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我国是个贫锰矿丰富的国家,对于高铁高磷贫锰矿采用火法富集——富渣法生产高品位的富锰渣,仍然是有效的和现实的方法。 生产优质锰系合金,大都要搭配些富锰渣,因而它的冶金性能以及改善它性能的途径,受到铁合金工作者愈来愈多的注意。 一般含到SiO_2较高(25～30%)的富锰渣与锰矿石相比,它熔化温度低、软化区间长和粘度值较大,导致冶炼锰系铁合金炉缸温度提不起来,软熔带过长,炉料的透气性变坏,这些都会影响冶金炉的技术经济指标。
China is a country rich in manganese ore, and it is still an effective and realistic method for the production of high-grade manganese-rich slag by fire enrichment-rich slag method for high-phosphorus and high-phosphorus depleted manganese ore. Production of high-quality manganese alloy, mostly with some manganese-rich slag, so its metallurgical properties and ways to improve its performance by ferroalloy workers more and more attention. Compared with manganese ore, the manganese-rich slag containing higher SiO 2 (25~30%) generally has lower melting temperature, longer softening interval and larger viscosity value, resulting in a lower temperature of smelting manganese-based ferroalloy hearth, Belt is too long, the deterioration of the permeability of the charge, which will affect the technical and economic indicators of metallurgical furnace.