A comminution apparatus for comminuting a solids-containing medium includes a rotatably mounted drive shaft, which can be coupled to a drive apparatus to drive a cutting apparatus, the cutting apparatus having a first cutting element, comprising a cutting edge, and a second cutting element, comprising a second cutting edge, wherein the first cutting element and the second cutting element are movable relative to one another in such a way that the relative movement brings about a shearing action between the cutting edge and the second cutting edge. The first cutting element is connected fixedly in terms of torque to the drive shaft and is movable on a first movement path relative to the second cutting element. The comminution apparatus is adapted for operation in a first operating mode and a second operating mode different from the first operating mode to comminute the solids-containing medium.

A measuring device for ascertaining the temperature of a roller surface of a roller body is insertable into a recess of the roller body and includes at least first and second temperature sensors, a mounting rod on which the sensors are situated in the axial direction of the mounting rod spaced apart from each another, and, on each side of each respective one of the temperature sensor in the axial direction a respective supporting element arranged on the mounting rod. Between the supporting elements, the mounting rod is flexible such that each of the temperature sensors is able to be pressed onto an inner wall of the recess with a defined contact force.

A self-optimizing, adaptive product processing system and a corresponding method for grinding and/or crushing cereals and seeds. The grinding and/or crushing takes place in at least one roller mill which includes a roller pair. So as to detect the temperature of the surfaces of the rollers, at least two temperature sensors are disposed on at least one of the rollers. The detected temperature measurement values are used for optimal adjustment and signal generation of the roller setting.

A freely moving grinding media adapted to measure one or more physical characteristics of a comminution apparatus during operation or a charge therein is disclosed. The grinding media comprises a freely moving grinding body with a bore disposed in an outer body portion of the body. A sensor body is configured to be received in the bore. The sensor body comprises a rigid sleeve, a resilient core and a sensor array embedded in the core of resilient material. A system of optimising performance of a comminution circuit is also disclosed. The system comprises a comminution apparatus in response to one or more physical characteristics of the comminution apparatus or the charge contained therein, measured during operation of the comminution apparatus. The system comprises a plurality of the freely moving grinding media. A method of optimising performance of a comminution circuit is also disclosed.

A device and a system monitor wear of lifters mounted in a mineral crusher. An elongated bolt maintains a lifter in place on an internal face of the crusher. A threaded section of the bolt terminates at a proximal end protruding externally through a hole of the crusher. A shank of the bolt terminates at a distal end opposite from the proximal end. The shank extends along a height of the lifter and wears as the lifter wears when the crusher is in operation. A transducer coupled to the proximal end of the bolt generates a sound wave applied to the proximal end of the bolt, detects an echo of the sound wave reflected by the distal end of the bolt, and reports to a controller a time delay between the sound wave and the echo. The controller evaluates a wear of the lifter based on the time delay.

A gyratory crusher bottomshell and inspection hatch assembly is attachable exclusively to the bottomshell via a wear plate positioned at an internal region of the bottomshell. A wall thickness of the bottomshell at a border region immediately surrounding the hatch opening is generally equal to or less than a wall thickness over a remainder region of the wall at the same axial height position of the hatch opening.

A wear gauge 10 comprises an elongate substrate 12 having a proximal end 14 and a distal end 16. At least a first row 18 of spaced electronic components 22.1, 22.3 . . . 22.n and a juxtaposed second row 20 of spaced electronic components 22.2, 22.4 . . . 22.n1 are provided on the substrate. The first and second rows extend in a direction from the proximal end towards the distal end of the substrate. The electronic components 22.2 to 22.n1 in the second row are spatially interposed between adjacent electronic components 22.1 to 22.n in the first row. The electronic components of the first and second rows are electrically connected in parallel by conductive tracks 19. An electrical parameter relating to the parallel connection as measured at a port 24 of the parallel connection towards the proximal end, changes as electronic components are removed from the connection from the distal end, to provide an indication of the extent of wear, as indicated by the arrow A.

A wear liner retention device wear liner retention device comprises a shank structure, a nut structure, and an additional nut structure. The shank structure comprises a threaded region, an additional threaded, and an unthreaded region intervening between the threaded region and the additional threaded region. The nut structure is configured to threadably couple to the threaded region of the shank structure. The additional nut structure is configured to threadably couple to the additional threaded region of the shank structure. Related assemblies and methods are also described.

The invention relates to a jet mill comprising a milling chamber with a longitudinal axis, an inlet at one end of the axis and an outlet at the opposite end of the axis, the milling chamber comprising a multitude of pins arranged in the free flow cross-section of the milling chamber, wherein the pins are arranged in at least two planes perpendicular to the longitudinal axis, the planes being distant to each other in the longitudinal direction, and the pins of one plane being laterally offset to the pins of the subsequent plane, wherein the milling chamber is divided into alternate pin segments and acceleration segments, the pin segments each having at least two planes of pins, and the acceleration segments having no pins.

A product processing installation and corresponding method for the grinding and/or crushing of granular fruits or the like. There is a self-adaptive regulation and control method and corresponding regulation and control device for the self-optimised control of a mill installation and a grinding line of a roller system of the mill installation. The grinding line include a plurality of processing units, which, based on operational process parameters, can each individually be controlled and individually regulated in their operation by means of the regulation and control device. A batch control with a defined processing sequence in the processing units can be regulated by an operational process recipe, wherein a defined amount of a final product can be produced from one or more input materials by means of the operational process recipe. The processing units are controlled based on specific operational batch process parameters assigned to the operational process recipe.