Copper and copper alloy efficient melting method

Abstract

The invention relates to the technical field of casting, in particular to a copper and copper alloy efficient melting method. Smelting equipment used in the casting method comprises a shell, an auxiliary structure, a feeding structure, a flue gas discharging structure, a gas inlet structure, a smelting furnace body, a partition structure and a heat preservation layer, wherein the shell for providing protection and heat preservation is internally connected with the smelting furnace body used for melting copper and copper alloy. Flue gas generated by combusting coal fuel in a combustion chamberis fully and quickly discharged through the flue gas discharging structure, so that the coal fuel is fully and quickly combusted, the partition structure fully and quickly absorbs heat, the melting efficiency of the copper in a smelting chamber is improved; and meanwhile, the flue gas discharging structure is matched with the gas inlet structure, the oxygen entering amount in the combustion chamber is reduced in the flue gas discharging process, oxygen is fully contacted with the coal fuel, the coal fuel is fully combusted while the oxygen is rapidly consumed, so that the coal utilization rateis increased, the amount of oxygen discharged along with the flue gas is reduced, and the flue gas is fully and quickly discharged while the oxygen waste is avoided.

Description

technical field [0001] The invention relates to the technical field of melting and casting, in particular to a high-efficiency melting and casting method for copper and copper alloys. Background technique [0002] Copper alloy is an alloy composed of pure copper as the base and adding one or several other elements. Pure copper is purple-red, also known as red copper. It has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance. It is mainly used to make power generation. Electrical equipment such as machines, busbars, cables, switchgear, transformers, heat exchangers, pipes, and flat collectors for solar heating devices. Commonly used copper alloys are divided into three categories: brass, bronze, and white copper. Copper alloy casting is to melt copper and copper alloy raw materials at high temperature, and then directly cast them into products. [0003] When traditional copper and copper alloys are melted and cast, coal is added insid...

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Problems solved by technology

[0003] When traditional copper and copper alloys are melted and cast, coal is added inside the melting furnace as a raw material for combustion to melt copper and copper alloys at high temperature. When a large amount of coal is added inside the melting furnace, a large amount of oxygen needs to be added inside the melting furnace for coal combustion. However, when the flue gas is not burned, it is easy to emit oxygen together, which will cause a waste of oxygen and reduce the combustion efficiency of coal

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