Discretizers that exhibit improved solid additive laden fluid flow emanating from the discretizers and methods of using same, particularly for making fibrous structures are provided.

A modular system for performing a plurality of crushing and grinding processes, including: a plurality of interchangeable milling heads, each interchangeable milling head having a milling mechanism configured to perform one of the plurality of crushing and grinding processes when driven; a driving unit including a driving motor having a range of motor characteristics; and a connecting unit configured to functionally connect one of the interchangeable milling heads to the driving motor such that, when connected, the one of the plurality of interchangeable milling heads can perform the one of the plurality of crushing and grinding processes. Each of the plurality of interchangeable milling heads further includes an adaptor unit configured to connect the milling head to the connecting unit and for converting the range of motor characteristics of the driving motor into the milling driving characteristics of the connected interchangeable milling heads.

A modular system for performing a plurality of crushing and grinding processes, including: a plurality of interchangeable milling heads, each interchangeable milling head having a milling mechanism configured to perform one of the plurality of crushing and grinding processes when driven; a driving unit including a driving motor having a range of motor characteristics; and a connecting unit configured to functionally connect one of the interchangeable milling heads to the driving motor such that, when connected, the one of the plurality of interchangeable milling heads can perform the one of the plurality of crushing and grinding processes. Each of the plurality of interchangeable milling heads further includes an adaptor unit configured to connect the milling head to the connecting unit and for converting the range of motor characteristics of the driving motor into the milling driving characteristics of the connected interchangeable milling heads.

A vacuum grinding system having multiple elements connected in series. The elements include an input chamber next to the system input, which chamber can be fluidically connected to a vacuum pump; a grinding chamber which is arranged downstream of the input chamber and which can be fluidically connected to a vacuum pump; and an output chamber, downstream of the grinding chamber and next to the output system, which output chamber can also be fluidically connected to a vacuum pump.

A vacuum grinding system having multiple elements connected in series. The elements include an input chamber next to the system input, which chamber can be fluidically connected to a vacuum pump; a grinding chamber which is arranged downstream of the input chamber and which can be fluidically connected to a vacuum pump; and an output chamber, downstream of the grinding chamber and next to the output system, which output chamber can also be fluidically connected to a vacuum pump.

A distributor plate assembly for a vertical shaft impact (VSI) crusher is optimized for abrasion wear resistance. The distributor plate includes a plurality of plate segments, each segment being formed from a main body of ductile iron alloy having cemented carbide granules embedded within the iron alloy.

A crushing apparatus includes a tank including a first aperture and a second aperture, a first blower around the first aperture, a grinder disposed within the tank, a separating device including a first hole connected to the second aperture, and a second hole, and a second blower disposed around the second hole.

A crushing apparatus includes a tank including a first aperture and a second aperture, a first blower around the first aperture, a grinder disposed within the tank, a separating device including a first hole connected to the second aperture, and a second hole, and a second blower disposed around the second hole.

A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.

A system is disclosed. The system includes an impact processor comprising an inlet and an outlet, a secondary classifier comprising an inlet and an outlet, the secondary classifier being downstream of and coupled to the impact processor, a recirculation mixer valve downstream of and coupled to the outlet of the secondary classifier, and a recirculation line coupling the outlet of the first secondary classifier to the inlet of the impact processor.