PL441750A1 - Method of obtaining granules from slug from metallurgical processes, especially converter and/or blast-furnace - Google Patents
Method of obtaining granules from slug from metallurgical processes, especially converter and/or blast-furnaceInfo
- Publication number
- PL441750A1 PL441750A1 PL441750A PL44175022A PL441750A1 PL 441750 A1 PL441750 A1 PL 441750A1 PL 441750 A PL441750 A PL 441750A PL 44175022 A PL44175022 A PL 44175022A PL 441750 A1 PL441750 A1 PL 441750A1
- Authority
- PL
- Poland
- Prior art keywords
- sludge
- reducer
- urea
- processes
- metallurgical processes
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 6
- 239000008187 granular material Substances 0.000 title abstract 4
- 238000010310 metallurgical process Methods 0.000 title abstract 3
- 239000010802 sludge Substances 0.000 abstract 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 3
- 239000004202 carbamide Substances 0.000 abstract 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 3
- 239000000292 calcium oxide Substances 0.000 abstract 2
- 235000012255 calcium oxide Nutrition 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910000805 Pig iron Inorganic materials 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005453 pelletization Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Treatment Of Sludge (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób wytwarzania granulatu ze szlamu pochodzącego z procesów metalurgicznych, zwłaszcza konwertorowych i/lub wielkopiecowych. Sposób wytwarzania granulatu ze szlamu pochodzącego z procesów metalurgicznych, zwłaszcza konwertorowych i/lub wielkopiecowych polega na tym, że do powstałego wskutek zraszania wodą powstałych w czasie wytopu surówki i/lub stali gazów odlotowych szlamu w postaci gęstego mułu, dodaje się reduktor będący nośnikiem wodoru, korzystnie mocznik oraz wapno palone, w wyniku czego wilgotny szlam ulega wstępnemu odwodnieniu, tworząc plastyczną pulpę, którą po wstępnym uformowaniu wprowadza się do grudkownika, w którym w procesie grudkowania uzyskuje się granulat o wielkości od 5 do 25 mm dodany do szlamu reduktor będący mocznikiem w stanie stałym stanowi do 25% masy szlamu, natomiast dodane do szlamu wapno palone stanowi do 12% masy mieszaniny szlamu i reduktora w postaci mocznika.The subject of the application is a method of producing granulate from sludge originating from metallurgical processes, especially converter and/or blast furnace processes. The method of producing granulate from sludge originating from metallurgical processes, especially converter and/or blast furnace processes, consists in adding a reducer, which is a hydrogen carrier, to the sludge waste gases in the form of dense sludge resulting from spraying water generated during the smelting of pig iron and/or steel. preferably urea and quicklime, as a result of which the wet sludge is initially dehydrated, forming a plastic pulp, which, after initial formation, is introduced into the pelletizer, where the pelletizing process produces granules with a size ranging from 5 to 25 mm. A reducer added to the sludge is urea in in the solid state it constitutes up to 25% of the weight of the sludge, while the quicklime added to the sludge constitutes up to 12% of the weight of the mixture of sludge and the urea reducer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL441750A PL441750A1 (en) | 2022-07-16 | 2022-07-16 | Method of obtaining granules from slug from metallurgical processes, especially converter and/or blast-furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL441750A PL441750A1 (en) | 2022-07-16 | 2022-07-16 | Method of obtaining granules from slug from metallurgical processes, especially converter and/or blast-furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
PL441750A1 true PL441750A1 (en) | 2024-01-22 |
Family
ID=89621479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL441750A PL441750A1 (en) | 2022-07-16 | 2022-07-16 | Method of obtaining granules from slug from metallurgical processes, especially converter and/or blast-furnace |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL441750A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS527303A (en) * | 1975-07-01 | 1977-01-20 | Bethlehem Steel Corp | Raw ball made of smoke dust or blast furnace and method of producing same |
US6494933B1 (en) * | 1999-09-28 | 2002-12-17 | B. U. S. Zinkrecycling Freiberg Gmbh | Method of utilizing secondary raw materials containing iron, zinc and lead |
US20110308353A1 (en) * | 2009-01-22 | 2011-12-22 | Nu-Iron Technology, Llc | Production of iron from metallurgical waste |
-
2022
- 2022-07-16 PL PL441750A patent/PL441750A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS527303A (en) * | 1975-07-01 | 1977-01-20 | Bethlehem Steel Corp | Raw ball made of smoke dust or blast furnace and method of producing same |
US6494933B1 (en) * | 1999-09-28 | 2002-12-17 | B. U. S. Zinkrecycling Freiberg Gmbh | Method of utilizing secondary raw materials containing iron, zinc and lead |
US20110308353A1 (en) * | 2009-01-22 | 2011-12-22 | Nu-Iron Technology, Llc | Production of iron from metallurgical waste |
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