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 powder-dispensing device in the form of a dense-phase powder pump or of a powder injector is provided to deliver coating powder from a powder reservoir to a powder-spraying device. To make the spray coating operation easier for the customer and to be able to make it more cost-effective, without having to compromise on good coating quality and good coating efficiency, a control device is integrated in the powder-dispensing device or is connected, in particular directly, to the powder-dispensing device and is designed to establish at least one parameter that is characteristic of a spray coating procedure carried out with the powder-coating device.

A clean pneumatic conveying shield includes a shield body used for picking up an expanded material from an expanded material discharge port and pneumatically conveying the expanded material to the next process and provided with a hollow closed inner cavity, an outlet pipeline positioned in the middle of the top of the shield body and communicated with the inner cavity of the shield, and at least 2 inlet pipelines positioned at the top of the shield body, arranged around the outlet pipeline and communicated with the inner cavity of the shield. The shield body is provided with a splitter plate corresponding to each inlet pipeline and capable of rotating, an upper partition plate positioned above each splitter plate and a lower partition plate positioned below each splitter plate.

A clean pneumatic conveying shield includes a shield body used for picking up an expanded material from an expanded material discharge port and pneumatically conveying the expanded material to the next process and provided with a hollow closed inner cavity, an outlet pipeline positioned in the middle of the top of the shield body and communicated with the inner cavity of the shield, and at least 2 inlet pipelines positioned at the top of the shield body, arranged around the outlet pipeline and communicated with the inner cavity of the shield. The shield body is provided with a splitter plate corresponding to each inlet pipeline and capable of rotating, an upper partition plate positioned above each splitter plate and a lower partition plate positioned below each splitter plate.

A method for temporary storage of granular material in a receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

A method for temporary storage of granular material in a receiver having a horizontally elongated chamber within a housing, the chamber having a convex triangular cross-section and a dump flap defining a bottom vertex of the triangular cross-section, with a horizontal air/vacuum resin material inlet connecting to the chamber, and a horizontal air/vacuum outlet leading from and connected to the chamber.

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 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 powder-dispensing device in the form of a dense-phase powder pump or of a powder injector is provided to deliver coating powder from a powder reservoir to a powder-spraying device. To make the spray coating operation easier for the customer and to be able to make it more cost-effective, without having to compromise on good coating quality and good coating efficiency, a control device is integrated in the powder-dispensing device or is connected, in particular directly, to the powder-dispensing device and is designed to establish at least one parameter that is characteristic of a spray coating procedure carried out with the powder-coating device.

A pneumatic conveyance system includes at least one filtration component and a cage assembly disposed within the filtration component. The cage assembly may include a first cage, a second cage, and an actuator, where the actuator may be configured to move the first cage relative to the second cage and cause at least a portion of the first cage to rub against a filtration component within the pneumatic conveyance system. A method of dislodging material buildup within a pneumatic conveyance system includes causing a first cage of a cage assembly to move relative to a second cage within a filtration component.