Flotation device for gold ore dressing

Abstract

The utility model belongs to the technical field of gold ore flotation, and particularly discloses a flotation device for gold ore dressing, which comprises a flotation box, a liquid medicine box and an air pump, the flotation box is divided into an upper box and a lower box, the diameter of the upper box is larger than that of the lower box, a raised water retaining weir is fixedly arranged on the upper edge of the lower box, and the liquid medicine box is connected with the air pump. The top of the upper box is fixedly connected with a feeding box, the top of the feeding box is communicated with a feeding hopper, a vibrating screen and a crushing box are arranged in the feeding box, a crushing roller is rotationally arranged in the crushing box, an electric cylinder is fixedly connected in the upper box, and a water retaining ring is fixedly connected to a moving terminal of the electric cylinder. The feeding box is arranged, the vibrating screen and the smashing box are arranged in the feeding box, during feeding, gold ore powder passes through the vibrating screen, caked gold ore falls into the smashing box to be smashed, the feeding efficiency is improved, the water retaining weir is arranged, and during flotation, the drainage paddle drives foam containing the ore powder to the bottom of the upper box through rotation.

Description

Technical Field

[0001] This utility model belongs to the field of gold ore flotation technology, specifically a flotation device for gold ore beneficiation. Background Technology

[0002] Flotation involves using surfactants—foaming agents—that generate a large number of bubbles. When air is introduced into water or when agitation causes air to enter the water, the hydrophobic end of the surfactant oriented towards the air bubble at the gas-liquid interface, while the hydrophilic end remains in the solution, forming a bubble. Another surfactant (usually cationic surfactants, but also including aliphatic amines) acts as a collector, adsorbing onto the surface of the solid mineral powder. This adsorption is selective depending on the mineral properties. The basic principle is to utilize lattice defects on the crystal surface, allowing the outward-facing hydrophobic end to partially insert into the bubble. In this way, during the flotation process, the bubble may carry away the desired mineral powder, achieving the purpose of mineral beneficiation.

[0003] Chinese patent "A device for improving the flotation rate of gold ore", patent number: CN202122956163.5, provides a device for improving the flotation rate of gold ore. By screening the slurry, the slurry entering the flotation chamber is uniform, avoiding the entry of lumpy minerals into the flotation chamber and improving the flotation efficiency. By passing through a gas filter layer, substances in the air that affect flotation are filtered out to avoid affecting the flotation.

[0004] When implementing this technology, we found some problems that hindered its practicality. For example, the gold ore crushing roller group is directly set below the feed hopper to prevent lumpy minerals from entering the flotation chamber. However, in actual production, the amount of lumpy minerals in the powdered ore is relatively small, only about 2% of the total. Since all the minerals pass through the crushing device, the feeding efficiency will be significantly reduced, and it may also affect the service life of the crushing roller shaft. In addition, the efficiency of harvesting the top gold ore powder is low. Utility Model Content

[0005] To address the above technical problems, this utility model provides a flotation device for gold ore beneficiation.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is as follows: a flotation device for gold ore beneficiation, including a flotation box, a support connected to the bottom of the flotation box, a reagent tank and an air pump. The flotation box is divided into an upper box and a lower box, the diameter of the upper box is larger than the diameter of the lower box, a raised water-retaining weir is fixedly provided on the upper edge of the lower box, a feed box is fixedly connected to the top of the upper box, a feed hopper is connected to the top of the feed box, a vibrating screen and a crushing box are arranged inside the feed box, a crushing roller is rotatably arranged inside the crushing box, an electric cylinder is fixedly connected inside the upper box, and a water-retaining ring is fixedly connected to the moving terminal of the electric cylinder. An upper motor is fixedly connected to the top of the upper box. The shaft of the upper motor passes through the upper box and is fixedly connected to a drainage shaft. A drainage paddle is fixedly connected to the drainage shaft. The height of the drainage paddle is the same as that of the water-retaining weir. A water inlet pipe is fixedly connected inside the lower box. The water inlet pipe has a drainage hole. The medicine tank is connected to the water inlet pipe through a water pump and a water pipe. An air inlet pipe is fixedly connected inside the lower box. An air nozzle is provided at the lower part of the air inlet pipe. The air pump is connected to the air inlet pipe through an air pipe. A first discharge port is connected to the lower part of the upper box. A second discharge port is connected to the bottom of the lower box. A slide valve is provided on the second discharge port.

[0007] Furthermore, a lower motor is fixedly connected to the center of the bottom of the lower box, and the rotating shaft of the lower motor passes through the lower box and is fixedly connected to a stirring shaft, on which a stirring paddle is fixedly connected.

[0008] Furthermore, a fixing rod is fixedly connected inside the lower box, and a bearing ring is fixedly connected to the center of the fixing rod. The end of the drainage shaft is rotatably connected to the bearing ring, and the end of the stirring shaft is rotatably connected to the bearing ring.

[0009] Furthermore, a crushing motor is fixedly connected to the side of the feeding box, and the rotating shaft of the crushing motor passes through the side wall of the feeding box and the crushing box and is fixedly connected to the crushing roller.

[0010] Furthermore, a lid is rotatably connected to the top of the upper box.

[0011] This utility model has the following advantages compared with the prior art:

[0012] This utility model is equipped with a feeding box, and a vibrating screen and a crushing box are installed inside the feeding box. When feeding, the gold ore powder passes through the vibrating screen, and the agglomerated gold ore falls into the crushing box for crushing, which improves the feeding efficiency. A water-retaining weir is installed. When flotation is performed, the drainage paddle drives the foam containing mineral powder to the bottom of the upper box by rotation and discharges it from the first discharge port, which improves the collection efficiency of mineral powder. A water-retaining ring is installed. When stirring and air intake are performed, the water-retaining ring is lowered to prevent excessive water from being discharged from the first discharge port. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 3 This is a side view of the present invention.

[0016] The components are as follows: 1. Flotation box, 2. Upper box, 3. Lower box, 4. Electric cylinder, 5. Feed box, 6. Feed hopper, 7. Vibrating screen, 8. Upper motor, 9. Crushing box, 10. Crushing roller, 11. Water baffle ring, 12. Water baffle weir, 13. First discharge port, 14. Fixing rod, 15. Bearing ring, 16. Air pipe, 17. Air pump, 18. Slide valve, 19. Second discharge port, 20. Lower motor, 21. Support, 22. Chemical tank, 23. Water pump, 24. Drainage shaft, 25. Drainage paddle, 26. Stirring shaft, 27. Stirring paddle, 28. Water inlet pipe, 29. Air inlet pipe, 30. Air nozzle, 31. Crushing motor, 32. Box cover. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figures 1-3 The flotation device for gold ore beneficiation shown includes a flotation tank 1, a support 21 connected to the bottom of the flotation tank 1, a reagent tank 22, and an air pump 17. The flotation tank 1 is divided into an upper tank 2 and a lower tank 3. The diameter of the upper tank 2 is larger than that of the lower tank 3. A raised water-retaining weir 12 is fixedly installed on the upper edge of the lower tank 3. A feed box 5 is fixedly connected to the top of the upper tank 2. A feed hopper 6 is connected to the top of the feed box 5. A vibrating screen 7 and a crushing box 9 are installed inside the feed box 5. A crushing roller 10 is rotatably installed inside the crushing box 9. An electric cylinder 4 is fixedly connected inside the upper tank 2. A water-retaining ring 11 is fixedly connected to the moving terminal of the electric cylinder 4. An upper motor 8 is fixedly connected to the top of the upper tank 2. The upper motor 8 has a rotating shaft that passes through the upper box 2 and is fixedly connected to a drainage shaft 24. A drainage paddle 25 is fixedly connected to the drainage shaft 24. The height of the drainage paddle 25 is the same as that of the water-blocking weir 12. A water inlet pipe 28 is fixedly connected inside the lower box 3. A drainage hole is provided on the water inlet pipe 28. The medicine tank 22 is connected to the water inlet pipe 28 through a water pump 23 and a water pipe. An air inlet pipe 29 is fixedly connected inside the lower box 3. An air nozzle 30 is provided at the lower part of the air inlet pipe 29. An air pump 17 is connected to the air inlet pipe 29 through an air pipe 16. A first discharge port 13 is connected to the lower part of the upper box 2. A second discharge port 19 is connected to the bottom of the lower box 3. A slide valve 18 is provided on the second discharge port 19.

[0019] Among them, electric cylinder 4 is a ball screw electric cylinder.

[0020] To facilitate stirring, a lower motor 20 is fixedly connected to the center of the bottom of the lower box 3. The shaft of the lower motor 20 passes through the lower box 3 and is fixedly connected to a stirring shaft 26. A stirring paddle 27 is fixedly connected to the stirring shaft 26.

[0021] In order to ensure the stable rotation of the drainage shaft 24 and the stirring shaft 25, a fixing rod 14 is fixedly connected inside the lower box 3. A bearing ring 15 is fixedly connected to the center of the fixing rod 14. The end of the drainage shaft 24 is rotatably connected to the bearing ring 15, and the end of the stirring shaft 26 is rotatably connected to the bearing ring 15.

[0022] To facilitate crushing, a crushing motor 31 is fixedly connected to the side of the feed box 5. The shaft of the crushing motor 31 passes through the side wall of the feed box 5 and the crushing box 9 and is fixedly connected to the crushing roller 10.

[0023] For ease of maintenance, a cover 32 is rotatably connected to the top of the upper box 2.

[0024] The specific working process of this utility model is as follows:

[0025] During operation, gold ore powder is fed into the feed box 5 from the feed hopper 6. The vibrating screen 7 is then turned on, and the powder passes directly through the screen into the flotation box 1. Lumpy ore falls from the end of the vibrating screen 7 into the crushing box 9. At this time, the crushing motor 31 rotates, driving the crushing roller 10 to crush the lumpy ore, which then falls into the flotation box 1. Flotation reagents are added to the reagent tank 22, and the water pump 23 is turned on. The reagents enter the lower box 3 through the drain hole on the inlet pipe 28. The air pump 17 introduces gas into the air inlet pipe 29 through the air pipe 16, and the gas... The nozzle 30 discharges into the lower tank 3. The lower motor 20 drives the stirring shaft 26 to rotate, and the stirring paddle 27 stirs the gold ore slurry. At the same time, the air bubbles from the air nozzle 30 bring the useful gold ore powder to the surface of the liquid under the action of the liquid. At this time, the water pump 23, air pump 17 and lower motor 20 are stopped. The electric cylinder 4 lifts the water baffle ring 11, the upper motor 8 is turned on, the drainage shaft 24 rotates, and the drainage paddle 25 discharges the surface liquid with air bubbles from the water baffle 12 and then discharges it from the first discharge port 13. During this process, the tank cover 32 is opened to observe the water level of the liquid.

[0026] Since it is impossible to complete all the flotation in one go, the reagent can be added multiple times and air bubbles can be introduced to continue the above operation to complete the flotation of the mineral. After the flotation is completed, the slide valve 18 is opened to discharge the waste material from the second discharge port 19.

Claims

1. A flotation device for gold ore beneficiation, comprising a flotation tank (1), wherein a support (21) is connected to the bottom of the flotation tank (1), and further comprising a reagent tank (22) and an air pump (17), characterized in that: The flotation tank (1) is divided into an upper tank (2) and a lower tank (3). The diameter of the upper tank (2) is larger than that of the lower tank (3). A raised water-blocking weir (12) is fixedly installed on the upper edge of the lower tank (3). A feed box (5) is fixedly connected to the top of the upper tank (2). A feed hopper (6) is connected to the top of the feed box (5). A vibrating screen (7) and a crushing box (9) are installed inside the feed box (9). A crushing roller (10) is rotatably installed inside the crushing box (9). An electric cylinder (4) is fixedly connected inside the upper tank (2). A water-blocking ring (11) is fixedly connected to the moving terminal of the electric cylinder (4). An upper motor (8) is fixedly connected to the top of the upper tank (2). The rotating shaft of the upper motor (8) passes through the upper tank (2) and is fixedly connected to a drainage shaft (24). A drainage paddle (25) is fixedly connected to the drainage shaft (24). The height of the drainage paddle (25) is the same as that of the water-blocking weir (12). A water inlet pipe (28) is fixedly connected inside the lower box (3). A drainage hole is provided on the water inlet pipe (28). The medicine tank (22) is connected to the water inlet pipe (28) through a water pump (23) and a water pipe. An air inlet pipe (29) is fixedly connected inside the lower box (3). An air nozzle (30) is provided at the lower part of the air inlet pipe (29). The air pump (17) is connected to the air inlet pipe (29) through an air pipe (16). A first discharge port (13) is connected to the lower part of the upper box (2). A second discharge port (19) is connected to the bottom of the lower box (3). A slide valve (18) is provided on the second discharge port (19).

2. The flotation apparatus for gold ore beneficiation according to claim 1, characterized in that: A lower motor (20) is fixedly connected to the bottom center of the lower box (3). The rotating shaft of the lower motor (20) passes through the lower box (3) and is fixedly connected to a stirring shaft (26). A stirring paddle (27) is fixedly connected to the stirring shaft (26).

3. The flotation apparatus for gold ore beneficiation according to claim 2, characterized in that: A fixing rod (14) is fixedly connected inside the lower box (3). A bearing ring (15) is fixedly connected to the center of the fixing rod (14). The end of the drainage shaft (24) is rotatably connected to the bearing ring (15). The end of the stirring shaft (26) is rotatably connected to the bearing ring (15).

4. The flotation apparatus for gold ore beneficiation according to claim 1, characterized in that: A crushing motor (31) is fixedly connected to the side of the feed box (5). The shaft of the crushing motor (31) passes through the side wall of the feed box (5) and the crushing box (9) and is fixedly connected to the crushing roller (10).

5. The flotation apparatus for gold ore beneficiation according to claim 1, characterized in that: The top of the upper box (2) is rotatably connected to a box cover (32).

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