Exemplary embodiments include improved systems and methods for sorting and metering materials to be recycled at a material recovery facility. Systems and methods for the accurate and automated sorting and metering of recoverable materials may include a bunker with an integral conveyor adapted to meter presorted materials such that predetermined amounts of the materials may be delivered to a baler for baling and sale. Exemplary systems may include an auger screw type conveyor sized and shaped to deliver the materials to, for example, a baling system. The systems may also include a crusher for reducing the volume of the materials prior to metering from the bunker; by reducing the volume of the materials in the bunker, a baler may operate more efficiently, increasing output from the facility.

Pre-shredded, solid plastic and/or rubber waste is fed in to a melting unit (4), of two sequentially linked melting units (41,42), where the first melting unit (41) is constructed with an extruder axis (39) with a thread interruption (44), which shall cause solidity of the melted feedstock and formation of a compaction and a plug, thereby forcing the gases and steams to escape from the feedstock and to prevent back-flow of gases, via an interconnecting pipeline (28) a second melting unit (42) is mounted, from where the heated high pressure melted feedstock flows into the thermocatalytic reactor (7), where thermal decomposition of the hydrocarbon polymers in the feedstock takes place, then is followed by the collection and storage of the liquid product oil and gaseous end products.

Pre-shredded, solid plastic and/or rubber waste is fed in to a melting unit (4), of two sequentially linked melting units (41,42), where the first melting unit (41) is constructed with an extruder axis (39) with a thread interruption (44), which shall cause solidity of the melted feedstock and formation of a compaction and a plug, thereby forcing the gases and steams to escape from the feedstock and to prevent back-flow of gases, via an interconnecting pipeline (28) a second melting unit (42) is mounted, from where the heated high pressure melted feedstock flows into the thermocatalytic reactor (7), where thermal decomposition of the hydrocarbon polymers in the feedstock takes place, then is followed by the collection and storage of the liquid product oil and gaseous end products.

The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

A screw conveyor system for a compaction apparatus can be adapted on a material transportation vehicle. The compaction apparatus is characterized by having a hopper receiving materials and a container storing the materials in a compacted fashion. The compaction apparatus comprises a screw conveyor system that can include a screw conveying the materials from the hopper to the container, a passageway structure traversed by the screw, located between the hopper and the container and allowing passage of the materials. The passageway structure can define an asymmetrical aperture and the passageway structure can include a main passageway and a by-pass passageway allowing passage of materials from the hopper to the container.

A barrel block for a twin-screw extruder constitutes a barrel including a cylinder and has joints at both ends. A first joint includes a first inner joint face on a peripheral edge of a first hole of an insertion hole for screws, and includes a first flank face and a first outer joint face on an outer periphery of the first inner joint face. The first outer joint face is located in the outer periphery of a plurality of first bolt holes. The first outer joint face is more recessed toward a second block end face than the first inner joint face.

A system (100) and method to control rheology of ceramic pre-cursor batch during extrusion is described herein. An extrusion system (100) comprises an extruder (122) with an input port (144) configured to feed ceramic pre-cursor batch into a first section (120) of an extruder barrel and a discharge port configured to extrude a ceramic pre-cursor extrudate (172) out of the extruder barrel downstream of the input port (144). A liquid injector (210) is configured to inject liquid into the ceramic pre-cursor batch. A sensor (106) is configured to detect a rheology characteristic of the ceramic pre-cursor batch. A controller (108) is configured (i) to receive the rheology characteristic from the sensor (106), (ii) compare the rheology characteristic to a predetermined rheology value of the ceramic pre-cursor batch, and (iii) generate a command based on the comparison. A liquid regulator (110) is configured to receive the command and adjust liquid flow to the liquid injector (210) based on the command.

The method for producing carbon nanotube pellets according to the present invention can reduce the particle size of the carbon nanotubes contained in the pellet by a repetitive extrusion process to produce pellets having improved dispersion characteristics in a solvent. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

The method for producing carbon nanotube pellets according to the present invention can reduce the particle size of the carbon nanotubes contained in the pellet by a repetitive extrusion process to produce pellets having improved dispersion characteristics in a solvent. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.