Steel ball screening device

Abstract

The utility model provides a steel ball screening device, which belongs to the technical field of screening and comprises a frame. The screening box is used for screening materials, the screening box is installed on the machine frame through an elastic assembly, a screen is arranged on the top of the screening box, and a bottom baffle, a side face baffle and a top baffle which are used for preventing the materials from falling off are arranged on the side faces of the screen correspondingly; the screening box is further provided with a side face discharging opening and a bottom discharging opening. Due to the arrangement of the material receiving hopper, the effective screening area of the screen is increased. During screening, the steel balls and the steel forgings fall on the receiving hopper firstly, and the steel balls and the steel forgings are gradually scattered and fall on the screen in the downward rolling process; in this way, scattered steel balls and steel forgings directly fall on the higher end of the screen, the screening area is increased, and the screening effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, specifically to a steel ball screening device. Background Technology

[0002] The company's φ3.2*13M ball mill has a total internal loading capacity of approximately 130 tons of steel balls and forged steel. During major and minor equipment overhauls each year, screening these steel balls and forged steel requires 10 people and 5 days to complete each task. To reduce the workload for employees, the company plans to utilize its idle old vibrating screens to screen φ15-50mm steel balls and φ8-25mm steel forged steel, thereby reducing labor intensity.

[0003] However, two problems were discovered when using the old vibrating screen for screening:

[0004] (1) Steel balls and steel forgings come in various sizes and models, so six sets of screens are needed to completely screen them. When replacing them, a lot of bolts need to be removed, and the screens are positioned relatively high, which increases the difficulty and time required for screen replacement.

[0005] (2) When steel balls and steel forgings are poured onto the screen, in order to prevent them from falling out, they generally fall slightly below the top of the screen. When the steel balls or steel forgings are first poured onto the screen, they are relatively concentrated. By the time they disperse, they have basically reached the middle of the screen. In addition, the vibrating screen is not designed for screening steel balls and steel forgings, and the screen length is relatively limited, resulting in a small effective screening area. Incomplete screening is likely to occur after only one screening, requiring a second screening, which increases the screening time. Utility Model Content

[0006] This invention provides a steel ball screening device to solve the technical problems in the prior art.

[0007] To solve the above problems, the steel ball screening device provided by this utility model adopts the following technical solution:

[0008] Including racks;

[0009] A screening box is used for screening materials. The screening box is mounted on the frame by an elastic component. The top of the screening box is equipped with a screen, and the sides of the screen are respectively equipped with a bottom baffle, a side baffle, and a top baffle to prevent materials from falling. The screening box is also provided with a side discharge port and a bottom discharge port.

[0010] The vibration mechanism, which is mounted on the frame, is used to drive the screening box to vibrate.

[0011] The feature is that a load-bearing frame is fixedly installed on the side of the frame, and a receiving hopper for dispersing materials is fixedly installed on the load-bearing frame, so that the materials fall into the screen after being dispersed in the receiving hopper.

[0012] The side baffles are hinged to the front and rear sides of the screening box. A pressure plate for fixing the screen is fixedly installed on the side of the side baffles near the screen. Locking blocks for limiting the side baffles are rotatably connected to the bottom baffles and the top baffles.

[0013] As a further improvement, the lock block is also connected to a traction assembly for pulling the lock block to prevent the lock block from separating from the side baffle.

[0014] As a further improvement, the traction component is a torsion spring sleeved on the pivot of the locking block.

[0015] As a further improvement, the traction assembly is a spring, with one end of the spring connected to the locking block and the other end of the spring connected to the screening box.

[0016] As a further improvement, both the bottom baffle and the top baffle are rotatably connected with limiting blocks for limiting the locking block.

[0017] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0018] 1. This utility model increases the effective screening area of ​​the screen by setting up a receiving hopper. During screening, the steel balls and steel forgings will first fall into the receiving hopper, and gradually disperse and fall onto the screen as they roll downwards; in this way, the dispersed steel balls and steel forgings fall directly onto the higher end of the screen, increasing the screening area and improving the screening effect.

[0019] 2. The side baffles are hinged to the front and rear sides of the top of the screening box. When the side baffles are in a vertical position, the pressure plate will press tightly against the front and rear sides of the screen. When replacing the screen, simply rotate the locking block to release the restriction on the side baffles, flip the side baffles, and the screen can be replaced, simplifying the screen replacement steps.

[0020] 3. This utility model utilizes existing vibrating screens and improves upon them, reducing labor input during major and medium-scale equipment repairs, reducing labor intensity, and shortening the operation cycle. Attached Figure Description

[0021] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0022] Figure 1This is a schematic diagram of the steel ball screening device of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of part A;

[0024] Figure 3 This is a schematic diagram of the side baffle of the steel ball screening device of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 110. Frame; 120. Screening box; 121. Side discharge port; 122. Bottom baffle; 123. Bottom discharge port; 130. Side baffle; 131. Limiting block; 132. Locking block; 133. Pressure plate; 140. Vibration mechanism; 150. Elastic component; 160. Top baffle; 170. Screen; 210. Support frame; 220. Receiving hopper. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. 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 scope of protection of the present utility model.

[0028] Currently, during major and medium-scale equipment overhauls each year, screening steel balls and forgings in ball mills requires a significant amount of manpower and is labor-intensive. To reduce the labor intensity of employees and shorten the work cycle, we decided to utilize idle old vibrating screens for screening steel balls and forgings. However, since the existing vibrating screens are not designed for screening steel balls and forgings, problems such as time-consuming screen replacements and low screening efficiency due to a small effective screening area have arisen during the screening process.

[0029] To address the aforementioned problems, this invention first changes the way the screen is fixed. The side baffle is hinged to the screening box, and a pressure plate is welded to the inside of the side baffle. When the side baffle remains vertical, the pressure plate presses firmly against the screen, thus fixing it. When replacing the screen, rotating the locking block releases the restriction on the side baffle, while simultaneously rotating the L-shaped limiting block to restrict the locking block. Then, flipping the side baffle releases the restriction on the screen. This screen fixing method significantly reduces the problem of slow screen replacement speed. Although the screen fixing effect of this invention is not as good as bolt fixing, it is suitable for use in situations where vibrating screens are used less frequently.

[0030] By setting up a receiving hopper, during screening, the steel balls and steel forgings will first fall into the receiving hopper. As the steel balls and steel forgings roll downwards, they gradually disperse and fall onto the screen. In this way, the dispersed steel balls and steel forgings fall directly onto the higher end of the screen, increasing the screening area and improving the screening effect.

[0031] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0032] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0033] Example 1 of the steel ball screening device provided by this utility model:

[0034] like Figures 1-3 As shown, the device includes a frame 110 and a screening box 120 mounted on the frame 110 via an elastic component 150. The top of the screening box 120 is provided with a screen 170, and the sides of the screen 170 are respectively provided with a bottom baffle 122, a side baffle 130, and a top baffle 160 for preventing material from falling. The screening box 120 is also provided with a side discharge port 121 and a bottom discharge port 123.

[0035] Vibration mechanism 140, the frame 110 is also equipped with a vibration mechanism 140 for driving the screening box 120 to vibrate;

[0036] All of the above components are existing technologies, and their specific structures will not be described in detail here.

[0037] The side with the height of the screen 170 is defined as the right side. A load-bearing frame 210 is fixedly installed on the right side of the frame 110. After the load-bearing frame 210 is welded, it is fixed to the frame 110 with bolts for easy disassembly. A receiving hopper 220 for dispersing materials is fixedly installed on the load-bearing frame 210, so that the materials fall into the screen 170 after being dispersed in the receiving hopper 220.

[0038] The side baffle 130 is hinged to the front and rear sides of the screening box 120. A pressure plate 133 for fixing the screen 170 is fixedly installed on the side of the side baffle 130 near the screen 170. In other embodiments, a rubber gasket can be provided on the bottom surface of the pressure plate 133 to improve the fixing effect. Locking blocks 132 for limiting the side baffle 130 are rotatably connected to the bottom baffle 122 and the top baffle 160. Limiting blocks 131 for limiting the locking blocks 132 are rotatably connected to the bottom baffle 122 and the top baffle 160.

[0039] The locking block 132 is also connected to a traction assembly for pulling the locking block 132 to prevent the locking block 132 from separating from the side baffle 130. In this embodiment, the traction assembly is a torsion spring sleeved on the rotating shaft of the locking block 132. Under normal conditions, the locking block 132 remains horizontal due to the force of the torsion spring, limiting the side baffle 130. When it is necessary to release the limit, the locking block 132 is limited by the L-shaped limit block 131 to prevent the other locking block 132 from resetting due to the action of the torsion spring when one of the locking blocks 132 is rotated.

[0040] Example 2 of the steel ball screening device provided by this utility model:

[0041] Its main difference from Example 1 is:

[0042] In this embodiment, the traction component is a spring, one end of which is connected to the locking block, and the other end of which is connected to the screening box.

[0043] Example 3 of the steel ball screening device provided by this utility model:

[0044] Its main difference from Example 1 is:

[0045] In this embodiment, a rubber pad is attached to the inner wall of the screening box to reduce damage to the screening box caused by steel balls or steel forgings.

[0046] While this specification has shown and described numerous embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A steel ball screening device, comprising: Rack (110); A screening box (120) is used for screening materials. The screening box (120) is mounted on the frame (110) via an elastic component (150). The top of the screening box (120) is provided with a screen (170). The sides of the screen (170) are respectively provided with a bottom baffle (122), a side baffle (130) and a top baffle (160) to prevent materials from falling. The screening box (120) is also provided with a side discharge port (121) and a bottom discharge port (123). Vibration mechanism (140), which is mounted on frame (110), is used to drive the screening box (120) to vibrate; The feature is that a load-bearing frame (210) is fixedly installed on the side of the frame (110), and a receiving hopper (220) for dispersing materials is fixedly installed on the load-bearing frame (210), so that the materials fall into the screen (170) after being dispersed in the receiving hopper (220). The side baffle (130) is hinged to the front and rear sides of the screening box (120) by hinges. A pressure plate (133) for fixing the screen (170) is fixedly installed on the side of the side baffle (130) near the screen (170). Locking blocks (132) for limiting the side baffle (130) are rotatably connected on the bottom baffle (122) and the top baffle (160).

2. The steel ball screening device according to claim 1, characterized in that: The locking block (132) is also connected to a traction assembly for pulling the locking block (132) to prevent the locking block (132) from separating from the side baffle (130).

3. The steel ball screening device according to claim 2, characterized in that: The traction component is a torsion spring sleeved on the shaft of the locking block (132).

4. The steel ball screening device according to claim 2, characterized in that: The traction component is a spring, one end of which is connected to the locking block (132), and the other end of which is connected to the screening box (120).

5. The steel ball screening device according to any one of claims 1-4, characterized in that: Both the bottom baffle (122) and the top baffle (160) are rotatably connected to a limiting block (131) for limiting the locking block (132).

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