JPS60165614U

JPS60165614U - Powder fuel combustion equipment

Info

Publication number: JPS60165614U
Application number: JP4945884U
Authority: JP
Inventors: 折本　学; 三垣　仁志; 中原　俊明
Original assignee: バブコツク日立株式会社
Priority date: 1984-04-04
Filing date: 1984-04-04
Publication date: 1985-11-02
Also published as: JPH0120486Y2

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 drawings]

第１図は粉粒体燃料燃焼装置の一例を示す構成図、第２
図は本考案に係る粉粒体燃料燃焼装置の一実施例を示す
構成図、第３図は重油助燃率と煤塵量との関係を示す特
性図、第４図は粉砕機負荷と石油コークスの微粉粒度と
の関係を示す特性図、第５図は粉砕機の負荷率と１次空
気に対する石油コークスとの比率との関係を示す特性図
である。１・・・火炉、５・・・重油タンク、６・・・重油ポン
プ、７・・・重油加熱器、８Ａ、８Ｂ・・・重油流量調
節弁、１３Ａ、１３Ｂ・・・給炭機、１４Ａ、１４Ｂ・
・・粉砕機、１５・・・微粉炭管、１６・・・微粉コー
クスバーナ、１７・・・給炭管、１８・・・１次通風機
、２０・・・１次空気流量制御ダンパ。Figure 1 is a configuration diagram showing an example of a granular fuel combustion device;
The figure is a block diagram showing one embodiment of the granular fuel combustion device according to the present invention, Figure 3 is a characteristic diagram showing the relationship between the fuel oil auxiliary combustion rate and the amount of soot and dust, and Figure 4 is a graph showing the relationship between the load on the crusher and the amount of petroleum coke. FIG. 5 is a characteristic diagram showing the relationship between the fine powder particle size and the ratio of petroleum coke to primary air and the load factor of the crusher. 1... Furnace, 5... Heavy oil tank, 6... Heavy oil pump, 7... Heavy oil heater, 8A, 8B... Heavy oil flow rate control valve, 13A, 13B... Coal feeder, 14A , 14B・
... Pulverizer, 15... Pulverized coal pipe, 16... Pulverized coke burner, 17... Coal feed pipe, 18... Primary ventilation fan, 20... Primary air flow rate control damper.

Claims

[Scope of utility model registration request]

A granular fuel in which granular fuel such as pulverized petroleum coke is burned coaxially on the same burner throat installed on the side of the furnace, using fossil fuels with good ignition and flame holding properties such as heavy oil as auxiliary fuel. In the combustion apparatus, an upper stage burner is provided near the furnace outlet, and a lower stage burner is provided at a position away from the furnace exit, and the amount of auxiliary fuel supplied to the upper stage burner is increased compared to the lower stage burner, and the amount of primary air is increased. In addition to reducing the ratio of the supply amount of granular fuel to the amount, 1, the amount of auxiliary fuel supplied to the lower burner compared to the upper burner is reduced, and the amount of granular fuel supplied to the primary air amount is reduced. A granular fuel combustion device characterized in that the granular fuel combustion device is configured to increase the .