High-efficiency aerated agitation and flotation integrated machine

Abstract

The application discloses a high-efficiency aerating, stirring and floating integrated machine, which comprises a flotation tank or barrel, a main shaft, stirring blades, a cover plate, a flow stabilizing plate, a sliding rod, a threaded disc, an aerating pipe and a motor.The main shaft is vertically arranged at the inner center of the flotation tank or barrel, the top end of the main shaft is connected with the motor, and the bottom end of the main shaft is connected with the stirring blades.The flow stabilizing plate is connected with the inner wall of the flotation tank or barrel through a movable bolt, a sliding rod is arranged above the flow stabilizing plate, the top of the sliding rod is connected with the threaded disc, and the bottom of the sliding rod is provided with a conical plug.The stirring force of the impeller is greatly strengthened, and the mineralized foam slurry can be naturally and uniformly dispersed to every corner of the flotation tank or barrel under strong stirring, and the amount of foam and the stirring intensity parameters required in each stage of production can be stably achieved by adjusting the amount of aeration and the corresponding impeller rotating speed according to the technical requirements of the flotation purpose, so that the flotation efficiency and effect are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of mineral flotation technology, and in particular to a high-efficiency integrated aeration and stirring flotation machine. Background Technology

[0002] With the advancement of technology, traditional specialized machinery and equipment are now used for flotation of ores. Flotation machines are primarily used after ore mining to float different minerals, offering advantages such as fast flotation speed, simple operation, and energy conservation. However, research on multi-functional, large-scale flotation equipment is relatively limited.

[0003] In traditional flotation machines, the impeller is encased within the flow-fixing teeth under the cover plate. During aeration or self-aspiration, the impeller mixes the gas and liquid, which is then ejected outwards through the gaps in the flow-fixing teeth. This mineralized foam jet has very weak impact force, especially under the pressure of the slurry, resulting in a very short range. It cannot disperse at the bottom of the flotation cell or tank, and it cannot effectively agitate the slurry at the bottom of the flotation cell or tank. Furthermore, since traditional flow stabilizers are usually fixed to the bottom of the flotation cell or tank, the agitation dead zone at the bottom of the flotation cell or tank is further aggravated, preventing flotation and bottom slurry agitation. When the slurry pressure at the bottom is high, the jet is essentially blocked, and the jet cannot disperse. The foam cannot be distributed throughout the bottom of the flotation cell or tank. Especially when traditional flotation machines are enlarged, more sediment particles are generated at the bottom that cannot be floated, resulting in very low flotation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency integrated aeration and stirring flotation machine to solve the problems and shortcomings mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A high-efficiency aerated and stirred flotation machine includes a flotation tank or barrel, a main shaft, stirring blades, a cover plate, a flow stabilizer, a slide bar, a threaded disc, an aeration pipe, and a motor. The top end of the main shaft is connected to the motor, which is connected to a frequency converter. The bottom end of the main shaft passes through the cover plate and is connected to the stirring blades. The flow stabilizer is connected to the inner wall of the flotation tank or barrel by a movable bolt. A slide bar is provided above the flow stabilizer, and the top of the slide bar is connected to the threaded disc. A conical plug is provided at the bottom of the slide bar. The bottom of the aeration pipe is connected to the cover plate. A slurry inlet is provided in the center of the cover plate to draw in slurry for gas-liquid mixing.

[0007] Furthermore, the stirring blades can be extended beyond or reach the outer edge of the cover plate.

[0008] Furthermore, the stirring blade has at least two blades.

[0009] Furthermore, at least two blades are fixedly connected to the bottom of the cover plate.

[0010] Furthermore, an annular foam collection trough is provided around the opening of the flotation cell or barrel.

[0011] Furthermore, the top end of the main shaft is connected to the motor via a belt and pulley, and the motor is connected to a frequency converter.

[0012] Furthermore, the flow stabilizer is provided in a total of 4 or more pieces.

[0013] Furthermore, the slide bar can move up and down via the threaded disc to control the movement of the flow stabilizer plate.

[0014] Beneficial effects:

[0015] 1. The high-efficiency aeration and stirring flotation integrated machine in this application increases the stirring force of the impeller by lengthening and exposing it without obstruction. Under the super stirring force, the stirring fluid can disperse the foam slurry to every corner of the flotation cell or barrel, and the mineral particles in the flotation cell or barrel will not settle under the action of strong stirring force. The bubbles will be fully dispersed at the bottom of the entire flotation cell or barrel and rise evenly, which can also generate vertical convection stirring. By increasing the aeration volume and stirring speed, a huge amount of flotation foam can be achieved. In summary, the flotation efficiency and effect can be greatly improved. In particular, for oxide ores that are not easy to float, large-volume flash flotation can be achieved, which is difficult to achieve in traditional flotation equipment.

[0016] 2. This application can also freely adjust the amount of foam by synchronizing the aeration volume with the stirring speed. The amount of flotation foam can be adjusted from trace to super-large, and the mineralized foam can be automatically discharged from the entire edge of the flotation cell or barrel.

[0017] 3. The flotation machine in this application can freely switch between stirring mode and flotation mode, which is very convenient for single-cell or open-circuit flotation, saving space and equipment, reducing the time and space required for stirring and slurry input into the flotation cell or tank. The integrated stirring and flotation of single cell or tank allows for quantitative slurry addition, facilitating fixed reagent dosage and simplifying operation, which plays a significant role in stabilizing flotation results and improving productivity. In particular, it is very convenient for scavenging reagent addition in the later stages of open-circuit flotation, without the need to switch stirring equipment. Reagents can be added directly from flotation mode to stirring mode on the machine, and then switched back to flotation mode after stirring, which is simple and fast, saving a lot of time, space, equipment, and processes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a front view of the cover plate in this invention.

[0020] The components include: 1. Flotation cell or tank; 2. Main shaft; 3. Flow stabilizer; 4. Stirring blades; 5. Cover plate; 6. First pulley; 7. Second pulley; 8. Motor; 9. Belt; 10. Air inlet pipe; 11. Threaded disc; 12. Slide rod; 13. Conical plug; 14. Movable bolt; 15. Foam collection tank; 16. Fixed ring; 17. Slurry inlet. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In the description of this invention, it should be noted that the terms "top," "bottom," "above," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In addition, unless otherwise specified, the components used in the following embodiments are all existing components, and their corresponding connection methods can also be achieved through conventional technical means, which will not be described in detail in this application.

[0024] Example

[0025] High-efficiency aerated agitation flotation integrated machine, such as Figure 1 and Figure 2As shown, the flotation system includes a flotation tank or barrel 1, a main shaft 2, stirring blades 4, a cover plate 5, a flow stabilizer 3, a sliding rod 12, a threaded disc 11, an air supply pipe 10, and a motor 8. The main shaft 2 is vertically positioned at the center of the flotation tank or barrel 1. The top end of the main shaft 2 is connected to the motor 8, and the bottom end of the main shaft 2 passes through the cover plate 5 and is connected to the stirring blades 4. The flow stabilizer 3 is connected to the inner wall of the flotation tank or barrel 1 by a movable bolt. A sliding rod 12 is positioned above the flow stabilizer 3. The top of the sliding rod 12 is connected to the threaded disc 11, and a conical plug 13 is positioned at the bottom of the sliding rod 12. The bottom of the air supply pipe 10 is connected to the cover plate 5. A wide slurry inlet 17 is provided in the center of the cover plate 5 for slurry intake and air-liquid mixing. The cover plate 5 adopts the cover plate used in existing flotation machines. At least two blades (not shown in the attached figure) are fixedly connected to the bottom of the cover plate 5, and the blades are spaced apart from the stirring blades 4 to ensure that they do not affect the normal operation of the stirring blades 4.

[0026] Specifically, the flotation machine in this application is driven by an electric motor to rotate the main shaft 2. The main shaft 2 drives the stirring blades 4 below to rotate and stir. A cover plate 5 with blades is also provided above the stirring blades 4. Therefore, when the stirring blades 4 rotate at high speed, a negative pressure will be generated below the cover plate 5, forming a strong stirring zone. The high-pressure gas transmitted from the air pipe 10 will be sucked into the strong stirring zone by the negative pressure, and then form a microbubble mixture with the slurry. The mixture is then thrown out of the stirring zone at high speed by the stirring blades 4 and finally dispersed throughout the entire flotation cell or tank 1, achieving a uniform and efficient flotation effect.

[0027] Furthermore, the flow stabilizer plate 3 is movable within the flotation cell or barrel 1. Specifically, one side of the flow stabilizer plate 3 is movably connected to the inner wall of the flotation cell or barrel 1, allowing the plate body of the flow stabilizer plate 3 to rotate left and right with the connection point as the center. Above the flow stabilizer plate 3, there is a slide rod 12 with a conical plug 13. The conical plug 13 is fixedly connected to the slide rod 12 by a fixing ring 16. The slide rod 12 can control whether the flow stabilizer plate 3 is close to or away from the inner wall of the flotation cell or barrel 1, thereby controlling whether the flotation machine is performing slurry flotation or slurry agitation.

[0028] The air inlet pipe 10 is fixed to the wall of the flotation cell or barrel 1. The flotation machine can freely adjust the air volume and stirring speed of the air inlet pipe 10 to change the amount of foam, so that the amount of flotation foam can reach the excess and thus automatically discharge mineralized foam from the periphery of the flotation cell or barrel 1.

[0029] Preferably, the stirring blade 4 can be extended beyond the outer edge of the cover plate 5, and the stirring blade 4 has at least two blades. By extending the stirring blade 4 without any obstruction, the stirring force of the stirring blade 4 in the flotation cell or tank is greatly increased.

[0030] Preferably, a foam collection tank 15 is also provided around the opening of the flotation cell or tank 1. The mineralized foam after flotation falls into the foam collection tank 15 and finally flows into the mineral pool.

[0031] Preferably, the diameter of the slurry inlet 17 is one-quarter the diameter of the cover plate 5. The cover plate 5 is a simple flat cover, allowing the length of the stirring blades 4 to extend beyond the cover plate 5, ensuring unimpeded stirring and resulting in a stronger stirring effect. Furthermore, regardless of the size of the flotation cell or tank 1, the stirring fluid can directly reach the edge of the flotation cell or tank 1. Since the aeration pipe 10 is fixed to the wall of the flotation cell or tank 1, and the cover plate 5 is fixedly connected to the bottom of the aeration pipe 10, the cover plate 5 can be fixed to the bottom of the flotation cell or tank 1.

[0032] Preferably, the top end of the spindle 2 is connected to the motor 8 via a belt 9 and a pulley, and the motor 8 is controlled by a frequency converter. Specifically, the output shaft of the motor 8 is connected to the first pulley 6, the first pulley 6 is connected to the second pulley 7 via the belt 9, and the second pulley 7 is connected to the top end of the spindle 2, so the motor 8 can drive the spindle 2.

[0033] Preferably, the flow stabilizer 3 has four or more sections. The slide bar 12 can move up and down via the threaded disc 11 to control the movement of the flow stabilizer 3.

[0034] When slurry flotation is required, the threaded disc 11 is rotated, causing the slide bar 12 to move downwards. This causes the conical plug 13 to abut against the inner wall of the flotation cell or barrel 1 and the flow stabilizer 3, fixing the position of the flow stabilizer 3 in the direction of the flow. At this time, the flow stabilizer 3 points to the center of the flotation cell or barrel 1, so that the flow stabilizer 3 plays the role of stabilizing the flow, and the flotation machine performs slurry flotation operation.

[0035] When slurry agitation is required, the threaded disc 11 is rotated in the opposite direction, causing the slide bar 12 to move upward until the conical plug 13 no longer obstructs the flow stabilizer 3. At this point, the flow stabilizer 3 will be pushed against the inner wall of the flotation cell or tank 1 by the slurry agitation force along the slurry flow direction. The flow stabilizer 3 loses its flow stabilization function and no longer obstructs the agitation of the slurry flow, and the flotation machine will then perform slurry agitation.

[0036] Because this application allows for free switching between flotation and agitation operations, it can easily achieve open-circuit agitation and flotation in a single cell or drum. The operation is simple and reliable. In particular, for large-scale flotation cells or drums 1, when they are deep and the slurry pressure is high, the foam slurry in the flotation cell or drum 1 can be dispersed to every corner of the flotation cell or drum 1 through strong agitation. This avoids the problem of poor agitation in traditional flotation cells or drums, which leads to the sedimentation of a large number of mineral particles at the bottom and corners, ultimately resulting in the flotation effect not meeting the ideal and required standards.

[0037] Although embodiments of the present invention have been described in the specification, these embodiments are merely illustrative and should not be construed as limiting the scope of protection of the present invention. Various omissions, substitutions, and modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency integrated aeration and stirring flotation machine, characterized in that: The system includes a flotation cell or tank, a main shaft, stirring blades, a cover plate, a flow stabilizer, a slide bar, a threaded disc, an air supply pipe, and a motor. The main shaft is vertically positioned at the center of the flotation cell or tank. The top end of the main shaft is connected to the motor, and the bottom end of the main shaft passes through the cover plate and connects to the stirring blades. The flow stabilizer is connected to the inner wall of the flotation cell or tank via a movable bolt and can rotate around the bolt. A slide bar is positioned above the flow stabilizer, with its top connected to the threaded disc and its bottom having a conical shape. The conical plug abuts or releases the flow stabilizing plate by moving the slide rod up and down. When the conical plug moves downward to abut the flow stabilizing plate, the flow stabilizing plate is fixed in the downstream position, putting the integrated machine in flotation mode. When the conical plug moves upward to release the flow stabilizing plate, the flow stabilizing plate can be pushed by the slurry against the inner wall of the flotation tank or barrel, putting the integrated machine in stirring mode. The bottom of the air inlet pipe is connected to the cover plate, and the center of the cover plate has a slurry inlet for drawing in slurry for gas-liquid mixing.

2. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: The stirring blades can be extended beyond or reach the outer edge of the cover plate.

3. The high-efficiency aerated stirring flotation integrated machine according to claim 1 or 2, characterized in that: The stirring blade has at least two blades.

4. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: The bottom of the cover plate is fixedly connected with at least two blades.

5. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: An annular foam collection trough is provided along the entire outer edge of the flotation cell or barrel opening.

6. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: The top of the spindle is connected to the motor via a belt and pulley, and the motor is controlled by a frequency converter.

7. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: The flow stabilizer has four or more components.

8. The high-efficiency aerated stirring flotation integrated machine according to claim 1, characterized in that: The slide bar can move up and down via the threaded disc to control the movement of the flow stabilizer.

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