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Introduction of thermal insulation material for blast furnace 6

Categories: NewsStars: 3Stars Visit: - Release time: 2018-09-20 16:00:00
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     Last issue we introduced thermal insulation material used at blast furnace tuyere. This issue we will introduce thermal insulation material used at blast furnace tap hole.  

     Refractory material used at blast furnace tap hole. The tap hole is subject to erosion and friction of molten iron, slag, alkali and the thermal shock caused by temperature change from the start of the tapping to the end of the tapping. The refractory material at the tap hole is often severely damaged. In the past, the refractory materials used in the tap hole were clay refractory bricks and high alumina refractory bricks. At present, in addition to continuing to use the above refractory bricks, Al2O3-SiC-C materials or carbon blocks with excellent properties are mainly used.

     Above is the introduction of thermal insulation material used at tap hole. Next issue we will introduce thermal insulation material used at blast furnace hearth and bottom. Please stay tuned.

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