Apparatus and methods for controlling the temperature of exhaust gases in a drum mixer
US6185842A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 1992 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | May 18, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2019/1095
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A inclined rotary drum mixer has flights for forming a veiling pattern of particles across the width of the drum for a substantial axial extent. The drum has a burner for flowing hot gases of combustion in heat transfer contact with the particle or aggregate veil. A diverter or interceptor is disposed in the drum for interrupting the cascading or veiling pattern to define a channel for flow of hot combustion gases free of heat transfer contact with the particles of the veiling pattern. By controlling the magnitude of the channel formed by the interceptor or diverter, the average exhaust gas temperature of the exhaust gases may be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.