An apparatus for secondary recovery of gold from flotation tailings

Abstract

The utility model is suitable for gold concentrate technical field provides an equipment for gold secondary recovery of flotation tailings, including mixing cylinder and slurry pump, the upper surface of mixing cylinder is provided with feed pipe, the top wall rotation of mixing cylinder is connected with rotating pipe, rotating pipe and feed pipe inside intercommunication, the downside of rotating pipe is provided with swing pipe, it is provided with connecting hose between swing pipe and rotating pipe, swing pipe and rotating pipe pass through connecting hose and are mutually linked, the both sides of rotating pipe are provided with mounting plate, swing pipe is located between two mounting plates, and rotates between two mounting plates, the utility model discloses can swing swing pipe through the setting, like this, slurry and reagent can increase the feed range of reagent and slurry when putting, and the position of reagent or slurry is fixed as far as possible, the mixing uniformity of tailings slurry and reagent is influenced, and the recovery efficiency of tailings secondary recovery gold is ensured.

Description

Technical Field

[0001] This utility model relates to the field of gold concentrate technology, and more specifically, it relates to a device for secondary gold recovery from flotation tailings. Background Technology

[0002] Gold concentrate is a processed and enriched product. Because the grade of raw gold ore is low, direct transportation or refining of gold is very costly and not worthwhile. It needs to be enriched through physical beneficiation to reach at least 40 grams per ton. This will significantly reduce the unit transportation and smelting costs and result in obvious economic benefits. Tailings are one of the products of beneficiation operations, so equipment for secondary gold recovery is quite important.

[0003] For example, a search revealed an existing patent: CN220941228U, which discloses a grinding, beneficiation and flotation device for improving the gold recovery rate of gold concentrate tailings. This prior art drives the diversion box to rotate, which facilitates the dispersion of slurry and reagents inside the mixing cylinder.

[0004] However, the applicant believes that the existing technology has the following drawbacks: Although the existing technology is equipped with a diversion box, the inlet for feeding is only located on one side of the diversion box. When the mud or reagent is poured into the diversion box through the inlet, since the existing mud and reagent are generally fluid, although the diversion box is rotating, the friction between the mud or reagent and the diversion box is small. This will cause the mud or reagent to be sprayed only to the side near the inlet under the action of centrifugal force, resulting in a limited feeding range. This affects the uniformity of the feeding of slurry and reagent, and requires more time to mix the slurry and reagent, thus affecting the recovery efficiency of gold recovery in tailings. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for secondary gold recovery from flotation tailings that can increase the feeding range of reagents and mud and avoid the fixed feeding position of reagents or mud as much as possible.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A device for secondary gold recovery from flotation tailings includes a mixing cylinder and a mud pump. A feed pipe is provided on the upper surface of the mixing cylinder. A rotating pipe is rotatably connected to the top wall of the mixing cylinder, and the rotating pipe communicates internally with the feed pipe. A swing pipe is provided on the lower side of the rotating pipe. A connecting hose is provided between the swing pipe and the rotating pipe, and the swing pipe and the rotating pipe are interconnected through the connecting hose. Mounting plates are provided on both the front and rear sides of the rotating pipe. The swing pipe is located between the two mounting plates and rotates between them. A torsion spring is provided between the swing pipe and the mounting plates. Under the action of the torsion spring, the swing pipe initially remains vertical. A pushing component for controlling the swing of the swing pipe is provided on the outer surface of the rotating pipe.

[0007] The present invention is further configured such that: a motor is provided on the upper surface of the mixing cylinder, the output shaft of the motor is positioned downwards, a rotating shaft is rotatably connected to the top wall of the mixing cylinder, the upper end of the rotating shaft rotatably extends through the upper surface of the mixing cylinder and is connected to the lower end of the motor output shaft, and a plurality of stirring rods arranged in a circumferential array are provided on the outer surface of the mixing cylinder located on the rotating shaft.

[0008] The present invention is further configured such that: a first gear is sleeved on the outer surface of the rotating shaft located inside the mixing cylinder, and a second gear is sleeved on the outer surface of the rotating tube, and the first gear and the second gear mesh with each other.

[0009] The present invention is further configured such that: the pushing component includes a connecting plate, a contact push rod is slidably sleeved on the connecting plate, the lower end of the contact push rod contacts the upper surface of the swing tube and slides, a sleeve plate is sleeved on the outer surface of the lower end of the contact push rod, and a tension spring is movably sleeved on the outer surface of the contact push rod between the sleeve plate and the connecting plate.

[0010] The present invention is further configured such that: a fixing plate is provided on the top wall of the mixing cylinder near the rotating tube, and a fixing ring is provided on the lower side of the fixing plate. The fixing ring is rotatably sleeved on the outer surface of the rotating tube, and the upper end of the contact push rod contacts the lower end of the fixing ring and slides.

[0011] The present invention is further configured such that: a plurality of arc-shaped protrusions arranged in an arc array are provided on the lower surface of the fixed ring away from the rotation axis, and the upper end of the contact push rod can contact the arc surface of the arc-shaped protrusions and slide.

[0012] The present invention is further configured such that: the suction port of the mud pump is provided with a suction pipe, the other end of the suction pipe is installed on the outside of the mixing cylinder and communicates with the inside of the mixing cylinder, and the suction pipe is located at the bottom of the mixing cylinder.

[0013] The advantages of this utility model are: This invention features a swing tube that can swing, which increases the feeding range of the mud and reagents during the addition of the mud and reagents. This avoids the problem of fixed placement of the reagents or mud, which affects the uniformity of mixing between the tailings slurry and the reagents, and ensures the recovery efficiency of gold from the tailings secondary recovery. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a device for secondary gold recovery from flotation tailings according to the present invention; Figure 2 This is a front view of the hybrid cylinder of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0015] In the diagram: 1. Mixing cylinder; 2. Mud pump; 3. Suction pipe; 4. Feed pipe; 5. Motor; 6. Rotating shaft; 7. Stirring rod; 8. Rotating tube; 9. Swinging tube; 10. Connecting hose; 11. Mounting plate; 12. Torsion spring; 13. First gear; 14. Second gear; 15. Fixing ring; 16. Fixing plate; 17. Connecting plate; 18. Contact push rod; 19. Sleeve plate; 20. Tension spring; 21. Arc-shaped protrusion. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1-3 The present invention provides the following technical solution: Specifically, it refers to a device for secondary gold recovery from flotation tailings, including a mixing cylinder 1 and a mud pump 2. The mud pump 2 is equipped with a suction pipe 3 at its suction port. The other end of the suction pipe 3 is installed on the outside of the mixing cylinder 1 and communicates with the inside of the mixing cylinder 1. The suction pipe 3 is located at the bottom of the mixing cylinder 1. Therefore, the mud pump 2 can draw the mixed slurry inside the mixing cylinder 1 and draw it into the flotation machine for flotation.

[0019] A motor 5 is installed on the upper surface of the mixing cylinder 1, with the output shaft of the motor 5 facing downwards. A rotating shaft 6 is rotatably connected to the top wall of the mixing cylinder 1. The upper end of the rotating shaft 6 rotatably passes through the upper surface of the mixing cylinder 1 and is connected to the lower end of the output shaft of the motor 5. Multiple stirring rods 7 arranged in a circular array are installed on the outer surface of the rotating shaft 6 inside the mixing cylinder 1.

[0020] When in use, the motor 5 starts, and the output shaft of the motor 5 synchronously drives the rotating shaft 6 to rotate. The stirring rod 7 rotates synchronously with the rotating shaft 6, so the stirring rod 7 will mix the slurry and reagents in the mixing cylinder 1 together.

[0021] A feed pipe 4 is provided on the upper surface of the mixing cylinder 1. A rotating pipe 8 is rotatably connected to the top wall of the mixing cylinder 1. The rotating pipe 8 is internally connected to the feed pipe 4. Therefore, mud or chemicals can be fed into the rotating pipe 8 through the feed pipe 4. A swing pipe 9 is provided on the lower side of the rotating pipe 8. A connecting hose 10 is provided between the swing pipe 9 and the rotating pipe 8. The swing pipe 9 and the rotating pipe 8 are interconnected through the connecting hose 10. Mounting plates 11 are provided on both the front and rear sides of the rotating pipe 8. The swing pipe 9 is located between the two mounting plates 11 and rotates between the two mounting plates 11. A torsion spring 12 is provided between the swing pipe 9 and the mounting plate 11. Therefore, the swing pipe 9 is initially kept vertical under the action of the torsion spring 12.

[0022] A first gear 13 is fitted on the outer surface of the rotating shaft 6 inside the mixing cylinder 1, and a second gear 14 is fitted on the outer surface of the rotating tube 8. The first gear 13 and the second gear 14 mesh with each other. Therefore, when the rotating shaft 6 rotates, the first gear 13 can mesh with and drive the second gear 14 to rotate, so that the rotating tube 8 rotates synchronously with the second gear 14.

[0023] The outer surface of the rotating tube 8 is provided with a pushing assembly for controlling the swing of the swing tube 9. The pushing assembly includes a connecting plate 17, on which a contact push rod 18 is slidably sleeved. The lower end of the contact push rod 18 contacts the upper surface of the swing tube 9. A sleeve plate 19 is sleeved on the outer surface of the lower end of the contact push rod 18. A tension spring 20 is movably sleeved on the outer surface of the contact push rod 18 between the sleeve plate 19 and the connecting plate 17.

[0024] A fixing plate 16 is provided on the top wall of the mixing cylinder 1 near the rotating tube 8. A fixing ring 15 is provided on the lower side of the fixing plate 16. The fixing ring 15 is rotatably sleeved on the outer surface of the rotating tube 8. The upper end of the contact push rod 18 contacts the lower end of the fixing ring 15 and slides. A plurality of arc-shaped protrusions 21 arranged in an arc array are provided on the lower surface of the side of the fixing ring 15 away from the rotating shaft 6. The upper end of the contact push rod 18 can contact the arc surface of the arc-shaped protrusions 21 and slide.

[0025] During use, the rotating tube 8 rotates, and the contact push rod 18 rotates synchronously with the rotating tube 8, causing the contact push rod 18 to slide along the lower surface of the fixed ring 15. When the contact push rod 18 slides to the arc-shaped protrusion 21, the arc-shaped protrusion 21 will exert a pushing force on the contact push rod 18, causing the contact push rod 18 to move downward. At the same time, the tension spring 20 is stressed and stretched. The downward movement of the contact push rod 18 will exert a pushing force on one side of the swing tube 9, causing the swing tube 9 to rotate with the lower side of the mounting plate 11 as the rotation point. Meanwhile, the arc-shaped protrusion 21 is located on the side away from the rotating shaft 6, so that the swing tube 9 can swing to one side of the rotating shaft 6. At this time, the mud and chemicals conveyed through the feed pipe 4 are splashed under the swing of the swing tube 9, thereby increasing the mud and chemical feeding range and making the mud and chemicals mix more evenly.

[0026] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A device for secondary gold recovery from flotation tailings, comprising a mixing cylinder (1) and a mud pump (2), characterized in that: The upper surface of the mixing cylinder (1) is provided with a feed pipe (4), and the top wall of the mixing cylinder (1) is rotatably connected with a rotating pipe (8). The rotating pipe (8) is internally connected to the feed pipe (4). A swing pipe (9) is provided on the lower side of the rotating pipe (8). A connecting hose (10) is provided between the swing pipe (9) and the rotating pipe (8). The swing pipe (9) and the rotating pipe (8) are interconnected through the connecting hose (10). Mounting plates (11) are provided on both the front and rear sides of the rotating pipe (8). The swing pipe (9) is located between the two mounting plates (11) and rotates between the two mounting plates (11). A torsion spring (12) is provided between the swing pipe (9) and the mounting plate (11). The swing pipe (9) is initially kept vertical under the action of the torsion spring (12). A pushing component for controlling the swing of the swing pipe (9) is provided on the outer surface of the rotating pipe (8).

2. The equipment for secondary gold recovery from flotation tailings according to claim 1, characterized in that: A motor (5) is provided on the upper surface of the mixing cylinder (1). The output shaft of the motor (5) is set downward. A rotating shaft (6) is rotatably connected to the top wall of the mixing cylinder (1). The upper end of the rotating shaft (6) rotates through the upper surface of the mixing cylinder (1) and is connected to the lower end of the output shaft of the motor (5). Multiple stirring rods (7) arranged in a circular array are provided on the outer surface of the rotating shaft (6) inside the mixing cylinder (1).

3. The equipment for secondary gold recovery from flotation tailings according to claim 2, characterized in that: The rotating shaft (6) is fitted with a first gear (13) on the outer surface inside the mixing cylinder (1), and a second gear (14) is fitted on the outer surface of the rotating tube (8). The first gear (13) and the second gear (14) mesh with each other.

4. The equipment for secondary gold recovery from flotation tailings according to claim 3, characterized in that: The pushing assembly includes a connecting plate (17), on which a contact push rod (18) is slidably sleeved. The lower end of the contact push rod (18) contacts the upper surface of the swing tube (9) and slides. A sleeve plate (19) is sleeved on the outer surface of the lower end of the contact push rod (18). A tension spring (20) is movably sleeved on the outer surface of the contact push rod (18) between the sleeve plate (19) and the connecting plate (17).

5. The equipment for secondary gold recovery from flotation tailings according to claim 4, characterized in that: A fixing plate (16) is provided on the top wall of the mixing cylinder (1) near the rotating tube (8). A fixing ring (15) is provided on the lower side of the fixing plate (16). The fixing ring (15) is rotatably sleeved on the outer surface of the rotating tube (8). The upper end of the contact push rod (18) contacts the lower end of the fixing ring (15) and slides.

6. The equipment for secondary gold recovery from flotation tailings according to claim 5, characterized in that: The lower surface of the fixed ring (15) away from the rotation axis (6) is provided with a plurality of arc-shaped protrusions (21) arranged in an arc array. The upper end of the contact push rod (18) can contact the arc surface of the arc-shaped protrusions (21) and slide.

7. The equipment for secondary gold recovery from flotation tailings according to claim 1, characterized in that: The mud pump (2) is equipped with a suction pipe (3) at its suction port. The other end of the suction pipe (3) is installed on the outside of the mixing cylinder (1) and communicates with the inside of the mixing cylinder (1). The suction pipe (3) is located at the bottom of the mixing cylinder (1).

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