A square swing screen for high-precision fine screening

Abstract

The utility model discloses a square swing screen for high-precision fine screening, including support, the support is gantry structure, and four universal connecting rods are hoisted on the support, and the lower end between four universal connecting rods is fixed with sieve box, the middle position of sieve box is installed with driver, the inside of sieve box is provided with two groups of sieve screen subassembly of inclination setting, two groups of sieve screen subassembly are up and down settings, and the inclination direction of the sieve screen subassembly of one group on top is from left to right inclination, and the inclination direction of the sieve screen subassembly of one group below is from right to left inclination, and the upper end of sieve box's left side is provided with the upper distribution box, and the upper distribution box corresponds with the import of one group of sieve screen subassembly on top, and the upper end import of upper distribution box is connected with the feed tank, simple structure, easy operation, and the material is evenly distributed in multiple sieve surface, and the screening area is increased, and the screening output is improved. The sieve box body is cut down by laser, guarantees the hole and accuracy, can improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of square gyratory screen technology, specifically a square gyratory screen for high-precision fine screening. Background Technology

[0002] A square gyratory screen, also known as a reciprocating screen, uses a drive device that generates a vibration force that is an inertial force that changes in a regular pattern around a fixed axis. Essentially, this force is the reciprocating inertial force created by an eccentric block rotating around the fixed axis. After the screen starts, the screen body moves back and forth under the action of inertial force, causing the screen surface to oscillate periodically. This causes the material on the screen surface to move in a directional jumping motion along with the screen body. During this process, material smaller than the screen aperture falls through the screen holes to the lower layer, becoming undersize material. Material larger than the screen aperture is discharged from the discharge port after continuous tumbling and jumping motion, ultimately completing the screening process. Currently, with the continuous increase in production capacity and the expansion of production demands in modern industry, the required precision is becoming increasingly stringent, and existing equipment is far from meeting the needs of production enterprises. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a square gyratory screen for high-precision fine screening. This screen has a simple structure and is easy to operate, evenly distributing materials across multiple screen surfaces, increasing the screening area and improving screening output. The screen box is laser-cut to ensure the accuracy of the holes, thereby improving production efficiency and effectively solving the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a square gyratory screen for high-precision fine screening, comprising a support frame, the support frame being a gantry structure, and four universal joints suspended on the support frame. A screen box is fixed between the lower ends of the four universal joints. A driver is installed in the middle of the screen box. The screen box contains two sets of inclined screen assemblies, arranged vertically. The upper set of screen assemblies is inclined from left to right, and the lower set of screen assemblies is inclined from right to left. An upper distribution box is located on the upper left side of the screen box. The upper material distribution box corresponds to the inlet of a set of screen components above it. The upper inlet of the upper material distribution box is connected to a feed box. An upper material collection box is set on the right side of the screen box, which corresponds to the outlet of a set of screen components above it. A lower material distribution box is set on the right side of the screen box. The two inlets of the lower material distribution box are connected to the two outlets of the upper material collection box through conduits. The outlet of the lower material distribution box corresponds to the inlet of a set of screen components below it. A lower material collection box is set at the lower left side of the screen box. The inlet of the lower material collection box corresponds to the outlet of a set of screen components below it. The structures of the lower material collection box, the upper material collection box, and the lower material distribution box are the same.

[0005] Furthermore, the upper surface of the sieve box is provided with an opening, and a dustproof cover is sealed to the upper surface of the opening.

[0006] Furthermore, the screen assembly includes a screen frame with a U-shaped cross-section. A screen is inclinedly arranged at the upper end of the screen frame, and cleaning balls are evenly arranged between the inner bottom surface of the screen frame and the lower surface of the screen. A screen guide plate parallel to the screen is arranged at the lower end of each screen assembly.

[0007] Furthermore, one side of each of the upper material distribution box, lower material collection box, upper material collection box, and lower material distribution box is connected to the screen box via hinges, while the other side of each of the upper material distribution box, lower material collection box, upper material collection box, and lower material distribution box is fixed to the screen box via quick-release buckles, and the connection between each of the upper material distribution box, lower material collection box, upper material collection box, and lower material distribution box and the screen box is sealed with rubber sealing rings.

[0008] Compared with existing technologies, the beneficial effects of this utility model are as follows: The upper distribution box can evenly guide the raw material onto the upper surface of each screen of the upper set of screen components. The raw material undergoes a first screening through multiple screens. The oversize and undersize materials enter the two outlets of the upper collection box, and then are introduced into the lower distribution box. The lower distribution box evenly guides the raw material onto the upper surface of each screen of the lower set of screen components. Finally, the oversize and undersize materials are discharged from the lower collection box. The material undergoes two screenings, making the screening process faster. This square gyratory screen, used for high-precision fine screening, has a simple structure and is easy to operate. It evenly distributes the material across multiple screen surfaces, increasing the screening area and improving screening output. The screen body is laser-cut to ensure the accuracy of the holes, thus improving production efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; Figure 3 This is a schematic diagram of the right-side structure of this utility model.

[0010] In the diagram: 1 Feed box, 2 Upper distribution box, 3 Dustproof cover, 4 Support, 5 Universal connecting rod, 6 Screen box, 7 Driver, 8 Screen, 9 Screen frame, 10 Cleaning net, 11 Upper collection box, 12 Lower distribution box, 13 Lower collection box. Detailed Implementation

[0011] 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.

[0012] Please see Figure 1-3 This utility model provides a technical solution: a square gyratory screen for high-precision fine screening, including a support 4, which is a gantry structure, and four universal joints 5 are suspended on the support 4. A screen box 6 is fixed between the lower ends of the four universal joints 5. A driver 7 is installed in the middle of the screen box 6. The screen box 6 has two sets of inclined screen assemblies arranged vertically. The upper set of screen assemblies is inclined from left to right, and the lower set of screen assemblies is inclined from right to left. An upper distribution box 2 is provided on the upper left side of the screen box 6, which evenly distributes the raw materials. The upper distribution box 2 corresponds to the inlet of the upper set of screen assemblies. The upper feed box 2 is connected to the feed box 1 at its upper inlet. An upper feed collection box 11 is located on the right side of the screen box 6, corresponding to the outlet of a set of screen components above it. A lower feed box 12 is located on the right side of the screen box 6, with its two inlets connected to the two outlets of the upper feed collection box 11 via conduits. The outlet of the lower feed box 12 corresponds to the inlet of a set of screen components below it. A lower feed collection box 13 is located at the lower left end of the screen box 6, with its inlet corresponding to the outlet of a set of screen components below it. The lower feed collection box 13, upper feed collection box 11, and lower feed box 12 have the same structure. An opening is provided on the upper surface of the screen box 6, and the upper surface of this opening is sealed with a dustproof upper... Cover 3, the screen assembly includes a screen frame 9 with a U-shaped cross-section. A screen 8 is inclinedly mounted on the upper end of the screen frame 9, and cleaning balls 10 are evenly arranged between the inner bottom surface of the screen frame and the lower surface of the screen 8. Each screen assembly has a parallel undersize guide plate at its lower end. One side of the upper distribution box 2, lower collection box 13, upper collection box 11, and lower distribution box 12 are connected to the screen box 6 via hinges, while the other sides of the upper distribution box 2, lower collection box 13, upper collection box 11, and lower distribution box 12 are fixed to the screen box 6 via quick-release buckles. The connections between the upper distribution box 2, lower collection box 13, upper collection box 11, and lower distribution box 12 and the screen box 6 are sealed with rubber. The material is sealed in a ring. The upper distribution box 2 evenly guides the raw material onto the upper surfaces of the various screens 8 of the upper set of screen components. The material undergoes a first screening through multiple screens 8. The oversize and undersize materials enter the two outlets of the upper collection box 11, and then are introduced into the lower distribution box 12. The lower distribution box 12 evenly guides the raw material onto the upper surfaces of the various screens 8 of the lower set of screen components. Finally, the oversize and undersize materials are discharged from the lower collection box 13. The material undergoes two screening processes, making screening faster. This square gyratory screen, used for high-precision fine screening, has a simple structure and is easy to operate. It evenly distributes the material across multiple screen surfaces, increasing the screening area and improving screening output. The screen body is laser-cut to ensure the accuracy of the holes, thus improving production efficiency.

[0013] In use: The feed box 1 is connected to the external feed pipe. The upper distribution box 2 can evenly feed the raw material into the upper surface of each screen 8 of the upper set of screen components. The raw material is screened for the first time by multiple screens 8. The oversize and undersize materials enter the two outlets of the upper collection box 11 respectively, and then are fed into the lower distribution box 12. The lower distribution box 12 can evenly feed the raw material into the upper surface of each screen 8 of the lower set of screen components. Finally, the oversize and undersize materials after screening are discharged from the lower collection box 13. The material can be screened twice, making the screening faster.

[0014] 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.

Claims

1. A square gyratory screen for high-precision fine screening, comprising a support frame (4), characterized in that: The support (4) is a gantry structure, and four universal joints (5) are suspended on the support (4). A screen box (6) is fixed between the lower ends of the four universal joints (5). A driver (7) is installed in the middle of the screen box (6). The screen box (6) is equipped with two sets of inclined screen assemblies. The two sets of screen assemblies are arranged vertically. The upper set of screen assemblies is inclined from left to right, and the lower set of screen assemblies is inclined from right to left. An upper distribution box (2) is provided on the upper left side of the screen box (6). The upper distribution box (2) corresponds to the inlet of the upper set of screen assemblies. The upper inlet of the upper distribution box (2) is connected to an inlet valve. Material box (1), the screen box (6) is provided with an upper material collection box (11) on the right side, the upper material collection box (11) corresponds to the outlet of a set of screen components above, the screen box (6) is provided with a lower material distribution box (12) on the right side, the two inlets of the lower material distribution box (12) are connected to the two outlets of the upper material collection box (11) through conduits, and the outlet of the lower material distribution box (12) corresponds to the inlet of a set of screen components below, and the lower material collection box (13) is provided at the lower left side of the screen box (6), the inlet of the lower material collection box (13) corresponds to the outlet of a set of screen components below, the lower material collection box (13), the upper material collection box (11) and the lower material distribution box (12) have the same structure.

2. A square gyratory screen for high-precision fine screening according to claim 1, characterized in that: The upper surface of the sieve box (6) is provided with an opening, and a dustproof cover (3) is sealed to the upper surface of the opening.

3. A square gyratory screen for high-precision fine screening according to claim 1, characterized in that: The screen assembly includes a screen frame (9), the screen frame (9) has a U-shaped cross-section, the upper end of the screen frame (9) is inclined with a screen (8), and a cleaning ball (10) is evenly arranged between the inner bottom surface of the screen frame and the lower surface of the screen (8). The lower end of each screen assembly is provided with a screen guide plate parallel to it.

4. A square gyratory screen for high-precision fine screening according to claim 1, characterized in that: One side of the upper material distribution box (2), the lower material collection box (13), the upper material collection box (11), and the lower material distribution box (12) are all connected to the screen box (6) by hinges, while the other side of the upper material distribution box (2), the lower material collection box (13), the upper material collection box (11), and the lower material distribution box (12) are fixed to the screen box (6) by quick-release buckles, and the connection between the upper material distribution box (2), the lower material collection box (13), the upper material collection box (11), and the lower material distribution box (12) and the screen box (6) is sealed by rubber sealing rings.

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