METHOD FOR PREHEATING AND SMELTING MANGANESE ORE SINTER

Described is a method and equipment for preheating and smelting manganese ore sinter. The method comprises feeding feed mixture (1) containing manganese ore sinter (2), reducing agent (3), and fluxingagent (4) into an submerged electric arc furnace (5), smelting feed mixture (1) to form a layer containing liquid manganese alloy and a layer containing slag, withdrawing liquid manganese and, discharging carbon monoxide containing carbonaceous gas (6), combusting carbon monoxide containing carbonaceous gas (6) in presence of oxygen such as air in a burner (7) to form carbon dioxide containing carbonaceous gas (9), and heating said feed mixture (1) in a pre-treatment silo (8) prior feeding said feed mixture (1) into the submerged electric arc furnace (5) with said carbon dioxide containing carbonaceous gas (9). 描述了用于预热和熔炼锰矿石烧结物的方法和设备。该方法包括将含有锰矿石烧结物(2)、还原剂(3)和助熔剂(4)的进料混合物(1)进料至埋弧电炉(5)中，熔炼进料混合物(1)以形成含液体锰合金的层和含炉渣的层，提取液体锰并且排放含有一氧化碳的含碳气体(6)，在燃烧器(7)中在存在氧例如空气的情况下燃烧含有一氧化碳的含碳气体(6)以形成含有二氧化碳的含碳气体(9)，且在将所述进料混合物(1)进料至埋弧电炉(5)中