JPS5514862A - Sintering method for decreasing nitrogen oxide - Google Patents
Sintering method for decreasing nitrogen oxideInfo
- Publication number
- JPS5514862A JPS5514862A JP8708078A JP8708078A JPS5514862A JP S5514862 A JPS5514862 A JP S5514862A JP 8708078 A JP8708078 A JP 8708078A JP 8708078 A JP8708078 A JP 8708078A JP S5514862 A JPS5514862 A JP S5514862A
- Authority
- JP
- Japan
- Prior art keywords
- sintering
- caco
- contained
- ore
- iron ore
- 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
- 238000005245 sintering Methods 0.000 title abstract 6
- 230000003247 decreasing effect Effects 0.000 title abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title 3
- 238000000034 method Methods 0.000 title 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- 239000002245 particle Substances 0.000 abstract 4
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 3
- 239000000571 coke Substances 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- 235000019738 Limestone Nutrition 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To prevent N2 contained in coke, a raw material for sintering, form being converted into NOx in sintering iron ore, by blending the iron ore with small particles of lime stone.
CONSTITUTION: In sintering iron ore powder, CaCO3 is added to the ore in order to make the ore retain a basicity suitable as self-fluxing sinter. The particle size of CaCO3 is adjusted to a particle diameter not larger than 2.5 mm. Small particle size of CaCO3 decreases in sintering the ratio of oxidation of N2 contained in coke of blended raw material to NOx, decreasing NOx content of the exhaust gas discharged from the sintering machine. Consequently cost for the equipment for removing NOx contained in the exhaust gas, and the operation cost for the equipment are reduced remarkably.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8708078A JPS5514862A (en) | 1978-07-19 | 1978-07-19 | Sintering method for decreasing nitrogen oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8708078A JPS5514862A (en) | 1978-07-19 | 1978-07-19 | Sintering method for decreasing nitrogen oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5514862A true JPS5514862A (en) | 1980-02-01 |
| JPS5726336B2 JPS5726336B2 (en) | 1982-06-03 |
Family
ID=13904958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8708078A Granted JPS5514862A (en) | 1978-07-19 | 1978-07-19 | Sintering method for decreasing nitrogen oxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5514862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10557828B2 (en) | 2014-02-17 | 2020-02-11 | Westinghouse Electric Company Llc | Ultrasonic phased array transducer for the NDE inspection of the jet pump riser welds and welded attachments |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004286B (en) * | 2018-01-04 | 2020-10-27 | 中冶长天国际工程有限责任公司 | Modified coke powder based on sintering low-nitrogen-oxide combustion, modification method and system and iron ore sintering method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075910A (en) * | 1973-11-10 | 1975-06-21 |
-
1978
- 1978-07-19 JP JP8708078A patent/JPS5514862A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5075910A (en) * | 1973-11-10 | 1975-06-21 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10557828B2 (en) | 2014-02-17 | 2020-02-11 | Westinghouse Electric Company Llc | Ultrasonic phased array transducer for the NDE inspection of the jet pump riser welds and welded attachments |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5726336B2 (en) | 1982-06-03 |
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