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. 23, 2021
Filed:
Nov. 13, 2017
Taiheiyo Engineering Corporation, Tokyo, JP;
Yasushi Yamamoto, Tokyo, JP;
TAIHEIYO ENGINEERING CORPORATION, Tokyo, JP;
Abstract
An apparatus for reducing mercury content of cement kiln exhaust gascomprising: a mixing and heating devicefor mixing cement kiln dusts D, Dincluded in a cement kiln combustion exhaust gas Ginto a cement raw material Rwithdrawn from a cycloneC (orB) other than the highest stage cycloneD and the lowest stage cycloneA of a preheaterfor preheating cement raw material Rwhile heating the cement kiln dusts D, Dthrough sensible heat of the cement raw material R; a mercury recovery devicefor recovering mercury Hg vaporized from the cement kiln dusts D, Dby the mixing and heating; and a feeder for feeding mercury-removed dusts D, Ddischarged from the mixing and heating deviceto a cycloneB (orA) positioning at a lower stage from the cycloneC (orB) from which the cement raw material Ris withdrawn.