New Application of Abrasive Slurry Jet in Coal Rocks Breaking and Prediction Model of Its Rock Breaking Ability

As a new tool of hard rock breaking, abrasive slurry jet (ASJ) is of great potential in tunneling and mining. Therefore, this paper presents a new system, shearer drum assisted by ASJ, to exploit thin seam with complex geology, in which coal rock will be broken by the coupled forces of ASJs and cutting picks. Then, an orthogonal experiment is carried out to study the effects of parameters (mass fraction of polymer additives, jet pressure, impact...