SU605838A1 - Method of blast furnace smelting - Google Patents
Method of blast furnace smeltingInfo
- Publication number
- SU605838A1 SU605838A1 SU762390349A SU2390349A SU605838A1 SU 605838 A1 SU605838 A1 SU 605838A1 SU 762390349 A SU762390349 A SU 762390349A SU 2390349 A SU2390349 A SU 2390349A SU 605838 A1 SU605838 A1 SU 605838A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- blast furnace
- furnace smelting
- hot
- blow
- Prior art date
Links
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
(54) СПОСОБ ДОМЕННОЙ ПЛАВКИ(54) METHOD OF BLANKING
с периодом окопо одного часа. По ампли« туано-фазовой характеристике канала температуре гор чего дуть - сопержание крем ни в чугуне рассчитывают фазу колебаний кремни от изменений текгаературы дуть with a one hour trench. According to the amplitude of the channel's tuano-phase characteristic, the temperature of a hot blow — the support of the cream or in the iron, the phase of silicon oscillations from the changes in the temperature range of blowing is calculated
Ф F
ф -oiJ oic5T6J + O,5f -oiJ oic5T6J + O, 5
гg
где Т - посто нна времени канала температура гор чего дуть - содержание кремни в j fyryHe,where T is the channel time constant, the temperature of the hot blow is the silicon content in j fyryHe,
(j - частора колебаний содержани крэкь ни в чугуне,(j is the frequency fluctuation frequency of the crack in the cast iron,
0,5 - сдвиг факл, учитывающий необходимость иаменени температуры гор чего дуть по отношению к колебани м кремни от рудной нагрузки в противофазе.0.5 is the shift of the flare, taking into account the need for and replacing the temperature of hot blowing with respect to fluctuations of silicon from ore loading in antiphase.
В момент согласованна фаз колебаний производ т выключение регул тора температуры гор чего дуть и перевод воздухона гревател с нагрева на дутье. Изменение температуры гор чего дуть имеет пилообразный периодический характер, причем согласование фаз обеспечивает регулирующий эффект по отношению к колебани м кремни Данный способ позвол ет полностью испол э- зевать тепловую внергню воздухонагревате лей, повысить среднюю температуру дуть , стабилизировать содержание кремни в чугуне и снизить расход ко са.At the moment of the coordinated phases of the oscillations, the temperature regulator turns off the hot blowing and the transfer of the air heater from heating to blowing. The temperature variation of the hot blow has a sawtooth periodic character, and the phase matching provides a regulating effect with respect to silicon fluctuations. This method allows to fully use the heat source of the heaters, increase the average temperature of the blow, stabilize the silicon content in the iron and reduce the consumption of copper sa
Пример. Доменна печь объемом 1719 м работала в режиме переменной рудной нагрузки с периодом 2 О подач и амплитудой +1,0 т/под от среднего расхода кокса в 7,0 т/под. По 1})азочастот ной характеристике канала температура го р чего дуть - содержание кремни в чуг}Example. A domain furnace with a volume of 1719 m worked in a variable ore load mode with a period of 2 O feed and an amplitude of +1.0 t / under the average coke consumption of 7.0 t / under. According to 1}) the frequency characteristic of the channel, the temperature is near the point of blow - silicon content in the chug
не сдвиг фазы колебаний температуры гор чего дугь оценен в 0,6 периода.no phase shift in temperature fluctuations of a hot arc is estimated at 0.6 period.
В момент согласовани фаз 15 час 20 мин выключен регул тор температуры гор чего дуть и воздухонагреватель переведен с нагрева на дутье. Амплитуда изменений теьтературы гор чего дуть составила от + 30 до J; 40 С, средн температура дуть пош 1силась на 30 С. В таком режиме доменна печь проработала 6 суток. Среднеквадратичное отклонение содержани кремни в чугуне снизилось на OjO3%, среднее зна- чение кремни в чугуне уменьшилось на 0s06%. Производительность увеличилась на l,8%j,расход кокса снизилс на 3 кг/г чугуна .At the moment when the phases are coordinated for 15 hours and 20 minutes, the temperature controller is turned off for hot blowing and the heater is switched from heating to blowing. The amplitude of the temperature changes of hot blow is from + 30 to J; 40 C, the average temperature of the blow is 1C to 30 C. In this mode, the blast furnace has worked for 6 days. The standard deviation of the silicon content in the pig iron decreased by OjO3%, the average value of the silicon in the iron decreased by 0–06%. Productivity increased by l, 8% j, coke consumption decreased by 3 kg / g of pig iron.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762390349A SU605838A1 (en) | 1976-07-19 | 1976-07-19 | Method of blast furnace smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762390349A SU605838A1 (en) | 1976-07-19 | 1976-07-19 | Method of blast furnace smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU605838A1 true SU605838A1 (en) | 1978-05-05 |
Family
ID=20671972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762390349A SU605838A1 (en) | 1976-07-19 | 1976-07-19 | Method of blast furnace smelting |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU605838A1 (en) |
-
1976
- 1976-07-19 SU SU762390349A patent/SU605838A1/en active
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