Influence of Technological Parameters on the Physical-Mechanical Characteristics of Wood-Coal Fuel Briquettes

Despite the ongoing state policy in the field of energy conservation and the use of renewable energy sources, the actuality and availability of raw materials, the fuel briquettes are not manufactured on the territory of the Republic of Sakha (Yakutia). The main obstacle in maintaining briquette production is the high cost of oil binders. The most expedient way for briquetting brown coal in conditions of the Republic of Sakha (Yakutia) is the use of alternative types of binder and new less expensive methods of briquetting based on a wood waste from logging. In the present paper the results of physical-mechanical studies of wood-coal fuel briquettes are demonstrated. The influence of the technological parameters, such as the temperature, moisture and sawdust content, on the compressive strength of the samples is shown. The deformation characteristics of the samples are calculated, which indicate the character of changes in plastic and elastic deformations when the pressing temperature and the sawdust content are increased. Structural studies performed on a scanning electron microscope are presented.