§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP0519178A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Combustion control method of refuse incinerator

Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1992-04-16
•
Granted: —
•
Expires: 2012-04-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention aims for the object thereof at preventing unburnt gas and noxious gas components from being generated in a refuse incinerator, and provides a combustion control method by which it is arranged so that a feeder 2 and a stoker 3 are not only controlled so as to keep evaporation S1 of the boiler at a target value thereby to achieve stabilized combustion extending over a long period of time, but also feed water quantity S2 and the like from a boiler water pipe panel section 2 forming a combustion chamber 6 are detected, and the rate of overfire air quantity to main combustion air quantity to a lower part of the stoker is controlled at a constant total gas capacity so that the fluctuation width of the feed water quantity S2 falls within a set range.

Inventors

  • 👤 Norihiko Yokohama Technical Institute Orita
  • 👤 Hidetaka Yokohama Technical Institute Ono
  • 👤 Masaharu Yokohama Machinery Works Kira
  • 👤 Shizuo Yokohama Machinery Works Yasuda

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 10:21
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/022; F23G; F23G5/00; F23G5/50; F23N5/00; F23N5/003; F23N5/006; F23G2207/00; F23G2207/10; F23G2207/103; F23G2207/20; F23G2207/30; F23G2900/00; F23G2900/55; F23G2900/55008; F23G2900/55009; F23N2233/00; F23N2233/06; F23N2233/08; F23N2237/00; F23N2237/16; F23N2241/00; F23N2241/18; F23N5/18

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 70 words
A combustion control method of a refuse incinerator, characterized in that: at least one of evaporation S1, feed water quantity S2 and evaporation level S7 at a boiler water pipe panel section forming a combustion chamber of a refuse incinerator is detected; and a ratio of overfire air quantity to main combustion air quantity is controlled so that the fluctuation width of these detected value falls within a set range.
Claim 2
Dependent Claim 99 words
A combustion control method of a refuse incinerator, characterized in that: evaporation S1 at a boiler, boiler water pipe panel section forming a combustion chamber of a refuse incinerator and feed water quantity S2 to said boiler water pipe panel section are detected; and a ratio of overfire air quantity to main combustion air quantity is controlled so that the overfire air quantity is increased in case said feed water quantity S2 is larger than a set value and the main combustion air quantity is increased in case said feed water quantity S2 is smaller than the set value.
Claim 3
Dependent Claim 89 words
A combustion control method of a refuse incinerator, characterized in that: evaporation quantity S1 and evaporation level S7 at a boiler water pipe panel section forming a combustion chamber of a refuse incinerator are detected; and a ratio of overfire air quantity to main combustion air quantity is controlled so that the overfire air quantity is reduced in case said evaporation level S7 is higher than a set value and the main combustion air quantity is reduced in case said evaporation level S7 is lower than the set value.

References Cited (Backward Citations)

US4574746A Cited
EP0413104A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag