GB343954A - Improvements in processes for producing metal sponge - Google Patents
Improvements in processes for producing metal spongeInfo
- Publication number
- GB343954A GB343954A GB35366/29A GB3536629A GB343954A GB 343954 A GB343954 A GB 343954A GB 35366/29 A GB35366/29 A GB 35366/29A GB 3536629 A GB3536629 A GB 3536629A GB 343954 A GB343954 A GB 343954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- briquettes
- furnace
- gases
- sponge
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
343,954. Metal sponge. GUSTAFSSON, E. G. T., 95, Birger Jarlsgatan, Stockholm. Nov. 19, 1929, No. 35366. Convention date, Nov. 28, 1928. [Classes 72 and 82 (i).] In a process for producing metal sponge, e.g. iron, cobalt, chromium nickel or chrome iron sponge without fusing the ore or metal, finely divided ore and carbonaceous reducing agent and/or thermic reducing agent in excess of the amount required for the complete reduction of the ore are intimately mixed and transformed into briquettes or other form of pieces, and the briquettes &c. are reduced in a shaft or rotary furnace by heat given off by combustion gases of such a character that they burn at least part of the excess of reducing agent in the briquettes. The excess of the reducing agent is applied to the surfaces of the briquettes by powdering or blowing the briquettes with powdered coal or rolling them in the coals before the briquettes are dried. The shaft furnace 12, Fig. 1, is provided with an annular combustion chamber 16 for the fuel burnt in burners 17, Fig. 2, and the gases produced pass through openings 18 into the reducing part 12b of the furnace. The gases produced pass upward through the furnace charge and with the addition of air supplied through the openings 19, 20 from pipes 21, 22 are converted into oxidizing gases which preheat the charge in the part 12a of the furnace. The sponge passes into the cooling zone 12c, the cooling being effected by a double.walled hopper 30 in the interspaces of which air or water is circulated. The cooled sponge is discharged by screws 32, 33. In the rotary furnace, Fig. 3, the briquettes are fed into the preheating part 12a where the combustion gases are burnt with air from the ports 19, 20 and pass into the reduction part 12b where they are acted upon by gases produced by the combustion of gases from an electric furnace 53 in a burner 17 with air supplied by a pipe 58. The partly-reduced charge passes by an opening 51 into a shaft 52 and thence into the furnace 53 where the reduction is completed, an ore carbon charge being introduced through the hopper 14a to increase the production of reducing gases. Thermic reducing agents such as ferro-silicon, ferro-aluminium, .ferro-aluminiumsilicon or aluminium may replace, wholly or partly, the carbonaceous material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE343954X | 1928-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB343954A true GB343954A (en) | 1931-02-19 |
Family
ID=20308448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35366/29A Expired GB343954A (en) | 1928-11-28 | 1929-11-19 | Improvements in processes for producing metal sponge |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB343954A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2409315A1 (en) * | 1977-09-20 | 1979-06-15 | Kinglor Metor Spa | PROCESS FOR OBTAINING BRIQUETTES INTENDED FOR VERTICAL REDUCTION OVENS AND BRIQUETTES THUS OBTAINED |
DE3041359A1 (en) * | 1980-11-03 | 1982-05-13 | Anatolij Alekseevič Penza Černyj | Cupola furnace has sized burner ducts - which correspond in dimensions at outlet to ratio of the cupola shaft dia. |
CN104789775A (en) * | 2015-04-10 | 2015-07-22 | 东北大学 | Preparation method and use method of aluminum-containing magnesium-smelting reducing agent |
-
1929
- 1929-11-19 GB GB35366/29A patent/GB343954A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2409315A1 (en) * | 1977-09-20 | 1979-06-15 | Kinglor Metor Spa | PROCESS FOR OBTAINING BRIQUETTES INTENDED FOR VERTICAL REDUCTION OVENS AND BRIQUETTES THUS OBTAINED |
DE3041359A1 (en) * | 1980-11-03 | 1982-05-13 | Anatolij Alekseevič Penza Černyj | Cupola furnace has sized burner ducts - which correspond in dimensions at outlet to ratio of the cupola shaft dia. |
CN104789775A (en) * | 2015-04-10 | 2015-07-22 | 东北大学 | Preparation method and use method of aluminum-containing magnesium-smelting reducing agent |
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