The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2011
Filed:
Oct. 26, 2006
Noboru Takikawa, Machida, JP;
Keiichi Mashio, Funabashi, JP;
Manabu Masamoto, Kobe, JP;
Kouji Fukumoto, Kobe, JP;
Yasuhiro Mayumi, Himeji, JP;
Noboru Takikawa, Machida, JP;
Keiichi Mashio, Funabashi, JP;
Manabu Masamoto, Kobe, JP;
Kouji Fukumoto, Kobe, JP;
Yasuhiro Mayumi, Himeji, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
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. The electrostatic separation method and the electrostatic separation device each of which separates unburned carbon ash contained in the coal ash by an electrostatic force, wherein: a substantially flat plate lower side electrode and an upper side electrode disposed above the lower side electrode and including a high dielectric resin element are disposed; a separation zone formed by an electrostatic force is formed by generating a DC electric field between the lower side electrode and the upper side electrode where one of the lower side electrode and the upper side electrode is a positive polarity, and another electrode is a negative polarity; and the unburned carbon ash in the coal ash supplied to the separation zone is separated.