WO2018165783A1

WO2018165783A1 - Metal magnetic end lining board having staggered magnetic poles arranged along radial lines

Info

Publication number: WO2018165783A1
Application number: PCT/CN2017/000618
Authority: WO
Inventors: 魏明安; 武文建; 吴建明
Original assignee: 北京环磨科技有限公司; 北京环磨矿冶能效技术研究院有限公司; 北京耐磨标准技术有限公司
Priority date: 2017-03-17
Filing date: 2017-10-10
Publication date: 2018-09-20
Also published as: CN108620192B; WO2018165783A8; CN108620192A

Abstract

A metal magnetic end lining board having staggered magnetic poles arranged along radial lines, which consists of a housing (1), magnetic block groups (2) and an adhesive. The housing (1) is made of a magnetically non-conductive metal material, having an approximate annular sector shape, and being provided with a working surface (4) and a mounting surface (5). The mounting surface (5) of the housing (1) is a box shape which consists of a plurality of annular sector-shaped lattices (3); a magnetic block group (2) is mounted within a lattice (3), and the direction of polarity of the magnetic block group (2) which is mounted in the lattice (3) is such that a magnetic block group (2) which is located at a position on a same radial line has the same polarity, while a magnetic block group (2) at a position on an adjacent radial line has the opposite polarity, and thus the direction of the magnetic field is circumferential, thereby improving the robustness of a protective layer and extending the service life of the magnetic end lining board.

Description

Metal magnetic end liner specification in which magnetic poles are arranged in a staggered manner

Technical field

The invention relates to a metal magnetic end lining which is arranged in a metal mineral, an industrial mineral, a chemical mineral, an energy mineral and a building material grinding mill to protect the end cap of the grinding machine cylinder from reducing wear. board.

Background technique

The structure of the existing metal magnetic end liner is composed of a casing (1), a magnet block (2) and an adhesive. The outer casing (1) is made of a non-magnetic metal material, and has a shape of a box composed of a plurality of lattices (3), and each lattice (3) is aligned by a spoke line and a circumferential position. The magnetic block group (2) is placed in each of the lattices (3) of the outer casing and bonded to the lattice (3) with an adhesive. The polarity of the magnetic block group (2) loaded into the lattice (3) is such that the magnetic block groups (2) located at the same radial position have the same polarity, and the magnetic block groups (2) at the adjacent two spoke positions are opposite in polarity. . The closed side of the outer casing (1) is the working surface (4). The surface of the open magnetic block of the outer casing (1) is exposed, and is recessed in a plane with the outer wall of the outer casing, which is a mounting surface (5). In use, the mounting surface (5) of the liner is adsorbed on the surface of the mill end liner to be protected by the magnetic field formed by the magnet block (2), and the working surface (4) adsorbs a layer of crushed steel balls and ferromagnetism. The material is composed of a protective layer to avoid direct wear on the surface of the outer casing and prolong the life of the end liner.

The existing metal magnetic end lining plate stated above, because the polarities of the magnetic block group are staggered according to the circumference of different radii, the direction of the formed magnetic field is the radial direction, perpendicular to the impact direction of the load during the working of the mill, so that the magnetic end lining The protective layer adsorbed by the board is easily damaged, and the life of the end liner is adversely affected.

Summary of the invention

In order to solve the problem that the magnetic direction of the existing metal magnetic end lining plate is in the radial direction, perpendicular to the impact direction of the load during the working of the mill, and the protective layer adsorbed by the magnetic end lining plate is easily broken, the present invention proposes a magnetic pole according to the convection line. Staggered metal magnetic end liners.

The technical solution adopted by the present invention to solve the technical problem is that the magnetic block group (2) at the same radial position on the magnetic end plate has the same polarity, and the magnetic block group (2) at the adjacent radial position is The opposite is true.

The beneficial effects of the present invention are: since the magnetic block groups (2) at the same radial position on the magnetic end plate have the same polarity, the magnetic block groups (2) at adjacent spoke positions have opposite polarities, so that the magnetic field direction It becomes a circumferential direction, which improves the robustness of the protective layer and prolongs the life of the magnetic end liner.

BRIEF DESCRIPTION OF THE DRAWINGS

1 and 2 are schematic views showing the structure of a metal magnetic end liner in which magnetic poles are staggered in a spoke line according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a metal magnetic end liner in which magnetic poles are alternately arranged in a spoke line.

Fig. 2 is a view taken along the line A in Fig. 1;

3 is a view showing the actual installation of a metal magnetic end lining plate in which magnetic poles are arranged in a staggered manner on the surface of the end cap of the mill according to the present invention.

4 and 5 are schematic views showing the structure of a conventional metal magnetic end liner.

Figure 5 is a B-direction view of Figure 4 .

Figure 6 is a view showing the actual installation of the existing metal magnetic end liner on the surface of the end cap of the mill.

In the figure: (1) metal magnetic end liner housing; (2) magnetic block group; (3) grid; (4) liner working surface; (5) liner mounting surface.

Implementation

1 and 2 show an embodiment of a metal magnetic end liner in which magnetic poles are alternately arranged in a spoke line, which are made of a casing (1), a magnetic block group (2) and an adhesive.

The outer casing (1) is made of a non-magnetic metal material and has a shape of a box composed of a plurality of lattices (3), and each of the lattices (3) forms an array of sectors. The lattice (3) is closed on one side and open on the other side, and is slightly larger than a group of magnetic blocks (2). The closed side of the lattice (3) on the outer casing (1) is the working surface (4). The surface of the magnetic block on the open side of the lattice (3) on the outer casing (1) is exposed, and the wall of the outer casing (1) is in a plane or slightly concave, which is a mounting surface (4).

The magnetic block group (2) is composed of 1 to 10 magnetic blocks, and the magnetic block material is a permanent magnet material. Each of the magnetic blocks is adsorbed to each other in the thickness direction or bonded together by an adhesive, and the thickness of the magnetic blocks may be equal or unequal. The number of the magnetic block group (2) is equal to the number of the lattices (3), and the outer shape is slightly smaller than the outer shape of the lattice (3). The magnetic block groups (2) are loaded into the respective lattices (3) from the open side of the lattice (3) in a one-to-one correspondence, and are bonded to the lattices (3) with an adhesive. The magnetic pole group (2) loaded into the lattice (3) has a magnetic pole polarity direction such that the magnetic block group (2) located at the same radial position has the same polarity, and the magnetic block group (2) at the adjacent radial position The opposite is true.

The actual installation of the metal magnetic end lining of the magnetic poles arranged in a staggered manner on the protected surface is shown in FIG. A sufficient number of the hardened metal magnetic end liners of the present invention, manufactured in accordance with the above embodiments, are applied over the entire surface of the end cap to be protected. The mounting surface of the lining plate is adsorbed on the surface of the end cover to be protected, and the working surface is coated with a layer of broken steel balls and ferromagnetic materials to form a protective layer, and the protective layer is adsorbed on the working surface. Since the magnet block groups (2) at the same radial position have the same polarity, the magnetic block groups (2) at adjacent spoke positions have opposite polarities, so that the magnetic field direction becomes a circumferential direction, which improves the robustness of the protective layer. It can better protect the magnetic end liner and extend the life of the magnetic end liner.

Industrial applicability

The invention relates to a metal magnetic end lining plate in which magnetic poles are arranged in a staggered manner. The outer shell material, the magnetic block and the adhesive are mature materials, which are easily available on the market. The manufacturing process is mature and easy to manufacture.

The finished metal magnetic end liner of the present invention in which the magnetic poles are staggered by the spokes can be used in a cylindrical mill such as a ball mill and a gravel mill, and only the lining plate can be adsorbed to the corresponding position on the end cover one by one. The installation method is simple and easy to operate.

The metal magnetic end lining plate in which the magnetic poles are staggered by the spokes has a reasonable magnetic field direction, and the impact damage to the protective layer is slight, so the service life of the end lining plate can be prolonged. It also relies on magnetic fixing, no bolts, convenient installation and maintenance, reducing labor intensity; reducing parking maintenance time, increasing mill operating rate; reducing end cap bolt holes and reducing slurry leakage; liner quality is light, reducing mill operation Power, saving power consumption; low noise, reliable operation and other industrial applications.

Claims

A metal magnetic end lining plate in which magnetic poles are alternately arranged in a spoke line, which is made of a casing (1), a magnetic block group (2) and an adhesive, and is characterized by a magnetic block group located at the same radial position (2) The polarity is the same, and the magnetic block group (2) at the adjacent spoke position has opposite polarities, which makes the direction of the magnetic field into a circumferential direction, thereby improving the robustness of the protective layer and prolonging the life of the magnetic end plate.