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:
Nov. 11, 2014
Filed:
Apr. 12, 2010
Masaki Yamada, Minato-Ku, JP;
Tetsuya Yanase, Minato-Ku, JP;
Masayuki Yamamoto, Minato-Ku, JP;
Tomoyuki Takeshita, Minato-Ku, JP;
Kosuke Kamiya, Minato-Ku, JP;
Masaki Yamada, Minato-Ku, JP;
Tetsuya Yanase, Minato-Ku, JP;
Masayuki Yamamoto, Minato-Ku, JP;
Tomoyuki Takeshita, Minato-Ku, JP;
Kosuke Kamiya, Minato-Ku, JP;
Metawater Co., Ltd., Minato-ku, JP;
Abstract
An inside of an incinerator body into which sludge is fed is divided into a lower portion, a portion above the lower portion, and a top portion in a height direction. The lower portion serves as a pyrolysis zone for supplying fluidizing air having an air ratio of 1.1 or less together with fuel to thermally decompose the sludge while fluidizing the sludge. The portion above the lower portion serves as an over bed combustion zone for supplying only combustion air having an air ratio of 0.1 to 0.3 to form a local high temperature place to decompose NO. The top portion serves as a perfect combustion zone for perfectly combusting unburned contents. The quantity of NO generated during sludge incineration can be drastically reduced while maintaining the use quantity of auxiliary fuel at the same level as that of a conventional incineration method.