Metallurgical coke is one of the most exported coke fuel in China.Metallurgical Coke due to its Low Reactivity, low Porosity, impact, compression resistance and wear resistance strong is widely used in Blast Furnace Iron-making;casting foundry industries ;copper, lead, zinc and other non-ferrous metal smelting field。
Semi coke is also called gas coke, which is Anthracite Coal in Yulin Shanxi province. It has the any characteristics of low Sulfur, low volatility and High Calorific Value. Therefore, it is mostly used as coke fuel, such as civil heating and industrial boiler fuel. Due to its low sulfur content and low combustion pollution, it has more advantages in scenes with higher environmental protection requirements. In addition, it can also be used in chemical industry (such as Production of semi coke Gas, coal tar, etc.), smelting industry (such as ferrosilicon, smelting reducing agent of metal magnesium ).
Metallurgical Coke focuses on the high-intensity demand of steel smelting, while Semi coke is biased fuels and low-end chemical/smelting field .
Semi-coke, as a new energy that can replace loose coal combustion, is literally akind of coal. After coal is processed, the smoking part is extracted and converted intooil and gas, and then it is made into chemical industry. product or fuel.
The uses and advantages of semi-coke in various aspects.
First in metallurgy:
1. Blast furnace injection. Compared with anthracite, the injection of medium andlow temperature semi-coke powder has no adverse effect on the blast furnace, and isbeneficial to desulfurization. As long as the proportion of semi-coke powder reaches10%, it can save more than 30% of the cost compared with the use of anthracite.
2. lron ore sintering. Compared with solid fuel (coke powder, coal), semi-coke hasmore suitable particle size, low sulfur content, reduces pollutant emissions, andincreases calorific value to improve efficiency.
3. Blast furnace with coke iron making. Small pieces of metallurgical coke used inblast furnace ironmaking before are sieved from metallurgical coke with a smallparticle size, and the quantity is limited. However, using semi-coke instead of smallpieces of metallurgical coke for blast furnace ironmaking is not only better in termsof indicators, but also greatly improved. Reduced production costs.
4. Carbon-containing pellet reducing agent. Compared with anthracite powder andearly reduction can be provided by low-quality heat sources, and thegarformance of semi-coke powder is better than that of coke powder and anthracite powder, which improves the reduction efficiency.Chemicalindustry:1.Semi-coke fixed bed gasification.