Patent · US Active

Rotary tubular kiln useful for the production of activated carbon and having a modified geometry of the rotary tube

US7811083B2 · kind B2 · utility

6Cited by

12References

16Claims

0Family size

Assignee

Blucher GmbH · DE

Inventors

Bertram Böhringer · Erkrath, DE
Jann-Michael Giebelhausen · Erkrath, DE
Sven Fichtner · Erkrath, DE

Key dates

Filing date	Sep 18, 2007
Grant date	Oct 12, 2010
Priority date	—
Expiry date	Jul 31, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23G2203/208
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

The invention has as subject matter a rotary tube, especially for a rotary tube kiln for the production of carbon, with several mixing elements arranged in the inner space of the rotary tube for a thorough mixing of a charged material. The rotary tube comprises a transitional area from a smaller inside cross section to a larger inside cross section of the rotary tube. The mixing elements are formed in the transitional area and/or are arranged in such a manner that the charged material is transported during operation by the mixing elements toward the smaller inside cross section. The result is an excellent thorough axial mixing and blending of the charged material, which results in an increased homogeneity of the activated carbon produced.

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