A bulk material handling method includes: a) receiving and pneumatically conveying bulk material via pressurized dilute phase, dense phase, and/or hybrid dilute/dense phase, and/or vacuum drawn conveyance into bulk material containers (a112, c276); b) storing the bulk material in the containers (a112, c276); c) dispensing the bulk material from the containers (a112, c276) into a bulk material transporter (b100); d) transporting the transporter (b100) from the containers to a bulk material transmitting vessel (d240); and e) discharging the bulk material from the transporter (b100) into the transmitting vessel (d240), including releasing the bulk material from the transporter (b100) into the transmitting vessel (d240), and pneumatically transmitting the bulk material out of the transmitting vessel (d240) to downstream bulk material processing equipment. Discharging also may include rejecting the bulk material from the transporter (b100) to a waste container (W). A related system, subsystems, and apparatuses are also disclosed.

A conveying device for use in the field of plastics has a frame and a weighing cell connected to the frame. A separating unit is suspended from the weighing cell. A first coupling is connected to the frame and connects a vacuum source to the separating unit. A second coupling is connected to the frame and connects a conveying line for goods to be conveyed to the separating unit. At least one of the first coupling and the second coupling has a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact. At least one sealing element is provided to seal the region of no contact between the first and the second coupling parts.

A conveying device for use in the field of plastics has a frame and a weighing cell connected to the frame. A separating unit is suspended from the weighing cell. A first coupling is connected to the frame and connects a vacuum source to the separating unit. A second coupling is connected to the frame and connects a conveying line for goods to be conveyed to the separating unit. At least one of the first coupling and the second coupling has a first coupling part connected to the separating unit and a second coupling part connected to the frame, wherein the first and the second coupling parts do not contact each other in a region of no contact. At least one sealing element is provided to seal the region of no contact between the first and the second coupling parts.

A sub-quantity scale and method for transferring a sub-quantity are provided. The scale includes a product feeding device, a product distributing device and a plurality of sub-quantity storage containers for transferring the sub-quantities to a weighing device, from which the sub-quantities pass into a packaging container. The product is fed into the sub-quantity storage containers by using vibration conveyor devices, each of which has a conveying channel and is assigned to one of the sub-quantity storage containers. A nozzle device subjects a conveying surface of the conveying channel to an air flow oriented in the conveying direction. The nozzle device is arranged in a transfer area between the product distributing device and the conveying channel.

An addition system for introducing particulate material into an industrial process is disclosed. The addition system comprises a vessel for holding the particulate material, a weighing device, piping, a controller, and a frame to support the piping. The piping comprises a first valve for transferring the particulate material to the industrial process, and a second valve for transferring a first stream of pressurized gas from a source of pressurized gas to the vessel. The vessel comprises a quick-release hatch located on the top of the vessel.