A lifter bar for a grinding mill includes an elongate structural support defining a longitudinal axis and extending from (i) a first end transverse to the longitudinal axis to (ii) a second end transverse to the longitudinal axis; a plurality of structural plates extending along the longitudinal axis in spaced relation, where each structural plate is transverse to the longitudinal axis, and defines opposed edges. The lifter bar may further include at least two protective plate portions, each protective plate portion being mounted over one set of the opposed edges.

A blade element (12) for a refiner (10, 11) for refining fibrous material has an inner edge (13) and an outer edge (14) and first blade bars (18) and first blade grooves (19) therebetween, the first blade bars and the first blade grooves extending toward the outer edge of the blade element. At top surfaces of the first blade bars there are second blade bars (20) and second blade grooves (21) therebetween. At least some of the second blade bars (20) lying on an outer end portion (12b) of the blade element (12) have a width which is larger than a width of second blade bars (20) lying on an inner end portion (12a) of the blade element (12) and/or is increasing in direction toward the outer edge (14) of the blade element (12).

A method includes one or more of the following five steps: (1) rough processing, (2) comminuting the material, (4) washing the material with acid, and (5) collecting/sorting the material to recover an aluminum product or a very pure aluminum product. A system may execute one or more of these steps to recover an aluminum product or a very pure aluminum product

A method includes one or more of the following five steps: (1) rough processing, (2) comminuting the material, (4) washing the material with acid, and (5) collecting/sorting the material to recover an aluminum product or a very pure aluminum product. A system may execute one or more of these steps to recover an aluminum product or a very pure aluminum product

A Concentric Blade Trimming System with Adjustable Blades. The System includes at least one pair of rotating drums within which are rotating cutting blade assemblies. The system allows the user to load untrimmed buds continuously, and to generate an efficient, continuous flow of trimmed buds as output. The cutting blade assemblies rotate within the rotating drums independently. The cutting blade assemblies also include apparatus that will automatically adjust the blade position relative to the interior walls of the drums so that the trimming process can continue without the need to shut down for blade adjustment. In an alternate version, the blades are flexible and their adjustment is conducted manually with only a short intermission in operation of the system.

An agitator shaft (1) for a grinding mill, including: an axle (2) intended to be driven in rotation, a succession of flat agitator elements (3) and tubular spacers (4) mounted in alternation on the axle and in a stack along the axle (2), end stops (5, 6), secured to the axle, that keep the stack of agitator elements and spacers under compression, characterized in that the tubular spacers (4) have orifices allowing the free circulation of material and fluids from the outside of the agitator shaft to the inside, and vice versa.

A bearing block assembly for a plant-trimming machine having a rotatable perforated tumbler, a rotatable reel and a bed bar assembly. The bearing block assembly comprises an outer bearing plate having a bearing-receiving bore for holding a reel bearing to rotatably support an end of the reel, and an inner bearing plate affixed to the outer bearing plate. The inner bearing plate has a pocket for receiving the bearing-receiving bore of the outer bearing plate, the pocket having a tolerance permitting the bearing-receiving bore to be set at a selected position within the pocket. The inner bearing plate also has a contact surface for engagement with the bed bar assembly and a bore for receiving a tumbler bearing for a rotatable tumbler support. The bearing block assembly has connectors for affixing the outer bearing plate to the inner bearing plate. The bearing block assembly sets the positions of the reel, bed knife and tumbler correctly during assembly of the plant-trimming machine, reducing the time and skill required for maintenance.

An apparatus for classifying fine particles in slurry provides a sharp particle size distribution with few mixed coarse particles and high classification accuracy.

The apparatus includes a rotor (15) including classification chambers (17) between blades (16) radially arranged at circumferentially regular intervals, and classifies particles so that a classified particle size is constant in an entire radial region from an outer periphery to an inner periphery of the classification chamber. The blade (16) of the rotor has a circumferential thickness t(d) increasing toward the outer periphery, and the classification chamber (17) has a width increasing toward the inner periphery.

A sonic reactor for transferring kinetic energy to a process fluid medium has a resonant element horizontally oriented and mounted to the two resonance units using two or more nodal support rings located at the nodal positions of the resonant element. The nodal support rings are adjustable in position relative to the resonant element and the resonance units to permit positioning of the rings directly at the nodal positions during operation. The sonic reactor has a grinding or mixing chamber mounted at one or both of the free ends of the resonant element. The sonic reactor is used for applications that include fly ash beneficiation, pulverization and dispersion; fine ore grinding; preparing ready mix cement formulations; oil sands cuttings for oil recovery; spilled oil, water and oily water storage treatment; organic and inorganic industrial wastewater treatment; environmental remediation of contaminated soils; sodium dispersion and destruction of PCBs; biosludge conditioning; cellulosic biofuels processing; lignin processing; dispersion and deagglomeration of pigments; and dye destruction.

A sonic reactor for transferring kinetic energy to a process fluid medium has a resonant element horizontally oriented and mounted to the two resonance units using two or more nodal support rings located at the nodal positions of the resonant element. The nodal support rings are adjustable in position relative to the resonant element and the resonance units to permit positioning of the rings directly at the nodal positions during operation. The sonic reactor has a grinding or mixing chamber mounted at one or both of the free ends of the resonant element. The sonic reactor is used for applications that include fly ash beneficiation, pulverization and dispersion; fine ore grinding; preparing ready mix cement formulations; oil sands cuttings for oil recovery; spilled oil, water and oily water storage treatment; organic and inorganic industrial wastewater treatment; environmental remediation of contaminated soils; sodium dispersion and destruction of PCBs; biosludge conditioning; cellulosic biofuels processing; lignin processing; dispersion and deagglomeration of pigments; and dye destruction.