Patents by Inventor Keiichi Mashio

Keiichi Mashio 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).

  • Patent number: 10712000
    Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 14, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
  • Patent number: 10562072
    Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 18, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
  • Publication number: 20190178492
    Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 13, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI
  • Publication number: 20190009303
    Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.
    Type: Application
    Filed: December 2, 2016
    Publication date: January 10, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI
  • Patent number: 8653394
    Abstract: The present invention provides an electrostatic separation method and an electrostatic separation device each of which, even in a case where the concentration of unburned components of coal ash produced by a boiler of a coal-fired power plant is as high as 15% to 30%, can stably separate the ash without generating spark, reuse the high unburned component ash as fuel, and reuse the low unburned component ash as, for example, an auxiliary material of concrete. The electrostatic separation device may include a substantially flat plate lower side electrode and an upper side electrode including a high dielectric resin element. A separation zone is formed in a region of electrostatic force between the lower side electrode and the upper side electrode, with one of the electrodes having positive polarity and the other having negative polarity. Unburned carbon ash in the coal ash supplied to the separation zone is separated.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: February 18, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Noboru Takikawa, Keiichi Mashio, Manabu Masamoto, Kouji Fukumoto, Yasuhiro Mayumi
  • Publication number: 20120043261
    Abstract: The present invention provides an electrostatic separation method and an electrostatic separation device each of which, even in a case where the concentration of unburned components of coal ash produced by a boiler of a coal-fired power plant is as high as 15% to 30%, can stably separate the ash without generating spark, reuse the high unburned component ash as fuel, and reuse the low unburned component ash as, for example, an auxiliary material of concrete. The electrostatic separation device may include a substantially flat plate lower side electrode and an upper side electrode including a high dielectric resin element. A separation zone is formed in a region of electrostatic force between the lower side electrode and the upper side electrode, with one of the electrodes having positive polarity and the other having negative polarity. Unburned carbon ash in the coal ash supplied to the separation zone is separated.
    Type: Application
    Filed: October 27, 2011
    Publication date: February 23, 2012
    Applicant: KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA
    Inventors: Noboru Takikawa, Keiichi Mashio, Manabu Masamoto, Kouji Fukumoto, Yasuhiro Mayumi
  • Patent number: 8071904
    Abstract: The present invention provides an electrostatic separation method and an electrostatic separation device each of which, even in a case where the concentration of unburned components of coal ash produced by a boiler of a coal-fired power plant is as high as 15% to 30%, can stably separate the ash (into high unburned component ash and low unburned component ash) without generating spark, reuse the high unburned component ash as fuel, and reuse the low unburned component ash as, for example, an auxiliary material of concrete.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: December 6, 2011
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Noboru Takikawa, Keiichi Mashio, Manabu Masamoto, Kouji Fukumoto, Yasuhiro Mayumi
  • Publication number: 20090065402
    Abstract: [Object]The present invention provides an electrostatic separation method and an electrostatic separation device each of which, even in a case where the concentration of unburned components of coal ash produced by a boiler of a coal-fired power plant is as high as 15% to 30%, can stably separate the ash (into high unburned component ash and low unburned component ash) without generating spark, reuse the high unburned component ash as fuel, and reuse the low unburned component ash as, for example, an auxiliary material of concrete.
    Type: Application
    Filed: October 26, 2006
    Publication date: March 12, 2009
    Applicant: Kawasaki Plant Systems Kabushiki Kaisha
    Inventors: Noboru Takikawa, Keiichi Mashio, Manabu Masamoto, Kouji Fukumoto, Yasuhiro Mayumi