SU417480A1 - - Google Patents

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Publication number
SU417480A1
SU417480A1 SU1705031A SU1705031A SU417480A1 SU 417480 A1 SU417480 A1 SU 417480A1 SU 1705031 A SU1705031 A SU 1705031A SU 1705031 A SU1705031 A SU 1705031A SU 417480 A1 SU417480 A1 SU 417480A1
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SU
USSR - Soviet Union
Prior art keywords
desulfurization
graphite
lime
cast iron
soda
Prior art date
Application number
SU1705031A
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Russian (ru)
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to SU1705031A priority Critical patent/SU417480A1/ru
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Publication of SU417480A1 publication Critical patent/SU417480A1/ru

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

1one

Изобретение относитс  к области черной металлургии, в частности к внедоменной десульфурации чугуна.The invention relates to the field of ferrous metallurgy, in particular to the off-site desulfurization of cast iron.

Известны десульфураторы на основе извести и соды.Known desulphurization agents based on lime and soda.

Однако десульфураци  чугуна известью и содой протекает со значительным поглощением тенла, расходуемого на нагрев реагеита и протекание эндотермической реакции. Понижение температуры чугуна увеличивает его в зкость и тем самым ухудшает услови  тепло- и массообмена.However, the desulfurization of cast iron by lime and soda proceeds with a significant absorption of the tenl consumed in heating the reagent and the endothermic reaction. Lowering the temperature of the iron increases its viscosity and thereby worsens the conditions of heat and mass transfer.

С целью создани  восстановительной атмосферы в процессе десульфурации в состав предлагаемого десульфуратора введен тонкодисперсный графит в количестве 50 вес. %. В результате потери тепла восполн ютс  за счет горени  графита в воздухе.In order to create a reducing atmosphere in the desulfurization process, finely dispersed graphite in the amount of 50 wt. % As a result, heat loss is replenished by burning graphite in the air.

Газовзвесь, состо ща  из 50 вес. % извести и 50 вес. % графита, вводитс  в ванну металла под давлением 2,2 атм через фурму. При температуре 1250-1350°С, продолжительности продувки около 3 мин и расходе взвеси 2 кг/т степень десульфурации составл ет 30-40%, что иочти вдвое превышает эффект десульфурации.Gas suspension consisting of 50 wt. % lime and 50 wt. % of graphite is introduced into the metal bath at a pressure of 2.2 atm through a lance. At a temperature of 1250–1350 ° C, a purge duration of about 3 min, and a suspension consumption of 2 kg / t, the degree of desulfurization is 30–40%, which is almost twice the effect of desulfurization.

Предмет изобретени Subject invention

Десульфуратор дл  виедоменной обработки чугуна, включающий известь, отличающийс  тем, что, с целью создани  восстановительной атмосферы в процессе десульфурации , в его состав введен тонкодисперсный графит , а компоненты вз ты в следующем соотношении , вес. %:A desulfurator for video treatment of cast iron, including lime, characterized in that, in order to create a reducing atmosphere in the desulfurization process, finely divided graphite is introduced into its composition, and the components are taken in the following ratio, wt. %:

Известь40-50Lime40-50

Тонкодиснерсный графит50-60Fine graphite 50-60

SU1705031A 1971-10-12 1971-10-12 SU417480A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1705031A SU417480A1 (en) 1971-10-12 1971-10-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1705031A SU417480A1 (en) 1971-10-12 1971-10-12

Publications (1)

Publication Number Publication Date
SU417480A1 true SU417480A1 (en) 1974-02-28

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ID=20490210

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1705031A SU417480A1 (en) 1971-10-12 1971-10-12

Country Status (1)

Country Link
SU (1) SU417480A1 (en)

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