Blast furnace is the drum into the air the coke burning and reduction shaft furnace of ore smelting, is in high temperature and reducing atmosphere continuous iron making thermal equipment. In the last 20 years, the development of the global iron making technology is very 
fast, and the blast furnace is becoming more and faster. Nowadays, the life of blast furnace has been more than 15 years, the longest of which has reached more than 20 years. A new generation of service life of blast furnace will reach more than 20 years. With the furnace body design more reasonable, blast furnacerefractory materials are also continuously being developed and applied. Blast furnace lining refractory material needs more than any other process in the production of iron and steel. Refractory material to withstand high temperature thermal shock effect, wear and erosion of furnace charge, gas, the erosion of alkali metal, bosh following by molten iron and slag erosion, erosion. Therefore the problem of lining must be comprehensive consideration of various factors, selected according to the different parts of the cooling system of the furnace body and the different materials of the refractory material. In short, the selection of new high quality refractory materials is one of the important measures to prolong the life of the blast furnace.
fast, and the blast furnace is becoming more and faster. Nowadays, the life of blast furnace has been more than 15 years, the longest of which has reached more than 20 years. A new generation of service life of blast furnace will reach more than 20 years. With the furnace body design more reasonable, blast furnacerefractory materials are also continuously being developed and applied. Blast furnace lining refractory material needs more than any other process in the production of iron and steel. Refractory material to withstand high temperature thermal shock effect, wear and erosion of furnace charge, gas, the erosion of alkali metal, bosh following by molten iron and slag erosion, erosion. Therefore the problem of lining must be comprehensive consideration of various factors, selected according to the different parts of the cooling system of the furnace body and the different materials of the refractory material. In short, the selection of new high quality refractory materials is one of the important measures to prolong the life of the blast furnace.
The furnace body comprises a furnace body, bosh, belly, throat, hearth and bottom parts etc…
The furnace with air, slag hole, taphole, cooling system and gas collector and charging device etc… Development trend of blast furnace refractorymaterials
The furnace with air, slag hole, taphole, cooling system and gas collector and charging device etc… Development trend of blast furnace refractorymaterials
Preparation and properties of refractory materials is an important aspect of the improvement of blast furnace lining system. With the increase in production of blast furnace, furnace lining refractory system should be able to withstand the severe wear. Lining refractory system is mainly to prevent high temperature chemical erosion and carbon bricks and iron directly contact erosion or melting loss. In any production conditions, to prevent lining cracks is the first step in the establishment of the good effect of lining system, the high temperature gradient and no enough space for expansion are two main reasons that cause cracks, reasonable preparation lining can prevent or reduce the cracks.
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