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.

Date of Patent:
Feb. 13, 2024

Filed:

Feb. 05, 2021
Applicants:

Ihi Corporation, Tokyo, JP;

Ihi Inspection and Instrumentation Co., Ltd., Tokyo, JP;

Inventors:

Hirotaka Kawabe, Tokyo, JP;

Kenjiro Chie, Tokyo, JP;

Junichi Shigeta, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23N 1/00 (2006.01); F23N 5/00 (2006.01);
U.S. Cl.
CPC ...
F23N 5/003 (2013.01); F23N 1/002 (2013.01); F23N 2221/10 (2020.01); F23N 2225/10 (2020.01); F23N 2239/02 (2020.01); F23N 2241/10 (2020.01);
Abstract

Conducted are coal-ash generating step for generating coal ash, sintered-ash generating step for heating the coal ash at temperatures within combustion temperature range of coal-fired boiler to generate sintered ash at each heating temperature, sticking-degree calculating step for rotatively separating each sintered ash by ratra tester to calculate sticking degree from weight ratio of each sintered ash after and before the rotary separation of the sintered ash, correlation determining step for burning each coal having corresponding sticking degree calculated to measure exhaust gas temperature and obtain correlation between sticking degrees and exhaust gas temperatures, exhaust-gas-temperature predicting step for predicting exhaust gas temperature from sticking degree of coal to be employed as fuel based on the correlation between the sticking degrees and the exhaust gas temperatures and adhesion predicting step for predicting ash adhesion in the coal-fired boiler based on the exhaust gas temperature predicted.


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