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Why is the yield of coke dust high after wet quenching of coke produced in coke ovens? What are the common causes? There is a lot of coke dust; in just a few days, the coke quenching tank gets filled up, and the nozzles get clogged as well. How can the production of coke dust be reduced?
The high yield of coking dust can be caused by various factors, including: 1. Raw material issues: Poor quality of coal, such as excessive fineness, insufficient strength, and a low plasticity index, can lead to an increase in coking dust during the production process. 2. Coke oven operation issues: Problems such as excessive or insufficient coal loading, improper control of furnace temperature, and uneven coal packing density can affect the quality of coke and increase the yield of coke dust. 3. Coking quenching process: If the wet coking quenching process is not operated properly, such as when the pressure and temperature of the water flow are not controlled correctly, it can lead to the fragmentation of the coke blocks, resulting in more coke dust. 4. Loading and unloading transportation: During loading, unloading, and transportation, coke is subjected to excessive mechanical stress, which may also increase coke dust. To reduce the yield of coke dust, the following measures can be attempted: 1. Optimize the coal raw material by improving its strength and particle size to make it suitable for coke production. 2. Adjust and optimize the operating parameters of the coke oven to ensure uniform coal charging and appropriate oven temperature. 3. Optimize the wet quenching process by adjusting water temperature and pressure to reduce impact on the coke blocks. 4. Pay attention to minimizing the crushing and damage to coke during loading, unloading, and transportation. Through the above measures, the yield of coke dust can be reduced to a certain extent. .