Switching mechanism and optimisation research on a pressure-attitude adaptive adjusting coal seam water jet slotter

• Published in: International journal of mining science and technology Vol. 32; no. 6; pp. 1167 - 1179
• Main Authors: Lu, Yiyu, Zhang, Yangkai, Tang, Jiren, Yao, Qi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2022; Elsevier
• Subjects: Gas drainage; Gas drainage practice; Multi-index orthogonal test; Power bond diagram; Pressure-attitude adaptive adjustment; Water jet slotting; Gas drainage; Water jet slotting; Pressure-attitude adaptive adjustment; Gas drainage practice; Power bond diagram; Multi-index orthogonal test

To investigate the attitude-switching mechanisms of existing jet slotters, which integrate drilling, punching and slotting operations, and to improve its fracture ability, we used the power bond diagram theory to analyse the dynamic flow pressure, and force of slotters. A mathematical model was deve...