Discharging device of spiral classifier for mineral separation

Abstract

The utility model discloses a discharge device of a spiral classifier for mineral separation, which belongs to the technical field of spiral classifiers and comprises a bottom plate, a support mechanism is arranged on the bottom plate, a lower classification box is arranged on the support mechanism, the top end of the lower classification box is fixedly connected with an upper classification box, and a feed port is arranged at the top of one end of the upper classification box. According to the utility model, when the mineral aggregate is classified, the mineral aggregate is put into the upper classification box from the feeding hole, the first spiral conveying rod is used for conveying the mineral aggregate in the upper classification box, fine ore and water in the mineral aggregate enter the lower classification box from the ore filtering hole in the conveying process, and the second spiral conveying rod is used for conveying the fine ore in the lower classification box; and water in the mineral aggregate falls off from the water filtering holes, so that residual coarse ore in the upper grading box is discharged from the upper ore discharging pipe, fine ore in the lower grading box is discharged from the lower ore discharging pipe, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of spiral classifier technology, and more specifically, to a discharge device for a spiral classifier used in mineral processing. Background Technology

[0002] Spiral classifiers are one of the equipment used in mineral processing. They are widely used in mineral processing plants to form a closed-loop circulation system with ball mills to separate mineral sands, or in gravity separation plants to classify mineral sands and fine mud, as well as in metal beneficiation processes to classify slurry by particle size, and in washing operations such as desliming and dewatering.

[0003] A search revealed that utility model patent CN221063065U discloses a discharge device for a spiral classifier used in mineral processing. The device includes an inclined spiral classifier body with a discharge port and a feed port extending through its highest and lowest points. A storage trough connected to the feed port is fixedly connected to the rear end of the spiral classifier body. A discharge conveying mechanism is installed inside the storage trough. A rotating shaft is rotatably connected inside the spiral classifier body, with a spiral body fixedly mounted at its front end. A filtering mechanism is installed at the rear end of the spiral classifier body's inner cavity. The filtering mechanism includes a limiting slip ring fixedly connected to the rear end of the rotating shaft and a filter baffle fixedly connected inside the limiting slip ring. This patent, by setting up a filtering mechanism, allows the rotating shaft to drive the filter baffle to rotate, preventing coarse ore from clogging the filter holes on the filter baffle and improving the screening effect of the equipment on fine ore. However, the above-mentioned patent still has the following shortcomings: the rotation of the spiral will drive the ore to move upward, and some fine ore will be carried upward synchronously by the spiral and cannot be filtered by the filter baffle, which will affect the quality of classification; in addition, when coarse ore is piled on the filter baffle, it cannot be smoothly driven upward by the spiral and will still block the filter baffle. For this reason, we have proposed a discharge device for a spiral classifier for mineral processing. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a discharge device for a spiral classifier for mineral processing.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A discharge device for a spiral classifier in mineral processing includes a base plate with a support mechanism on the base plate. A lower classifier is mounted on the support mechanism, and an upper classifier is fixedly connected to the top of the lower classifier. An inlet is located at the top of one end of the upper classifier, and an upper discharge pipe is located at the bottom of the other end of the upper classifier. A lower discharge pipe is located at the bottom of one end of the lower classifier. Drive mechanisms are located on both sides of the lower classifier. Multiple water-filtering holes are formed on the bottom surface of the lower classifier, and multiple mineral-filtering holes are formed at the bottom of one end of the upper classifier. A first spiral conveyor rod is rotatably connected to the inner cavity of the upper classifier, and a second spiral conveyor rod is rotatably connected to the inner cavity of the lower classifier. One end of the shafts of the first and second spiral conveyors extends to the outside of the upper and lower classifiers, respectively, and is fixedly fitted with synchronous pulleys. A synchronous belt drives between the two synchronous pulleys. A first motor is fixedly mounted at the other end of the upper classifier, and the output shaft of the first motor is connected to the other end of the shaft of the first spiral conveyor rod.

[0007] As a preferred embodiment of this utility model, the support mechanism includes two high branch pipes and two low branch pipes fixedly connected to the top surface of the base plate. Springs are fixedly connected to the top surfaces of the low branch pipes and high branch pipes respectively. Support seats are fixedly connected to the top ends of the multiple springs respectively. The side of the support seat is connected to the side of the lower grading box. Sliding rods are fixedly connected to the bottom ends of the multiple support seats respectively. The bottom ends of the multiple sliding rods are movably sleeved into the inner cavity of the low branch pipe or the high branch pipe.

[0008] As a preferred embodiment of this utility model, the driving mechanism includes a mounting plate fixedly connected to the side of the lower grading box, a second motor fixedly mounted on the top surface of the mounting plate, and an eccentric plate fixedly sleeved on the output shaft of the second motor.

[0009] As a preferred embodiment of this utility model, a plurality of water receiving tanks are placed on the top surface of the base plate and below the water filter holes, and handles are fixedly installed at both ends of the water receiving tanks.

[0010] In a preferred embodiment of this utility model, a mounting base is fixedly connected to the top surface of the base plate, and a control panel is fixedly mounted on the outer side of the mounting base.

[0011] In a preferred embodiment of this utility model, the side surface of the first spiral conveyor rod is in contact with the bottom surface of the inner cavity of the upper grading box, and the side surface of the second spiral conveyor rod is in contact with the bottom surface of the inner cavity of the lower grading box.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] (1) In this utility model, when classifying mineral materials, the mineral materials are put into the upper classification box from the feed port. The first spiral conveyor rod is used to transport the mineral materials in the upper classification box. During the transport process, the fine minerals and water in the mineral materials enter the lower classification box through the filter holes. The second spiral conveyor rod is used to transport the fine minerals in the lower classification box. The water in the mineral materials falls down from the water filter holes, so that the remaining coarse minerals in the upper classification box are discharged from the upper discharge pipe, and the fine minerals in the lower classification box are discharged from the lower discharge pipe, thus realizing the function of completely classifying the mineral materials.

[0014] (2) In this utility model, when the lower and upper grading boxes are used to classify the ore, two second motors drive two eccentric plates to rotate synchronously. The centrifugal force generated by the eccentric plates causes the lower and upper grading boxes to sway. At the same time, the spring force causes the lower and upper grading boxes to sway up and down, ensuring that the filter holes and water holes can efficiently classify fine ore and water. The vibration force can reduce the probability of the filter holes and water holes being blocked, making it practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the upper grading box of this utility model;

[0017] Figure 3 This is a schematic diagram of the upper grading box of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the short branch pipe and the tall branch pipe of this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Base plate; 2. Support mechanism; 3. Lower grading box; 4. Upper grading box; 5. Feed inlet; 6. Water filter hole; 7. Ore filter hole; 8. Drive mechanism; 9. First spiral conveyor rod; 10. Second spiral conveyor rod; 11. Synchronous pulley; 12. Synchronous belt; 13. First motor; 14. Upper ore discharge pipe; 15. Lower ore discharge pipe; 16. Water receiving tank; 17. Handle; 18. Short branch pipe; 19. High branch pipe; 20. Spring; 21. Support base; 22. Slide rod; 23. Mounting plate; 24. Second motor; 25. Eccentric plate; 26. Mounting base; 27. Control panel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] Please see Figure 1-4 A discharge device for a spiral classifier in mineral processing includes a base plate 1, a support mechanism 2 on the base plate 1, a lower classifier 3 on the support mechanism 2, an upper classifier 4 fixedly connected to the top of the lower classifier 3, a feed inlet 5 at the top of one end of the upper classifier 4, an upper discharge pipe 14 at the bottom of the other end of the upper classifier 4, a lower discharge pipe 15 at the bottom of one end of the lower classifier 3, drive mechanisms 8 on both sides of the lower classifier 3, multiple filter holes 6 on the bottom surface of the lower classifier 3, and a filter hole 6 at the bottom of one end of the upper classifier 4. There are multiple filter holes 7. The inner cavity of the upper classifier 4 is rotatably connected to a first spiral conveyor rod 9, and the inner cavity of the lower classifier 3 is rotatably connected to a second spiral conveyor rod 10. One end of the rotating shaft of the first spiral conveyor rod 9 and the second spiral conveyor rod 10 extends to the outside of the upper classifier 4 and the lower classifier 3 respectively and is fixedly sleeved with a synchronous pulley 11. A synchronous belt 12 is connected between the two synchronous pulleys 11. The other end of the upper classifier 4 is fixedly installed with a first motor 13, and the output shaft of the first motor 13 is connected to the other end of the rotating shaft of the first spiral conveyor rod 9.

[0026] In this embodiment, the inner diameter of the ore filter hole 7 is larger than the inner diameter of the water filter hole 6, so that the ore filter hole 7 can only allow fine minerals and water in the ore to fall into the lower classifier 3, and the water filter hole 6 can only allow water to fall down.

[0027] For details, please refer to Figure 1 and Figure 4 The support mechanism 2 includes two high branch pipes 19 and two low branch pipes 18 fixedly connected to the top surface of the base plate 1. Springs 20 are fixedly connected to the top surfaces of the low branch pipes 18 and the high branch pipes 19 respectively. Support seats 21 are fixedly connected to the top ends of the multiple springs 20 respectively. The side of the support seat 21 is connected to the side of the lower grading box 3. Slide rods 22 are fixedly connected to the bottom ends of the multiple support seats 21 respectively. The bottom ends of the multiple slide rods 22 are movably sleeved into the inner cavity of the low branch pipe 18 or the high branch pipe 19 respectively.

[0028] In this embodiment, the inner walls of the short branch pipe 18 and the tall branch pipe 19 are respectively in contact with the side of the slide rod 22 to ensure the stability between the short branch pipe 18, the tall branch pipe 19 and the slide rod 22.

[0029] For details, please refer to Figure 1 and Figure 3 The drive mechanism 8 includes a mounting plate 23 fixedly connected to the side of the lower grading box 3. A second motor 24 is fixedly mounted on the top surface of the mounting plate 23, and an eccentric plate 25 is fixedly sleeved on the output shaft of the second motor 24.

[0030] In this embodiment, the eccentric plates 25 on the two sides of the drive mechanism 8 of the lower grading box 3 are aligned to ensure that centrifugal force can be generated when the eccentric plates 25 rotate.

[0031] For details, please refer to Figure 1 Multiple water receiving tanks 16 are placed on the top surface of the base plate 1 and below the water filter holes 6. Handles 17 are fixedly installed at both ends of the water receiving tanks 16.

[0032] In this embodiment, the water falling from the filter hole 6 is collected by the water tank 16, and the water tank 16 is moved by the handle 17.

[0033] For details, please refer to Figure 1 and Figure 4 A mounting base 26 is fixedly connected to the top surface of the base plate 1, and a control panel 27 is fixedly installed on the outside of the mounting base 26.

[0034] In this embodiment, the device is controlled using the control panel 27.

[0035] For details, please refer to Figure 2 The side of the first spiral conveyor rod 9 is in contact with the bottom surface of the inner cavity of the upper classifier 4, and the side of the second spiral conveyor rod 10 is in contact with the bottom surface of the inner cavity of the lower classifier 3.

[0036] In this embodiment, the first spiral conveyor rod 9 is used to convey the ore in the upper classifier box 4, while the second spiral conveyor rod 10 is used to convey the fine ore in the lower classifier box 3.

[0037] Working principle: In operation, firstly, the two second motors 24 are started to drive the two eccentric plates 25 to rotate. The centrifugal force generated by the rotation of the two eccentric plates 25 causes the lower classifier 3 to generate centrifugal force, which, together with the spring 20, causes the lower classifier 3 and the upper classifier 4 to sway up and down. Then, the first motor 13 is started to drive the first spiral conveyor rod 9 and one of the synchronous pulleys 11 to rotate. Through the transmission between the synchronous pulley 11 and the synchronous belt 12, the second spiral conveyor rod 10 is driven to rotate synchronously. Then, the ore to be classified is fed from the feed inlet 5. The ore enters the inner cavity of the upper classifier 4, and the first spiral conveyor rod 9 drives the ore to move upward, causing the fine ore and water in the ore to fall through the filter holes 7 into the lower classifier 3. The first spiral conveyor rod 9 lifts the coarse ore to the top of the inner cavity of the upper classifier 4, and the coarse ore is discharged from the upper discharge pipe 14. Finally, the fine ore entering the lower classifier 3 is conveyed upward by the second spiral conveyor rod 10. The water in the fine ore falls from the water filter holes 6 into the water receiving tank 16, and the fine ore is discharged from the lower discharge pipe 15 at the bottom of the lower classifier 3.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A discharge device for a spiral classifier used in mineral processing, comprising a base plate (1), characterized in that: A support mechanism (2) is provided on the base plate (1), and a lower grading box (3) is provided on the support mechanism (2). An upper grading box (4) is fixedly connected to the top of the lower grading box (3). A feed inlet (5) is provided at the top of one end of the upper grading box (4), and an upper discharge pipe (14) is provided at the bottom of the other end of the upper grading box (4). A lower discharge pipe (15) is provided at the bottom of one end of the lower grading box (3). A drive mechanism (8) is provided on both sides of the lower grading box (3). Multiple water filter holes (6) are opened on the bottom surface of the lower grading box (3), and multiple mineral filter holes (6) are opened at the bottom of one end of the upper grading box (4). 7) The inner cavity of the upper grading box (4) is rotatably connected to a first spiral conveying rod (9), and the inner cavity of the lower grading box (3) is rotatably connected to a second spiral conveying rod (10). One end of the rotating shaft of the first spiral conveying rod (9) and the second spiral conveying rod (10) extends to the outside of the upper grading box (4) and the lower grading box (3) respectively and is fixedly sleeved with a synchronous wheel (11). The two synchronous wheels (11) are connected by a synchronous belt (12). The other end of the upper grading box (4) is fixedly installed with a first motor (13). The output shaft of the first motor (13) is connected to the other end of the rotating shaft of the first spiral conveying rod (9).

2. The discharge device for a spiral classifier for mineral processing according to claim 1, characterized in that: The support mechanism (2) includes two high branch pipes (19) and two low branch pipes (18) fixedly connected to the top surface of the base plate (1). The top surfaces of the low branch pipes (18) and the high branch pipes (19) are respectively fixedly connected to springs (20). The top ends of the multiple springs (20) are respectively fixedly connected to support seats (21). The side of the support seat (21) is connected to the side of the lower grading box (3). The bottom ends of the multiple support seats (21) are fixedly connected to sliding rods (22). The bottom ends of the multiple sliding rods (22) are respectively movably sleeved into the inner cavity of the low branch pipe (18) or the high branch pipe (19).

3. The discharge device for a spiral classifier for mineral processing according to claim 1, characterized in that: The drive mechanism (8) includes a mounting plate (23) fixedly connected to the side of the lower grading box (3). A second motor (24) is fixedly mounted on the top surface of the mounting plate (23), and an eccentric plate (25) is fixedly sleeved on the output shaft of the second motor (24).

4. The discharge device for a spiral classifier for mineral processing according to claim 1, characterized in that: Multiple water receiving tanks (16) are placed on the top surface of the base plate (1) and below the water filter hole (6), and handles (17) are fixedly installed at both ends of the water receiving tanks (16).

5. The discharge device for a spiral classifier for mineral processing according to claim 1, characterized in that: A mounting base (26) is fixedly connected to the top surface of the base plate (1), and a control panel (27) is fixedly installed on the outside of the mounting base (26).

6. The discharge device for a spiral classifier for mineral processing according to claim 1, characterized in that: The side of the first spiral conveyor rod (9) is in contact with the bottom surface of the inner cavity of the upper grading box (4), and the side of the second spiral conveyor rod (10) is in contact with the bottom surface of the inner cavity of the lower grading box (3).

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