The present invention relates to a rock processing machine (12), which comprises: a material feeding apparatus (22) having a material buffer (24) for loading starting material (M) to be processed, at least one working apparatus (14, 16, 18) of: at least one crushing apparatus (14) and at least one screening apparatus (16, 18), at least one conveyor apparatus (26, 32, 36, 42) for conveying material (M) between two system components, a data processing apparatus (60) including a data memory (62), an output apparatus (108) connected to the data processing apparatus (60) in data-transmitting fashion for outputting information, wherein the data processing apparatus (60) is designed to ascertain, from data retrievable from the data memory (62) which are based on at least one data collection basis, wear information regarding the wear of a working tool configuration (72, 74, 75a) of the at least one working apparatus (14, 16, 18) and to output the wear information by way of the output apparatus (66, 108),

The invention provides for the data processing apparatus (60) to be designed to ascertain for the wear information, starting from at least one data collection basis, on which at least a portion of the data used for ascertaining the wear information is based, quality information regarding the wear information and to output this by way of the output apparatus (66, 108).

The invention relates to a comminuting machine such as a crusher, a mill, or the like, wherein the material to be comminuted is guided through a gap which is formed between at least one wear layer attached to a component of the comminuting machine and a counter surface and the extension of which varies as the wear of the at least one wear layer progresses. The invention is characterized in that in order to determine the wear occurring on the wear layer and/or in order to determine the effective extension of the gap between the wear layer and the counter surface, a radar antenna is provided which is oriented towards the corresponding counter surface. The radar antenna comprises an antenna region and a wear part which is paired at least with the wear layer region provided for a permissible wear and which shortens as the wear layer wears down.

The disclosure discloses a direct-drive sand mill. In various embodiments, the direct-drive sand mill includes: a motor assembly operable to be electrically powered to generate a rotation around a motor rotor rotation axis, a sand mill main body configured to perform a sanding operation, a main shaft configured to extend from the motor assembly to the sand mill main body and to include a shaft section inside the sand mill main body, the main shaft being coaxially aligned with the motor rotor, main shaft support devices positioned at different locations along the main shaft to support the main shaft to coaxially align the motor rotor rotation axis of the motor assembly to the sand mill main body, and multiple flatness detection assemblies positioned at different locations along the main shaft to detect whether the main shaft shifts with respect to the axis of the main shaft.

Monitoring equipment for monitoring the performance of systems for crushing solid materials are disclosed. The working condition of an elastic liner material is diagnosed and load parameters are analyzed. Integrated into the liner material is a measuring means in the form of a monitoring sensor which works by measuring the axisymmetric bending of the elastic liner material in response to a known force. The data recorded is then sent to an information system for analytical processing. This includes detecting wear and monitoring whether a critical thickness of the liner material has been reached. A housing element (3), a movable sensing element (4) structurally adapted to be continuously thrust in the direction of the wearing surface of the liner material by a resilient pressuring means (5), and a transmitting element (6) are disclosed. The movable sensing element (4) records the magnitude of axisymmetric bending of the liner material and transmits this data to the transmitting element (6), thus providing for a resource-efficient operating regime that makes it possible to use the wearing liner material until critical wear indices are reached.

A grinding roll including a roll body having a cylindrical outer surface extending axially between a pair of opposite ends, and a side groove formed at each end of the roll body. The side groove includes a support shoulder recessed from the outer surface and/or from surfaces of the opposite ends of the roll body. The grinding roll includes an edge ring including a plurality of spaced receiving cavities, and a plurality of wear members each being received and retained in at least one of the receiving cavities. The wear members are positioned along the edge ring to define an edge of the grinding roll, and the edge ring is received within each side groove. The wear members are arranged to provide a wear protecting surface which is angled in relation to the outer surface of the roll body to prevent excessive build-up of material on the grinding roll.

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 monitoring system includes a fastener. A sensor is coupled to the fastener. A circuit board is electrically coupled to the sensor. An antenna electrically coupled to the circuit board.

A 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 includes 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 for optimizing performance of a comminution circuit is also disclosed. The system includes a comminution apparatus varied 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 adapted to measure grinding media. A method of optimizing performance of a comminution circuit is also disclosed.

A method for detecting wear in crushers, having a wearing part (2) mounted on a drive shaft (1), during idle operation is described in which downtimes that impair crusher productivity can be eliminated and nevertheless reliable wear detection is made possible with low risk of injury to machine operators. The drive shaft (1) is accelerated from a starting angular speed (?1) to an end angular speed (?2) with a specified acceleration, and the drive energy required for this is ascertained, whereupon the wear of the wearing part (2) is ascertained as the value assigned to the required drive energy in a specified wearing-part characteristic curve (3, 4, 5).

The present invention provides a system and method for more efficient utilization of comminution mills. Sensors are provided in the liners placed within the mill shell. The sensors may include RFID tags, liner wear profile sensors (e.g., such as an ultrasonic sensor), an inertial sensor (preferably included both an inclinometer and an accelerometer, and an acoustic sensor, among others. When the liners are installed in the shell, the RFID tag is used to register the location of the liner within the shell. In operation, the information provided by the sensors is collected by a data transmission unit and sent by transmitter over the air to a computer having an antenna and receiver for such data. The data is correlated and the data is reviewable in real time while the mill is in running.