Patent · US Expired

Two-roll press for pressure treatment of granular material

US5911371A · kind A · utility

0Cited by

7References

12Claims

0Family size

Assignee

Deutz Aktiengesellschaft, Patente und Marken · DE

Inventor

Siegfried Strasser · Much, DE

Key dates

Filing date	Sep 12, 1997
Grant date	Jun 15, 1999
Priority date	—
Expiry date	Sep 12, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C4/42
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In two-roll machines for high-pressure disintegration of granular material, in which typically only one of the two rolls is motor driven, while the other roll is driven by means of friction via the granular material pressed in the roll gap, and thus operates as a drag roll, it is proposed to equip the drag roll with a separate, smaller drive mechanism including a separate smaller drive motor. This drive is thereby dimensioned in such a way that the startup of the drag roll is ensured and a drop in revolutions per minute of the drag roll is avoided. Alternatively, this separate drive is enlarged in such a way that it can transmit 10% to 40%, preferably 20%, of the total required drive power.

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