The present invention relates to a grinding media mill (2) for obtaining polyisoprene and/or other apolar materials from raw plant materials, having a drum (4) which is peripherally closed and has a milling chamber (10) that is peripherally closed and located in the interior of the drum (4). The aim of the invention is to create a grinding media mill that enables careful processing of the raw plant materials, on the one hand, but is also variable in processing intensity and throughput time, on the other hand. This aim is achieved, according to the invention, in that the milling chamber (10) is divided into a plurality of sections along the rotation axis (6) by partitions arranged crosswise to the rotation axis (6), the partitions have passage openings through which the ground product mixture can pass from one section into an adjacent section, wherein the passage openings are sized such that they retain the grinding media located in a section, and the motor (8) is provided with an apparatus (38) by means of which the rotational speed of the drum (4) is variably adjustable.

The present invention relates to a dry process for isolating clean glandular trichomes from a trichome bearing plant material, wherein the trichome bearing plant material is frozen at −20° C. and subject to shattering and softening sequence.

A milling assembly for a ball mill has a housing for refining and separating a substrate and a collection vessel for retaining the refined substrate. The housing includes, in vertical order, a lid, at least one milling vessel for receiving milling balls, and a screen with a refining section and apertures. The collection vessel is releasably mounted to a bottom end of the housing. The housing has an orifice arranged therein. The orifice has a valve for selectively allowing gas to pass between an outside and an inside of the housing in an open position of the valve and to seal the housing against the outside in a closed position of the valve. The milling vessel includes a taper for receiving a sealing screw.

A milling assembly for a ball mill has a housing for refining and separating a substrate and a collection vessel for retaining the refined substrate. The housing includes, in vertical order, a lid, at least one milling vessel for receiving milling balls, and a screen with a refining section and apertures. The collection vessel is releasably mounted to a bottom end of the housing. The housing has an orifice arranged therein. The orifice has a valve for selectively allowing gas to pass between an outside and an inside of the housing in an open position of the valve and to seal the housing against the outside in a closed position of the valve. The milling vessel includes a taper for receiving a sealing screw.

A method of monitoring both liner wear and charge impact in an industrial mill uses a sensor mounted on an elongated element deployed through a shell into a liner of the mill. The elongated element wears at a same rate as the liner under conditions within the shell. Liner wear is related to a reduction in length of the elongated element as measured by travel time of an ultrasound wave, while location and strength of charge impact is related to change in amplitude of vibrations caused by the charge impact. Liner wear measurement can be improved by using shear ultrasound waves instead of conventional longitudinal ultrasound waves. A mill monitoring apparatus has a means for acquiring ultrasonic waves and audible sound waves using the same digitizer; a means for determining the angular position of the monitoring apparatus; and a means for supplying electric power to the apparatus.

The present invention provides an apparatus for suspending and guiding at least one tool or work platform externally about a grinding mill, the apparatus including (a) a fixed track suspended above the grinding mill and extending about an outer periphery thereof in a plane substantially parallel to a surrounding floor of the mill, and, (b) at least one carriage assembly mounted to the track for suspending and guiding the at least one tool or work platform, the at least one carriage assembly configured to provide the at least one tool or work platform with at least two degrees of freedom, and wherein a first degree of freedom is linear movement along a first axis orthogonal to the surrounding floor of the mill.

The present invention provides an apparatus for suspending and guiding at least one tool or work platform externally about a grinding mill, the apparatus including (a) a fixed track suspended above the grinding mill and extending about an outer periphery thereof in a plane substantially parallel to a surrounding floor of the mill, and, (b) at least one carriage assembly mounted to the track for suspending and guiding the at least one tool or work platform, the at least one carriage assembly configured to provide the at least one tool or work platform with at least two degrees of freedom, and wherein a first degree of freedom is linear movement along a first axis orthogonal to the surrounding floor of the mill.

The invention relates to the field of operating, monitoring and controlling mills of the mining industry. It specifically relates to a system and a method for in-line determination of the characteristics of worn balls and pieces thereof, which have been ejected from a semi-autogenous mineral grinding (SAG) mill to the external classifiers.

Disclosed herein is a mill liner assembly for a grinding mill, comprising: a mill liner which comprises a wear surface and an opposite inner surface that is arranged in use to be mounted in opposed relation to an interior surface of a shell of the grinding mill, a liner sensor which is embedded within the mill liner; and a control or power arrangement configured to control or power the liner sensor, the control or power arrangement being also embedded in the mill liner.

A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.