Patent ID: 7866977
Filing Date: 2011-01-11
Classification: F27B

Abstract:
1. A rotary tube for use as part of a rotary tubular kiln for the production of activated charcoal, wherein said rotary tube includes an outer wall and is provided on said outer wall with a reinforcing element constructed and arranged for peripherally reinforcing the rotary tube in an operating state, the reinforcing element extending around said outer wall for substantially its entire periphery, except for a clearance gap for receiving a fastening portion of a mixing element, and being welded to the rotary tube via a welded joint, wherein the rotary tube further comprises mixing elements arranged in the inner space of the rotary tube for the circulation and/or intermixing of a batch, the mixing elements penetrating radially through the rotary tube and being welded to the outer wall, the rotary tube having perforations for receiving fastening portions of the mixing elements, the fastening portions being welded to the outer wall, and wherein the reinforcing element is connected to the fastening portion of a corresponding mixing element, which projects through the outer wall, the connection of the reinforcing element to the fastening portion being realized by means of a welded joint.