Roller for a roller hearth furnace

Patent metadata

Field	Value
Publication number	US-11867463-B2
Application number	US-201917264550-A
Country	US
Kind code	B2
Filing date	Jul 15, 2019
Priority date	Jul 30, 2018
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

A roller for a roller hearth furnace, the roller including a water-cooled, rotatably mounted carrying axle on which a plurality of support rings are arranged at a spacing from one another. In the axial region between and next to the support rings, the carrying axle is provided with insulation composed of a fiber material and configured with protection of the outer circumference of the fiber material from the environment. In the case of insulation constructed from ring-shaped punched parts, the insulation arranged in the axial region between and next to the support rings is composed of circular or ring-shaped punched fiber parts. The protection is configured as ring-shaped insulating disks composed of a more resistant material than that of the punched fiber parts, and at least one punched fiber part is provided in each case between two insulating disks.

First claim

The invention claimed is:

1. A roller for a roller hearth furnace, comprising: a water-cooled, rotatably mounted carrying axle; a plurality of support rings arranged on the carrying axle at a spacing from one another; insulation provided on the carrying axle in axial regions between and next to the support rings, the insulation being composed of a fiber material; and protective means for protecting an outer circumference of the fiber material from the environment, wherein the insulation is composed of circular or ring-shaped punched fiber parts, wherein the protective means is configured as ring-shaped insulating disks composed of a more resistant material than the material of the punched fiber parts, wherein at least one of the punched fiber parts is provided in each case axially between two of the insulating disks.

2. The roller according to claim 1 , wherein the insulating disks are composed of a more resistant fiber material than the material of the punched fiber parts.

3. The roller according to claim 1 , wherein the insulating disks have a greater width than the punched fiber parts.

Assignees

• Sms Group Gmbh

Inventors

• Kintscher Björn
• Hoen Karl
• Pieper Markus

Classifications

• F27D3/026 Primary

  transport or conveyor rolls for furnaces; roller rails · CPC title

• F27B9/2407 Primary

  the conveyor being constituted by rollers (roller hearth furnace) · CPC title

• C21D9/46

  for sheet metals · CPC title

• F27B2009/3066

  Cooling the under-structure of the kiln, e.g. under the cars · CPC title

• F27D2009/0013

  the fluid being water · CPC title