Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.

Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.

Assemblies and methods to extract materials from a retention collection may include a vacuum source including a series of vacuum generators configured to generate a vacuum flow to create a suction between the retention collection and a material collector for extraction of the material from the retention collection and transfer to the material collector. The suction generated by the vacuum flow will be sufficient to draw-in and convey the material in liquid, semi-solid and substantially solid states from the retention collection along a collection conduit and into the material collector for disposal. The vacuum generation assembly may include a filter and sound attenuation chamber connected to the vacuum source configured to receive and filter a vacuum exhaust fluid/air flow portion of the vacuum flow and to attenuate sound generated by the vacuum source.

A fixed radius conveyor belt system of the type assembled from a plurality of substantially identical belt modules is provided. The fixed radius conveyor belt system is assembled from a plurality of belt modules, each having a leading edge and a trailing edge, and an inner side and an outer side and with a modular belt body between therebetween, and where a plurality of eye parts extend from the leading and trailing edges and are off-set on one edge relative to the other edge, such that two adjacent like modular belt links are pushed together. The leading edge and the trailing edge are arranged with a mutual angle ?, such that an axis through the leading axis will intercept an axis through the trailing edge in a turning center, such that eye parts further away from the turning center will have curved sides following ever larger circle radiuses.

Assemblies, apparatuses, systems, and method to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source including a plurality of vacuum generators. Each of the plurality of vacuum generators may be positioned to cause a vacuum flow between the source of the material and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber connected to the vacuum source. The sound attenuation chamber may include an attenuation housing at least partially defining a chamber interior volume being positioned to receive at least a portion of the vacuum flow from the vacuum source and attenuate sound generated by the vacuum source.

A conveyor flight for a chain comprising at least two spaced apart links, and two side plates that connect the links, with each side plate including two spaced apart extension pins extending from the side plate. The flight comprises a metal support, and the metal support includes two spaced apart cylindrical portions adapted to receive the two spaced apart extension pins. The flight also includes a flexible casing surrounding the metal support.

A conveyor flight for a chain comprising at least two spaced apart links, and two side plates that connect the links, with each side plate including two spaced apart extension pins extending from the side plate. The flight comprises a metal support, and the metal support includes two spaced apart cylindrical portions adapted to receive the two spaced apart extension pins. The flight also includes a flexible casing surrounding the metal support.

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 polyolefin particles, particularly foamed polyolefin 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 polyolefin 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).

Assemblies, apparatuses, and methods to extract or convey a material from a source of the material may include a vacuum generation and sound attenuation assembly and a material receiver to enhance conveyance the material from the source of the material. The vacuum generation and sound attenuation assembly may include a vacuum source positioned to cause a vacuum flow between the source of the material, the material receiver, and the vacuum generation and sound attenuation assembly. The vacuum generation and sound attenuation assembly may further include a sound attenuation chamber positioned to receive at least a portion of the vacuum flow from, and attenuate sound generated by, the vacuum source. The material receiver may be positioned an elevated location relative to a source of the material and be capable of staging and metering the conveyance of material when moving material at the top of a structure, such as a refinery tower.