials so that they can be more easily screened by the filter plate. The material is pre-crushed into smaller pieces by the rotation of the first and second grinding rollers, preventing the material from being too large and causing blockage at the feed inlet of the rotary mill.
[0016] 2. The anti-clogging device of the rotary mill uses a vibration component, where the actuating rod and the striking block collide to vibrate the filter plate, causing the material on the filter plate to move. Material smaller than the filter holes can pass through the filter holes and fall into the rotary mill, while material larger than the filter holes can be pre-crushed by the first and second crushing rollers to keep the screen holes unobstructed and avoid clogging. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the feed hopper of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the mounting box of this utility model;
[0020] Figure 4 This is a schematic diagram of the auger structure of this utility model;
[0021] Figure 5 This is a bottom view of the filter plate structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the crossbar structure of this utility model.
[0023] In the diagram: 1. Rotary mill; 2. Feed hopper; 3. Pre-rolling assembly; 301. Mounting frame; 302. Motor; 303. Rotating shaft; 304. Screwdriver; 305. Mounting box; 306. Rotating rod one; 307. Roller one; 308. Belt one; 309. Transmission rod; 310. Drive gear; 311. Belt two; 312. Rotating rod two; 313. Driven gear; 314. Roller two; 315. Crossbar; 4. Filter plate; 5. Vibration assembly; 501. Rotating rod; 502. Actuating rod; 503. Striking block. Detailed Implementation
[0024] like Figures 1-6 As shown, this utility model provides a technical solution: a rotary mill anti-clogging device, including a rotary mill 1, a feed hopper 2 fixedly connected to the top of the rotary mill 1, a pre-rolling assembly 3 provided on the inner wall of the feed hopper 2, the pre-rolling assembly 3 including a mounting frame 301, a motor 302, a rotating shaft 303, an auger 304, a mounting box 305, a rotating rod 306, a rolling roller 307, a belt 308, a transmission rod 309, a drive gear 310, a second belt 311, a second rotating rod 312, a driven gear 313, and a second rolling roller 314.
[0025] In one embodiment of this utility model, a mounting frame 301 is fixedly connected to the inner wall of the feed hopper 2, a motor 302 is fixedly connected to the top end face of the mounting frame 301, a rotating shaft 303 is fixedly connected to the output end of the motor 302, an auger 304 is sleeved on the side wall of the rotating shaft 303, a crossbar 315 is fixedly connected to the inner wall of the feed hopper 2, the feed hopper 2 is provided with a square temporary storage part and a cylindrical pre-grinding part, the diameter of the auger 304 is equal to the inner diameter of the cylindrical pre-grinding part, the upper half of the auger 304 is located in the square temporary storage part, the lower half of the auger 304 is located in the cylindrical pre-grinding part, and the auger 304 controls the speed at which the material falls into the cylindrical pre-grinding part.
[0026] Mounting box 305 is fixedly connected to the inner wall of feed hopper 2. A rotating rod 306 is sleeved on the inner bottom of mounting box 305. A crushing roller 307 is fixedly connected to the bottom of rotating rod 306. A belt 308 is driven to the side wall of rotating rod 306. A transmission rod 309 is rotatably connected to the inner bottom of mounting box 305. A belt 311 is driven to the side wall of transmission rod 309. Belt 308 is driven to the rotating shaft 303. Belt 311 is driven to the rotating shaft 303. A drive gear 310 is fixedly connected to the side wall of transmission rod 309. A rotating rod 312 is sleeved on the inner bottom of mounting box 305. A crushing roller 314 is fixedly connected to the bottom of rotating rod 312. A driven gear 313 is fixedly connected to the side wall of rotating rod 312. The drive gear 310 and the driven gear 313 mesh with each other.
[0027] A filter plate 4 is fixedly connected to the inner wall of the feed hopper 2. The top of the filter plate 4 is movably connected to the first rolling roller 307, and the top of the filter plate 4 is movably connected to the second rolling roller 314.
[0028] Material is fed into the feed hopper 2, and the motor 302 drives the rotating shaft 303 to rotate, which in turn drives the auger 304 to rotate. The rotation of the auger 304 controls the feeding speed of the material, avoids the accumulation of material on the filter plate 4, and reduces the risk of clogging. A crossbar 315 is fixedly connected to the inner wall of the feed hopper 2. When the auger 304 rotates, the crossbar 315 causes the auger 304 to be lifted. When the bottom part of the auger 304 passes the crossbar 315, the auger 304 will fall down due to gravity, causing the material to be impacted, shaking off the materials that are stuck together, promoting the separation between the materials, so that they can be more easily screened by the filter plate 4.
[0029] When larger materials are intercepted by the filter plate 4, the rotating shaft 303 rotates in the forward direction, which, through the transmission of belt 1 308 and belt 2 311, drives the rotating rod 1 306 and the crushing roller 1 307 to rotate in the forward direction. This drives the transmission rod 309 and the drive gear 310 to rotate in the reverse direction, which in turn drives the driven gear 313, the rotating rod 2 312 and the crushing roller 2 314 to rotate in the reverse direction. This causes the material to be pre-crushed into smaller pieces during the rotation of the crushing roller 1 307 and the crushing roller 2 314, preventing the material from being too large and causing blockage at the feed inlet of the rotary mill 1.
[0030] In addition, a vibration assembly 5 is provided at the bottom of the filter plate 4. The vibration assembly 5 includes a rotating rod 501, a toggle rod 502, and a striking block 503. The striking block 503 is fixedly connected to the bottom end face of the filter plate 4. The end of the second roller 314 away from the second rotating rod 312 is fixedly connected to the rotating rod 501. The bottom end of the rotating rod 501 is sleeved with a toggle rod 502, which is a rubber rod. The toggle rod 502 is movably connected to the striking block 503. The toggle rod 502 impacts the striking block 503, causing the filter plate 4 to vibrate. This causes the material on the filter plate 4 to move. Material smaller than the filter holes can pass through the filter holes and fall into the rotary mill 1. Material larger than the filter holes can be pre-crushed by the first roller 307 and the second roller 314 to keep the screen holes unobstructed and avoid clogging.
[0031] In this utility model, when in use, the material is put into the feed hopper 2, the auger 304 rotates to control the feeding speed of the material, the auger 304 shakes to disperse the material that is stuck together, and then the material is pre-crushed into smaller pieces by the rotation of the first crushing roller 307 and the second crushing roller 314. The actuating rod 502 and the striking block 503 collide to make the filter plate 4 vibrate, causing the material on the filter plate 4 to move. The material smaller than the filter hole can pass through the filter hole and fall into the rotary mill 1, while the material larger than the filter hole is pre-crushed by the first crushing roller 307 and the second crushing roller 314.
[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A rotary mill anti-clogging device, comprising a rotary mill (1), wherein a feed hopper (2) is fixedly connected to the top of the rotary mill (1), characterized in that: The inner wall of the feed hopper (2) is provided with a pre-rolling assembly (3), the pre-rolling assembly (3) including: The motor (302) is fixedly connected to the inner wall of the feed hopper (2) by a mounting bracket (301), the motor (302) is fixedly connected to the top end face of the mounting bracket (301), the output end of the motor (302) is fixedly connected to a rotating shaft (303), the side wall of the rotating shaft (303) is sleeved with an auger (304), and the inner wall of the feed hopper (2) is fixedly connected to a crossbar (315). Mounting box (305), which is fixedly connected to the inner wall of the feed hopper (2), with a rotating rod (306) sleeved on the inner bottom of the mounting box (305), a rolling roller (307) fixedly connected to the bottom of the rotating rod (306), and a belt (308) drivingly connected to the side wall of the rotating rod (306). The second rolling roller (314) is rotatably connected to the inner bottom of the mounting box (305), the second belt (311) is connected to the side wall of the transmission rod (309), the driving gear (310) is fixedly connected to the side wall of the transmission rod (309), the second rotating rod (312) is sleeved on the inner bottom of the mounting box (305), the second rolling roller (314) is fixedly connected to the bottom of the second rotating rod (312), and the driven gear (313) is fixedly connected to the side wall of the second rotating rod (312).
2. The anti-clogging device for a rotary mill according to claim 1, characterized in that: The inner wall of the feed hopper (2) is fixedly connected to a filter plate (4), the top of the filter plate (4) is movably connected to the first rolling roller (307), and the top of the filter plate (4) is movably connected to the second rolling roller (314).
3. The anti-clogging device for a rotary mill according to claim 1, characterized in that: The first belt (308) is connected to the rotating shaft (303) for transmission, the second belt (311) is connected to the rotating shaft (303) for transmission, and the driving gear (310) meshes with the driven gear (313).
4. The anti-clogging device for a rotary mill according to claim 1, characterized in that: The feed hopper (2) is provided with a square temporary storage section and a cylindrical pre-rolling section. The diameter of the auger (304) is equal to the inner diameter of the cylindrical pre-rolling section. The upper part of the auger (304) is located in the square temporary storage section, and the lower part of the auger (304) is located in the cylindrical pre-rolling section.
5. The anti-clogging device for a rotary mill according to claim 2, characterized in that: The bottom of the filter plate (4) is provided with a vibration assembly (5), the vibration assembly (5) includes a striking block (503), the striking block (503) is fixedly connected to the bottom end face of the filter plate (4), the end of the second roller (314) away from the second rotating rod (312) is fixedly connected to a rotating rod (501), and the bottom end of the rotating rod (501) is sleeved with a toggle rod (502).
6. The anti-clogging device for a rotary mill according to claim 5, characterized in that: The actuating rod (502) is a rubber rod, and the actuating rod (502) is movably connected to the striking block (503).