Flotation tank

Abstract

The utility model discloses a flotation tank, which belongs to the technical field of flotation equipment and comprises a tank body and a stirring mechanism, the tank body is provided with a feed port, a discharge port and a flotation port, the flotation port is used for leading out flotation froth, the stirring mechanism comprises a rotating rod, the rotating rod is vertically arranged in the tank body, and the top end of the rotating rod is in transmission connection with a motor. The rotating rod is provided with a stirring rod, the stirring rod and the rotating rod are provided with communicated cavities, the stirring rod is provided with an air hole, an air pipe is embedded in the bottom of the tank body, and the end part of the air pipe is communicated with the bottom of the rotating rod. According to the utility model, the rotating rod and the stirring rod are provided with the communicated cavities, external supplied air sequentially penetrates through the rotating rod and the stirring rod and is finally sprayed into ore pulp through the air holes formed in the stirring rod, and the stirring rod rotates along with the rotating rod and sprays air into the ore pulp, so that bubbles and the ore pulp are fully mixed, and the flotation efficiency and quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flotation equipment, in particular to a flotation tank. Background Art

[0002] In the mineral processing industry, flotation technology is an indispensable link. Whether it is metal or non-metallic minerals, flotation operation is a very important sorting link. During the flotation process, aeration is a necessary condition to support the flotation operation. Without an air supply system, the foam will not float on the liquid surface.

[0003] Chinese utility model patent (CN220195160U) A simple flotation machine includes a flotation cylinder, a scraper, an air inlet pipe and a guide cylinder. A rotating motor is installed in the middle position of the top of the flotation cylinder. A rotating rod is installed at the output shaft end of the rotating motor. A ventilation groove is arranged inside the bottom of the rotating rod. Hollow cylinders are connected to the bottom ends of both sides of the rotating rod. The rotating rod and the hollow cylinder are fixedly connected. This utility model patent improves the efficiency of mineralization foam generation by arranging an aeration plate in the flotation cylinder, and the external air supply is introduced from the bottom of the flotation cylinder through the aeration plate. However, the aeration plate is arranged at the bottom of the flotation cylinder. During the flotation process, the uniformity of the bubble distribution in the flotation cylinder is insufficient, which is not conducive to the full mixing of the bubbles and the ore pulp, resulting in low flotation efficiency and quality. Utility Model Content

[0004] The utility model aims to provide a flotation tank, aiming to solve the problems existing in the prior art in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A flotation tank comprises a tank body and a stirring mechanism. The tank body is provided with a feed port, a discharge port and a flotation port. The flotation port is used to guide out flotation foam. The stirring mechanism comprises a rotating rod, which is vertically arranged in the tank body. The top end of the rotating rod is connected to a motor, and the bottom end is rotatably matched with the bottom surface of the tank body. The rotating rod is provided with a stirring rod. The stirring rod and the rotating rod have a connected cavity. The stirring rod is provided with an air hole. An air pipe is embedded in the bottom of the tank body, and the end of the air pipe is connected with the bottom of the rotating rod.

[0007] Furthermore, the stirring rod adopts a triangular prism structure, and has a first side surface located horizontally at the upper part, and a second side surface and a third side surface inclined at both sides of the first side surface, and the air holes are evenly distributed on the second side surface and the third side surface.

[0008] Furthermore, a flat plate is arranged on the top of the first side surface, and the edges on both sides of the flat plate extend out of the edges on both sides of the first side surface, so that the extended parts on both sides of the flat plate form a "V"-shaped groove structure with the second side surface and the third side surface respectively.

[0009] Furthermore, the stirring rods are vertically spaced apart in multiple layers along the rotating rod, and each layer of stirring rods is evenly arranged around the rotating rod.

[0010] Furthermore, the rotating rod is provided with a solenoid valve for controlling the on / off of its internal cavity, and the solenoid valve is located between adjacent upper and lower stirring rods.

[0011] Furthermore, a guide tube is arranged in the tank body, and the guide tube is a truncated cone structure. The bottom edge of the guide tube is connected to the inner wall of the tank body to form an annular surface. The top size of the guide tube is smaller than the bottom size. The rotating rod is provided with a scraper, and the scraper is located at the top of the guide tube.

[0012] Furthermore, the annular surface is arranged to be inclined, and the flotation port is located at the lower end of the annular surface.

[0013] Compared with the shortcomings and deficiencies of the prior art, the utility model has the following beneficial effects.

[0014] 1. The utility model provides a flotation tank, wherein a stirring mechanism is arranged on the tank body, a motor drives the stirring rod to rotate through a rotating rod, a connecting cavity is arranged inside the rotating rod and the stirring rod, an external air supply is sequentially introduced into the rotating rod and the stirring rod through an air pipe, and the slurry is sprayed into the tank body through an air hole arranged on the stirring rod, and the stirring rod rotates and sprays gas during the rotation of the rotating rod, which is beneficial to the full mixing of bubbles and the slurry, and the stirring rod is vertically arranged in multiple layers along the rotating rod, so that bubbles are introduced along different heights, which is beneficial to the uniform distribution of bubbles in the tank body, thereby improving the flotation quality.

[0015] 2. The stirring rod adopts a triangular prism structure, with the first side surface horizontally arranged at the upper part, and the second side surface and the third side surface on both sides are arranged at an angle respectively. The air holes arranged on the second side surface and the third side surface make the air flow spray into the slurry downward at an angle. A flat plate is arranged on the top of the first side surface, and a "V"-shaped groove structure is formed between the flat plate and the second side surface and the third side surface on both sides respectively, which is conducive to improving the stirring effect when the stirring rod rotates.

[0016] 3. A solenoid valve is arranged between the upper and lower adjacent stirring rod layers of the rotating rod, and the on and off of the cavity at the corresponding position of the rotating rod is controlled by the solenoid valve, thereby controlling the amount of ventilation of the stirring rod, which is conducive to accurately controlling the air intake area in the tank body, thereby adjusting the air intake volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal structure of the tank body in the utility model.

[0018] Figure 2 It is a schematic diagram of the internal structure of the transfer rod and the stirring rod in the utility model.

[0019] Figure 3 It is a schematic diagram of the stirring rod in the utility model in a triangular prism structure.

[0020] Figure 4 It is a structural schematic diagram of a stirring rod provided with a flat plate in the utility model.

[0021] Figure 5 It is a structural schematic diagram of a transfer rod provided with a solenoid valve in the utility model.

[0022] In the figure: 1-tank body; 2-feeding port; 3-discharging port; 4-flotation port; 5-guide tube; 6-ring surface; 7-motor; 8-rotating rod; 9-stirring rod; 10-air hole; 11-scraper; 12-air pipe; 13-connecting rod; 14-first side; 15-second side; 16-third side; 17-"V"-shaped groove; 18-solenoid valve; 19-plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Reference Figure 1 and Figure 2A flotation tank comprises a tank body 1 and a stirring mechanism. The side wall of the tank body 1 is provided with a feed port 2, a discharge port 3 and a flotation port 4. The feed port 2 is used to introduce slurry into the tank body 1, and the discharge port 3 is used to discharge the slurry after flotation. The feed port 2 and the discharge port 3 are respectively located on opposite sides of the tank body 1, and the feed port 2 is higher than the discharge port 3. The flotation port 4 is arranged at the upper part of the side wall of the tank body 1, and is used to discharge the flotation foam. A guide tube 5 is arranged in the tank body 1. The guide tube 5 is a truncated cone structure. The bottom edge of the guide tube 5 is connected to the inner wall of the tank body 1, and the bottom opening size is larger than the top opening size, so that the foam generated in the tank body 1 is gathered to the top opening of the guide tube 5. The flotation port 4 is located on one side of the bottom of the guide tube 5. Preferably, the part where the bottom edge of the guide tube 5 is connected to the side wall of the tank body 1 forms a ring surface 6, and the ring surface 6 is inclined. The flotation port 4 is located at the lower end of the ring surface 6, so that the flotation foam is quickly discharged; the stirring mechanism comprises a motor 7 , a rotating rod 8 and a stirring rod 9, the motor 7 is arranged on the outside of the top of the tank body 1, the rotating rod 8 is vertically arranged in the central position of the tank body 1, the top of the rotating rod 8 is transmission-connected with the output end of the motor 7, the bottom of the rotating rod 8 is rotationally matched with the bottom of the tank body 1, the stirring rod 9 is vertically arranged in multiple layers at different heights along the rotating rod 8, the number of stirring rods 9 in each layer is preferably 4-5, and each layer of stirring rods 9 is uniformly arranged around the rotating rod 8, the rotating rod 8 passes through the guide tube 5, and the stirring rod 9 is located below the guide tube 5, The rotating rod 8 is provided with a scraper 11 at the top opening of the guide tube 5. The scraper 11 is evenly arranged along the circumference of the rotating rod 8. The rotating rod 8 drives the scraper 11 to rotate, so as to scrape the foam floated to the top opening of the guide tube 5 to the top surface of the side wall of the guide tube 5, and the foam flows into the flotation port 4 along the top surface of the side wall of the guide tube 5. The rotating rod 8 and the stirring rod 9 both have a connected cavity. The stirring rod 9 is evenly provided with air holes 10. The bottom of the tank body 1 is embedded with an air pipe 12, and the air pipe 12 is connected to the bottom of the rotating rod 8. Air is supplied to the rotating rod 8 through the air pipe 12, and the air flow flows into the stirring rod 9 and sprays into the slurry in the tank body 1 through the air hole 10. The motor 7 drives the stirring rod 9 to rotate through the rotating rod 8, which is conducive to the full mixing of bubbles and slurry, thereby improving the flotation quality.

[0025] In one embodiment, referring to Figure 3 The stirring rod 9 adopts a triangular prism structure. The stirring rod 9 has a first side surface 14 horizontally arranged at the top, and a second side surface 15 and a third side surface 16 respectively arranged at both sides of the first side surface 14 and inclined. The air holes 10 are respectively arranged on the second side surface 15 and the third side surface 16, so that the air flow is sprayed into the slurry obliquely downward along the air holes 10. The end of the stirring rod 9 is connected with the rotating rod 8 through the connecting rod 13. The air flow is sprayed into the slurry obliquely and cooperates with the rotation of the stirring rod 9, which is conducive to promoting the full mixing of bubbles and the slurry.

[0026] As a further improvement of the above embodiment, refer to Figure 4A flat plate 19 is arranged on the top of the first side surface 14. The length of the flat plate 19 is the same as that of the first side surface 14, and the width is greater than that of the first side surface, so that the edges of the flat plate 19 on both sides extend out of the edges of the first side surface 14 on both sides. The extended parts on both sides of the flat plate 19 are respectively enclosed with the second side surface 15 and the third side surface 16 to form a "V"-shaped groove 17 structure, which is conducive to improving the propulsion force of the stirring rod 9 on the slurry when rotating, so that the slurry and the bubbles are fully mixed, and the plate-like structure of the flat plate 19 and its extended part are conducive to further cutting the slurry, thereby improving the flotation effect.

[0027] In one embodiment, referring to Figure 5 The rotating rod 8 is located between the upper stirring rod 9 and the lower stirring rod 9, and an electromagnetic valve 18 is set. The electromagnetic valve 18 is used to control the on and off of the internal cavity of the rotating rod 8. The rotating rods between the upper and lower adjacent stirring rods 9 are respectively provided with electromagnetic valves 18. The number of stirring rods 9 that are ventilated is controlled by the electromagnetic valve 18, which is convenient for accurately regulating the air intake in the tank body 1.

[0028] When the flotation tank is in use, the ore pulp is introduced into the tank body 1 along the feed port 2, the air pipe 12 introduces gas into the rotating rod 8, the gas is introduced into the stirring rod 9 and sprayed into the ore pulp through the air hole 10, the motor 7 is started, the motor 7 drives the rotating rod 8 to rotate, the rotating rod 8 drives the stirring rod 9 and the scraper 11 to rotate respectively, the stirring rod 9 rotates to make the bubbles and the ore pulp fully mixed, the flotation foam passes upward through the guide tube 5 and gathers to the top of the guide tube 5, the scraper 11 rotates to scrape the foam to the top surface of the side wall of the guide tube 5, and the foam is discharged from the tank body 1 through the flotation port 4.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flotation tank, comprising a tank body (1) and a stirring mechanism, wherein the tank body (1) is provided with a feed inlet (2), a discharge outlet (3) and a flotation outlet (4), wherein the flotation outlet (4) is used to discharge flotation foam, and wherein: The stirring mechanism comprises a rotating rod (8), the rotating rod (8) being vertically arranged in the tank body (1), the top end of the rotating rod (8) being transmission-connected to the motor (7), the bottom end of which is rotationally matched with the bottom surface of the tank body (1), the rotating rod (8) being provided with a stirring rod (9), the stirring rod (9) and the rotating rod (8) having a cavity connected thereto, the stirring rod (9) being provided with an air hole (10), an air pipe (12) being embedded in the bottom of the tank body (1), the end of the air pipe (12) being connected to the bottom of the rotating rod (8).

2. The flotation tank according to claim 1, characterized in that: The stirring rod (9) adopts a triangular prism structure, and has a first side surface (14) located horizontally at the upper part, and a second side surface (15) and a third side surface (16) arranged obliquely on both sides of the first side surface (14), and the air holes (10) are evenly distributed on the second side surface (15) and the third side surface (16).

3. The flotation tank according to claim 2, characterized in that: A flat plate (19) is arranged on the top of the first side surface (14), and the edges on both sides of the flat plate (19) extend beyond the edges on both sides of the first side surface (14), so that the extended portions on both sides of the flat plate (19) respectively form a "V"-shaped groove structure with the second side surface (15) and the third side surface (16).

4. The flotation tank according to claim 2 or 3, characterized in that: The stirring rods (9) are arranged in multiple layers at intervals vertically along the rotating rod (8), and each layer of stirring rods (9) is evenly arranged in the circumferential direction around the rotating rod (8).

5. The flotation tank according to claim 4, characterized in that: The rotating rod (8) is provided with a solenoid valve (18) for controlling the opening and closing of the cavity inside the rotating rod (8), and the solenoid valve (18) is located between adjacent upper and lower stirring rods (9).

6. The flotation tank according to claim 1, characterized in that: A guide tube (5) is arranged inside the tank body (1), the guide tube (5) being in a truncated cone structure, the bottom edge of the guide tube (5) being connected to the inner wall of the tank body (1) to form an annular surface (6), the top size of the guide tube (5) being smaller than the bottom size, the rotating rod (8) being provided with a scraper (11), the scraper (11) being located at the top of the guide tube (5).

7. The flotation tank according to claim 6, characterized in that: The annular surface (6) is arranged in an inclined manner, and the flotation port (4) is located at the lower end of the annular surface (6).

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