Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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IMPACT OF THE PARAMETERS OF GRAB ON RESISTANCE TO THE INTRODUCTION IN THE FROZEN PYRITE FLOTATION

Surovegina T.U. 1 Nikandrov I.S. 1 Shurashov A.D. 1
1 Nizhny Novgorod State Technical University n.a. R. E. Alekseev
We are established the interrelation of the process of implementation of the cutting elements to grab the frozen pyrite flotation. We are established the dependence of the magnitude of penetration of cutting elements grab the numerical values of the resistivity of implementation. We are received data on changes in the compressive stress along the cutting element when embedded in the frozen layer of pyrite flotation. The relative convergence of these values with the values of compressive stresses to the frozen sand was set. We are established the dependence of the resistance forces the introduction of cutting edge length, the angle of taper cutting elements, the depth of penetration in the overloaded iron pyrite. We are received the regression model of the implementation process of cutting elements in the frozen pyrite flotation, which helps optimize the design and size of cutters. Were installed the optimal size of cutters grapple for handling frozen pyrites, and also the amount arrangement of cutting elements on the jaw grab, in which there is a more efficient destruction of the frozen crust material.