SU470973A3 - Method of blowing metal - Google Patents
Method of blowing metalInfo
- Publication number
- SU470973A3 SU470973A3 SU1815953A SU1815953A SU470973A3 SU 470973 A3 SU470973 A3 SU 470973A3 SU 1815953 A SU1815953 A SU 1815953A SU 1815953 A SU1815953 A SU 1815953A SU 470973 A3 SU470973 A3 SU 470973A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- jet
- liquid
- oxidant
- center
- metal
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/34—Blowing through the bath
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
(54) СПОСОБ ИРОДУВКИ МЕТАЛЛА(54) METAL IGNITURE METHOD
1one
Изобретение относитс К области чёрной металлургии, а именно к производству стали в конвертерах.The invention relates to the field of ferrous metallurgy, namely, the production of steel in converters.
Известны способы продувки металла путем ввода в металл струи окислител , окруженной кольцевой струей жидкого топлива.Known methods of blowing metal by introducing into the metal jet of oxidant, surrounded by a ring jet of liquid fuel.
Цель изобретени - уменьшить угар железа в дым.The purpose of the invention is to reduce the waste of iron in the smoke.
Это достигаетс тем, что в центре струи окислител соосно с ней ввод т струю жидкости . В качестве жидкости, вводимой в центре струи окислител , могут использовать воду, смесь воды с газом, жидкое топливо или взвесь измельченного твердого топлива в жидкости .This is achieved by injecting a stream of liquid coaxially with it in the center of the oxidant jet. Water, a mixture of water and gas, liquid fuel, or a suspension of ground solid fuel in a liquid can be used as a liquid introduced in the center of the oxidant jet.
Вещество (например, вода, вод ной пар, смесь воды с газом), вводимое в центре струи окислител , должно охлаждать струю благодар поглощению тепла при диссоциации. Кроме того, могут примен тьс вещества, вл ющиес химическими восстановител ми, а именно углеродосодержащие (например, жидкое топливо или взвесь измельченного твердого топлива в воде или жидком топливе).A substance (for example, water, water vapor, a mixture of water with a gas) introduced into the center of the oxidant jet must cool the stream due to the absorption of heat during dissociation. In addition, chemical reducing agents, namely carbonaceous (for example, liquid fuels or suspended solid fuels in water or liquid fuels) can be used.
При вводе тройной струи в металл быстро расшир юща с центральна стру охлаждает реакционную зону как при диссоциации, такWhen a triple jet is introduced into the metal, the rapidly expanding central jet cools the reaction zone during dissociation,
И при рассредоточении кольцевой струи окислител по большому объему ванны.And when the annular jet disperses the oxidizer over a large bath volume.
Дополнительное охлаждение реакционной зоны происходит благодар реакции восстановлепи окислов железа, кремни , марганца в самом центре реакционной зоны при взаимодействии углерода с этими окислами, так как реакци восстановлени вл етс эндотермической .Additional cooling of the reaction zone occurs due to the reduction of iron oxides, silicon, manganese in the very center of the reaction zone during the interaction of carbon with these oxides, since the reduction reaction is endothermic.
Вместе с тем тепло возвращаетс в процесс при рассредоточенном по всей ванне сжигании топлива и, следовательно, тепловой баланс плавки вл етс положительным в сравнении с обычной кислородной продувкой металла.At the same time, heat is returned to the process with fuel combustion dispersed throughout the bath and, therefore, the heat balance of the smelting is positive in comparison with the usual oxygen blowing of the metal.
Таким образом, количество скрапа, присаживаемого в конвертер, может быть увеличено в 2,5-3,8 раза.Thus, the amount of scrap deposited in the converter can be increased by 2.5-3.8 times.
Дл переоборудовани обычных томасовских конвертеров дл продувки обычную донную фурму замен ют трем концентрично расположенными трубками, усть которых наход тс на уровне внутренней поверхности днища или боковой стенки конвертера. Кажда трубка подключена к соответствующему источнику питани . При расположении фурм в боковой стенке трубки располагаютс горизонтально или под небольщим углом к горизонту (ниже, на уровне или выше уровн расплава ).To convert conventional Thomas converters for blowing, the usual bottom tuyere is replaced by three concentric tubes, the mouth of which is located at the level of the inner surface of the bottom or side wall of the converter. Each tube is connected to an appropriate power source. When the tuyeres are located in the side wall of the tube, they are positioned horizontally or at a slight angle to the horizon (lower, at or above the level of the melt).
Предмет изобретени Subject invention
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7128575A FR2147862B1 (en) | 1971-08-04 | 1971-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU470973A3 true SU470973A3 (en) | 1975-05-15 |
Family
ID=9081456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1815953A SU470973A3 (en) | 1971-08-04 | 1972-08-04 | Method of blowing metal |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4825617A (en) |
| BE (1) | BE787143A (en) |
| CA (1) | CA985053A (en) |
| DE (1) | DE2238316A1 (en) |
| FR (1) | FR2147862B1 (en) |
| GB (1) | GB1401855A (en) |
| LU (1) | LU65849A1 (en) |
| SU (1) | SU470973A3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2755165C3 (en) * | 1977-12-10 | 1988-03-24 | Klöckner CRA Technologie GmbH, 4100 Duisburg | Method for increasing the scrap rate in steel production |
| JPS5641307A (en) * | 1979-09-10 | 1981-04-18 | Nippon Steel Corp | Increasing method for heat input in oxygen top blown steel making process |
| JPS58121375U (en) * | 1982-02-10 | 1983-08-18 | 上村工業株式会社 | electroplating device |
| FR2537996B1 (en) * | 1982-12-20 | 1986-02-28 | Siderurgie Fse Inst Rech | NOZZLE FOR BOTTOM BLOWN OXYGEN STEEL CONVERTER |
| JPS6021398A (en) * | 1983-07-12 | 1985-02-02 | Rihei Tomono | Method and apparatus for alloy plating |
| JPS6024392A (en) * | 1983-07-18 | 1985-02-07 | Deitsupusoole Kk | Zincate zinc electroplating method |
| JPS60121299A (en) * | 1983-12-01 | 1985-06-28 | Tokuyama Soda Co Ltd | Nickel plating method |
| JPH0270087A (en) * | 1988-09-01 | 1990-03-08 | Nippon Kinzoku Co Ltd | Method and apparatus for plating tin |
-
0
- BE BE787143D patent/BE787143A/en unknown
-
1971
- 1971-08-04 FR FR7128575A patent/FR2147862B1/fr not_active Expired
-
1972
- 1972-08-03 CA CA148,701A patent/CA985053A/en not_active Expired
- 1972-08-03 GB GB3630972A patent/GB1401855A/en not_active Expired
- 1972-08-03 DE DE19722238316 patent/DE2238316A1/en active Pending
- 1972-08-03 LU LU65849D patent/LU65849A1/xx unknown
- 1972-08-04 SU SU1815953A patent/SU470973A3/en active
- 1972-08-04 JP JP7827272A patent/JPS4825617A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA985053A (en) | 1976-03-09 |
| DE2238316A1 (en) | 1973-02-22 |
| BE787143A (en) | 1973-02-05 |
| LU65849A1 (en) | 1973-01-15 |
| FR2147862A1 (en) | 1973-03-11 |
| FR2147862B1 (en) | 1974-03-15 |
| GB1401855A (en) | 1975-07-30 |
| JPS4825617A (en) | 1973-04-03 |
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