JPS60176317U

JPS60176317U - Coal fluidized combustion equipment

Info

Publication number: JPS60176317U
Application number: JP6308484U
Authority: JP
Inventors: 進吉岡; 秋元　秀敏; 大塚　馨象; 村上　忠孝
Original assignee: バブコツク日立株式会社
Priority date: 1984-05-01
Filing date: 1984-05-01
Publication date: 1985-11-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の流動層燃焼システムの一例を示す説明図
、第２図は本考案の一実施態様における流動燃焼炉の構
造を示す説明図、第３図は流動層における飛散粒子の供
給高さと該粒子の平均滞留時間との関係を示す図である
。符号の説明、１１・・・流動燃焼炉、１３・・・流動層
、１７・・・サイクロン、１８・・・脚管、２２・・・
散気管、３１・・・燃焼用空気、３２・・・石炭粒子、
３３・・・脱硫剤粒子。Fig. 1 is an explanatory diagram showing an example of a conventional fluidized bed combustion system, Fig. 2 is an explanatory diagram showing the structure of a fluidized combustion furnace in an embodiment of the present invention, and Fig. 3 is an explanatory diagram showing the supply height of scattered particles in the fluidized bed. FIG. 3 is a diagram showing the relationship between the average residence time of the particles and the average residence time of the particles. Explanation of symbols, 11... Fluidized combustion furnace, 13... Fluidized bed, 17... Cyclone, 18... Leg pipe, 22...
Diffusion pipe, 31... Combustion air, 32... Coal particles,
33...Desulfurizing agent particles.

Claims

[Scope of utility model registration request]

(1) In a coal fluidized combustion apparatus using a fluidized combustion furnace having a fluidized bed formed by desulfurizing agent particles and coal particles, a horizontal cross-sectional area of the fluidized bed is provided in a space above the bed surface of the fluidized bed. According to the flow of coal, one or more cyclones are provided so as to be scattered almost uniformly on the cross section, and the leg pipes of the cyclones are inserted into the fluidized bed by opening holes therein. Combustion device.

(2) Utility Model Registration Scope of Claims In the coal fluidized combustion apparatus according to claim 1, the coal fluidized combustion apparatus is characterized in that the leg pipe of the cyclone is inserted to an area of 20 to 60% of the height of the fluidized bed. Combustion device.

(3) The coal fluidized combustion device according to claim 1 of the utility model registration, characterized in that a secondary air diffuser pipe is provided downstream of the cyclone.