IT1135593B - Continuous sponge iron prodn. in shaft furnace - Google Patents
Continuous sponge iron prodn. in shaft furnaceInfo
- Publication number
- IT1135593B IT1135593B IT19927/81A IT1992781A IT1135593B IT 1135593 B IT1135593 B IT 1135593B IT 19927/81 A IT19927/81 A IT 19927/81A IT 1992781 A IT1992781 A IT 1992781A IT 1135593 B IT1135593 B IT 1135593B
- Authority
- IT
- Italy
- Prior art keywords
- gas
- temp
- furnace
- reductant
- stream
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 9
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000000571 coke Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Manufacture Of Iron (AREA)
Abstract
In a continuous sponge iron prodn. process, CO2 and H2O are removed from the furnace exhaust gas which is then split into at least two streams. One stream is passed into a gas generator, filled with solid reductant, in which the stream is heated by a plasma burner and injected with an oxidant to form a gas mixt. comprising mainly CO and H2. This gas mixt.is held at a temp. such that the ash content of the solid reductant forms a slag, is mixed with at least one of the other gas streams to adjust its temp. to that required for iron oxide redn. in the furnace, and is then injected at the bottom of the furnace. The oxidant is pref. water or oxygen and the reductant is pref. coke. The ash content of the reductant forms a slag which is easily removed so that problems of ash deposition in the installation are avoided. The hydrogen content and the temp. of the final reducing gas are controlled to the required values. The process is economic since the excess heat of the gas from the gas generator is used to heat the cooler untreated exhaust gas stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19927/81A IT1135593B (en) | 1981-02-23 | 1981-02-23 | Continuous sponge iron prodn. in shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19927/81A IT1135593B (en) | 1981-02-23 | 1981-02-23 | Continuous sponge iron prodn. in shaft furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8119927A0 IT8119927A0 (en) | 1981-02-23 |
| IT1135593B true IT1135593B (en) | 1986-08-27 |
Family
ID=11162409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT19927/81A IT1135593B (en) | 1981-02-23 | 1981-02-23 | Continuous sponge iron prodn. in shaft furnace |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1135593B (en) |
-
1981
- 1981-02-23 IT IT19927/81A patent/IT1135593B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8119927A0 (en) | 1981-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7906809L (en) | PROCEDURE FOR DIRECT REDUCTION OF IRON WITH CARBON GAS | |
| KR880001424B1 (en) | Process for producing gas containing carbon monoxide and hydrogen gas from materials containing carbon and / or hydrocarbons | |
| KR930002519A (en) | Process for producing heat-treated gas body in situ using non-thermologically generated nitrogen | |
| KR880006365A (en) | Process and apparatus for manufacturing molten pig iron and generating electrical energy | |
| ZA917786B (en) | Process for producing pig iron or sponge iron | |
| TWI864000B (en) | Method for operating a blast furnace | |
| GB1532661A (en) | Process and an apparatus for the production of carbon black | |
| CA1265340A (en) | Carbon gasification | |
| IT1135593B (en) | Continuous sponge iron prodn. in shaft furnace | |
| IT1135591B (en) | Continuous sponge iron prodn. in shaft furnace | |
| GB1334174A (en) | Blast furnace operation | |
| US4553742A (en) | Apparatus for generating a reducing gas | |
| AU625618B2 (en) | Process and equipment for the heat treatment, before hardening, of metallic pieces, by cementation, carbonitridation or heating | |
| GB1247417A (en) | Method of blast furnace reduction of iron ores | |
| ES8300867A1 (en) | Method of controlling furnace atmospheres | |
| JPS644583B2 (en) | ||
| ES483580A1 (en) | Apparatus for treating gases produced from coal | |
| JPH01195225A (en) | Method for melting iron manufacturing raw material | |
| JPS5641306A (en) | Iron making method by direct reduction of iron oxide | |
| SE8006815L (en) | SET AND PLANT FOR PRODUCING IRON FUNGI | |
| GB945312A (en) | Method of producing pig iron or ferrous alloys in a blast furnace | |
| US4996694A (en) | Method and apparatus for melting iron and steel scrap | |
| KR850001631B1 (en) | Method for manufacturing sponge iron | |
| CA1151879A (en) | Method and apparatus for manufacturing sponge iron | |
| UA10583A (en) | METHOD FOR natural gas supply to blast furnace tuyeres |