Novel wear-resistant mine screen

Abstract

The utility model relates to the technical field of mine screens, and particularly discloses a novel wear-resistant mine screen which comprises a screen body, the screen body is composed of a plurality of screen wire frameworks, the section of each screen wire framework is in a solid U shape, and a wear-resistant layer is arranged on the top of each screen wire framework in a surfacing mode. The upper end and the lower end of the cross section are arc-shaped, and the middle part and the two sides of the cross section are vertical. According to the novel wear-resistant mine screen, the section of the screen wire framework is changed into the solid U shape, and the wear-resistant layer is overlaid on the top, so that on the premise of not changing the mesh number of the screen and the width of the screen wire, the longitudinal thickness of the screen wire is increased, the longitudinal shearing force of the screen main body is effectively improved, and the overall bearing capacity is enhanced; and high-strength impact in the mine screening operation can be better adapted. And the wear-resistant layer is only overlaid on the top of the screen wire framework without being completely wrapped in the circumferential direction, so that the wear-resistant property of key parts in contact with ores is ensured, the use amount of wear-resistant materials is reduced, and the production cost is effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of mining screen technology, specifically a new type of wear-resistant mining screen. Background Technology

[0002] In mining operations, mine screens are key components for ore screening, and their performance directly affects screening efficiency and equipment lifespan. Traditional mine screens mostly use a circular wire structure. Under long-term friction and impact with ore, the wires are prone to wear and breakage, leading to overall screen failure. Furthermore, to improve screen wear resistance, the wires were previously welded with wear-resistant materials. However, this method not only increases production costs but also reduces production efficiency due to the complexity of the welding process. In addition, the structural design of traditional screens results in insufficient longitudinal load-bearing capacity, making it difficult to meet the demands of high-intensity, high-load mining screening operations. Therefore, a new type of screen with optimized structure and improved performance is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of wear-resistant mining screen to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel wear-resistant mining screen, comprising a screen body, the screen body being composed of multiple screen wire skeletons, the cross-section of the screen wire skeleton being a solid U-shape, and a wear-resistant layer being welded to the top of the screen wire skeleton to form a new screen wire with a cross-section that is arc-shaped at both ends and vertical on both sides in the middle.

[0005] Preferably, the surface where the sieve wire skeleton connects to the wear-resistant layer is provided with an embedded groove.

[0006] Preferably, the cross-section of the embedded groove is dovetail-shaped.

[0007] Preferably, the cross-section of the embedded groove is rectangular.

[0008] Preferably, the cross-section of the embedded groove is arc-shaped.

[0009] Preferably, the surface where the sieve wire skeleton connects to the wear-resistant layer is provided with a protrusion, and the wear-resistant layer wraps around the outer wall of the protrusion.

[0010] Preferably, multiple notches are made horizontally on the raised portion.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This new type of wear-resistant mining screen changes the cross-section of the screen wire skeleton to a solid U-shape and welds a wear-resistant layer on top. Without changing the screen mesh number and screen wire width, it increases the longitudinal thickness of the screen wire, effectively improving the longitudinal shear force of the screen body and enhancing the overall load-bearing capacity, so as to better adapt to the high-intensity impact in mining screening operations.

[0013] The wear-resistant layer is welded only on the top of the screen wire frame, without needing to cover the entire circumference. This ensures the wear resistance of key parts in contact with the ore, reduces the amount of wear-resistant material used, and effectively saves production costs.

[0014] The screen wire skeleton and the wear-resistant layer are connected by an embedded groove or a raised structure. By optimizing the connection method, the contact area and bonding stability between the two are increased, the risk of wear-resistant layer falling off is reduced, and the service life of the screen is extended. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the screen in a preferred embodiment of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the screen in a preferred embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram of the screen in a preferred embodiment of the present invention;

[0018] Figure 4 This is a top view of the screen in a preferred embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the sieve wire in a preferred embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the sieve wire in another preferred embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the sieve wire in another preferred embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram of the cross-sectional structure of the sieve wire in another preferred embodiment of the present invention;

[0023] Figure 9 This is a schematic diagram of the cross-sectional structure of the sieve wire in another preferred embodiment of the present invention.

[0024] In the diagram: 1. Wire mesh frame; 2. Wear-resistant layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-9 This utility model provides a technical solution:

[0027] Reference Figure 1-4 A novel wear-resistant mining screen includes a screen body, which is woven from multiple straight screen wire skeletons 1, or the screen wire skeletons 1 are corrugated and then welded together to form the screen body. The screen wire skeletons 1 are made of high-strength alloy steel.

[0028] The cross-section of the screen wire skeleton 1 is a solid U-shape, and a wear-resistant layer 2 is welded to the top of the screen wire skeleton 1 to form a new screen wire with a cross-section that is arc-shaped at both ends and vertical on both sides in the middle. With the mesh count and screen wire width remaining unchanged, the longitudinal thickness of the screen wire is increased, which improves the longitudinal shear force of the screen body and enhances the overall load-bearing capacity of the screen.

[0029] Reference Figure 5 The wear-resistant layer 2 is made of carbide alloy and is attached to the top of the wire mesh skeleton 1 by a welding process. It is not necessary to completely cover the wire mesh skeleton 1 circumferentially.

[0030] Reference Figure 6-8 The surface where the wire mesh frame 1 connects to the wear-resistant layer 2 is provided with an embedding groove. The embedding groove is used to increase the stability of the wire mesh frame 1 and the wear-resistant layer 2, reducing separation and extending service life. The depth of the embedding groove is generally controlled at 1 / 3 of the height of the wire mesh frame 1 to ensure the wear-resistant layer is stable and does not affect the overall structural strength of the wire mesh.

[0031] Reference Figure 6 The embedded groove has a dovetail groove cross section. A groove is opened on the top of the screen wire skeleton 1. The inner wall of the groove is inclined inward to achieve a shape that is wider at the bottom and narrower at the top. Then, the wear-resistant layer 2 is filled to improve the stability of the wear-resistant layer 2.

[0032] Reference Figure 7 The cross-section of the embedded groove is rectangular. Setting the embedded groove as square is to improve the connection effect between the wear-resistant layer 2 and the wire skeleton 1 while reducing the difficulty of the processing technology.

[0033] Reference Figure 8 The cross-section of the embedded groove is arc-shaped. Setting the embedded groove to be arc-shaped is to improve the connection effect between the wear-resistant layer 2 and the wire skeleton 1 while reducing the difficulty of the processing technology.

[0034] Reference Figure 9 The surface where the wire mesh skeleton 1 connects to the wear-resistant layer 2 is provided with protrusions. The wear-resistant layer 2 is wrapped around the outer wall of the protrusions. The protrusions increase the contact area between the wire mesh skeleton 1 and the wear-resistant layer 2, and the increased area enhances the adhesion effect.

[0035] Multiple notches are made on the upper and lower parts of the protrusion, which increases the stress points and area, forms multiple limiting points, and greatly improves the reliability of the fixed connection.

[0036] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the 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.

[0038] 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 new type of wear-resistant mine screen, including a screen main body, the screen main body is composed of multiple screen wire skeletons, and is characterized in that: The cross-section of the sieve wire framework is a solid U shape, and a wear-resistant layer is surfacing-welded on the top of the sieve wire framework to form a new sieve wire with a cross-section that is circular-arc-shaped at both upper and lower ends and vertical on both sides in the middle.

2. A novel wear-resistant mine screen according to claim 1, characterized in that: The surface of the sieve wire framework connected to the wear-resistant layer is provided with an embedding groove.

3. A novel wear-resistant mine screen according to claim 2, characterized in that: The cross-section of the embedding groove is in the shape of a dovetail groove.

4. A novel wear-resistant mine screen according to claim 2, characterized in that: The cross-section of the embedding groove is rectangular.

5. A novel wear-resistant mine screen according to claim 2, characterized in that: The cross-section of the embedding groove is circular-arc-shaped.

6. A novel wear-resistant mine screen according to claim 1, characterized in that: The surface of the sieve wire framework connected to the wear-resistant layer is provided with a protrusion, and the wear-resistant layer wraps around the outer wall of the protrusion.

7. A novel wear-resistant mine screen according to claim 6, characterized in that: A plurality of slits are horizontally and vertically opened on the protrusion part.

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