The analysis of research of wood processing wastes briquetting by using hydraulic press equipment

The method of utilization of sawdust and other wastes of wood processing through the production of fuel briquettes is increasingly used in the industry. Diversification of timber processing products is a priority for the development of the industry, along with improving the energy efficiency of production. There are few articles about briquetting, the only monograph by N. Ah. Modin was published in 1971. It is obvious that the industry has taken a step forward during this time, new models of high - performance presses, mainly hydraulic, have appeared, and socio-economic conditions have changed. Thus, further research in the field of briquetting of wood processing waste is relevant both for the theory and practice of logging. Mathematical models describing formation of pellets from sawdust in open-type dies are known; the questions of assessing the deformative properties of the pressed wood mass are worked out. The results of theoretical and experimental studies on vibro-shock compaction of crushed bark and sawdust are known. The results of a number of experimental studies on briquetting sawdust and bark using stamp presses with an open matrix are published. The issues of compaction of crushed wood materials in a closed matrix have been worked out partially. Mathematical models of pressing wood mass using hydraulic pressing equipment should be developed and investigated to clarify the ideas about the deformative properties of crushed wood and bark and to develop the theory of compaction of wood materials. This will allow in practice select the rational parameters of the briquetting process in a closed matrix, taking into account the properties of raw materials.