Screening device for ore tailing sand treatment

Abstract

The utility model discloses a screening device for ore tailing sand treatment, which belongs to the technical field of ore tailing sand treatment and comprises a screening box, a discharge chute is arranged on the end face of the screening box, supporting mechanisms are respectively arranged on two sides of the screening box, and the end portions of the two supporting mechanisms extend to an inner cavity of the screening box and are provided with movable side plates. Two supporting frames are fixedly connected between the two movable side plates. According to the ore tailing screening device, the first motor drives the cam to rotate to push the push plate outwards, in addition, the push plate is driven to reset through the recovery elastic force of the second spring, and therefore the push plate, the supporting column, the movable side plate and the screen mesh move left and right, and ore tailings are continuously guided into the screen mesh through the rotating conveying belt; and the screened mineral aggregates fall to the bottom of the screening box, and the mineral aggregates which are not screened are discharged from the discharging groove, so that the function of continuously screening the mineral tailings is realized, and the practicability of the screening device for treating the mineral tailings is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tailings processing, in particular to a screening device for mine tailings processing. Background Art

[0002] With the continuous expansion of underground mining and the increase of mining years, the scope and amplitude of surface rock movement caused by goaf areas are gradually expanding. With the hidden danger of a substantial increase in underground water volume in the rainy season, and with the extension of time, it will gradually cause surface caving and subsidence, which is extremely unfavorable to the future safe production and long-term development of the mine. Among them, tailings backfilling is an effective way to solve the goaf area. The tailings are used through thickening equipment, aggregates are added, and prepared into a paste, which is transported to the underground goaf through pipelines. After condensation, the rock stress strength is achieved, reducing the scope and amplitude of surface rock movement in the goaf area. However, the size of tailings varies, and some tailings do not meet the requirements of backfilling, so it is necessary to screen the tailings.

[0003] After searching, the utility model patent with announcement number CN221115730U discloses a fully automatic production line for processing gold tailings sand, including a production frame, a conveying device plugged and installed at the upper left end of the production frame, and a screening box arranged in the middle of the production frame, a scraper, the scraper is fixedly connected to the inner wall of the left end of the production frame, and the scraper and the conveying device are arranged in a close fit, a connecting mechanism, the connecting mechanism is arranged at the right end of the production frame, and a connecting plate, the connecting plate is snap-connected to the lower end of the auxiliary rod; the fully automatic production line for processing gold tailings sand can scrape off the gold tailings sand adhering to the conveying device through the setting of the scraper to prevent residue, and can screen the gold tailings sand, and the setting of the connecting mechanism greatly improves the actual screening efficiency of the gold tailings sand, facilitates the disassembly and replacement of the screening plate, and prevents the screening plate from being blocked during long-term use, affecting the actual screening effect.

[0004] However, the above patent still has the following shortcomings: it is not convenient to continuously screen the tailings sand, and the screening plate needs to be frequently removed to process the ore in the screening box, resulting in poor work efficiency; in addition, the screening effect of the tailings sand is poor only by the left and right shaking of the screening plate. For this reason, we propose a screening device for processing tailings sand. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a screening device for processing mine tailings.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A screening device for processing mine tailings comprises a screening box, an end face of the screening box is provided with a discharge chute, two sides of the screening box are respectively provided with supporting mechanisms, the ends of the two supporting mechanisms extend to the inner cavity of the screening box and are provided with movable side plates, two supporting frames are fixedly connected between the two movable side plates, the top surfaces of the two supporting frames are fixedly connected with a plurality of first springs, the top ends of the plurality of first springs are fixedly connected with a screen, the bottom surface of the screen is fixedly connected with a plurality of limit rods, the bottom ends of the plurality of limit rods are respectively movably sleeved under the supporting frames, the bottom ends of the movable side plates and the screen respectively pass through the discharge chute and extend to the outside of the screening box, the side surfaces of the screen are in contact with the inner surfaces of the movable side plates, the side portions of the screening box are provided with a driving mechanism, and the screening box is provided with a pushing mechanism.

[0008] As a preferred solution of the utility model, the pushing mechanism includes a rotating column rotatably connected to the inner cavity of the screening box and a second motor fixedly installed on the side of the screening box, the output shaft of the second motor is connected to the end of the rotating column, the middle part of the rotating column is fixedly sleeved with a convex ring, and the bottom end of the convex ring is in contact with the top surface of the screen.

[0009] As a preferred solution of the utility model, the supporting mechanism includes two second springs fixedly connected to the side of the screening box, the ends of the two second springs are fixedly connected to push plates, the inner side of the push plate is fixedly connected to two supporting columns, and the ends of the two support columns respectively extend to the inner cavity of the screening box and are connected to the outer side of the movable side plate.

[0010] As a preferred solution of the utility model, the driving mechanism includes a mounting seat fixedly connected to the outside of the screening box, a first motor is fixedly installed on the outside of the mounting seat, an output shaft of the first motor is fixedly sleeved with a cam, and the side surface of the cam is in contact with the inner side surface of the push plate.

[0011] As a preferred solution of the utility model, a conveying frame is provided on the screening box, and a conveying belt is provided on the conveying frame.

[0012] As a preferred solution of the present invention, a control panel is fixedly installed on the side of the screening box.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, the first motor drives the cam to rotate to push the push plate outward, and the restoring elastic force of the second spring drives the push plate to reset, so that the push plate, the support column, the movable side plate and the screen move left and right. In addition, the rotating conveyor belt is used to continuously guide the tailings onto the screen, and the screened ore falls to the bottom of the screening box, and the ore that has not been screened is discharged from the discharge chute, thereby realizing the function of continuous screening of the tailings.

[0015] (2) In the utility model, the second motor, the rotating column and the convex ring are used in coordination, and the convex ring is driven by the second motor to rotate to push the screen downward. In addition, the screen is driven to reset upward by the restoring elastic force of the first spring. The up and down movement of the screen and the left and right movement of the screen are used to efficiently screen the mine tailings, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the screening box of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the push plate of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the screen of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Screening box; 2. Discharge chute; 3. Support mechanism; 4. Driving mechanism; 5. Moving side plate; 6. Support frame; 7. First spring; 8. Screen; 9. Limit rod; 10. Push mechanism; 11. Second spring; 12. Push plate; 13. Support column; 14. Second motor; 15. Rotating column; 16. Conveyor ring; 17. Mounting seat; 18. First motor; 19. Cam; 20. Conveyor frame; 21. Conveyor belt; 22. Control panel. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 A screening device for processing tailings of a mine comprises a screening box 1, an end surface of the screening box 1 is provided with a discharging trough 2, supporting mechanisms 3 are respectively arranged on both sides of the screening box 1, the ends of the two supporting mechanisms 3 are extended to the inner cavity of the screening box 1 and are provided with movable side plates 5, two supporting frames 6 are fixedly connected between the two movable side plates 5, the top surfaces of the two supporting frames 6 are fixedly connected with a plurality of first springs 7, the top ends of the plurality of first springs 7 are fixedly connected with a screen 8, the bottom surface of the screen 8 is fixedly connected with a plurality of limiting rods 9, the bottom ends of the plurality of limiting rods 9 are respectively movably sleeved under the supporting frames 6, the bottom ends of the movable side plates 5 and the screen 8 respectively pass through the discharging trough 2 and extend to the outside of the screening box 1, the side surfaces of the screen 8 are in contact with the inner surfaces of the movable side plates 5, a driving mechanism 4 is arranged on the side of the screening box 1, and a pushing mechanism 10 is arranged on the screening box 1.

[0027] In this embodiment, the inner side surface of the movable side plate 5 is used to limit the side surface of the screen 8 to prevent the tailings on the screen 8 from falling from the side.

[0028] For details, please refer to Figure 1 and Figure 2 The pushing mechanism 10 includes a rotating column 15 rotatably connected to the inner cavity of the screening box 1 and a second motor 14 fixedly installed on the side of the screening box 1. The output shaft of the second motor 14 is connected to the end of the rotating column 15. A convex ring 16 is fixedly sleeved in the middle of the rotating column 15, and the bottom end of the convex ring 16 contacts the top surface of the screen 8.

[0029] In this embodiment, the second motor 14 is used to drive the rotating column 15 and the convex ring 16 to rotate, the convex ring 16 is used to push the screen 8, and the elastic force of the first spring 7 drives the screen 8 to move up and down to ensure the quality of screening.

[0030] For details, please refer to Figure 1 The supporting mechanism 3 includes two second springs 11 fixedly connected to the side of the screening box 1, and the ends of the two second springs 11 are fixedly connected to a push plate 12. The inner side of the push plate 12 is fixedly connected to two supporting columns 13, and the ends of the two supporting columns 13 extend to the inner cavity of the screening box 1 and are connected to the outer side of the movable side plate 5.

[0031] In this embodiment, the two movable side plates 5 are supported by the support columns 13 on the two support mechanisms 3 .

[0032] For details, please refer to Figures 1 to 3 The driving mechanism 4 includes a mounting seat 17 fixedly connected to the outside of the screening box 1, a first motor 18 is fixedly mounted on the outside of the mounting seat 17, an output shaft of the first motor 18 is fixedly sleeved with a cam 19, and a side surface of the cam 19 is in contact with an inner side surface of the push plate 12.

[0033] In this embodiment, the first motor 18 is used to drive the cam 19 to rotate, and the rotation of the cam 19 is used to push the push plate 12. At the same time, the restoring elastic force of the second spring 11 drives the push plate 12 to reset, so that the push plate 12, the support column 13 and the screen 8 move left and right, thereby screening the tailings on the screen 8.

[0034] For details, please refer to Figure 1 A conveying frame 20 is provided on the screening box 1 , and a conveying belt 21 is provided on the conveying frame 20 .

[0035] In this embodiment, the tailings are conveyed by the rotation of the conveyor belt 21 so that the tailings fall onto the screen 8 .

[0036] For details, please refer to Figure 1 A control panel 22 is fixedly mounted on the side of the screening box 1 .

[0037] In this embodiment, the control panel 22 is electrically connected to the second motor 14 and the first motor 18 respectively, and the second motor 14 and the first motor 18 are controlled by the control panel 22 .

[0038] Working principle: when in use, first start the first motor 18 to drive the cam 19 to rotate, use the cam 19 to push a push plate 12 to move outward, and use the elastic force of the second spring 11 to drive the push plate 12 to reset, and use the movement of the push plate 12 to drive the second spring 11, the movable side plate 5 and the screen 8 to move left and right, and then start the second motor 14 to drive the rotating column 15 and the convex ring 16 to rotate, use the convex ring 16 to push the screen 8 downward, and use the recovery elastic force of the first spring 7 to drive the screen 8 to reset upward, so that the screen 8 moves up and down, and then the ore tailings are introduced to the top of the screen 8 through the rotating conveyor belt 21, so that the ore tailings fall onto the screen 8. At this time, the left and right movement and up and down movement of the screen 8 are used to make the ore tailings on the screen 8 vibrate, so as to screen and separate the ore tailings, and finally the sand material screened by the ore tailings falls to the bottom of the screening box 1, and the ore material not screened by the screen 8 is discharged from the discharge chute 2.

[0039] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A screening device for processing tailings, comprising a screening box (1), characterized in that: The end surface of the screening box (1) is provided with a discharge trough (2), and support mechanisms (3) are respectively provided on both sides of the screening box (1), and the ends of the two support mechanisms (3) extend to the inner cavity of the screening box (1) and are provided with movable side plates (5), and two support frames (6) are fixedly connected between the two movable side plates (5), and the top surfaces of the two support frames (6) are fixedly connected with a plurality of first springs (7), and the top ends of the plurality of first springs (7) are fixedly connected with a screen (8) The bottom surface of the screen (8) is fixedly connected to a plurality of limit rods (9), the bottom ends of the plurality of limit rods (9) are movably sleeved to the bottom of the support frame (6), the bottom ends of the movable side plates (5) and the screen (8) respectively penetrate the discharge trough (2) and extend to the outside of the screening box (1), the side surface of the screen (8) and the inner side surface of the movable side plate (5) are in contact with each other, the side of the screening box (1) is provided with a driving mechanism (4), and the screening box (1) is provided with a pushing mechanism (10).

2. A screening device for processing tailings according to claim 1, characterized in that: The pushing mechanism (10) comprises a rotating column (15) rotatably connected to the inner cavity of the screening box (1) and a second motor (14) fixedly mounted on the side of the screening box (1), wherein the output shaft of the second motor (14) is connected to the end of the rotating column (15), and a convex ring (16) is fixedly sleeved in the middle of the rotating column (15), and the bottom end of the convex ring (16) is in contact with the top surface of the screen (8).

3. A screening device for processing tailings according to claim 1, characterized in that: The support mechanism (3) comprises two second springs (11) fixedly connected to the side of the screening box (1), the ends of the two second springs (11) are fixedly connected to a push plate (12), the inner side of the push plate (12) is fixedly connected to two support columns (13), and the ends of the two support columns (13) respectively extend to the inner cavity of the screening box (1) and are connected to the outer side of the movable side plate (5).

4. A screening device for processing tailings according to claim 3, characterized in that: The driving mechanism (4) comprises a mounting seat (17) fixedly connected to the outside of the screening box (1), a first motor (18) being fixedly mounted on the outside of the mounting seat (17), a cam (19) being fixedly sleeved on the output shaft of the first motor (18), and a side surface of the cam (19) being in contact with an inner side surface of the push plate (12).

5. A screening device for processing tailings according to claim 1, characterized in that: The screening box (1) is provided with a conveying frame (20), and the conveying frame (20) is provided with a conveying belt (21).

6. A screening device for processing tailings according to claim 1, characterized in that: A control panel (22) is fixedly mounted on the side of the screening box (1).

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