Multi-stage screening mechanism for solid waste in bauxite

Abstract

The utility model discloses a multistage screening mechanism for solid waste in bauxite, which comprises a shell and a movable concave plate arranged in the shell, a shakable screening shell is arranged at the top of the concave plate, three detachable screens are arranged in the screening shell, and the multistage screening mechanism further comprises a fixing block. The number of the fixing blocks is two, and the fixing blocks are installed on the top of the concave plate. Through mutual cooperation of a concave plate, a screening shell, a screen, a fixing block, a servo motor, a rotating convex block, a stabilizing block, a connecting rod, a moving block, an elastic piece, a first electric push rod, a push plate, a second electric push rod, an inclined plate, a supporting block, a fastening bolt, a discharging opening, a top plate, a collecting shell, an inserting groove, an iron block and a magnet, the screen can shake up and down; and therefore, the effect of screening the solid waste in the bauxite is improved, the screen mesh can be conveniently detached for maintenance and overhaul, and the flexibility during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bauxite screening, in particular to a multi-stage screening mechanism for solid waste in bauxite. Background Technique

[0002] Bauxite actually refers to the general term for ores that can be utilized industrially and mainly composed of gibbsite and boehmite. Bauxite is the best raw material for producing metallic aluminum. When processing bauxite, a multi-stage screening mechanism is required to screen the solid waste in bauxite.

[0003] According to the application number: CN202120592594.5, a bauxite screening and dust removal device includes a dust removal device main body and a bauxite screening machine. The screening plates are evenly installed in the bauxite screening machine. A fixed seat is provided on the dust removal device main body, and a dust suction pipe is provided in the fixed seat. A dust collector is installed at the upper end of the dust suction pipe, and dust suction ports are evenly connected to the lower end of the dust suction pipe. A dust discharge pipe is also installed on the side of the dust collector. The side of the bauxite screening machine is evenly provided with discharge ports, and a discharge cover door and a discharge plate are provided outside the bauxite screening machine. The bottom of the bauxite screening machine is of an inclined structure, and a dust discharge port is opened on one side above the inclined structure at the bottom of the bauxite screening machine.

[0004] The screen of the screening device in the above case is fixed inside the housing, resulting in poor screening effect, and it is not convenient to disassemble the screen from the housing for maintenance and repair, thus reducing the flexibility during use. Therefore, we provide a multi-stage screening mechanism for solid waste in bauxite. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-stage screening mechanism for solid waste in bauxite to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A multi-stage screening mechanism for solid waste in bauxite includes a housing and a movable concave plate arranged inside the housing. A swayable screening shell is arranged on the top of the concave plate. Three detachable screens are arranged inside the screening shell. First electric push rods are installed on the left and right sides of the bottom of the inner wall of the housing, and a push plate is installed at the top of the first electric push rods. Two second electric push rods are installed at the bottom of the inner wall of the screening shell, and the tops of the two second electric push rods are fixedly connected by an inclined plate. Support blocks are arranged on the left side of the bottoms of the three screens, and fastening bolts threadedly connected to the screens are arranged at the bottoms of the support blocks. Discharge ports are opened on the right side of the screening shell corresponding to the positions of the screens and the inclined plate.

[0007] Preferably, it further includes fixing blocks. The number of the fixing blocks is two, and they are respectively installed on the top of the concave plate. A servo motor is installed on the back of the fixing block. The front end of the output shaft of the servo motor penetrates through the fixing block and extends to its outside. A rotating convex block used in cooperation with the screening shell is installed on the surface of the output shaft of the servo motor.

[0008] Preferably, stabilizing blocks are installed on both the left and right sides of the inner wall of the concave plate. Three connecting rods are installed at the bottom of both the left and right sides of the screening shell. One end of the connecting rod away from the screening shell penetrates through the stabilizing block and extends to its outside. The bottom ends of the three connecting rods on the same side are fixedly connected through a moving block.

[0009] Preferably, an elastic member is sleeved on the surface of the connecting rod, and the elastic member is made of a spring.

[0010] Preferably, a top plate is installed on the right side of the screening shell and at the bottom of the discharge port. A collecting shell is arranged on the top of the top plate. Two slots are opened at the bottom of the collecting shell. An iron block is installed on the top of the inner wall of the slot. A magnet is installed on the top of the top plate at the position corresponding to the iron block.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the mutual cooperation of the concave plate, screening shell, sieve mesh, fixing blocks, servo motor, rotating convex block, stabilizing blocks, connecting rods, moving block, elastic member, first electric push rod, push plate, second electric push rod, inclined plate, support block, fastening bolt, discharge port, top plate, collecting shell, slot, iron block and magnet of the present utility model, the sieve mesh can shake up and down, thereby improving the screening effect on the solid waste in bauxite, and it is convenient to disassemble the sieve mesh for maintenance and repair, improving the flexibility during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural sectional view of the front view of the present utility model;

[0015] Figure 3 is a structural schematic diagram of the rear view of the concave plate, fixing blocks, servo motor and rotating convex block of the present utility model;

[0016] Figure 4 is a structural sectional view of the front view of the screening shell and sieve mesh of the present utility model;

[0017] Figure 5 is a structural sectional view of the front view of the top plate and collecting shell of the present utility model.

[0018] In the figure: 1 housing, 2 concave plate, 3 screening housing, 4 sieve mesh, 5 fixing block, 6 servo motor, 7 rotating convex block, 8 stabilizing block, 9 connecting rod, 10 moving block, 11 elastic member, 12 first electric push rod, 13 push plate, 14 second electric push rod, 15 inclined plate, 16 support block, 17 fastening bolt, 18 discharge port, 19 top plate, 20 collection housing, 21 slot, 22 iron block, 23 magnet. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 , a multi-stage screening mechanism for solid waste in bauxite, including a housing 1 and a movable concave plate 2 arranged inside the housing 1. The bottom of the concave plate 2 is in contact with the bottom of the inner wall of the housing 1. A movable screening housing 3 is arranged on the top of the concave plate 2. Three detachable sieve meshes 4 are arranged inside the screening housing 3, and the surface of the sieve mesh 4 is in contact with the inner wall of the screening housing 3.

[0021] Further, the top of the left side of the housing 1 is movably connected by a hinge with a cover plate. A feeding cover is arranged on the top of the cover plate, and a controller is fixedly connected to the left side of the housing 1.

[0022] Further, the apertures of the three sieve meshes 4 are different, and the apertures decrease in sequence from top to bottom.

[0023] It further includes two fixing blocks 5 which are respectively installed on the top of the concave plate 2. A servo motor 6 is fixedly connected to the back of the fixing block 5. The front end of the output shaft of the servo motor 6 penetrates through the fixing block 5 and extends to the outside thereof. A rotating convex block 7 cooperating with the screening housing 3 is fixedly connected to the surface of the output shaft of the servo motor 6. The top end of the rotating convex block 7 is in contact with the bottom of the screening housing 3. Stabilizing blocks 8 are fixedly connected to both the left and right sides of the inner wall of the concave plate 2. Three connecting rods 9 are fixedly connected to the bottom of both the left and right sides of the screening housing 3. The end of the connecting rod 9 far from the screening housing 3 penetrates through the stabilizing block 8 and extends to the outside thereof. The bottom ends of the three connecting rods 9 on the same side are fixedly connected by a moving block 10. The side of the moving block 10 close to the inner wall of the concave plate 2 is in sliding contact with the inner wall of the concave plate 2. An elastic member 11 is sleeved on the surface of the connecting rod 9, and the elastic member 11 is made of a spring.

[0024] On both the left and right sides of the bottom of the inner wall of the housing 1, there are first electric push rods 12 fixedly connected. The top of the first electric push rod 12 is fixedly connected with a push plate 13. One side of the push plate 13 close to the concave plate 2 is fixedly connected with the concave plate 2. At the bottom of the inner wall of the screening housing 3, there are two second electric push rods 14 fixedly connected. The tops of the two second electric push rods 14 are fixedly connected through an inclined plate 15. The surface of the inclined plate 15 is in contact with the inner wall of the concave plate 2. On the left side of the bottom of each of the three screening meshes 4, there is a support block 16. The support block 16 at the bottom is fixedly connected with the top of the inclined plate 15. The two support blocks 16 at the top are fixedly connected with the two screening meshes 4. At the bottom of the support block 16, there is a fastening bolt 17 threadedly connected with the screening mesh 4. At the right side of the screening housing 3 and corresponding to the positions of the screening mesh 4 and the inclined plate 15, there are discharge ports 18 opened. At the right side of the screening housing 3 and at the bottom of the discharge port 18, there is a top plate 19 fixedly connected. On the top of the top plate 19, there is a collection housing 20. The bottom of the collection housing 20 is in contact with the top of the top plate 19. At the bottom of the collection housing 20, there are two slots 21 opened. At the top of the inner wall of the slot 21, there is an iron block 22 fixedly connected. At the top of the top plate 19 and corresponding to the position of the iron block 22, there is a magnet 23 fixedly connected. The top of the magnet 23 penetrates through the slot 21 and extends into its interior. The top of the magnet 23 is magnetically attracted to the bottom of the iron block 22. By providing the slot 21, the iron block 22 and the magnet 23, the stability when the top plate 19 and the collection housing 20 are connected is improved.

[0025] Further, on both the left and right sides of the inner wall of the screening housing 3 and at the bottom of the inclined plate 15, there are top blocks fixedly connected. The top of the top block is in contact with the bottom of the inclined plate 15.

[0026] Further, the servo motor 6, the first electric push rod 12 and the second electric push rod 14 are respectively electrically connected to the controller.

[0027] Specifically, when the material screening is completed, open the cover plate so that the cover plate rotates leftward around the hinge, and then start the first electric push rod 12. The first electric push rod 12 drives the concave plate 2 to move upward through the push plate 13. The concave plate 2 drives the screening housing 3 to move upward to the outside of the housing 1. Then pull the collection housing 20 upward. The collection housing 20 drives the slot 21 and the iron block 22 to be separated from the magnet 23, and then the collection housing 20 can be disassembled.

[0028] Specifically, when the screening housing 3 moves to the outside of the housing 1 and the screening mesh 4 needs to be disassembled, start the second electric push rod 14. The second electric push rod 14 drives the screening mesh 4 to move upward through the inclined plate 15, so that the screening mesh 4 moves to the outside of the screening housing 3. Then loosen the fastening bolt 17, and the corresponding screening mesh 4 can be disassembled.

[0029] Through the mutual cooperation of the concave plate 2, the screening shell 3, the screen 4, the fixing block 5, the servo motor 6, the rotating convex block 7, the stabilizing block 8, the connecting rod 9, the moving block 10, the elastic member 11, the first electric push rod 12, the pushing plate 13, the second electric push rod 14, the inclined plate 15, the supporting block 16, the fastening bolt 17, the discharge port 18, the top plate 19, the collecting shell 20, the slot 21, the iron block 22 and the magnet 23, the screen 4 can shake up and down, thereby improving the screening effect of solid waste in bauxite, and it is convenient to disassemble the screen 4 for maintenance and repair, improving the flexibility during use.

[0030] During use, open the feeding cover, put bauxite into the screening shell 3, and at the same time start the servo motor 6. The servo motor 6 drives the rotating convex block 7 to rotate clockwise through the output shaft. When the protruding end of the rotating convex block 7 contacts the screening shell 3, the rotating convex block 7 drives the screening shell 3 to move upward. The screening shell 3 drives the moving block 10 to squeeze the elastic member 11 upward through the connecting rod 9. When the protruding end of the rotating convex block 7 separates from the screening shell 3, due to the restoring force of the elastic member 11 and the gravity of the screening shell 3 itself, the screening shell 3 moves downward, ensuring that the rotating convex block 7 and the screening shell 3 always remain in contact, so that the screening shell 3 can move up and down repeatedly, and the screen 4 can move up and down repeatedly, improving the screening effect of solid waste in the bauxite on the screen 4. The screened material is discharged into the collecting shell 20 through the discharge port 18 for collection.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening mechanism for solid waste in bauxite, characterized in that: The invention comprises a shell (1), and a concave plate (2) which is movable inside the shell (1), a screening shell (3) which can be shaken is arranged on the top of the concave plate (2), and three detachable screens (4) are arranged inside the screening shell (3), first electric push rods (12) are installed on both left and right sides of the bottom of the inner wall of the shell (1), a push plate (13) is installed on the top of the first electric push rod (12), two second electric push rods (14) are installed on the bottom of the inner wall of the screening shell (3), the tops of the two second electric push rods (14) are fixedly connected by an inclined plate (15), a support block (16) is arranged on the left side of the bottom of the three screens (4), and a fastening bolt (17) which is threadedly connected to the screen (4) is arranged on the bottom of the support block (16), and a discharge port (18) is opened on the right side of the screening shell (3) and at the position corresponding to the screen (4) and the inclined plate (15).

2. The multi-stage screening mechanism for solid waste in bauxite according to claim 1, characterized in that: It also includes two fixing blocks (5), the number of which is two and which are respectively mounted on the top of the concave plate (2), a servo motor (6) is mounted on the back of the fixing block (5), the front end of the output shaft of the servo motor (6) passes through the fixing block (5) and extends to the outside thereof, and a rotating protrusion (7) for use with the screening shell (3) is mounted on the surface of the output shaft of the servo motor (6).

3. The multi-stage screening mechanism for solid waste in bauxite according to claim 2, characterized in that: Stabilizing blocks (8) are installed on both the left and right sides of the inner wall of the concave plate (2), and three connecting rods (9) are installed on the bottom of both the left and right sides of the screening shell (3), and the end of the connecting rod (9) away from the screening shell (3) passes through the stabilizing block (8) and extends to the outside thereof, and the bottom ends of the three connecting rods (9) on the same side are fixedly connected by a moving block (10).

4. The multi-stage screening mechanism for solid waste in bauxite according to claim 3, characterized in that: An elastic member (11) is sleeved on the surface of the connecting rod (9), and the elastic member (11) is made of a spring.

5. The multi-stage screening mechanism for solid waste in bauxite according to claim 4, characterized in that: A top plate (19) is installed on the right side of the screening shell (3) and at the bottom of the discharge port (18); a collecting shell (20) is arranged on the top of the top plate (19); two slots (21) are provided at the bottom of the collecting shell (20); an iron block (22) is installed on the top of the inner wall of the slot (21); and a magnet (23) is installed on the top of the top plate (19) and at a position corresponding to the iron block (22).

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