A mineral liberation machine comprising vertical wet grinding mill (10) for grinding coarse material comprising a cylindrical housing (14) containing a rotatable shaft (15) creating an annular channel (17) with an input feed (16) for supplying coarse material and an output feed (18) for withdrawing ground product, in which the rotatable shaft (15) is equipped with a plurality of rotor discs (20) and the cylindrical housing (14) is equipped with one or more stators or stator discs (22), the discs (20, 22) on the rotatable shaft (15) and cylindrical housing (14) are interleaved such that the ratio of the height of the housing (14) to the diameter of the housing (14) is low with the diameter to height ratio being between 0.6-1.2.

A stirred ball mill may include a milling jar, at least three agitator shafts, and a drive. The milling jar may be arranged in a main direction and may have a milling chamber that is adapted to receive milling material and milling aid elements. Each of the at least three agitator shafts has a center axis that is arranged parallel to the main direction of the milling jar and is configured as a screw that is mounted fixedly to a frame in the milling jar such that each agitator shaft is rotatable about its center axis. The drive is configured to rotate the agitator shafts about their respective center axes without any contact between the agitator shafts. The center axes of the agitator shafts may be arranged as side edges of a prism.

A stirring device for stirring a particulate material and a grinding media in a grinding mill includes one or more protective elements that extend outwardly from a body to deflect said particulate material and said grinding media from the body.

A liquification system for an organic waste management system includes a hopper that is oriented vertically such that organic waste added to the hopper is biased by gravity toward a bottom end of the hopper; a fixed grinding plate disposed at the bottom end of the hopper and including grinding elements for grinding and liquefying organic waste; an agitator that is disposed within the hopper and is movable relative to the grinding plate in a first rotational direction that moves organic waste downward toward and against the grinding plate and in a second rotational direction that moves organic waste upward toward a top end of the hopper; a motor configured to selectively move the agitator in the first and second rotational directions under control of the controller; and an outlet through the bottom end of the hopper through which liquified organic waste drains from the hopper.

The current invention concerns a method for producing an aqueous dispersion suitable for being used as a flame retardant additive to wood composite panels. At least one pH-regulator, at least one inorganic thickener, and optionally at least one smoke suppressing agent is added to a premix while maintaining the actuation of wet-milling systems until the dispersion is obtained.

An agitator mill including a grinding chamber containing grinding bodies and an agitator shaft, which revolves therein around a horizontal axis and which supports several grinding disks, which are connected thereto and which are spaced apart from one another in the direction of the horizontal axis and which move the grinding bodies, wherein grinding disks preferably in each case have slits or apertures, wherein adjacent grinding disks are arranged on the agitator shaft so that the ratio of the grinding chamber length to the radial grinding chamber height is greater than or equal to 2:3, and that the radial distance between the outer jacket surface of the grinding disks and the inner wall of the grinding container limiting the grinding chamber is more than 20% of the radial grinding chamber height.

An agitator mill having a circular-cylindrical outer stator and an agitator having a circular-cylindrical rotor. The rotor is arranged within the outer stator, and a milling chamber between the rotor and the outer stator. In the milling chamber, a through-flow direction which extends from a feed channel to a discharge channel. Several rotor milling tools are attached to the rotor, wherein several outer-stator milling tools are attached to the outer stator. The outer-stator milling tools are arranged adjacent to and in the circumferential direction and form rows. These rows are arranged parallel to one another on the outer stator. On the side, facing away from the feed channel the outer-stator milling tools of at least one row have a greater radial length than the other outer-stator milling tools. The outer-stator milling tools of each row in the circumferential direction each have the same length.

A stirring device for stirring a particulate material and a grinding media in a grinding mill includes one or more protective elements that extend outwardly from a body to deflect the particulate material and the grinding media from the body to minimize contact of the mixture of the particulate material and the grinding media against the body and to promote contact between the particulate material and the grinding media.

A horizontal bead mill for dispersing secondary battery materials and a method for dispersing conductive materials using the horizontal bead mill for dispersing the secondary battery materials are provided. The horizontal bead mill includes a vessel including an inlet and an outlet configured to receive disperse media. The vessel is filled with beads. A rotor is rotated in the vessel to rotate the beads to disperse the disperse media. A driving unit rotates the rotor. An inner surface of a sidewall of the vessel is inclined at a predetermined angle for an axis of the rotor in a manner that an inner diameter of the vessel gradually decreases from an inlet side to an outlet side.

The present invention discloses a method and corresponding apparatus for separating lightweight materials from fabric pieces. The method comprises the steps of (a) introducing fabric pieces into a tumbling means having perforations for lightweight materials in the fabric pieces to be removed therethrough and coupled to a first source of negative pressure; (b) tumbling the fabric pieces in the tumbling means and simultaneously applying negative pressure from the first source of negative pressure to the tumbling means for removing lightweight particles detached from the tumbling fabric pieces from the tumbling means; (c) transporting the fabric pieces from the tumbling means to a top of a vertical separation chamber; and (d) applying forced air to the fabric pieces as the fabric pieces drop from the top to bottom of the vertical separation chamber by gravity for separating the lightweight materials from the fabric pieces, and simultaneously applying negative pressure from a second source of negative pressure to the vertical separation chamber to remove the lightweight materials separated from the fabric pieces from the vertical separation chamber; repeating this step until the fabric pieces are substantially cleared of any lightweight materials. The apparatus comprises a tumbling means and a vertical separation chamber.