How to produce qualified ferronickel? You will get a whole picture in this article

1.Advanced equipment

The ferronickel production uses the sintering-mine furnace method, and the smelting furnace type uses a 25,500kVA closed mineral furnace. The use of large-capacity ore-heating furnaces facilitates automatic control and mechanized operations, and also facilitates the collection and treatment of flue gas generated during the melting process. The use of closed furnaces can effectively recover the gas generated during the smelting process and further reduce the smelting process. Energy consumption, improve the utilization of resources and energy, and basically avoid heat radiation and dust pollution at the furnace mouth, not only completely improve the operating environment of the furnace mouth, but also reduce the labor intensity of the furnace mouth operation.

2. Advanced technology

The sintering-ore heating furnace method is used to produce nickel iron, and the 25,500kVA closed ore heating furnace can effectively recover gas and use it for nickel ore drying and sintering. Laterite nickel ore is used as the raw material for ferronickel production. Because laterite nickel ore is of low grade and nickel does not exist as a separate mineral, physical beneficiation is not applicable. At present, the laterite nickel ore industry's treatment processes are mainly divided into two types: wet and fire. The wet process mainly includes reduction roasting-ammonia leaching process and high pressure acid leaching process; the fire process mainly includes sulfur smelting nickel sulfur process and reduction. Smelting process.

The advancement of the nickel-iron alloy process by reduction smelting using a mineral furnace can be reflected in the following aspects:

It is a mature and easy-to-control process in all laterite nickel ore treatment processes;

During the production process, the oxidized ore is directly treated. Compared with the traditional process, the production material and the process bring little sulfur, which is beneficial to reducing the emission of sulfur dioxide and to environmental protection;

The laterite nickel ore reduction is used to produce nickel-iron alloy as a stainless steel raw material. Nickel is enriched by electric furnace smelting with iron as the carrier, which is higher than the traditional process of collecting nickel with laterite nickel ore. This avoids the use of electrolytic nickel in the production of stainless steel. The waste of energy and resources caused by the iron separation and then fusion process is more reasonable and advantageous.