Title:
ミル分級機の回転数制御装置、及びこれに好適な燃料比算定装置
Document Type and Number:
Japanese Patent JP6803747
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To accurately control a rotational frequency of a mill classifier to improve boiler efficiency.SOLUTION: A rotational frequency controller 20 of a mill classifier 24 applied to a coal-burning boiler 1 includes: a furnace heat absorption amount calculation unit 11 configured to calculate a furnace heat absorption amount of the coal-burning boiler 1; a fuel ratio calculation unit 12 configured to calculate a representative fuel ratio in reference to a first fuel ratio calculated based on the furnace heat absorption amount and a second fuel ratio calculated based on a NOx value measured at a furnace outlet of the coal-burning boiler 1; and a rotational frequency setting unit 13 configured to set a rotational frequency of the mill classifier 24 based on the representative fuel ratio.SELECTED DRAWING: Figure 4
Inventors:
Yusuke Ochi
Takuya Shibata
Takuya Shibata
Application Number:
JP2016255483A
Publication Date:
December 23, 2020
Filing Date:
December 28, 2016
Export Citation:
Assignee:
Mitsubishi Power, Ltd.
International Classes:
F23K3/02; B02C15/04; F23K1/00; F23N1/00
Domestic Patent References:
| JP2000249331A | ||||
| JP63041726A | ||||
| JP9126436A | ||||
| JP2013224799A | ||||
| JP10202137A | ||||
| JP8338602A |
Foreign References:
| US5875977 |
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office