Patents by Inventor Wouter Bernd Ewalts

Wouter Bernd Ewalts 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).

  • Dry dust removal from furnace gas
    Patent number: 11397051
    Abstract: A process and a plant for cleaning furnace gas includes utilizing one or more sensors to continuously monitor one or more parameters indicative for an expected temperature peak in the blast furnace gas flow. The gas flow is then passed through a conditioning tower. In case the measured parameter exceeds a predefined limit value, a coolant, such as water, is sprayed into the blast furnace gas flow in the conditioning tower. Subsequently the flow of blast furnace gas passes one or more filter stations.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: July 26, 2022
    Assignee: DANIELI CORUS B.V.
    Inventors: Wouter Bernd Ewalts, Pieter Dirk Klut
  • DRY DUST REMOVAL FROM FURNACE GAS
    Publication number: 20200240711
    Abstract: A process and a plant for cleaning furnace gas includes utilizing one or more sensors to continuously monitor one or more parameters indicative for an expected temperature peak in the blast furnace gas flow. The gas flow is then passed through a conditioning tower. In case the measured parameter exceeds a predefined limit value, a coolant, such as water, is sprayed into the blast furnace gas flow in the conditioning tower. Subsequently the flow of blast furnace gas passes one or more filter stations.
    Type: Application
    Filed: October 14, 2016
    Publication date: July 30, 2020
    Inventors: Wouter Bernd Ewalts, Pieter Dirk Klut
  • Process and device for treating furnace gas
    Patent number: 10518216
    Abstract: A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel. The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: December 31, 2019
    Assignee: DANIELI CORUS B.V.
    Inventors: Wouter Bernd Ewalts, Pieter Dirk Klut
  • PROCESS AND DEVICE FOR TREATING FURNACE GAS
    Publication number: 20180311613
    Abstract: A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 1, 2018
    Inventors: Wouter Bernd Ewalts, Pieter Dirk Klut
  • PROCESS AND FILTER DEVICE FOR CLEANING FURNACE GAS
    Publication number: 20180304185
    Abstract: Process and device for cleaning furnace gas includes flowing in a main flow direction (A) the furnace gas passes an array of bag filters. Filtered furnace gas having passed the filter bags, is partly returned via one or more nozzles which are moved along downstream ends of the bag filters. Each bag filter is passed at least once by at least one nozzle during a cycle. A nozzle passing a bag filter blows filtered furnace gas in a backflow direction (B) through said bag filter. The backflow direction is opposite to the main flow direction.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 25, 2018
    Inventors: Wouter Bernd Ewalts, Pieter Dirk Klut