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Modern trends in designing mining machines dictate that their power consumption should be reduced. However, the end product quality is often not taken into account. The objective of the research is to improve the operation of a screw press of the milling and moulding machine used for producing sod peat in order to ensure the necessary quality of domestic fuel. To that end, the authors conducted an experiment simulating the sod peat production and determined the density and strength of the sod obtained during the improved machine operation. The experiments were carried out for the three pressure coefficients, further, the coefficient influence on the sod density and strength was evaluated. The sod peat density was assessed with modern electronic devices having a low error rate. The novelty of the research is to reconcile the issues of ensuring the minimum power consumption for producing domestic sod biofuel with its qualitative characteristics. The obtained indicators of the sod peat quality in terms of density and strength prove its improved moulding along with the minimum power consumption at a pressure coefficient of 2.22. Thus, the improved production of sod peat requires minimum power consumption, provides the required quality of the end sod and reduces the loss of feedstock due to crumbling.

Estimation of Rational Modes and Regimes of Production of Sod Peat with Milling-Forming Machine by Quality Indicators