The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1984
Filed:
Oct. 21, 1982
Gunter Dibowski, Essen, DE;
Helmut Grommes, Duisburg, DE;
Deutsche Babcock Werke Aktiengesellschaft, Oberhausen, DE;
Abstract
A sealing arrangement between rotating and stationary parts of grinding mills, particularly those operated at pressure above atmospheric. A barrier air chamber is connected through a gap with the interior space of the mill. The flow direction of barrier air to the chamber is directed downwardly within the gap. The barrier air has a pressure exceeding the pressure of carrier gas for preventing passage of the carrier gas together with coal dust toward the outside. The width of the gap is adjustable, and the flow direction of the barrier air may also be oblique downwards within the gap. The gap at the same time, may be formed by an obliquely extending guide portion.