Anhydrous ramming mass for submerged arc furnaces
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Mortar-based materials
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The Submerged Arc Furnace (SAF) utilizes arc and resistive heating to convert electrical energy into thermal energy, enabling the reduction of metal oxides from ores in a closed or semi-closed environment. As a core piece of equipment in the metallurgical industry for high-temperature reduction smelting, it is primarily used to produce ferroalloys (such as silicon iron, manganese iron, and chromium iron), calcium carbide (CaC₂), yellow phosphorus, and other key products. Traditionally, materials used for furnace tap holes (the slag and iron outlets of SAFs)—often simple, poorly designed, and crudely manufactured—have led to accelerated erosion of refractory materials in the tap hole area, severe oxidation damage, and frequent incidents of tap hole burn-through. As a result, the furnace tap hole has become one of the major factors limiting the operational lifespan of SAFs. To address these challenges, Zhengzhou Kexin Refractory Materials Co., Ltd. has developed a series of waterless ramming compounds tailored specifically to the unique conditions of each smelting process. These compounds are precisely matched to factors such as the type of smelted product, slag and iron composition, smelting temperature, furnace lining material, tap hole operating environment, and front-end furnace equipment. By doing so, the company helps customers maximize value while ensuring reliable performance. Notably, these waterless ramming compounds have demonstrated excellent results across a wide range of applications, including silicon iron, nickel iron, industrial silicon, manganese iron, chromium iron, calcium carbide, yellow phosphorus production, precious metals processing, and even the treatment of acid-washed stainless steel sludge and dust removal powders—proving their versatility and effectiveness in diverse mineral smelting scenarios.
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