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.

A delivery pipe for transport of solids, having a double-walled pipe body having an inner pipe and a metallic outer pipe and at least one pipe collar arranged on an end. The delivery pipe is distinguished in that the inner pipe is made of a solid plastic material and a wear ring is inserted in the pipe collar, the inner diameter of which ring is less than or equal to the inner diameter of the inner pipe.

Methods and system for managing airflow across pipe or tube connections are provided. In some embodiments, methods and systems are provided that are well suited for use in pneumatic tube delivery systems having connections between tubes of different diameter. Airflow sources and management devices are provided to accommodate pressure changes and energy changes associated with pipe or tube expansions and contractions.

Methods and system for managing airflow across pipe or tube connections are provided. In some embodiments, methods and systems are provided that are well suited for use in pneumatic tube delivery systems having connections between tubes of different diameter. Airflow sources and management devices are provided to accommodate pressure changes and energy changes associated with pipe or tube expansions and contractions.

A transport device includes a transport pipe for transporting a material to be transported having at least one of a sheet piece, a fiber, and a powder, and a blower for generating an air flow in the transport pipe, the transport device transports the material to be transported by the air flow, in which the transport pipe has an introduction port into which the material to be transported is introduced, the air flow has a velocity difference in a direction orthogonal to a direction of the air flow in the transport pipe, and the introduction port is provided on a side where a velocity of the air flow is lower.

A transport device includes a transport pipe for transporting a material to be transported having at least one of a sheet piece, a fiber, and a powder, and a blower for generating an air flow in the transport pipe, the transport device transports the material to be transported by the air flow, in which the transport pipe has an introduction port into which the material to be transported is introduced, the air flow has a velocity difference in a direction orthogonal to a direction of the air flow in the transport pipe, and the introduction port is provided on a side where a velocity of the air flow is lower.

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.

A conveying system for pneumatically conveying plastic granulate comprises a feed location, at which the plastic granulate is fed into a conveying line by pressurized conveying gas, a target location, in conveying connection with the feed location, for moisture contained in the conveying gas, and a condensation tempering unit, which is arranged along a section or sections of the conveying line, for making the conveying line such temperature to at least partial condensation of moisture contained in the conveying gas to form a sliding film on an internal wall of the conveying line.

A method to make a tubular element to transfer abrasive materials such as concrete, inert materials or suchlike, where the tubular element includes an external tubular component made of steel and an internal tubular component, coaxial to the external tubular component, where the internal tubular component is made of chromium carbide, or other similar material resistant to wear.

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.