JPH0318496U - - Google Patents

Description

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

第１図は本考案実施例にもとづく流動層炉の砂
戻し装置構成図、第２図は第１図のＰ部詳細図、
第３図、第４図は従来技術にもとづく炉気循環を
行う流動層炉の構成図である。 １……流動層炉、２……レトルト、４……分散
板、９……サイクロン、１０……流動用ブロア、
１１……炉気循環パイプ、１２……砂供給装置、
１３……砂戻し用ブロア、１４……砂戻しパイプ
、１５……流動層炉上部フリーゾーン、１６……
砂戻しパイプ、１７……ノズル、１７ａ……砂供
給口、１８……砂受け。 Fig. 1 is a configuration diagram of a sand return device for a fluidized bed furnace based on an embodiment of the present invention, Fig. 2 is a detailed view of section P in Fig. 1,
FIGS. 3 and 4 are configuration diagrams of a fluidized bed furnace that performs furnace air circulation based on the prior art. 1...Fluidized bed furnace, 2...Retort, 4...Dispersion plate, 9...Cyclone, 10...Blower for fluidization,
11... Furnace air circulation pipe, 12... Sand supply device,
13...Blower for sand return, 14...Sand return pipe, 15...Fluidized bed furnace upper free zone, 16...
Sand return pipe, 17...nozzle, 17a...sand supply port, 18...sand receiver.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 流動層炉の炉外に設置する流動粒子と雰囲気ガ
スを分離するサイクロンと雰囲気ガスを炉内に圧
送する流動用ブロアを有する炉気循環パイプにお
いて、前記サイクロンの下部を砂落しパイプで砂
供給装置に連結すると共に、該砂供給装置の一方
を前記炉気循環パイプのうち、サイクロンと流動
用ブロアの中間地点より分岐し砂戻し用ブロアを
有する砂戻しパイプに接続させ他方を砂戻しパイ
プで流動層上部のフリーゾーンに接続させて、前
記サイクロンで捕集砂供給装置に集積される流動
粒子が自動的に流動層炉内に復帰するようにした
ことを特徴とする流動層炉の砂戻し装置。 In a furnace air circulation pipe that is installed outside the furnace of a fluidized bed furnace and has a cyclone that separates fluidized particles and atmospheric gas, and a fluidized blower that forces the atmospheric gas into the furnace, a sand supply device is provided in which the lower part of the cyclone is connected to a sand dropping pipe. At the same time, one side of the sand supply device is connected to a sand return pipe which is branched from the middle point between the cyclone and the flow blower and has a sand return blower among the furnace air circulation pipes, and the other side is connected to the sand return pipe which has a sand return blower. A sand return device for a fluidized bed furnace, characterized in that it is connected to a free zone at the top of the bed so that fluidized particles accumulated in the sand collection device by the cyclone are automatically returned to the fluidized bed furnace. .