Anti-blocking large ball roller screen

Abstract

The utility model relates to the field of metallurgical mechanical equipment, in particular to an anti-blocking large ball roller screen which comprises a shuttle type feeding belt, a large ball roller screen body, a material returning bin and a material receiving wide belt, the shuttle type feeding belt is arranged over the large ball roller screen body, a feeding port of the material returning bin is formed in one side of the conveying tail end of the large ball roller screen body, and a discharging port of the large ball roller screen body is formed in the other side of the conveying tail end of the large ball roller screen body. The material receiving wide belt is arranged under the large ball roller screen in parallel, the large ball roller screen comprises a plurality of screen rollers rotating synchronously, a roller gap is formed between every two adjacent screen rollers, and the outer wall of each screen roller is connected with a turning plate in the axis direction. According to the large-ball roller screen, the turning plate with a certain height is arranged on each screen roller in the axial direction, so that the turning plates can timely and continuously turn pellets clamped between roller gaps into the material returning bin in the synchronous operation process of the screen rollers, the situation that materials are clamped by the screen rollers is completely eradicated, blocking of the large-ball roller screen is effectively prevented, and the service life of the large-ball roller screen is prolonged. The manual cleaning problem is reduced, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical mechanical equipment, in particular to a large ball roller screen capable of preventing blockage. Background Art

[0002] In the process of resource utilization of metallurgical dust and mud, it is necessary to mix the metallurgical dust and mud according to the raw material components, and then go through the forming process and the screening process to screen out the metallurgical dust and mud pellets of suitable particle size for the next processing process. In the screening process, the metallurgical dust and mud pellets are required to screen out two kinds of pellets with larger particle size and smaller particle size. Roller screens are generally used to screen the pellets in industrial production. After the material flow passes through the large ball roller screen, the particles with a particle size smaller than the requirement of the large ball roller screen pass through the roller screen, and the pellets with larger particle size are intercepted by the large ball roller screen and enter the large ball return bin with the roller movement of the large ball roller screen. The material flow passing through the large ball roller screen falls on the wide belt and is transported to the small ball roller screen. The particles with a particle size smaller than the requirement of the small ball roller screen pass through the roller screen and fall into the small ball return bin. The pellets finally intercepted by the small ball roller screen are the pellets that meet the particle size requirements and move to the lower section with the small ball roller screen.

[0003] During the production process, the initial pellet flow is transported to the top of the large ball roller screen via a shuttle feed belt, and falls into the large ball roller screen as the belt rotates. Pellets with larger particle sizes cannot pass through the gap of the roller screen. Ideally, these large-size pellets stuck in the gap of the large ball roller screen will roll into the large ball return bin on one side of the large ball roller screen with the roller screen. However, in production practice, the large ball roller screen has insufficient friction with the large balls, and the large balls are stuck between the gaps of the large ball rollers, causing sliding friction with the roller screen. In this way, the large balls cannot be transferred to the large ball return bin in time, and the large ball roller screen is always blocked, affecting the screening effect of the large ball roller screen.

[0004] The existing Chinese patent application CN211989675U discloses a pellet roller screen anti-blocking cleaning device. The disclosed patent drives the rotating shaft to rotate through a power device, and the cleaning rod on the rotating shaft passes through the gap of the roller screen one by one, and the large pieces of materials blocked in the gap are pushed to the open space on one side of the pellet roller screen. However, since the cleaning rod rotates 360° during the pushing process, it is inevitable that there are pellets with smaller particle sizes. During the rising process of the cleaning rod, they will follow the cleaning rod to push outward, and then there will be pellets that meet the particle size requirements will follow the pushing of the cleaning rod and fall to one side of the pellet roller screen, affecting the screening effect of the roller screen, increasing the manual work of sorting the dropped materials, which is time-consuming and labor-intensive. Utility Model Content

[0005] The utility model provides a large ball roller screen capable of preventing blockage, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A large ball roller screen that can prevent blockage includes a shuttle feed belt, a large ball roller screen, a return bin and a wide receiving belt, wherein the shuttle feed belt is arranged directly above the large ball roller screen, the feed port of the return bin is arranged on one side of the conveying end of the large ball roller screen, and the wide receiving belt is arranged in parallel directly below the large ball roller screen, the large ball roller screen includes a plurality of synchronously rotating screen rollers, a roller gap is arranged between each adjacent two screen rollers, the outer wall of each screen roller is connected to a flap along the axial direction, and the flaps belonging to the plurality of screen rollers do not interfere with each other when the screen rollers rotate.

[0008] Preferably, every four adjacent screen rollers in the large ball roller screen form a group, and the flaps belonging to each of the four screen rollers in each group are respectively in four different rotation positions in the cross-sectional direction.

[0009] Preferably, the height of the flap is slightly smaller than the gap between the rollers.

[0010] Preferably, the conveying direction of the shuttle feed belt and the conveying direction of the large ball roller screen are perpendicular to each other.

[0011] Preferably, the conveying direction of the large ball roller screen is parallel to the conveying direction of the receiving wide belt.

[0012] Preferably, the conveying direction of the large ball roller screen is opposite to the conveying direction of the receiving wide belt.

[0013] Preferably, the width of the large ball roller screen is equal to the width of the receiving wide belt.

[0014] Preferably, the flap is made of a rigid metal material and is integrally formed with the screen roller.

[0015] Preferably, a soft gasket is provided on the surface of the flap, and a non-slip texture is provided on the surface of the soft gasket.

[0016] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0017] In the utility model, a flap of a certain height is installed on each screen roller along the axial direction thereof, so that when the screen rollers are in synchronous operation, the flap can timely and continuously turn over the pellets stuck between the roller gaps to the return bin, thus preventing the screen rollers from getting stuck, effectively preventing the large ball roller screen from getting blocked, reducing the problem of manual cleaning, and improving the screening efficiency.

[0018] In the utility model, a soft gasket is arranged on the surface of the flap, and the surface of the soft gasket is arranged with an anti-slip texture, so that when the flap is turning over the pellets, the friction between the flap and the pellets can be increased, which is conducive to the stable turning over of the pellets and effectively solves the problem of blockage of the large ball roller screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0022] In the figure: 1. Shuttle feed belt; 2. Pellet roller screen; 3. Return bin; 4. Receiving wide belt; 5. Screen roller; 6. Flip plate. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0025] like Figure 1-3 As shown, the utility model provides a large ball roller screen which can prevent blocking, comprising a shuttle feed belt 1, a large ball roller screen 2, a return bin 3 and a wide receiving belt 4, the shuttle feed belt 1 is arranged directly above the large ball roller screen 2, the feed port of the return bin 3 is arranged on one side of the conveying end of the large ball roller screen 2, and the wide receiving belt 4 is arranged in parallel directly below the large ball roller screen 2, the large ball roller screen 2 comprises a plurality of synchronously rotating screen rollers 5, a roller gap is arranged between each adjacent two screen rollers 5, the outer wall of each screen roller 5 is respectively connected with a flap 6 along the axial direction, and when the plurality of screen rollers 5 rotate, the flaps 6 belonging to each of them do not interfere with each other.

[0026] like Figure 2 As shown, specifically, each adjacent four screen rollers 5 in the large ball roller screen 2 form a group, and the flaps 6 on the four screen rollers 5 in each group are respectively at four different rotation positions in the cross-sectional direction, and the flaps 6 on each screen roller 5 rotate and stay in a distributed manner, so that some of the screen rollers 5 are in a state where there is no flap 6 in the roller gap, and the roller gap is conducive to the screening and falling of pellets with smaller particle sizes.

[0027] In this embodiment, a roller gap is provided between two adjacent screen rollers 5, and the flap 6 rotates clockwise in the roller gap with the roller axis of the screen roller 5 as the center point, and the height value of the flap 6 is smaller than the gap value of the roller gap.

[0028] Specifically, the height of the flap 6 is slightly smaller than the roller gap between adjacent screen rollers 5 , so that the screen roller 5 does not rub or collide with the flap 6 when rotating, which is beneficial for the flap 6 to continuously flip the pellets.

[0029] In this embodiment, the conveying direction of the shuttle feed belt 1 and the conveying direction of the large ball roller screen 2 are perpendicular to each other.

[0030] In this embodiment, the conveying direction of the large ball roller screen 2 is parallel to the conveying direction of the receiving wide belt 4, the conveying direction of the large ball roller screen 2 is opposite to the conveying direction of the receiving wide belt 4, and the width value of the large ball roller screen 2 is equal to the width value of the receiving wide belt 4.

[0031] Specifically, the conveying direction of the large ball roller screen 2 is opposite to that of the receiving wide belt 4, so that the receiving wide belt 4 can transport the pellets passing through the roller gaps of the large ball roller screen 2 to a section opposite to the return bin 3, thereby facilitating the screening of the pellets in the next process.

[0032] In this embodiment, the flap 6 is made of a rigid metal material and is integrally formed with the screen roller 5. A soft gasket is provided on the surface of the flap 6, and an anti-slip texture is provided on the surface of the soft gasket. The purpose of the design is that the metal flap 6 can ensure stability during use, and the anti-slip texture on the soft gasket is conducive to ensuring that when the flap 6 flips the pellets, the friction between the contact with the pellets is increased, which is beneficial to the flipping of the pellets, effectively preventing the large ball roller screen 2 from being blocked, reducing manual cleaning, and improving screening efficiency.

[0033] The working principle and use process of the utility model are as follows: during the production process, the initial pellet material flows through the shuttle feed belt 1 and is transported to the top of the large ball roller screen 2, and falls between the screen rollers 5 on the large ball roller screen 2 as the belt rotates, and the pellets with smaller particle sizes fall onto the receiving wide belt 4 through the roller gaps, and then the rotation of the receiving wide belt 4 can transport the pellets passing through the roller gaps of the large ball roller screen 2 to a section opposite to the return bin 3, which is beneficial for the screening of the pellets with smaller particle sizes in the next process, and the pellets with larger particle sizes can be timely and continuously turned over to the return bin 3 by the flap 6 during the synchronous operation of the screen rollers 5, thereby preventing the screen roller 5 from getting stuck and preventing the large ball roller screen 2 from being blocked, effectively reducing the problem of manual cleaning and improving the screening efficiency.

[0034] In the present utility model, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used in this article includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0035] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0036] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A large ball roller screen that can prevent blocking, characterized in that: The invention comprises a shuttle feed belt (1), a large ball roller screen (2), a return bin (3) and a wide receiving belt (4), wherein the shuttle feed belt (1) is arranged directly above the large ball roller screen (2), the feed port of the return bin (3) is arranged on one side of the conveying end of the large ball roller screen (2), and the wide receiving belt (4) is arranged in parallel directly below the large ball roller screen (2), and the large ball roller screen (2) comprises a plurality of synchronously rotating screen rollers (5), a roller gap is arranged between each adjacent two of the screen rollers (5), and the outer wall of each of the screen rollers (5) is connected to a flap (6) along the axial direction, and when the plurality of screen rollers (5) rotate, the flaps (6) belonging to each of the screen rollers (5) do not interfere with each other.

2. The anti-blocking large ball roller screen according to claim 1 is characterized in that: Each of the four adjacent screen rollers (5) in the large ball roller screen (2) forms a group, and the flaps (6) on the four screen rollers (5) in each group are respectively located at four different rotation positions in the cross-sectional direction.

3. The anti-blocking large ball roller screen according to claim 1 is characterized in that: The height of the flap (6) is slightly smaller than the gap between the rollers.

4. The anti-blocking large ball roller screen according to claim 1 is characterized in that: The conveying direction of the shuttle feed belt (1) and the conveying direction of the large ball roller screen (2) are perpendicular to each other.

5. The anti-blocking large ball roller screen according to claim 1, characterized in that: The conveying direction of the large ball roller screen (2) and the conveying direction of the material receiving wide belt (4) are parallel to each other.

6. The anti-blocking large ball roller screen according to claim 5, characterized in that: The conveying direction of the large ball roller screen (2) is opposite to the conveying direction of the receiving wide belt (4).

7. The anti-blocking large ball roller screen according to claim 1, characterized in that: The width of the large ball roller screen (2) is equal to the width of the receiving wide belt (4).

8. The anti-blocking large ball roller screen according to claim 1, characterized in that: The flap (6) is made of a rigid metal material and is integrally formed with the screen roller (5).

9. The anti-blocking large ball roller screen according to claim 8, characterized in that: The surface of the flap (6) is provided with a soft gasket, and the surface of the soft gasket is provided with an anti-slip texture.

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