Aluminum material flotation equipment with good flotation effect

Abstract

The aluminum material flotation equipment with the good flotation effect comprises a flotation cylinder and further comprises a feeding groove, a feeding port is formed in the rear end of the flotation cylinder, the front portion of the feeding groove extends into the flotation cylinder, received aluminum materials and flotation liquid are guided forwards into a flotation pool of the flotation cylinder for flotation, the front portion of the feeding groove is an offset portion, and the offset portion is arranged in the feeding groove. The right end liquid flow path of the feed chute is shorter than the left end / the left end liquid flow path of the feed chute is shorter than the right end. According to the aluminum material flotation equipment, the front portion of the feeding groove is the offset portion, for example, the left end is front, and the right end is rear, the liquid flowing path of the right end of the feeding groove is shorter than that of the left end, friction resistance borne by flotation liquid when the flotation liquid flows in the liquid flowing path of the right end is smaller than that of the left end, and the flotation liquid can be gathered to the right end of the front portion of the feeding groove; when an aluminum material is scoured to the surface of the flotation tank from the right end of the front part of the feeding groove by the flotation liquid, the impact force of the flotation liquid on the iron material is stronger, and the iron material mixed in the aluminum material can be directly scoured to a deeper position below the tank surface, so that the iron material is more easily settled to the bottom of a barrel, and the flotation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flotation equipment, and particularly to an aluminum material flotation equipment with good flotation effect. Background Art

[0002] Aluminum product manufacturers' purchased aluminum materials from the outside are prone to being mixed with impurities such as iron materials, and an aluminum material flotation equipment is needed to float out relatively pure aluminum materials therefrom. The aluminum material flotation equipment includes a hopper, a feed trough, and a flotation cylinder, and also includes a water pump and a flotation liquid storage tank. The rear part of the feed trough is located at the material dropping opening of the hopper, and 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 from the rear to the front through the feed port. The flotation liquid storage tank contains flotation liquid, and a flotation pool formed by the flotation liquid is provided in the flotation cylinder. The conveying mechanism feeds the aluminum materials to be floated into the hopper, the water pump pumps the flotation liquid in the flotation liquid storage pool into the hopper, and the aluminum materials and the flotation liquid fall together from the material dropping opening of the hopper. The feed trough receives the aluminum materials and the flotation liquid dropping from the material dropping opening of the hopper. Under the scouring action of the flotation liquid, the aluminum materials enter the flotation cylinder through the feed port under the guidance of the feed trough, and then fall into the flotation pool in the flotation cylinder from the front part of the feed trough. The aluminum materials float on the surface of the flotation pool due to their light weight, and the iron materials mixed in the aluminum materials sink to the bottom of the cylinder due to their heavy weight. The front end of the flotation cylinder is provided with a discharge port. As the aluminum materials and the flotation liquid continuously fall into the flotation pool, the surface of the flotation pool gradually rises to be higher than the discharge port. In this state, the flotation liquid on the surface of the flotation pool drives the aluminum materials floating on the surface to flow out forward from the discharge port to the outside of the flotation cylinder, thus realizing the flotation of the aluminum materials.

[0003] When the flotation liquid in the flotation pool flows forward, the iron materials that have not completely settled to the bottom of the cylinder will also move along with it. If these iron materials are carried to the front end of the flotation cylinder, they may be discharged to the outside of the cylinder together with the flotation liquid, resulting in the floated aluminum materials still containing more iron materials and affecting the flotation effect. To achieve good flotation effect, the flotation cylinder is usually designed to be longer, so that these iron materials have enough time to settle to the bottom of the cylinder before being carried to the front end. However, in the case of limited space, it may not be possible to design a longer flotation cylinder, and thus it may not be possible to obtain 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 the iron materials more easily settle to the bottom of the cylinder, thereby improving the flotation effect.

[0005] The flow path of the flotation liquid on the feed trough is the liquid flow path. The inventor's research found that in conventional aluminum material flotation equipment, the left and right ends of the front part of the feed trough are in the same position in the front-rear direction, and the flotation liquid is evenly distributed on the feed trough. When the flotation liquid washes the aluminum material from the feed trough onto the surface of the flotation pool, the impact force on the aluminum material is weak, and it is difficult to directly wash the iron material mixed in the aluminum material to a deeper position below the pool surface. The iron material needs to slowly settle to the bottom of the cylinder from a shallower position. The inventor thought that if the left and right ends of the front end of the feed trough were changed to be in different positions in the front-rear direction, for example, the left end is in front and the right end is behind, or the right end is in front and the left end is behind, the lengths of the liquid flow paths at the left and right ends of the feed trough could be made different. According to Bernoulli's principle, the 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 washes the aluminum material from this end of the feed trough onto the surface of the flotation liquid, the impact force of the flotation liquid on the aluminum material is stronger, and it can directly wash 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 and 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-rear direction, and also includes a feed trough for receiving the aluminum material to be floated and the flotation liquid. A flotation pool formed by the flotation liquid is provided in the flotation cylinder. An inlet is opened at the rear end of the flotation cylinder. The front part of the feed trough extends into the flotation cylinder from the rear through the inlet, guiding the received aluminum material and flotation liquid forward to the flotation pool in the flotation cylinder for flotation. An outlet is opened at the front end of the flotation cylinder for the flotation liquid on the surface of the flotation pool to drive the aluminum material floating on the pool surface forward and discharge it outside the flotation cylinder. The front part of the feed trough is an offset part with the left end in front and the right end behind / the right end in front and the left end behind, 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 face of the feed trough is an inclined surface with the left end in front and the right end behind / the right end in front and the left end behind.

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

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

[0010] Furthermore, it includes a flotation liquid storage tank and a water pump. The liquid inlet end of the water pump is connected with an inlet pipe, the inlet pipe extends into the flotation liquid storage tank, the liquid outlet end is connected with an outlet pipe, and the outlet pipe is connected with the nozzle. The water pump pumps the flotation liquid in the flotation liquid storage tank to the nozzle for spraying. This aluminum material flotation equipment includes a controller, and the controller is controllably connected to the water pump to control the water pump to be periodically turned on and off, thereby generating a pulsed flotation liquid flow in the feed trough.

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

[0012] Furthermore, it includes a mounting frame, and the middle part of the feeding trough is hinged on the mounting frame; an angle adjusting mechanism for periodically changing the inclination angle of the feeding trough is provided.

[0013] For the aluminum material flotation equipment of the present invention, the front part of the feeding trough is an offset part with the left end being in front and the right end being behind / the right end being in front and the left end being behind. Taking the former as an example: in this state, the liquid flow path at the right end of the feeding trough is shorter than that at the left end, and the frictional resistance suffered by the flotation liquid when flowing through the liquid flow path at the right end is less 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 converges to the right end of the front part of the feeding trough; when the flotation liquid washes the aluminum material from the right end of the front part of the feeding trough to the surface of the flotation pool, the impact force of the flotation liquid on the iron material is stronger, and the iron material mixed in the aluminum material can be directly washed to a deeper position below the pool surface, making it easier for the iron material to settle to the bottom of the cylinder, improving the flotation effect. Therefore, the aluminum material flotation equipment of the present invention has a good flotation effect. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the aluminum material flotation equipment of the first embodiment.

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

[0016] Figure 3 is a schematic diagram of the feeding trough of the first embodiment.

[0017] Figure 4 is a top view of the feeding trough of the first embodiment.

[0018] Figure 5 is a schematic diagram of the aluminum material flotation equipment of the third embodiment. The front part of the mounting frame, the flotation cylinder, the conveyor belt and the driving motor are not drawn in the figure.

[0019] Figure 6 is a schematic diagram of the rear part of the mounting frame, the hopper, the feeding trough and the angle adjusting mechanism of the fifth embodiment. The electric push rod of the angle adjusting structure is in the rising state in the figure.

[0020] Figure 7 is a schematic diagram of the rear part of the mounting frame, the hopper, the feeding trough and the angle adjusting mechanism of the fifth embodiment. The electric push rod of the angle adjusting mechanism is in the descending state in the figure. Detailed Embodiments

[0021] The following further details the present invention in conjunction with specific embodiments.

[0022] First Embodiment:

[0023] The aluminum material flotation equipment with good flotation effect is shown in Figure 1 and Figure 2, including a mounting frame 1. A flotation cylinder 2 in the front-back direction is installed at the front part 11 of the mounting frame 1. A feed inlet 22 is opened at the rear end of the flotation cylinder 2, and a discharge outlet 21 is opened at the front end. The bottom edge of the feed inlet 22 is higher than that of the discharge outlet 21, and the bottom edge of the discharge outlet 21 is higher than the cylinder bottom 23. A flotation pool 20 formed by a flotation liquid is contained in the flotation cylinder 2. A hopper 3 is provided behind the flotation cylinder 2, and a front-back "concave"-shaped feed chute 4 (as Figure 3 shown) is provided below the hopper 3. A hopper support frame 121 and a feed chute support plate 122 are provided at the rear part 12 of the mounting frame 1. The hopper 3 is fixedly installed on the hopper support frame 121, and the feed chute 4 is fixedly installed on the feed chute support plate 122. The feed chute 4 is an inclined chute with the front end lower and the rear end higher. Its rear part 42 faces upward and is aligned with the discharge opening 31 of the hopper 3, and its front part 41 extends into the flotation cylinder 2 from the rear to the front through the feed inlet 22. A conveyor belt 51 and a drive motor 52 for drivingly connecting the conveyor belt 51 are provided on the right side of the hopper 3. 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 stores the flotation liquid. The liquid inlet end of the first water pump 62 is connected with a first feed pipe 63, and the first feed pipe 63 extends into the flotation liquid storage tank 61. The liquid outlet end of the first water pump 62 is connected with a first discharge pipe 64, and the first discharge pipe 64 extends above the hopper 3. The above is the prior art.

[0024] See Figure 1 and Figure 2 , when the staff is performing flotation, first start the drive motor 52 and the first water pump 62, and then divide the aluminum materials to be floated into different batches and pour them onto the conveyor belt 51 successively. The drive motor 52 drives the conveyor belt 51 to send the aluminum materials to be floated into the hopper 3 to the left. The first water pump 62 pumps the flotation liquid in the flotation liquid storage tank 61 into the hopper 3. The aluminum materials and the flotation liquid fall together from the discharge opening 31 of the hopper 3. The rear part 42 of the feed chute 4 receives the aluminum materials and the flotation liquid falling from the discharge opening 31 of the hopper 3. Under the scouring action of the flotation liquid, the aluminum materials move forward along the feed chute 4, and are guided by the feed chute 4 to enter the flotation cylinder 2 through the feed inlet 22, and then fall from the front part 41 of the feed chute 4 into the flotation pool 20 in the flotation cylinder 2 for flotation. Among them: the aluminum materials float on the pool surface due to their lighter mass, and the iron materials mixed in the aluminum materials sink to the cylinder bottom 23 due to their heavier mass. As the aluminum materials and the flotation liquid continuously fall into the flotation pool 20, the pool surface of the flotation pool 20 gradually rises to be higher than the discharge outlet 21. In this state, the flotation liquid on the pool surface of the flotation pool 20 drives the aluminum materials floating on the pool surface to be discharged forward from the discharge outlet 21 to the outside of the flotation cylinder 2, thus realizing the flotation of the aluminum materials.

[0025] See Figure 3 and Figure 4, the flow path of the flotation liquid on the feed tank 4 is the liquid flow path. The front part 41 of the feed tank 4 is an offset part with the left end 411 being forward and the right end 412 being backward. Its front end face 410 is an inclined surface with the left end being forward and the right end being backward. The angle R1 between this front end face 410 and the right side wall of the feed tank 4 is 30 - 50°. In this state: the liquid flow path L1 at the right end of the feed tank 4 is shorter than the liquid flow path L2 at the left end. The frictional resistance suffered by the flotation liquid when flowing along the right - hand liquid flow path L1 is smaller. According to Bernoulli's principle, the right - hand liquid flow path L1 will attract more flow, which is equivalent to converging the flotation liquid to the right end 412 of the front part 41 of the feed tank 4. See Figure 2 and Figure 4 , when the flotation liquid washes the aluminum material from the right end 412 of the front part 41 of the feed tank 4 to the surface of the flotation tank 20, the impact force of the flotation liquid on the iron material mixed in the aluminum material is stronger, and it can directly wash the iron material mixed in the aluminum material to a deeper position below the tank surface, so that the iron material is more likely to settle to the bottom 23 of the cylinder, improving the flotation effect. Although some aluminum materials may also be washed to a deeper position below the tank surface during this process, the aluminum materials will still naturally float after a period of time and will not have an adverse impact on the flotation effect.

[0026] Second embodiment:

[0027] The second embodiment is substantially the same as the first embodiment, the difference being: Refer to Figure 3 and Figure 4 , the front part 41 of the feed tank 4 in the second embodiment is an offset part with the left end 411 being backward and the right end 412 being forward. The liquid flow path L2 at the left end is shorter than the liquid flow path L1 at the right end. The flotation liquid will converge to the left end 411 of the front part 41 of the feed tank 4, which will not be elaborated here.

[0028] Third embodiment:

[0029] The third embodiment is substantially the same as the first embodiment, the difference being: The third embodiment is shown in Figure 5, a nozzle 7 is provided on the left tank wall of the feed tank 4, and a second water pump 65 and a controller (not shown in the figure) are also provided. The nozzle 7 faces the right end 412 of the front part 41 of the feed tank 4. The liquid inlet end of the second water pump 65 is connected with a second liquid inlet pipe 66, the second liquid inlet pipe 66 extends into the flotation liquid accommodation tank 61, the liquid outlet end of the second water pump 65 is connected with a second liquid outlet pipe 67, the second liquid outlet pipe 67 is connected with the nozzle 7, and the controller is controlled to be connected with the second water pump 65. The controller controls the second water pump 65 to be periodically turned on and off (set in this embodiment to be turned on for 5 seconds - turned off for 2 seconds - turned on for 5 seconds, and so on), that is, controls the second water pump 65 to periodically pump the flotation liquid in the flotation liquid accommodation tank 61 to the nozzle 7, and the nozzle 7 sprays the flotation liquid towards the right end 412 of the front part 41 of the feed tank 4. This periodic liquid pumping method can generate a pulsed flotation liquid flow on the feed tank 4. When the pulsed flotation liquid flow falls onto the surface of the flotation pool 20, more eddy currents can be generated. The eddy currents can exert forces on the aluminum materials in the flotation pool 20 from all directions, thereby dispersing the aluminum materials and the iron materials mixed therein, making it easier for the iron materials to settle to the bottom 23 of the cylinder.

[0030] Fourth Embodiment:

[0031] The fourth embodiment is substantially the same as the third embodiment, the difference being: Refer to Figure 3 、 Figure 4 and Figure 5 , the front part 41 of the feed tank 4 in the fourth embodiment is an offset part with the left end 411 being behind and the left end 412 being in front. The liquid flow path L2 at the left end is shorter than the liquid flow path L1 at the right end. The flotation liquid will converge to the left end 411 of the front part 41 of the feed tank 4. The nozzle 7 in the fourth embodiment is provided on the right tank wall of the feed tank 4, and sprays the flotation liquid towards the left end 411 of the front part 41 of the feed tank 4, which will not be elaborated.

[0032] Fifth Embodiment:

[0033] The fifth embodiment is substantially the same as the first embodiment, the difference being: The fifth embodiment is shown in Figure 6 , the feed tank support plate 122 is cancelled at the rear part 12 of the mounting frame 1, and a feed tank hinge plate 123 is provided instead. The middle part 43 of the feed tank 4 is hinged to the feed tank hinge plate 123 at the rear part 12 of the mounting frame 1. An angle adjustment mechanism 8 is provided at the rear part 42 of the feed tank 4 of this aluminum material flotation device, and a controller (not shown in the figure) is also provided. 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 to its top. The connecting rod 82 is hinged to the rear part 42 of the feed tank 4, and the controller is controlled to be connected with the electric push rod 81. The controller controls the electric push rod 81 to be periodically raised and lowered. This embodiment is set as follows: First, it descends 30 cm from the Figure 6 shown raised state to become the Figure 7 shown lowered state (in this state, the feed tank 41 is still lower at the front and higher at the rear), and then fromFigure 7 The descending state shown rises by 30 cm and becomes Figure 6 the rising state shown, and so on, thereby continuously changing the inclination angle of the feed chute 4. Refer to Figure 2 , as the inclination angle of the feed chute 4 continuously changes, the flow direction and speed of the flotation liquid flowing into the flotation cell 20 also change accordingly, so that more eddy currents can be generated in the flotation cell 20. The eddy currents can exert forces from all directions on the aluminum materials in the flotation cell 20 to break up the aluminum materials and the iron materials mixed therein, making it easier for the iron materials to settle to the bottom 23 of the cylinder.

[0034] As described above, it is only the implementation mode of the present invention, and the scope of patent protection is not limited thereby. Those skilled in the art make non-substantive changes or substitutions on the basis of the present invention, and still fall within the scope of patent protection.

Claims

1. Aluminum flotation equipment with good flotation effect, including a flotation cylinder in the front and rear directions, and also including a feed trough for receiving the aluminum material to be floated and the flotation liquid, a flotation pool formed by the flotation liquid is arranged in the flotation cylinder, a feed port is opened at the rear end of the flotation cylinder, and the front part of the feed trough extends into the flotation cylinder through the feed port from the back to the front, and the aluminum material and the flotation liquid received are guided forward to the flotation pool of the flotation cylinder for flotation, and a discharge port is opened at the front end of the flotation cylinder 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, characterized in that: 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 the left end / the liquid flow path at the left end is shorter than the right end.

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 being closer to the front and the right end being closer to the back / the right end being closer to the front and the left end being closer to the back.

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

4. The aluminum flotation equipment according to claim 1, characterized in that: A nozzle for spraying flotation liquid toward the front right end / left end of the feed trough is arranged on the left trough wall / right trough wall of the feed trough.

5. The aluminum flotation equipment according to claim 4, characterized in that: It 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.

6. 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.

7. The aluminum flotation equipment according to claim 6, 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.

Images