PL3734B1 - Method of smelting ores. - Google Patents
Method of smelting ores. Download PDFInfo
- Publication number
- PL3734B1 PL3734B1 PL3734A PL373424A PL3734B1 PL 3734 B1 PL3734 B1 PL 3734B1 PL 3734 A PL3734 A PL 3734A PL 373424 A PL373424 A PL 373424A PL 3734 B1 PL3734 B1 PL 3734B1
- Authority
- PL
- Poland
- Prior art keywords
- coke
- smelting ores
- porous
- ores
- smelting
- Prior art date
Links
- 238000003723 Smelting Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims 2
- 239000000571 coke Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Description
Koks polowiczny, otrzymany destylacja dobrze spiekajacego sie wegla, jest najcze¬ sciej kruchy, natomiast z górnoslaskiego wegla kamiennego otrzymuje sie, np, zapo- moca prazenia w obrotowych piecach beb¬ nowych, polowiczny koks lekki, porowaty i bardzo wytrzymaly. Spostrzezenie to, zro¬ bione juz przez wynalazców i sprawdzone dawniej, bylo tern ciekawsze, ze koks wy¬ robiony z tego samego wegla ma jednak czesto wlasnosci mniej dobre i jest czesto bardzo kruchy. Twardy porowaty koks po¬ lowiczny nadaje sie doskonale do wielkich pieców i kopulaków, gdyz jest on dosta¬ tecznie wytrzymaly i odporny na dzialanie spoczywajacych na nim ladunków w piecu.Z powodu swej wielkiej porowatosci i ni¬ skiej temperatury jego produkcji, koks ten ma jeszcze te wielka zalete, ze jest bardzo latwo palny. Swym zewnetrznym wygla¬ dem przypomina on wegiel drzewny, który, jak wiadomo, jest wysmienitym materja¬ lem do wytapiania rud i jezeli dzis nie od¬ grywa w przemysle takiej roli jak dawniej, to tylko dlatego, ze jest go malo i cena jego jest zbyt wysoka. Dalsza korzyscia przy uzywaniu koksu polowicznego jest to, ze otrzymuje sie gazy odlotowe o znacznie wiekszej wartosci opalowej. Uzywanie ko¬ ksu polowicznego do opalania wielkich pie¬ ców jest jeszcze i z tego wzgledu ekono- miczniejsze, ze przy prazeniu np, wegla, który przy zwyklem koksowaniu daje mniej niz 3% smoly, w obrotowych pie¬ cach bebnowych uzyskuje sie 10% cennej smoly. Lepsze wyzyskanie paliwa w piecuwplywa tez na zmniejszenie jego ilosci w ladunkach, zaladowanych do wielkiego pie¬ ca- lub kopulaka. PLHalf-half coke, obtained by distillation of well-sintering coal, is most often brittle, while Upper-Silesian hard coal is obtained, for example, from firing in rotary drum furnaces, half-half coke, light, porous and very durable. This observation, already made by the inventors and proven in the past, was the more interesting that coke made from the same coal has, however, often less good properties and is often very brittle. Hard, porous half-coke is well suited to blast furnaces and domes, as it is sufficiently strong and resistant to the effects of loads resting on it in the furnace. Due to its high porosity and low temperature of production, this coke still has the great advantage is that it is very flammable. Its external appearance resembles charcoal, which is known to be an excellent material for smelting ores and if today it does not play such a role in the industry as it used to be, it is only because it is scarce and its price is too high. tall. A further advantage when using half-coke is that you get off-gases with a much higher calorific value. The use of half-shell for the firing of blast furnaces is also more economical for this reason, as for example coal, which in conventional coking gives less than 3% tar, is obtained in rotary drum furnaces 10% of valuable tar. . Better recovery of fuel in the furnace also reduces its amount in the charges loaded into the blast furnace or dome. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL3734B1 true PL3734B1 (en) | 1926-02-27 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE366236C (en) | Refractory mass | |
| PL3734B1 (en) | Method of smelting ores. | |
| US1521719A (en) | Refractory composition | |
| US1295456A (en) | Combustion of waste fuels. | |
| Jour | On the Proper Coal for Smelting Sulphuretted Lead and Silver Ores | |
| SU50017A1 (en) | Method of making magnesite brick | |
| Jackman et al. | Drying and preheating coals before coking. Part 1 | |
| Armstrong | Carbonisation technology and engineering: a practical exposition of the processes employed for the carbonisation of coal and wood by high and low temperature methods, with an account of the by-products obtained | |
| SU9189A1 (en) | Method of using flue dust | |
| PL4638B1 (en) | Method of reducing ores. | |
| DE851016C (en) | Highly fire-resistant brick for cement shaft ovens | |
| SU66234A1 (en) | Anthracite enrichment method and the like combustible minerals | |
| AT101175B (en) | Process for the smelting of magnesite sand. | |
| Rees | The Durability of Refractories | |
| DE953950C (en) | Gas-heated shaft furnace for burning limestone, dolomite or magnesite | |
| DE884620C (en) | Process for lowering the sintering temperature of dolomite | |
| DE455941C (en) | Oven tiles and oven moldings | |
| US52397A (en) | Improved artificial fuel | |
| DE938177C (en) | Process for the production of refractory bricks and ramming masses | |
| Cresson et al. | Report or the committee on science and the arts of the Franklin Institute, on Alex E. outerbridge's method of carbonizing fabrics, and of obtaining castings therefrom in metal | |
| PL59367B1 (en) | ||
| Williams | Minerals and Power | |
| SU82442A1 (en) | The method of preparation for smelting in the cupola of mineral raw materials in the production of slag wool and stone casting | |
| DE342594C (en) | Process for the utilization of bituminous clays and limes | |
| PL7063B1 (en) | The method of briquetting hard coal, |