Patent · US Expired

Two-roller machine and method for pressure treatment of granular material

US5876648A · kind A · utility

6Cited by

11References

10Claims

0Family size

Assignee

DEUTZ AKTIENGESELLSCHAFT · DE

Inventors

Siegfried Strasser · Much, DE
Axel Schultz · Cologne, DE

Key dates

Filing date	Aug 14, 1997
Grant date	Mar 2, 1999
Priority date	—
Expiry date	Aug 14, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C23/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In order to assure that an adequately small delivery granulation is offered to the nip of a two-roller machine, preferably a high-pressure roller press for interparticle crushing, namely for an optimum draw-in of the granular material, it is inventively proposed that a sieve means to be arranged in the product delivery shaft of the two-roller machine and that the oversized sieve particles be comminuted with a crushing roller that is likewise arranged in the product delivery shaft and that the comminuted particles then be presented to the high pressure nip for further interparticle crushing.

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