Metal melting system and metal melting process with annular hot gas insulation layer

Abstract

The invention discloses a metal melting system with an annular hot gas heat preservation layer and a metal melting process. The system comprises a furnace lining, a melting furnace cavity formed by aninner cavity of the furnace lining, a heat preservation layer arranged outside the furnace lining, a furnace shell layer arranged outside the heat preservation layer, a combustion device arranged onthe side face of a furnace body, a liquid outlet, a feeding port and a heat preservation hot gas layer arranged between the heat preservation layer and the furnace lining. According to the system, after high-temperature hot flue gas generated by combustion in the hearth is led out, a new high-temperature flue gas heat preservation layer is formed outside the furnace lining, so the heat preservation effect can be greatly improved, loss of heat in the melting furnace cavity is reduced, the metal melting efficiency is improved, fuel consumption is reduced, meanwhile, the pressure in the melting furnace cavity can be well relieved, the temperature of the furnace body on the outermost side is reduced, and the production safety is improved.

Description

technical field [0001] The invention relates to metal smelting equipment and a process, in particular to a metal melting system and a metal melting process with an annular hot gas insulation layer, belonging to the technical field of metal processing. Background technique [0002] At present, in the metal smelting process, especially in the production process of fine spherical aluminum powder, it is necessary to use a melting furnace to melt the raw material aluminum ingot. 103. Furnace roof 104, chimney 105, special-shaped brick 107 for pouring liquid, metal feeding port 108, furnace door 109, etc., wherein the hearth is composed of standard refractory bricks 111 and insulation layer 110. Since the furnace is built with standard refractory bricks, there are gaps on the four sides of each brick in contact with the furnace, so the entire furnace is distributed with multiple horizontal and vertical gaps mixed with refractory mud. The gap area accounts for about 3-5% of the en...

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Problems solved by technology

[0003] Therefore, in summary, in the prior art, there are still many deficiencies such as poor heat preservation effect, difficult cleaning, short service life, etc. in the metal smelting process, which greatly increases the production cost and reduces the production efficiency, and also makes the The excellent rate of product quality is greatly reduced

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