A composite milling component comprising a composite region of ceramic material and metal is disclosed. The milling component may comprise a lifting member such as a digger shoe of a vertical tower mill, a flight liner of a vertical tower mill, a shell liner of a horizontal axis mill, and/or an end liner of a horizontal axis mill. The composite region may be formed into a portion of the milling component that experiences greater wear than other portions to increase a wear-resistance of the milling component. The composite region may be formed integrally into the milling component during a casting processes of the milling component.

A crusher wear resistant liner for positioning at a crusher bottom shell includes a plurality of modular wear resistant plates mountable at an inside surface of the bottom shell and positioned side-by-side to surround and protect the bottom shell interior. To prevent independent dislodgement of each plate and liner, respective inter-engaging formations are provided at each plate to contact at least one adjacent plate of the assembly to arrest any unintentional downward movement in the event that the primary fixings become ineffective.

A crusher wear resistant liner for positioning at a crusher bottom shell includes a plurality of modular wear resistant plates mountable at an inside surface of the bottom shell and positioned side-by-side to surround and protect the bottom shell interior. To prevent independent dislodgement of each plate and liner, respective inter-engaging formations are provided at each plate to contact at least one adjacent plate of the assembly to arrest any unintentional downward movement in the event that the primary fixings become ineffective.

A lifter bar, method for making a lifter bar, a method for assembling a lifter bar and a grinding mill for ore grinding is provided. The lifter bar includes a lifter bar body having an outer surface conforming to the outer surface of the lifter bar and a fixing element for connecting the lifter bar to the shell of the grinding mill. The lifter bar body further includes a first portion and a second portion forming a continuous lifter bar body. The fixing element is embedded in the first portion such that it forms part of the fixing surface of the lifter bar. The second portion is made of polyurethane and forms 35-85% of the volume of the lifter bar.

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 system and method for mounting a liner element to a mill shell of a mill. The system includes one or more fastening bolts, and one or more associated liner interface guide elements each having a locking portion having a cross-sectional dimension larger than a cross-sectional dimension of a bolt body of the fastening bolts. Each fastening bolt and an associated liner interface guide element are structured and arranged to be attached to each other such that, when inserted into the liner element through-hole, the liner interface guide element, by means of the locking portion, locks the fastening bolt to the liner element and protrudes out from the back side thereof to define a guide portion. The guid portion is arranged to penetrate into an associated mill shell through-hole thereby guiding the liner element into a mounting position at which the liner element is in abutment with the mill shell.

A system and method for mounting a liner element to a mill shell of a mill. The system includes one or more fastening bolts, and one or more associated liner interface guide elements each having a locking portion having a cross-sectional dimension larger than a cross-sectional dimension of a bolt body of the fastening bolts. Each fastening bolt and an associated liner interface guide element are structured and arranged to be attached to each other such that, when inserted into the liner element through-hole, the liner interface guide element, by means of the locking portion, locks the fastening bolt to the liner element and protrudes out from the back side thereof to define a guide portion. The guid portion is arranged to penetrate into an associated mill shell through-hole thereby guiding the liner element into a mounting position at which the liner element is in abutment with the mill shell.

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 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.