Device for heat-treating bulk materials in feed screws and bulk material drying method
US6035546A · kind A · utility
4Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Oct 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2035/0822
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Device for the thermal treatment of bulk material with a screw conveyor transporting the bulk material which is equipped with infrared heat radiators in a tempering zone, characterized in that the infrared heat radiators are arranged in the screw conveyors in the central area of the rotation diameter. The device is also characterized in that the infrared heat radiators are mounted in a radiation-permeable screw shaft. The walls of a screw trough of the screw conveyor have an infrared-reflecting coating or are made of an infrared-reflecting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.