A new type of ball mill

Abstract

This utility model provides a novel ball mill, including a frame, a cylinder body mounted on the frame, a screen on the outer side of the cylinder body, an outer shell on the outer side of the screen, a spiral feed connected to the cylinder body, a feed inlet connected to the spiral feed, and cylinder support plates, which are vertically arranged in a plurality of spaced intervals; an inner liner disposed on the inner side of the cylinder body, and a discharge hole provided on the inner liner; and a cylinder steel plate disposed on the outer side of the inner liner, and a discharge hole provided on the cylinder steel plate; the inner liner and the cylinder steel plate are segmented, and a return hole is provided at the joint of the ends. The advantages are that it not only achieves high-efficiency operation, but also adopts double-layer screening, increasing the utilization rate of the internal space of the shell.

Description

Technical Field

[0001] This utility model relates to the technical field of ball mills, and specifically to a novel ball mill. Background Technology

[0002] A ball mill is a mechanical device used for crushing materials. It crushes materials by impacting, rubbing, and compressing them with high-speed rotating balls. During operation, the ball mill requires screening; materials that meet the required diameter will pass through the screen. While current ball mills have discharge holes of a certain diameter, ensuring that the particles passing through these holes meet the requirements, this design is not very efficient. Utility Model Content

[0003] In view of this, the present invention provides a new type of ball mill that not only achieves high-efficiency operation, but also adopts double-layer screening to increase the utilization rate of the internal space of the shell.

[0004] To solve the above-mentioned technical problems, this utility model provides a novel ball mill, including a frame, a cylindrical body mounted on the frame, an outer shell disposed on the outer side of the cylindrical body, a spiral feed connected to the cylindrical body, and a feed inlet connected to the spiral feed. It also includes...

[0005] The cylindrical support plate is vertically arranged in a number and distributed at intervals.

[0006] The inner liner is provided on the inner side of the cylinder, and the inner liner is provided with a discharge hole;

[0007] A cylindrical steel plate is provided on the outer side of the inner lining, and a discharge hole is provided on the cylindrical steel plate;

[0008] The inner lining and the cylindrical steel plate are arranged in sections, and a return hole is provided at the joint between the two ends.

[0009] Furthermore, a stirring motor is installed on the frame, and the stirring motor is connected to the cylinder through a sprocket and a chain.

[0010] Furthermore, a spiral discharge mechanism is provided below the outer casing, and the spiral discharge mechanism is connected to a discharge motor.

[0011] Furthermore, the spiral feeder is connected to a feed motor.

[0012] Furthermore, the inner side of the cylinder support plate is provided with an end face liner, and the outer radial end face of the end face liner is in contact with the inner liner.

[0013] Furthermore, a return shovel plate is connected to the outer edge of the liner, and the return shovel plate is open.

[0014] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0015] 1. It not only achieves high-efficiency operation, but also adopts double-layer screening technology, which has obvious advantages over single-cylinder abrasive and screening.

[0016] 2. The space utilization rate inside the shell is increased by setting a screen on the outside of the cylinder, which also has the effect of returning material to the shell for re-grinding. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 for Figure 1 Axonometric drawing;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure after removing the outer shell and screen.

[0020] Figure 4 for Figure 3 Cross-sectional view along the radial direction of the cylinder;

[0021] In the diagram: 1. Frame; 2. Outer shell; 3. Feed inlet; 4. Spiral discharge; 5. Feed motor; 6. Agitator motor; 7. Discharge motor; 8. Cylinder support plate; 9. Cylinder steel plate; 10. Discharge hole; 11. End face liner; 12. Inner liner; 13. Return shovel plate; 14. Return hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-4 As shown: Example

[0024] A novel ball mill includes a frame 1, on which a cylinder is mounted. A screen is mounted on the outer side of the cylinder, and an outer shell 2 is mounted on the outer side of the screen. A spiral feeder is connected to the cylinder, and the spiral feeder is connected to a feed inlet 3. The mill also includes cylinder support plates 8, which are vertically arranged and distributed at intervals. A liner 12 is mounted on the inner side of the cylinder and has a discharge hole 10. A cylinder steel plate 9 is mounted on the outer side of the liner 12 and has a discharge hole 10. The liner 12 and the cylinder steel plate 9 are segmented, and a return hole 14 is provided at the joint between the ends.

[0025] In this embodiment, the cylinder is connected to a shaft, and the shaft is connected to a bearing seat. The bearing seat is fixed on the frame 1. A screen is provided on the outer side of the cylinder. The screen has discharge holes with the same designed aperture. The inner side of the screen is close to the return shovel plate 13, and both ends of the screen are connected to the cylinder support plate 8. The cylinder consists of an inner liner 12 and a cylinder steel plate 9. Discharge holes 10 are provided at corresponding positions on the inner liner 12 and the cylinder steel plate 9. The aperture of the discharge hole 10 is larger than the aperture of the screen. A return hole 14 is provided on the cylinder. When material with a larger aperture is discharged from the discharge hole 10, it cannot leak from the screen. Under the counterclockwise rotation of the cylinder, it enters the cylinder through the return hole 14 to continue grinding. Example

[0026] The frame 1 is equipped with a stirring motor 6, which is connected to the cylinder via a sprocket and a chain.

[0027] Unlike the above embodiments, in this embodiment, the stirring motor 6 is connected to the shaft on the cylinder via a chain and sprocket. Example

[0028] A spiral discharge 4 is provided below the outer shell 2, and the spiral discharge 4 is connected to a discharge motor 7.

[0029] Unlike the above embodiments, in this embodiment, the material is discharged using a spiral discharge mechanism 4, which ensures stable material discharge. Example

[0030] The spiral feeder is connected to a feed motor 5.

[0031] Unlike the above embodiments, in this embodiment, screw feeding is also used to achieve quantitative feeding. Example

[0032] The inner side of the cylinder support plate 8 is provided with an end face liner 11, and the outer radial end face of the end face liner 11 is in contact with the inner liner 12.

[0033] Unlike the above embodiments, in this embodiment, the lining 12 is made of polyurethane material, which can reach a temperature of 80 degrees Celsius. Example

[0034] The outer edge of the liner 12 is connected to a return shovel 13, which is open.

[0035] Unlike the above embodiments, in this embodiment, the return shovel 13 collects larger particles of material back into the cylinder for grinding.

[0036] The working method (or working principle) of this utility model:

[0037] In order to improve production efficiency and maximize the use of space inside the shell, a screen is installed between the cylinder and the shell during operation. The aperture of the screen is the required particle size of the material. When the material in the cylinder is discharged from the discharge hole 10, the material that meets the aperture size of the screen leaks out of the screen and enters the discharge screw. The material with a larger particle size cannot pass through the screen. Then, under the action of the cylinder rotation and gravity, the material with a larger particle size enters the cylinder through the return hole 14 and is ground again. This technology adopts double-layer screening, with the cylinder as the first screening and the screen as the second screening. Compared with single-cylinder grinding and screening, the working efficiency is greatly improved.

[0038] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A novel ball mill, comprising a frame (1), a cylinder mounted on the frame (1), a screen mounted on the outer side of the cylinder, a shell (2) mounted on the outer side of the screen, a spiral feed connected to the cylinder, and a feed inlet (3) connected to the spiral feed, characterized in that: It also includes, The cylindrical support plate (8) is vertically arranged, and there are several of them, which are distributed at intervals. The inner liner (12) is provided on the inner side of the cylinder, and the inner liner (12) is provided with a discharge hole (10); A cylindrical steel plate (9) is provided on the outer side of the inner lining (12), and a discharge hole (10) is provided on the cylindrical steel plate (9); The inner lining (12) and the cylindrical steel plate (9) are arranged in sections, and a return hole (14) is provided at the joint of the two ends.

2. The novel ball mill according to claim 1, characterized in that: The frame (1) is equipped with a stirring motor (6), which is connected to the cylinder through a sprocket and a chain.

3. A novel ball mill according to claim 2, characterized in that: A spiral discharge (4) is provided below the outer shell (2), and the spiral discharge (4) is connected to a discharge motor (7).

4. A novel ball mill according to claim 3, characterized in that: The spiral feeder is connected to a feed motor (5).

5. A novel ball mill according to claim 4, characterized in that: The inner side of the cylindrical support plate (8) is provided with an end face liner (11), and the outer radial end face of the end face liner (11) is in contact with the inner liner (12).

6. A novel ball mill according to claim 5, characterized in that: The outer edge of the liner (12) is connected to a return shovel plate (13), which is open, and the return hole is located between the return shovel plate (13) and the cylindrical steel plate (9).

Images