Abstract:
A system for dewatering tailings is disclosed. The system comprises a thickener having a settling tank; a mixing chamber in communication with the thickener for receiving an effluent from the settling tank, and a flocculating agent tank; wherein a valve is provided for selectively limiting a flow of flocculating agent from the flocculating agent tank to the mixing chamber. An optical detector is provided in optical communication with an effluent from the mixing chamber, and an automation controller is provided in communication with the detector and the valve. In use, the automation controller receives data from the detector and provides a control signal to the valve based on the data from the detector.
Abstract:
Disclosed are novel compounds which display enhanced reactive properties due, in part, to induced lattice strain. The new compounds demonstrate accelerated leaching of copper under oxidizing conditions. The activated compounds are produced under conditions of time, temperature, Eh, and pH which retard the rate of lattice strain relaxation. Further disclosed are methods of making and using the novel compounds.
Abstract:
Disclosed is a mobile conveyor apparatus comprising a bridge provided with at least one transport means for conveying material in the longitudinal direction of the bridge and support means extending from the bridge to the ground whereon the mobile conveyor apparatus is positioned where at least one of the support means is a travel support means connected to the bridge and being capable of moving the bridge on the ground and a movable conveyor arrangement supported by the bridge and configured for a back and forth movement on at least a portion of the bridge and being configured for interaction with the transport means. It is characterized in that at least one of the support means is a temporary support means comprising regulation means capable of establishing and removing ground contact.
Abstract:
A method of providing operating electrical power from a stationary power source to a mobile conveyor utilized in material handling at a mine site as the conveyor moves over a predetermined path at the site without having to move long lengths of cable as the conveyor moves away from the power source. The method utilizes a cable reel that features a power receptacle into which a cable connector can be easily plugged and unplugged.
Abstract:
An adjustable vacuum pan assembly for a belt filter is disclosed. The adjustable vacuum pan assembly comprises an arm configured to be attached to a frame portion of the filter, a vacuum pan adjustably connected to the arm, and a cam operatively coupled to the arm. The cam is rotatable with respect to the arm and has a peripheral surface which contacts a portion of the vacuum pan. The assembly further comprises a locking member which serves to hold the cam against rotation with respect to the arm. Varying an angular rotational position of the cam effectively varies a spacing between the vacuum pan and the arm, thereby providing an amount of misalignment compensation therebetween. Retrofit kits for a preexisting conventional filter and methods of providing increased adjustability to a filter are also disclosed.
Abstract:
A horizontal filter press is disclosed. The horizontal filter press comprises a support bracket, a head bracket, two sidebars spanning a distance between said support bracket and said head bracket, and a plurality of double filter plates. Each double filter plate comprises a first individual filter plate having a first filter chamber, one or more first filtrate ports, at least one first feed eye port, and at least one first handle; and a second individual filter plate having a second filter chamber, one or more second filtrate ports, at least one second feed eye port, and at least one second handle. The first and second individual filter plates are initially separate components, but are subsequently mechanically joined together to form said at least one double filter plate. In some embodiments a spacer bar is provided between the first and second individual filter plates. In some embodiments, a cutout is provided between the first and second individual filter plates to accommodate a support beam centrally disposed between said sidebars, the support beam providing additional support to the plurality of double filter plates. Methods of manufacturing a double filter plate are also disclosed.
Abstract:
A system and method for material handling includes a first portable conveyor for feeding material to a mobile bridge conveyor for the material to be stacked via a stacker until a discharge end of the mobile bridge conveyor is at or within a predetermined distance of a discharge end of the first portable conveyor. The first portable conveyor moves away from the mobile bridge conveyor after the discharge end of mobile bridge conveyor is at or within the predetermined distance of the discharge end of the first portable conveyor. A second portable conveyor that feeds material to the first portable conveyor rotates such that a discharge end of the second portable conveyor is moved towards the mobile bridge conveyor until reaching a feeding position for feeding material to the mobile bridge.
Abstract:
In a feed dilution system and method for a thickener or settling tank, a feed pipe nozzle has a variable orifice configured to provide an infeed slurry flow stream of substantially constant velocity. The feed pipe orifice is disposed in a mixing conduit proximate an upstream end thereof, while a downstream end of the mixing conduit is functionally attached to a feedwell inside the thickener or settling tank, so that the mixing conduit communicates with the feedwell. Where a diluting liquid is introduced into the mixing conduit, the variable-orifice nozzle ensures a substantially uniform degree of dilution of the influent slurry feed stream by the diluting liquid.
Abstract:
Disclosed is a method and apparatus for the reduction of organic compounds and other emissions from an industrial plant utilizing a cement or minerals kiln that has a high level of organic compound emissions. The invention consists of a filter for the control of particulate emissions which has been treated with a catalyst to provide catalytic destruction of gaseous emissions as process gases are passed through the porous medium of the filter.
Abstract:
A basket for a horizontal centrifuge, the basket that has a frusto-conical body having a series of accelerator bars with each of the accelerator bars having a width greater than 20 mm.