Özet:

The object of research is the technology and technical means for storing the ore processing waste in the underground produced space and tailings with the addition of hardener. One of the most problematic places is the technology of storage of ore processing waste, according to which the tails of the hydrometallurgical plant (HMP) are sent along the pipeline to the tailings in the form of sludge with a ratio by weight of «solid – liquid»: 1:2. Liquid phase of the sludge settling and illumination in the tailing is returned to the technological cycle at the HMP. This storage technology has several disadvantages: high one-time capital costs for the construction of a tailing facility at full design capacity; migration of harmful chemicals into groundwater is likely if the shield screens of the base or tailings are damaged. The data from literature sources and patent documentation in the field of justification of storage parameters, laboratory and production experiments, physical modeling and selection of compositions of solidifying mixtures are used. Analytical researches, comparative analysis of theoretical and practical results by standard and new methods with the participation of the authors are performed. The mechanism of influence of migratory dust and water flows from the array of tailings dams facilities and metallurgical redistribution of metal ores is obtained and formulated. It has been shown that dust migration stops when the fixed compression strength (1.0–1.5)·105 MPa and the airflow velocity of 15 m/s are reached. The possibility of using curing mixtures with the use as a binder of related production is established. The optimal composition of ingredients per 1 m3 of the mixture is proposed: – tails of a hydro-metallurgical plant of 1350–1500 kg; – binder (cement) – 50–70 kg; – mixing water – 350 l. The proposed technology of storage of waste ore in the underground produced space and tailings dams with the addition of hardener allows the production capacity of the enterprise 1500 thousand tons/year 50–55 % of the tails used to book the produced space (830 thousand tons/year). And the rest connected with cementing material is stored in a storage (670 thousand tons/year). This ensures that the tailings of the entire existing area of the tailings mirror can be filled to a height of 10 m. Author Biographies Vasil Lyashenko, State Enterprise «Ukrainian Research and Design Institute of Industrial Technology», 37, Svobody str., Zhovti Vody, Dnepropetrovsk region, Ukraine, 52204 PhD, Senior Researcher, Head of Department Research Department

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