EN
Much research has assessed the validity of using partially briquetted coal in the coking process. However, the results are not being published. According to the producers, the use of lump coal in a mixture of coal with a low degree of metamorphism improves coke quality and provides consistency to its parameters. The Polish Department of Manufacturing Systems has undertaken a study to determine the possibility of briquetting fine coke in roll presses without a binding component. Mentioned studies were conducted on a laboratory roll press type LPW 450 equipped with the original asymmetrical layout compacting system. In order to identify merged coal, basic physical and chemical properties were determined. Keeping in mind the value of environmental hazards, the possibility of applying electrostatic precipitators to capture ash from combustion of coal chip, based on past experience in this field, was evaluated [1-7]. This paper presents some of the results of mentioned considerations.