Screening equipment for high-purity magnesia production

Abstract

The screening equipment for high-purity magnesia production comprises a screening box, flow guide plates are fixedly connected to the tops of the two sides of the screening box, a grinding assembly is fixedly connected to the position, located below the flow guide plates, of an inner cavity of the screening box, and a screening assembly is fixedly connected to the position, located below the grinding assembly, of the inner cavity of the screening box. According to the high-purity magnesia grinding device, the grinding assembly is adopted for grinding high-purity magnesia, the grinding distance between the two grinding rollers can be adjusted through stretching out of a double-output-shaft hydraulic telescopic rod, and therefore the grinding fineness can be adjusted, after the ground high-purity magnesia enters an inner cavity of a screen, a cam can be driven to rotate by starting a second motor, and the grinding precision is improved. The screening function is achieved, the multi-stage screening effect can be achieved by arranging the three layers of filter sieves, so that the purification accuracy can be guaranteed, and after screening is completed, materials left after screening of each layer can be rapidly discharged by inclining the screen cloth.

Description

Technical Field

[0001] The invention relates to the technical field of high-purity magnesia production, in particular to screening equipment for high-purity magnesia production. Background Art

[0002] High-purity magnesia is made by flotation purification of natural special-grade magnesite ore, and then through light burning, fine grinding, ball pressing, and sintering. It has the characteristics of high purity and good bulk density, and is a high-quality raw material for brick making and amorphous refractory materials. The production process of high-purity magnesia requires screening of the material, and a screening machine is needed at this time. The screening machines currently available on the market can basically only perform one screening and cannot achieve multi-layer screening. At the same time, they cannot achieve the grinding function. Grinding is required before screening, which reduces the screening efficiency. Therefore, it is necessary to design a screening equipment with grinding and multi-stage screening functions. Summary of the Invention

[0003] The object of the present invention is to provide a screening device for high-purity magnesia production, which has the advantage of being easy to use and solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a screening device for producing high-purity magnesia, comprising a screening box, guide plates fixedly connected to the tops of both sides of the screening box, a grinding assembly fixedly connected to the inner cavity of the screening box below the guide plates, and a screening assembly fixedly connected to the inner cavity of the screening box below the grinding assembly; The grinding assembly includes a first chute and a second chute opened on the front wall and the rear wall of the inner cavity of the screening box, the inner cavities of the first chute and the second chute are fixedly connected to the double-output shaft hydraulic telescopic rod, both ends of the double-output shaft hydraulic telescopic rod are fixedly connected to the connecting plate, a grinding roller is fixedly connected between the front and rear connecting plates, a first motor is fixedly connected to the surface of the connecting plate located in the inner cavity of the first chute, the output shaft of the first motor is fixedly connected to one end of the grinding roller, the other end of the first motor passes through the outside of the screening box, the top and bottom of the first motor are fixedly connected to the mounting plate, and the mounting plate is slidably connected to the back side of the screening box; The transmission mechanism that this second end is connected with this second gear train is that the transmission mechanism that this second gear train is connected with this second gear train is that the transmission mechanism that this second gear train is connected with this second gear train is that the transmission mechanism that this second gear train is connected with this second gear train is that the transmission mechanism that this second gear train is connected with this second gear train is that

[0005] Preferably, the top axis of the screening box is connected to a feed pipe, and the bottom axis of the screening box is connected to a discharge pipe.

[0006] Preferably, the four corners of the bottom of the screening box are fixedly connected with supporting legs, and the bottoms of the supporting legs are provided with anti-slip grooves.

[0007] Preferably, a controller is fixedly connected to the surface of the screening box, and the controller is electrically connected to the electrical equipment through a wire.

[0008] Preferably, an accommodating groove is provided on the inner wall of the first sliding groove, and a shielding plate is provided in the inner cavity of the accommodating groove, and the other side of the shielding plate is fixedly connected to the surface of the connecting plate.

[0009] Preferably, limiting grooves are provided on the back of the screening box and on the upper and lower sides of the first motor, the inner cavity of the limiting groove is slidably connected to a limiting block, and the other end of the limiting block is fixedly connected to the surface of the mounting plate.

[0010] Preferably, a solenoid valve is fixedly connected to the back of the screen, and a three-layer filter screen is fixedly connected to the inner cavity of the screen.

[0011] Preferably, an anti-slip block is fixedly connected to the top of the sliding rod, and the diameter of the anti-slip block is larger than the outer diameter of the sliding rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention grinds high-purity magnesia sand by adopting a grinding assembly, and the grinding distance between the two grinding rollers can be adjusted by extending the double-output shaft hydraulic telescopic rod, thereby realizing the adjustment of the grinding fineness. After the ground high-purity magnesia sand enters the inner cavity of the screen, the cam can be driven to rotate by starting the second motor to realize the screening function. By setting a three-layer filter screen, the multi-stage screening effect can be achieved, thereby ensuring the accuracy of purification, and after the screening is completed, the screen can be tilted to quickly discharge the remaining materials in each layer.

[0013] 2. The present invention can facilitate the feeding work by providing a feed pipe, can facilitate the discharging work by providing a discharge pipe, can ensure the stability of the equipment by providing support legs, can realize automatic control of the equipment by providing a controller, can shield the first slide groove by providing a receiving groove and a shielding plate, can ensure the airtightness of the screening box, can make the mounting plate move left and right smoothly by providing a limit groove and a slider, can prevent the connecting block from detaching from the slide rod by providing an anti-detachment block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a rear view schematic diagram of the structure of the present invention; Figure 3 This is a schematic cross-sectional view of the structure of the present invention; Figure 4 It is a schematic top view and cross-sectional view of the structure of the present invention; Figure 5 It is a three-dimensional schematic diagram of the screen of the present invention; Figure 6 This is a rear perspective schematic diagram of the screen of the present invention; Figure 7 It is a schematic sectional view of the main view of the screen of the present invention.

[0015] In the figure: 1. screening box; 2. guide plate; 3. first chute; 4. second chute; 5. dual-output shaft hydraulic telescopic rod; 6. connecting plate; 7. grinding roller; 8. first motor; 9. mounting plate; 10. second motor; 11. cam; 12. screen; 13. connecting block; 14. mounting slot; 15. second hydraulic telescopic rod; 16. fixing plate; 17. sliding rod; 18. fixing block; 19. spring; 20. controller; 21. receiving slot; 22. shielding plate; 23. limit slot; 24. solenoid valve. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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] The components of the present invention are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. Example 1:

[0018] See also Figure 1-Figure 7 In order to achieve the purpose of grinding, this embodiment provides the following technical solutions, specifically disclosing: a screening device for high-purity magnesia production, comprising a screening box 1, with guide plates 2 fixedly connected to the tops of both sides of the screening box 1, a grinding assembly fixedly connected to the inner cavity of the screening box 1 and located below the guide plates 2, and a screening assembly fixedly connected to the inner cavity of the screening box 1 and located below the grinding assembly; The grinding assembly includes a first chute 3 and a second chute 4 opened on the front and rear walls of the inner cavity of the screening box 1. The inner cavities of the first chute 3 and the second chute 4 are fixedly connected with a double-output shaft hydraulic telescopic rod 5, and both ends of the double-output shaft hydraulic telescopic rod 5 are fixedly connected with a connecting plate 6. A grinding roller 7 is fixedly connected between the front and rear connecting plates 6. The surface of the connecting plate 6 located in the inner cavity of the first chute 3 is fixedly connected with a first motor 8. The output shaft of the first motor 8 is fixedly connected to one end of the grinding roller 7. The other end of the first motor 8 passes through the outside of the screening box 1. The top and bottom of the first motor 8 are fixedly connected with a mounting plate 9, and the mounting plate 9 is slidably connected to the back of the screening box 1. The top axis of the screening box 1 is connected with a feed pipe, and the axis of the bottom of the screening box 1 is connected with a discharge pipe. The four corners of the bottom of the screening box 1 are fixedly connected with legs, and the bottom of the legs is provided with anti-slip grooves. The surface of the screening box 1 is fixedly connected with a controller 2 0, the controller 20 is electrically connected to the electrical equipment through a wire, and a receiving slot 21 is provided on the inner wall of the first chute 3, and a baffle 22 is provided in the inner cavity of the receiving slot 21, and the other side of the baffle 22 is fixedly connected to the surface of the connecting plate 6, and a limiting slot 23 is provided on the back of the screening box 1 and on the upper and lower sides of the first motor 8, and the inner cavity of the limiting slot 23 is slidably connected to the limiting block, and the other end of the limiting block is fixedly connected to the surface of the mounting plate 9. By providing a feeding pipe, the feeding work can be facilitated, and by providing a discharging pipe, the discharging work can be facilitated. By providing support legs, the stability of the device can be guaranteed, and by providing a controller 20, the automatic control of the device can be realized. By providing the receiving slot 21 and the baffle 22, the first chute 3 can be blocked, and the airtightness of the screening box 1 can be guaranteed. By providing the limiting slot 23 and the slider, the mounting plate 9 can be moved left and right smoothly. Example 2:

[0019] See also Figure 1-Figure 7In order to achieve the purpose of multi-stage screening, the present embodiment provides the following technical solutions, which specifically disclose: the screening assembly includes a second motor 10 fixedly connected to both sides of the back of the screening box 1, the output shaft of the second motor 10 passes through the inner cavity of the screening box 1 and is fixedly connected to a transmission shaft, the other end of the transmission shaft is fixedly connected to the inner wall of the screening box 1 through a bearing, the front and rear ends of the transmission shaft are fixedly connected to cams 11, a screen 12 is provided on the top of the cam 11, the front ends of both sides of the screen 12 are movably connected to connecting blocks 13 through a rotating shaft, the rear end of the inner cavity of the connecting block 13 is provided with a mounting groove 14, the inner cavity of the mounting groove 14 is movably connected to a second hydraulic telescopic rod 15 through a pin shaft, and the top of the second hydraulic telescopic rod 15 is movably connected to the second hydraulic telescopic rod 15 through a pin shaft. The shaft is movably connected with a fixed plate 16, one side of the fixed plate 16 is fixedly connected to the surface of the screen 12, and sliding rods 17 are provided at both ends of the inner cavity of the connecting block 13. The bottom of the sliding rod 17 is fixedly connected to a fixed block 18, and one side of the fixed block 18 is fixedly connected to the inner wall of the screening box 1. The surface of the sliding rod 17 is sleeved with a spring 19, and the two ends of the spring 19 are fixedly connected to the surfaces of the fixed block 18 and the connecting block 13 respectively. The back of the screen 12 is fixedly connected with a solenoid valve 24, and the inner cavity of the screen 12 is fixedly connected with a three-layer filter screen. The top of the sliding rod 17 is fixedly connected with an anti-falling block. The diameter of the anti-falling block is larger than the outer diameter of the sliding rod 17. By providing an anti-falling block, the connecting block 13 can be prevented from detaching from the sliding rod 17.

[0020] The control method of the present invention is automatic control through the controller 20. The control circuit of the controller 20 can be implemented by simple programming by technicians in this field, which is common knowledge in the field. Moreover, the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail.

[0021] During use, by starting the dual-output shaft hydraulic telescopic rod 5, the connecting plate 6 can be driven to move, and the connecting plate 6 can drive the grinding roller 7 to move, so that the distance between the two grinding rollers 7 can be adjusted, and then the fineness of the raw material grinding can be adjusted. Then the raw material enters the inner cavity of the screening box 1 through the feed pipe, and the first motor 8 can be started. The first motor 8 drives the grinding roller 7 to rotate so that the raw material can be ground, and the ground raw material enters the inner cavity of the screen 12 and is driven by the started second motor 10 to rotate the cam 11. The cam 11 can drive the screen 12 to reciprocate up and down to realize the screening function, and the screened raw material can be discharged through the discharge pipe. After the screening is completed, the cam 11 is rotated to a horizontal state. At this time, the second hydraulic telescopic rod 15 can be retracted. The second hydraulic telescopic rod 15 can drive the rear end of the screen 12 to move downward through the fixed plate 16, so that the screen 12 is tilted. At this time, the discharge of the residual material can be completed by opening the solenoid valve 24 in sequence.

[0022] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing high-purity magnesia, comprising a screening box (1), characterized in that: The tops of both sides of the screening box (1) are fixedly connected to guide plates (2), the inner cavity of the screening box (1) and located below the guide plates (2) are fixedly connected to a grinding assembly, and the inner cavity of the screening box (1) and located below the grinding assembly are fixedly connected to a screening assembly; The grinding assembly comprises a first chute (3) and a second chute (4) which are provided on the front wall and the rear wall of the inner cavity of the screening box (1); the inner cavities of the first chute (3) and the second chute (4) are both fixedly connected with a double-output-shaft hydraulic telescopic rod (5); both ends of the double-output-shaft hydraulic telescopic rod (5) are fixedly connected with a connecting plate (6); a grinding roller (7) is fixedly connected between the front and rear connecting plates (6); a first motor (8) is fixedly connected to the surface of the connecting plate (6) located in the inner cavity of the first chute (3); the output shaft of the first motor (8) is fixedly connected to one end of the grinding roller (7); the other end of the first motor (8) extends to the outside of the screening box (1); the top and bottom of the first motor (8) are both fixedly connected with a mounting plate (9); the mounting plate (9) is slidably connected to the back of the screening box (1); The screening assembly comprises a second motor (10) fixedly connected to both sides of the back of the screening box (1); the output shaft of the second motor (10) penetrates the inner cavity of the screening box (1) and is fixedly connected to a transmission shaft; the other end of the transmission shaft is fixedly connected to the inner wall of the screening box (1) via a bearing; the front and rear ends of the transmission shaft are fixedly connected to cams (11); a screen (12) is provided on the top of the cam (11); the front ends of both sides of the screen (12) are movably connected to connecting blocks (13) via a rotating shaft; a mounting groove (14) is provided at the rear end of the inner cavity of the connecting block (13); the inner cavity of the mounting groove (14) is movably connected to the inner wall of the screening box (1) via a pin shaft; A second hydraulic telescopic rod (15) is provided, the top of the second hydraulic telescopic rod (15) is movably connected to a fixed plate (16) via a pin shaft, one side of the fixed plate (16) is fixedly connected to the surface of the screen (12), the front and rear ends of the inner cavity of the connecting block (13) are penetrated by sliding rods (17), the bottom of the sliding rod (17) is fixedly connected to a fixed block (18), one side of the fixed block (18) is fixedly connected to the inner wall of the screening box (1), the surface of the sliding rod (17) is sleeved with a spring (19), and the two ends of the spring (19) are respectively fixedly connected to the surfaces of the fixed block (18) and the connecting block (13).

2. A screening device for high-purity magnesia production according to claim 1, characterized in that: The top axis of the screening box (1) is connected to a feed pipe, and the bottom axis of the screening box (1) is connected to a discharge pipe.

3. A screening device for high-purity magnesia production according to claim 1, characterized in that: The four corners of the bottom of the screening box (1) are fixedly connected with supporting legs, and the bottoms of the supporting legs are provided with anti-slip grooves.

4. A screening device for high-purity magnesia production according to claim 1, characterized in that: A controller (20) is fixedly connected to the surface of the screening box (1), and the controller (20) is electrically connected to the electrical equipment via a wire.

5. A screening device for high-purity magnesia production according to claim 1, characterized in that: The inner wall of the first sliding groove (3) is provided with a receiving groove (21), the inner cavity of the receiving groove (21) is provided with a shielding plate (22), and the other side of the shielding plate (22) is fixedly connected to the surface of the connecting plate (6).

6. A screening device for high-purity magnesia production according to claim 1, characterized in that: Limiting grooves (23) are provided on the back of the screening box (1) and on both upper and lower sides of the first motor (8); the inner cavity of the limiting groove (23) is slidably connected to a limiting block, and the other end of the limiting block is fixedly connected to the surface of the mounting plate (9).

7. A screening device for high-purity magnesia production according to claim 1, characterized in that: The back of the screen (12) is fixedly connected to a solenoid valve (24), and the inner cavity of the screen (12) is fixedly connected to three layers of filter screens.

8. The screening equipment for high-purity magnesia production according to claim 1, characterized in that: An anti-dropout block is fixedly connected to the top of the slide bar (17), and the diameter of the anti-dropout block is larger than the outer diameter of the slide bar (17).

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