Product Description
The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. The raw materials require 6 to 8 hours to descend to the bottom of the furnace where they become the final product of liquid slag and liquid iron. These liquid products are drained from the furnace at regular intervals. The hot air that was blown into the bottom of the furnace ascends to the top in 6 to 8 seconds after going through numerous chemical reactions. Once a blast furnace is started it will continuously run for four to ten years with only short stops to perform planned maintenance.
High alumina brick is made from high alumina crog, which is chosen, screened and high temperature sintered. This kind of production's acid-resistance, alkali-resistance are good. And the refractoriness is high. It can be used in blast furnace, hot-blast stove, the roof of electric stove and ladle backing layer.
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