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In which furnace smelting is done?

Answer
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Hint:
Smelting is a process of applying heat to ore to extract a base metal. it's a sort of extractive metallurgy. it's wont to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a chemical reducer to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducer is usually a fuel source of carbon, like coke.

Complete step by step answer:
Smelting may be a process of heating ores of varied metals within the presence of oxygen (for oxidation) or coke (for reduction) at temperatures beyond the melting point of metals.
Some of the foremost common sorts of furnaces used for metals and materials processing are:
• Bell Furnace
• Box Furnace
• Forging Furnace
• Quenching Furnace
• Rotary Furnace
• Reverberatory Furnace
• Vacuum Furnace
Reverberatory Furnace: A reverberatory furnace may be a metallurgical or process furnace that isolates the fabric being processed from contact with the fuel, but not from contact with combustion gases. In copper, tin, and nickel production, a furnace used for smelting or refining during which the fuel isn't in direct contact with the ore but heats it by a flame blown over it from another chamber. In steelmaking, this process, now largely obsolete, is named the steel production. the warmth passes over the fireside, during which the ore is placed, then reverberates back. The roof is arched, with the very best point over the firebox. It slopes downward toward a bridge of flues that deflect the flame in order that it reverberates.
So we’ve got that smelting completed in a reverberatory furnace.


Note:
Changes are made to enhance the assembly capacity of this furnace, although its basic construction has remained an equivalent. Roofs are made from refractory brick instead of the standard brick used earlier, and this has permitted higher temperatures and thus faster refining. Reverberatory smelting has recently been giving thanks to such newer processes as continuous smelting and therefore the use of electrical or flash furnaces.