Screen mesh anti-blocking structure for vibrating screen

Abstract

The utility model provides a screen mesh anti-blocking structure for a vibrating screen, which belongs to the field of vibrating screens and comprises protective plates arranged on two sides of a screen mesh of the vibrating screen, at least one fixing support is mounted between the protective plates on the two sides along the length direction of the screen mesh, and at least one chain is connected onto the fixing support along the width direction of the screen mesh. A rubber impact ball is connected to the end, away from the fixed support, of the chain, located above a screen of the vibrating screen and can make contact with the screen. The coke screening device has the advantages that the coke screening device can be directly installed on an existing vibrating screen so as to reduce the situation that meshes of a screen are blocked, and the coke screening quality is improved; and the structure is simple, the installation is convenient, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the field of vibrating screens, and in particular relates to a screen anti-blocking structure for vibrating screens. Background Art

[0002] A vibrating screen is a mechanical device used to separate and screen materials. It usually consists of a screen box, a vibrator, a spring, a motor, etc. The motor first provides power to drive the eccentric block to rotate, generating centrifugal force to make the screen box vibrate. The vibration is then used to make the material jump and slide on the screen, so that the material smaller than the screen hole size passes through the screen, and the material larger than the screen hole size remains on the screen, thereby achieving the separation of materials of different particle sizes.

[0003] However, the existing vibrating screens often have the following problems when used for coke screening: when using the vibrating screen to screen the crushed coke at various levels, due to factors such as the coke particle size, screen bar diameter, and coke foam content, coke dust or some flaky materials will adhere to the screen mesh, causing the vibrating screen to become clogged, causing the coke to be unable to be screened normally, and the coke screening quality to decline, thereby affecting the coke screening work.

[0004] In addition, although some vibrating screens on the market are equipped with striking devices, and the screen can be struck by the striking devices to prevent the screen from being blocked, most of the existing striking devices have complex structures and require additional power sources. Moreover, they cannot be directly obtained by simply modifying the existing vibrating screen. Therefore, for manufacturers, the investment cost of using this type of vibrating screen is relatively high. Utility Model Content

[0005] The purpose of the utility model is to propose and design a screen anti-blocking structure for a vibrating screen in response to the problem that the screen is easily blocked when the existing vibrating screen is performing a coke screening operation. The utility model can be directly installed on the existing vibrating screen to reduce the blockage of the screen mesh and improve the screening quality of the coke; and it also has the advantages of simple structure, easy installation and low cost.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is as follows: a screen anti-blocking structure for a vibrating screen, which includes guard plates arranged on both sides of the screen of the vibrating screen, at least one fixed bracket installed between the guard plates along the length direction of the screen, at least one chain connected to the fixed bracket along the width direction of the screen, and a rubber impact ball connected to the end of the chain away from the fixed bracket, the rubber impact ball is located above the screen of the vibrating screen and can contact the screen. In this way, when the present invention is installed on the vibrating screen, during the vibration process of the screen, the high-frequency vibrating screen will collide with the rubber impact ball, and the screen can be cleaned by the collision between the screen and the rubber impact ball, thereby reducing screen blockage and improving the quality of coke screening. At the same time, during the collision between the rubber impact ball and the screen, since the rubber impact ball has a certain elasticity, compared with conventional rigid striking parts, on the one hand, it can reduce noise and improve the comfort of the working environment; on the other hand, it can use the elasticity of the rubber impact ball to increase the number and amplitude of collisions between the rubber impact ball and the screen, thereby increasing the impact force between the rubber impact ball and the screen to ensure the cleaning effect of the screen.

[0007] Furthermore, the ends of the fixing brackets are welded and fixed to the guard plates on both sides of the screen and have good stability.

[0008] Furthermore, the fixed end of the chain is welded and fixed to the fixed bracket, and has good stability.

[0009] Furthermore, the ends of the fixed brackets are provided with mounting portions, which are slidably mounted on the guard plates on both sides of the screen along the length of the screen, and a locking mechanism is provided between the mounting portions and the guard plates. Since the fixed brackets in the present invention are slidably mounted on the guard plates, the position of the entire screen anti-blocking structure can be flexibly adjusted according to actual production conditions and the specifications of the screened materials, so that it can accurately strike the parts of the screen that are prone to blockage.

[0010] Furthermore, the mounting portion is an inverted U-shaped groove arranged at the end of the fixed bracket, and the inverted U-shaped groove is slidably arranged on the corresponding guard plate, and the sliding direction of the fixed bracket can be constrained by the cooperation between the groove wall of the inverted U-shaped groove and the surface of the guard plate.

[0011] Furthermore, the locking mechanism includes a locking hole arranged on the groove wall of the inverted U-shaped groove and a fixing hole arranged on the guard plate. A locking pin is inserted between the locking hole and the corresponding fixing hole, and the mounting part and the guard plate can be fixed together through the locking pin.

[0012] It can be seen from the above technical solution that the utility model has the following advantages: the utility model can effectively reduce the blockage of the screen mesh through the collision of the rubber impact ball with the screen, thereby improving the screening quality of coke; and since the utility model can be directly installed on the guard plate of the existing vibrating screen through a fixed bracket to transform it into a new equipment that is not prone to screen blockage failure, the utility model also has the advantages of simple structure, easy installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a structural diagram of a specific implementation method of the utility model.

[0015] In the figure: 1. Screen; 2. Rubber impact ball; 3. Chain; 4. Fixed bracket; 5. Vibrating screen. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, the utility model provides a screen anti-blocking structure for a vibrating screen, which includes guard plates arranged on both sides of the screen 1 of the vibrating screen 5, and at least one fixed bracket 4 is welded between the guard plates on both sides along the length direction of the screen 1, and at least one chain 3 is welded on the fixed bracket 4 along the width direction of the screen 1, and a rubber impact ball 2 is connected to the end of the chain 3 away from the fixed bracket 4, and the rubber impact ball 2 is located above the screen 1 of the vibrating screen 5 and can contact the screen 1.

[0018] In this way, when the present invention is installed on the existing vibrating screen 5, during the vibration process of the screen 1, the high-frequency vibrating screen 1 will collide with the rubber impact ball 2, and the screen 1 will be cleaned through the collision between the screen 1 and the rubber impact ball 2, thereby reducing the blockage of the screen 1 and improving the quality of coke screening. At the same time, during the collision between the rubber impact ball 2 and the screen 1, since the rubber impact ball 2 has a certain elasticity, compared with conventional rigid striking parts, on the one hand, it can reduce noise and improve the comfort of the working environment; on the other hand, it can use the elasticity of the rubber impact ball 2 to increase the number and amplitude of collisions between the rubber impact ball 2 and the screen 1, thereby increasing the impact force between the rubber impact ball 2 and the screen 1 to ensure the cleaning effect of the screen 1.

[0019] In addition, as a preference, in addition to the above-mentioned welding method, the connection method between the guard plate and the fixed bracket 4 can also adopt an adjustable sliding structure. Specifically, the end of the fixed bracket 4 is provided with a mounting portion, and the mounting portion is an inverted U-shaped groove provided at the end of the fixed bracket 4, and the inverted U-shaped groove is slidably installed on the corresponding guard plate along the length direction of the screen 1, and a locking mechanism is provided between the groove wall of the inverted U-shaped groove and the guard plate. The locking mechanism includes a locking hole provided on the groove wall of the inverted U-shaped groove and a fixing hole provided on the guard plate, and a locking pin is inserted between the locking hole and the corresponding fixing hole, and the mounting portion and the guard plate can be fixed together by the locking pin.

[0020] At this time, since the fixed bracket 4 in the utility model is installed on the guard plate with a slidable structure, the position of the anti-blocking structure of the entire screen 1 can be flexibly adjusted according to the actual production conditions and the specifications of the screened materials, that is, the locking pin can be inserted into the locking hole and the fixing hole at the corresponding position, so that the rubber impact ball 2 can accurately hit the easily blocked parts of the screen 1 and achieve the purpose of accurately cleaning the screen 1.

[0021] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0022] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screen anti-blocking structure for a vibrating screen, comprising guard plates arranged on both sides of a screen (1) of a vibrating screen (5); characterized in that: At least one fixed bracket (4) is installed between the two side guard plates along the length direction of the screen (1), at least one chain (3) is connected to the fixed bracket (4) along the width direction of the screen (1), and a rubber impact ball (2) is connected to the end of the chain (3) away from the fixed bracket (4), and the rubber impact ball (2) is located above the screen (1) of the vibrating screen (5) and can contact the screen (1).

2. The screen anti-blocking structure for a vibrating screen according to claim 1, characterized in that: The ends of the fixed bracket (4) are welded and fixed to the guard plates on both sides of the screen (1).

3. The screen anti-blocking structure for a vibrating screen according to claim 1, characterized in that: The fixed end of the chain (3) is welded and fixed on the fixed bracket (4).

4. The screen anti-blocking structure for a vibrating screen according to claim 1, characterized in that: The end of the fixed bracket (4) is provided with a mounting portion, which is slidably mounted on the guard plates on both sides of the screen (1) along the length direction of the screen (1), and a locking mechanism is provided between the mounting portion and the guard plates.

5. The screen anti-blocking structure for a vibrating screen according to claim 4, characterized in that: The mounting portion is an inverted U-shaped groove provided at the end of the fixed bracket (4), and the inverted U-shaped groove is slidably provided on the corresponding guard plate.

6. The screen anti-blocking structure for a vibrating screen according to claim 5, characterized in that: The locking mechanism comprises a locking hole arranged on the groove wall of the inverted U-shaped groove and a fixing hole arranged on the guard plate, and a locking pin is inserted between the locking hole and the corresponding fixing hole.

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