PL810B1 - Steel fabrication improvements in the Thomas converter. - Google Patents
Steel fabrication improvements in the Thomas converter. Download PDFInfo
- Publication number
- PL810B1 PL810B1 PL810A PL81021A PL810B1 PL 810 B1 PL810 B1 PL 810B1 PL 810 A PL810 A PL 810A PL 81021 A PL81021 A PL 81021A PL 810 B1 PL810 B1 PL 810B1
- Authority
- PL
- Poland
- Prior art keywords
- converter
- steel
- liquid
- steel fabrication
- raw material
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 title claims description 7
- 239000010959 steel Substances 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000002994 raw material Substances 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Description
**K ^ Przy fabrykacji stali w konwertorze Tho¬ masa, uzywa sie surowców, zawieiraijacych pewina ilosc krzemu nie pirzekracizaijaca pew¬ nej granicy, ponad która- obrabiany, zwy¬ klym sposobem, 'surowiec daje niepozadane wytryski.Niniejisizy wynalazek dotyczy pewnych udoislkonalen, dofcoinatnych przy fabrykacji stali, które pozwalaja ma traktowalnie bez utruidlnien w konwertorze surowców szairylch o zawartosci krzemu pomad normalna i mo¬ gacych wskutek tego miec mniejisiza 'zawar¬ tosc fosforu. Spoisób ten polega n,a utworze¬ niu lub (na wprowaidzeniu do konwertora, pnzed ukonczemiem procesu kapieli salinie utlenionej, zawierajacej równoczesnie pew¬ na ilosc wapma, lub prosciej calkowita ilosc wapna, potrzebnego do operacji koncowej, które po wprowadzeniu synowca szairego do konwertora, utleni krzem bezzwlocznie.Poniesienie temperatury wywolane prizez to gwaltowne utlenienie!, jak i równo¬ czesne wytwoirzemie zaJsaidiowej szlaki, zobo¬ jetniajacej krzemionke, 'sprawia, ze otfwe- glainie odbywa isie beiz wszelkiego wytrysku.Kapiel plynna silnie utlelniiona, mozna wytworzyc rózinemi spoisobami, nie przekra- cziaijac raim wynalaizku. Tytulem przykladu mozna wskazac nastepujace: Mozna przygotowac w konwertorze plyn¬ na sizlake zelatzista, lub kapiel metalowa bair- dzo utlemiona, zimiiesKama z iloscia wapma, potrzebna do wytworzenia! zamierzonej stali.Szlake mozna wytworzyc w apar&cie nie¬ zaleznym od konwertora, przelac ja do tegK) ostatniego przed odlewaniem metalu.Mozna zostawic w retorcie cizesc stali z uprzedniego pirocestu (okolo 15°/0) i nadmu- chiiwac tein metal w przeciagu kilku minut, aby go naidtlemic, przyczeni potrzebne1 wapno nalezy dodac przód wdmuchiwaniem po¬ wietrza.Mozna wziac czesc surowca!, imajacego podlegac procesowi w innym komwertoirzie, która, wylana na wapno w retorcie, nalezy nadmuchiwac przez jedna lub dwie mSlnuity, poza okreis odf osf orzenia. Dodatki mozna jak zwykle robic przed odlewaniem.Przy robotach wykonywanych wedlug tego sposobu, odkrzemianie surowca, nawet biardzo szarego, wykonywa sie, prawie mo- mentalnie; plomien goracy i obfity zjawia sie od poczatku, a wytryski podczas dmu- chamiia usuniete sa radykalnie.Ozais zuzyty do nadmuchiwaniai, w celu uprzedniego wytwoirzeniai szlaki, odzyskuje sie przez skrócenie operacji glównej. PL PL** When fabricating steel in the Tho mass converter, raw materials are used which contain a certain amount of silicon that does not exceed a certain limit, beyond which the raw material, in the usual way, gives rise to undesirable spouts. The present invention relates to certain improvements, which are useful in the fabrication of steels, which allow treatment without utilities in the converter of raw materials with a normal silicon content and therefore able to have a lower phosphorus content. This method consists in creating or (introducing into the converter, after completing the process of bathing the oxidised saline, at the same time containing a certain amount of lime, or more simply the total amount of lime needed for the final operation, which, after introducing the synechiae to the converter, will oxidize the silicon immediately. The temperature increase caused by this is a violent oxidation! and the simultaneous formation of the acidic pathway, which weakens the silica, makes the otfwelden without any gush. Liquid bath, strongly oxidized, can be produced Not to exceed the scope of the invention The following example can be indicated: You can prepare a liquid gelatian sizlake in the converter, or a metal bath with oxidation, winter Kama with the amount of calcium, necessary to produce! the intended steel. depending on the converter, transfer it to the tegK) last before metal casting. In the retort, the steel is made of the pre-pyrocasted steel (about 15 ° / 0) and the metal is blown in a few minutes to de-gasify it, add the necessary lime to the front by blowing air. You can take a part of the raw material, which must be processed in other converters which, when poured onto lime in the retort, are to be inflated through one or two mSlnuity, beyond the limits of the fogging. Additives can be made, as usual, before casting. When working according to this method, the removal of the raw material, even very gray, is performed almost instantaneously; a hot and abundant flame appears from the beginning, and the blows are removed radically during the blast. Ozazis used to inflate, in order to generate and slag beforehand, is recovered by shortening the main operation. PL PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL810B1 true PL810B1 (en) | 1924-11-29 |
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