The invention relates to a suction device for emptying a container, in particular for emptying a container filled with granular material. The suction device has a plurality of intakes, at least one distributor, the at least one distributor being adapted to connect the plurality of intakes to a central suction line, and a means for holding, which holds at least one first intake of the plurality of intakes at a distance from at least one second intake of the plurality of intakes. The invention further relates to a method and to a system for emptying a container, in particular for emptying a container filled with granular material.

Disclosed is a system for transferring fuel pellets from one container which may be at a location external to a building to a second container which may be at a location in an interior of the building. The system may include a first container positioned at a location remote from the building and a second container positioned proximate to the building. The first and second containers are connected to one another to permit the transfer of fuel pellets from the first container to the second container by a pneumatic apparatus.

Disclosed is a system for transferring fuel pellets from one container which may be at a location external to a building to a second container which may be at a location in an interior of the building. The system may include a first container positioned at a location remote from the building and a second container positioned proximate to the building. The first and second containers are connected to one another to permit the transfer of fuel pellets from the first container to the second container by a pneumatic apparatus.

A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is in fluid communication with a fluidizing pressure source. The extraction duct is in fluid communication with at least one suction source. The control valve connects the extraction duct with an extraction port of the hopper. The control valve is operable between a first position for applying suction from the at least one suction source to the hopper, and a second position providing an exterior opening in at least one of the control valve and the first extraction duct for exhausting pressurized fluid from the hopper and/or collecting at least some of the air and powder that is exhausted from the powder.

A method for temporary storage of granular material in a receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

A method for temporary storage of granular material in a receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

A system is disclosed for conveying proppant from a container to fracking operation equipment. The system includes a proppant delivery assembly having a frame supporting the container adjacent a proppant mover having a conveyor, a shroud enclosing a portion of the conveyor, a proppant chamber coupled to the shroud and a chute coupled to the proppant chamber. The system also includes a dust collection assembly fluidly coupled to the proppant mover to collect the dust particles contained therein. The dust collection assembly includes an air mover, a hood with a dust receptacle, and ductwork coupling the air mover to the dust receptacle. An air flow is generated along a flow path through the dust receptacle and the ductwork to the air mover such that a suction pressure generated by the air mover is sufficient to only capture and remove the dust particles, thus reducing a risk of capturing the proppant.

A system is disclosed for conveying proppant from a container to fracking operation equipment. The system includes a proppant delivery assembly having a frame supporting the container adjacent a proppant mover having a conveyor, a shroud enclosing a portion of the conveyor, a proppant chamber coupled to the shroud and a chute coupled to the proppant chamber. The system also includes a dust collection assembly fluidly coupled to the proppant mover to collect the dust particles contained therein. The dust collection assembly includes an air mover, a hood with a dust receptacle, and ductwork coupling the air mover to the dust receptacle. An air flow is generated along a flow path through the dust receptacle and the ductwork to the air mover such that a suction pressure generated by the air mover is sufficient to only capture and remove the dust particles, thus reducing a risk of capturing the proppant.

The present invention relates to a vacuum conveyor for conveying granulate and/or powdery material, the conveyor comprising: a main body having an upper end and a lower end; a cavity inside the main body, said cavity comprising an opening arranged at the lower end of the main body; a valve arranged at the opening position between an open position allowing a flow of granulate and/or powdery material out from the cavity through said opening and a sealing position sealing said opening; an inlet arranged at the upper end of the main body forming an inlet passage into the cavity; a venturi inside the main body at a position being distinct from the cavity, said venturi comprising an inlet and an outlet; and a suction channel fluidly connecting the throat of the venturi with the interior of the cavity at a position at or above the inlet.

The present invention relates to a vacuum conveyor for conveying granulate and/or powdery material, the conveyor comprising: a main body having an upper end and a lower end; a cavity inside the main body, said cavity comprising an opening arranged at the lower end of the main body; a valve arranged at the opening position between an open position allowing a flow of granulate and/or powdery material out from the cavity through said opening and a sealing position sealing said opening; an inlet arranged at the upper end of the main body forming an inlet passage into the cavity; a venturi inside the main body at a position being distinct from the cavity, said venturi comprising an inlet and an outlet; and a suction channel fluidly connecting the throat of the venturi with the interior of the cavity at a position at or above the inlet.