Reverberatory Furnace, also known as flame rever-beratory furnace. It is a kind of metallurgical furnace that melts metals by heating materials directly through the flame. It consists of three main parts: Combustion chamber, melting chamber and draught flue (chimney). The whole furnace is a rectangular smelting chamber lined with refractory material. The reflector furnace has the advantages of simple structure, small investment and wide range of fuels (such as coal, gas, heavy oil, etc.). It is a kind of important smelting equipment for copper, nickel, tin and other non-ferrous metals. It is widely used to treat ores and concentrates, especially fine grained powders. It can also be used for smelting iron alloys and fire refining of metals. But because the flame is in direct contact with the metal, the oxidation loss of the metal is great. Reverberatory furnace is commonly used as roasting equipment in metallurgy, chemical industry and other fields.

Furnace parts characteristics

Furnace bottom: The furnace bottom is an important part of the reverberatory furnace. Because it has been under the action of high temperature for a long time, it bears the huge pressure of the melt, and constantly by melt erosion and chemical erosion, so it must be built with appropriate refractory materials or use ramming sintering furnace bottom to prolong the service life of the furnace. The bottom of the furnace is required to be solid, resistant to corrosion and able to expand freely when heated.

Furnace wall: The furnace wall is directly built on the furnace foundation. The furnace wall is subject to the physical and chemical action of high temperature melt and high temperature furnace gas, so the inner layer of the furnace wall of the smelting reverberatory furnace is mostly built with magnesia bricks and magnesia aluminum bricks, the outer layer is built with clay bricks, and some important parts are built with chrome-magnesia bricks. The inner and outer walls of metal melting furnace with low melting point, such as aluminum melting reverberatory furnace, can be built with clay bricks.

Furnace top: The furnace top of the reverberatory furnace is divided into brick-built arch roof and suspended furnace top from the structural form. The reverberatory furnace with periodic operation and small furnace width usually adopts brick arch roof. Large-scale copper smelting reverberatory furnace mostly adopts hanging furnace top.

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