First, the remaining slag smelting iron alloy remaining slag smelting iron alloy was first proposed in Japan a new ferroalloy production process, in Japanese called double taphole process or a continuous operation called Chi Fa m, slag resistance referred to in Germany Smelting. The method is characterized in that it replaces the arc heat of the conventional method by using the slag resistance heat, and promotes the expansion of the reaction zone in the furnace, thereby achieving the purpose of reducing power consumption, improving element recovery rate and productivity. The slag retention method is used for the smelting of manganese silicon alloy and high carbon ferromanganese, showing the following advantages:
(1) The energy conversion rate is stable in the slag layer;
(2) The temperature of the liquid released during the tapping operation is stable;
(3) The reaction zone is enlarged, the gas distribution is uniform, and the heat utilization rate is high;
(4) The separation of slag and alloy is more thorough.
The 51000kVA electric furnace of Zhuangchuan Plant of Japan Heavy Chemical Industry Co., Ltd. uses the residue retention process to produce manganese-silicon alloy. The physical power consumption of the product is 4400kWh/t, and the recovery rate of manganese reaches 85%.
Second, the plasma furnace smelting manganese silicon alloy plasma smelting technology has shown many advantages in the production of ferroalloys. Due to the high plasma temperature, it can fully meet the requirements of the reduction temperature of most ferroalloy smelting processes, and has the characteristics of fast heating and high smelting temperature. In the carbothermal smelting reduction process, the oxides in the carbon and ore are well fused, and the reduction reaction rate is extremely fast. Plasma furnace can be directly used in any low-grade ore and powdered coal powder, and an electric power feed rate can be adjusted directly, balanced smelting reducing conditions, electrode consumption is not a problem.
The former Soviet Union Vlasov has experimentally confirmed that the smelting of manganese-silicon alloy in the plasma furnace can reduce the phosphorus content in the alloy, and the phosphorus into the alloy rate is 25% to 44%. The application of a long arc plasma furnace to develop high-phosphorus manganese ore and seabed manganese nodules has the potential for direct melting treatment. SKF Steel Company uses the Plasmasnelt method to smelt manganese-silicon alloy, and mixes manganese oxide ore powder, quartz powder, coal powder and flux into the reaction zone of the shaft furnace filled with coke , and can obtain manganese-silica alloy containing 18% of Si. The unit power consumption is 4500kWh/t.


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Luoyang Hong Xin Heavy Co., LTD. is located in Luoyang Xin'an Industrial Park, Luoyang Hongxin Heavy Machinery Co., Ltd is an enterprise featured with industrial designing, processing and manufacturing, which is qualified for import-export trade. Covering an area of 15,000 square meters and holding an annual production value of 80 million RMB, the company of 20 million RMB registered capital has total 100 staff members, among which there are 20 engineering technicians owning senior and medium professional titles and 40 intermediate and senior technicians capable of product designing and developing.
Hongxin is dedicated to produce reducers, hoists, crushers, Ball Grinding Mills and the equipments of screening, coal washing, metallurgy and cement, and replacement parts. Meanwhile, we provide the perform maintenance service for various series of equipments. There are 52 large-scale equipments applied into the manufacturing process, such as T200 CNC floor boring and milling machine, YK 73125 CNC molding gear grinding machine, YK322B CNC molding gear grinding machine, Y3200 gear hobbing machine, Y1600 CNC gear sharper, 4m vertical lathe, 6.3m CNC vertical lathe, T110 CNC boring machine, and 52 middle-sized productive and assistive equipments, which integrate strong manufacturing and processing capability with complete managing system of production and technology, quality management system and comprehensive testing measures.


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