Pulinets I. Improving the furnace efficiency for backing coal-graphite products

Thesis is devoted to the creation of scientifically-justified simulation methods, development and improvements of processes and equipment for baking coal-graphite electrode products of different assortment. These methods provide the determination of rational constructional parameters and production schedules of the production furnace equipment, which are directed to saving resources and energy and environmental protection. The mathematical models of thermal and hydrodynamic state of the multichamber baking furnace is developed, taking into account combustion action of natural gas and radiation heat exchange in the furnace gases space. During the baking process of electrode products the model allows to obtain: data of physical fields during the change of constructional parameters; charging of furnace chamber; instantaneous and total power balance in different schedules of heating capacity introduce that it is necessary for improving existing and creating of new production schedules and equipment. The influence of technological parameters of the baking process of coal-graphite electrode products on thermal and hyd-rodynamic state of the multichamber furnaces is researched, using of developed numerical models. On the basis of the made numerical experiments and experimental researches the scientific and reasonable production schedules of baking coal-graphite electrode products in the multichamber baking furnaces are developed, which provide the resource and energy-saving and requested quality of final product.