Abstract: Systems and methods are provided for controlling the flow and transport of catalyst particles within a reaction system. The flow of catalyst particles can be managed using a rotating disc or wheel that is configured within a roller volume to allow for control over the rate of catalyst flow while reducing or minimizing attrition of the catalyst particles. This can be achieved in part by maintaining a relationship between the center of the rotating disc, the inlet for catalyst particles to the roller volume, and the top wall of the roller volume so that catalyst particles are not exposed to compressive forces and/or abrasion during rotation of the disc. Additionally or alternately, the disc and roller volume surfaces can be configured to reduce or minimize the potential for catalyst particles to become trapped in “dead space” regions within the roller volume.

Abstract: A conveying device for free-flowing fine-particle solids (bulk material), in particular for powdery and/or granular (mixed) material, especially plastic granulate, includes a vertically arranged and flexibly mountable pipe for the conveyance of, preferably, polymer granulates, for example in a plant for the filling of polymer granulates. The transport pipe may be included on a mobile work platform.

Abstract: An aggregate handling system includes an aggregate delivery station, which includes one or more delivery bays for receiving aggregate from a delivery truck. The system includes storage apparatus associated with each delivery bay and adapted to receive aggregate by gravity feeding from that delivery bay, wherein each storage apparatus includes one or more storage hoppers. The system also includes weigh apparatus associated with each storage apparatus and adapted to receive aggregate from that storage apparatus, wherein each weigh apparatus includes one or more weigh hoppers, and a conveyor for receiving aggregate from the weigh apparatus and being adapted to transfer aggregate to a batching area.

Abstract: A conveyor apparatus comprises an upper conveyor tube. A lower conveyor tube has an open upper discharge end telescopically engaged with the upper conveyor tube, and an intake hopper mounted on a lower intake end. A telescope actuator selectively extends and retracts the lower conveyor tube. Wheels are attached to the upper conveyor tube to support the lower end of the upper conveyor tube and the lower conveyor tube. The wheels are oriented for travel transverse to the conveyor tubes, and an elevating actuator is operative to raise and lower the wheels. A conveyor belt has a top run that passes through the hopper and conveyor tubes, and a belt drive moves the top run of the conveyor belt up through the conveyor tubes to carry material from the intake hopper to the upper discharge end of the upper conveyor tube.

Abstract: There is disclosed a continuously operating system for removing particulate material from the bottom portion of a suitable storage silo. The system includes a feed conveyer from the silo to a vertical uplifting conveyer whereby the particulate material is raised to a level sufficiently high to efficiently feed a packing system or the like. A by-pass arrangement whereby to return the particulate material to the vertical uplifting conveyer whenever the packing system is indicated.