Portable device for determining the strength properties of rocks
Background. For a reasonable choice from the list of currently produced mining machines in relation to specific mining and geological conditions, as well as for a reasonable choice of rational parameters of the operating modes of the working bodies and their drives, both in the design and improvement of existing machines, it is necessary to know the strength characteristics of the destroyed rock formations. Materials and/or methods. When developing a device for determining the potassium salt cutting resistance, in this paper, set the task of eliminating the shortcomings inherent in the DKC and SDM units, i.e. reducing the complexity of measurements by reducing the size and weight of the units. Theoretical and experimental studies carried out to assess the degree of the required reduction in the thickness and width of the cut by the cutter of the portable device. Set requirements for the design, engineered and manufactured the device for determining the resistance to cutting of the potassium salt. Results. To check the performance and efficiency of the developed design of the device, an experimental sample made and tested in the laboratory on the stand and in the mine conditions. Conclusion. Tests of the portable device in mine conditions at the third mine of “Beloruskaliy” showed high efficiency of application of this device.