SU840147A1 - Method of metal heating in heating furnaces in inert gas - Google Patents
Method of metal heating in heating furnaces in inert gas Download PDFInfo
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- SU840147A1 SU840147A1 SU792772141A SU2772141A SU840147A1 SU 840147 A1 SU840147 A1 SU 840147A1 SU 792772141 A SU792772141 A SU 792772141A SU 2772141 A SU2772141 A SU 2772141A SU 840147 A1 SU840147 A1 SU 840147A1
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- SU
- USSR - Soviet Union
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- heating
- inert gas
- metal
- furnaces
- temperature
- Prior art date
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Description
(54) СПОСОБ НАГРЕВА МЕТАЛЛА В ИНЕРТНОМ В НАГРЕВАТЕЛЬНЫХ ПЕЧАХ. ГАЗЕ(54) METHOD OF HEATING METAL IN THE INERT IN THE HEATING FURNACES. Gas
затем в нагрева г ельные печи или колодцы . Высокотемпературные кауперы размещают р дом с нагревательными печами. Расход азота незначительный, гак как потери газа в кругообороте малы.then into heating furnaces or wells. High temperature cowpers are placed adjacent to heating furnaces. Nitrogen consumption is insignificant, as gas losses in the circuit are small.
Нагревают каупера смесью доменного и природного газа. В кауперах при температуре отход щего газа 300-400 коэ4ф1 циент использовани топлива О,6О-0,8О, т.е. в два раза выше, чем в нагревательных печах. Учитьша , что холодный азот предварительно подогрет в рекуператоре, температура отход щих газов от кауперов значительно ниже 4ОО С.Heat the Cowper with a mixture of blast furnace and natural gas. In cowpers, at a flue gas temperature of 300-400, the ratio of fuel consumption is 0, 6,0-0,8, i.e. twice as high as in heating furnaces. If cold nitrogen is preheated in a recuperator, the temperature of exhaust gases from cowpers is significantly lower than 4OO C.
Обычно технический азот содержитNormally, technical nitrogen contains
около 3-4% кислорода и 95% азота, кроме этого, в нагревательных печах, несмотр на положительные давлени , может иметь место засос воздуха, поэтому нужно ожидать некоторое содфжание кислорода в отход щем азоте, поступающем . обратно в каупер. Дл устранени этого недостатка в каупер,, сто щий на нагреве азота, добавл ют природный или другой вид газа с получением окиси углерода, водсрода и азота, т.е. получают полностью нейтральный газ.about 3-4% of oxygen and 95% of nitrogen, besides, in heating furnaces, despite the positive pressures, air may be drawn in, therefore, one should expect some oxygen squeezing in the outgoing nitrogen entering. back to cowper. To eliminate this disadvantage, a natural or other type of gas is added to the Cooper, which is heated by nitrogen, to produce carbon monoxide, hydrogen and nitrogen, i.e. get completely neutral gas.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792772141A SU840147A1 (en) | 1979-05-21 | 1979-05-21 | Method of metal heating in heating furnaces in inert gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792772141A SU840147A1 (en) | 1979-05-21 | 1979-05-21 | Method of metal heating in heating furnaces in inert gas |
Publications (1)
Publication Number | Publication Date |
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SU840147A1 true SU840147A1 (en) | 1981-06-23 |
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ID=20830258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792772141A SU840147A1 (en) | 1979-05-21 | 1979-05-21 | Method of metal heating in heating furnaces in inert gas |
Country Status (1)
Country | Link |
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SU (1) | SU840147A1 (en) |
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1979
- 1979-05-21 SU SU792772141A patent/SU840147A1/en active
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