Screen piece of roller screen

Abstract

The utility model discloses a screen piece of a roller screen, which relates to the technical field of roller screens, and comprises a screen piece body and a wear-resistant layer, the wear-resistant layer is arranged on the side surface of the screen piece body, the wear-resistant layer is of a layered structure formed by arranging a plurality of grooves, and a wear-resistant alloy body is embedded in each groove. The utility model has the characteristics of good wear-resisting property and long service life.

Description

Technical Field

[0001] This utility model relates to the field of roller screen technology, and in particular to a roller screen plate. Background Technology

[0002] Roller screens are commonly used screening equipment in industries such as mining, coal, power, and building materials. When a roller screen is working, a motor drives the rollers to rotate via a transmission mechanism. The screen plates on the rollers rotate accordingly, causing the material on the screen surface to move forward. During this process, material smaller than the gap between the screen plates falls due to its own weight and the rotational force of the rollers, while material larger than the gap remains on the screen surface and continues to move forward, thus achieving screening.

[0003] Existing roller screen structures, such as Chinese patent document CN204052101U, disclose a roller screen screen gap adjustment structure, including a screen shaft, screen plates and spacers, wherein the screen plates and spacers are installed on the screen shaft at intervals, and a gasket is provided between the spacer and the screen plate on one or both sides, and the gasket is installed on the screen shaft.

[0004] Although the above technical solution adjusts the gap between the screen plates by adding or removing shims between the screen plates and the spacers, and when the screen plate wear causes the gap between the screen plates to become larger and the screening particle size cannot be guaranteed, the shims can be reduced or completely removed to reduce the gap between the screen plates and ensure the particle size, this technical solution only provides a remedial measure for the wear of the screen plates and cannot improve the wear resistance of the screen plates themselves, making it difficult to effectively extend the service life of the screen plates. Utility Model Content

[0005] The purpose of this utility model is to provide a roller screen plate to solve the problems existing in the above-mentioned related technologies, which has the characteristics of good wear resistance and long service life.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a roller screen plate, including a screen plate body and a wear-resistant layer. The wear-resistant layer is disposed on the side of the screen plate body. The wear-resistant layer is a layered structure composed of multiple grooves, and each groove is embedded with a wear-resistant alloy body.

[0008] Preferably, the groove is a circular groove, an elliptical groove, a strip-shaped groove, or a fan-shaped groove.

[0009] Preferably, the groove has a trapezoidal cross-section, and the groove opening width is smaller than the groove bottom width.

[0010] Preferably, the side of the sieve body has a plurality of grooves distributed radially outward from its center.

[0011] Preferably, the wear-resistant alloy body is a nickel-chromium alloy body, a chromium carbide alloy body, a tungsten carbide alloy body, or a silicon carbide alloy body.

[0012] Preferably, the sieve body is a manganese alloy or a chromium alloy.

[0013] Preferably, the wear-resistant layer is provided on both sides of the sieve body.

[0014] This utility model achieves the following technical advantages compared to related technologies:

[0015] The roller screen plate provided by this utility model has a wear-resistant layer on the side of the screen plate body. The wear-resistant layer is a layered structure composed of multiple grooves, and each groove is embedded with a wear-resistant alloy body, which can improve the wear resistance of the screen plate and significantly extend the service life of the screen plate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the roller screen plate provided in Embodiment 1 of this utility model;

[0018] Figure 2 for Figure 1 Sectional view of AA in the middle;

[0019] Figure 3 This is a schematic diagram of the roller screen plate provided in Embodiment 2 of this utility model;

[0020] Figure 4 for Figure 3 Cross-sectional view of the middle section (BB);

[0021] Figure 5 This is a schematic diagram of the roller screen plate provided in Embodiment 3 of this utility model;

[0022] Figure 6 for Figure 5 Cross-sectional view of the middle CC section.

[0023] In the figure: 1-screen plate body, 2-wear-resistant layer, 201-groove, 202-wear-resistant alloy body. Detailed Implementation

[0024] 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.

[0025] The purpose of this utility model is to provide a roller screen plate to solve the problems existing in related technologies, which has the characteristics of good wear resistance and long service life.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figures 1-2 As shown, this embodiment provides a roller screen plate, including a screen plate body 1 and a wear-resistant layer 2. The wear-resistant layer 2 is disposed on the side of the screen plate body 1. The wear-resistant layer 2 is a layered structure composed of multiple grooves 201, and each groove 201 is embedded with a wear-resistant alloy body 202.

[0029] In this embodiment, the groove 201 is a circular groove; the cross-section of the groove 201 is a trapezoidal cross-section, and the width of the groove opening of the groove 201 is smaller than the width of the groove bottom, that is, the groove 201 adopts a dovetail groove structure, which is beneficial for the wear-resistant alloy body 202 to be firmly fixed in the groove 201.

[0030] In this embodiment, multiple grooves 201 are radially distributed on the side of the sieve body 1, starting from its center; specifically, as shown... Figure 1 As shown, in this embodiment, the sieve body 1 has two rings of circular grooves distributed on one annular surface, and each ring of circular grooves is composed of 12 circular grooves arranged in a ring.

[0031] In this embodiment, the wear-resistant alloy body 202 is a nickel-chromium alloy body, a chromium carbide alloy body, a tungsten carbide alloy body, or a silicon carbide alloy body.

[0032] In this embodiment, the sieve body 1 is a manganese alloy or a chromium alloy.

[0033] In this embodiment, wear-resistant layers 2 are provided on both sides of the screen body 1, which improves the wear resistance of the working surfaces on both sides of the screen body 1 and significantly extends its service life.

[0034] Example 2

[0035] like Figures 3-4As shown, the difference between this embodiment and Embodiment 1 is that the groove 201 is a strip groove, and a ring of strip grooves is distributed on a circular surface of the sieve plate body 1. The ring of strip grooves is formed by 8 strip grooves arranged in a ring.

[0036] Example 3

[0037] like Figures 5-6 As shown, the difference between this embodiment and Embodiment 1 is that the groove 201 is a fan-shaped groove, and a ring of fan-shaped grooves is distributed on a circular surface of the sieve plate body 1. The ring of fan-shaped grooves is formed by 8 fan-shaped grooves arranged in a ring.

[0038] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A roller screen plate, characterized in that: It includes a screen plate body and a wear-resistant layer. The wear-resistant layer is disposed on the side of the screen plate body. The wear-resistant layer is a layered structure composed of multiple grooves, and each groove is embedded with a wear-resistant alloy body.

2. The roller screen plate according to claim 1, characterized in that: The groove can be a circular groove, an elliptical groove, a strip-shaped groove, or a fan-shaped groove.

3. The roller screen plate according to claim 1, characterized in that: The groove has a trapezoidal cross-section, and the groove opening width is smaller than the groove bottom width.

4. The roller screen plate according to claim 1, characterized in that: The sieve body has multiple grooves arranged radially outward from its center on its side surface.

5. The roller screen plate according to claim 1, characterized in that: The wear-resistant alloy body is a nickel-chromium alloy body, a chromium carbide alloy body, a tungsten carbide alloy body, or a silicon carbide alloy body.

6. The roller screen plate according to claim 1, characterized in that: The sieve body is made of manganese alloy or chromium alloy.

7. The roller screen plate according to claim 1, characterized in that: The wear-resistant layer is provided on both sides of the sieve body.

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