SU987345A1 - Method of recovering protection atmosphere - Google Patents
Method of recovering protection atmosphere Download PDFInfo
- Publication number
- SU987345A1 SU987345A1 SU803224217A SU3224217A SU987345A1 SU 987345 A1 SU987345 A1 SU 987345A1 SU 803224217 A SU803224217 A SU 803224217A SU 3224217 A SU3224217 A SU 3224217A SU 987345 A1 SU987345 A1 SU 987345A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- atmosphere
- protection atmosphere
- annealing
- recovering protection
- nitrogen
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 238000004320 controlled atmosphere Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Furnace Details (AREA)
Description
(54) СПОСОБ УТИЛИЗАЦИИ ЗАЩИТНОЙ АТМОСФЕРЫ(54) METHOD OF UTILIZATION OF PROTECTIVE ATMOSPHERE
Изобретение относитс к способам утилизации защитных атмосфер, в частности к использованию водородной атмосферы от колпаковых печей в печах непрерывного действи дл холоднокатаных электротехнических сталей, и может быть применено в черной металлургии .The invention relates to methods for disposing of protective atmospheres, in particular the use of a hydrogen atmosphere from bell-type furnaces in continuous-action furnaces for cold-rolled electrical steels, and can be applied in ferrous metallurgy.
Известен способ рекристаллизационного отжига металла в печах непрерывного действи , где в качестве контролируемой атмосферы используетс азотноводородна смесь, получаема путем смешени азота с блоком разделени воздуха с электролитическим водородом или диссоциированным аммиаком 1.A known method of recrystallization annealing of metal in continuous furnaces, where a nitrogen-hydrogen mixture is used as a controlled atmosphere, obtained by mixing nitrogen with an air separation unit with electrolytic hydrogen or dissociated ammonia 1.
К недостаткам известного способа рекристаллизационного отжига относ тс значительные энергетические затра- ты на производство примен емой контролируемой атмосферы.The disadvantages of the known method of recrystallization annealing are significant energy costs for the production of the controlled atmosphere used.
Известен способ отжига металлических изделий в контролируемой среде, образованной азотом, в камере печи, котора может быть вакуумирована. Начальную газовую азотосодержгицую смесь очищают адсорбцией от остальных газовых компонентов при прохождении смеси через адсорбционное устройство . Затем камеру печи заполн ютThere is a method of annealing metal products in a controlled environment formed by nitrogen in the furnace chamber, which can be evacuated. The initial gas nitrogen-containing mixture is purified by adsorption from the remaining gas components as the mixture passes through the adsorption device. Then the furnace chamber is filled
полученным азотом, а адсорбент регенерируют десорбцией в вакуумеГ.the resulting nitrogen, and the adsorbent is regenerated by desorption in vacuum.
Недостатками этого сйособа вл ютс наличие доросто щего вакуумного, энергетического и технологического печного оборудовани ; возможность натекани кислорода воздуха при работе с взрывоопаснымиконтролируемыми атмосферами.The disadvantages of this method are the presence of expensive vacuum, power and process furnace equipment; the possibility of air leakage when working with explosive controlled atmospheres.
10ten
Наиболее близким по технической сущности и достигаемому результату вл етс способ использовани защитной атмосфеЕ л после отжига стали в колпаковых печах дл вторичного ис15 пользовани с целью улучшени условий , труда 3.The closest in technical essence and the achieved result is a method of using protective atmosphere after annealing steel in bell-type furnaces for secondary use in order to improve labor conditions 3.
Недостатком этого способа вл ютс большие энергозатраты и затраты на очистку газа. The disadvantage of this method is the high energy costs and gas purification costs.
2020
Цель изобретени - снижение энергозатрат и затрат на очистку.The purpose of the invention is to reduce energy costs and cleaning costs.
Цель достигаетс тем, что согласно способу, загр зненный в процессе отжига водород вместо сброса из кол25 паковых печей на свечу в интервале температур отжига от 800 до 1200С с выдержкой и охлаждени до .собираетс в коллектор, проходит счистку от кислорода, двуокиси угле30 рода и влаги и после смииени с азоThe goal is achieved by the fact that, according to the method, hydrogen contaminated during the annealing process instead of being dropped from the number of pack ovens to a candle in the annealing temperature range from 800 to 1200 ° C with exposure and cooling to the collector, is cleaned from oxygen, carbon dioxide of the kind and moisture and after mixing with azo
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803224217A SU987345A1 (en) | 1980-12-26 | 1980-12-26 | Method of recovering protection atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803224217A SU987345A1 (en) | 1980-12-26 | 1980-12-26 | Method of recovering protection atmosphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU987345A1 true SU987345A1 (en) | 1983-01-07 |
Family
ID=20934260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU803224217A SU987345A1 (en) | 1980-12-26 | 1980-12-26 | Method of recovering protection atmosphere |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU987345A1 (en) |
-
1980
- 1980-12-26 SU SU803224217A patent/SU987345A1/en active
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