Flotation device for gold concentrate recovery

Abstract

The utility model relates to a flotation device for gold concentrate recovery, which is characterized in that an upper connecting rod (24) is hinged on a rotating drum (21), a lower connecting rod (25) is hinged on a rotating shaft (22), and the end parts of the upper connecting rod (24) and the lower connecting rod (25) are both hinged with the middle part of a stirring rod (23); the rotating drum (21) rotates to drive the upper connecting rod (24), the lower connecting rod (25), the stirring rods (23) and the rotating shaft (22) to rotate as a whole so as to stir ore pulp in the storage tank (10), and the rotating drum (21) is controlled to move relative to the rotating shaft (22) so as to adjust the distance between the two stirring rods (23), so that the stirring range is changed, and a very good precipitation prevention effect can be achieved; and after storage of the ore pulp is finished, the stirring rod (23) is adjusted until the outer side of the stirring rod (23) makes contact with the inner wall of the storage tank (10), the stirring rod (23) rotates to scrape off the ore pulp attached to the inner wall of the storage tank (10), and waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gold ore recovery, in particular to a flotation device for recovering gold concentrate. Background Art

[0002] Gold concentrate is a processed and enriched product. Since the gold ore has a low grade, typically 2-5 grams per ton, direct transportation or refining is costly and uneconomical, requiring physical beneficiation for enrichment. Gold concentrate flotation is a process that separates gold, silver, and other elements from the ore through physical and chemical methods. Tailings, a byproduct of the flotation process, offer economic value for further recycling. Chinese utility model patent application number CN208839805U discloses a grinding and flotation device designed to improve gold recovery from gold concentrate tailings. The device uses a ball mill to grind the tailings mixed with water to form a slurry. The slurry is then stored in a storage tank, stirred by agitators located at multiple corners to prevent sedimentation. The slurry is then pumped to a flotation tank for flotation. However, this solution suffers from drawbacks: the slurry in the storage tank cannot effectively prevent sedimentation due to the limited stirring range of the agitators. Furthermore, after storage, the slurry tends to adhere to the inner walls of the container, resulting in waste. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the pulp in the storage tank of the existing gold concentrate flotation device cannot play a good anti-sedimentation role due to the limited stirring range of the stirring blade, and the pulp is easy to adhere to the inner wall of the container after storage, causing waste.

[0004] In order to solve the above problems, the utility model provides a flotation device for recovering gold concentrate. A rotating drum and a rotating shaft are respectively provided in the upper and lower parts of the storage tank. A stirring rod is provided on both sides of the rotating drum and the rotating shaft. An upper connecting rod is hinged on the rotating drum, and a lower connecting rod is hinged on the rotating shaft. The ends of the upper connecting rod and the lower connecting rod are hinged to the middle part of the stirring rod. The rotating drum can move relative to the rotating shaft to adjust the distance between the two stirring rods.

[0005] The flotation device for gold concentrate recovery provided by the utility model also has the following technical features:

[0006] The top of the storage tank is open and provided with a cover body, a support frame is installed on the cover body, a motor is provided on the support frame, an output end of the motor is connected to a square shaft, the square shaft is inserted into a square hole opened on the rotating drum, a through hole is opened on the cover body, and the rotating drum is inserted into the through hole.

[0007] The support frame is provided with a telescopic assembly, a connecting ring is rotatably provided on the rotating drum, a connecting block is formed on one side of the connecting ring, and the output end of the telescopic assembly is connected to the connecting block.

[0008] A mounting ring is formed on the inner bottom surface of the storage tank, and the rotating shaft is rotatably and sealingly connected to the mounting ring.

[0009] A connecting seat is provided in the middle of the stirring rod, and the ends of the upper connecting rod and the lower connecting rod are hinged to both sides of the connecting seat respectively. Torsion springs are provided between the upper connecting rod and the connecting seat, and between the lower connecting rod and the connecting seat.

[0010] A plurality of scraping grooves are provided on the outer side of the stirring rod.

[0011] A feed pipe is provided on one side of the storage tank, and a discharge pipe is provided on the bottom.

[0012] The bottom of the storage tank is provided with a plurality of supporting legs.

[0013] The utility model has the following beneficial effects: the rotation of the rotating drum drives the upper connecting rod, the lower connecting rod, the stirring rod and the rotating shaft to rotate as a whole to stir the slurry in the storage tank, and the movement of the rotating drum relative to the rotating shaft is controlled to adjust the distance between the two stirring rods, thereby changing the stirring range, which can play a good anti-sedimentation role; after the storage of the slurry is completed, the stirring rod is adjusted so that its outer side contacts the inner wall of the storage tank, and the rotation of the stirring rod can scrape off the slurry attached to the inner wall of the storage tank to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial cross-sectional view of the utility model;

[0015] Figure 2 for Figure 1 Exploded view of the internal structure;

[0016] Figure 3 for Figure 1 A partial enlarged view of point A in the middle;

[0017] Figure 4 for Figure 1 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0019] like Figures 1 to 4 As shown, the flotation device for gold concentrate recovery of the present invention has a rotating drum 21 and a rotating shaft 22 correspondingly provided in the upper and lower parts of the storage tank 10. Stirring rods 23 are provided on both sides of the rotating drum 21 and the rotating shaft 22. An upper connecting rod 24 is hinged on the rotating drum 21, and a lower connecting rod 25 is hinged on the rotating shaft 22. The ends of the upper connecting rod 24 and the lower connecting rod 25 are hinged to the middle part of the stirring rod 23. The rotating drum 21 can move relative to the rotating shaft 22 to adjust the distance between the two stirring rods 23.

[0020] The rotation of the drum 21 drives the upper connecting rod 24, the lower connecting rod 25, the stirring rod 23 and the rotating shaft 22 to rotate as a whole to stir the slurry in the storage tank 10. The movement of the drum 21 relative to the rotating shaft 22 is controlled to adjust the distance between the two stirring rods 23, thereby changing the stirring range, which can play a good anti-sedimentation role. After the storage of the slurry is completed, the stirring rod 23 is adjusted to its outer side in contact with the inner wall of the storage tank 10. The rotation of the stirring rod 23 can scrape off the slurry attached to the inner wall of the storage tank 10 to avoid waste.

[0021] Of course, the stirring rods 23 may also be provided with an even number, such as four or six, to improve stirring efficiency. Protruding stirring structures may also be provided on the inner side of the stirring rods 23, and at appropriate locations on the upper connecting rods 24 and lower connecting rods 25. Furthermore, the upper connecting rods 24 and lower connecting rods 25 may also have stirring functions to improve stirring efficiency. The upper connecting rods 24 and lower connecting rods 25 are of the same length, and can be adjusted so that the outer sides of the stirring rods 23 contact the inner wall of the storage tank 10.

[0022] As the stirring rod 23 is adjusted until its outer side contacts the inner wall of the storage tank 10, the stirring rod 23 gradually moves downward, allowing the stirring rod 23 to primarily scrape the lower portion of the inner wall of the storage tank 10, where a large amount of slurry is adhered, making the scraping more thorough and targeted. Furthermore, the bottom of the storage tank 10 can be configured as an inverted cone to facilitate the discharge of the slurry.

[0023] Preferably, the top of the storage tank 10 is open and provided with a cover body 26, a support frame 27 is installed on the cover body 26, a motor 28 is provided on the support frame 27, the output end of the motor 28 is connected to a square shaft 29, the square shaft 29 is inserted into a square hole 30 opened on the rotating drum 21, a through hole 31 is opened on the cover body 26, and the rotating drum 21 is inserted into the through hole 31.

[0024] The output end of the motor 28 drives the square shaft 29 to rotate, and drives the rotating drum 21 and the stirring rod 23 to rotate.

[0025] The support frame 27 is mounted on the cover 26 via bolts, allowing for a detachable connection between the support frame 27 and the cover 26. The output end of the motor 28 is connected to the square shaft 29 via a coupling. The through hole 31 is a circular hole, and the outer surface of the drum 21 is also a matching circular hole, allowing the drum 21 to move axially and rotate circumferentially within the through hole 31.

[0026] Preferably, a telescopic assembly 32 is provided on the support frame 27 , a connecting ring 33 is rotatably provided on the rotating drum 21 , a connecting block 34 is formed on one side of the connecting ring 33 , and the output end of the telescopic assembly 32 is connected to the connecting block 34 .

[0027] The output end of the telescopic assembly 32 is telescopic, and drives the rotating drum 21 to slide along the square shaft 29 through the connecting block 34 and the connecting ring 33 , so that the rotating drum 21 can move relative to the rotating shaft 22 .

[0028] Among them, a connecting hole is opened on the connecting block 34, and the output end of the telescopic component 32 can be inserted into the connecting hole and locked by the clamping blocks 35 on the upper and lower sides to realize the detachable connection between the output end of the telescopic component 32 and the connecting block 34.

[0029] The motor 28 and the telescopic assembly 32 are both equipped with corresponding power supplies and control modules to control their respective start and stop functions. The telescopic assembly 32 can be a structure with telescopic function, such as a pneumatic cylinder or a hydraulic cylinder.

[0030] Preferably, see Figure 1 、 Figure 4 A mounting ring 36 is formed on the inner bottom surface of the storage tank 10 , and the rotating shaft 22 is rotatably and sealedly connected to the mounting ring 36 .

[0031] The rotating shaft 22 and the mounting ring 36 are rotationally sealed via the sealing ring 37, the bearing, and the mounting ring 36. Specifically, the sealing ring 36 is disposed above the bearing, and the outer sides of the sealing ring 36 and the bearing are connected to the inner side of the mounting ring 36, and the inner sides of the sealing ring 36 and the bearing are connected to the outer side of the rotating shaft 22.

[0032] Preferably, see Figure 1 、 Figure 2 A connecting seat 38 is provided in the middle of the stirring rod 23, and the ends of the upper connecting rod 24 and the lower connecting rod 25 are hinged to the two sides of the connecting seat 38 respectively. A torsion spring 39 is provided between the upper connecting rod 24 and the connecting seat 38 and between the lower connecting rod 25 and the connecting seat 38.

[0033] During the movement of the stirring rod 23 , the stirring rod 23 may wobble relative to the connecting seat 38 . However, under the action of the torsion spring 39 , the stirring rod 23 tends to remain in a vertical state.

[0034] Preferably, see Figure 2 The outer side of the stirring rod 23 is provided with a plurality of scraping grooves 40 .

[0035] The outer side of the stirring rod 23 may be provided with a soft wear-resistant layer made of rubber or silicone. The scraping grooves 40 may be arranged vertically or obliquely, and adjacent scraping grooves 40 are smoothly connected to each other, so as to facilitate scraping away the slurry attached to the inner wall of the storage tank 10 and reduce the slurry residue in the scraping grooves 40.

[0036] Preferably, a feed pipe 11 is provided on one side of the storage tank 10 and a discharge pipe 12 is provided at the bottom.

[0037] Control valves are installed on the feed pipe 11 and the discharge pipe 12, respectively. The feed pipe 11 is connected to the ball mill's discharge port to deliver the ground slurry to the storage tank 10 for storage. During this time, suitable reagents, such as collectors, foaming agents, oxidizers, reducing agents, or oxalic acid, can be added to control the pH and viscosity of the slurry, making it more suitable for flotation separation. A stirring rod 23 is used to stir the slurry, accelerating mixing of the slurry and the reagents. The discharge pipe 12 is connected to the flotation cell and pumps the slurry to the flotation cell for flotation.

[0038] Preferably, a plurality of supporting legs 13 are provided at the bottom of the storage tank 10 .

[0039] The working principle of this utility model is as follows:

[0040] The output end of the motor 28 drives the square shaft 29 and the rotating drum 21 to rotate, and drives the upper connecting rod 24, the lower connecting rod 25, the stirring rod 23 and the rotating shaft 22 to rotate as a whole to stir the slurry in the storage tank 10; the output end of the telescopic assembly 32 is telescopic, and drives the rotating drum 21 to slide along the square shaft 29 through the connecting block 34 and the connecting ring 33, so that the rotating drum 21 can move relative to the rotating shaft 22 to adjust the distance between the two stirring rods 23, thereby changing the stirring range as needed, which can play a good anti-sedimentation role; when the storage of the slurry is completed, the stirring rod 23 is adjusted to its outer side to contact the inner wall of the storage tank 10. At this time, the stirring rod 23 rotates to scrape off the slurry attached to the inner wall of the storage tank 10 to avoid waste.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flotation device for recovering gold concentrate, characterized in that: A rotating drum (21) and a rotating shaft (22) are correspondingly provided in the storage tank (10) at the upper and lower parts. A stirring rod (23) is provided on both sides of the rotating drum (21) and the rotating shaft (22). An upper connecting rod (24) is hinged on the rotating drum (21), and a lower connecting rod (25) is hinged on the rotating shaft (22). The ends of the upper connecting rod (24) and the lower connecting rod (25) are hinged to the middle part of the stirring rod (23). The rotating drum (21) can move relative to the rotating shaft (22) to adjust the distance between the two stirring rods (23).

2. The flotation device for recovering gold concentrate according to claim 1, characterized in that: The top of the storage tank (10) is open and provided with a cover (26), a support frame (27) is mounted on the cover (26), a motor (28) is provided on the support frame (27), an output end of the motor (28) is connected to a square shaft (29), the square shaft (29) is inserted into a square hole (30) provided on the rotating drum (21), a through hole (31) is provided on the cover (26), and the rotating drum (21) is inserted into the through hole (31).

3. The flotation device for recovering gold concentrate according to claim 2, characterized in that: The support frame (27) is provided with a telescopic assembly (32), a connecting ring (33) is rotatably provided on the rotating drum (21), a connecting block (34) is formed on one side of the connecting ring (33), and the output end of the telescopic assembly (32) is connected to the connecting block (34).

4. The flotation device for recovering gold concentrate according to claim 1, characterized in that: A mounting ring (36) is formed on the inner bottom surface of the storage tank (10), and the rotating shaft (22) is rotatably and sealingly connected to the mounting ring (36).

5. The flotation device for recovering gold concentrate according to claim 1, characterized in that: A connecting seat (38) is provided in the middle of the stirring rod (23), and the ends of the upper connecting rod (24) and the lower connecting rod (25) are hinged to the two sides of the connecting seat (38), respectively. A torsion spring (39) is provided between the upper connecting rod (24) and the connecting seat (38), and between the lower connecting rod (25) and the connecting seat (38).

6. The flotation device for recovering gold concentrate according to claim 1, characterized in that: A plurality of scraping grooves (40) are provided on the outer side of the stirring rod (23).

7. The flotation device for recovering gold concentrate according to claim 1, characterized in that: A feed pipe (11) is provided on one side of the storage tank (10), and a discharge pipe (12) is provided on the bottom.

8. The flotation device for recovering gold concentrate according to claim 1, characterized in that: The bottom of the storage tank (10) is provided with a plurality of supporting legs (13).

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