Upper part immersed heating and melting heat-preserving furnace

Abstract

The invention discloses an upper part immersed heating and melting heat-preserving furnace, relates to a heating and melting heat-preserving furnace, and aims to provide an upper part immersed heating and melting heat-preserving furnace, which has the advantages of low energy consumption, high thermal conversion rate, safety and convenience in use and low failure rate. The upper part immersed heating and melting heat-preserving furnace comprises a furnace body, a furnace cover and a heater, wherein the inner cavity of the furnace body comprises a heating area, a feeding area and a discharging area; the feeding area and the discharging area are communicated with the heating area respectively; the furnace cover is embedded into the opening of the heating area; the top of the furnace cover is further provided with vertical through holes; the heater is embedded into the vertical through holes; the heating position of the heater extends into the inner cavity of the heating area.

Description

Technical field [0001] The invention relates to a heating and melting holding furnace, in particular to a heating and melting holding furnace mainly used for smelting low-melting non-ferrous metals and their alloys. Background technique [0002] The non-ferrous metal heating furnace is the core equipment for melting, heat preservation and purification of aluminum, zinc and their alloys in the hot-dip plating and die-casting industries. Its annual consumption of aluminum and zinc account for 35% and 50% of the total domestic consumption of aluminum and zinc respectively. . At present, most of the traditional heating furnaces for non-ferrous metals in our country use iron crucible external heating methods, which have problems such as severe crucible corrosion, high energy consumption, serious environmental pollution, and low resource utilization, especially due to the formation of large amounts of slag due to zinc-iron and aluminum-iron reactions , Causing problems such as large l...

AI Technical Summary

Problems solved by technology

[0004] The current reported bottom immersion heating non-ferrous metal heating furnace, that is, the heating system is inserted into the furnace from the bottom of the furnace. This method is prone to liquid leakage accidents when the protective sleeve is damaged. When replacing the heating system, the entire furnace needs to be replaced. The release of molten metal is time-consuming and energy-consuming, and the operation is very inconvenient

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