Ball milling equipment with material circulation structure

Abstract

The utility model provides a ball milling device with a material circulation structure, which comprises a support bearing component, an outer-layer containing component, a material discharging component, an inner-layer screening and filtering component, a grinding driving component and a circulation backflow component, and is characterized in that the inner-layer screening and filtering component is arranged in the outer-layer containing component; the inner-layer screening and filtering assembly not only can provide a grinding space for materials and grinding materials, but also can conduct immediate screening, qualified materials can directly enter the outer-layer containing assembly through the screening and filtering bottom plate, and unqualified materials continue to be left on the inner layer to be ground. The outer-layer containing assembly and the inner-layer screening and filtering assembly are communicated through the arranged circulating backflow assembly, materials which do not meet the granularity requirement can be introduced into the inner-layer screening and filtering assembly again to be further ground and screened and filtered, and therefore the overall grinding efficiency and the product quality are improved, continuous production can be achieved through continuous material circulating and screening, and the production cost is reduced. The production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a ball milling device, in particular to a ball milling device with a material circulation structure. Background Art

[0002] Patent document CN209049473U discloses a ball mill, which includes a main body, a motor group arranged above the main body, and a stirring barrel arranged inside the main body. A main shaft connected to the motor group is arranged inside the stirring barrel. A discharge flange is arranged below the stirring barrel. Stirring rods are arranged on the side of the main shaft, and stirring wheels are arranged at the ends of the stirring rods. This ball mill can improve the uniformity of ball milling of upper and lower layer materials, improve the uniformity of the particle size of the materials after ball milling, and can be directly improved on the basis of the existing vertical ball mill, making it have the advantages of a horizontal ball mill while maintaining the advantages of the vertical ball mill. However, after the ball milling is completed, there is still a certain amount of large particle size materials left, which affects the product quality. Screening equipment needs to be used for screening or secondary grinding treatment, and it is difficult to improve the production efficiency. Therefore, it is necessary to optimize its structure to overcome the above defects. Content of the Utility Model

[0003] The purpose of the utility model is to provide a ball milling device with a material circulation structure to improve the product quality.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A ball milling device with a material circulation structure includes:

[0006] A support and bearing assembly with an installation space therein;

[0007] An outer layer accommodating assembly installed in the support and bearing assembly, having an accommodating space for storing materials inside;

[0008] A material discharge assembly installed in the outer layer accommodating assembly, through which the materials in the outer layer accommodating assembly can be discharged;

[0009] An inner layer screening and filtering assembly installed in the outer layer accommodating assembly and communicating with the outer layer accommodating assembly, having an accommodating space for storing materials and abrasives inside. After being screened by the inner layer screening and filtering assembly, the milled materials enter the outer layer accommodating assembly;

[0010] A grinding drive assembly installed in the support and bearing assembly and cooperating with the inner layer screening and filtering assembly. The grinding drive assembly drives the materials and abrasives in the inner layer screening and filtering assembly to move, so that the materials are ground;

[0011] Circulating reflux assembly, which is installed in the support and bearing assembly and communicated with the material discharge assembly and the inner sieve filtering assembly. The circulating reflux assembly sends the material discharged by the material discharge assembly into the inner sieve filtering assembly for re-grinding.

[0012] Specifically, the support and bearing assembly includes:

[0013] Support bottom plate, which is made of a cast plate body and arranged horizontally;

[0014] Bearing vertical frame, which is formed by enclosing plate parts, installed on the top of the support bottom plate and extending upward above the support bottom plate.

[0015] The outer accommodation assembly includes:

[0016] Outer cylinder shell, which is cylindrical and formed by curling plate parts, and its outer wall is fixed to the inner wall of the bearing vertical frame through a connecting piece;

[0017] Accommodation hopper, which is inverted conical, formed by curling plate parts, and joined to the bottom of the outer cylinder shell.

[0018] The material discharge assembly includes:

[0019] Discharge valve, which is installed at the bottom of the accommodation hopper and communicated with the inside of the accommodation hopper, and the material in the accommodation hopper can be discharged through the discharge valve.

[0020] The inner sieve filtering assembly includes:

[0021] Inner cylinder shell, which is cylindrical and formed by curling plate parts, its outer wall fits with the inner wall of the outer cylinder shell, and its top exposes above the outer cylinder shell;

[0022] Sieve filtering bottom plate, which is located above the accommodation hopper and joined to the bottom of the inner cylinder shell, and filter holes are provided inside it. The material in the inner cylinder shell can pass through the filter holes and enter the accommodation hopper.

[0023] The grinding drive assembly includes:

[0024] Drive motor, which is installed on the top of the bearing vertical frame and located above the inner cylinder shell, and its power output shaft extends downward;

[0025] Grinding core rod, which is located between the drive motor and the inner cylinder shell, its top is joined to the power output shaft of the drive motor, and its bottom extends into the inner cylinder shell. The drive motor drives the grinding core rod to rotate;

[0026] The grinding stirring rod is located in the inner cylinder shell and is installed at the bottom of the grinding core rod. It can rotate together with the grinding core rod. The grinding stirring rod stirs the materials and abrasives in the inner cylinder shell, so that the materials can be ground.

[0027] The circulation and reflux assembly includes:

[0028] A circulation pump is installed on the supporting bottom plate. Its inlet is connected to the discharge valve through a pipeline, and its outlet is connected to the inner cylinder shell through a pipeline. The circulation pump transports the materials discharged from the discharge valve to the inner cylinder shell for re-grinding.

[0029] The advantages of the present utility model are as follows:

[0030] This ball milling equipment installs the inner screening component in the outer accommodating component, so that the inner screening component not only provides a grinding space for the materials and abrasives, but also can perform immediate screening. Qualified materials can directly enter the outer accommodating component through the screening bottom plate, while unqualified materials continue to be ground in the inner layer. The set circulation and reflux assembly connects the outer accommodating component and the inner screening component, and can re-introduce the materials that do not meet the particle size requirements into the inner screening component for further grinding and screening, thereby improving the overall grinding efficiency and product quality. Through continuous material circulation and screening, continuous production can be achieved, and the production efficiency can be improved. Description of the Drawings

[0031] Figure 1 is one of the structural schematic diagrams of the ball milling equipment with a material circulation structure proposed by the present utility model;

[0032] Figure 2 is the second structural schematic diagram of this ball milling equipment. Detailed Embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Such as Figure 1 、 Figure 2As shown in the figure, the ball milling equipment with a material circulation structure proposed by the present utility model includes a support and bearing assembly, an outer layer accommodating assembly, a material discharge assembly, an inner layer screening and filtering assembly, a grinding drive assembly, and a circulation and reflux assembly. There is an installation space in the support and bearing assembly. The outer layer accommodating assembly is installed in the support and bearing assembly, and has an accommodating space for storing materials inside. The material discharge assembly is installed in the outer layer accommodating assembly, and the materials in the outer layer accommodating assembly can be discharged through the material discharge assembly. The inner layer screening and filtering assembly is installed in the outer layer accommodating assembly and is communicated with the outer layer accommodating assembly. It has an accommodating space for storing materials and abrasives inside. The ground materials enter the outer layer accommodating assembly after being screened by the inner layer screening and filtering assembly. The grinding drive assembly is installed in the support and bearing assembly and cooperates with the inner layer screening and filtering assembly to drive the materials and abrasives in the inner layer screening and filtering assembly to move, so that the materials are ground. The circulation and reflux assembly is installed in the support and bearing assembly and is communicated with the material discharge assembly and the inner layer screening and filtering assembly. The materials discharged by the material discharge assembly are sent into the inner layer screening and filtering assembly by the circulation and reflux assembly for re-grinding.

[0035] In this embodiment, the support and bearing assembly includes a support bottom plate 110 and a bearing vertical frame 120. The support bottom plate is made of a cast plate body and is arranged horizontally. The bearing vertical frame is formed by enclosing plate members. It is installed on the top of the support bottom plate and extends upward above the support bottom plate.

[0036] The outer layer accommodating assembly includes an outer layer cylinder shell 210 and an accommodating hopper 220. The outer layer cylinder shell is cylindrical and is formed by curling plate members. Its outer wall is fixed to the inner wall of the bearing vertical frame through a connecting member. The accommodating hopper is inverted conical and is formed by curling plate members and is joined to the bottom of the outer layer cylinder shell.

[0037] The material discharge assembly includes a discharge valve 300. The discharge valve is installed at the bottom of the accommodating hopper and is communicated with the inside of the accommodating hopper. The materials in the accommodating hopper can be discharged through the discharge valve.

[0038] The inner layer screening and filtering assembly includes an inner layer cylinder shell 410 and a screening and filtering bottom plate 420. The inner layer cylinder shell is cylindrical and is formed by curling plate members. Its outer wall fits against the inner wall of the outer layer cylinder shell, and its top protrudes above the outer layer cylinder shell. The screening and filtering bottom plate is located above the accommodating hopper and is joined to the bottom of the inner layer cylinder shell. It has filter holes opened inside. The materials in the inner layer cylinder shell can pass through the filter holes and enter the accommodating hopper.

[0039] The grinding drive assembly includes a drive motor 510, a grinding core rod 520, and a grinding stirring rod 530. The drive motor is installed on the top of the supporting vertical frame and is located above the inner cylinder shell. Its power output axis extends downward. The grinding core rod is located between the drive motor and the inner cylinder shell. Its top is engaged with the power output shaft of the drive motor, and its bottom extends into the inner cylinder shell. The drive motor drives the grinding core rod to rotate. The grinding stirring rod is located in the inner cylinder shell and is installed at the bottom of the grinding core rod. It is perpendicular to the grinding core rod and can rotate together with the grinding core rod. The grinding stirring rod agitates the materials and abrasives in the inner cylinder shell to grind the materials.

[0040] In this embodiment, the inner screen filtering assembly further includes a mask cover plate 430. There are a pair of mask cover plates. Each mask cover plate is semi-circular and is respectively placed on the top of the inner cylinder shell. After they are joined together, they mask the opening at the top of the inner cylinder shell. Avoidance notches are respectively formed in the inner edges of the mask cover plates, and the bottom of the grinding core rod extends into the inner cylinder shell through the avoidance notches.

[0041] In this embodiment, a limiting flange 411 is provided at the top of the inner cylinder shell. The limiting flange extends along the circumferential direction of the inner cylinder shell and is folded inward to the outside of the inner cylinder shell. The outer edge of the mask cover plate abuts against the limiting flange, and the limiting flange limits it. Operation handles 431 are respectively provided at the tops of the mask cover plates, and the mask cover plates can be taken and placed through the operation handles.

[0042] The circulating reflux assembly includes a circulating pump 600. The circulating pump is installed on the supporting bottom plate. Its inlet is communicated with the discharge valve through an inlet pipeline, and its outlet is communicated with the inner cylinder shell through a discharge pipeline. The circulating pump transports the materials discharged by the discharge valve to the inner cylinder shell for re-grinding.

[0043] In this embodiment, an avoidance through-hole 121 is formed in the supporting vertical frame, and a feeding through-hole 432 is formed in the mask cover plate. The discharge pipeline of the circulating pump can penetrate through the avoidance through-hole and then extend into the inner cylinder shell through the feeding through-hole.

[0044] In the description of the present utility model, it should be noted that when terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", etc. appear, they should be understood as based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", etc. appear, they are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A ball milling device with a material circulation structure, characterized in that, Comprising: A support and bearing assembly having an installation space therein; An outer layer accommodating assembly installed in the support and bearing assembly, with an accommodating space for storing materials therein; A material discharge assembly installed in the outer layer accommodating assembly, through which the materials in the outer layer accommodating assembly can be discharged; An inner layer screening assembly installed in the outer layer accommodating assembly and communicating with the outer layer accommodating assembly, having an accommodating space for storing materials and abrasives therein, and the ground materials enter the outer layer accommodating assembly after being screened by the inner layer screening assembly; A grinding drive assembly installed in the support and bearing assembly and cooperating with the inner layer screening assembly, driving the materials and abrasives in the inner layer screening assembly to move by the grinding drive assembly so that the materials are ground; A circulating and refluxing assembly installed in the support and bearing assembly and communicating with the material discharge assembly and the inner layer screening assembly, sending the materials discharged by the material discharge assembly into the inner layer screening assembly by the circulating and refluxing assembly for re-grinding.

2. The ball milling equipment with a material circulation structure according to claim 1, characterized in that, The support and bearing assembly includes: A support bottom plate made of a cast plate body and arranged horizontally; A bearing vertical frame formed by enclosing plate members, installed on the top of the support bottom plate and extending upward above the support bottom plate.

3. The ball milling equipment with a material circulation structure according to claim 2, characterized in that The outer layer accommodating assembly includes: An outer layer cylinder shell which is cylindrical and formed by curling plate members, and its outer wall is fixed to the inner wall of the bearing vertical frame through a connecting member; An accommodating conical hopper which is inverted conical, formed by curling plate members, and joined to the bottom of the outer layer cylinder shell.

4. A ball milling device with a material circulation structure according to claim 3, characterized in that, The material discharge assembly includes: A discharge valve installed at the bottom of the accommodating conical hopper and communicating with the inside of the accommodating conical hopper, through which the materials in the accommodating conical hopper can be discharged.

5. A ball milling device with a material circulation structure according to claim 4, characterized in that, The inner layer screening assembly includes: An inner layer cylinder shell which is cylindrical and formed by curling plate members, its outer wall fits against the inner wall of the outer layer cylinder shell, and its top protrudes above the outer layer cylinder shell; A screening bottom plate located above the accommodating conical hopper and joined to the bottom of the inner layer cylinder shell, with filter holes formed inside, and the materials in the inner layer cylinder shell can pass through the filter holes into the accommodating conical hopper.

6. A ball milling device with a material circulation structure according to claim 5, characterized in that, The grinding drive assembly includes: A drive motor installed on the top of the bearing vertical frame and located above the inner layer cylinder shell, with its power output shaft extending downward; A grinding core rod located between the drive motor and the inner layer cylinder shell, its top joined to the power output shaft of the drive motor, and its bottom extending into the inner layer cylinder shell, and the drive motor drives the grinding core rod to rotate; A grinding stirring rod located in the inner layer cylinder shell and installed at the bottom of the grinding core rod, which can rotate together with the grinding core rod.

7. The ball milling equipment with a material circulation structure according to claim 6, characterized in that, The circulating and refluxing assembly includes: A circulating pump installed on the support bottom plate, its inlet is connected to the discharge valve through a pipeline, and its outlet is connected to the inner layer cylinder shell through a pipeline.

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