JPH0241094U - - Google Patents
Info
- Publication number
- JPH0241094U JPH0241094U JP11797888U JP11797888U JPH0241094U JP H0241094 U JPH0241094 U JP H0241094U JP 11797888 U JP11797888 U JP 11797888U JP 11797888 U JP11797888 U JP 11797888U JP H0241094 U JPH0241094 U JP H0241094U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- fluidized bed
- reduction furnace
- nozzle
- fluidized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011001 backwashing Methods 0.000 claims 1
- 239000006185 dispersion Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
第１図ａは、この考案に従うガス分散板を組込
んだ予備還元炉の横断面図、同図ｂはそのＡ―Ａ
矢視図、第２図ａは、この考案に従うガス分散板
の別例を組込んだ予備還元炉の横断面図、同図ｂ
はそのＢ―Ｂ矢視図である。
１……予備還元炉、２……還元ガスの導入口、
３……ガス分散板、４，４′……吹出しノズル、
５，５……逆洗ノズル、６……洗浄ガス用配管、
７……制御弁、８……目皿、９……孔。
Figure 1a is a cross-sectional view of a pre-reduction furnace incorporating a gas distribution plate according to this invention, and Figure 1b is a
Fig. 2a is a cross-sectional view of a preliminary reduction furnace incorporating another example of the gas distribution plate according to this invention, Fig. 2b
is the BB arrow view. 1...Preliminary reduction furnace, 2...Reducing gas inlet,
3...Gas distribution plate, 4,4'...Blowout nozzle,
5, 5...Backwash nozzle, 6...Cleaning gas piping,
7... Control valve, 8... Perforated plate, 9... Hole.
Claims (1)
状鉱石を流動化させつつ予備還元する流動層予備
還元炉において、 該炉の下部に設置したガス分散板に、凹形にな
る多孔質の吹出しノズルを複数個設けると共に、
各吹出しノズルにはそれぞれその凹み部に向つて
開口する逆洗用ノズルを配設したことを特徴とす
る予備還元炉の流動層下部構造。[Scope of Claim for Utility Model Registration] In a fluidized bed pre-reduction furnace in which powdered ore is pre-reduced while being fluidized by high-temperature reducing gas introduced from the bottom of the furnace, a gas dispersion plate installed at the bottom of the furnace, In addition to providing multiple concave porous blow-out nozzles,
A fluidized bed lower structure of a preliminary reduction furnace, characterized in that each blowout nozzle is provided with a backwashing nozzle that opens toward a recessed portion thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11797888U JPH0241094U (en) | 1988-09-09 | 1988-09-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11797888U JPH0241094U (en) | 1988-09-09 | 1988-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241094U true JPH0241094U (en) | 1990-03-20 |
Family
ID=31361925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11797888U Pending JPH0241094U (en) | 1988-09-09 | 1988-09-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241094U (en) |
-
1988
- 1988-09-09 JP JP11797888U patent/JPH0241094U/ja active Pending
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