A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLUIDIZED BED CALCINATION FURNACE
PROBLEM TO BE SOLVED: To provide a fluidized bed calcination furnace capable of reducing the rate of unburned fuel components at the outlet of a fluidized bed calcination furnace and performing sufficient calcination while preventing closure by a preheater.SOLUTION: A plurality of powdered coal blow-in lines 3, a cement raw material chute 4, and first to fourth extraction conduits 5a to 5d are connected to a lower sidewall of a cylindrical furnace body 2 whose upper end portion is closed by a top plate 2b, a fluidization air blow port 2a for blowing fluidization air into a bottom of the furnace body 2 is provided, an exhaust duct 6 is connected to an upper sidewall of the furnace body 2 above the first and/or second extraction conduit 5a, 5b to be spaced apart from the top plate 2b, blow ports 3a of the powdered coal blow-in lines 3 are arranged below suction ports of the extraction conduits 5a to 5d and above the fluidization air blow port 2a, and one of the blow ports 3a is arranged below the third or fourth extraction conduit 5c, 5d.
【課題】流動仮焼炉出口における未燃率を低減させて、プレヒータでの閉塞を防止しつつ、十分な仮焼を行うことが可能な流動仮焼炉を提供する。【解決手段】上端部が天板２ｂによって塞がれた筒状の炉体２の下部側壁に、複数の微粉炭吹込ライン３およびセメント原料の原料シュート４並びに第１〜第４の抽気導管５ａ〜５ｄが接続され、炉体２の底部に流動化空気を吹き込む流動化空気吹込口２ａが配設されるとともに、第１および／または第２の抽気導管５ａ、５ｂ上方の炉体の上部側壁に、天板２ｂとの間に間隔をおいて排気ダクト６が接続されてなり、微粉炭吹込ラインの吹込口３ａは、各々抽気導管５ａ〜５ｄの吸引口の下方であり、かつ流動化空気吹込口２ａの上方に配設されるとともに、そのうちの１つの吹込口３ａは、第３または第４の抽気導管５ｃ、５ｄの下方に配置されている。【選択図】図３
FLUIDIZED BED CALCINATION FURNACE
PROBLEM TO BE SOLVED: To provide a fluidized bed calcination furnace capable of reducing the rate of unburned fuel components at the outlet of a fluidized bed calcination furnace and performing sufficient calcination while preventing closure by a preheater.SOLUTION: A plurality of powdered coal blow-in lines 3, a cement raw material chute 4, and first to fourth extraction conduits 5a to 5d are connected to a lower sidewall of a cylindrical furnace body 2 whose upper end portion is closed by a top plate 2b, a fluidization air blow port 2a for blowing fluidization air into a bottom of the furnace body 2 is provided, an exhaust duct 6 is connected to an upper sidewall of the furnace body 2 above the first and/or second extraction conduit 5a, 5b to be spaced apart from the top plate 2b, blow ports 3a of the powdered coal blow-in lines 3 are arranged below suction ports of the extraction conduits 5a to 5d and above the fluidization air blow port 2a, and one of the blow ports 3a is arranged below the third or fourth extraction conduit 5c, 5d.
【課題】流動仮焼炉出口における未燃率を低減させて、プレヒータでの閉塞を防止しつつ、十分な仮焼を行うことが可能な流動仮焼炉を提供する。【解決手段】上端部が天板２ｂによって塞がれた筒状の炉体２の下部側壁に、複数の微粉炭吹込ライン３およびセメント原料の原料シュート４並びに第１〜第４の抽気導管５ａ〜５ｄが接続され、炉体２の底部に流動化空気を吹き込む流動化空気吹込口２ａが配設されるとともに、第１および／または第２の抽気導管５ａ、５ｂ上方の炉体の上部側壁に、天板２ｂとの間に間隔をおいて排気ダクト６が接続されてなり、微粉炭吹込ラインの吹込口３ａは、各々抽気導管５ａ〜５ｄの吸引口の下方であり、かつ流動化空気吹込口２ａの上方に配設されるとともに、そのうちの１つの吹込口３ａは、第３または第４の抽気導管５ｃ、５ｄの下方に配置されている。【選択図】図３
FLUIDIZED BED CALCINATION FURNACE
流動仮焼炉
WANG JUNZHU (author) / TAKAYAMA YOSHINORI (author)
2015-09-07
Patent
Electronic Resource
Japanese
IPC:
F23C
METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN AIR
,
Verfahren oder Vorrichtungen zur Verbrennung flüssiger oder in Luft verteilter fester Brennstoffe
/
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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