JPH043231U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係るチヤー循環装置の一例を
示す断面図、第２図は第１図の−線断面図、
第３図は従来のチヤー循環装置を示す断面図、第
４図は第３図の−線断面図である。 ２１……燃焼炉、２２……チヤー回収手段、２
４……混合器、２５……混合室、２６……多孔板
、２６ａ……孔、２７……空気チヤンバ、２８…
…チヤー供給管、２９……空気供給管、３０……
チヤー出口管、３１……排ガス、３２……チヤー
、３３……空気、３４……固定層、４１……堰、
４２……堰制御装置。 FIG. 1 is a cross-sectional view showing an example of a chaar circulation device according to the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG.
FIG. 3 is a cross-sectional view showing a conventional chaar circulation device, and FIG. 4 is a cross-sectional view taken along the line -- in FIG. 21... Combustion furnace, 22... Char recovery means, 2
4... Mixer, 25... Mixing chamber, 26... Perforated plate, 26a... Hole, 27... Air chamber, 28...
...Char supply pipe, 29...Air supply pipe, 30...
Char outlet pipe, 31...exhaust gas, 32...char, 33...air, 34...fixed bed, 41...weir,
42...Weir control device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 燃焼炉の下流側にこの燃焼炉から飛散したチヤ
ーを回収するチヤー回収手段を設けるとともに、
このチヤー回収手段にチヤー供給管を介して混合
器の混合室を接続し、かつこの混合室をチヤー出
口管を介して前記燃焼炉に接続し、チヤーを再び
前記燃焼炉に循環させるチヤー循環装置であつて
、前記混合器の混合室は多孔板によつて空気チヤ
ンバと上下に仕切られ、該空気チヤンバから混合
室へ前記多孔板の多数の孔を通して吹出される空
気流によつて、チヤーを流動化して前記チヤー出
口管へ流出するものにおいて、前記チヤー供給管
を前記混合室における空気流の上流側端部に配設
するとともに、前記チヤー出口管を前記混合室に
おける空気流の下流側端部にて前記多孔板の表面
に底部をほぼ合致させて平行に貫通した管構造と
し、かつ前記チヤー出口管の上流位置に高さ調節
可能な堰を設けたことを特徴とするチヤー循環装
置。 In addition to providing a chir collection means for collecting chir scattered from the combustion furnace on the downstream side of the combustion furnace,
A chiar circulation device that connects a mixing chamber of a mixer to the chiar recovery means through a chiar supply pipe, and connects this mixing chamber to the combustion furnace through a chiar outlet pipe, and circulates the chir back to the combustion furnace. The mixing chamber of the mixer is vertically partitioned from an air chamber by a perforated plate, and the air is blown from the air chamber into the mixing chamber through a number of holes in the perforated plate. In the case where the cher supply pipe is fluidized and flows out to the air flow, the chier supply pipe is disposed at the upstream end of the air flow in the mixing chamber, and the chier outlet pipe is disposed at the downstream end of the air flow in the mixing chamber. A chir circulation device characterized in that it has a tube structure that penetrates in parallel with the surface of the perforated plate with its bottom almost matching the surface of the perforated plate, and a height-adjustable weir is provided at a position upstream of the chear outlet tube.