Nadutyy V.P., Chelyshkina V.V., Kornienko V.Ya. Development of technology and water-slurry scheme of extraction of amber

Details
Parent Category: Geo-Technical Mechanics, 2018
Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 140

Geoteh. meh. 2018, 140, 198-206

DOI: https://doi.org/10.15407/geotm2018.03.198

DEVELOPMENT OF TECHNOLOGY AND WATER-SLURRY SCHEME  OF EXTRACTION OF AMBER

1NadutyyV.P., 1ChelyshkinaV.V., 2KornienkoV.Ya.

1Institute of Geotechnical Mechanics named by N. Poljakov of NАS of Ukraine,

2National University of Water Resources and Nature Management

UDC532.5.011: 622.33: 622.752.3

Language: Russian

Abstract.

The extraction of amber in Ukraine today is carried out by a well-hydraulic method, the main disadvantages of which are low, up to 50%, extraction of amber and a significant violation of the environment.. A method has been developed, in which the extraction of amber-bearing rock is carried out by the method of layer-by-layer excavation and during its processing a significant increase in extraction of amber is achieved by extracting small fractions of size less than 5 mm, which are not extracted according to the existing technologies, as well as reducing losses in the removal of waste. One of the operations of the method is the separation of the rock in the vibro-classifier of complex action, which is a spiral classifier using vibration and bubbling of the pulp by air bubbles. Such a device can be used not only in a developed technological scheme, which is proposed in the way, but also in the form of a separate module, for example, for low-power fields, for difficult geological conditions. Then the vibro-classifier works in conjunction with the vibro-roar. For the specified operation is actually the definition of performance parameters. The article presents the results of the development of water-slurry operation scheme and analysis of density regimes for vibro-classification with the vibro-roar. The features of the technology in terms of the choice of fresh water supply points, reducing the circulating load and reducing the cost of additional water are established. n the range of rational values of the density of the suspension in the bath of vibro-classifier 1400-1600 g/l, for the density of 1600 g/l an example of calculation water-slurry amber extraction scheme is given.  It was found that at a capacity of 10 t/h, the flow of additional water is 2.24 m3/t, the circulating load is 0.5 t/h, amber extraction up to 85%. The program of calculation of indicators of the water-slurry scheme at variation of productivity and regime parameters is developed. The obtained results are recommended in the design and operation of the vibration classification unit for amber extraction, both in the developed technological scheme and in the form of a separate mobile module.

Keywords: amber, technology, vibro-classification, density of products.

References:

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About the authors:

Nadutyy Vladimir Petrovich, Doctor of Technical Sciences (D.Sc.), Professor, Head of Department of Mechanics of Mineral Processing Machines and Processes, M.C. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnipro, Ukraine,  This email address is being protected from spambots. You need JavaScript enabled to view it.

Chеlyshkina Valentina Vasilievna, Ph.D. (Tech.), Senior Researcher of Department of Mechanics of Mineral Processing Machines and Processes, M.S. Polyakov Institute of Geotechnical Mechanics under NAS of Ukraine (IGTM, NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Korniyenko Valeriy Yakovlevich, Doctor of Technical Sciences (D.Sc.), associate professor of National University of Water Resources and Environmental Management, Rivne, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.