A cleaning system for cleaning a pneumatic conveyance system used to transport particulate material. The pneumatic conveyance system includes a material-introduction device for introducing particulate material into a convey line, and a motive air source for generating an air flow to propel the particulate material through the convey line. The cleaning system comprises a projectile comprising a cleaning surface for cleaning an interior of the convey line as the projectile travels through the convey line, a launcher for injecting the projectile into the convey line, with the launcher being coupled with the convey line at a position upstream from the material-introduction device, and a catcher vessel for receiving the projectile upon said projectile exiting the convey line.

The invention relates a device for suctioning off waste products of the production machine comprising a suction chamber at which at least a suction element is assembled which extends into a suction space, which is outside the suction chamber in order to convey waste products into the suction chamber, wherein the suction element comprises an inlet area, which is facing the suction space and an outlet area, which ends in the suction chamber.

Disclosed material flow amplifiers have opposing amplifier bodies each with a profile that jointly defines an amplifier body (i.e., “clamshell configuration”). The amplifier body has a flow expander section and a vortex inducer section. A vortex chamber insert is within at least an interior space of the vortex inducer section. Such material flow amplifiers provide for flow of flowable material within a flow passage of a material flow conduit (e.g., a portion of a pipeline, tubing or the like) to have a cyclonic flow (i.e., vortex or swirling) profile. Advantageously, the cyclonic flow profile centralizes flow toward the central portion of the flow passage, thereby reducing laminar flow.

An internal inclined sub-channel, or ramp device, for suspending and/or re-suspending solids within a pipeline system during transport of slurry may be provided to various components of the slurry transport system to control or reduce localized and severe wear that often occurs in slurry pumps. Embodiments of the ramp device may be adequately configured to alter slurry multiphase flow patterns and/or disrupt traditional moving/sliding bed regime phenomena. Embodiments of the ramp device may be adequately configured to raise coarse abrasive particulates from bottom portions of a slurry pipe section—where a higher concentration and/or a larger presence of coarser particles may be present. Embodiments of the ramp device may be installed in proximity of and/or upstream of slurry pumps to prevent occurrences of severe localized wear at the inner diameter of the pump suction side wall around the bottom or 6 o'clock position.

To provide a method for quantitatively and stably feeding fine powder and a system for carrying out the method. The present invention is characterized in that a gas transfer type fine powder quantitative feeding method for quantitatively transferring and feeding fine powder filled in a gas transfer type fine powder quantitative feeder to a fine powder using device by a carrier gas, wherein

when a mixed fluid of the fine powder and the carrier gas is transferred from the gas transfer type fine powder quantitative feeder to the fine powder using device, a water content in the carrier gas is adjusted to suppress an amount of static electricity that is generated in the mixed fluid.

A mixture of gas and solid particles are conveyed through a piping circuit connected between initial and terminal points. The gas is introduced at the initial point and the particles are introduced between the initial and terminal points. A diameter of the piping circuit increases downstream of where the particles are introduced, and a velocity of the gas is at least as great as a pick-up velocity of the particles at the point where the particles are introduced into the piping circuit. In addition to the above constraints, the piping circuit is sized so that total pressure losses due to flow in the piping circuit between the initial and terminal points are within a designated amount.

An auger conveyor for transferring, from a first location, a mixed material including granular material and unwanted particulate contaminants, to a second location, the granular material substantially free of the unwanted particulate contaminants, comprising a housing in which there is rotatably supported a conveying member in the form of an auger or screw. A portion of the housing is perforated to provide a tubular screen, and the conveying member includes projecting agitation tabs along a length thereof which is coincident with the perforated portion of the housing, to propel the mixed material in the housing towards the screen so as to urge the unwanted particulate contaminants out of the housing leaving the granular material therein for conveyance to the outlet.

A mixture of gas and solid particles are conveyed through a piping circuit connected between initial and terminal points. The gas is introduced at the initial point and the particles are introduced between the initial and terminal points. A diameter of the piping circuit increases downstream of where the particles are introduced, and a velocity of the gas is at least as great as a pick-up velocity of the particles at the point where the particles are introduced into the piping circuit. In addition to the above constraints, the piping circuit is sized so that total pressure losses due to flow in the piping circuit between the initial and terminal points are within a designated amount.

A mixture of gas and solid particles are conveyed through a piping circuit connected between initial and terminal points. The gas is introduced at the initial point and the particles are introduced between the initial and terminal points. A diameter of the piping circuit increases downstream of where the particles are introduced, and a velocity of the gas is at least as great as a pick-up velocity of the particles at the point where the particles are introduced into the piping circuit. In addition to the above constraints, the piping circuit is sized so that total pressure losses due to flow in the piping circuit between the initial and terminal points are within a designated amount.

A fluid control system in pneumatic conveying ducts of powdered or granular material, comprising: a supply source of a pressurized gas for transporting said powdered or granular material; an injection line of said gas to put said source in fluid communication with a conveying duct inside which the material is conveyed; a self-regulating pressure valve arranged on the injection line between the source and said duct; a control member of the self-regulating valve to provide a control signal to said valve representing a pressure value, said valve maintaining the gas flow supplied in said duct constant; and a flow and flow rate meter, arranged on the injection line upstream of the valve to transmit a flow and flow rate value to said control member.