Abstract: These and other objects of the present invention are achieved by a comminution apparatus comprised of a housing member formed with co-planar circularly-shaped chambers in chordal juxtaposition to each other thereby forming a collision zone therebetween and wherein wheel members having radially disposed directional vanes are positioned for rotation in each cylindrically-shaped chamber and wherein an inlet fluid conduit or a slurry of particulate matter to be treated is in axial fluid communication with each wheel member and wherein each wheel member is caused to be rotated in a direction to accelerate the slurry towards the collision zone and to affect particle size reduction by particle collision and wherein an outlet conduit is in fluid communication with the collision zone for withdrawing a slurry of size reduced particles from the comminution apparatus.

Abstract: These and other objects of the present invention are achieved by a comminution apparatus comprised of a housing member formed with co-planar circularly-shaped chambers in chordal juxtapositioned to each other thereby forming a collision zone therebetween and wherein wheel members having radially disposed directional vanes are positioned for rotation in each cylindrically-shaped chamber and wherein an inlet fluid conduit or a slurry of particulate matter to be treated is in axial fluid communication with each wheel member and wherein each wheel member is caused to be rotated in a direction to accelerate the slurry towards the collision zone and to affect particle size reduction by particle collision and wherein an outlet conduit is in fluid communication with the collision zone for withdrawing a slurry of size reduced particles from the comminution apparatus.

Abstract: There is disclosed a pulverizing assembly having paired interconnecting cylindrical chambers wherein each chamber is provided with a rotatable shaft having a plurality of discs mounted thereon and wherein each disc is provided with a plurality of arcuately-shaped shoe members mounted in abutting relationship about the periphery of each disc member to facilitate the stage wise circulation of a slurry introduced into the assembly and to induce particle collision of the solids contained in the slurry so as to reduce the size of the particulate solids before exiting the assembly.

Abstract: There is disclosed a pulverizing apparatus having paired interconnecting cylindrical chambers wherein each chamber is provided with a rotatable shaft having a plurality of disc sets mounted thereon and wherein each disc set is provided with pivotally mounted thrust guides wherein thrust guide mounted on disc sets positioned in initial stages are provided with plate members to facilitate circulation of large particles. To facilitate stage-wise flow of solids/liquid, the chambers are provided with transversely-mounted weirs members.

Abstract: A pulverizing system which reduces the size of solid particulate material such as drill cuttings from a wellbore is disclosed. The pulverizing system includes a pair of interconnected cylindrical chambers with each chamber having a rotatable shaft with a plurality of disc sets mounted thereon. The shafts are aligned in parallel relation and operate in a counter rotating manner. Each disc set includes at least one pivotally mounted thrust guide in the form of a bar shaped member. In one embodiment, the thrust guides of the two shafts are arranged in an alternating, interdigitating pattern. The chambers are divided by transverse baffle walls into compartments, with each baffle wall having an opening therein for passage of the particulate material.