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Information × Registration Number 0226U000073, (0125U002845) , R & D reports Title (ІІ-28-25) Justification of Process Parameters for the Integrated Resource- and Energy-Efficient Processing of Fine-Grained Mineral Raw Materials and Technogenic Waste in Upward Fluid Flows popup.stage_title Проведення експериментальних досліджень, встановлення закономірностей і визначення раціональних параметрів тонкого подрібнення на віброударному полічастотному млині і класифікації на вібраційному полічастотному грохоті мінеральної маси базальтів і відходів ГЗК. Head Kurilov Vladyslav S., Доктор філософії Registration Date 02-01-2026 Organization Institute of Geotechnical Mechanics named after MS Polyakova of the National Academy of Sciences of Ukraine popup.description1 Establishment of Patterns and Justification of Process Parameters for the Integrated Resource- and Energy-Efficient Processing of Mineral Raw Materials and Technogenic Waste (Basalt Deposits of Volyn Polissia and Iron Ore Beneficiation Waste from Kryvbas) in Upward Fluid Flows for the Development of Technical Proposals and Recommendations on the Production of Metal-Containing and Silicate Product Concentrates. popup.description2 The relevance of processing basalt mineral raw materials and technogenic waste from iron ore processing plants is обусловлена the need for rational use of natural resources, reduction of anthropogenic environmental impact, and improvement of efficiency in the production of building materials. This study investigates the processes of grinding and classification of basalts and beneficiation waste using a vibratory mill and a vibratory screen operating under vibro-impact polyfrequency excitation. It was established that the intensity of grinding significantly depends on the clearance in the unilateral elastic connections and on the degree of filling of the grinding chamber with grinding media. The maximum process efficiency is achieved at a chamber filling level of 0.76–0.92 and a clearance of 3.0 mm, which ensures the highest degree of grinding without excessive wear of equipment components. The studies showed that a decrease in the clearance to 1.5 mm leads to a significant reduction in grinding intensity, while an increase beyond the optimal value results in higher dynamic loads on structural elements. The obtained kinetic grinding curves indicate a bimodal particle size distribution, which is caused by different fracture mechanisms: fatigue failure for coarse particles and impact fracture for fine fractions. It was established that the vibro-impact mode contributes to an increased content of fractions smaller than 90 μm, which is important for further processing of the material. The efficiency of single-stage classification reaches 65–70% at a minimum clearance of 0.7 mm, while multi-stage classification allows achieving almost complete recovery of the undersize product. The obtained results confirm the feasibility of applying vibro-impact technologies for the preliminary grinding and classification of basalts and technogenic waste in order to ensure their further efficient processing. Product Description popup.authors Oleh A. Samodryha popup.nrat_date 2026-01-02 Close