Patent · US Expired

Method and apparatus for the common grinding of two or more brittle materials having different grinding properties

US4592512A · kind A · utility

6Cited by

2References

5Claims

0Family size

Assignee

Klockner-Humboldt-Deutz AG · DE

Inventors

Wolfgang Grigel · Lohmar, DE
Hans Kellerwessel · Aachen, DE
Raimund Zisselmar · Lechenich, DE

Key dates

Filing date	Mar 20, 1984
Grant date	Jun 3, 1986
Priority date	—
Expiry date	Mar 20, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C21/005
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A roller crusher for receiving a harder to grind material, means mixing the harder to grind material with an easier to grind material and delivering the mixed materials to a ball mill for common grinding, separating the remaining coarse particles from material received by the grinder by a sieve or a cyclone, and recirculating the remaining the coarse particles to the ball mill.

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