A screening device for magnesite production

Abstract

The utility model discloses a screening device for magnesite production relates to screening equipment technical field, including box, primary screen cloth, secondary screen cloth, a pair of rotary plate, a pair of pivot, screen cloth and driving part, the box supports through the supporting leg, primary screen cloth and secondary screen cloth are arranged respectively horizontally and vertically in the box, and the mesh of primary screen cloth is greater than the mesh of secondary screen cloth, the position of the left and right side wall of the box and corresponding primary screen cloth and secondary screen cloth is equipped with the limiting mouth, and primary screen cloth and secondary screen cloth are respectively horizontal movable and pass through the limiting mouth, the utility model discloses the force of driving part can act simultaneously in both sides of screen cloth, and through the double limiting of screen cloth and limiting hole and slider and sliding mouth, guarantee the stability of screen cloth in the work, reduce the maintenance and maintenance frequency, save the cost, improve work efficiency.

Description

Technical Field

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

[0002] Magnesia is an important basic raw material for refractory materials, widely used in metallurgy, building materials, chemical and other industries. In the production process of magnesia, the lumpy magnesia formed after calcination needs to undergo crushing and screening processes to obtain products of different particle sizes to meet downstream application requirements. Among these, the screening process is a key step in ensuring product quality (uniform particle size distribution) and production efficiency.

[0003] Currently, vibrating screens are commonly used in magnesia production lines to classify the crushed magnesia by particle size. These devices typically rely on a motor to drive an eccentric block or vibrator to generate high-frequency vibration or excitation force, causing the inclined or horizontally placed screen to vibrate. The material jumps and moves forward on the screen, and fine particles pass through the screen to achieve classification.

[0004] However, existing vibrating screening equipment has some drawbacks: In the existing technology, the vibration system generally uses a combination of vibrator and spring, and some equipment uses a combination of motor, cam and spring. However, their drive is generally at a certain point on the screen. For example, the vibrator generally acts on one side wall of the screen, and the motor drives the cam to act on the bottom of the screen or a certain side wall. After long-term operation, the stability of the drive decreases significantly, and regular maintenance is frequent, which affects work efficiency. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a screening device for magnesia production. The driving force can act simultaneously on both sides of the screen, and the screen's stability during operation is ensured through dual limiting of the screen and limiting holes, and the slider and sliding mouth. This reduces the frequency of maintenance and repairs, saves costs, and improves work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for magnesia production, comprising a housing, a primary screen, a secondary screen, a pair of rotating plates, a pair of rotating shafts, screens, and a driving component. The housing is supported by support legs. The primary and secondary screens are horizontally arranged and vertically aligned within the housing. The mesh size of the primary screen is larger than that of the secondary screen. Limiting openings are provided on the left and right side walls of the housing, corresponding to the positions of the primary and secondary screens. The primary and secondary screens are horizontally movable through the limiting openings. A pair of fixed plates are provided on the left and right sides of the primary and secondary screens, respectively. A long rod is provided between each pair of fixed plates. Compensation openings are provided on the upper and lower sides of the pair of rotating plates. The pair of rotating plates are connected through the compensation openings. The rotating plate and the fixed plate are respectively installed on the long rods on the left and right sides, which pass through the compensation port and can move within the compensation port. The outer side wall of the box is provided with protective covers on the left and right sides. The protective covers cover the rotating plate and the fixed plate inside. The two ends of each long rod are horizontally slidably connected to the protective cover by sliding parts. One end of a pair of rotating shafts is fixedly connected to the side wall of the rotating plate on the left and right sides respectively, and the other end passes through the protective cover and is rotatably connected to the protective cover by bearings. The driving component is provided on the rear side wall of the box and can perform reciprocating driving work. The driving component can drive the pair of rotating shafts to rotate synchronously and in the same direction. The top of the box is provided with a feed port. The rear side wall of the box is provided with a discharge port corresponding to the position of the primary screen and the secondary screen. The bottom center of the box is provided with a discharge port.

[0007] Preferably, the driving component includes a cylinder, a pair of racks and a pair of gears. The pair of gears are respectively disposed at the through ends of a pair of rotating shafts. A support plate is fixed below the gears corresponding to the protective cover. A movable plate is disposed on the support plate via a slide rail assembly. The pair of racks are fixedly disposed on both sides of the movable plate. The racks are meshed with the gears. The cylinder is fixedly disposed on the side wall of the housing. The telescopic end of the cylinder is fixedly connected to the movable plate and can drive the movable plate to move horizontally.

[0008] Preferably, the sliding member includes a slider, the end of each long rod is fixedly connected to the slider, the protective cover has a sliding opening at the position corresponding to the slider, and the slider is horizontally slidably connected to the sliding opening.

[0009] Preferably, baffles are fixedly provided at the connection between the primary screen and the fixed plate and at the connection between the secondary screen and the fixed plate.

[0010] Preferably, the left and right side walls of the housing and the two sides corresponding to the rotating plate are respectively provided with limiting plates, and the rotating shaft rotates through the limiting plates.

[0011] This utility model provides a screening device for magnesia production, which has the following advantages: 1. In this utility model, the force of the driving component can act on both sides of the screen at the same time, and the screen is guaranteed to be stable during operation through the double limiting of the screen and the limiting hole and the slider and the sliding mouth, thereby reducing the number of repairs and maintenance, saving costs, and improving work efficiency. 2. A baffle is provided between the screen and the fixed plate of this utility model to prevent excessive displacement of the screen due to failure of the driving component, thus providing a protective function; a limiting plate supports the rotating shaft to ensure the stability of the rotating shaft during operation. Attached Figure Description

[0012] Figure 1 This is a front sectional view of a screening device for magnesia production according to the present invention; Figure 2 This is a front view of a screening device for magnesia production according to the present invention; Figure 3 This utility model Figure 1 Top view of section AA.

[0013] In the diagram: 1. Long rod; 2. Rotating shaft; 3. Limiting plate; 4. Primary screen; 5. Feed inlet; 6. Discharge outlet; 7. Baffle; 8. Compensation port; 9. Fixing plate; 10. Box body; 11. Secondary screen; 12. Discharge outlet; 13. Support leg; 14. Rotating plate; 15. Protective cover; 16. Sliding block; 17. Sliding port; 18. Support plate; 19. Slide rail assembly; 20. Limiting port; 21. Moving plate; 22. Rack; 23. Gear; 24. Cylinder; 25. Support plate. Detailed Implementation

[0014] 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.

[0015] like Figure 1-3As shown, a screening device for magnesia production includes a housing 10, a primary screen 4, a secondary screen 11, a pair of rotating plates 14, a pair of rotating shafts 2, screens, and a driving component. The housing 10 is supported by support legs 13. The primary screen 4 and the secondary screen 11 are horizontally arranged and vertically aligned within the housing 10. The mesh size of the primary screen 4 is larger than that of the secondary screen 11. Limiting openings 20 are provided on the left and right side walls of the housing 10, corresponding to the positions of the primary screen 4 and the secondary screen 11. The primary screen 4 and the secondary screen 11 are horizontally movable through the limiting openings 20. A pair of fixing plates 9 are respectively provided on the left and right sides of the primary screen 4 and the secondary screen 11. Each pair of fixing plates 9... A long rod 1 is provided between the two sides of a pair of rotating plates 14, with compensation ports 8 on the upper and lower sides respectively. The pair of rotating plates 14 are respectively mounted on the long rod 1 on the left and right sides through the compensation ports 8. The long rod 1 passes through the compensation port 8 and can move within the compensation port 8. Protective covers 15 are provided on the left and right sides of the outer wall of the housing 10. The protective covers 15 cover the rotating plates 14 and the fixed plate 9. The two ends of each long rod 1 are horizontally slidably connected to the protective cover 15 by sliding parts. One end of a pair of rotating shafts 2 is fixedly connected to the side wall of the rotating plates 14 on the left and right sides respectively, and the other end passes through the protective cover 15 and is rotatably connected to the protective cover 15 by bearings. The driving component is provided on the rear side wall of the housing 10 and the driving component can... The drive unit is capable of reciprocating drive operation, and the drive component can synchronously and in the same direction drive a pair of rotating shafts 2 to rotate. The top of the housing 10 is provided with a feed inlet 5, and the rear side wall of the housing 10 is provided with a discharge outlet 6 corresponding to the position of the primary screen 4 and the secondary screen 11. The bottom center of the housing 10 is provided with a discharge outlet 12. The drive component includes a cylinder 24, a pair of racks 22 and a pair of gears 23. The pair of gears 23 are respectively provided at the through ends of the pair of rotating shafts 2. The protective cover 15 is fixed with a support plate 18 below the gears 23. A movable plate 21 is provided on the support plate 18 through a slide rail assembly 19. The pair of racks 22 are fixedly provided on both sides of the movable plate 21. The cylinder 24 is fixedly mounted on the side wall of the housing 10 and meshes with the gear 23. The telescopic end of the cylinder 24 is fixedly connected to the moving plate 21 and can drive the moving plate 21 to move horizontally. The sliding member includes a slider 16. The end of each long rod 1 is fixedly connected to the slider 16. The protective cover 15 has a sliding opening 17 corresponding to the position of the slider 16. The slider 16 and the sliding opening 17 are horizontally slidably connected. The connection between the primary screen 4 and the fixed plate 9 and the connection between the secondary screen 11 and the fixed plate 9 are respectively fixedly provided with baffles 7. The left and right side walls of the housing 10 and the two sides corresponding to the rotating plate 14 are respectively provided with limit plates 3. The rotating shaft 2 rotates through the limit plates 3.

[0016] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows: According to the instruction manual Figure 1-3As can be seen, when this utility model is working, material is fed into the feed port 5 of the box 10, and the drive unit is activated. The drive unit can drive the rotating shafts 2 on the left and right sides to rotate synchronously and in the same direction. The rotation of the rotating shafts 2 drives a pair of rotating plates 14 to rotate. Since the rotation direction is the same, and the long rods 1 on the same side pass through the compensation ports 8 on the upper and lower sides of the rotating plates 14 respectively, assuming that the pair of rotating plates 14 rotate clockwise, they can simultaneously drive the upper long rod 1, the fixed plate 9 and the primary screen 4 to move to the right, and at the same time, drive the lower long rod 1, the fixed plate 9 and the secondary screen 11 to move to the left. Conversely, assuming that the drive unit drives the pair of rotating plates 14 to rotate counterclockwise, it can simultaneously drive the upper long rod 1, the fixed plate 9 and the primary screen 4 to move to the left, and at the same time, drive the lower long rod 1, the fixed plate 9 and the secondary screen 11 to move to the right. Through the reciprocating drive of the drive unit, the primary screen 4 and the secondary screen 11 are driven to rotate. The device moves rapidly back and forth horizontally to achieve the purpose of screening, with materials of different coarseness discharged from the discharge port 6 and the outlet 12 respectively. In this invention, since the primary screen 4 and the secondary screen 11 slide horizontally within the limiting port 20, and the long rod 1 slides horizontally with the protective cover 15 through the sliding component, the stability of the primary screen 4 and the secondary screen 11 during operation is ensured. Moreover, the force of the driving component can act simultaneously on both sides of the primary screen 4 and the secondary screen 11, ensuring stable driving and further guaranteeing the stability of the primary screen 4 and the secondary screen 11 during operation, reducing the number of repairs and maintenance, saving costs, and improving work efficiency. The long rod 1 and the rotating plate 14 in this invention are made of wear-resistant and high-strength metal materials. Since the left and right sides are driven simultaneously, the design needs to consider the error, and synchronous driving can be achieved within the allowable error range. In addition, the sliding fit between the primary screen 4 and the secondary screen 11 and the housing 10 also needs to consider the sealing effect to ensure that the material does not leak out from the limiting port 20.

[0017] The driving components include a cylinder 24, a pair of racks 22, and a pair of gears 23. The pair of gears 23 are respectively set at the through ends of a pair of rotating shafts 2. A support plate 18 is fixed below the gears 23 on the protective cover 15. A movable plate 21 is set on the support plate 18 through a slide rail assembly 19. The pair of racks 22 are fixed on both sides of the movable plate 21. The racks 22 are meshed with the gears 23. The cylinder 24 is fixed on the side wall of the housing 10. During operation, the extension end of the cylinder 24 drives the movable plate 21 to move horizontally and reciprocally, thereby driving the gears 23 and rotating shafts 2 to rotate through the racks 22. The meshing transmission effect of the gears 23 and racks 22 is stable. As long as the design error is within a certain range, the synchronous rotation of the two rotating shafts 2 can be achieved.

[0018] The sliding component includes a slider 16, with the end of each long rod 1 fixedly connected to the slider 16. The protective cover 15 has a sliding opening 17 at the position corresponding to the slider 16. The slider 16 and the sliding opening 17 are horizontally slidably connected. The structure is simple and ensures the stability of the horizontal movement of the long rod 1.

[0019] Among them, baffles 7 are fixedly installed at the connection between the primary screen 4 and the fixed plate 9 and the connection between the secondary screen 11 and the fixed plate 9, respectively, to prevent the screen displacement from being too large due to the failure of the driving component, and to provide protection.

[0020] Limiting plates 3 are respectively provided on the left and right side walls of the housing 10 and on both sides of the rotating plate 14. The rotating shaft 2 passes through the limiting plates 3 to support the rotating shaft 2 and ensure the stability of the rotating shaft 2 during operation.

[0021] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for magnesia production, characterized in that, The system includes a housing (10), a primary screen (4), a secondary screen (11), a pair of rotating plates (14), a pair of rotating shafts (2), screens, and a driving component. The housing (10) is supported by support legs (13). The primary screen (4) and the secondary screen (11) are horizontally arranged and vertically aligned inside the housing (10). The mesh size of the primary screen (4) is larger than that of the secondary screen (11). The left and right sidewalls of the housing (10) correspond to the primary screen (4) and the secondary screen (11). A limiting opening (20) is provided at the position of the screen (11). The primary screen (4) and the secondary screen (11) are horizontally movable through the limiting opening (20). A pair of fixing plates (9) are provided on the left and right sides of the primary screen (4) and the secondary screen (11). A long rod (1) is provided between each pair of fixing plates (9). A pair of rotating plates (14) are provided with compensation openings (8) on the upper and lower sides. The pair of rotating plates (14) are connected to the long rods (1) on the left and right sides through the compensation openings (8). On the box (10), a long rod (1) passes through the compensation port (8) and can move within the compensation port (8). Protective covers (15) are provided on the left and right sides of the outer wall of the box (10). The protective covers (15) enclose the rotating plate (14) and the fixed plate (9). Both ends of each long rod (1) are horizontally slidably connected to the protective cover (15) via sliding parts. One end of a pair of rotating shafts (2) is fixedly connected to the side walls of the rotating plate (14) on the left and right sides respectively, and the other end passes through the protective cover (15). The protective cover (15) is rotatably connected by a bearing. The drive component is located on the rear side wall of the box (10) and can perform reciprocating drive work. The drive component can drive a pair of rotating shafts (2) to rotate synchronously and in the same direction. The top of the box (10) is provided with a feed inlet (5). The rear side wall of the box (10) is provided with a discharge outlet (6) corresponding to the position of the first-stage screen (4) and the second-stage screen (11). The bottom center of the box (10) is provided with a discharge outlet (12).

2. The screening device for magnesia production according to claim 1, characterized in that, The driving component includes a cylinder (24), a pair of racks (22) and a pair of gears (23). The pair of gears (23) are respectively disposed at the through ends of a pair of rotating shafts (2). The protective cover (15) is fixed with a support plate (18) below the gears (23). A movable plate (21) is disposed on the support plate (18) via a slide rail assembly (19). The pair of racks (22) are fixedly disposed on both sides of the movable plate (21). The racks (22) are meshed with the gears (23). The cylinder (24) is fixedly disposed on the side wall of the housing (10). The telescopic end of the cylinder (24) is fixedly connected to the movable plate (21) and can drive the movable plate (21) to move horizontally.

3. A screening device for magnesia production according to claim 1, characterized in that, The sliding component includes a slider (16), the end of each long rod (1) is fixedly connected to the slider (16), and the protective cover (15) has a sliding opening (17) at the position corresponding to the slider (16). The slider (16) and the sliding opening (17) are horizontally slidably connected.

4. A screening device for magnesia production according to claim 1, characterized in that, Baffles (7) are fixedly installed at the connection between the primary screen (4) and the fixed plate (9) and at the connection between the secondary screen (11) and the fixed plate (9).

5. A screening device for magnesia production according to claim 1, characterized in that, Limiting plates (3) are respectively provided on the left and right side walls of the box (10) and on both sides of the rotating plate (14), and the rotating shaft (2) rotates through the limiting plates (3).

Images