Patents by Inventor Nobuya Azuma

Nobuya Azuma 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).

  • Ash fusing system, method of operating the system, and gasification fusing system for waste
    Patent number: 7040240
    Abstract: An ash melting system of the present invention includes a slagging combustion furnace (10) for melting ash into molten slag; and a slag separating apparatus (50) for bringing the molten slag (121) discharged from the slagging combustion furnace into contact with slag cooling water (152) to produce water-quenched slag (122), and separating the water-quenched slag from the slag cooling water. The ash melting system further includes a gas blowing means for blowing air or inert gas (132) between a slag discharge port (14) of the slagging combustion furnace and the surface of the slag cooling water.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: May 9, 2006
    Assignee: Ebara Corporation
    Inventors: Chikao Goke, Nobuya Azuma, Masaaki Irie, Kazuo Takano, Tetsuhisa Hirose, Kazuaki Watanabe
  • Fusion furnace, gasification fusion furnace, and method of processing waste
    Publication number: 20040237861
    Abstract: The slagging combustion furnace (10) of the present invention includes a combustion chamber (11, 12, 13) for combusting a combustible gas containing ash and melting the ash, and a slag discharge port (17) for discharging molten slag (20) produced by melting the ash. The slag discharge port (17) is formed by refractory material which is replaceable.
    Type: Application
    Filed: January 30, 2004
    Publication date: December 2, 2004
    Inventors: Nobuya Azuma, Shigeru Kosugi, Takashi Nakajima, Tetsuya Ando, Toshio Kojima
  • Ash fusing system, method of operating the system, and gasification fusing system for waste
    Publication number: 20040231243
    Abstract: An ash melting system of the present invention includes a slagging combustion furnace (10) for melting ash into molten slag; and a slag separating apparatus (50) for bringing the molten slag (121) discharged from the slagging combustion furnace into contact with slag cooling water (152) to produce water-quenched slag (122), and separating the water-quenched slag from the slag cooling water. The ash melting system further includes a gas blowing means for blowing air or inert gas (132) between a slag discharge port (14) of the slagging combustion furnace and the surface of the slag cooling water.
    Type: Application
    Filed: January 30, 2004
    Publication date: November 25, 2004
    Inventors: Chikao Goke, Nobuya Azuma, Masaaki Irie, Kazuo Takano, Tetsuhisa Hirose, Kazuaki Watanabe