Rotary tubular kiln for the production of activated carbon
US7172414B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B7/162
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a rotary tube (1), in particular for a rotary tubular kiln for the production of activated carbon, said rotary tube (1) having a plurality of mixing elements (3), in particular metal turning plates, said mixing elements (3) being arranged in the interior (2) of the rotary tube (1) for circulating and/or mixing the charge material (4). The rotary tube (1) has apertures (5) for receiving securing sections (6) of the mixing elements (3), the securing sections (6) being welded to the outer side of the rotary tube (1). This prevents the welding location being exposed to the aggressive conditions in the interior (2) of the rotary tube (1) in the operating state during production of activated carbon, and it is readily possible for the welding location to be inspected from the outside, and for maintenance and repair to be carried out as necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.