A transfer chute (10) for use in bulk materials handling operations, and also a methodology for designing such a transfer chute, a method of constructing the transfer chute, and a method of transferring bulk materials between two locations using the transfer chute. The transfer chute (10) comprises a chute body (11) defining a flow pathway (19), with an upper section (19a) of the flow pathway accommodating accelerating flow to maintain dense granular flow regime, an intermediate section (19b) of the flow pathway providing consolidated flow in which the flow rate is retarded in a controlled manner avoiding creation of flow turbulence, and a lower section (19c) of the flow pathway in which flow is further retarded to create a controlled accumulation and build-up of material upwardly from the lower section.

A material feed system includes a conveyor powered by a motor, a bin disposed to retain and deposit the material on the conveyor, a load transducer configured to sense total weight of the bin and retained material, a tachometer configured to produce a tachometer output reflecting conveyor speed, a motor controller configured supply the motor with a motor control command driving the motor to a volumetrically estimated mass flow rate based on the tachometer, and a compensator configured to compute a gravimetric mass flow rate based on change in total weight sensed by the load transducer. The compensator is disposed to intercept and adjust either the motor control command or the tachometer output, so as to correct for differences between the volumetrically estimated mass flow rate and the gravimetric mass flow rate.

A material feed system includes a conveyor powered by a motor, a bin disposed to retain and deposit the material on the conveyor, a load transducer configured to sense total weight of the bin and retained material, a tachometer configured to produce a tachometer output reflecting conveyor speed, a motor controller configured supply the motor with a motor control command driving the motor to a volumetrically estimated mass flow rate based on the tachometer, and a compensator configured to compute a gravimetric mass flow rate based on change in total weight sensed by the load transducer. The compensator is disposed to intercept and adjust either the motor control command or the tachometer output, so as to correct for differences between the volumetrically estimated mass flow rate and the gravimetric mass flow rate.

An adjustable conveyor gate for receiving goods from a conveyor and for selectively being adjusted to direct the received goods to one of at least two receiving structures, the adjustable conveyor gate having a rotatable trough extender with an opening therein with a proximal drop wall and a distal drop wall angularly and axially spaced from the proximal drop wall. Positioning the proximal drop wall at an elevated position, with the distal drop wall at a lowered position, causes goods moving through the adjustable conveyor gate to drop from the distal drop wall to a first receiving structure there beneath. Positioning the distal drop wall at an elevated position, with the proximal drop wall at a lowered position, causes goods moving through the adjustable conveyor gate to drop from the proximal drop wall to a second receiving structure there beneath.

A system for conveying proppant includes a conveyor assembly having a conveyor belt that receives proppant from one or more containers having proppant stored therein. The system also includes a conveyor auxiliary unit connected to an end of the conveyor assembly having one or more joints to enable expansion and collapse of the conveyor belt from the conveyor assembly. The system further includes a proppant chute to direct the proppant from the conveyor belt into a blending hopper, the proppant chute being positioned at a higher elevation than an inlet of the blending hopper.

A material management system and method manages and tracks the progress of excavated material transferred through an excavation site by a conveyer system operating in cooperation with an in-pit crusher and conveyer (IPCC). The material management system distinguishes the material dispensed into the IPCC into identified material batches. To track the identified material batches, the material management system records data regarding the conveyer speed and the conveyer distance associated with the IPCC, as well as possible other data regarding the identified material batches. The material management system processes this to track the indentified material batches along the conveyer route.

A material management system and method manages and tracks the progress of excavated material transferred through an excavation site by a conveyer system operating in cooperation with an in-pit crusher and conveyer (IPCC). The material management system distinguishes the material dispensed into the IPCC into identified material batches. To track the identified material batches, the material management system records data regarding the conveyer speed and the conveyer distance associated with the IPCC, as well as possible other data regarding the identified material batches. The material management system processes this to track the indentified material batches along the conveyer route.

The disclosure relates to a conveyor device that comprises a conveyor belt with a conveying strand for conveying bulk material and a return strand. The conveying strand has a conveying surface on which a material flow is running whose feed rate is given by the product of a linear velocity of the conveying strand and a conveying cross-section of the material flow. The disclosure is characterized by a variable flow limiting device that is movable between a first position and a second position. The conveying cross-section downstream of the flow limiting device is smaller in the second position than in the first position.

A compact modular mobile aggregate processing system configured with no stand-alone inter-plant conveyors for decreasing the footprint of the system and an infinitely adjustable flow diverter(s) for increasing the control of and variation of output characteristics of the system; the system further including specialized folding conveyors.

A system for conveying proppant includes a conveyor assembly having a conveyor belt that receives proppant from one or more containers having proppant stored therein. The system also includes a conveyor auxiliary unit connected to an end of the conveyor assembly having one or more joints to enable expansion and collapse of the conveyor belt from the conveyor assembly. The system further includes a proppant chute to direct the proppant from the conveyor belt into a blending hopper, the proppant chute being positioned at a higher elevation than an inlet of the blending hopper.