Aluminum flotation equipment with good flotation effect

Abstract

The aluminum material flotation equipment with good flotation effect of the present invention includes a flotation cylinder and a feed trough. The rear end of the flotation cylinder is provided with a feed port. The front part of the feed trough extends into the flotation cylinder to guide the aluminum material and flotation liquid received to the flotation pool of the flotation cylinder for flotation. The front part of the feed trough is an offset part, so that the liquid flow path of the right end of the feed trough is shorter than that of the left end, and the liquid flow path of the left end is shorter than that of the right end. The aluminum flotation equipment of the present invention has a feed trough with an offset portion at the front. For example, the left end is offset to the front and the right end is offset to the rear. The liquid flow path at the right end of the feed trough is shorter than that at the left end. The friction resistance encountered by the flotation liquid when flowing in the liquid flow path at the right end is smaller than that at the left end. The flotation liquid will converge to the right end of the front of the feed trough. When the flotation liquid flushes the aluminum material from the right end of the front of the feed trough to the surface of the flotation tank, the impact force of the flotation liquid on the iron material is relatively strong. The iron material mixed in the aluminum material can be directly flushed to a deeper position below the tank surface, making it easier for the iron material to settle to the bottom of the tank, thereby improving the flotation effect.

Description

Technical Field

[0001] The invention relates to the technical field of flotation equipment, in particular to aluminum material flotation equipment with good flotation effect. Background Art

[0002] Aluminum manufacturers often purchase aluminum materials from external suppliers, which often contain impurities such as iron. Therefore, aluminum flotation equipment is required to extract purer aluminum from these materials. The equipment consists of a hopper, a feed trough, and a flotation drum. It also includes a water pump and a flotation liquid tank. The rear portion of the feed trough is located at the hopper's discharge port. The rear end of the flotation drum has a feed port, and the front portion of the feed trough extends from the rear to the front of the drum through the feed port. The flotation liquid tank contains flotation liquid, and the flotation drum contains a flotation cell formed by the flotation liquid. A conveyor mechanism delivers the aluminum material to be floated into the hopper, and a water pump pumps the flotation liquid from the flotation liquid cell into the hopper. The aluminum and flotation liquid fall through the hopper's discharge port together, and the feed trough receives the aluminum and flotation liquid that fall from the hopper's discharge port. Under the action of the flotation fluid, the aluminum material is guided through the feed trough and into the flotation cylinder through the feed port. It then falls from the front of the feed trough into the flotation tank within the cylinder. Due to its light weight, the aluminum material floats on the surface of the flotation tank, while the iron material mixed with it, due to its heavier weight, sinks to the bottom of the cylinder. The cylinder has a discharge port at the front end. As the aluminum material and flotation fluid continue to fall into the flotation tank, the cell surface gradually rises above the discharge port. At this point, the flotation fluid on the surface of the flotation tank drives the floating aluminum material forward through the discharge port and out of the cylinder, thus achieving the flotation of the aluminum material.

[0003] As the flotation fluid in the flotation tank flows forward, iron particles that haven't yet fully settled to the bottom of the cylinder also move with it. If these iron particles are carried to the front of the cylinder, they may be discharged from the cylinder along with the flotation fluid, resulting in the floated aluminum still containing a large amount of iron particles, affecting the flotation effect. To achieve good flotation results, the flotation cylinder is usually designed to be longer, allowing the iron particles to have sufficient time to settle to the bottom before being carried to the front. However, if space is limited and a longer flotation cylinder cannot be designed, it may not achieve good flotation results. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an aluminum material flotation equipment with good flotation effect, which can make iron materials settle to the bottom of the cylinder more easily and thus improve the flotation effect.

[0005] The flow path of the flotation liquid on the feed trough is the liquid flow path. The inventors discovered that in conventional aluminum flotation equipment, the left and right ends of the front of the feed trough are in the same position in the front-to-back direction, and the flotation liquid is evenly distributed on the feed trough. When the aluminum material is flushed from the feed trough to the surface of the flotation tank, the impact force on the aluminum material is weak, making it difficult to directly flush the iron material mixed in the aluminum material to a deeper position below the tank surface. The iron material must slowly settle from a shallower position to the bottom of the tank. The inventors realized that if the left and right ends of the front end of the feed trough were changed to different positions in the front-to-back direction, for example, the left end was slightly forward and the right end was slightly backward, or the right end was slightly forward and the left end was slightly backward, the liquid flow path lengths at the left and right ends of the feed trough could be made different. According to Bernoulli's principle, a shorter liquid flow path will attract more flow, which is equivalent to converging the flotation liquid to one end of the feed trough. When the flotation liquid flushes the aluminum material from this end of the feed trough to the surface of the flotation liquid, the flotation liquid has a strong impact on the aluminum material, which can directly flush the iron material mixed in the aluminum material to a deeper position below the liquid surface, making it easier for the iron material to settle to the bottom of the cylinder, thereby improving the flotation effect.

[0006] The aluminum material flotation equipment with good flotation effect of the present invention includes a flotation cylinder in the front and rear directions, and also includes a feed trough for receiving the aluminum material to be floated and the flotation liquid. The flotation cylinder is provided with a flotation pool formed by the flotation liquid. The rear end of the flotation cylinder is provided with a feed port. The front part of the feed trough extends into the flotation cylinder through the feed port from the rear to the front, and guides the received aluminum material and flotation liquid forward to the flotation pool of the flotation cylinder for flotation. The front end of the flotation cylinder is provided with a discharge port for the flotation liquid on the surface of the flotation pool to drive the aluminum material floating on the pool surface to be discharged forward to the outside of the flotation cylinder. The front part of the feed trough is an offset part with the left end biased forward and the right end biased backward / the right end biased forward and the left end biased backward, so that the liquid flow path at the right end of the feed trough is shorter than that at the left end / the liquid flow path at the left end is shorter than that at the right end.

[0007] Furthermore, the front end surface of the feed chute is an inclined surface with the left end closer to the front and the right end closer to the back / the right end closer to the front and the left end closer to the back.

[0008] Furthermore, the feed trough is a concave-shaped trough.

[0009] Furthermore, a nozzle for spraying flotation liquid toward the front right end / left end of the feed trough is provided on the left trough wall / right trough wall.

[0010] Furthermore, the device includes a flotation liquid storage tank and a water pump. The liquid inlet end of the water pump is connected to a liquid inlet pipe, which extends into the flotation liquid storage tank. The liquid outlet end is connected to a liquid outlet pipe, which is connected to a nozzle. The water pump pumps the flotation liquid in the flotation liquid storage tank to the nozzle for spraying. The aluminum material flotation equipment includes a controller, which controls the water pump to control the water pump to open and close regularly, thereby generating a pulsed flotation liquid flow in the feed tank.

[0011] Furthermore, the feed trough is an inclined trough with a lower front and a higher back.

[0012] Furthermore, it includes a mounting frame, and the middle part of the feed chute is hinged on the mounting frame; an angle adjustment mechanism is provided for regularly changing the inclination angle of the feed chute.

[0013] The aluminum flotation equipment of the present invention has a front portion of a feed trough that is an offset portion with the left end biased forward and the right end biased backward, or the right end biased forward and the left end biased backward. Taking the former as an example: in this state, the liquid flow path at the right end of the feed trough is shorter than the left end, and the friction resistance encountered by the flotation liquid when flowing in the liquid flow path at the right end is smaller than that at the left end; according to Bernoulli's principle, the liquid flow path at the right end will attract more flow, so that the flotation liquid is gathered to the right end of the front portion of the feed trough; when the flotation liquid flushes the aluminum material from the right end of the front portion of the feed trough to the surface of the flotation tank, the impact force of the flotation liquid on the iron material is relatively strong, and the iron material mixed in the aluminum material can be directly flushed to a deeper position below the tank surface, so that the iron material is more easily settled to the bottom of the tank, thereby improving the flotation effect. Therefore, the aluminum flotation equipment of the present invention has a good flotation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic diagram of an aluminum material flotation device according to a first embodiment.

[0015] Figure 2 It is a cross-sectional view of the aluminum material flotation equipment of the first embodiment.

[0016] Figure 3 Schematic diagram of the feed chute of the first embodiment.

[0017] Figure 4 1 is a top view of the feed chute of the first embodiment.

[0018] Figure 5 1 is a schematic diagram of the aluminum flotation equipment of the third embodiment, in which the front portion of the mounting frame, the flotation cylinder, the conveyor belt and the drive motor are not shown.

[0019] Figure 6 Schematic diagram of the rear portion of the mounting frame, the hopper, the feed chute and the angle adjustment mechanism of the fifth embodiment, in which the electric push rod of the angle adjustment structure is in an ascending state.

[0020] Figure 7 Schematic diagram of the rear portion of the mounting frame, the hopper, the feed chute and the angle adjustment mechanism of the fifth embodiment, wherein the electric push rod of the angle adjustment mechanism is in a lowered state. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with specific embodiments.

[0022] First embodiment:

[0023] Aluminum flotation equipment with good flotation effect Figure 1 and Figure 2, including a mounting frame 1, the front portion 11 of the mounting frame 1 is mounted with a flotation cylinder 2 in the front-to-back direction, the rear end of the flotation cylinder 2 is provided with a feed port 22, the front end is provided with a discharge port 21, the bottom edge of the feed port 22 is higher than the discharge port 21, and the bottom edge of the discharge port 21 is higher than the cylinder bottom 23. The flotation cylinder 2 is filled with a flotation pool 20 formed by the flotation liquid. A hopper 3 is provided at the rear of the flotation cylinder 2, and a "concave"-shaped feed trough 4 (such as Figure 3 As shown, the rear portion 12 of the mounting frame 1 is provided with a hopper support frame 121 and a feed chute support plate 122. The hopper 3 is fixedly mounted on the hopper support frame 121, and the feed chute 4 is fixedly mounted on the feed chute support plate 122. The feed chute 4 is an inclined trough with a lower front and a higher rear. Its rear portion 42 is aligned upward with the feed opening 31 of the hopper 3, and its front portion 41 extends from the rear to the front through the feed opening 22 and into the flotation cylinder 2. To the right of the hopper 3 is a conveyor belt 51 and a drive motor 52 that drives the conveyor belt 51. The left end of the conveyor belt 51 extends above the hopper 3. A flotation liquid storage tank 61 and a first water pump 62 are provided behind the hopper 3. The flotation liquid storage tank 61 contains flotation liquid. The liquid inlet of the first water pump 62 is connected to a first feed pipe 63, which extends into the flotation liquid storage tank 61. The liquid outlet of the first water pump 62 is connected to a first discharge pipe 64, which extends above the hopper 3. The above is the prior art.

[0024] See Figure 1 and Figure 2 During flotation, the operator first starts the drive motor 52 and the first water pump 62. The aluminum material to be floated is then divided into batches and poured onto the conveyor belt 51. The drive motor 52 drives the conveyor belt 51 to move the aluminum material to the left into the hopper 3. The first water pump 62 pumps the flotation liquid from the flotation liquid tank 61 into the hopper 3. The aluminum material and the flotation liquid fall together from the discharge opening 31 of the hopper 3. The rear portion 42 of the feed chute 4 receives the aluminum material and flotation liquid falling from the discharge opening 31 of the hopper 3. Under the action of the flotation liquid, the aluminum material moves forward along the feed chute 4, is guided by the feed chute 4, enters the flotation drum 2 through the feed opening 22, and then falls from the front portion 41 of the feed chute 4 into the flotation tank 20 within the flotation drum 2 for flotation. The aluminum material, being lighter in weight, floats on the tank surface, while the iron material mixed in the aluminum material, being heavier, sinks to the bottom 23 of the tank. As the aluminum material and the flotation liquid continue to fall into the flotation tank 20, the surface of the flotation tank 20 gradually rises to be higher than the discharge port 21. In this state, the flotation liquid on the surface of the flotation tank 20 drives the aluminum material floating on the surface to be discharged forward from the discharge port 21 to the outside of the flotation cylinder 2, thereby achieving the flotation of the aluminum material.

[0025] See Figure 3 and Figure 4The flow path of the flotation liquid on the feed trough 4 is a liquid flow path. The front portion 41 of the feed trough 4 is an offset portion with the left end 411 biased forward and the right end 412 biased backward. The front end face 410 is an inclined surface with the left end forward and the right end backward. The angle R1 between the front end face 410 and the right side wall of the feed trough 4 is 30 to 50 degrees. In this state: the liquid flow path L1 at the right end of the feed trough 4 is shorter than the liquid flow path L2 at the left end, and the friction resistance encountered by the flotation liquid when flowing along the liquid flow path L1 at the right end is smaller. According to Bernoulli's principle, the liquid flow path L1 at the right end will attract more flow, which is equivalent to converging the flotation liquid to the right end 412 of the front portion 41 of the feed trough 4. Figure 2 and Figure 4 When the flotation liquid washes the aluminum material from the right end 412 of the front portion 41 of the feed trough 4 onto the surface of the flotation tank 20, the flotation liquid exerts a strong impact on the iron material mixed with the aluminum material, directly flushing the iron material mixed with the aluminum material to a deeper position below the tank surface, thereby allowing the iron material to settle more easily to the bottom 23 of the tank, thereby improving the flotation effect. Although some aluminum material may be washed to a deeper position below the tank surface during this process, the aluminum material will naturally float up after a period of time, and will not adversely affect the flotation effect.

[0026] Second embodiment:

[0027] The second embodiment is substantially the same as the first embodiment, except that: Figure 3 and Figure 4 The front portion 41 of the feed trough 4 of the second embodiment is an offset portion with the left end 411 offset to the rear and the left end 412 offset to the front. The left end liquid flow path L2 is shorter than the right end liquid flow path L1. The flotation liquid will converge to the left end 411 of the front portion 41 of the feed trough 4, which will not be described in detail.

[0028] Third embodiment:

[0029] The third embodiment is substantially the same as the first embodiment, except that: Figure 5A nozzle 7 is provided on the left wall of the feed trough 4, along with a second water pump 65 and a controller (not shown). The nozzle 7 faces the right end 412 of the front portion 41 of the feed trough 4. The inlet of the second water pump 65 is connected to a second inlet pipe 66, which extends into the flotation liquid storage tank 61. The outlet of the second water pump 65 is connected to a second outlet pipe 67, which is connected to the nozzle 7. The controller controls the connection to the second water pump 65. The controller controls the second water pump 65 to periodically turn on and off (in this embodiment, the cycle is set to be on for 5 seconds, off for 2 seconds, on for 5 seconds, and so on). In other words, the second water pump 65 periodically pumps the flotation liquid from the flotation liquid storage tank 61 to the nozzle 7, which sprays the flotation liquid toward the right end 412 of the front portion 41 of the feed trough 4. This periodic pumping method can generate a pulsed flow of flotation liquid in the feed trough 4. When the pulsed flotation liquid falls on the surface of the flotation tank 20, it can generate more eddies. The eddies can exert forces from all directions on the aluminum material in the flotation tank 20, thereby breaking up the aluminum material and the iron material mixed therein, making it easier for the iron material to settle to the bottom 23 of the tank.

[0030] Fourth embodiment:

[0031] The fourth embodiment is substantially the same as the third embodiment, except that: Figure 3 、 Figure 4 and Figure 5 The front portion 41 of the feed trough 4 of the fourth embodiment is an offset portion with the left end 411 offset to the rear and the left end 412 offset to the front. The left end liquid flow path L2 is shorter than the right end liquid flow path L1. The flotation liquid will converge to the left end 411 of the front portion 41 of the feed trough 4. The nozzle 7 of the fourth embodiment is provided on the right trough wall of the feed trough 4 to spray the flotation liquid toward the left end 411 of the front portion 41 of the feed trough 4. No further description will be given.

[0032] Fifth embodiment:

[0033] The fifth embodiment is substantially the same as the first embodiment, except that: Figure 6 The feed trough support plate 122 is cancelled at the rear part 12 of the mounting frame 1, and is replaced with a feed trough hinge plate 123. The middle part 43 of the feed trough 4 is hinged to the feed trough hinge plate 123 at the rear part 12 of the mounting frame 1. The aluminum flotation equipment is provided with an angle adjustment mechanism 8 at the rear part 42 of the feed trough 4, and is also provided with a controller (not shown in the figure). The angle adjustment mechanism 8 includes a vertical electric push rod 81. The electric push rod 81 is fixed to the rear part 12 of the mounting frame 1, and a connecting rod 82 is hinged at the top. The connecting rod 82 is hinged to the rear part 42 of the feed trough 4. The controller controls the connection of the electric push rod 81. The controller controls the electric push rod 81 to rise and fall regularly. The setting of this embodiment is as follows: first, Figure 6 The raised state shown is lowered by 30cm and becomes Figure 7 The lowered state shown in FIG. 4 (in this state, the feed trough 41 is still low in the front and high in the back), and then Figure 7 The descending state shown rises 30cm and becomes Figure 6 The raised state shown in FIG. 4 is repeated in this way, thereby continuously changing the tilt angle of the feed chute 4. Figure 2 As the inclination angle of the feed trough 4 changes, the flow direction and velocity of the flotation liquid flowing into the flotation cell 20 also change accordingly, thereby generating a large number of eddy currents in the flotation cell 20. The eddy currents can exert forces from all directions on the aluminum material in the flotation cell 20, thereby breaking up the aluminum material and the iron material mixed therein, allowing the iron material to settle more easily to the bottom 23 of the cylinder.

[0034] The above is only an embodiment of the present invention and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the present invention and still fall within the scope of patent protection.

Claims

1. Aluminum flotation equipment with good flotation effect includes a flotation cylinder in the front and rear directions, and a feed trough for receiving the aluminum material to be floated and the flotation liquid. The flotation cylinder is provided with a flotation pool formed by the flotation liquid. The rear end of the flotation cylinder is provided with a feed port. The front part of the feed trough extends from the rear to the front through the feed port into the flotation cylinder, and guides the received aluminum material and flotation liquid forward to the flotation pool of the flotation cylinder for flotation. The front end of the flotation cylinder is provided with a discharge port for the flotation liquid on the surface of the flotation pool to drive the aluminum material floating on the pool surface to be discharged out of the flotation cylinder. The characteristics are: The front portion of the feed trough is an offset portion with the left end biased forward and the right end biased backward / the right end biased forward and the left end biased backward, thereby making the liquid flow path at the right end of the feed trough shorter than the left end / the liquid flow path at the left end shorter than the right end; a nozzle for spraying flotation liquid toward the front right end / left end of the feed trough is provided on the left trough wall / the right trough wall of the feed trough; the feed trough includes a flotation liquid storage tank and a water pump, the liquid inlet end of the water pump is connected to a liquid inlet pipe, the liquid inlet pipe extends into the flotation liquid storage tank, the liquid outlet end is connected to a liquid outlet pipe, the liquid outlet pipe is connected to the nozzle, and the water pump pumps the flotation liquid in the flotation liquid storage tank to the nozzle for spraying. The aluminum material flotation equipment includes a controller, which controls the water pump to control the water pump to regularly open and close, thereby generating a pulsed flotation liquid flow in the feed trough.

2. The aluminum flotation equipment according to claim 1, characterized in that: The front end surface of the feed chute is an inclined surface with the left end closer to the front and the right end closer to the back / the right end closer to the front and the left end closer to the back.

3. The aluminum flotation equipment according to claim 1, characterized in that: The feed chute is a concave shaped chute.

4. The aluminum flotation equipment according to claim 1, characterized in that: The feed chute is an inclined chute with the front lower and the back higher.

5. The aluminum flotation equipment according to claim 4, characterized in that: The utility model comprises a mounting frame, the middle part of the feed chute is hinged on the mounting frame, and an angle adjustment mechanism for regularly changing the inclination angle of the feed chute is provided.

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