Analyzing vibration effect on amber buoying up velocity

Abstract

Industrial use of hydromechanical method and equipment made it possible to represent quantitative assessment of parameters for efficient amber extraction from amber-bearing deposits. Mined-out deposits with non-commercial reserves, being technogenic ones, may become potential source of amber mining; however, it should involve technological development. Due to imperfection of available methods, losses of the mineral in pillars and mine dumps excess 50%. Taking into consideration positive vibration effect in the process of amber extraction from sandy deposits, special structure of vibration classifier has been designed making it possible to extract maximally even fine-size amber with the least technological losses. The studies have helped determine that the use of the vibration classifier to extract amber makes it possible to mine up to 95% of the mineral; in this context, both medium density and vibration effect amber-bearing sand dilution. Maximum velocity of amber buoying up achieves depending upon changes in water and air consumption for certain amber-bearing rock masses. Laboratory tests and full-scale experiments have determined that velocity values of amber buying up to the surface are 0.1 m/s – 0.21 m/s. The research has proved possibility of efficient use of integrated effect on rock mass of enhancing density of amber-bearing medium, vibration, and air flows in the form of bubbles. In this context, closed cycle on the liquid phase of the effect is implemented making it possible to substantiate the developed method for amber extraction.