Title:
COUNTERFLOW HEAT EXCHANGER FOR DUST-LADEN EXHAUST GAS OF METALLURGICAL INSTALLATIONS
Document Type and Number:
WIPO Patent Application WO/2015/144651
Kind Code:
A3
Abstract:
The invention relates to a method for cooling dust-laden exhaust gas from a metallurgical installation. The problem addressed by the invention is that of creating a method and a device for cooling dust-laden hot exhaust gas from a metallurgical installation by means of indirect heat transfer. The problem is solved by means of a method in which the exhaust gas is cooled by a cooling gas by means of indirect heat transfer and the exhaust gas is fed to the cooling process at a temperature above 650°C. The flow direction of the cooling gas is changed at least once. Preferably, the flow direction is reversed. The exhaust gas is cooled in accordance with the counterflow principle.
Inventors:
SCHMIEDBERGER MANFRED (AT)
STEINER DIETMAR (AT)
STEINER DIETMAR (AT)
Application Number:
PCT/EP2015/056171
Publication Date:
November 19, 2015
Filing Date:
March 24, 2015
Export Citation:
Assignee:
PRIMETALS TECHNOLOGIES AUSTRIA GMBH (AT)
International Classes:
F28D7/00; F28D7/06; F28D7/10; F28D7/16; F28F19/00; F28G7/00
Domestic Patent References:
| WO1985002671A1 | 1985-06-20 |
Foreign References:
| US3842904A | 1974-10-22 | |||
| DE19801753A1 | 1999-07-22 | |||
| GB1001095A | 1965-08-11 | |||
| US1378715A | 1921-05-17 |
Attorney, Agent or Firm:
HEDENETZ, Alexander (c/o Siemens AktiengesellschaftPostfach 22 16 34, München, DE)
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