Patent · US Active

Method and devices for detaching a charge stuck to the inner wall of a grinding pipe

US8276837B2 · kind B2 · utility

2Cited by

8References

23Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Norbert Becker · Stockach, DE
Stefan Smits · Hemhofen, DE
Kurt Tischler · Erlangen, DE

Key dates

Filing date	Aug 2, 2011
Grant date	Oct 2, 2012
Priority date	—
Expiry date	Aug 2, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/53687
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a method for detaching a charge (5) which is stuck to the inner wall of a grinding pipe (1), the grinding pipe (1) is rotated in a targeted manner such that the charge (5) that is stuck is removed from the inner wall of the grinding pipe (1) as a result of multiple modification of the rotational speed of the grinding pipe (1) and, optionally, as a result of abrupt braking of the grinding pipe (1). Generally speaking, the material-dependent maximum angle of rotation F of the grinding pipe is not exceeded in order to avoid the charge that is stuck from falling in an uncontrolled manner. The invention supercedes labor-intensive and protracted methods for detaching such charges (5) since the tasks can be carried out by the same motor of the drive device (2) which is used to drive the grinding pipe (1) during the grinding process.

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