Magnetic wear-resistant stationary vane assembly for a vertical mill separator

By using a modular design with magnetic ceramic patches and high-temperature bonding components in the vertical mill separator, the wear problem of the stationary blades under highly abrasive materials is solved, achieving wear resistance and convenient maintenance, and extending the service life of the equipment.

CN224388897UActive Publication Date: 2026-06-23HEFEI CENTRAL ASIA BUILDING MATERIALS EQUIPMENT CO LTD TIANJIN BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI CENTRAL ASIA BUILDING MATERIALS EQUIPMENT CO LTD TIANJIN BRANCH
Filing Date
2025-07-15
Publication Date
2026-06-23

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Abstract

The utility model relates to powder engineering equipment wear -resistant technical field, concretely is a kind of magnetic wear -resistant stationary vane assembly for vertical mill separator, solve the problem proposed in background art, it includes magnetic ceramic patch, vane base plate, support frame, high temperature bonding assembly, fastening connection assembly, shell straight cylinder section, shell inverted cone section, shell top plate, shell positive cone section, magnetic ceramic patch is pasted on vane base plate surface by high temperature bonding assembly, and whole is fixed on support frame by fastening connection assembly, magnetic ceramic patch is also pasted on the inner surface of shell straight cylinder section, shell inverted cone section, shell top plate and shell positive cone section by high temperature bonding assembly.The utility model, by adopting the composite material patch with ceramic hardness and metal magnetism, cooperate high temperature bonding and modularization fastening structure, solve the abrasion problem under the working condition of high abrasion material.
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Description

Technical Field

[0001] This utility model relates to the field of wear-resistant technology for powder engineering equipment, specifically a magnetic wear-resistant stationary blade assembly for a vertical mill separator. Background Technology

[0002] Vertical roller mill separators, as the core component of vertical roller mills, are widely used in cement production lines (raw material vertical mills, cement vertical mills, coal vertical mills) and the metallurgical industry (slag vertical mills, steel slag vertical mills). Their working environment is harsh, subjecting them to long-term erosion and wear from high-speed, dust-laden airflow. Wear is particularly pronounced when processing high-hardness, highly abrasive materials, directly impacting equipment lifespan and production efficiency.

[0003] The current mainstream wear-resistant methods used for stationary blades have the following shortcomings: integral wear-resistant steel plates are heavy and difficult to replace, overlay welding composite plates have complex processes and are prone to deformation, wear-resistant coatings are easy to peel off, removable liners are costly, and ceramic patches are brittle. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution: a magnetic wear-resistant stationary blade assembly for a vertical mill separator, comprising a magnetic ceramic patch, a blade substrate plate, a support frame, a high-temperature bonding assembly, a fastening connection assembly, a straight cylindrical section of the shell, an inverted conical section of the shell, a top plate of the shell, and a conical section of the shell. The magnetic ceramic patch is bonded to the surface of the blade substrate plate by the high-temperature bonding assembly, and the entire assembly is fixed to the support frame by the fastening connection assembly. The magnetic ceramic patch is also bonded to the inner surfaces of the straight cylindrical section of the shell, the inverted conical section of the shell, the top plate of the shell, and the conical section of the shell by the high-temperature bonding assembly.

[0005] The high-temperature bonding assembly includes a high-temperature resistant adhesive and its matching curing agent.

[0006] The fastening assembly includes bolts, nuts, and lock washers.

[0007] The magnetic ceramic patch is a composite material that combines the hardness of ceramics with the magnetism of metal.

[0008] The blade base plate is made of Q235 carbon structural steel and is provided with bolt fixing holes.

[0009] The support frame is a bent and welded structural component, which is fixedly connected to the outer shell support ring, and is partially welded with wear-resistant steel plates.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By employing composite material patches that combine the hardness of ceramics with the magnetism of metals, along with high-temperature bonding and modular fastening structures, the wear problem under highly abrasive material conditions is solved. The magnetic ceramic patches not only resist the erosion and wear of materials such as steel slag and nickel slag, but also adsorb metal particles to form a protective layer. Its modular design facilitates partial replacement and reduces maintenance costs. The high-temperature bonding and stable support structure ensure long-term reliable operation and extend the service life of the equipment, making it particularly suitable for vertical mill separation equipment in industries such as cement and slag. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the blade substrate plate and magnetic ceramic patch structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the magnetic ceramic patch arrangement of this utility model.

[0016] In the figure: 1. Magnetic ceramic patch; 2. Blade substrate plate; 3. Support frame; 4. High temperature bonding assembly; 5. Fastening connection assembly; 6. Straight section of shell; 7. Inverted cone section of shell; 8. Top plate of shell; 9. Positive cone section of shell. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-3 As shown, the magnetic wear-resistant stationary blade assembly for the vertical mill separator in this embodiment includes a magnetic ceramic patch 1, a blade substrate plate 2, a support frame 3, a high-temperature bonding assembly 4, a fastening connection assembly 5, a straight cylindrical section of the shell 6, an inverted conical section of the shell 7, a top plate of the shell 8, and a positive conical section of the shell 9. The magnetic ceramic patch 1 is bonded to the surface of the blade substrate plate 2 through the high-temperature bonding assembly 4, and the whole assembly is fixed to the support frame 3 through the fastening connection assembly 5. The magnetic ceramic patch 1 is also bonded to the inner surfaces of the straight cylindrical section of the shell 6, the inverted conical section of the shell 7, the top plate of the shell 8, and the positive conical section of the shell 9 through the high-temperature bonding assembly 4.

[0019] The high-temperature bonding component 4 includes a high-temperature resistant adhesive and its matching curing agent.

[0020] The fastening connection assembly 5 includes bolts, nuts, and lock washers.

[0021] The magnetic ceramic patch 1 is a composite material that combines the hardness of ceramics with the magnetism of metal.

[0022] The blade base plate 2 is made of Q235 carbon structural steel and is provided with bolt fixing holes.

[0023] The support frame 3 is a bent and welded structural component, which is fixedly connected to the outer shell support ring, and is partially welded with wear-resistant steel plates.

[0024] The working principle of this utility model is as follows:

[0025] The blade base plate 2 is made of ordinary steel, with magnetic ceramic patches 1, a composite of ceramic and magnet, attached to both sides. These magnetic ceramic patches 1 have high surface hardness and are magnetic, enabling them to adsorb iron powder and magnetic powdery materials during production, forming a protective layer and significantly extending service life. When the magnetic ceramic patch 1 wears out, only the patch 1 needs to be replaced, without replacing the entire blade. This allows for convenient disassembly and assembly without affecting normal equipment maintenance. Magnetic liners are installed on the inner surface of the housing. Magnetic ceramic patches 1 can be directly adhered to the straight cylindrical section 6 and the inverted conical section 7 of the housing. The protective layer on the top plate 8 and the conical section 9 of the housing is fixed using magnetic ceramic patches 1 and high-temperature bonding components 4. In summary, both the stationary blades and the housing magnetic liners can adsorb iron powder and magnetic particles from the material during operation, forming a dynamic protective layer on the surface, significantly improving the wear resistance of the inner wall of the housing and effectively extending the service life of the equipment.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic wear-resistant stationary blade assembly for a vertical mill separator, comprising a magnetic ceramic patch (1), a blade substrate plate (2), a support frame (3), a high-temperature bonding assembly (4), a fastening connection assembly (5), a straight cylindrical section of the shell (6), an inverted conical section of the shell (7), a top plate of the shell (8), and a positive conical section of the shell (9), characterized in that, The magnetic ceramic patch (1) is bonded to the surface of the blade substrate plate (2) by a high-temperature bonding assembly (4), and the whole is fixed to the support frame (3) by a fastening connection assembly (5). The magnetic ceramic patch (1) is also bonded to the inner surface of the straight section (6), the inverted cone section (7), the top plate (8) and the positive cone section (9) of the shell by a high-temperature bonding assembly (4).

2. The magnetic wear-resistant stationary blade assembly for a vertical mill separator according to claim 1, characterized in that: The high-temperature bonding component (4) includes a high-temperature resistant adhesive and its matching curing agent.

3. The magnetic wear-resistant stationary blade assembly for a vertical mill separator according to claim 1, characterized in that: The fastening assembly (5) includes bolts, nuts and anti-loosening washers.

4. The magnetic wear-resistant stationary blade assembly for a vertical mill separator according to claim 1, characterized in that: The magnetic ceramic patch (1) is a composite material that combines the hardness of ceramics with the magnetism of metal.

5. A magnetic wear-resistant stationary blade assembly for a vertical mill separator according to claim 1, characterized in that: The blade base plate (2) is made of Q235 carbon structural steel and is provided with bolt fixing holes.

6. A magnetic wear-resistant stationary blade assembly for a vertical mill separator according to claim 1, characterized in that: The support frame (3) is a bent and welded structural component, which is fixedly connected to the outer shell support ring and is partially welded with wear-resistant steel plates.