PL93063B1 - - Google Patents
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- Publication number
- PL93063B1 PL93063B1 PL17243574A PL17243574A PL93063B1 PL 93063 B1 PL93063 B1 PL 93063B1 PL 17243574 A PL17243574 A PL 17243574A PL 17243574 A PL17243574 A PL 17243574A PL 93063 B1 PL93063 B1 PL 93063B1
- Authority
- PL
- Poland
- Prior art keywords
- oxygen
- nozzles
- open
- batch
- intensifying
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
Przedmiotem wynalazku jest sposób intensyfi¬ kacji procesu martenowskiego.Znany sposób intensyfikacji procesu martenow¬ skiego polega na zastosowaniu tlenu do spalania paliwa i do procesu swiezenia kapieli metalowej.Podczas swiezenia kapieli, wdmuchiwanie tlenu nastepuje przez ruchome lance tlenowe z dyszami cylindrycznymi, zamontowane w sklepieniu pieca lub zanurzane do kapieli metalowej. Zastosowanie ruchomych lanc tlenowych stwarza duze trudnosci techniczne, a ponadto wymaga wysokich kosztów nakladów.Istota wynalazku polega na wprowadzaniu tlenu do roztapianego wsadu metalowego za posrednic¬ twem dysz naddzwiekowych, których zasieg od¬ dzialywania strumieni tlenowych jest regulowany w miare roztapiania wsadu. Ilosc dysz tlenowych jest co najmniej równa liczbie okien wsadowych.Sposób intensyfikacji, wedlug wynalazku, zwiek¬ sza wydajnosc procesu martenowskiego, dzieki przyspieszeniu okresu roztapiania wsadu metalo¬ wego w piecu za pomoca wprowadzanego tlenu.Ponadto sposób umozliwia prowadzenie intensyfi¬ kacji swiezenia bez koniecznosci stosowania rucho¬ mych lanc tlenowych.Sposób intensyfikacji procesu martenowskiego polega na tym, ze tlen wprowadza sie przez dysze o regulowanym zasiegu strumieni tlenowych, mon¬ towanych w sklepieniu pieca nad kazdym oknem wsadowym. Mozna tez stosowac podwójny uklad dysz o róznym zasiegu oddzialywania strumieni tlenowych.Przykladowo, w 60 tonowym piecu martenows- kim, pracujacym przy udziale 100% wagowych wsadu stalego, osiaga sie sposobem wedlug wyna¬ lazku, wydajnosc procesu o okolo 15% wyzsza, przy uzyciu 10—15 nm3 tlenu na 1 tone wsadu meta¬ lowego. PLThe subject of the invention is a method of intensifying the open-hearth process. The known method of intensifying the open-hearth process consists in the use of oxygen to burn fuel and to refresh the metal bath. During the refreshing of the bath, oxygen is injected through movable oxygen lances with cylindrical nozzles, mounted in the furnace roof. or immersed in a metal bath. The use of mobile oxygen lances causes great technical difficulties and, moreover, requires high investment costs. The essence of the invention consists in introducing oxygen into the molten metal charge through supersonic nozzles, the range of which the oxygen jets interact with is regulated as the charge melts. The number of oxygen nozzles is at least equal to the number of batch ports. The method of intensification, according to the invention, increases the efficiency of the open-hearth process, due to the acceleration of the melting period of the metal charge in the furnace with the help of the introduced oxygen. Moreover, the method makes it possible to intensify the refreshment without the need to use movable oxygen lances. The method of intensifying the open hearth process consists in introducing oxygen through nozzles with a regulated range of oxygen streams, mounted in the furnace roof above each charging window. It is also possible to use a dual arrangement of nozzles with different ranges of influence of oxygen jets. For example, in a 60 ton open-hearth furnace, working with 100% by weight of solid charge, the process efficiency is achieved by the method according to the invention, the efficiency of the process is about 15% higher when using 10-15 nm 3 of oxygen per 1 ton of metal charge. PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17243574A PL93063B1 (en) | 1974-07-04 | 1974-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17243574A PL93063B1 (en) | 1974-07-04 | 1974-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL93063B1 true PL93063B1 (en) | 1977-05-30 |
Family
ID=19968072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL17243574A PL93063B1 (en) | 1974-07-04 | 1974-07-04 |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL93063B1 (en) |
-
1974
- 1974-07-04 PL PL17243574A patent/PL93063B1/pl unknown
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