SU954420A1 - Method for operating a group of blast furnaces - Google Patents
Method for operating a group of blast furnaces Download PDFInfo
- Publication number
- SU954420A1 SU954420A1 SU813262726A SU3262726A SU954420A1 SU 954420 A1 SU954420 A1 SU 954420A1 SU 813262726 A SU813262726 A SU 813262726A SU 3262726 A SU3262726 A SU 3262726A SU 954420 A1 SU954420 A1 SU 954420A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- group
- blast furnaces
- operating
- blast
- temperature
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Coke Industry (AREA)
Description
Изобретение относитс к черной металлургии , а именно к способам управлени работой группы доменных печей на комбинированном дутье.The invention relates to ferrous metallurgy, in particular to methods for controlling the operation of a group of blast furnaces in a combined blast.
Известен способ работы группы доменных печей, на комбинированном дутье, в состав которого вход т технологический кислород, природный газ и пар дл увлажнени дуть , согласно которому соотношение между расходом кислорода и природного газа уст-анавливаетс с учетом целесообразности поддерживать теоретическую температуру горени в оптимальном диапазоне , обеспечивающем плавный сход шихты, высокопроизводительную и экономичную работу доменной печи. Расход пара при этом вл етс независимым параметром, значение которого устанавливаетс в соответствии с тепловым состо нием доменной печи 1 .A known method of operation of a group of blast furnaces, on a combined blast, which includes process oxygen, natural gas and steam for humidification, according to which the ratio between the consumption of oxygen and natural gas is adjusted, taking into account the expediency of maintaining the theoretical combustion temperature in the optimal range, ensuring a smooth discharge of the charge, high-performance and economical operation of the blast furnace. The steam consumption is herewith an independent parameter, the value of which is set in accordance with the thermal state of the blast furnace 1.
Недостаток этого способа состоит в том,- что. он не учитывает техническое состо ние доменных печей и воздухонагревателей. Например, в случае остановки воздухонагревател на ремонт значительно уменьшаетс температура дуть , в результате чего оптимальна теоретическа температура горени не обеспечиваетс как из-за низкой температуры дуть , так и из-за того, что установленный ранее расход приводного газа становитс избыточным. И наоборот, в случае значительного повышени температуры дуть вследствие чрезмерного отклонени теоретической температуры горени от оптимального уровн 1900-2200®С избыточным становит10 с кислород.The disadvantage of this method is that. it does not take into account the technical condition of blast furnaces and stoves. For example, in the event that the stove is stopped for repairs, the temperature of the blow is significantly reduced, as a result of which the optimal theoretical temperature of the burn is not provided either due to the low temperature blowing and because the previously set flow rate of the drive gas becomes excessive. Conversely, in the event of a significant increase in temperature, due to an excessive deviation of the theoretical combustion temperature from the optimum level of 1900-2200®C, oxygen becomes 10 s excess.
Дополнительным основанием дл того , чтобы считать его избыточным, вл етс и то,обсто тельство, что начина с некоторой температуры An additional reason to consider it redundant is the fact that starting from a certain temperature
15 дуть , называемой критической, обогащение дуть кислородом приводит к уменьшению теплоотдачи углерода кокса в нижней зоне теплооб 1ена (проще говор , уменьшаетс приход 15 blowing, called critical, enrichment by blowing with oxygen leads to a decrease in the heat transfer of coke carbon in the lower zone of heat transfer (more simply, the arrival of
20 высокоценного тепла из-за уменьшени прихода нагретого до высокой температуры азота) , что вл етс дополнительной причиной недостаточно эффективного использовани кис25 лорода .20 high value heat due to a decrease in the arrival of nitrogen heated to a high temperature), which is an additional reason for the insufficiently efficient use of oxygen.
Наиболее близким к предлагаемому вл етс способ работы группы доменных печей, включающий перераспределение кислорода между доменными The closest to the proposed method is the operation of the blast furnace group, including the redistribution of oxygen between the blast furnaces.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU813262726A SU954420A1 (en) | 1981-03-24 | 1981-03-24 | Method for operating a group of blast furnaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU813262726A SU954420A1 (en) | 1981-03-24 | 1981-03-24 | Method for operating a group of blast furnaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU954420A1 true SU954420A1 (en) | 1982-08-30 |
Family
ID=20948512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU813262726A SU954420A1 (en) | 1981-03-24 | 1981-03-24 | Method for operating a group of blast furnaces |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU954420A1 (en) |
-
1981
- 1981-03-24 SU SU813262726A patent/SU954420A1/en active
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