JPS55125211A - Processing method of steel-making dust containing zinc and blast furnace gas ash - Google Patents
Processing method of steel-making dust containing zinc and blast furnace gas ashInfo
- Publication number
- JPS55125211A JPS55125211A JP3250779A JP3250779A JPS55125211A JP S55125211 A JPS55125211 A JP S55125211A JP 3250779 A JP3250779 A JP 3250779A JP 3250779 A JP3250779 A JP 3250779A JP S55125211 A JPS55125211 A JP S55125211A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- cupola
- coke
- make
- dust
- 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
Landscapes
- Manufacture Of Iron (AREA)
Abstract
PURPOSE: To melt the iron dust and the like containing Zn produced in iron works at high temperatures in a cupola, recover the evaporated Zn, make its effective use and take out molten iron and molten slag from the furnace bottom.
CONSTITUTION: Powder coke as internally charging coal and, if necessary, iron sources such as sand iron and powder ore are added to the foregoing dust and the like which cannot be reused because of too much dust content. Next, a necessary amount of water is added to this mixture whose Fe content has been incresed. After the mixture is mixed and kneaded, it is compression-molded to make GP (green pellets). Next, the GPs are dried by such a method as making use of the waste heat of cupola exhaust gas, after which they are directly contacted with the base metal, such as cast iron, and coke and are reduced in the so-called cupola where the base metal is melted by the combustion heat of coke. Air is then fed into the exhaust gas being formed to oxidize the evaporated Zn to ZnO, after which the crude ZnO is recovered with a cyclone and bag filter. On the other hand, the molten iron from the tapping port of the furnace is flowed into a mold to make mold pig iron. The molten slag is taken into a ladle and is flowed to a slag processing shop, where it is disposed by disintegrating after cooling.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250779A JPS55125211A (en) | 1979-03-20 | 1979-03-20 | Processing method of steel-making dust containing zinc and blast furnace gas ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3250779A JPS55125211A (en) | 1979-03-20 | 1979-03-20 | Processing method of steel-making dust containing zinc and blast furnace gas ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55125211A true JPS55125211A (en) | 1980-09-26 |
Family
ID=12360894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3250779A Pending JPS55125211A (en) | 1979-03-20 | 1979-03-20 | Processing method of steel-making dust containing zinc and blast furnace gas ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55125211A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279643A (en) * | 1992-01-17 | 1994-01-18 | Yasuo Kaneko | Process for recovering valuable metals from an iron dust |
| US6053962A (en) * | 1995-10-02 | 2000-04-25 | Nkk Corporation | Scrap melting process |
| JP2008291332A (en) * | 2007-05-26 | 2008-12-04 | Jfe Steel Kk | Method for producing molten iron using vertical-type scrap-melting furnace |
| JP2010013683A (en) * | 2008-07-02 | 2010-01-21 | Jfe Steel Corp | Molten iron manufacturing method using vertical melting furnace |
| CN104004874A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Combined direct reduction technology of blast furnace gas ash and refractory low-grade iron ore in tunnel kiln |
| CN111118238A (en) * | 2020-01-15 | 2020-05-08 | 邯郸钢铁集团有限责任公司 | Method for preparing steelmaking furnace burden by using blast furnace gas ash zinc extraction kiln slag |
-
1979
- 1979-03-20 JP JP3250779A patent/JPS55125211A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279643A (en) * | 1992-01-17 | 1994-01-18 | Yasuo Kaneko | Process for recovering valuable metals from an iron dust |
| US6053962A (en) * | 1995-10-02 | 2000-04-25 | Nkk Corporation | Scrap melting process |
| JP2008291332A (en) * | 2007-05-26 | 2008-12-04 | Jfe Steel Kk | Method for producing molten iron using vertical-type scrap-melting furnace |
| JP2010013683A (en) * | 2008-07-02 | 2010-01-21 | Jfe Steel Corp | Molten iron manufacturing method using vertical melting furnace |
| CN104004874A (en) * | 2014-06-06 | 2014-08-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Combined direct reduction technology of blast furnace gas ash and refractory low-grade iron ore in tunnel kiln |
| CN111118238A (en) * | 2020-01-15 | 2020-05-08 | 邯郸钢铁集团有限责任公司 | Method for preparing steelmaking furnace burden by using blast furnace gas ash zinc extraction kiln slag |
| CN111118238B (en) * | 2020-01-15 | 2021-12-07 | 邯郸钢铁集团有限责任公司 | Method for preparing steelmaking furnace burden by using blast furnace gas ash zinc extraction kiln slag |
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