Embodiments of the present disclosure include a screen basket apparatus includes a substantially vertical cylindrical frame and a synthetic screening surface secured to the frame. The synthetic screening surface may be configured to separate carbon or resin from a slurry of a carbon-in-leach, carbon-in-pulp, resin-in-leach, or resin-in-pulp material as fluid flows from outside to inside the screen basket apparatus such that carbon or resin is retained on an external surface of the synthetic screening surface. The cylindrical frame may be a grid frame and the synthetic screening surface may include a plurality of replaceable screen assemblies attached to the grid frame. The grid frame may include a plurality of openings and each of the plurality of openings is configured to receive a respective one of the plurality of replaceable screen assemblies. The synthetic screening surface may include injected molded thermoplastics, thermoset polyurethanes, and/or other polymeric materials.

A trommel assembly includes a trommel frame, a plurality of screen panels mounted to the trommel frame to define a material processing channel configured for receipt of screening material, and a gate assembly mounted to the plurality of screen panels. The gate assembly extends into the material processing channel along a radial direction and includes a plurality of circumferential dams that extend substantially along a circumferential direction and are spaced apart along an axial direction to define a plurality of screening stages. The gate assembly further includes a plurality of transfer gates extending at a transfer angle relative to the circumferential direction between adjacent dams of the plurality of circumferential dams, wherein the plurality of transfer gates connect the plurality of screening stages such that rotating the trommel assembly advances the screening material through the material processing channel.

Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be formed of a single injection molded piece integrally formed by injection molding one of a polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across the exterior of the grid frame, which reduces blinding and is resistant to wear and tear.

Thermoplastic polyurethane (TPU) compositions, methods for producing TPU compositions, methods of using TPU compositions, and apparatuses produced therefrom are disclosed. Disclosed TPU compositions include a thermoplastic polyurethane polymer, a heat stabilizer, a flow agent, and a filler material. The filler may be a glass fiber. Disclosed TPU compositions have improved thermal stability and improved flow properties suitable for injection molding of articles of manufacture having a large plurality of fine openings or pores. Articles produced from the composition have superior thermal stability, abrasion resistance, and chemical resistance. Example articles include screening members for vibratory screening machines.

A material handling machine includes a substantially cylindrical tub having an inlet and outlet where the tub includes a ring configured internally to the tub. A hopper is used for directing materials entering the inlet and a grate covers the inlet for controlling the amount of material into the tub. An impeller is rotated using a motor for processing material singulated by the impeller and a basket sifts material from the impeller. The impeller is supported by the main spindle such that the at least one impeller and basket are interchangeable depending on the type of material.

A device and method for separating solid material with thorough gentle precision processing in order to maintain the integrity of the desired portion of the solid material, employs a separating apparatus including two or more vertically spaced barrels, each of which rotates within a respective saddle. After solid material is introduced into one of the barrels, the barrel is rotated, and the solid material is rotationally tumbled and axially propagated through the barrel. As the solid material moves through the barrel, portions of the solid material are separated therefrom by various means including collision, vibration, grating or cutting.

A protective cover (10) for removably affixing to a trommel frame section (1) of a trommel device may be configured to protect portions of the trommel frame section (1) from abrasion and wear from screened material (30) being processed by the trommel device. The protective cover (10) may comprise a body (19); fixation members (11) extending from the body (19); one or more locking features (15) provided to the fixation members (11) for securing the body (19) to the trommel frame section (1); and, an opening (17) provided between the fixation members (11). A trommel device or trommel frame section (1)

Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be an injection molded thermoplastic polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across an exterior portion of the grid frame.

Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be formed of a single injection molded piece integrally formed by injection molding one of a polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across the exterior of the grid frame, which reduces blinding and is resistant to wear and tear.

The present disclosure relates to an auger assembly that cleans the crop being conveyed during the auguring process. The assembly comprises a number of variously gauged rapidly removable screens that can be selected and easily installed in the assembly depending on the crop being conveyed, and the type of foreign material that is to be removed. A second auger then propels the foreign material to a waste collection port.