Authors: O.S. Misnikov, A.V. Kuporova

Title of the article: Assessment of the impact of hydrophobically-modifying organosilicon additives on mass transfer and coagulation structure formation in peat systems

Year: 2024, Issue: 4, Pages: 47-65

Branch of knowledge: 2.8.8 Mining machines, geotechnology (engineering)

Index UDK: 552.577.082:[53+543]

DOI: 10.26730/2618-7434-2024-4-47-65

Abstract: The drying duration is the primary parameter determining the efficiency of peat production. Reducing dependence on unfavorable weather conditions in the field is possible by applying hydrophobic modification to the peat mass during its dispersion process prior to molding into peat briquettes. An evaluation of the impact of hydrophobic treatment with a water-ethylhydrosiloxane emulsion on the drying rate and the change in strength of peat briquettes from molding moisture content to equilibrium moisture content were carried out. Experiments determined that no negative effects on mass transfer processes occurred during the dewatering of modified peat systems. A theoretical justification was provided for the reduction in strength during the coagulation structure formation of molded peat samples. The magnitude of the strength reduction is not critical for peat production technologies. An additional positive effect of using the hydrophobic agent was identified – a reduction in the initial molding moisture content of peat briquettes. These studies form the scientific basis for increasing the efficiency of peat briquette production technologies in field conditions.

Key words: peat briquettes hydrophobization molding drying drying intensity mass transfer structure formation strength

Receiving date: 25.03.2024

Approval date: 11.11.2024

Publication date: 19.12.2024

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