Lifting aluminum water degassing refiner driven by gears

Abstract

The invention discloses a lifting aluminum water degassing refiner driven by gears. The lifting aluminum water degassing refiner driven by the gears is composed of two rows of straight gear racks (3), a degassing motor (4), a degassing cantilever (5), a degassing rotor (7), linear guide ways (8), straight gears (9), a linear sliding block (10), a degassing stand column (12) and a lifting motor (13). The degassing rotor (7) is installed on the degassing cantilever (5), two rows of straight gears (9) and two rows of linear guide ways (8) are fixed to the degassing stand column (12), and the degassing cantilever (5) slides up and down along the linear guide ways (8). The lifting aluminum water degassing refiner driven by the gears is characterized in that the straight gears (9) driven by the lifting motor (13) are arranged on the degassing cantilever (5), and the straight gears (9) rotate to go up and down along the two rows of straight gear racks (3). According to the lifting aluminum water degassing refiner driven by the gears, when aluminum casting is conducted, the phenomenon that the degassing rotor is stuck in the lifting process is avoided, and moreover the risk that the degassing rotor falls off suddenly cannot happen.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal smelting, in particular to a gear-driven lifting aluminum water degassing refiner for refining cast aluminum alloys. Background technique [0002] As we all know, during the smelting process of cast aluminum alloy, there will be a large amount of hydrogen in the molten aluminum; when the molten aluminum solidifies at 660°C, the solubility of the hydrogen will drop sharply. Due to the fast cooling rate and the low temperature of the melt, hydrogen cannot escape from the solidified aluminum; and the hydrogen remaining in the casting will form casting defects such as pinholes and porosity. Therefore, when purifying the cast aluminum alloy melt (also known as refining), the gas and inclusions in the melt must be removed. The degasser breaks up the large bubbles of the inert gas into very fine small bubbles through the rotor that rotates at high speed and injects the inert gas, and disperses...

AI Technical Summary

Problems solved by technology

Disadvantages: First, the traditional degasser drives the degassing rotor up and down through the sprocket chain drive. During the degassing process, the splashed aluminum liquid is easy to stick to the transmission chain, causing the degassing rotor to go up and down during the degassing process. Caton phenomenon

In the process of descending, it is also driven by the power of the motor, and the weight of the degassing cantilever is also downward. The addition of the two causes the force to be unstable, and the damage to the motor shaft of the power component is relatively large.

The third is that the weight of the degassing cantilever is suspended on one side of the column, the center of gravity is unbalanced, and the cantilever is easy to tilt downward

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