Circulating grinding plant comprising a mill and a sifter

Details Circulating grinding plant comprising a mill and a sifter Circulating grinding plant comprising a mill and a sifter

2007-11-27

2007-11-27

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

With separation or classification of material

C209S143000, C241S080000, C241S235000

Reexamination Certificate

active

10514622

ABSTRACT:
The aim of the invention is to create a compact circulating grinding plant comprising a product bed comminution roller mill or roller press and a sifter device, in which the problem of mechanically transporting the grinding product that is directed through the circuit is minimized. Said aim is achieved by a circulating grinding plant in which a static cascade sifter is disposed below the gap of the roller press while a subsequent sifter, particularly a dynamic rod basket sifter, is disposed above said roller press. The sifting product discharge area of the static cascade sifter is connected to the sifting air and sifting product inlet of the subsequent sifter via an ascending duct which pneumatically conveys the product.

REFERENCES:
patent: 4853112 (1989-08-01), Brown
patent: 5005770 (1991-04-01), Suessegger
patent: 6415998 (2002-07-01), Splinter
patent: 6557790 (2003-05-01), Splinter
patent: WO 99/37404 (1999-07-01), None

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