CN219024500U

CN219024500U - Multi-shaft stirring mill

Info

Publication number: CN219024500U
Application number: CN202223297558.XU
Authority: CN
Inventors: 何亚民; 魏勇; 丁亚卓; 徐智平
Original assignee: Chengdu Leejun Industrial Co Ltd
Current assignee: Chengdu Leejun Industrial Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-16
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a multi-shaft stirring mill, which relates to the technical field of stirring mills and comprises a plurality of stirrers, wherein each stirrer comprises a stirring shaft axially arranged along a mill shell, a plurality of stirring parts capable of driving materials and grinding media to do rotary motion are arranged on each stirring shaft, and each stirring part extends radially from the stirring shaft; the stirring parts on the adjacent stirring shafts are arranged in a staggered way. According to the multi-shaft stirring mill provided by the utility model, through adopting a multi-shaft stirring structure, the activity degree of grinding media in the mill shell can be improved, and the grinding efficiency is increased; the throughput of the material in unit volume can be effectively improved, and the yield is further improved; the multi-shaft structure can reduce abrasion and reduce the frequency of shutdown replacement or maintenance compared with the single-shaft structure; the rotation direction of each stirrer can be adjusted according to the process requirement, and the device can be more suitable for diversified production.

Description

Multi-shaft stirring mill

Technical Field

The utility model relates to the technical field of stirring mills, in particular to a multi-shaft stirring mill.

Background

Most of the existing stirring mills are of single-shaft structures, single acting force can be generated, the grinding efficiency is low, the throughput of unit area is limited, and the load of the stirrer is large and easy to wear, so that the current production requirements cannot be met.

Disclosure of Invention

The utility model aims at: in view of the above problems, the present utility model provides a multi-shaft stirring mill, which can improve the activity of grinding media in a mill shell and increase the grinding efficiency by adopting a multi-shaft stirring structure; the throughput of the material in unit volume can be effectively improved, and the yield is further improved; the multi-shaft structure can reduce abrasion and reduce the frequency of shutdown replacement or maintenance compared with the single-shaft structure; the rotation direction of each stirrer can be adjusted according to the process requirement, and the device can be more suitable for diversified production.

The technical scheme adopted by the utility model is as follows:

the utility model provides a multiaxis stirring mill, includes mill casing, the both ends of mill casing along the axis direction are feed end and discharge end respectively, the feed end is equipped with the feed inlet that supplies the material to get into in the mill casing, the discharge end is equipped with the discharge gate that supplies the material after grinding to leave the mill casing, the mill casing intussuseption is filled with grinding medium, discharge gate department is equipped with the separator that matches with the discharge gate, be equipped with the separation hole on the separator, the aperture of separation hole is less than the minimum diameter of grinding medium, still include a plurality of agitators, the agitator includes along mill casing axial arrangement's (mixing) shaft, be equipped with a plurality of stirring portions that can drive material and grinding medium and do gyration on the (mixing) shaft, stirring portion radially extends from the stirring shaft; the stirring parts on the adjacent stirring shafts are arranged in a staggered way.

Due to the adoption of the technical scheme, the activity degree of grinding media in the grinder shell can be improved and the grinding efficiency can be increased by adopting a multi-shaft stirring structure; the throughput of the material in unit volume can be effectively improved, and the yield is further improved; the multi-shaft structure can reduce abrasion and reduce the frequency of shutdown replacement or maintenance compared with the single-shaft structure; the rotation direction of each stirrer can be adjusted according to the process requirement, and the device can be more suitable for diversified production.

Further, the rotation directions of the plurality of stirring shafts are the same.

Due to the adoption of the technical scheme, the stirring shafts rotate in the same direction, so that the impact of grinding media on materials can be reduced, the working mode in the grinding machine shell is mainly grinding, and the grinding machine is suitable for grinding materials with smaller particles.

Further, the rotation directions of the adjacent stirring shafts are opposite.

Due to the adoption of the technical scheme, the impact of grinding media on materials can be reduced by the opposite rotation directions of the adjacent stirring shafts, so that the working mode in the grinding machine shell is mainly impact, and the grinding machine is suitable for grinding materials with larger particles.

Further, the shape of the mill shell is matched with the acting force area formed by a plurality of stirrers, and the mill shell is of a shell structure formed by overlapping a plurality of cylindrical edges.

Due to the adoption of the technical scheme, the mill shell and the stirrer are good in fit, and grinding and dead material area reduction are facilitated.

Further, the cross section of the mill shell is of a waist-shaped hole structure.

Due to the adoption of the technical scheme, the mill shell is simple and convenient to manufacture, and the production cost can be effectively reduced.

Further, a transmission structure is arranged among the stirring shafts, and the driving device can act on the transmission structure and enable the stirring shafts to rotate simultaneously.

Further, the stirring part is of a disc type structure or a spiral type structure.

Further, the extended end of the stirring portion is provided with a reinforcing stirring member in the axial direction.

Due to the adoption of the technical scheme, the reinforced stirring part can effectively eliminate the dead material area in the grinder shell.

Further, the gap between the stirring part and the stirring part is more than or equal to 3 times of the maximum diameter of the grinding medium.

Due to the adoption of the technical scheme, smooth material flow is ensured, and the material clamping condition is avoided.

Further, the number of the stirrers is two, and the two stirrers are arranged in the grinder shell side by side along the horizontal direction.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the utility model adopts a multi-shaft stirring structure, can improve the activity degree of grinding media in the grinder shell and increase the grinding efficiency.

2. The utility model adopts a multi-shaft stirring structure, which can effectively improve the throughput of the unit volume of materials and further improve the yield.

3. The utility model can adjust the rotation direction of each stirrer according to the process requirement, and is more suitable for diversified production.

4. The utility model can effectively eliminate dead material areas.

5. The utility model can ensure smooth flow of the logistics.

Drawings

FIG. 1 is a cross-sectional view of a top view of a multi-shaft agitator mill of the present utility model;

FIG. 2 is a schematic view of a mill housing of the present utility model formed by overlapping a plurality of cylindrical edges;

FIG. 3 is a schematic view of the structure of a mill housing of the present utility model with a cross-section of a kidney-shaped aperture;

fig. 4 is a cross-sectional view of a front view of a multi-shaft agitator mill of the present utility model.

The marks in the figure: 1-mill shell, 101-feed inlet, 102-discharge outlet, 103-separator, 2-stirrer, 201-stirring shaft, 202-stirring part and 203-enhanced stirring part.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

1-2, including mill shell 1, mill shell 1 is along the both ends of axis direction respectively for feed end and discharge end, the feed end is equipped with the feed inlet 101 that can supply the material to get into mill shell 1 in, and is used for the air intake, the discharge end is equipped with the discharge gate 102 that can supply the material after grinding to leave mill shell 1, and locates the air outlet above the discharge gate, mill shell 1 intussuseption is filled with grinding medium, discharge gate 102 department is equipped with the separator 103 that matches with discharge gate 102, be equipped with the separating hole on the separator 103, the aperture of separating hole is less than grinding medium's minimum diameter, still include two agitators 2, two agitators 2 are set up in mill shell 1 side by side along the horizontal direction; the stirrer 2 comprises a stirring shaft 201 axially arranged along the mill shell 1, wherein the stirring shaft 201 is provided with a plurality of stirring parts 202 capable of driving materials and grinding media to do rotary motion, and the stirring parts 202 radially extend from the stirring shaft 201; the stirring portions 202 on adjacent stirring shafts 201 are staggered.

Specifically, by adopting a structure of double-shaft stirring, the activity degree of the grinding medium in the mill shell 1 can be improved, and the grinding efficiency can be increased; the throughput of the material in unit volume can be effectively improved, and the yield is further improved; the biaxial structure can reduce wear and tear compared with the uniaxial structure, and the frequency of shutdown replacement or maintenance is reduced.

The rotation directions of the adjacent stirring shafts 201 are opposite.

Specifically, the rotation directions of the adjacent stirring shafts 201 are opposite, so that the impact of grinding media on materials can be reduced, and the working mode in the mill shell 1 is mainly based on impact, and the grinding machine is suitable for grinding materials with larger particles.

The shape of the mill shell 1 is matched with the action force area formed by a plurality of stirrers 2, and the mill shell 1 is of a shell structure formed by overlapping a plurality of cylindrical edges.

Specifically, the mill housing 1 has good fit with the agitator 2, which is advantageous for grinding and reducing dead zones.

Each of the stirring shafts 201 is independently rotated by a driving means.

The stirring section 202 may have a disk type structure or a spiral type structure. In this embodiment, the stirring portion 202 disposed at the feeding end is in a spiral structure, and the remaining stirring portions 202 are in a disc structure, so that the stirring portion 202 with the spiral structure can rapidly push the material into the mill housing 1, thereby ensuring that continuous feeding can be realized.

The extending end of the stirring section 202 is provided with a reinforcing stirring section 202 member in the axial direction.

Specifically, the enhanced agitation portion 202 members may effectively eliminate dead space within the mill housing 1.

The gap between the stirring section 202 and the stirring section 202 is 3 times or more the maximum diameter of the grinding medium.

Specifically, the smooth material flow is ensured, and the material clamping condition is avoided.

Example 2

3-4, including mill shell 1, mill shell 1 is along the both ends of axis direction respectively for feed end and discharge end, the feed end is equipped with the feed inlet 101 that can supply the material to get into mill shell 1, in this embodiment, feed inlet 101 also can be used for the air inlet, the discharge end is equipped with the discharge gate 102 that can supply the material after grinding to leave mill shell 1 and locates the air outlet above the discharge gate, mill shell 1 intussusception is filled with grinding medium, the discharge gate 102 department is equipped with the separator 103 that matches with discharge gate 102, be equipped with the separating hole on the separator 103, the aperture of separating hole is less than grinding medium's minimum diameter, still include two agitators 2, two agitators 2 are set up in mill shell 1 side by side along the horizontal direction; the stirrer 2 comprises a stirring shaft 201 axially arranged along the mill shell 1, wherein the stirring shaft 201 is provided with a plurality of stirring parts 202 capable of driving materials and grinding media to do rotary motion, and the stirring parts 202 radially extend from the stirring shaft 201; the stirring portions 202 on adjacent stirring shafts 201 are staggered.

The rotation directions of the two stirring shafts 201 are the same.

Specifically, the two stirring shafts 201 rotate in the same direction, so that the impact of grinding media on materials can be reduced, the working mode in the mill shell 1 is mainly grinding, and the grinding machine is suitable for grinding materials with smaller particles.

The cross section of the mill shell 1 is of a waist-shaped hole structure.

Specifically, the mill shell 1 is simple and convenient to manufacture, and the production cost can be effectively reduced.

A transmission structure is arranged between the two stirring shafts 201, and a driving device can act on the transmission structure and enable the two stirring shafts 201 to rotate simultaneously. The transmission device includes, but is not limited to, a speed reducer, a gear, a belt, a sprocket and other structures, and the two stirring shafts 201 can synchronously rotate under the action of the transmission device or rotate in a differential speed according to the requirement, and the content of the transmission part belongs to the prior art and is not repeated herein.

The stirring section 202 may have a disk type structure or a spiral type structure. In this embodiment, the stirring portions 202 with spiral structures are disposed at the positions corresponding to the feeding end and the middle of the mill housing 1, and the stirring portions 202 at the rest positions are of a disk structure, so that the speed of passing materials can be increased and excessive grinding can be avoided in comparison with embodiment 1.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. The utility model provides a multiaxis stirring mill, includes mill casing, the mill casing is feed end and discharge end along the both ends of axis direction respectively, the feed end is equipped with the feed inlet that supplies the material to get into in the mill casing, the discharge end is equipped with the discharge gate that supplies the material after grinding to leave the mill casing, the mill casing intussuseption is filled with grinding medium, discharge gate department is equipped with the separator that matches with the discharge gate, be equipped with the separation hole on the separator, the aperture of separation hole is less than the minimum diameter of grinding medium, characterized by, still include a plurality of agitators, the agitator includes along mill casing axial arrangement's (mixing) shaft, be equipped with a plurality of stirring portions that can drive material and grinding medium and make gyration motion on the (mixing) shaft, stirring portion radially extends from the stirring shaft; the stirring parts on the adjacent stirring shafts are arranged in a staggered way.

2. A multi-shaft agitator mill as claimed in claim 1, wherein the rotation directions of a plurality of said agitator shafts are the same.

3. A multi-shaft agitator mill as claimed in claim 1, wherein the direction of rotation of adjacent agitator shafts is reversed.

4. A multi-axis agitator mill according to claim 1, wherein the mill housing is shaped to match the force zone created by the plurality of agitators, and wherein the mill housing is a housing structure created by overlapping the edges of the plurality of cylinders.

5. A multi-shaft stirred mill according to claim 1 wherein the mill housing is of a kidney-shaped aperture configuration in cross section.

6. A multi-shaft agitator mill as claimed in claim 1, wherein a transmission is provided between a plurality of said agitator shafts, and wherein the drive means is operable to act on the transmission and cause the plurality of agitator shafts to rotate simultaneously.

7. A multi-shaft agitator mill as claimed in claim 1, wherein the agitator is of disc or screw construction.

8. A multi-shaft stirring mill as claimed in claim 1 wherein the extended end of the stirring section is provided with a reinforcing stirring member in the axial direction.

9. A multi-shaft stirring mill according to claim 1 wherein the gap between the stirring section and the stirring section is 3 times or more the maximum diameter of the grinding medium.

10. A multi-shaft stirred mill according to any one of claims 1 to 9 wherein the number of agitators is two, the two agitators being arranged side by side in the mill housing in a horizontal direction.