SU840147A1 - Method of metal heating in heating furnaces in inert gas - Google Patents

Method of metal heating in heating furnaces in inert gas Download PDF

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Publication number
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
Prior art keywords
heating
inert gas
metal
furnaces
temperature
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SU792772141A
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Russian (ru)
Inventor
Сильвестр Иванович Шкуматов
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Shkumatov Silvestr
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Priority to SU792772141A priority Critical patent/SU840147A1/en
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Publication of SU840147A1 publication Critical patent/SU840147A1/en

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(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)

1.Способ нагрева металла в нагревательных печах в инертном газе, отличающийс  тем, что, с целью повыщени  качества нагрева металла, инертный газ предварительно нагревают до температуры обработки.1. A method of heating a metal in heating furnaces in an inert gas, characterized in that, in order to increase the quality of the heating of the metal, the inert gas is preheated to the treatment temperature. 2.Способ по п. 1, отличающий с   тем, что высокотемпературный нагрев инертного газа производ т в каупере .2. A method according to claim 1, characterized in that the high-temperature heating of the inert gas is performed in a cooper. 3.Способ по п. 1, о т л и ч аю щ и и с   тем, что высокотемпературный иагрев инертного газа производ т в плазмотроне .3. The method according to claim 1, wherein the high-temperature inert gas is produced in the plasma torch. 4.Способ по п. 1, о т л и ч а ю щ и и с   тем, что, с целью нейтрализации кислорода в инертном Газе в процессе нагрева в каупере, в него производ т добавку горючего газа.4. A method according to claim 1, wherein, in order to neutralize the oxygen in the inert Gas during the heating process in the cooper, a combustible gas is added to it. Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination 1. А. Дж. Гочкисс, X. М. Вебер. Защитные атмосферьц М., 1059, с. 2О, 1.86-190.1. A. J. Hotchkiss, X. M. Weber. Protective Atmosphere M., 1059, p. 2O, 1.86-190.
SU792772141A 1979-05-21 1979-05-21 Method of metal heating in heating furnaces in inert gas SU840147A1 (en)

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

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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)

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SU840147A1 true SU840147A1 (en) 1981-06-23

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SU792772141A SU840147A1 (en) 1979-05-21 1979-05-21 Method of metal heating in heating furnaces in inert gas

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SU (1) SU840147A1 (en)

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