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US 2022/0298591 A1Published application
Tuyere stock, method of fabricating the same, and air blast system for melting furnace
AssigneeExcello Co., Ltd.
InventorSeung Jae PARK
Life of this patent
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Abstract
An air blast system for melting furnaces includes: a supply unit supplying hot air into a melting furnace; a bustle pipe connected to the supply unit; a tuyere stock connecting the bustle pipe to the melting furnace to supply hot air from the bustle pipe to the melting furnace in a distributed manner; and a temperature management module determining whether the tuyere stock is damaged by comparing a temperature of the tuyere stock with a preset reference temperature.
Claims13
A tuyere stock comprising:
- a refractory layer having an inner surface defining a flow channel contacting hot air;
- a heat conduction layer disposed on an outer surface of the refractory layer and heated by heat transferred from the refractory layer;
- an outer heat insulation layer disposed on an outer surface of the heat conduction layer and blocking transfer of heat from the heat conduction layer to an outside environment or transfer of external heat to the heat conduction layer;
- and
- a temperature sensor detecting a temperature of the heat conduction layer.
2 more elements
A method of fabricating a tuyere stock for supplying hot air delivered from a supply unit into a melting furnace, the method comprising:
- an outer heat insulation layer formation step in which an outer heat insulation layer is formed on an inner surface of a shell layer;
- a heat conduction layer formation step in which a heat conduction layer is formed on an inner surface of the outer heat insulation layer;
- a refractory layer formation step in which an insert member is inserted into an inner surface of the heat conduction layer, followed by formation of a refractory layer between the insert member and the heat conduction layer;
- and
- an insert member removal step in which the insert member is removed.
2 more elements
Dependencies are inferred from the claim text.