Manganese ore fire method enrichment ore dressing process
Fire manganese ore beneficiation process Enrichment: Fire manganese ore enrichment process is high phosphorus, high iron ores refractory poor one selected division method is generally called manganese-rich slag. The essence is a high-temperature sorting method for selectively separating manganese, phosphorus and iron by controlling the temperature of manganese, phosphorus and iron in different temperatures in a blast furnace or an electric furnace.
China has been using fire law for nearly 40 years. In 1959, Hunan Shaoyang Zijiang Iron Works was tested on a 9.4m3 small blast furnace and obtained preliminary results. Then, in 1962, Shanghai Shijingshan ferroalloy plant and blast furnace steel mills are in a manganese-rich slag. In 1975, Hunan Agateshan manganese ore blast furnace not only produced manganese-rich slag, but also recovered lead , silver and pig iron (commonly known as semi-steel) at the bottom of the furnace, providing a basis for comprehensive utilization. After entering the 1980s, the production of manganese-rich slag has developed rapidly. The production of manganese-rich slag has been developed in Hunan, Hubei, Guangdong, Guangxi, Jiangxi, Liaoning, and Jilin.
The enrichment process of the fire method is simple, the production is stable, and the iron and phosphorus in the ore can be effectively separated to obtain manganese-rich, low-iron, low-phosphorus manganese-rich slag, and the manganese-rich slag generally contains Mn 35% to 45%. Mn/Fe?12～38, P/Mn<0.002, is a high-quality manganese-based alloy raw material, and it is also an artificial rich ore that is difficult to achieve the above three indexes at the same time. Therefore, the enrichment of fire method is a promising method for mineral processing in China for high-phosphorus high-iron and low-manganese refractory ore.
Sand Base Aac Manufacturing Plant, which is a AAC block production process with sand as the main material, a complete process mainly includes crusher, ball mills, bucket elevator, mixing center, pouring machine, autoclave, crane, cutting machine boiler , dust collectors and so on, the dimension of the block is adjustable. The crusher is used to crush the lime into small gravel for further grinding purpose, one Ball Mill is to grind the sand into powder and the other one is to grind lime. After batching and thoroughly mixing, the slurry is poured into a mound, where the green cake will go through several different processes such as pre-curing, cutting and curing in the autoclave. Then the finished AAC block is produced and can be delivered to the market.
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