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.

Material flow amplifiers as disclosed herein overcome drawbacks associated with known adverse flow conditions (e.g., surface erosion and head losses) that arise from flow of certain types of materials (e.g., fluids, slurries, particulates, flowable aggregate, and the like) through a material flow conduit. 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 magnitude of laminar flow. Such cyclonic flow profile provides a variety of other advantages as compared to a parabolic flow profile (e.g., increased flow rate, reduce inner pipeline wear, more uniform inner pipe wear, reduction in energy consumption, reduced or eliminated slugging and the like).

Material flow amplifiers comprise at least one helix vane within a vortex chamber of an amplifier body and at least a portion of an outer edge portion of the at least one helix vane is attached to an interior surface of the amplifier body. A centralizer tube is centrally located within the amplifier body and has at least a portion of an inner edge portion of the at least one helix vane is attached to an exterior surface thereof. Such material flow amplifiers provide for flow of flowable material within a flow passage of a material flow conduit 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 to provide for increased flow rate in addition to reducing inner pipeline wear and energy consumption.

The invention relates to improvements in the technical field of feeding solid materials to mixing devices. For this purpose, the solid-material feeding device, inter alia, is proposed. The solid-material feeding device comprises the slide, which can be moved between a first end position and a second end position through a conveying connection, which is arranged between a funnel and a solid-material outlet of the solid-material feeding device. By means of the slide, adhesions within the conveying connection can be loosened without having to remove the conveying connection.

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 material diverter for separating bulk goods includes a housing containing an inlet and at least two outlets, as well a guide element located between the inlet and the outlets that is pivotable about a pivot bearing in order to guide the material flow to one of the outlets. The material diverter further includes a pivot drive for pivoting the guide element, in order to align it between the inlet and one of the outlets. The housing includes a door that can be moved on the housing or removed therefrom. A first bearing element in the pivot bearing is located on the housing, and a second bearing element in the pivot bearing is located on the door. The guide element is received in the first and/or second bearing element such that it can be removed therefrom to facilitate servicing and cleaning of the material diverter and the guide element.

Process and device for pneumatically conveying a powdery material comprising the steps of Pneumatically conveying a powdery material in a pneumatic conveying pipeline (first) and into said recipient by a flow generated by a blower, A powdery material dosing step, A fluctuation step of pressure drop in said pneumatic conveying pipeline or up to said recipient,
wherein a sonic device generates sonic waves inside said pneumatic conveying pipeline or up to said recipient and provides a counteraction on the fluctuation step of the pressure drop in said pneumatic conveying pipeline or up to said recipient.

Methods and apparatuses for conveying particulate material are described. A particulate material conveying apparatus may comprise a slide duct having a slide duct axis. The slide duct may comprise an interior region, and the interior region may have a top third interior region, a middle third interior region, and a bottom third interior region. The top third interior region is disposed above the middle third interior region and the middle third interior region is disposed above the bottom third interior region. The duct further defines an opening. An air movement mechanism may be connected to the duct an configured to move air through the opening into the slide duct in a direction of the slide duct axis such that a greater amount of air exits through the bottom third interior region than either of the top third interior region or the middle third interior region.

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 sectionwhere 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.

A material diverter for separating bulk goods includes a housing containing an inlet and at least two outlets, as well a guide element located between the inlet and the outlets that is pivotable about a pivot bearing in order to guide the material flow to one of the outlets. The material diverter further includes a pivot drive for pivoting the guide element, in order to align it between the inlet and one of the outlets. The housing includes a door that can be moved on the housing or removed therefrom. A first bearing element in the pivot bearing is located on the housing, and a second bearing element in the pivot bearing is located on the door. The guide element is received in the first and/or second bearing element such that it can be removed therefrom to facilitate servicing and cleaning of the material diverter and the guide element.