Patent · US Expired

Circulation-type grinding system for grinding brittle material

US5114131A · kind A · utility

6Cited by

6References

8Claims

0Family size

Assignee

Kloeckner-Humboldt-Deutz AG · DE

Inventors

Siegfried Strasser · Much, DE
Franz Goeddecke · Leverkusen, DE
Albrecht Wolter · Bremen, DE

Key dates

Filing date	Aug 1, 1990
Grant date	May 19, 1992
Priority date	—
Expiry date	Aug 1, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A grinding system for grinding brittle material such as used in the manufacture of cement including a high pressure roller press operated with high pressing forces to form interparticle crushing with incipient cracks in the interior of the particles including recirculating a portion of the material delivered from the press to a sifter locating the sifter directly above the nip and delivering the sifted material downwardly into the nip retaining the structural height of the system low and delivering fresh stock laterally directly into the nip of the roller press to merge with the sifted material entering directly into the nip of the roller press.

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