A minerals processing unit, such as a vibrating screen (10), is described. The vibrating screen (10) comprises a sensing mechanism operable to detect: (i) motion of the vibrating screen (10) in multiple directions, and (ii) detect planar deviations of a mesh surface (22). The sensing mechanism may comprise a plurality of discrete sensors (60-66), including a gyroscopic sensor (60) operable to detect linear movement in three mutually orthogonal directions, and one or more of roll, pitch, and yaw. The sensing mechanism may further comprise a temperature sensor (64a, 64b) for measuring the temperature of a drive mechanism (42) and an ambient temperature sensor (66a, 66b) for measuring a control value to compare with the drive mechanism temperature.

Disclosed is an inclined mobile screen for processing road building materials which provides for easy reconfiguration of the screen from operation configuration to a transport configuration and to a maintenance configuration, which allows for increased clearance between the screen and a feed conveyor without requiring a hydraulic actuator disposed therebetween. Nested telescopic supports are selectively coupled together in an offset connection to allow changes in the orientation of the screen to result in changes in the separation between the screen and the conveyor so as to allow for more clearance therebetween during time of maintenance.

Disclosed is an inclined mobile screen for processing road building materials which provides for easy reconfiguration of the screen from operation configuration to a transport configuration and to a maintenance configuration, which allows for increased clearance between the screen and a feed conveyor without requiring a hydraulic actuator disposed therebetween. Nested telescopic supports are selectively coupled together in an offset connection to allow changes in the orientation of the screen to result in changes in the separation between the screen and the conveyor so as to allow for more clearance therebetween during time of maintenance.

An operation monitoring system for a sifting device includes: movement state sensing means to be provided for a sieve frame of the sifting device that rotationally oscillates, and capable of sensing a movement state of the sieve frame; and operation monitoring means capable of monitoring an operation state of the sifting device based on measured data transmitted from the movement state sensing means. The operation monitoring means includes a measured data arithmetic processing unit that subjects the measured data to arithmetic processing, and a movement state display unit capable of displaying the movement state of the sieve frame based on arithmetic processing data obtained by the measured data arithmetic processing unit.

It is described a mining screen (100) comprising at least one propulsion element (140) associated with a screening structure (165), wherein the mining screen (100) is able to carry out (develop) at least one vibration regime, thereby promoting the screening of a material moving through the screen (100), wherein the screen (100) is configured in such a way that at least one between the propulsion element (140) and the screening structure (165) are manufactured from a first material, the first material configured as a compound (composite) material. Furthermore, it is described as a screen panel (156) applied on a mining screen (100), a control method for mining screen as well as a mining system.

A system for segregating a mixture of oxidizable catalyst material and inert support media. The system comprises an enclosure configured to contain inert gas. The enclosure includes a plurality of stacked screens disposed therein. The stacked screens include openings that decrease in size from a top of the stack to a bottom of the stack. The enclosure also includes an inlet to deliver the mixture to an uppermost stacked screen and outlets to direct the separated support media and catalyst material to a location outside the enclosure.

The sieving device includes a support device, which holds a sieve, which has at least one sieve lining that is held by a sieve frame, which is connected to a drive device. The drive device, which is controllable by a control device by means of a control program, includes at least three actuators, which are connected each on one side via a first swivel joint to the support device and which are connected each on another side via second swivel joint to the sieve frame, so that the sieve is held solely by the actuators and is displaceable within an operating volume and optionally rotatable.

An aggregate production method includes procuring stone waste by-products, sorting the stone waste by-products by type and color, and subjecting the sorted stone waste by-products to a two-stage crushing process to produce aggregate. The aggregate is screened into different sizes and placed according to size into a bag or container.

A system for measuring volume flow of a material includes: an imaging receiver for receiving images of a screen deck of a vibratory shaker from an overhead position; at least one illumination device for projecting a line of light onto the screen deck from an angle different than a viewing angle of the imaging receiver to the screen deck; and a mounting bracket for holding the imaging receiver and the at least one illumination device in a substantially fixed relative position to one another and to the screen deck. The system is determines the volume flow of the material based on the images of the screen deck.

A system for measuring volume flow of a material includes: an imaging receiver for receiving images of a screen deck of a vibratory shaker from an overhead position; at least one illumination device for projecting a line of light onto the screen deck from an angle different than a viewing angle of the imaging receiver to the screen deck; and a mounting bracket for holding the imaging receiver and the at least one illumination device in a substantially fixed relative position to one another and to the screen deck. The system is determines the volume flow of the material based on the images of the screen deck.