Wet stirring mill

By introducing a grinding drum and a movable scraper structure into the wet stirred mill, the problem of raw material residue at the bottom of the tank is solved, achieving more efficient raw material mixing and discharge, and improving grinding efficiency.

CN224208079UActive Publication Date: 2026-05-08XIANNING XINSHENG ENVIRONMENTAL PROTECTION MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANNING XINSHENG ENVIRONMENTAL PROTECTION MACHINERY MANUFACTURING CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing wet stirred mills, raw materials tend to remain at the bottom of the grinding jar during the mixing process, leading to reduced grinding efficiency.

Method used

A wet stirred mill was designed, which sets up a grinding drum and a movable scraper structure in the grinding disc. The grinding drum rotates around the rotating rod to re-stir the raw material at the bottom of the tank, and the scraper scrapes the raw material at the bottom of the tank into the discharge valve. The stirring rod and scraper are combined to clean the residual raw material on the inner wall of the tank.

Benefits of technology

It improves the uniformity and efficiency of raw material mixing, ensures that the raw materials at the bottom of the tank are completely discharged to avoid residue, and improves the grinding effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of stirring and grinding, and particularly relates to a wet stirring mill which comprises a base, a grinding tank is fixedly connected to the top of the base, a motor is fixedly connected to the top of the grinding tank, a grinding disc is fixedly connected to the output end of the motor, a grinding hopper is fixedly connected to the inner side of the grinding tank, a rotating rod is fixedly connected to the bottom of the grinding disc, and the grinding tank is rotationally connected with the rotating rod. The surface of the rotating rod is fixedly connected with a first connecting block, and the surface of the first connecting block is rotationally connected with a grinding roller. By arranging the grinding disc to rotate in the grinding hopper, raw materials in the grinding hopper can be stirred and ground, meanwhile, the grinding roller at the bottom is driven to rotate, the raw materials at the bottom of the grinding tank can be stirred and ground again by rotating the grinding roller around the rotating rod and rotating the grinding roller, and the stirring uniformity of the raw materials is improved; and the raw material stirring and grinding efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of stirring and grinding, specifically a wet stirring mill. Background Technology

[0002] Stirred mills are highly efficient ultrafine pulverizers among powder preparation equipment. Over the years, various types of stirred mills have been developed around the world. Currently, wet stirred mills are the most widely used both domestically and internationally, and are mainly used in ceramics, building materials, papermaking coatings, and powder metallurgy.

[0003] However, when current grinding devices are mixing raw materials, the bottom of the grinding tank is set to be flat, which may cause raw materials to remain in the mixing tank. The grinding structure is not convenient for grinding and mixing the residual raw materials at the bottom of the tank, thus reducing the efficiency of grinding raw materials.

[0004] Therefore, a wet stirred mill is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a wet stirred mill.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A wet stirred mill of this utility model includes a base; a grinding tank is fixedly connected to the top of the base, a motor is fixedly connected to the top of the grinding tank, a grinding disc is fixedly connected to the output end of the motor, a grinding bucket is fixedly connected to the inner side of the grinding tank, a rotating rod is fixedly connected to the bottom of the grinding disc, the grinding tank is rotatably connected to the rotating rod, a first connecting block is fixedly connected to the surface of the rotating rod, a grinding roller is rotatably connected to the surface of the first connecting block, a feed pipe is connected to the top of the grinding tank, and a discharge valve is connected to the bottom of the grinding tank; this step, by setting the grinding disc to rotate inside the grinding bucket, can stir and grind the raw materials inside the grinding bucket, and at the same time drive the grinding roller at the bottom to rotate. By rotating the grinding roller around the rotating rod and rotating itself, the raw materials at the bottom of the grinding tank can be stirred and ground again, improving the uniformity of the raw material stirring and increasing the efficiency of the raw material stirring and grinding.

[0007] Preferably, the rotating rod has a groove inside and a sliding groove on its surface. An electric push rod is fixedly connected inside the groove, and a movable disk is fixedly connected to the bottom of the electric push rod. The movable disk is slidably connected to both the groove and the sliding groove. A second connecting block is fixedly connected to the side of the movable disk and is slidably connected to the rotating rod. A first scraper is fixedly connected to the side of the second connecting block, and the first scraper is inclined. In this step, the first scraper, which can move up and down, can scrape the raw material at the bottom of the grinding tank into the discharge valve, making it easier for the raw material at the bottom of the grinding tank to enter the discharge valve and be discharged. When the first scraper moves up, it can also stir the raw material inside without hindering the grinding drum from grinding and stirring the raw material.

[0008] Preferably, a stirring rod is fixedly connected to the surface of the rotating rod, and a second scraper is fixedly connected to the side of the first connecting block. The surface of the second scraper is in contact with the inner wall of the grinding tank. This step can increase the efficiency of stirring the raw materials by rotating the stirring rod, and the second scraper can scrape and clean the raw materials remaining on the inner wall of the grinding tank.

[0009] Preferably, the first scraper has an opening inside and a beveled opening at the bottom; this step reduces the resistance encountered when the first scraper rotates through the opening and reduces the friction encountered when the bottom of the first scraper contacts the grinding jar through the beveled opening at the bottom.

[0010] Preferably, a sealing gasket is provided on the top of the second connecting block, and the sealing gasket is slidably connected to the rotating rod; this step of the sealing gasket can protect the connection between the second connecting block and the rotating rod, preventing raw materials from entering the upper part of the moving disc through the gap and remaining inside the groove.

[0011] Preferably, the top of the grinding disc is provided with a guide groove, and the guide groove is located below the feed pipe; this step can prevent raw materials from remaining on the top of the grinding disc by setting the guide groove.

[0012] The advantages of this utility model are:

[0013] 1. The wet stirred mill of this utility model, by setting a grinding disc to rotate inside the grinding hopper, can stir and grind the raw materials inside the grinding hopper, and at the same time drive the grinding drum at the bottom to rotate. By rotating the grinding drum around the rotating rod and rotating itself, the raw materials at the bottom of the grinding tank can be stirred and ground again, which improves the uniformity of the raw material stirring and increases the efficiency of the raw material stirring and grinding.

[0014] 2. The wet mixing mill of this utility model uses a first scraper that can move up and down to scrape the raw material at the bottom of the grinding tank into the discharge valve, making it easier for the raw material at the bottom of the grinding tank to enter the discharge valve and be discharged. When the first scraper moves up, it can also stir the raw material inside, without hindering the grinding drum from grinding and stirring the raw material. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional sectional view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the grinding structure in this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the rotating rod in this utility model;

[0020] Figure 5 This is a schematic diagram of the bottom of the grinding structure in this utility model.

[0021] Legend: 1. Base; 12. Grinding jar; 13. Motor; 14. Grinding disc; 15. Grinding bucket; 16. Rotating rod; 17. First connecting block; 18. Grinding roller; 19. Feed pipe; 110. Discharge valve; 21. Groove; 22. Electric actuator; 23. Moving disc; 24. Second connecting block; 25. First scraper; 31. Stirring rod; 32. Second scraper; 41. Through port; 51. Sealing gasket; 61. Guide groove. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5As shown, a wet stirred mill includes a base 1; a grinding jar 12 is fixedly connected to the top of the base 1, a motor 13 is fixedly connected to the top of the grinding jar 12, a grinding disc 14 is fixedly connected to the output end of the motor 13, a grinding hopper 15 is fixedly connected to the inner side of the grinding jar 12, a rotating rod 16 is fixedly connected to the bottom of the grinding disc 14, the grinding jar 12 and the rotating rod 16 are rotatably connected, a first connecting block 17 is fixedly connected to the surface of the rotating rod 16, a grinding roller 18 is rotatably connected to the surface of the first connecting block 17, a feed pipe 19 is connected to the top of the grinding jar 12, and a discharge valve 110 is connected to the bottom of the grinding jar 12; during operation, raw materials are poured into the interior of the grinding jar 12 through the feed pipe 19, the raw materials enter the interior of the grinding hopper 15, and the grinding disc 14 is rotated by the motor 13, thus stirring and grinding the raw materials inside the grinding hopper 15 through the grinding disc 14. The ground raw materials move downwards through the grinding hopper 15 and fall to the bottom of the grinding jar 12. When the grinding disc 14 rotates, it drives the rotating rod 16 to rotate, which in turn drives the first connecting block 17 to rotate. The first connecting block 17 then drives the grinding roller 18 to rotate. As the grinding roller 18 rotates around the rotating rod 16, it also rotates itself, further grinding and compressing the raw materials at the bottom of the grinding jar 12. The raw materials inside the grinding jar 12 are discharged through the discharge valve 110. This step, by setting the grinding disc 14 to rotate inside the grinding hopper 15, can stir and grind the raw materials inside the grinding hopper 15, while simultaneously driving the grinding roller 18 at the bottom to rotate. By rotating around the rotating rod 16 and rotating itself, the grinding roller 18 can further stir and grind the raw materials at the bottom of the grinding jar 12, improving the uniformity of the raw material stirring and increasing the efficiency of the raw material stirring and grinding.

[0024] like Figures 3 to 5As shown, the rotating rod 16 has a groove 21 inside and a sliding groove on its surface. An electric push rod 22 is fixedly connected inside the groove 21. A movable disk 23 is fixedly connected to the bottom of the electric push rod 22. The movable disk 23 is slidably connected to both the groove 21 and the sliding groove. A second connecting block 24 is fixedly connected to the side of the movable disk 23 and is slidably connected to the rotating rod 16. A first scraper 25 is fixedly connected to the side of the second connecting block 24 and is inclined. During operation, when the raw material needs to be discharged from the discharge valve 110, the electric push rod 22 drives the movable disk 23 to move downwards, which in turn drives the second connecting block 24 to move downwards, which in turn drives the first scraper 25 to move downwards, so that the bottom surface of the first scraper 25 is in contact with the bottom of the grinding jar 12. When the rotating rod 16 rotates, it simultaneously drives the electric push rod. The electric actuator 22 rotates with the moving disk 23, which drives the second connecting block 24 to rotate the first scraper 25, stirring and scraping the raw material at the bottom of the grinding tank 12. The inclined setting of the first scraper 25 scrapes the raw material to the discharge valve 110, allowing the raw material to be discharged through the discharge valve 110. When it is necessary to stir and grind the raw material inside, the electric actuator 22 drives the first scraper 25 to move upward, so that the bottom of the first scraper 25 is separated from the bottom surface of the grinding tank 12. This step, through the first scraper 25 which can move up and down, can scrape the raw material at the bottom of the grinding tank 12 into the discharge valve 110, making it easier for the raw material at the bottom of the grinding tank 12 to enter the discharge valve 110 and be discharged. When the first scraper 25 moves upward, the first scraper 25 can also stir the raw material inside, without hindering the grinding drum 18 from grinding and stirring the raw material.

[0025] like Figures 2 to 5 As shown, a stirring rod 31 is fixedly connected to the surface of the rotating rod 16, and a second scraper 32 is fixedly connected to the side of the first connecting block 17. The surface of the second scraper 32 is in contact with the inner wall of the grinding jar 12. During operation, the rotating rod 16 rotates while driving the stirring rod 31 to rotate. The stirring rod 31 drives the second scraper 32 to rotate. The stirring rod 31 stirs the raw materials inside the grinding jar 12, and the second scraper 32 scrapes the inner wall of the grinding jar 12. This step can increase the efficiency of stirring the raw materials by rotating the stirring rod 31, and can scrape and clean the raw materials remaining on the inner wall of the grinding jar 12 by the second scraper 32.

[0026] like Figure 4 As shown, the first scraper 25 has an opening 41 inside and a beveled opening at the bottom. This step can reduce the resistance encountered when the first scraper 25 rotates through the opening 41, and reduce the friction encountered when the bottom of the first scraper 25 contacts the grinding jar 12 through the beveled opening at the bottom.

[0027] like Figure 3 and Figure 4As shown, a sealing gasket 51 is provided on the top of the second connecting block 24, and the sealing gasket 51 is slidably connected to the rotating rod 16. During operation, when the second connecting block 24 moves, it drives the sealing gasket 51 to move. In this step, the sealing gasket 51 can protect the connection between the second connecting block 24 and the rotating rod 16, preventing raw materials from entering the upper part of the moving disc 23 through the gap and remaining inside the groove 21.

[0028] like Figure 3 As shown, a guide groove 61 is provided on the top of the grinding disc 14, and the guide groove 61 is located below the feed pipe 19. During operation, when the raw material falls onto the guide groove 61 through the feed pipe 19, the raw material on the surface of the guide groove 61 can fall off through its own inclined surface. This step can prevent the raw material from remaining on the top of the grinding disc 14 by setting the guide groove 61.

[0029] Working principle: Raw materials are poured into the grinding tank 12 through the feed pipe 19. The raw materials enter the grinding hopper 15. The motor 13 drives the grinding disc 14 to rotate, which stirs and grinds the raw materials inside the grinding hopper 15. The ground materials move downward through the grinding hopper 15 and fall to the bottom of the grinding tank 12. When the grinding disc 14 rotates, it drives the rotating rod 16 to rotate, which in turn drives the first connecting block 17 to rotate. The first connecting block 17 drives the grinding roller 18 to rotate. The grinding roller 18 rotates around the rotating rod 16 and also rotates itself, further grinding and compressing the raw materials at the bottom of the grinding tank 12. The raw materials inside the grinding tank 12 are discharged through the discharge valve 110. At the same time, the rotating rod 16 drives the stirring rod 31 to rotate, which in turn drives the second scraper 32 to rotate, further grinding and compressing the raw materials inside the grinding tank 12. Stirring is performed by scraping the inner wall of the grinding tank 12 with the second scraper 32. When the raw material needs to be discharged from the discharge valve 110, the electric push rod 22 drives the moving disk 23 to move down, the moving disk 23 drives the second connecting block 24 to move down, and the second connecting block 24 drives the first scraper 25 to move down, so that the bottom surface of the first scraper 25 is in contact with the bottom of the grinding tank 12. When the rotating rod 16 rotates, it drives the electric push rod 22 and the moving disk 23 to rotate at the same time. The moving disk 23 drives the second connecting block 24 to rotate the first scraper 25, stirring and scraping the raw material at the bottom of the grinding tank 12. Due to the tilting setting of the first scraper 25, the raw material is scraped to the discharge valve 110 and discharged through the discharge valve 110. When the internal raw material needs to be stirred and ground, the electric push rod 22 drives the first scraper 25 to move up, so that the bottom of the first scraper 25 is separated from the bottom surface of the grinding tank 12.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wet stirred mill, comprising a base (1); characterized in that: A grinding jar (12) is fixedly connected to the top of the base (1), a motor (13) is fixedly connected to the top of the grinding jar (12), a grinding disc (14) is fixedly connected to the output end of the motor (13), a grinding bucket (15) is fixedly connected to the inner side of the grinding jar (12), a rotating rod (16) is fixedly connected to the bottom of the grinding disc (14), the grinding jar (12) and the rotating rod (16) are rotatably connected, a first connecting block (17) is fixedly connected to the surface of the rotating rod (16), a grinding roller (18) is rotatably connected to the surface of the first connecting block (17), a feed pipe (19) is connected to the top of the grinding jar (12), and a discharge valve (110) is connected to the bottom of the grinding jar (12).

2. A wet stirred mill according to claim 1, characterized in that: The rotating rod (16) has a groove (21) inside and a sliding groove on its surface. An electric push rod (22) is fixedly connected inside the groove (21). A movable disk (23) is fixedly connected to the bottom of the electric push rod (22). The movable disk (23) is slidably connected to both the groove (21) and the sliding groove. A second connecting block (24) is fixedly connected to the side of the movable disk (23). The second connecting block (24) is slidably connected to the rotating rod (16). A first scraper (25) is fixedly connected to the side of the second connecting block (24), and the first scraper (25) is inclined.

3. A wet stirred mill according to claim 2, characterized in that: A stirring rod (31) is fixedly connected to the surface of the rotating rod (16), and a second scraper (32) is fixedly connected to the side of the first connecting block (17). The surface of the second scraper (32) is in contact with the inner wall of the grinding jar (12).

4. A wet stirred mill according to claim 3, characterized in that: The first scraper (25) has an opening (41) inside and a beveled opening at the bottom.

5. A wet stirred mill according to claim 4, characterized in that: The top of the second connecting block (24) is provided with a sealing gasket (51), which is slidably connected to the rotating rod (16).

6. A wet stirred mill according to claim 5, characterized in that: The grinding disc (14) has a guide groove (61) on its top, and the guide groove (61) is located below the feed pipe (19).