FREWITT FABRIQUE DE MACHINES S.A. Patent applications |
Patent application number | Title | Published |
20130119172 | MILLING DEVICE WITH ADJUSTABLE MILLING OPERATION - A milling device for performing a milling operation comprising a milling unit comprising a housing defining a milling chamber that can be filled with a material to be milled, a rotor assembly rotatably mounted in the housing, and a screen assembly for fractionating the material milled by the rotor assembly in movement and extending below the rotor assembly; and a drive unit adapted for controlling the movements of the rotor assembly relative to the screen assembly during the milling operation; wherein said drive unit is configured to produce an oscillating movement of the rotor assembly, the oscillating movement having an oscillation angle that can be varied during the milling operation when controlling the movements of the rotor assembly relative to the screen assembly. The milling device has improved milling efficiency. | 05-16-2013 |
20110168814 | BEAD MILL WITH SEPARATOR - A bead mill for performing wet comminuting comprising a stationary vessel having an internal wall and forming a milling chamber to be filled at least partly with milling bodies, raw particles and a carrying liquid to form a suspension within the milling chamber; an activator shaft, rotatable around an axis concentric with the stationary vessel and a rotating activator connected to the activator shaft, to comminute said raw particles to produce milled particles; characterized in that said bead mill further comprises a separator, containing a separator chamber disposed substantially vertically, a laminarization portion providing an upward laminar suspension flow within the separator chamber, to separate the milled particles from the milling beads and raw particles depending on the flow velocity of said upward laminar suspension flow. | 07-14-2011 |
20110114775 | CONICAL REDUCING APPARATUS - A crusher device for performing a crushing operation, comprising a hollow part of frusto-conical shape narrowing downwardly, a crusher spindle rotatably mounted coaxial with the hollow part, at least one crusher impeller rotatably mounted on the crusher spindle, and a crusher driving device for rotatably driving said at least one crusher impeller relative to said first hollow part; said at least one crusher impeller comprises a first crusher impeller containing a first crushing blade and a second crushing blade, each said first and second crushing blades extending radially from the crusher spindle and being fixedly connected to each other at their distal extremities by a blade member. The crusher device can be combined with a milling device providing an apparatus of compact size, adapted for reducing material from a size up to 36000 cm | 05-19-2011 |