Magneco/Metrel, Inc. has signed a contract to supply its advanced colloidal silica (sol-gel)-bonded, nanoparticulate refractories for the construction of the world’s largest blast furnace, a 5500-cubic-meter working volume furnace with a capacity of over 5 million tons per year, and located in Caofeidan, Hebei Province, China. Under the terms of the agreement with Shougang Jingtang United Iron and Steel (a joint venture of the Shougang Group and the Tang Shan Iron and Steel Group) and the China Shougang International Trade and Engineering Corp., Magneco/Metrel will provide and install various grades of its patented sol-gel-bonded monolithic refractories. The technology will be applied to the insulating, cooling and leveling layers around the water pipes of the sub-hearth, the arrestor course in direct contact with the iron bath, and the artificial protective skull of the carbon hearth wall of the furnace.
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