A system processes seeds that are present in crop material. The system includes a first shearing surface, a second shearing surface arranged opposite the first shearing surface, and a clearance between the first shearing surface and the second shearing surface. The system passes crop material between the first and second shearing surfaces, where the crop material contacts the shearing surfaces as it passes through the shearing surfaces. Contact with the first and second shearing surfaces damages seeds that are present in the crop material. The system can be installed in an agricultural harvester to damage seeds that are present in crop residue to prevent the seeds from germinating after the crop residue is discharged from the agricultural harvester back into the field.

A screw shaft for a vertically stirred grinding mill is arranged so as to be accommodated within a grinding chamber of the grinding mill while extending in a longitudinal direction. The screw shaft comprises a central shaft and at least one screw flight surrounding the central shaft, and the central shaft comprises an outer shaft wall defining a cavity within the interior of the central shaft, which cavity is closed at least at one longitudinal end of the central shaft.

An infectious waste treatment system and method for decontaminating infectious waste employ a thermal friction extruder in which first and second interleaved counter-rotatable augers include reverse pitch flight sections that urge waste material in a direction opposite to that of the flow stream and into engagement with the back sides of friction plates. This increases the amount of heat generated by the extruder. The reverse pitch flight sections can be selectively replaced with forward pitch flight sections to control the amount of heat imparted to the waste material by the friction plates.

An infectious waste treatment system and method for decontaminating infectious waste employ a thermal friction extruder in which first and second interleaved counter-rotatable augers include reverse pitch flight sections that urge waste material in a direction opposite to that of the flow stream and into engagement with the back sides of friction plates. This increases the amount of heat generated by the extruder. The reverse pitch flight sections can be selectively replaced with forward pitch flight sections to control the amount of heat imparted to the waste material by the friction plates.

Generally, described herein are milling devices. A milling device (100) includes a rotatable screw (110) in an outer periphery of which spiral grooves (110a, 110b) are formed; a barrel (120) surrounding the portion of the screw (110) where the spiral grooves (110a, 110b) are formed and in an inner periphery of which a spiral groove (120a) is formed; a loader (130) for loading cereal grains into a space (135) between the screw (110) and barrel (120); a compressor (140) attached to a distal end of the barrel (120) and accumulating and pressurizing in a nearly airtight state the cereal grains ground in the space (135) and fed therein as the screw (110) rotates; and a discharge port (150) provided in a front face of the compressor (140) and blasting the cereal grains fed in and pressurized by way of rotation of the screw (110).

Generally, described herein are milling devices. A milling device (100) includes a rotatable screw (110) in an outer periphery of which spiral grooves (110a, 110b) are formed; a barrel (120) surrounding the portion of the screw (110) where the spiral grooves (110a, 110b) are formed and in an inner periphery of which a spiral groove (120a) is formed; a loader (130) for loading cereal grains into a space (135) between the screw (110) and barrel (120); a compressor (140) attached to a distal end of the barrel (120) and accumulating and pressurizing in a nearly airtight state the cereal grains ground in the space (135) and fed therein as the screw (110) rotates; and a discharge port (150) provided in a front face of the compressor (140) and blasting the cereal grains fed in and pressurized by way of rotation of the screw (110).

The inventive concept relates to a sludge drying apparatus, and more particularly to a sludge drying apparatus that may improve an efficiency of drying sludge that is sewage deposit residues and simplify a drying process.

The inventive concept relates to a sludge drying apparatus, and more particularly to a sludge drying apparatus that may improve an efficiency of drying sludge that is sewage deposit residues and simplify a drying process.

A cantilevered screw assembly comprising a speed reducer to facilitate rotation of a screw. The speed reducer may be connected to a torque arm that is adapted to control or limit undesired movement (e.g., wobbling, orbital movement, etc.) of the screw during operation. In effect, one exemplary embodiment of a speed reducer may essentially float on a pivoting torque arm (and the shaft of the screw) such that the torque arm is adapted to limit undesired movement of the speed reducer and screw. As a result, an exemplary embodiment may eliminate the need for alternative drive systems or other means to control undesired movement of the screw. An exemplary embodiment may be particularly useful for light or infrequent duty or other small-scale applications to reduce the likelihood of a breakage of a screw or another portion of a cantilevered screw assembly (e.g., the bearing(s) or bearing assembly, the gears, etc.).

A high-capacity juice extractor includes: a base; first and second supports which are spaced apart from each other in a longitudinal direction, and are provided on the base; a first extracting member which is a hollow cylinder opened toward the second support, is positioned between the first support and the second support, is rotatably supported on the first support by an outer casing support shaft, and is formed with a plurality of outlet ports; a second extracting member which is rotatably supported on the second support by an inner casing support shaft which is eccentric to the outer casing support shaft, and is positioned in the first extracting member to be eccentric to the first extracting member; and a driving member configured to drive at least one of the first extracting member and the second extracting member.