Metallurgical Coke

Metallurgical coke is the collective name for blast furnace coke, casting coke, ferroalloy coke and coke used for non-ferrous metal smelting. It is an important raw material for steel production and is mainly used in blast furnace smelting. During the blast furnace smelting process, metallurgical coke not only participates in chemical reactions as a reducing agent, but also acts as a heating agent to provide heat. It also serves as the material column skeleton of the blast furnace to ensure the permeability of the blast furnace and smooth production.

• Efficient heat energy supply: Metallurgical coke can provide sufficient heat energy during the blast furnace smelting process to quickly heat up the iron ore, volatilize the volatile components in the ore, and generate reducing gases, thereby ensuring the efficient smelting process.
• Excellent reducing performance: Metallurgical coke is one of the solid fuels with the best reducing performance. Through the action of heating and acidic gas, metallurgical coke can promote the reduction of iron oxide in iron ore into metallic iron. This reduction performance is crucial for improving blast furnace production efficiency and product quality.
• Proper porosity: The porosity of metallurgical coke also has an important impact on blast furnace production. Appropriate porosity allows air and reducing gas to circulate freely, which is conducive to the reaction between iron ore and reducing gas and improves smelting efficiency. However, excessive porosity may also lead to the loss of cold air and unstable reducing gas, reduce the temperature at the top of the blast furnace, and affect the normal output of the taphole. Therefore, it is very important to control the porosity within an appropriate range.
• Stable blast furnace operation: Metallurgical coke can absorb and dilute other impurities such as water vapor, sulfur, chlorine, etc. to a limited extent, reducing the adverse impact on the blast furnace. In addition, metallurgical coke can also reduce the operating pressure of the blast furnace and improve the stability and reliability of the blast furnace operation.
• Excellent physical and mechanical properties: The physical properties of metallurgical coke, such as true density, apparent density, porosity, bulk density, specific heat capacity, thermal conductivity, etc., are closely related to its normal temperature mechanical strength, thermal strength and chemical properties. These excellent physical and mechanical properties ensure the stability and efficiency of metallurgical coke in the blast furnace smelting process.