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.

A pneumatic distribution system for an agricultural machine includes an air source having an outlet, an assembly configured to receive agricultural material from a material source, and a plurality of conduits. Each conduit is configured to receive an air stream from the outlet for conveying a portion of the agricultural material to at least one device associated with the agricultural machine. A first one of conduits corresponds to a first distribution line and is positioned such that the first conduit receives a first air stream from a first area of the outlet, a second one of the conduits corresponds to a second distribution line and is positioned such that the second conduit receives a second air stream from a second area of the outlet having a lower air pressure than the first area, and the first distribution line has a higher pressure drop than the second distribution line.

A pneumatic distribution system for an agricultural machine includes an air source having an outlet, an assembly configured to receive agricultural material from a material source, and a plurality of conduits. Each conduit is configured to receive an air stream from the outlet for conveying a portion of the agricultural material to at least one device associated with the agricultural machine. A first one of conduits corresponds to a first distribution line and is positioned such that the first conduit receives a first air stream from a first area of the outlet, a second one of the conduits corresponds to a second distribution line and is positioned such that the second conduit receives a second air stream from a second area of the outlet having a lower air pressure than the first area, and the first distribution line has a higher pressure drop than the second distribution line.

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.

An object of the present invention is to provide a technique in which deposition of powder during pneumatic transport can be inhibited by a pipe body having a simple structure. The present invention is a pipe for transporting powder including a transport path which has a portion formed by a curved pipe and through which pneumatically transported powder passes, and a blowing path through which a gas is blown into the transport path from an opening formed on an inner circumferential surface of the curved pipe, in which the blowing path blows the gas in a direction in which the gas blown into the transport path from the opening forms a swirling flow along the inner circumferential surface of the curved pipe.

A material handling system has an input conduit section 12 having an input cross-sectional shape, an output conduit section 14 having an output cross-sectional shape that is different than the input cross-sectional shape, and a transition adaptor 18 connecting the input conduit section 12 and the output conduit section providing a transition between the input and output cross-sectional shapes. The transition adaptor includes a crown piece 20 that has an outer end having an elliptical sectional shape and an inner end. The transition adaptor includes a box piece 30 that has an inner end and an outer end 32 having a rectangular sectional shape, wherein the inner end of the crown piece mates with the inner end of the box piece. The box piece is formed by a first box half and a second box half 42, wherein each box half 40 is formed from a flat piece of metal and is formed by bending the box half 40 about bend lines.

A material handling system has an input conduit section 12 having an input cross-sectional shape, an output conduit section 14 having an output cross-sectional shape that is different than the input cross-sectional shape, and a transition adaptor 18 connecting the input conduit section 12 and the output conduit section providing a transition between the input and output cross-sectional shapes. The transition adaptor includes a crown piece 20 that has an outer end having an elliptical sectional shape and an inner end. The transition adaptor includes a box piece 30 that has an inner end and an outer end 32 having a rectangular sectional shape, wherein the inner end of the crown piece mates with the inner end of the box piece. The box piece is formed by a first box half and a second box half 42, wherein each box half 40 is formed from a flat piece of metal and is formed by bending the box half 40 about bend lines.

A plenum of distributing a flow of air from an air source includes ports extending from a face element of a body. The ports are configured to direct the flow of air out of the plenum, and the ports are arranged on the face element in a first row having first length, a second row having a second length, and a third row having a third length. The first row is positioned proximate to the top element, the third row is positioned proximate to the bottom element, and the second row is positioned between the first row and the third row. In addition, the second length is greater than the first length and the third length, and a shape of the face element is configured to accommodate the first length of the first row, the second length of the second row, and the third length of the third row.

Provided is a powder conveying system configured to prevent moisture adsorption to powder during powder conveyance. The powder conveying system comprises: a conveying path, a conveying device wherein the conveying device is a part of the conveying path or is connected with the conveying path; a measuring device wherein the measuring device is a part of the conveying path or is connected with the conveying path; a controlling device wherein the controlling device is a part of the conveying path or is connected with the conveying path; and a judging device wherein the judging device is connected with the measuring device and the controlling device.