Method for the comminution of particulate solid materials

摘要: A process and apparatus for grinding particulate material to micron or fractional size. high velocity stream of pressure fluid is passed through a multistage Venturi system into which the fed result in self-attrition particles by impact. Fluid entrained are injected mill chamber wherein different sizes separated classified. Mill preferably shaped provide an endless path. Patterns hydrodynamic flow vortex motion produced so that solid particle makes many collisions, these conditions being effected dispositions nozzles, design boundary surfaces regulation temperature oncoming fluid. Provision made recycling oversized either aforementioned similar but separate regrinding reintroduction chamber.