Abstract: A froth flotation cell for treating mineral ore particles suspended in slurry includes a tank, a gas supply, a first froth collection channel, a second froth collection channel arranged between the centre of the tank and the first froth collection channel, and a radial froth collection launder including a radial froth overflow lip, and extending from the first froth collection channel towards the second froth collection channel. The froth flotation cell further includes a radial froth crowder including a crowding sidewall, and extending from the second froth collection channel to the first froth collection channel. Further, a froth flotation line, its use and a froth flotation method are presented.

Abstract: A chute liner for mounting on a shelf of a chute having at least one locking formation aperture therein. The chute liner includes a base for mounting on the shelf and an arm extending away from the base to a free end. The base has an operatively lower surface and an opposed operatively upper surface that contacts material passing through the chute. At least one mounting formation descends from the operatively lower surface of the base and passes through the locking formation aperture. The mounting formation forms a passage extending therethrough below the shelf and a locking member is displaced into the passage to operatively engage the mounting formation.

Abstract: Disclosed is a deflection distributor refitting kit for a roller crusher. According to the disclosure the deflection distributor refitting kit comprises a deflection distributing shaft, thrust rods each having first and second ends and mounts for attachment of the deflection distributing shaft at a frame of the roller crusher, wherein a first end of each of said thrust rods is attached to the deflection distributing shaft via a lever, wherein a second end of each of the thrust rods is arranged to be attached to a movable bearing housing of the roller crusher, and wherein the deflection distributing shaft comprises at least two interconnectable sub-shafts. Also disclosed is a method for mounting the deflection distributor refitting kit, as well as a roller crusher comprising a deflection distributor.

Abstract: A computer-implemented point-cloud data acquisitioning method for acquiring point-cloud data of the inside of a mining equipment. The method includes the step of acquiring from a sensor, a first dataset and a second dataset, wherein each dataset includes datapoints at coordinates. The method extracts features from the first and second dataset and aligns the first and second dataset using the extracted features. The first and second dataset are aligned into a point-cloud data. The geometry of the mining equipment is estimated based on the point-cloud data and the point-cloud data is used to identify a region of the estimated geometry indicating insufficient data.

Abstract: A nutless bolt 10 for fastening a wear plate 12 to a structure 14 comprises a body 16 having a shaft 18 and a stop 20 coupled to the shaft 18. Shaft 18 is dimensioned to pass through a hole 22 in structure 14 while stop 20 is configured to stop the body 16 from falling wholly into or through the hole 22, and to engage with the wear surface plate. An axial bore 24 is formed in body 16 and houses locking balls 58 and a rod 28. The body 16 also has radial channels along which the balls 58 can roll. The rod 28 has a tapered portion 70 which increases in outer diameter from a first location L1 to a second location L2. In use the balls 58 are initially at the first location L1 on the rod 28 and partially within respective channels 56. Pulling the rod 28 in an up-hole direction results in the rod 58 moving in a radial outward direction as they roll along the tapered portion 70 to the location L2. The balls now lie partially outside of the of the body 16 locking the bolt 10 in the hole 22.

Abstract: A feedwell apparatus trough, plant and use. The apparatus is adapted to materials including liquids carrying suspended particles, such as slurry containing minerals. The feedwell apparatus includes a supply channel for receiving the material, a trough, a first end of which being connected in fluid communication with the supply channel. The trough has a curved shape that turns in one direction, and a series of through-openings in the wall(s) of the trough. The through-openings are arranged in the trough in unequal pattern such that the area of the through-openings in pro-portion to the corresponding area of the walls has its minimum value in portion of the trough close to the first end thereof, and the relation being arranged to grow with the distance from the first end.

Abstract: A froth flotation unit for treating mineral ore particles suspended in slurry includes a tank, a gas supply for introducing flotation gas into the slurry to form froth, and a first froth collection launder including a first froth overflow lip facing towards the centre of the tank. The froth flotation unit has a pulp area of at least 15 m2 measured at a mixing area. The froth flotation unit further includes a second froth collection launder with a first froth overflow lip facing the perimeter of the flotation tank, and a froth blocker arranged between the first froth overflow lip and the second froth overflow lip. A froth flotation line, its use, and a froth flotation method are also disclosed.

Abstract: The present disclosure relates to a monitoring system for a hydraulic system in a comminution apparatus including at least one pressurized accumulator. The monitoring system includes at least one pressure sensor and a control unit, wherein the pressure sensor is connected to the control unit. The pressure sensor is arranged to measure a pressure in the at least one accumulator and the control unit is configured to determine that a pressure in the accumulator is outside of a predefined range. The control unit is further configured to control a pressure regulating system that is arranged to restore the pressure in the pressurized accumulator.

Abstract: The disclosure relates to a chute liner for mounting on a shelf of a material transfer chute. The shelf has at least one locking formation aperture formed therein. The chute liner has a base for mounting on the shelf. The base has an operatively upper surface that comes into contact with material passing through the chute and an opposed operatively lower surface. The base has at least one mounting formation that depends from the operatively lower surface of the base that defines a passage which in use is passed through the locking formation aperture in the shelf. The chute liner also has a locking member passed through the passage until it operatively engages the mounting formation to lock the base to the shelf.

Abstract: An apparatus for cleaning industrial gear teeth is provided. The apparatus includes a framework; at least one rail mounted on the framework and extending at least a part of a length of the framework; a gantry in slidable engagement with the rail; a stepper motor mounted on the framework and in motive communication with the gantry; a pair of limit switches which are slidably mounted on the rail; a window which is attached to the framework behind the rail, extends along the part of the length of the framework and includes a horizontal slot which extends along the part of the length of the framework; a pipe which is attached to the gantry and extends through the horizontal slot, the pipe for attachment to a source of pressurized cleaning fluid; and a microprocessor which is in electronic communication with die stepper motor and the limit switches.

Abstract: The present invention provides a wear liner assembly (13) adapted to be secured to a structure (15). The wear liner assembly comprises a wear liner (14) having a first material secured to a backing plate (17). The backing plate has at least one hole (43) therethrough. A first fastener portion is adapted to co-operate with a second fastener portion to securing the wear liner to the structure. The first fastener portion is received in the at least one hole and is at least partially housed within the wear liner.

Abstract: A nutless bolt 10 for fastening a wear plate 12 to a structure 14 comprises a body 16 having a shaft 18 and a stop 20 coupled to the shaft 18. Shaft 18 is dimensioned to pass through a hole 22 in structure 14 while stop 20 is configured to stop the body 16 from falling wholly into or through the hole 22, and to engage with the wear surface plate. An axial bore 24 is formed in body 16 and houses locking balls 58 and a rod 28. The body 16 also has radial channels along which the balls 58 can roll. The rod 28 has a tapered portion 70 which increases in outer diameter from a first location L1 to a second location L2. In use the balls 58 are initially at the first location L1 on the rod 28 and partially within respective channels 56. Pulling the rod 28 in an up-hole direction results in the rod 58 moving in a radial outward direction as they roll along the tapered portion 70 to the location L2. The balls now lie partially outside of the of the body 16 locking the bolt 10 in the hole 22.

Abstract: A method and apparatus of preparing lithium compound(s) from lithium-containing mineral includes a) a leaching step, wherein the lithium-containing mineral is leached in aqueous leach solution containing alkaline carbonate, for liberating lithium and phosphate(s) from the lithium-containing mineral, thus obtaining leach slurry containing lithium carbonate and phosphate(s) leach slurry, b) a carbonization step, wherein the leach slurry containing lithium carbonate and phosphate(s), obtained from the leaching step, is reacted with an alkali earth metal compound in the presence of CO2 for obtaining a carbonated slurry containing lithium hydrogen carbonate, and for precipitating phosphate(s) contained in the leach slurry as insoluble phosphate compound(s), c) a solid-liquid separation step, wherein the carbonated slurry obtained from carbonization step is subjected to solid-liquid separation wherein the undissolved mineral and phosphate compound(s) are separated as solids that can be recovered or discarded, there

Abstract: A deflection distributor refitting kit for a roller crusher. The deflection distributor refitting kit includes a deflection distributing shaft, thrust rods each having first and second ends and mounts for attachment of the deflection distributing shaft at a frame of the roller crusher. A first end of each of the thrust rods is attached to the deflection distributing shaft via a lever. A second end of each of the thrust rods is arranged to be attached to a movable bearing housing of the roller crusher. The deflection distributing shaft includes first and second shaft parts which are interconnected by means of a shock absorbing unit. A method for mounting the deflection distributor refitting kit, as well as a roller crusher including the deflection distributor.

Abstract: A suction liner for a centrifugal pump for processing slurries. The suction liner includes a cylindrical portion arrangeable in the casing of the centrifugal pump, and a flange portion which protrudes outwards in a radial direction from the cylindrical portion. The flange portion is arrangeable such that, when mounted in a centrifugal pump, at least a portion of a front end surface of the flange portion of the suction liner abuts against at least a portion of a front end of the impeller to seal an axial gap between the suction liner and the impeller, and at least the front end surface of the flange portion is made of a low friction polymer. A centrifugal pump for processing slurries can be used with the suction liner. The suction liner and the centrifugal pump allow preventing recirculation of pumping liquid in a centrifugal pump and, thereby, reducing wear.

Abstract: A roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, where each roller has two ends. The roller crusher includes a flange attached to at least one of the ends of one of the rollers, where the flange extends in a radial direction of the roller and has a height above an outer surface of the roller. The roller crusher further includes at least two scrapers arranged consecutive to each other at an end of the roller with a flange for at least partially removing material accumulated on the flange and/or on the outer surface at the end of the roller. A method for operating a roller crusher is also provided.

Abstract: The disclosure relates to a method for positioning a wear element relative to a supporting structure using a multi axis wear element positioning equipment having a wear element positioning unit. The method includes the steps of arranging a wear element positioning equipment in a replacement position relative to the supporting structure. The coordinates of an intersection point are defined where the virtual line intersects a surface of the supporting structure. The wear element positioning unit is aligned with the surface of the supporting structure at the intersection point such that a connecting surface of the wear element carried by the wear element positioning unit matches with a corresponding connecting surface of the supporting structure at the intersection point. The disclosure further relates to a system for positioning a wear element relative to a supporting structure.