Patent · US Active

Device for sifting granular material

US9636712B2 · kind B2 · utility

0Cited by

16References

22Claims

0Family size

Assignee

MASCHINENFABRIK KOEPPERN GMBH & CO. KG · DE

Inventors

Harald Guenter · Freiberg, DE
Thomas Hanstein · Freiberg, DE
Eberhard W. Neumann · Ennigerloh, DE
Eggert DE WELDIGE · Neviges, DE

Key dates

Filing date	Nov 23, 2012
Grant date	May 2, 2017
Priority date	—
Expiry date	Oct 16, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07B9/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for separating granular material into at least three fractions a static cross-flow sifter and a dynamic sifter. The static has several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet. The dynamic sifter has a rod basket rotatable about a vertical axis, a housing containing the basket, and at least one medium-particle outlet and one fine-particle outlet. The housing of the static sifter merges directly horizontally and laterally into the housing of the dynamic sifter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.