Overflow aluminum discharging method for refined aluminum tank

Abstract

The invention discloses an overflow aluminum discharging method for a refined aluminum tank, which is characterized in that an overflow chute is arranged at the top of the refined aluminum tank, and when the liquid level of refined aluminum liquid is higher than the overflow chute, the refined aluminum liquid flows out of the overflow chute and falls into a refined aluminum two-man ladle below the overflow chute. According to the method, the online overflow aluminum discharge process of the refined aluminum tank is realized by fully utilizing the characteristic that the height difference exists between the operation surface of the refined aluminum workshop and the ground plane and the principle that the refined aluminum liquid overflows automatically after being heightened, and the method is simple in structural configuration and convenient to operate; a plurality of refined aluminum tanks in a refined aluminum workshop can share one two-man ladle transport vehicle and a refined aluminum two-man ladle, aluminum discharging operation is carried out in real time according to needs, investment is saved, and the aluminum discharging operation process of the refined aluminum tanks is greatly simplified. Unmanned operation in the aluminum discharging process of the refined aluminum tank can be basically realized, and the labor cost of production can be greatly reduced; and operators are prevented from being in direct contact with high-temperature production equipment, and the operation environment of aluminum tapping operation can be greatly improved, so that a solid foundation is laid for constructing environment-friendly enterprises.

Description

Technical Field

[0001] The invention relates to a method for overflowing aluminum from a refined aluminum tank, belonging to the technical field of refined aluminum production. Background Art

[0002] As aluminum purity increases, its corrosion resistance, plasticity, conductivity, and reflectivity are greatly enhanced. Furthermore, the excellent properties of high-purity refined aluminum have led to an increasingly wide range of applications. In recent years, with the steady growth of China's economy, demand for refined aluminum, which is purer than primary aluminum, has rapidly increased in many areas of modern industry, such as electronics, electrolytic capacitors, integrated circuit wiring materials, computer memory disks, superconductors, magnetic levitation materials, spray coatings, low-temperature electromagnetic components, solar energy utilization, aerospace, automotive, and military applications. Therefore, the development of refined aluminum tanks and supporting technologies tailored to China's specific conditions is of great significance.

[0003] At present, three-layer liquid aluminum electrolytic refining technology is a widely used industrial production technology for purifying refined aluminum (AL≥99.998%) at home and abroad. The traditional methods of tapping aluminum from refined aluminum tanks mainly include: vacuum mechanical tapping and manual scooping of aluminum with a spoon.

[0004] Traditional aluminum tapping method Figure 2 That is, the vacuum mechanical aluminum tapping method. This method requires a large investment and consumes a large amount of compressed air energy. In particular, the siphon pressure of vacuum aluminum tapping is relatively high, which can easily cause internal turbulence and interface fluctuations in the refined aluminum liquid in the refined aluminum tank during the aluminum absorbing process, resulting in increased production instability, resulting in losses in the secondary oxidation reaction of refined aluminum and reduced current efficiency.

[0005] Figure 3 That is, the method of manually scooping out aluminum with a spoon has the disadvantages of high labor intensity, poor working environment and low working efficiency.

[0006] The above two traditional aluminum tapping methods for refined aluminum troughs are not conducive to the flexible layout of refined aluminum trough series production, and have shortcomings such as unreasonable investment, low work efficiency, and poor working environment. They are no longer suitable for the needs of my country's new industrialization process. Summary of the Invention

[0007] The object of the present invention is to provide a method for overflowing aluminum from a refined aluminum tank, which has the advantages of relatively simple device structure, high efficiency, low investment and low energy consumption.

[0008] The technical solution of the present invention is a method for overflowing aluminum from a refined aluminum tank, wherein an overflow chute is provided at the top of the refined aluminum tank. When the liquid level of the refined aluminum liquid is higher than the overflow chute, the refined aluminum liquid flows out through the overflow chute and falls into the refined aluminum ladle below the overflow chute.

[0009] In the aforementioned method for overflowing aluminum from a refined aluminum tank, the refined aluminum ladle is transported along a track by a ladle transport vehicle.

[0010] In the aforementioned method for overflowing aluminum from a refined aluminum tank, the track passes through multiple refined aluminum tanks.

[0011] In the aforementioned method for overflowing aluminum from a refined aluminum tank, during the outflow of the refined aluminum liquid, its size can be adjusted by a throttle valve on the overflow chute. When the refined aluminum ladle leaves the overflow chute at its location, the throttle valve on the overflow chute is closed to prevent the refined aluminum liquid from flowing out.

[0012] Beneficial effects of the present invention: Compared with the prior art, the present invention has the following advantages: 1) The method of the present invention fully utilizes the height difference between the operating surface and the ground level of the aluminum refinery workshop and the principle that the refined aluminum liquid overflows as it rises, to achieve an online overflowing aluminum tapping process from the refined aluminum tank. It has a simple structure and is easy to operate (simply move the ladle transport vehicle to align with the overflow chute). 2) The method of the present invention enables multiple aluminum troughs in the aluminum refinery workshop to share a set of ladle transport vehicles and aluminum ladle lifts, allowing aluminum tapping operations to be performed in real time on demand, saving investment and significantly simplifying the aluminum tapping operation process. 3) The method of the present invention can basically realize unmanned operation of the aluminum tapping process of the refined aluminum tank, which can significantly reduce the labor cost of production; 4) The method of the present invention avoids direct contact between operators and high-temperature production equipment, which can significantly improve the operating environment of aluminum tapping operations, thereby laying a solid foundation for building an environmentally friendly enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the existing vacuum mechanical aluminum discharging method; Figure 3 Schematic diagram of the existing method of workers scooping out aluminum with a spoon.

[0014] Reference numerals: 1-refined aluminum tank, 2-refined aluminum liquid, 3-overflow chute, 4-throttle valve, 5-refined aluminum ladle, 6-ladle transport vehicle, 7-track. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.

[0016] An embodiment of the present invention: A method for overflowing aluminum from a refined aluminum tank is provided, wherein an overflow chute 3 is provided at the top of the refined aluminum tank 1. When the liquid level of the refined aluminum liquid 2 is higher than the overflow chute 3, the refined aluminum liquid 2 flows out through the overflow chute 3 and falls into the refined aluminum ladle 5 below the overflow chute 3.

[0017] First, the refined aluminum tank 1 is a continuous production metallurgical furnace that continuously produces refined aluminum liquid (product) 24 hours a day. Secondly, the refined aluminum liquid 2 produced by the refined aluminum tank 1 is located on the top layer of the tank. As production continues, the height of the refined aluminum liquid 2 continues to increase. In this way, when the height of the refined aluminum liquid 2 exceeds the overflow port, it can flow to the refined aluminum ladle 5 through the overflow chute 3, thereby completing the online overflow aluminum operation process of the refined aluminum tank 1.

[0018] The refined aluminum ladle 5 is transported along the track 7 by the ladle transport vehicle 6. The transportation of the refined aluminum ladle 5 is achieved by the ladle transport vehicle 6. The track 7 is provided to ensure that when the ladle transport vehicle 6 stops, the refined aluminum ladle 5 is at a relatively appropriate distance from the overflow chute 3, so as to prevent the refined aluminum liquid 2 from falling to the outside of the refined aluminum ladle 5 when it flows out.

[0019] The track 7 passes through multiple aluminum ladle tanks 1, so that multiple aluminum ladle tanks 1 in the aluminum ladle workshop can share a set of ladle transport vehicles 6 and aluminum ladle tanks 5.

[0020] During the outflow of the refined aluminum liquid 2, its size can be adjusted by the throttle valve 4 on the overflow chute 3. When the refined aluminum ladle 5 leaves the overflow chute 3 at its position, the throttle valve 4 on the overflow chute 3 is closed to prevent the refined aluminum liquid 2 from flowing out.

[0021] Using the method of the present invention, taking a 60kA refined aluminum tank 1 as an example, the daily production of refined aluminum liquid of this tank type is about 0.3355×60×0.97×24=468.6kg / day. According to the tank area of 5.1×2.4m and the density of refined aluminum liquid 2 of 2.3t / m 3 It is calculated that the height of the refined aluminum liquid 2 in the refined aluminum tank 1 changes by about 1.665 cm every day. That is, according to the daily scheduled aluminum tapping method, 1.665 cm of refined aluminum liquid 2 is overflowed every day by overflowing aluminum tapping, which can maintain the height of the refined aluminum liquid 2 layer in the refined aluminum tank 1 unchanged and the normal operation of production.

Claims

1. A method for overflowing aluminum from a refined aluminum tank, characterized by: By arranging an overflow chute (3) at the top of the refined aluminum tank (1), when the liquid level of the refined aluminum liquid (2) is higher than the overflow chute (3), the refined aluminum liquid (2) flows out through the overflow chute (3) and falls into the refined aluminum ladle (5) below the overflow chute (3).

2. The method for overflowing aluminum from a refined aluminum tank according to claim 1, characterized in that: The refined aluminum ladle (5) is transported along the track (7) via the ladle transport vehicle (6).

3. The method for overflowing aluminum from a refined aluminum tank according to claim 2, characterized in that: The track (7) passes through a plurality of refined aluminum tanks (1).

4. The method for overflowing aluminum from a refined aluminum tank according to claim 1, characterized in that: During the outflow of the refined aluminum liquid (2), the size of the flow can be adjusted by the throttle valve (4) on the overflow chute (3). When the refined aluminum ladle (5) leaves the overflow chute (3) at its location, the throttle valve (4) on the overflow chute (3) is closed to prevent the refined aluminum liquid (2) from flowing out.

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