The invention relates to a device (1) for conveying an operating material, comprising a filling chamber (3) with an inlet (4) for filling the filling chamber (3) with the operating material, a conveying section (6) for conveying the operating material to an outlet (5), a transition element (7) between the filling chamber (3) and the conveying section (6) which can be switched between an open position and a closed position. The operating material which is introduced via the inlet (4) in the filling chamber (3), in the open position of the transition element (7), can be transferred in the conveying section (6) by means of a gaseous transport medium, and the operating material can be discharged from the outlet (5) from the conveying section (6) by means of a gaseous transport medium.

The invention relates to a device (1) for conveying an operating material, comprising a filling chamber (3) with an inlet (4) for filling the filling chamber (3) with the operating material, a conveying section (6) for conveying the operating material to an outlet (5), a transition element (7) between the filling chamber (3) and the conveying section (6) which can be switched between an open position and a closed position. The operating material which is introduced via the inlet (4) in the filling chamber (3), in the open position of the transition element (7), can be transferred in the conveying section (6) by means of a gaseous transport medium, and the operating material can be discharged from the outlet (5) from the conveying section (6) by means of a gaseous transport medium.

A pneumatic conveyor is operable to convey fine material and includes a pressure vessel and a pneumatic injection port. The pressure vessel presents a chamber operable to receive fine material and to be selectively pressurized with air to pressurize and convey the fine material. The pressure vessel includes an inclined wall that extends upwardly relative to an outlet, with fine material in the chamber being collected by the inclined wall and urged toward the outlet. The injection port fluidly communicates with the chamber, with the injection port located adjacent the outlet to inject compressed air into the flow of pressurized fine material.

A pneumatic conveyor is operable to convey fine material and includes a pressure vessel and a pneumatic injection port. The pressure vessel presents a chamber operable to receive fine material and to be selectively pressurized with air to pressurize and convey the fine material. The pressure vessel includes an inclined wall that extends upwardly relative to an outlet, with fine material in the chamber being collected by the inclined wall and urged toward the outlet. The injection port fluidly communicates with the chamber, with the injection port located adjacent the outlet to inject compressed air into the flow of pressurized fine material.

A system for transporting hazardous particles includes a pneumatic conveyer for conveying the hazardous particles to an exit using a carrier gas; and an input mechanism for conveying the hazardous particles to the pneumatic conveyer. The input mechanism includes a tubular chamber for receiving the hazardous particles; an input pipe extending from the tubular chamber for conveying the hazardous particles into the tubular chamber; and an output pipe extending from a bottom of the tubular chamber. The output pipe includes an upper valve movable between a closed position and an open position, a middle valve movable between a closed position and an open position, and a lower valve. The upper valve and the middle valve, when in their respective closed positions, define a storage chamber for storing a portion of the hazardous particles. The upper valve in its open position allows the portion of the hazardous particles to enter the storage chamber, and the middle valve in its open position allows the portion of the hazardous particles in the storage chamber to flow to the lower valve. The lower valve is configured to convey the hazardous particles from the storage chamber to the pneumatic conveyer in a gradual fashion.

A system for transporting hazardous particles includes a pneumatic conveyer for conveying the hazardous particles to an exit using a carrier gas; and an input mechanism for conveying the hazardous particles to the pneumatic conveyer. The input mechanism includes a tubular chamber for receiving the hazardous particles; an input pipe extending from the tubular chamber for conveying the hazardous particles into the tubular chamber; and an output pipe extending from a bottom of the tubular chamber. The output pipe includes an upper valve movable between a closed position and an open position, a middle valve movable between a closed position and an open position, and a lower valve. The upper valve and the middle valve, when in their respective closed positions, define a storage chamber for storing a portion of the hazardous particles. The upper valve in its open position allows the portion of the hazardous particles to enter the storage chamber, and the middle valve in its open position allows the portion of the hazardous particles in the storage chamber to flow to the lower valve. The lower valve is configured to convey the hazardous particles from the storage chamber to the pneumatic conveyer in a gradual fashion.

An apparatus (1) for conveying polymer particles, particularly foamed polymer particles, from a first location (L1) to a second location (L2), the apparatus (1) comprising: a pressurizing unit (2) for generating a pressurized particle conveying fluid stream, particularly comprising polymer particles in a pressurized fluid, the pressurized particle conveying fluid stream having a first pressure level; a decompressing unit (3) for decompressing the pressurized particle conveying fluid stream from the first pressure level to generate a decompressed particle conveying fluid stream having a second pressure level, wherein the decompressing unit (3) comprises: a first chamber (6) for receiving the pressurized particle conveying fluid stream and a second chamber (7) surrounding the first chamber (6), wherein the first chamber (6) is delimited by a first wall structure (6.1) and the second chamber (7) is delimited by a second wall structure (7.1); wherein the first wall structure comprises (6.1) at least one first opening (6.1.1) through which an inner volume of the first chamber (6) is connected with an inner volume of the second chamber (7) and the second wall structure (7.1) comprises at least one second opening (7.1) through which the inner volume of the second chamber (7) is connectable or connected with at least one dampening device (8).

An apparatus (1) for conveying polymer particles, particularly foamed polymer particles, from a first location (L1) to a second location (L2), the apparatus (1) comprising: a pressurizing unit (2) for generating a pressurized particle conveying fluid stream, particularly comprising polymer particles in a pressurized fluid, the pressurized particle conveying fluid stream having a first pressure level; a decompressing unit (3) for decompressing the pressurized particle conveying fluid stream from the first pressure level to generate a decompressed particle conveying fluid stream having a second pressure level, wherein the decompressing unit (3) comprises: a first chamber (6) for receiving the pressurized particle conveying fluid stream and a second chamber (7) surrounding the first chamber (6), wherein the first chamber (6) is delimited by a first wall structure (6.1) and the second chamber (7) is delimited by a second wall structure (7.1); wherein the first wall structure comprises (6.1) at least one first opening (6.1.1) through which an inner volume of the first chamber (6) is connected with an inner volume of the second chamber (7) and the second wall structure (7.1) comprises at least one second opening (7.1) through which the inner volume of the second chamber (7) is connectable or connected with at least one dampening device (8).

A transfer pump for moving pellets of adhesive includes a pump housing with an adhesive inlet coupled to a supply hopper, an adhesive outlet coupled to an outlet hose, and an adhesive passage extending between the adhesive inlet and the adhesive outlet. A first air nozzle communicates with the adhesive passage adjacent the adhesive inlet and expels a first air jet that pushes pellets of adhesive through the adhesive passage. A second air nozzle communicates with the adhesive passage between the adhesive inlet and the adhesive outlet and expels a plurality of second air jets that draw pellets of adhesive through the adhesive passage by a vacuum force. The first and second air nozzles prevent clogging of pellets in the adhesive passage and enable movement of larger pellets than either air nozzle individually.

A transfer pump for moving pellets of adhesive includes a pump housing with an adhesive inlet coupled to a supply hopper, an adhesive outlet coupled to an outlet hose, and an adhesive passage extending between the adhesive inlet and the adhesive outlet. A first air nozzle communicates with the adhesive passage adjacent the adhesive inlet and expels a first air jet that pushes pellets of adhesive through the adhesive passage. A second air nozzle communicates with the adhesive passage between the adhesive inlet and the adhesive outlet and expels a plurality of second air jets that draw pellets of adhesive through the adhesive passage by a vacuum force. The first and second air nozzles prevent clogging of pellets in the adhesive passage and enable movement of larger pellets than either air nozzle individually.