Patents by Inventor Helmut BIEHL

Helmut BIEHL has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Combustion of the CO in secondary metallurgical exhaust gas, with calorific value control and volume flow control
    Patent number: 12196418
    Abstract: A method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes includes conditioning the exhaust gas prior to post-combustion by metering a combustion gas and/or one additional gas in feedback-controlled fashion. The feedback control depends on the composition of the exhaust gas dependent on the exhaust gas volume flow. A device for post-combustion of exhaust gas during vacuum treatment of liquid steel comprises a flare stack at an exhaust outlet, means for feeding combustion gas to the flare stack, means for feeding an inert gas into the exhaust gas channel of the vacuum pump, means for ascertaining the exhaust gas volume flow and/or for measuring the exhaust gas velocity within the exhaust gas channel, means for analyzing the exhaust gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or the inert gas dependent on the exhaust gas composition.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: January 14, 2025
    Assignee: SMS group GmbH
    Inventors: Volker Wiegmann, Frank Dorstewitz, Andreas Kemminger, Helmut Biehl
  • Combustion of the CO in secondary metallurgical exhaust gas, with calorific value control and volume flow control
    Publication number: 20220412554
    Abstract: A method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes includes conditioning the exhaust gas prior to post-combustion by metering a combustion gas and/or one additional gas in feedback-controlled fashion. The feedback control depends on the composition of the exhaust gas dependent on the exhaust gas volume flow. A device for post-combustion of exhaust gas during vacuum treatment of liquid steel comprises a flare stack at an exhaust outlet, means for feeding combustion gas to the flare stack, means for feeding an inert gas into the exhaust gas channel of the vacuum pump, means for ascertaining the exhaust gas volume flow and/or for measuring the exhaust gas velocity within the exhaust gas channel, means for analyzing the exhaust gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or the inert gas dependent on the exhaust gas composition.
    Type: Application
    Filed: November 23, 2020
    Publication date: December 29, 2022
    Applicant: SMS group GmbH
    Inventors: Volker WIEGMANN, Frank DORSTEWITZ, Andreas KEMMINGER, Helmut BIEHL