SU144180A1 - Method for the desulfurization of liquid iron by purging it with a gaseous desulphurizer - Google Patents
Method for the desulfurization of liquid iron by purging it with a gaseous desulphurizerInfo
- Publication number
- SU144180A1 SU144180A1 SU609627A SU609627A SU144180A1 SU 144180 A1 SU144180 A1 SU 144180A1 SU 609627 A SU609627 A SU 609627A SU 609627 A SU609627 A SU 609627A SU 144180 A1 SU144180 A1 SU 144180A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- desulfurization
- gaseous
- desulphurizer
- purging
- liquid iron
- Prior art date
Links
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
Известны способы обессеривани жидкого чугуна путем обработки металла содой, магнием , иылевидиой известью и другими десульфирующими материалами, в том числе и газообразиым водородом.Methods are known for the desulfurization of molten iron by treating the metal with soda, magnesium, lime and other desulphurisation materials, including gaseous hydrogen.
С целью более эффективного удалени серы из жидкого чугуна предлагаетс нродувать его природным газом в миксере, ковше или конвертере . Предлагаемый способ основан на том, что при продувке гор чего металла метан , вл ющийс основным компонентом природного газа, нагреваетс до температуры выше 600°С и разлагаетс на углерод и водород, насыща металлическую ванну углеродом. При этом активность серы резко возрастает и оиа переходит в щлак или улетучиваетс в виде сероводорода и частично в виде серы. Такой способ обессериваии металла вл етс дешевым и эффективным.In order to more effectively remove sulfur from molten iron, it is proposed to produce it with natural gas in a mixer, ladle or converter. The proposed method is based on the fact that when flushing hot metal, methane, the main component of natural gas, is heated to a temperature above 600 ° C and decomposed into carbon and hydrogen, saturating the metal bath with carbon. At the same time, the activity of sulfur sharply increases and oia passes into sclac or volatilizes as hydrogen sulfide and partially as sulfur. This method of metal desulfurization is cheap and effective.
На Ново-Тульском металлургическом заводе проведены опытные поисковые плавки в восьмитонном ковще и дес титонном конвертере .At the Novo-Tula Metallurgical Plant, experienced prospecting melts were carried out in an eight-ton bucket and a descendant converter.
Чугун поступал из вагранки и имел следующий состав: углерод 3,45-3,55о/о, марганец 1,2-1,40/0, кремний 0,2о/о, сера 0,048-0,094о/о и фосфор 1,7-1,9о/о. Природный газ вдувалиThe iron came from the cupola and had the following composition: carbon 3.45-3.55 o / o, manganese 1.2-1.40 / 0, silicon 0.2 o / o, sulfur 0.048-0.094 o / o, and phosphorus 1.7 -1.9 o / o Natural gas was blown
через фурму, которую погружали в металл. Ковщ при продувке накрывали крышкой с двум отверсти ми дл погружени фурмы н дл отвода газов. Во врем продувки ванна вела себ спокойно, выбросов не наблюдалось. Продолжительность продувки колебалась от 5 до 15 мин, причем в конвертере после продувки в течеиие 5 мин содержание серы снижалось с 0,048 до 0,0260/0.through the tuyere, which is immersed in the metal. The purge cover was covered with a lid with two openings for immersing tuyere n for evacuating gases. During the purge, the bath was calm, no emissions were observed. The duration of the purge varied from 5 to 15 minutes, and the sulfur content in the converter after purging for 5 minutes decreased from 0.048 to 0.0260 / 0.
Степень обессеривани в этих опытах равн лась 46-65в/о, температура чугуна снижалась на 50°, а содержание углерода и марганца ирактически не измен лось.The degree of desulfurization in these experiments was 46-65 V / o, the temperature of the pig iron decreased by 50 °, and the content of carbon and manganese remained almost unchanged.
Нейтральный иаучно-исследовательский институт черной металлургии считает, что применение ириродного газа дл обессериваии чугуиа вл етс новым и промыгнленно полезным и может дать зиачительный экономический эффект.The Neutral Research Institute of Ferrous Metallurgy believes that the use of natural gas for the desulfurization of pig iron is new and useful and can have a significant economic effect.
Предмет изобретени Subject invention
Способ обессеривани жидкого чугуна иугем продувки его газообразным десульфуратором , отличающийс тем, что, с целью уменьшени содержани серы в жидком чугуне, его продувают ириродным газом.A method for desulfurizing liquid iron and scouring it with a gaseous desulphurizer, characterized in that, in order to reduce the sulfur content in the liquid iron, it is purged with iridescent gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU609627A SU144180A1 (en) | 1958-10-15 | 1958-10-15 | Method for the desulfurization of liquid iron by purging it with a gaseous desulphurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU609627A SU144180A1 (en) | 1958-10-15 | 1958-10-15 | Method for the desulfurization of liquid iron by purging it with a gaseous desulphurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU144180A1 true SU144180A1 (en) | 1961-11-30 |
Family
ID=48299880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU609627A SU144180A1 (en) | 1958-10-15 | 1958-10-15 | Method for the desulfurization of liquid iron by purging it with a gaseous desulphurizer |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU144180A1 (en) |
-
1958
- 1958-10-15 SU SU609627A patent/SU144180A1/en active
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