Stepped multi-stage kaolin grinding and crushing device
By using a stepped multi-stage grinding and pulverizing device for kaolin, the power component controls the feeding and the multi-stage grinding units work together, solving the problems of poor connection of grinding equipment and material blockage. This achieves efficient and uniform kaolin pulverization and collection, thus improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGTAI YUXING POWDER CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-22
AI Technical Summary
Existing kaolin grinding equipment suffers from insufficient smoothness in the connection between grinding units, which easily leads to material blockage, affecting production efficiency, and uneven particle size distribution, resulting in unstable product quality.
The device employs a stepped multi-stage grinding and pulverizing unit for kaolin, including a primary grinding cylinder, a grinding cylinder, and a grading and screening system. The feeding is controlled by a spiral blade driven by a power component, the rollers perform initial pulverization, the grinding balls perform fine grinding, and the material is collected by a collection mechanism. Each unit is connected in a conical shape to reduce dead angles, achieving multi-stage pulverization and smooth connection.
This technology enables multi-stage crushing and collection of kaolin, improving production efficiency, ensuring uniform particle size distribution and product quality stability, and reducing material blockage.
Smart Images

Figure CN224265780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grinding and pulverizing devices, and in particular to a stepped multi-stage grinding and pulverizing device for kaolin. Background Technology
[0002] In modern industrial systems, kaolin, with its excellent plasticity, binding properties, and refractoriness, has become an indispensable basic raw material for the ceramics, papermaking, coatings, rubber, and plastics industries. As various industries continue to raise their requirements for the quality of kaolin products, the control over its particle size distribution and particle morphology has become increasingly stringent. This makes the grinding and pulverizing process of kaolin a key factor in determining product quality.
[0003] Traditional kaolin grinding and pulverizing methods often employ single grinding equipment. However, a single grinding device is insufficient to grind kaolin to the required fineness in a single pass, and uneven particle size distribution leads to unstable product quality. To address the problems of traditional single grinding equipment, a stepped multi-stage grinding and pulverizing device has emerged. This device consists of multiple grinding units of different specifications and functions connected in series. Each unit works collaboratively to progressively refine the kaolin. Its main components include a primary crushing unit, a secondary grinding unit, a fine grinding unit, a material conveying system, and a grading and screening system. The primary crushing unit first performs preliminary crushing of the kaolin to reduce particle size. The secondary grinding unit further refines the particles, and the fine grinding unit achieves high-precision grinding of the kaolin to achieve the required particle size. The material conveying system is responsible for the smooth transfer of kaolin between the grinding units. The grading and screening system performs real-time particle size detection on the ground material, returning unqualified material to the corresponding grinding unit for further processing. However, the connection between the grinding units in the existing technology is not smooth enough, which can easily lead to material blockage and affect overall production efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a stepped multi-stage grinding and pulverizing device for kaolin, which aims to improve the problem of insufficient smooth connection and easy material blockage in the existing technology.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a kaolin stepped multi-stage grinding and pulverizing device, including a primary grinding cylinder, a feeding mechanism at the top of the primary grinding cylinder, a pulverizing mechanism on the inner wall of the primary grinding cylinder, the pulverizing mechanism being used for preliminary pulverization, a grinding cylinder being fixedly connected to the bottom of the primary grinding cylinder, and a collecting mechanism being provided at the bottom of the grinding cylinder.
[0006] The feeding mechanism includes a feeding cylinder, the bottom of which is fixedly connected to the top of the primary crushing cylinder. Multiple support rods are fixedly connected to the inner wall of the feeding cylinder. A support box is fixedly connected to the right side of each support rod. A power assembly is provided at the bottom of the support box.
[0007] As a further description of the above technical solution:
[0008] The crushing mechanism includes multiple rollers, the outer wall of the rollers is slidably connected to the inner wall of the primary crushing cylinder, a roller shaft is fixedly connected to the right side of the rollers, a driven component is provided at the top of the roller shaft, an active component is provided on the outer wall of the driven component, and a fine grinding mechanism is provided at the bottom of the active component.
[0009] As a further description of the above technical solution:
[0010] The power assembly includes a motor, the top of which is fixedly connected to the bottom of the support box, and a long column is fixedly connected to the output end of the motor. A spiral blade is fixedly connected to the outer wall of the long column.
[0011] As a further description of the above technical solution:
[0012] The driven component includes a short column, the bottom of which is fixedly connected to the top of the roller, and a driven gear is fixedly connected to the outer wall of the short column.
[0013] As a further description of the above technical solution:
[0014] The active component includes an active gear, the outer wall of which meshes with the outer wall of the driven gear, and an active shaft is fixedly connected to the inner wall of the active gear.
[0015] As a further description of the above technical solution:
[0016] The fine grinding mechanism includes a connecting column, the top of which is fixedly connected to the bottom of the drive shaft, a connecting rod fixedly connected to the bottom of the connecting column, and a grinding ball rotatably connected to the outer wall of the connecting rod.
[0017] As a further description of the above technical solution:
[0018] The collection mechanism includes a collection box, the top of which is fixedly connected to the bottom of the grinding cylinder. A grinding plate is provided on the top of the collection box, and a lifting assembly is provided on the top of the collection box.
[0019] As a further description of the above technical solution:
[0020] The lifting assembly includes a telescopic column, the bottom of which is fixedly connected to the top of the collection box. A receiving plate is fixedly connected to the inner wall of the collection box, and an insert plate is slidably connected to the inner wall of the receiving plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by turning on the motor, the long column drives the spiral blades to rotate, which allows control over the amount of material fed. The material is then transported to the primary crushing cylinder for initial crushing, followed by fine grinding in the grinding cylinder, and then into the collection mechanism. By extending the left end of the telescopic column, the insert plate slides out of the receiving plate, and shortening the right end, the ground kaolin is collected. This achieves the function of multi-stage crushing and collection of kaolin, enhancing its practicality. Furthermore, the use of conical connections between the various units reduces dead angles and makes the connection smoother.
[0023] 2. In this utility model, the support box drives the long column and the drive shaft to rotate, which in turn drives the drive gear to drive multiple driven gears to rotate. This process initially rolls the kaolin that falls from the feed cylinder. Then, the initially rolled kaolin is repeatedly ground by grinding balls, achieving a thorough grinding effect and increasing efficiency. Attached Figure Description
[0024] Figure 1 This is a perspective view of the front side of the primary grinding cylinder of the stepped multi-stage grinding and pulverizing device for kaolin proposed in this utility model.
[0025] Figure 2 This is a partial structural breakdown diagram of the feeding cylinder of the kaolin stepped multi-stage grinding and pulverizing device proposed in this utility model;
[0026] Figure 3 This is a partial structural diagram of the drive gear of the kaolin stepped multi-stage grinding and pulverizing device proposed in this utility model;
[0027] Figure 4 This is a partial structural diagram of the connecting column of the kaolin stepped multi-stage grinding and pulverizing device proposed in this utility model;
[0028] Figure 5 This is a partial structural diagram of the insert plate of the kaolin stepped multi-stage grinding and pulverizing device proposed in this utility model.
[0029] Legend:
[0030] 1. Primary crushing cylinder; 2. Feeding mechanism; 201. Feeding cylinder; 202. Support rod; 203. Support box; 204. Power assembly; 2041. Motor; 2042. Long column; 2043. Spiral blade; 3. Crushing mechanism; 301. Roller; 302. Roller shaft; 303. Driven assembly; 3031. Short column; 3032. Driven gear; 304. Driven assembly; 3041. Drive gear; 3042. Drive shaft; 305. Fine grinding mechanism; 3051. Connecting column; 3052. Connecting rod; 3053. Grinding ball; 4. Collection mechanism; 401. Collection box; 402. Grinding plate; 403. Lifting assembly; 4031. Insert plate; 4032. Receiving plate; 4033. Telescopic column; 5. Grinding cylinder. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see the appendix Figure 1 - Appendix Figure 2 An embodiment of this utility model provides a multi-stage grinding and pulverizing device for kaolin, including a primary grinding cylinder 1, a feeding mechanism 2 at the top of the primary grinding cylinder 1, and a pulverizing mechanism 3 on the inner wall of the primary grinding cylinder 1. The pulverizing mechanism 3 is used for preliminary pulverization of the kaolin entering the primary grinding cylinder 1, breaking it into smaller particles to prepare for subsequent grinding processes. A grinding cylinder 5 is fixedly connected to the bottom of the primary grinding cylinder 1, and a collecting mechanism 4 is provided at the bottom of the grinding cylinder 5. The collecting mechanism 4 is used to collect the kaolin powder after multi-stage grinding and pulverization for convenient subsequent storage and use.
[0033] The feeding mechanism 2 includes a feeding cylinder 201. The bottom of the feeding cylinder 201 is fixedly connected to the top of the primary crushing cylinder 1. Multiple support rods 202 are fixedly connected to the inner wall of the feeding cylinder 201. A support box 203 is fixedly connected to the right side of the support rods 202. The support box 203 provides an installation position and protection for the power assembly 204. The power assembly 204 is located at the bottom of the support box 203. The power assembly 204 includes a motor 2041. The top of the motor 2041 is fixedly connected to the bottom of the support box 203. A long column 2042 is fixedly connected to the output end of the motor 2041. A spiral blade 2043 is fixedly connected to the outer wall of the long column 2042. The spiral blade 2043 rotates under the drive of the long column 2042, pushing the kaolin downward to achieve stable feeding.
[0034] Specifically, the primary crushing cylinder 1 is the starting part of the entire grinding and crushing process, responsible for the preliminary treatment of kaolin. The top of the primary crushing cylinder 1 is equipped with a feeding mechanism 2. The main function of the feeding mechanism 2 is to control the flow rate and speed of kaolin entering the primary crushing cylinder 1, ensuring a stable and orderly feeding process and avoiding blockage or uneven feeding. The bottom of the primary crushing cylinder 1 is fixedly connected to a grinding cylinder 5, which receives the kaolin after primary crushing and further grinds it to obtain finer powder.
[0035] The feeding mechanism 2 includes a feeding cylinder 201, the bottom of which is fixedly connected to the top of the primary crushing cylinder 1. The feeding cylinder 201 provides a channel for kaolin to enter the primary crushing cylinder 1. Multiple support rods 202 are fixedly connected to the inner wall of the feeding cylinder 201. The support rods 202 serve to support and fix the internal components. A power assembly 204 is provided at the bottom of the support box 203. The power assembly 204 includes a motor 2041, which is the power source of the entire feeding mechanism 2 and provides power for the feeding of kaolin. The top of the motor 2041 is fixedly connected to the bottom of the support box 203 to ensure that the motor 2041 is installed firmly. A long column 2042 is fixedly connected to the output end of the motor 2041, and the motor 2041 drives the long column 2042 to rotate.
[0036] Please see the appendix Figure 3 - Appendix Figure 4 The crushing mechanism 3 includes multiple rollers 301. The outer wall of the rollers 301 is slidably connected to the inner wall of the primary crushing cylinder 1. A roller shaft 302 is fixedly connected to the right side of the rollers 301. A driven component 303 is provided at the top of the roller shaft 302. The driven component 303 rotates under the drive of the driving component 304, thereby driving the rollers 301 to rotate. The driving component 304 is provided on the outer wall of the driven component 303. A fine grinding mechanism 305 is provided at the bottom of the driving component 304. The fine grinding mechanism 305 performs finer grinding on the kaolin that has been initially crushed, thereby improving the fineness of the powder.
[0037] Specifically, the crushing mechanism 3 includes multiple rollers 301. The outer wall of the rollers 301 is slidably connected to the inner wall of the primary crushing cylinder 1. The rollers 301 squeeze and crush the kaolin by rotating, thus achieving preliminary crushing. A roller shaft 302 is fixedly connected to the right side of the rollers 301. The roller shaft 302 provides support and rotation axis for the rollers 301. An active component 304 is provided on the outer wall of the driven component 303. The active component 304 provides power to the driven component 303, enabling the entire crushing mechanism 3 to operate normally.
[0038] Please see the appendix Figure 3 - Appendix Figure 4The driven component 303 includes a short column 3031, the bottom of which is fixedly connected to the top of the roller 302. A driven gear 3032 is fixedly connected to the outer wall of the short column 3031. The driving component 304 includes a driving gear 3041, the outer wall of which meshes with the outer wall of the driven gear 3032. The driving gear 3041 drives the driven gear 3032 to rotate by rotation. A driving shaft 3042 is fixedly connected to the inner wall of the driving gear 3041. The fine grinding mechanism 305 includes a connecting column 3051, the top of which is fixedly connected to the bottom of the driving shaft 3042. A connecting rod 3052 is fixedly connected to the bottom of the connecting column 3051. The connecting rod 3052 provides an installation position for the grinding ball 3053. The grinding ball 3053 is rotatably connected to the outer wall of the connecting rod 3052.
[0039] Specifically, the driven component 303 includes a short column 3031, the bottom of which is fixedly connected to the top of the roller 302. The short column 3031 serves to connect and transmit power. A driven gear 3032 is fixedly connected to the outer wall of the short column 3031. The driven gear 3032 meshes with the driving gear 3041 and rotates under the drive of the driving gear 3041. A driving shaft 3042 is fixedly connected to the inner wall of the driving gear 3041, providing rotational support and power transmission for the driving gear 3041. The fine grinding mechanism 305 includes a connecting column 3051, the top of which is fixedly connected to the bottom of the driving shaft 3042. The connecting column 3051 transmits the power of the driving shaft 3042 to the connecting rod 3052. A grinding ball 3053 is rotatably connected to the outer wall of the connecting rod 3052. The grinding ball 3053 rotates under the drive of the connecting rod 3052, performing fine grinding of the kaolin.
[0040] Please see the appendix Figure 4 - Appendix Figure 5 The collection mechanism 4 includes a collection box 401, the top of which is fixedly connected to the bottom of the grinding cylinder 5. A grinding plate 402 is provided on the top of the collection box 401. A lifting component 403 is provided on the top of the collection box 401. The function of the lifting component 403 is to facilitate the tilting and support of the grinding plate 402. The lifting component 403 includes a telescopic column 4033, the bottom of which is fixedly connected to the top of the collection box 401. A receiving plate 4032 is fixedly connected to the inner wall of the collection box 401. An insert plate 4031 is slidably connected to the inner wall of the receiving plate 4032. The insert plate 4031 can be removed when the grinding plate 402 is lifted.
[0041] Specifically, the collection mechanism 4 includes a collection box 401, which is one of the core components of the entire collection mechanism 4. Its main function is to receive and collect kaolin powder after it has been ground by the grinding cylinder 5. The lifting assembly 403 includes a telescopic column 4033, the bottom of which is fixedly connected to the top of the collection box 401. The telescopic column 4033 achieves the lifting function by telescopic movement. The inner wall of the collection box 401 is fixedly connected to a receiving plate 4032, which provides a sliding track for the insertion plate 4031.
[0042] Working principle: By turning on the motor 2041, the long column 2042 drives the spiral blade 2043 to rotate, which allows the feeding amount to be controlled. Then, it is transported to the primary crushing cylinder 1 for preliminary crushing, and then enters the grinding cylinder 5 for fine grinding. After that, it enters the collection mechanism 4. By extending the left end of the telescopic column 4033, the insert plate 4031 slides out of the receiving plate 4032, and shortening the right end, the ground kaolin is collected. This achieves the function of multi-stage crushing and collection of kaolin, which enhances its practicality. Moreover, the use of conical connections between each unit reduces dead corners and makes the connection smoother.
[0043] The support box 203 drives the long column 2042 and the drive shaft 3042 to rotate, which causes the drive gear 3041 to drive multiple driven gears 3032 to rotate, so that the kaolin that falls from the spiral of the feed cylinder 201 is initially rolled. Then, the initially rolled kaolin is repeatedly ground by the grinding balls 3053 to achieve a thorough grinding effect and enhance efficiency.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-stage grinding and pulverizing device for kaolin, comprising a primary grinding cylinder (1), characterized in that: The primary crushing cylinder (1) is provided with a feeding mechanism (2) at the top and a crushing mechanism (3) on the inner wall of the primary crushing cylinder (1). The crushing mechanism (3) is used for preliminary crushing. A grinding cylinder (5) is fixedly connected to the bottom of the primary crushing cylinder (1). A collecting mechanism (4) is provided at the bottom of the grinding cylinder (5). The feeding mechanism (2) includes a feeding cylinder (201). The bottom of the feeding cylinder (201) is fixedly connected to the top of the primary crushing cylinder (1). A plurality of support rods (202) are fixedly connected to the inner wall of the feeding cylinder (201). A support box (203) is fixedly connected to the right side of the support rod (202). A power assembly (204) is provided at the bottom of the support box (203).
2. The kaolin stepped multi-stage grinding and pulverizing device according to claim 1, characterized in that: The crushing mechanism (3) includes multiple rollers (301), the outer wall of the rollers (301) is slidably connected to the inner wall of the primary crushing cylinder (1), a roller shaft (302) is fixedly connected to the right side of the rollers (301), a driven component (303) is provided at the top of the roller shaft (302), an active component (304) is provided on the outer wall of the driven component (303), and a fine grinding mechanism (305) is provided at the bottom of the active component (304).
3. The kaolin stepped multi-stage grinding and pulverizing device according to claim 1, characterized in that: The power assembly (204) includes a motor (2041), the top of which is fixedly connected to the bottom of the support box (203), and a long column (2042) is fixedly connected to the output end of the motor (2041). A spiral blade (2043) is fixedly connected to the outer wall of the long column (2042).
4. The kaolin stepped multi-stage grinding and pulverizing device according to claim 2, characterized in that: The driven assembly (303) includes a short column (3031), the bottom of which is fixedly connected to the top of the roller (302), and a driven gear (3032) is fixedly connected to the outer wall of the short column (3031).
5. The kaolin stepped multi-stage grinding and pulverizing device according to claim 2, characterized in that: The active component (304) includes an active gear (3041), the outer wall of which meshes with the outer wall of the driven gear (3032), and the inner wall of the active gear (3041) is fixedly connected to an active shaft (3042).
6. The kaolin stepped multi-stage grinding and pulverizing device according to claim 2, characterized in that: The fine grinding mechanism (305) includes a connecting column (3051), the top of which is fixedly connected to the bottom of the drive shaft (3042), and a connecting rod (3052) is fixedly connected to the bottom of the connecting column (3051). A grinding ball (3053) is rotatably connected to the outer wall of the connecting rod (3052).
7. The kaolin stepped multi-stage grinding and pulverizing device according to claim 1, characterized in that: The collecting mechanism (4) includes a collecting box (401), the top of which is fixedly connected to the bottom of the grinding cylinder (5), a grinding plate (402) is provided on the top of the collecting box (401), and a lifting assembly (403) is provided on the top of the collecting box (401).
8. The kaolin stepped multi-stage grinding and pulverizing device according to claim 7, characterized in that: The lifting assembly (403) includes a telescopic column (4033), the bottom of which is fixedly connected to the top of the collection box (401), and a receiving plate (4032) is fixedly connected to the inner wall of the collection box (401). An insert plate (4031) is slidably connected to the inner wall of the receiving plate (4032).