When designing the lining of reverberating furnaces and mixers, it is necessary to take into consideration the specifics of the service of refractories and the properties of molten aluminum. In particular, a barrier layer is to be provided in the lining of the contact surface of the molten with refractories. The main function of the barrier layer is to prevent invasion of the molten in the heat insulation layer. If there is no barrier layer, the metal-impregnated hearth is a monolith that is hard to remove during disassembly operations.
The lining of reverberating smelting furnaces and mixers are of multi-layer type. It may contain protective, working, barrier, heat insulation layers.
The lining design of the roof, hearth, basin walls and walls above the metal level vary. The wall thickness of reverberating furnaces and mixers does not normally exceed 450 mm; the hearth—600 mm; the barrier layer—from 80 to 120 mm.
Various elements of the lining of reverberating furnaces and mixers may be provided by using the following four techniques:
Our lining systems guarantee quick and easy installation, good heat insulation, and overall savings on power costs.
The wide range of heat insulation materials allows us to perform successful repairs on reverberating furnaces of aluminum melting and exposure.
The furnace basin lining is multi-layered:
The furnace wall lining above the metal layer is multi-layered:
The lining of the baffle, framework, and burner unit areas is multi-layered:
The furnace roof lining is multi-layered:
The lining of the gas duct, recuperator, and chimney stack are made of various lightweight gunned castables, as well as insulation fire-clay grog concretes.