Patent · US Active

Method for generating finest particles and jet mill therefor as well as classifier and operating method thereof

US8074907B2 · kind B2 · utility

1Cited by

1References

14Claims

0Family size

Assignees

Roland Nied · DE
Netzsch-Condux Mahltechnik GmbH · DE

Inventors

Roland Nied · Neusäß, DE
Hermann Sickel · Karlstadt, DE

Key dates

Filing date	Apr 16, 2009
Grant date	Dec 13, 2011
Priority date	—
Expiry date	Apr 16, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07B11/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and jet mill apparatus for generating fine particles by means of a jet mill with an integrated dynamic air classifier including a classifying wheel classifying wheel shaft and classifier housing, wherein between the classifying wheel and classifier housing a classifier gap is formed and between the classifying wheel shaft and the classifier housing a shaft passage is formed, wherein gap flushing of classifier gap or shaft passage takes place with compressed gases of low energy content, and wherein comminution jet inlets are present which are charged with energy-rich superheated steam. Through the invention a dynamic air classifier explained above and a corresponding operating method therefor are additionally created.

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