Analysis of the influence of heat engineering characteristics of raw materials on physical and mechanical properties of combined briquette

Relevance. The paper presents the results of research to determine the influence of such raw material parameters as humidity and temperature in the pressing process on the physical and mechanical properties of the obtained briquette, as well as the analysis of furnaces of different designs during combustion of the obtained composite briquette consisting of solid wood waste and laminated paper waste containing synthetic polymers. The results of these studies will allow to use the obtained composite material with maximum energy efficiency when burning it in industrial power plants.

The goal of the research is to determine the effect of different values of humidity and temperature, in the process of pressing raw materials, on the final physical and mechanical parameters of the combined briquette, such as density and strength. Analyzing different furnace designs when burning the resulting fuel briquette, as well as analyzing the magnitude of compression of the briquette at different compositions of raw materials.

Methods. In this paper were used methods: analysis of thermoplasticity and moisture plasticity of polymer components of the raw materials used in the process of briquette formation with different compositions of raw materials; normative method of calculation of boiler units with different designs of furnace devices to determine the basic parameters of the boiler at combustion of combined briquette; construction of the dependence of the briquette compression value in the process of pressing on humidity and temperature with different compositions of raw materials.

Results. The paper presents the results of: physical and mechanical parameters of the briquette at given parameters of humidity and temperature; basic values of thermal calculation of the boiler unit with different designs of furnaces; the amount of compression of raw materials in the mold depending on the parameters of humidity and temperature, as well as, from the composition of raw materials.

Conclusion. The obtained research results will allow to use combined briquettes from wood waste and laminated paper waste, with maximum energy, economic and environmental efficiency in their combustion in boiler plants. The obtained combined briquettes have high physical and mechanical parameters under certain conditions and compositions of raw materials, which facilitates the process of transportation and storage of fuel.

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