Improvement of rock crushing quality based on load specifications set for electrically-driven hydraulic drilling rigs

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Antonenkov, D.V.^1 ; Manusov, V.Z.^1 ; Tsarev, R.Yu.^2

Novosibirsk State Technical University, 20, Karl Markx Ave., Novosibirsk

630073, Russia^1

Siberian Federal University, 79, Svobodny pr., Krasnoyarsk

660041, Russia^2

关键词: Activation systems;    Correlation ratio;    Drilling and blasting operations;    Drilling operation;    Electric energy consumption;    Energy characteristics;    Physical and mechanical properties;    Production factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012006/pdf
DOI  :  10.1088/1757-899X/560/1/012006

来源: IOP

【 摘 要 】

The analysis was completed on the main production factors which determine energy characteristics of an electrically-driven hydraulic roller-bit drilling rig during drilling operations under the condition of the Far North deposit. In addition, the correlation ratio between the parameters and electric energy consumption was analyzed for the DM-H drilling rig. The equations expressing the relation of the drilling rig load to the drilling speed have been identified. In order to improve the quality of rock crushing, we have modified the method of determining the properties and condition of the rock mass in order to correct the connection layout of the blasting circuit, the activation system, the change in the type of an explosive agent, as well as the composition and weight of the blasthole charge. The proposed approach allows reducing the cost of drilling and blasting operations by 6 % through the improvement in the accuracy of the designed physical and mechanical properties in terms of both the stratum depth and the strike of the mining block.