Ore grinding machine

By introducing dust prevention and unblocking devices into the grinding mill, the problems of dust pollution and feed blockage have been solved, achieving clean production and stable operation, and improving the environmental protection and operational safety of the grinding mill.

CN224253018UActive Publication Date: 2026-05-19FUJIAN JINGWAN NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN JINGWAN NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-04-10
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing grinding mills generate a large amount of dust and gravel during operation, polluting the environment and threatening health. At the same time, ore blocks may accumulate, causing blockages in the feed hopper, affecting the continuous operation and processing efficiency of the equipment.

Method used

The design incorporates dustproof, vacuuming, and unblocking devices, including components such as a dustproof shell, sliding plate, vacuum pipe, eccentric wheel, and slide bar. These devices achieve dust control and blockage removal through sealing, vacuuming, and compression.

Benefits of technology

Effectively control dust diffusion, ensure smooth feeding process, improve equipment operation stability and processing efficiency, and reduce environmental pollution and equipment downtime maintenance needs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224253018U_ABST
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Abstract

The utility model relates to an ore grinding machine which comprises a base, the base is fixedly connected with a smashing assembly, the smashing assembly is fixedly connected with a feeding hopper, the feeding hopper is fixedly connected with a dustproof device used for shielding dust, the dustproof device is fixedly connected with a dust suction device used for sucking the dust, and the dust suction device is fixedly connected with a feeding hopper. And a dredging device for extruding stones is fixedly connected outside the feeding hopper. The ore dredging device has the advantages that in the actual implementation process, the driving motor is started and drives the eccentric wheel to rotate, the eccentric wheel periodically exerts extrusion force on the extrusion plate and the sliding rod in the rotating process, the sliding rod is promoted to slide in the feeding hopper, and therefore impact force is exerted on ore blocks in the feeding hopper, effective dredging of ore is achieved, and the service life of the ore dredging device is prolonged. According to the design, dust diffusion is effectively controlled, the cleanliness of the working environment is improved, meanwhile, the smoothness of the feeding process is ensured, and the running stability of equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of grinding mill technology, and in particular to a grinding mill. Background Technology

[0002] A grinding mill is a piece of equipment used for fine grinding of ores. It is widely used in metallurgy, mining, chemical and other industries. It is mainly used to grind ores from larger particles to the fine particle size required for mineral processing or other industrial applications. Its working principle usually relies on the grinding media (such as steel balls, steel rods or the ore itself) to apply impact, compression and grinding action to the ore in a rotating cylinder or vibrating environment, so as to further reduce the particle size of the material.

[0003] Existing technologies disclose several utility model patents in the field of grinding mill technology. Among them, utility model patent application number CN221413282U discloses a fine iron ore grinding mill. Its basic description is as follows: This utility model belongs to the field of grinding mill technology and discloses a fine iron ore grinding mill, including a shell. A fixed frame is fixedly installed at the bottom of the shell. Fixed plates are fixedly installed on both the left and right sides of the inner side of the fixed frame. A collection box is movably connected to the inner side of the fixed plate. This utility model, by setting up a collection box, a lifting plate, a spring, a rotating shaft, and an elliptical plate, allows the operator to start a first motor. The operation of the first motor will cause the rotating shaft to rotate, carrying the elliptical plate. At this time, the elliptical plate will rotate and compress the collection box. The collection box will move upward smoothly under the limiting cooperation of the lifting plate and the fixed plate. The lifting plate will then exert a compressive force on the spring. As the elliptical plate rotates, the spring will, due to its elastic restoring effect, cause the lifting plate to move downward rapidly, carrying the collection box. The iron ore inside the collection box will not accumulate due to the vibration of the collection box.

[0004] During operation, existing technology generates a large amount of dust and gravel, which not only pollutes the operating environment but may also pose a threat to the health and safety of workers. In addition, ore blocks may accumulate during the feeding process, causing blockages in the feed hopper and affecting the continuous operation and processing efficiency of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the aforementioned problems in the prior art, this utility model provides a grinding mill that solves the problem that, during operation, the crushing process generates a large amount of dust and gravel, which not only pollutes the operating environment but may also threaten the health and safety of workers. In addition, ore blocks may accumulate during the feeding process, causing blockage of the feed hopper and affecting the continuous operation and processing efficiency of the equipment.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solution adopted by this utility model is as follows:

[0009] A grinding mill includes a base, a crushing assembly fixedly connected to the base, a feed hopper fixedly connected to the crushing assembly, a dustproof device for blocking dust fixedly connected to the feed hopper, a dust suction device for absorbing dust fixedly connected to the dustproof device, and a drainage device for squeezing stones fixedly connected to the outside of the feed hopper.

[0010] The dustproof device includes a dustproof shell, a sliding sleeve is fixedly connected inside the dustproof shell, and a sliding plate for blocking dust is slidably connected inside the sliding sleeve.

[0011] The unblocking device includes a drive motor, the output end of which is fixedly connected to an eccentric wheel for applying pressure, and a sliding rod for squeezing the stones is attached to the outside of the eccentric wheel.

[0012] The dustproof device also includes a handle and a sealing gasket. The handle is fixedly connected to the upper surface of the slide plate, the sealing gasket is fixedly connected inside the dustproof shell, and the slide plate is locked outside the sealing gasket.

[0013] The dust collection device includes a connecting base, which is fixedly connected to the back of the feed hopper. A fan is fixedly connected to the connecting base, and a pipe is fixedly connected to the input end of the fan. A dust collection box is connected through one end of the pipe, and a suction pipe is connected through the dust collection box. One end of the suction pipe is connected through the dustproof shell.

[0014] A filter screen is installed at the connection surface between the pipe and the dust collection box, and the dust collection box and the pipe adopt a quick-release structure for easy cleaning.

[0015] The unblocking device also includes a connecting plate, which is fixedly connected to the crushing assembly. The drive motor is fixedly connected to the connecting plate. The slide rod is fitted with a pressing plate and a return spring.

[0016] The slide bar is slidably connected inside the feed hopper, and a wear-resistant block is provided at one end of the slide bar.

[0017] One end of the pull-back spring is fixedly connected inside the extrusion plate, and the other end of the pull-back spring is fixedly connected outside the feed hopper.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows: In actual implementation, when it is necessary to add material to the feed hopper, simply pour the ore blocks into the feed hopper. At this time, the crushing component starts and crushes the ore blocks. After the feeding is completed, the operator pulls the handle to drive the sliding plate to slide in the sliding sleeve. When the sliding plate moves to the sealing gasket position, the dustproof shell is sealed. At the same time, the fan is started. The fan creates negative pressure in the dust collection box through the pipe, so that the suction force acts on the inside of the dustproof shell through the suction pipe, sucking the dust into the dust collection box, and intercepting and purifying it through the filter screen. When the feed hopper is blocked, the drive motor is started, and the drive motor drives the eccentric wheel to rotate. During the rotation, the eccentric wheel periodically applies pressure to the extrusion plate and the sliding rod, causing the sliding rod to slide in the feed hopper, thereby applying impact force to the internal ore blocks and achieving effective unblocking of the ore. This design not only effectively controls the dust diffusion and improves the cleanliness of the working environment, but also ensures the smoothness of the feeding process and improves the stability of equipment operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the dustproof device of this utility model;

[0022] Figure 3 This is a three-dimensional cross-sectional structural diagram of the dustproof shell of this utility model;

[0023] Figure 4 This utility model Figure 1 An enlarged structural diagram of part A in the middle.

[0024] [Explanation of Labels in the Attached Image]

[0025] 1. Base; 2. Crushing assembly; 3. Feed hopper; 4. Dustproof device; 41. Dustproof shell; 42. Sliding sleeve; 43. Slide plate; 44. Handle; 45. Sealing gasket; 5. Dust collection device; 51. Connecting seat; 52. Fan; 53. Pipe; 54. Dust collection box; 55. Suction pipe; 6. Unblocking device; 61. Connecting plate; 62. Drive motor; 63. Eccentric wheel; 64. Extrusion plate; 65. Slide rod; 66. Return spring. Detailed Implementation

[0026] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figures 1 to 4As shown, a grinding mill of this utility model includes a base 1, a crushing component 2 fixedly connected to the base 1, a feed hopper 3 fixedly connected to the crushing component 2, a dustproof device 4 for blocking dust fixedly connected to the feed hopper 3, a dust suction device 5 for absorbing dust fixedly connected to the dustproof device 4, and a drainage device 6 for squeezing stones fixedly connected to the outside of the feed hopper 3.

[0028] The dustproof device 4 includes a dustproof shell 41, a sliding sleeve 42 fixedly connected inside the dustproof shell 41, and a sliding plate 43 for blocking dust slidably connected inside the sliding sleeve 42.

[0029] The unblocking device 6 includes a drive motor 62, the output end of which is fixedly connected to an eccentric wheel 63 for applying compressive force. A sliding rod 65 for compressing the stones is attached to the outside of the eccentric wheel 63. In actual implementation, when it is necessary to add material to the feed hopper 3, simply pour the ore blocks into the feed hopper 3. At this time, the crushing component 2 starts and crushes the ore blocks. After feeding is completed, the operator pulls the handle 44 to move the sliding plate 43 within the sliding sleeve 42. When the sliding plate 43 moves to the sealing gasket 45 position, the dust cover 41 achieves a seal.

[0030] Optionally, the dustproof device 4 also includes a handle 44 and a sealing gasket 45. The handle 44 is fixedly connected to the upper surface of the slide plate 43, and the sealing gasket 45 is fixedly connected inside the dustproof shell 41. The slide plate 43 is secured to the outside of the sealing gasket 45. In actual implementation, the handle 44 is fixedly connected to the upper surface of the slide plate 43, allowing the operator to easily control the sliding of the slide plate 43. When it is necessary to close the dustproof shell 41, the operator only needs to pull the handle 44 to make the slide plate 43 slide smoothly along the sliding sleeve 42, achieving a quick seal. This mating structure simplifies the operation steps, improves the convenience of sealing, and reduces the possibility of external dust entering, thereby optimizing the dustproof effect.

[0031] Optionally, the dust collection device 5 includes a connecting seat 51, which is fixedly connected to the back of the feed hopper 3. A fan 52 is fixedly connected to the connecting seat 51, and a pipe 53 is fixedly connected to the input end of the fan 52. One end of the pipe 53 is connected to a dust collection box 54, and a suction pipe 55 is connected through the dust collection box 54. One end of the suction pipe 55 is connected through the dustproof shell 41. In actual implementation, when the fan 52 is started, the fan 52 creates a negative pressure in the dust collection box 54 through the pipe 53, so that the suction force acts on the inside of the dustproof shell 41 through the suction pipe 55, sucking the dust into the dust collection box 54, and then intercepting and purifying it through the filter screen.

[0032] Optionally, a filter screen is installed at the connection surface between the pipe 53 and the dust collection box 54, and a quick-release structure is adopted between the dust collection box 54 and the pipe 53 for easy cleaning. In actual implementation, during the operation of the fan 52, the pipe 53 will suck dust into the dust collection box 54, and the filter screen installed at the connection surface of the pipe 53 can effectively intercept larger particles, preventing them from entering the pipe 53 and affecting the operating efficiency of the fan 52. This combination not only improves the dust filtration effect, but also reduces dust accumulation inside the equipment, reduces maintenance frequency, and ensures long-term stable operation of the system. The quick-release structure allows the dust collection box 54 to be quickly disassembled and reinstalled. During cleaning and maintenance, operators can easily remove the dust collection box 54 and remove the internal dust without cumbersome tools or disassembly. This design improves maintenance convenience, shortens cleaning time, ensures that the dust collection system always maintains a good working condition, and reduces the impact of equipment downtime for maintenance.

[0033] Optionally, the unblocking device 6 also includes a connecting plate 61, which is fixedly connected to the crushing assembly 2. A drive motor 62 is fixedly connected to the connecting plate 61. A pressing plate 64 is fitted over the slide rod 65, and a return spring 66 is fitted over the slide rod 65. In actual implementation, when the feed hopper 3 becomes blocked, the drive motor 62 is started, driving the eccentric wheel 63 to rotate. During rotation, the eccentric wheel 63 periodically applies pressure to the pressing plate 64 and the slide rod 65, causing the slide rod 65 to slide within the feed hopper 3, thereby applying impact force to the internal ore blocks and effectively unblocking the ore.

[0034] Optionally, the slide rod 65 is slidably connected inside the feed hopper 3, and a wear-resistant block is provided at one end of the slide rod 65. In actual implementation, during the feeding process, the slide rod 65 is slidably connected inside the feed hopper 3 and can reciprocate along the inside of the feed hopper 3 under the action of the drive mechanism. The wear-resistant block is provided at one end of the slide rod 65, which can effectively reduce the frictional loss between the slide rod 65 and the inner wall of the feed hopper 3, and improve the durability of the slide rod 65. This matching method not only enhances the stability of the slide rod 65, but also extends the service life of the equipment, reduces the maintenance needs caused by wear, and thus improves the reliability and operating efficiency of the feeding system.

[0035] Optionally, one end of the return spring 66 is fixedly connected inside the extrusion plate 64, and the other end is fixedly connected outside the feed hopper 3. In actual implementation, one end of the return spring 66 is fixed inside the extrusion plate 64, and the other end is fixed outside the feed hopper 3. When the extrusion plate 64 is pushed by force, the spring deforms and stores elastic potential energy. When the external force is released, the return spring 66 quickly returns to its original shape, resetting the extrusion plate 64. This arrangement ensures that the extrusion plate 64 maintains good rebound capability under the drive of the eccentric wheel 63, making the dredging process of the feed hopper 3 more stable and efficient. At the same time, it reduces mechanical fatigue caused by the long-term force on the slide bar 65, improving the durability and automatic recovery capability of the system.

[0036] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A grinding mill, comprising a base, characterized in that: A crushing component is fixedly connected to the base, a feeding hopper is fixedly connected to the crushing component, a dustproof device for blocking dust is fixedly connected to the feeding hopper, a dust suction device for absorbing dust is fixedly connected to the dustproof device, and a clearing device for squeezing stones is fixedly connected to the outside of the feeding hopper. The dustproof device includes a dustproof shell, a sliding sleeve is fixedly connected inside the dustproof shell, and a sliding plate for blocking dust is slidably connected inside the sliding sleeve. The unblocking device includes a drive motor, the output end of which is fixedly connected to an eccentric wheel for applying pressure, and a sliding rod for squeezing the stones is attached to the outside of the eccentric wheel.

2. The grinding mill according to claim 1, characterized in that: The dustproof device also includes a handle and a sealing gasket. The handle is fixedly connected to the upper surface of the slide plate, the sealing gasket is fixedly connected inside the dustproof shell, and the slide plate is locked outside the sealing gasket.

3. A grinding mill according to claim 1, characterized in that: The dust collection device includes a connecting base, which is fixedly connected to the back of the feed hopper. A fan is fixedly connected to the connecting base, and a pipe is fixedly connected to the input end of the fan. A dust collection box is connected through one end of the pipe, and a suction pipe is connected through the dust collection box. One end of the suction pipe is connected through the dustproof shell.

4. A grinding mill according to claim 3, characterized in that: A filter screen is installed at the connection surface between the pipe and the dust collection box, and the dust collection box and the pipe adopt a quick-release structure for easy cleaning.

5. A grinding mill according to claim 1, characterized in that: The unblocking device also includes a connecting plate, which is fixedly connected to the crushing assembly. The drive motor is fixedly connected to the connecting plate. The slide rod is fitted with a pressing plate and a return spring.

6. A grinding mill according to claim 1, characterized in that: The slide bar is slidably connected inside the feed hopper, and a wear-resistant block is provided at one end of the slide bar.

7. A grinding mill according to claim 5, characterized in that: One end of the pull-back spring is fixedly connected inside the extrusion plate, and the other end of the pull-back spring is fixedly connected outside the feed hopper.