Aluminum melting holding furnace for gas crucible

Abstract

The invention relates to the field of mechanical casting, in particular to an aluminum melting holding furnace for a gas crucible. The aluminum melting holding furnace for the gas crucible comprises the crucible, a furnace body, an air blower, a gas burner and a flue and further comprises a heat exchanger. The heat exchanger is arranged on the flue. A cold air inlet and a hot air outlet are formed in the heat exchanger. An air outlet of the air blower communicates with the cold air inlet in the heat exchanger. The hot air outlet of the heat exchanger communicates with an air inlet of the gas burner. An insulating layer is arranged on the outer side of the furnace body. According to the aluminum melting holding furnace for the gas crucible, due to the fact that the air blower conveys cold air into the heat exchanger, the heat of the flue is absorbed by the heat exchanger, the cold air input by the air blower is heated into hot air, then the hot air is conveyed into the gas burner to replace the original cold air, the hot air and gas are mixed and burned, the energy recycling is achieved, and meanwhile the temperature is lowered when waste gas passes the flue and is discharged through the flue; and meanwhile the insulating layer is additionally arranged on the outer side of the furnace body, the loss of the heat is reduced, and the purposes of improving the environment temperature field and saving energy are achieved.

Description

technical field [0001] The invention relates to the field of mechanical casting, in particular to a gas-fired crucible melting aluminum holding furnace. Background technique [0002] Casting is one of the basic processes of modern machinery manufacturing industry. As a metal thermal processing technology, casting has gradually matured in my country. Foundry machinery is to use this technology to smelt metal into a liquid that meets certain requirements and pour it into the mold. After cooling, solidification, and cleaning, all the mechanical equipment that can be used to obtain castings with predetermined shape, size and performance, Also known as casting equipment. [0003] The gas-fired crucible melting aluminum holding furnace currently used in the foundry industry is mainly composed of a crucible, a furnace body, a blower, a gas burner, and a flue. The crucible and the furnace body form a closed combustion space. The air outlet of the blower communicates with the gas ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the temperature of the exhaust gas is very high when it is discharged through the flue, which not only affects the environment, but also wastes energy. At the same time, because there is no insulation layer, the temperature of the furnace body drops rapidly, and it is necessary to continuously replenish the gas for combustion, which also wastes energy.

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