Abstract:
A flywheel and paddle assembly for a chipping or shredding apparatus, including a wood chipper, a brush chipper, and a leaf shredder. The assembly has a flywheel attached coaxially to a drive shaft. The flywheel has at least one aperture extending from the front side to the back side, and carries at least one knife adjacent to the at least one aperture. The knife presents a knife edge on the front side of the flywheel. A paddle is rotatably mounted coaxially to the drive shaft adjacent to the back side of the flywheel. The paddle is configured to rotate on the drive shaft independently of the flywheel. A chipping or shredding apparatus incorporating the aforesaid flywheel and paddle assembly is also disclosed.
Abstract:
[00105] A system for preparing smokeable material comprising a wall providing an upper chamber and a lower chamber with a grate between the chambers. Feed smokeable material in the upper chamber has its size reduced with a size reducer a sufficient amount such that it can pass through the grate into the lower chamber as fill smokeable material. There is an opening in the lower chamber for fill smokeable material to pass out of the lower chamber. The fill smokeable material can then be used to fill a wrapper or a smokeable device.
Abstract:
An organic thickening and suspension agent is produced as follows: a suspension of organic fibre materials with fibrillated fibre structure is repeatedly ground under conditions of raised temperature and pressure in a disk mill with grinding disks (11, 12) provided with hard mineral granules.
Abstract:
The invention relates to a refiner for refining of material such as wood chips or the like, which comprises: a first and a second opposed and with respect to each other rotatable rotors (11, 12), which are provided with refining elements (15, 16) and which between themselves define a refiner gap with a refining zone (17) for processing of the material, wherein the first rotor (11) comprises openings (19) having an inlet side and an outlet side (19a, 19b) intended to let the material through, and wherein the outlet side is adjacent to the feeding zone (18) of the refiner gap; a feeding chamber (22) to which the material is arranged to be fed, and which is adjacent to the inlet side of the openings (19) of the rotor; a coaxial feeder (23) having a screw body (24) and helix shaped threads (25), which coaxial feeder (23) is arranged inside the feeding chamber (22) in order to rotate together with the first rotor (11) and to carry the material towards the openings (19) of the rotor. The threads (25) of the coaxial feeder (23) comprise an essentially straight part (25a) that extends essentially perpendicular from the screw body (24) and that in operation is intended to carry the material in the longitudinal direction towards the refiner gap, wherein the straight part (25a) passes into a top (25b) that is intended to limit the motion of the material radially.
Abstract:
Rapidly-running macerating machines are conventionally driven mechanically by a diesel engine. A mechanical drive gives rise to problems of spatial arrangement and positioning for the cutting gear. Furthermore mechanical drives have undefined start-up and braking properties and power characteristics incompatible with cutting gears. A hydraulic drive is thus disclosed, comprising a closed hydraulic circuit with an adjustable hydraulic pump (1), a control unit (19) and a hydraulic motor (2). The control unit (19) comprises a 4/3- way valve (20) and an electronic controller (21), operating the proportional valve. The electronic controller (21) may have the adjustment characteristics thereof programmed and is operated by a start/stop device and a linear pressure sensor (22) situated in the flow line (6). The hydraulic motor (2) is by-passed by a pressure line (25) in which a brake valve (27) is arranged. Also disclosed is a corresponding hydraulic drive in an open circuit with a constant pump (1') or an adjustable pump (1'').
Abstract:
The invention pertains to equipment and methods in which the rotatable drive member of a variable speed motor, such as a switched reluctance motor, carries a rotatable pulp processing element (10). Magnetic bearings (22, 24) levitatingly support both the rotatable drive member (15) and associated rotatable pulp processing element (41) and control axial and radial positionning thereof relative to the axis of rotation of the drive member.