A refiner segment for a refiner for defibrating has a refining surface comprising a group of first bars and second bars, each having a first end directed in the direction of an inlet zone and a second end directed in the direction of a refining zone, where the second ends of the first bars are interlaced with the first ends of the second bars to form first grooves between the first bars, and second grooves between the second bars. The second ends of the first bars have a guiding surface decreasing from an upper surface of the first bars down towards the bottom of the second grooves, and the first ends of the second bars have a guiding surface increasing from the bottom of the first grooves up to a top of the second bars, such that the guiding surfaces form an equalization groove.

A refiner segment for a refiner for defibrating has a refining surface comprising a group of first bars and second bars, each having a first end directed in the direction of an inlet zone and a second end directed in the direction of a refining zone, where the second ends of the first bars are interlaced with the first ends of the second bars to form first grooves between the first bars, and second grooves between the second bars. The second ends of the first bars have a guiding surface decreasing from an upper surface of the first bars down towards the bottom of the second grooves, and the first ends of the second bars have a guiding surface increasing from the bottom of the first grooves up to a top of the second bars, such that the guiding surfaces form an equalization groove.

Disclosed is an assembly for use in an herb vaporizer. The assembly includes a casing having at least one casing air passageway. The assembly also includes a first grinding element partially defining a grinding chamber and a second grinding element, opposed to said first grinding element, further defining the grinding chamber and rotatably mounted such that contents of the grinding chamber are agitated by rotation of the second grinding element. The assembly also includes a heater within the casing operatively associated with the grinding chamber, and being electrically coupled to a threaded connector providing an electric connection from a battery unit. The threaded connector projects from the casing for mating with an external battery unit.

The present disclosure relates to the treatment of streams derived from construction and/or demolition (C&D) debris, such as C&D fines streams, asphalt shingles, drywall, or wood. The process can include a kinetic pulverization stage through a kinetic pulverizer where the frangible materials are size-reduced and the ductile materials are liberated and remain as an oversized fraction. The feedstock can include infrangible materials that also remains as an oversized fraction. The pulverized material is then subjected to a separation stage, which may include mechanical and/or magnetic screening, to separate the oversized material comprising the ductile material, and optionally larger particles of the infrangible material, from the size-reduced material comprising the frangible material, and optionally small particles of infrangible material.

The present disclosure relates to the treatment of streams derived from construction and/or demolition (C&D) debris, such as C&D fines streams, asphalt shingles, drywall, or wood. The process can include a kinetic pulverization stage through a kinetic pulverizer where the frangible materials are size-reduced and the ductile materials are liberated and remain as an oversized fraction. The feedstock can include infrangible materials that also remains as an oversized fraction. The pulverized material is then subjected to a separation stage, which may include mechanical and/or magnetic screening, to separate the oversized material comprising the ductile material, and optionally larger particles of the infrangible material, from the size-reduced material comprising the frangible material, and optionally small particles of infrangible material.

Disclosed is a three-stage millstone including an upper stone having a grain inlet and an inlet path, a middle stone disposed under the upper stone for causing grain, introduced through the inlet path, to move to an edge thereof and grinding the grain using compressive force between the upper and middle stones, a lower stone disposed under the middle stone for secondarily grinding the grain using compressive force between the middle and lower stones, the upper surface of the lower stone being wider than the lower surface of the middle stone and being inclined downward to allow the ground grain to inwardly move from the edge of the middle stone to the center of the lower stone, the lower stone having a grain outlet passage, a rotation device for enabling rotation of the middle stone, other than the upper and lower stones, and an actuator for rotating the middle stone.

Disclosed is a three-stage millstone including an upper stone having a grain inlet and an inlet path, a middle stone disposed under the upper stone for causing grain, introduced through the inlet path, to move to an edge thereof and grinding the grain using compressive force between the upper and middle stones, a lower stone disposed under the middle stone for secondarily grinding the grain using compressive force between the middle and lower stones, the upper surface of the lower stone being wider than the lower surface of the middle stone and being inclined downward to allow the ground grain to inwardly move from the edge of the middle stone to the center of the lower stone, the lower stone having a grain outlet passage, a rotation device for enabling rotation of the middle stone, other than the upper and lower stones, and an actuator for rotating the middle stone.

A process for separating carpet fibers from carpet backing uses a grinder of the type having a rotor with a plurality of vertically spaced cutter discs and a fan disc below the cutter discs. Sections of carpet are fed into the grinder which grinds the carpet, separating the fibers from the backing and breaking the backing into relatively small particles. The grinder is connected with a series of ginning equipment for removing the ground backing from the fibers.

A process for separating carpet fibers from carpet backing uses a grinder of the type having a rotor with a plurality of vertically spaced cutter discs and a fan disc below the cutter discs. Sections of carpet are fed into the grinder which grinds the carpet, separating the fibers from the backing and breaking the backing into relatively small particles. The grinder is connected with a series of ginning equipment for removing the ground backing from the fibers.

A refiner is disclosed comprising relatively rotatable inner and outer conical refining blades. The refining blades are coaxially arranged around a symmetry axis and are provided with first bars and second bars, respectively, for the grinding of fibrous material. The inner conical refining blade or any of the first bars of the inner conical refining blade extend further along the symmetry axis, in the direction of the tapering of the inner and outer conical refining blades, than the outer conical refining blade or any of the second bars of the counter conical refining blade.