JPS6276896U - - Google Patents
Info
- Publication number
- JPS6276896U JPS6276896U JP16553785U JP16553785U JPS6276896U JP S6276896 U JPS6276896 U JP S6276896U JP 16553785 U JP16553785 U JP 16553785U JP 16553785 U JP16553785 U JP 16553785U JP S6276896 U JPS6276896 U JP S6276896U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- reduction furnace
- dispersion plate
- fluidized bed
- smelting
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims 3
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Landscapes
- Manufacture Of Iron (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
第１図はこの考案に係る流動層式予備還元炉の
実施例の要部を示す断面図、第２図は第１図にお
ける―線に沿う断面図、第３図は従来の溶融
還元設備の全体構成を示す断面図、第４図は従来
の予備還元炉におけるガス分散板の目詰まりを示
す拡大断面図である。
２２Ａ，２２Ｂ……ガス分散孔、２４Ａ，２４
Ｂ……ガス分散板、２６……原料、２８……流動
層式予備還元炉、３０Ａ，３０Ｂ……ガス分散板
挿脱掃除装置、３２……ガス分散板掃除室、３４
Ａ，３４Ｂ……移動装置。
Fig. 1 is a sectional view showing the main parts of an embodiment of the fluidized bed pre-reduction furnace according to this invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, and Fig. 3 is a sectional view of the conventional smelting reduction equipment. FIG. 4 is an enlarged sectional view showing clogging of the gas distribution plate in a conventional preliminary reduction furnace. 22A, 22B...Gas distribution hole, 24A, 24
B... Gas distribution plate, 26... Raw material, 28... Fluidized bed pre-reduction furnace, 30A, 30B... Gas distribution plate insertion/removal cleaning device, 32... Gas distribution plate cleaning room, 34
A, 34B...Movement device.
Claims (1)
えたガス分散板上に粉粒状原料を投入し、前記溶
融還元炉からの高温排ガスを還元剤及び流動化ガ
スとして前記ガス分散孔から分散噴出し、前記原
料を流動化して予備還元する流動層式予備還元炉
において、前記ガス分散板は複数とされると共に
、該ガス分散板を予備還元炉から挿脱自在として
掃除するガス分散板挿脱掃除装置を備えたことを
特徴とする流動層式予備還元炉。 Powdered raw materials are placed on a gas dispersion plate that is disposed upstream of the smelting reduction furnace and is equipped with gas distribution holes, and the high-temperature exhaust gas from the smelting and reduction furnace is dispersed through the gas distribution holes as a reducing agent and fluidizing gas. In a fluidized bed pre-reducing furnace that fluidizes and pre-reduces the raw material, the gas dispersion plate is provided in plurality, and the gas dispersion plate is inserted into and removed from the pre-reduction furnace for cleaning. A fluidized bed pre-reduction furnace characterized by being equipped with a de-cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16553785U JPH033918Y2 (en) | 1985-10-28 | 1985-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16553785U JPH033918Y2 (en) | 1985-10-28 | 1985-10-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6276896U true JPS6276896U (en) | 1987-05-16 |
| JPH033918Y2 JPH033918Y2 (en) | 1991-01-31 |
Family
ID=31095667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16553785U Expired JPH033918Y2 (en) | 1985-10-28 | 1985-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH033918Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03229811A (en) * | 1990-02-02 | 1991-10-11 | Nkk Corp | Device for removing dust attached to the bottom surface of the dispersion plate of the pre-reduction furnace in melt reduction equipment |
| JPH03247716A (en) * | 1990-02-27 | 1991-11-05 | Nkk Corp | Device for removing dust attached to the bottom surface of the dispersion plate of the pre-reduction furnace in melt reduction equipment |
| JPH03247715A (en) * | 1990-02-27 | 1991-11-05 | Nkk Corp | Dispersing disk for pre-reduction furnace in smelting reduction equipment |
| JPH0448016A (en) * | 1990-06-16 | 1992-02-18 | Nkk Corp | Pre-reduction furnace in smelting reduction device for iron ore |
| JPH08199212A (en) * | 1995-09-11 | 1996-08-06 | Nkk Corp | Pre-reduction furnace in smelting reduction equipment for iron ore |
-
1985
- 1985-10-28 JP JP16553785U patent/JPH033918Y2/ja not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03229811A (en) * | 1990-02-02 | 1991-10-11 | Nkk Corp | Device for removing dust attached to the bottom surface of the dispersion plate of the pre-reduction furnace in melt reduction equipment |
| JPH03247716A (en) * | 1990-02-27 | 1991-11-05 | Nkk Corp | Device for removing dust attached to the bottom surface of the dispersion plate of the pre-reduction furnace in melt reduction equipment |
| JPH03247715A (en) * | 1990-02-27 | 1991-11-05 | Nkk Corp | Dispersing disk for pre-reduction furnace in smelting reduction equipment |
| JPH0448016A (en) * | 1990-06-16 | 1992-02-18 | Nkk Corp | Pre-reduction furnace in smelting reduction device for iron ore |
| JPH08199212A (en) * | 1995-09-11 | 1996-08-06 | Nkk Corp | Pre-reduction furnace in smelting reduction equipment for iron ore |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033918Y2 (en) | 1991-01-31 |
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