Roller lining plate of ball mill

Abstract

The utility model discloses a lining plate for a roller of a ball mill. The lining plate is formed into a whole by a lining plate body 1, a cylindrical cavity 2, a bolt hole 3 and a regular square trapezoidal bulge 4. And under the adsorption of the magnets in the lining plate, the surface of the lining plate body 1 is wrapped by the small steel balls, so that the lining plate body is protected from being abraded, the frequency of mutual collision between the steel balls and ore materials is improved, and the milling efficiency of the ball mill is effectively improved.

Description

Technical Field

[0001] The utility model relates to mechanical equipment, in particular to a ball mill drum lining. Background Art

[0002] Ball mills are widely used in industries such as metallurgy, chemicals, cement, ceramics, construction, electricity, and medicine. They perform dry or wet grinding of various grindable materials. A ball mill primarily consists of a drum, drum lining, reducer, transmission gears, shaft and bearing housing, and an electric motor. The drum is a cylindrical body welded from steel plates. A lining, also known as a drum liner, protects the drum from wear. Inside the drum are numerous steel balls and the ore or other abrasive to be ground. As the motor drives the drum through the reducer and transmission gears, the steel balls and ore collide and grind against each other, ultimately crushing the ore or other abrasive. In nonferrous metallurgy, this type of ball mill is used to grind and pulverize materials. It consists of two sections, separated by a screen in the middle. In the front section, the steel balls collide with the ore, producing a rough grinding process that produces a granular powder. In the rear section, small steel balls and cylindrical balls perform fine grinding on the incoming granular powder.

[0003] To prevent wear on the drum, the inner wall of the drum is covered with drum liners, forming a protective layer. The lining surface is smooth, but if the fixing holes are severely worn, the lining cannot be fixed and the lining falls off, causing wear and damage to the drum. The disadvantages of this type of drum lining are: 1. If the fixing holes are severely worn, the lining falls off, causing wear and damage to the drum; 2. The lining surface is flat, resulting in low grinding efficiency. Summary of the Invention

[0004] The utility model provides a ball mill drum lining plate. The lining plate has a simple structure, is resistant to wear and tear and falls off, effectively improves the powder making efficiency of the ball mill, and has a long service life.

[0005] The utility model provides the following technical solutions to solve the above-mentioned shortcomings:

[0006] A rectangular lining plate has a cylindrical cavity at the fixing hole of the lining plate. The cavity is used to fit a cylindrical magnet, which is used to attract a layer of small steel balls on its surface by magnetic force. Due to the presence of the small steel balls, the lining plate body is protected from wear, and wear at the fixing hole of the lining plate is prevented and avoided, which may cause the lining plate to fall off and the drum body to be worn and damaged.

[0007] A square trapezoidal protrusion is formed on the surface of the liner of the cylindrical cavity to achieve the effective thickness of the liner shell at this location. In this way, each fixing hole on the inner working surface of the liner is a square trapezoidal protrusion, which can effectively scrape up more materials and steel balls, increase the frequency of collision between steel balls and ore materials, and thus effectively improve the pulverizing efficiency of the ball mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of a single drum liner of a ball mill according to the present invention;

[0009] Figure 2 This is a schematic diagram of the assembly of the ball mill drum and liner of the utility model. DETAILED DESCRIPTION

[0010] The present invention will be described in further detail below with reference to the accompanying drawings.

[0011] In order to better illustrate the technical solution and purpose and advantages of the present invention, the present invention is further described in detail with reference to the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0012] Figure 1 As shown, a ball mill liner is composed of a liner body 1, a cylindrical cavity 2, a bolt hole 3, and a square trapezoidal protrusion 4 to form an integral body.

[0013] Figure 2 As shown, when the liner is installed in the ball mill cylinder, a cylindrical magnet with a hole in the middle is first installed in the cylindrical cavity 2, and then the fixing bolt 6 is inserted into the bolt hole 3, passed through the hole in the cylindrical magnet, and fastened to the roller plate 5.

[0014] When loading steel balls, first load some small steel balls and slowly rotate the drum. The small steel balls are evenly adsorbed on the surface of the liner and wrap the liner body. Then add steel balls of other specifications and abrasives for grinding. This will first protect the liner body and increase the frequency of collision between the steel balls and the ore materials, thereby effectively improving the powder making efficiency of the ball mill.

Claims

1. A ball mill drum liner, mainly composed of a liner body (1), a cylindrical cavity (2), a bolt hole (3), and a square trapezoidal protrusion (4) to form a whole, characterized in that: A cylindrical magnet with a hole in the middle is installed in the cylindrical cavity of the lining body (1), and a square trapezoidal protrusion (4) is provided at each fixing hole position on the inner surface of the lining body (1).

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