Inner structure of high-efficiency energy-saving aluminum and aluminum alloy isothermal smelting furnace

Abstract

The invention provides an inner structure of a high-efficiency energy-saving aluminum and aluminum alloy isothermal smelting furnace, a partition wall is arranged at the middle part of a hearth, the hearth is divided into a furnace starting melting region and a heating region through the partition wall, a feeding well and a circulating pump are arranged outside a furnace body, the inlet of the circulating pump is communicated with the hearth of the heating region, the outlet of the circulating pump is communicated with the feeding well, the feeding well is communicated with the hearth of the furnace starting melting region, the partition wall is provided with an inclined surface with an inclination angle of 3 to 20 degrees, a guiding region is arranged at one end of the partition wall, and the guiding region is arranged between the furnace starting melting region and the heating region and is in the shape of a spindle-shaped small-curvature arc. When in working, an aluminum liquid in the furnace starting melting region passes through the guiding region and enters the heating region in a more advantageous flowing state. The inner structure of the aluminum and aluminum alloy isothermal smelting furnace enhances the heat exchange between the aluminum liquid and a heater, reduces the scouring erosion of the aluminum liquid to a wall surface and enables the temperature to be more uniform by adjusting the flowing direction of the aluminum liquid in the heating region.

Description

technical field [0001] The invention relates to an isothermal melting furnace for aluminum and aluminum alloys in the aluminum smelting industry, in particular to a high-efficiency and energy-saving inner structure of an isothermal melting furnace for aluminum and aluminum alloys, belonging to the technical field of metal smelting. Background technique [0002] There are many difficulties in the smelting of aluminum and aluminum alloys. First, compared with other metals, aluminum has a higher specific heat capacity and latent heat of fusion. Second, aluminum has a small blackness and is easily oxidized at high temperatures. For the industrial smelting of aluminum and aluminum alloys, the most widely used at home and abroad is the reflection melting furnace, followed by the induction melting furnace and the crucible melting furnace, of which the reflection melting furnace accounts for the vast majority. These types of furnaces have their own advantages and disadvantages, but ...

AI Technical Summary

Problems solved by technology

It is very important whether the molten aluminum in the heating zone can fully exchange heat with the heater. If the molten aluminum avoids the heater due to resistance when flowing through the heating zone, or only part of the molten aluminum passes through the heater for heat exchange, then the heater’s The heat cannot be fully utilized; the local temperature of the heater is very high but cannot be absorbed by the aluminum liquid, which affects the thermal efficiency, causes the system temperature to be uneven, and affects the life of the heater; according to the characteristics of the fluid, the stroke space changes will produce swirl, swirl It not only consumes energy but also increases the erosion and erosion of the wall surface

[0004] It can be seen that the internal structure of the isothermal melting furnace has a greater impact on the entire system

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