Patent · US Expired

Method and device for heating a low temperature carbonization drum and low temperature carbonization/combustion plant having the device

US5935387A · kind A · utility

2Cited by

4References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Herbert Tratz · Ottensoos, DE
Reiner Engelhardt · Effeltrich, DE
Georg Losel · Uttenreuth, DE

Key dates

Filing date	Aug 17, 1994
Grant date	Aug 10, 1999
Priority date	—
Expiry date	Aug 17, 2014

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23G2201/303
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method for heating a low temperature carbonization drum includes generating a low temperature carbonization gas in the drum; combusting a partial flow of the low temperature carbonization gas for generating a heating gas; conducting the heating gas in a heating gas circuit; preheating the cooled heating gas flowing out of the drum; and then returning a controllable partial flow of the cooled heating gas to the drum while re-admixing the controllable partial flow with the heating gas. A device for heating the low temperature carbonization drum includes a heating gas circuit having an inflow line and an outflow line connected to the drum generating low temperature carbonization gas; the heating gas circuit having a combustion chamber for receiving a partial flow of the low temperature carbonization gas from the drum and generating a heating gas to be delivered to the drum; and the heating gas circuit having a heat exchanger connected upstream of the combustion chamber for preheating the heating gas being cooled in the drum. A low temperature carbonization/combustion plant includes a combustion chamber of a combustion system receiving a remaining flow of the low temperature carboniz…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.