Metallurgical coke grains

1. Coke powder (coke): Coke is coal distilled by pressurized isolated air and high temperature.

Coke is mainly used in blast furnace ironmaking and blast furnace smelting for copper, lead, zinc, titanium, antimony, mercury and other non-ferrous metals, and plays the role of reducing agent, heating agent and column skeleton. Ironmaking blast furnaces use coke instead of charcoal, laying the foundation for the large-scale modern blast furnace.

In order to achieve better technical and economic indicators for blast furnace operation, coke for smelting (metallurgical coke) has appropriate chemical and physical properties, including the thermal properties in the smelting process. In addition to a large number of coke smelting and non-ferrous metal smelting (metallurgical coke), coke is also used in casting, chemical industry, calcium carbide and ferroalloys, and its quality requirements are different.

For example, coke for casting generally requires large particle size, low porosity, high fixed carbon and low sulfur content; Coke for chemical gasification is not strict in strength, but it requires good reactivity and high ash melting point; Coke for calcium carbide production requires maximum fixed carbon content.

2. Coke grain use: mainly used in the steel smelting industry. Graphite electrodes are also used for roasting and graphitization. It is mainly used as fuel and insulation material.

3. Coke powder: coke powder is a general term for the sieve under the specified particle size, and less than the coke below the specified particle size, the coke particles are coke in different particle size ranges, the function is sintering, used as coal.