A flotation machine for washing electrolytic aluminum waste

Abstract

The utility model relates to the technical field of flotation machines, and discloses an electrolytic aluminum waste washing flotation machine, including a first flotation box and a second flotation box arranged at the left discharge end of the first flotation box, the first flotation box and the second flotation box are provided with a partition on the top, the partition divides the top of the first flotation box and the second flotation box into two front and rear foam outlet channels, both foam outlet channels are provided with a foam scraping mechanism, and closed plates are provided on both sides of the partition located above the second flotation box, and the left and right sides of the closed plate are respectively provided with a foam outlet and a foam inlet. The setting of the partition of the utility model allows carbon-containing foam to overflow from the foam outlet channels on both sides and be scraped to the second flotation box by the foam scraping mechanism, the foam blocking plate and the anti-overflow mechanism limit the flow direction of the foam, so that it enters the second flotation box for secondary purification, the setting of the closed plate prolongs the waiting time of carbon powder in the second flotation box, and at the same time, multiple second flotation boxes can be provided in sequence to improve the purification effect.

Description

Technical Field

[0001] The utility model relates to the technical field of flotation machines, in particular to a flotation machine for washing electrolytic aluminum waste. Background Art

[0002] During the aluminum electrolysis process, the anode carbon block does not fully participate in the electrochemical reaction, resulting in some carbon blocks being unable to be consumed, and eventually forming carbon slag. Specifically, the anode is usually made of carbon blocks or graphite, which is used to introduce oxides (such as alumina) for electrolysis. However, due to the influence of reaction conditions or anode structure, some carbon blocks may not be completely converted into gas or liquid aluminum, but leave some unconsumed carbon, forming carbon slag. The carbon powder can be extracted by flotation, that is, the different wettability of carbon, electrolyte and water in the carbon slag is utilized, and the carbon powder and electrolyte in the carbon slag are separated by washing and flotation by a flotation machine.

[0003] Announcement No. CN215964156U discloses a carbon powder purification and washing device, which uses staggered scraper plates to make the carbon powder slurry pass through multiple flotation units in sequence to purify the carbon powder multiple times. However, in the process of passing through multiple flotation units, due to the lightness of the foam, the carbon-containing foam does not sink completely into the flotation unit, but floats over the liquid surface, resulting in poor purification effect.

[0004] Therefore, we proposed an electrolytic aluminum waste washing flotation machine to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art in the above-mentioned background technology, the purpose of the utility model is to provide an electrolytic aluminum waste washing flotation machine to solve the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A flotation machine for washing electrolytic aluminum waste comprises a first flotation box and a second flotation box arranged at the left discharge end of the first flotation box, a plurality of second flotation boxes can be arranged in sequence, a stirring unit is arranged in each of the first flotation box and the second flotation box, a partition is arranged on the top of the first flotation box and the second flotation box, the partition divides the top of the first flotation box and the second flotation box into two front and rear froth outlet channels, both froth outlet channels are provided with froth scraping mechanisms, closing plates are arranged on both sides of the partition above the second flotation box, and a froth outlet and a froth inlet are arranged on the left and right sides of the closing plate respectively.

[0010] Furthermore, the two froth outlet channels are provided with an anti-overflow mechanism, which includes a first anti-overflow plate fixed on the front and rear sides of the first flotation box and the second flotation box and a second anti-overflow plate fixed on the front and rear sides of the partition.

[0011] Furthermore, a foam blocking plate is arranged on the left side of the foam inlet.

[0012] Furthermore, the scraping mechanism includes a plurality of rotating rollers fixed between two first anti-overflow plates and a conveyor belt arranged on the plurality of rotating rollers, the conveyor belt is provided with a plurality of scraping assemblies, and the first flotation box is provided with a first driving motor for driving the rotating rollers to rotate.

[0013] Furthermore, the scraper assembly includes two fixed seats fixed on the conveyor belt and a scraper arranged between the two fixed seats, the fixed seat is provided with a plug hole, and plug rods inserted into the plug hole are arranged on both sides of the scraper, and a coil spring is arranged between the plug rod and the plug hole.

[0014] Furthermore, the height of the foam blocking plate is smaller than the interval between the bottom end of the fixing seat and the top wall of the closing plate.

[0015] Preferably, a flow guide mechanism is provided at the froth inlet, and the flow guide mechanism includes a mounting plate arranged on the inner wall of the second flotation box, a flow guide hole is opened on the mounting plate, an auger is rotatably installed in the flow guide hole, and a second drive motor for driving the auger to rotate is provided on the partition.

[0016] Furthermore, a bracket is fixed at the bottom of the mounting plate, and the bracket is rotatably connected to the bottom end of the auger.

[0017] Furthermore, the top end of the auger protrudes from the upper surface of the guide hole.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The setting of the partition allows the carbon-containing foam to overflow from the foam outlet channels on both sides and be scraped to the second flotation box by the foam scraping mechanism. The foam blocking plate and the anti-overflow mechanism limit the flow direction of the foam, so that it enters the second flotation box for secondary purification. The setting of the closing plate can extend the waiting time of carbon powder in the second flotation box. At the same time, multiple second flotation boxes can be set in sequence to improve the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the external structure of the electrolytic aluminum waste washing flotation machine of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the electrolytic aluminum waste washing flotation machine of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal front view structure of the electrolytic aluminum waste washing flotation machine of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the froth scraping assembly of the electrolytic aluminum waste washing flotation machine of the utility model;

[0025] Figure 5 The utility model is a schematic diagram of the structure of the flow guide mechanism of the electrolytic aluminum waste washing flotation machine.

[0026] In the figure: a first flotation box 1, a second flotation box 2, a partition 3, a stirring unit 4, a foam scraping mechanism 5, a rotating roller 51, a conveyor belt 52, a foam scraping assembly 53, a fixing seat 531, a scraper 532, a plug hole 533, a plug rod 534, a coil spring 535, a first drive motor 54, a closing plate 6, a foam inlet 61, a foam outlet 62, a foam blocking plate 7, an anti-overflow mechanism 8, a first anti-overflow plate 81, a second anti-overflow plate 82, a flow guide mechanism 9, a mounting plate 91, a flow guide hole 92, a auger 93, a second drive motor 94, and a bracket 95. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5 As shown, the utility model provides an electrolytic aluminum waste washing flotation machine, comprising a first flotation box 1 and a second flotation box 2 arranged at the left discharge end of the first flotation box 1, and a stirring unit 4 is arranged in both the first flotation box 1 and the second flotation box 2. Figure 4As shown, the stirring unit 4 is a third driving motor driving a stirring shaft to rotate, the bottom of the stirring shaft extends into the interior of the flotation box and is equipped with an impeller, which generates a centrifugal effect to form a negative pressure, stirs the slurry and the flotation agent, and refines the foam at the same time, so that the carbon adheres to the foam, floats to the surface of the slurry, and then forms mineralized foam, and floats to the liquid surface in the flotation box. A partition 3 is arranged on the top of the first flotation box 1 and the second flotation box 2. The partition 3 divides the top of the first flotation box 1 and the second flotation box 2 into two front and rear froth outlet channels, and the two froth outlet channels are both provided with a scraping mechanism 5. Closing plates 6 are arranged on both sides of the partition 3 above the second flotation box 2, and a froth outlet 62 and a froth inlet 61 are arranged on the left and right sides of the closing plate 6, respectively, and a foam blocking plate 7 is arranged on the left side of the froth inlet 61.

[0029] The two froth outlet channels are provided with an anti-overflow mechanism 8 , which includes a first anti-overflow plate 81 fixed to the front and rear sides of the first flotation box 1 and the second flotation box 2 and a second anti-overflow plate 82 fixed to the front and rear sides of the partition plate 3 .

[0030] like Figure 2 and Figure 3 As shown, the scraping mechanism 5 includes a plurality of rotating rollers 51 rotatably mounted between two first anti-overflow plates 81 and a conveyor belt 52 on the plurality of rotating rollers 51, a plurality of scraping components 53 are arranged on the conveyor belt 52, and a first driving motor 54 driving the rotating rollers 51 to rotate is arranged on the first flotation box 1. Figure 4 As shown, the scraper assembly 53 includes two fixed seats 531 fixed on the conveyor belt 52 and a scraper 532 arranged between the two fixed seats 531, a plug hole 533 is opened on the fixed seat 531, and plug rods 534 inserted into the plug hole 533 are arranged on both sides of the scraper 532, and a coil spring 535 is arranged between the plug rod 534 and the plug hole 533.

[0031] Due to the presence of the partition 3, the carbon-containing foam floats to the liquid surface from the foam outlet channels on both sides, and the first driving motor 54 drives one of the rotating rollers to rotate through the transmission belt, and drives multiple foam scraping components 53 to move through the conveyor belt 52, so as to push the foam on the first flotation box 1 to the second flotation box 2. When pushed to the foam inlet 61, the anti-overflow mechanism 8, the foam baffle plate 7 and the scraper 532 form a barrier, so that the foam enters the second flotation box 2 from the foam inlet 61, and the second flotation box 2 performs secondary flotation purification. The setting of the closing plate can prolong the waiting time of carbon powder in the second flotation box and improve the purification effect. The carbon-containing foam after the secondary purification floats out from the foam outlet 62 and is pushed out again by the foam scraping mechanism 5. When the scraper 532 touches the foam blocking plate 7, the scraper 532 rotates in the fixed seat 531. Since the height of the foam blocking plate 7 is smaller than the gap between the bottom end of the fixed seat 531 and the top wall of the closing plate 6, it will not hinder the rotation of the conveyor belt. After passing through the foam blocking plate 7, it is vertically reset under the action of the coil spring 535.

[0032] As a preferred technical solution of the utility model: a flow guide mechanism 9 is provided at the froth inlet 61, and the flow guide mechanism 9 includes a mounting plate 91 arranged on the inner wall of the second flotation box 2, a flow guide hole 92 is provided on the mounting plate 91, an auger 93 is provided in the flow guide hole 92, and the top of the auger 93 protrudes from the upper surface of the flow guide hole 92, a bracket 95 is fixed to the bottom of the mounting plate 91, and the bracket 95 is rotatably connected to the bottom end of the auger 93, and a second driving motor 94 for driving the auger 93 to rotate is provided on the partition 3. The auger 93 is driven to rotate under the drive of the second driving motor 94, and the foam is pushed into the second flotation box 2, so that it sinks better and improves the secondary purification effect.

[0033] As a preferred technical solution of the utility model: a plurality of second flotation boxes 2 can be arranged in sequence to improve the purification accuracy of carbon powder.

[0034] As used herein, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0035] For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances; for technicians in this field, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electrolytic aluminum waste washing flotation machine, characterized in that: The invention comprises a first flotation box (1) and a second flotation box (2) arranged at the left discharge end of the first flotation box (1), wherein a stirring unit (4) is arranged in each of the first flotation box (1) and the second flotation box (2), wherein a partition (3) is arranged at the top of the first flotation box (1) and the second flotation box (2), wherein the partition (3) divides the top of the first flotation box (1) and the second flotation box (2) into two front and rear froth outlet channels, wherein the two froth outlet channels are provided with a froth scraping mechanism (5), and closing plates (6) are arranged at both sides of the partition (3) above the second flotation box (2), wherein a froth outlet (62) and a froth inlet (61) are arranged at the left and right sides of the closing plate (6), respectively, and a froth blocking plate (7) is arranged at the left side of the froth inlet (61).

2. The electrolytic aluminum waste washing flotation machine according to claim 1, characterized in that: The two froth outlet channels are provided with an anti-overflow mechanism (8), which comprises a first anti-overflow plate (81) fixed on the front and rear sides of the first flotation box (1) and the second flotation box (2), and a second anti-overflow plate (82) fixed on the front and rear sides of the partition plate (3).

3. The electrolytic aluminum waste washing flotation machine according to claim 2, characterized in that: The foam scraping mechanism (5) comprises a plurality of rotating rollers (51) rotatably mounted between two first anti-overflow plates (81) and a conveyor belt (52) arranged on the plurality of rotating rollers (51); a plurality of foam scraping assemblies (53) are arranged on the conveyor belt (52); and a first driving motor (54) for driving the rotating rollers (51) to rotate is arranged on the first flotation box (1).

4. The electrolytic aluminum waste washing flotation machine according to claim 3, characterized in that: The foam scraping assembly (53) comprises two fixed seats (531) fixed on the conveyor belt (52) and a scraper (532) arranged between the two fixed seats (531); a plug hole (533) is provided on the fixed seat (531); plug rods (534) inserted into the plug hole (533) are provided on both sides of the scraper (532); and a coil spring (535) is provided between the plug rod (534) and the plug hole (533).

5. The electrolytic aluminum waste washing flotation machine according to claim 4, characterized in that: The height of the foam blocking plate (7) is smaller than the distance between the bottom end of the fixing seat (531) and the top wall of the closing plate (6).

6. The electrolytic aluminum waste washing flotation machine according to claim 1, characterized in that: A flow guide mechanism (9) is provided at the froth inlet (61), and the flow guide mechanism (9) comprises a mounting plate (91) arranged on the inner wall of the second flotation box (2), a flow guide hole (92) is provided on the mounting plate (91), an auger (93) is rotatably installed in the flow guide hole (92), and a second drive motor (94) for driving the auger (93) to rotate is provided on the partition plate (3).

7. The electrolytic aluminum waste washing flotation machine according to claim 6, characterized in that: A bracket (95) is fixed to the bottom of the mounting plate (91), and the bracket (95) is rotatably connected to the bottom end of the auger (93).

8. The electrolytic aluminum waste washing flotation machine according to claim 7, characterized in that: The top end of the auger (93) protrudes from the upper surface of the guide hole (92).

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