JPS6367084B2 - - Google Patents
Info
- Publication number
- JPS6367084B2 JPS6367084B2 JP1076083A JP1076083A JPS6367084B2 JP S6367084 B2 JPS6367084 B2 JP S6367084B2 JP 1076083 A JP1076083 A JP 1076083A JP 1076083 A JP1076083 A JP 1076083A JP S6367084 B2 JPS6367084 B2 JP S6367084B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- combustion
- inert gas
- furnace
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000007789 gas Substances 0.000 claims description 30
- 238000002485 combustion reaction Methods 0.000 claims description 25
- 239000011261 inert gas Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Description
【発明の詳細な説明】
本発明は、不活性ガス製造装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inert gas production apparatus.
従来、たとえば、冷却帯に保護雰囲気ガスとし
て窒素ガスを主体とする不活性ガスを供給する炉
においては、加熱源用燃料の他に、前記不活性ガ
スを製造するために、たとえば、DXガス（発熱
形雰囲気ガス）発生機へも別途燃料を供給する必
要があり、設備全体として、燃料使用量が多く燃
料費が高くなるという欠点があつた。 Conventionally, for example, in a furnace in which an inert gas mainly composed of nitrogen gas is supplied as a protective atmosphere gas to a cooling zone, in addition to the heating source fuel, in order to produce the inert gas, for example, DX gas ( It was necessary to separately supply fuel to the exothermic atmospheric gas generator, and the equipment as a whole had the disadvantage of using a large amount of fuel and increasing fuel costs.
本発明は、炉内加熱に使用した燃料の燃焼排ガ
スは、O2濃度を別にすれば、前記不活性ガスと
して使用できるものである点に着目し、従来、大
気中に排出させていた燃焼排ガス中のO2を、不
完全燃焼生成ガス中のCO，H2，CH4等で反応除
去して不活性ガスとして、つまり、従来、大気中
に排出していた燃焼排ガスを調制雰囲気ガスの一
種である窒素ガス主体の不活性ガスに転換して使
用することにより省エネルギーを図るとともに、
燃焼負荷の変動（燃焼排ガスの変動）に対しても
必要不活性ガス量を安定して供給することのでき
る不活性ガス製造装置を提供することを目的とす
る。 The present invention focuses on the fact that the combustion exhaust gas of the fuel used for heating the furnace can be used as the inert gas, apart from the O 2 concentration, and eliminates the combustion exhaust gas that was conventionally discharged into the atmosphere. The O 2 in the gas is removed by reaction with CO, H 2 , CH 4 , etc. in the gases produced by incomplete combustion and converted into an inert gas. In addition to saving energy by converting to an inert gas mainly composed of nitrogen gas,
It is an object of the present invention to provide an inert gas production device that can stably supply a necessary amount of inert gas even in response to fluctuations in combustion load (fluctuations in combustion exhaust gas).
つぎに、本発明にかかる不活性ガス製造装置の
一実施例を図面にしたがつて説明する。 Next, one embodiment of the inert gas production apparatus according to the present invention will be described with reference to the drawings.
図において、１は連続熱処理炉の加熱帯、２は
冷却帯で、加熱帯１には加熱源としてのラジアン
トチユーブ３が設けられており、その燃焼排ガス
はガスブースタ４により混合室５に供給される。
また、混合室５には燃焼室６が付設されており、
炭化水素ガス（たとえばプロパン）と空気とを理
輪空気比以下でバーナ７で不完全燃焼させる。 In the figure, 1 is a heating zone of the continuous heat treatment furnace, 2 is a cooling zone, and the heating zone 1 is provided with a radiant tube 3 as a heating source, and the combustion exhaust gas is supplied to a mixing chamber 5 by a gas booster 4. Ru.
In addition, a combustion chamber 6 is attached to the mixing chamber 5,
A hydrocarbon gas (for example, propane) and air are incompletely combusted in a burner 7 at a ring-air ratio or less.
なお、不完全燃焼生成ガス量は、炉の燃焼負荷
により燃焼排ガスが変動するため、適当に調整さ
れるものである。 Note that the amount of gas produced by incomplete combustion is appropriately adjusted because the flue gas fluctuates depending on the combustion load of the furnace.
そして、前記燃焼排ガスと不完全燃焼生成ガス
とは混合室５で混合されるが、この場合、前記不
完全燃焼生成ガスは、たとえば、CO，H2，CH4
を含有するリツチDXガス（CO2；7.0，CO；
10.2，H2；8.2，CH4；0.5，H2O；８，N2；73.3
％を含有する）であるため、２〜３％含有する燃
焼排ガス中のO2は、CO＋1/2O2→CO2，H2＋1/2
02→H2Oなる反応により除去される。 Then, the combustion exhaust gas and the incomplete combustion product gas are mixed in the mixing chamber 5, but in this case, the incomplete combustion product gas is, for example, CO, H 2 , CH 4
Rich DX gas containing (CO 2 ; 7.0, CO;
10.2, H 2 ; 8.2, CH 4 ; 0.5, H 2 O; 8, N 2 ; 73.3
%), the O 2 in the combustion exhaust gas containing 2 to 3% is CO + 1/2 O 2 → CO 2 , H 2 + 1/2
It is removed by the reaction 0 2 →H 2 O.
こうして製造された高温の不活性ガスは、さら
に反応塔８に至り、内部に充填されたレンガ片あ
るいは、Ni系，Co系，Pt系，Pb系等の触媒層を
通過することにより前記反応を促進し、残存O2
がさらに減じられ、その後、ガスクーラ等の冷却
装置９で常温に降温させて前記冷却帯２へ供給す
るようになつている。 The high-temperature inert gas produced in this way further reaches the reaction tower 8, where it passes through the brick pieces filled inside or a Ni-based, Co-based, Pt-based, Pb-based, etc. catalyst layer to carry out the reaction. Promote and residual O2
After that, the temperature is lowered to room temperature by a cooling device 9 such as a gas cooler, and the temperature is then supplied to the cooling zone 2.
なお、前記混合室５に供給される燃焼排ガスは
他の熱処理炉におけるものでも、また、直火式バ
ーナの炉内燃焼排ガスであつても良いことは勿論
である。 It goes without saying that the combustion exhaust gas supplied to the mixing chamber 5 may be from another heat treatment furnace, or may be the combustion exhaust gas from a direct-fired burner.
以上の説明で明らかなように、本発明にかかる
不活性ガス製造装置は、不完全燃焼生成ガスと炉
の燃焼排ガスとの混合ガスから不活性ガスを製造
するものであるから、従来そのまま大気中に排出
されていた燃焼排ガスを有効に利用でき、しか
も、炉の燃焼排ガスの変動に対しても、不活性燃
焼生成ガスの発生量を調節することにより、炉に
供給する不活性ガスの総量が確実に確保すること
ができることになる。 As is clear from the above explanation, since the inert gas production apparatus according to the present invention produces inert gas from the mixed gas of the incomplete combustion product gas and the combustion exhaust gas of the furnace, it can be directly released into the atmosphere. In addition, the total amount of inert gas supplied to the furnace can be reduced by adjusting the amount of inert combustion gas generated in response to fluctuations in the flue gas of the furnace. This means that it can be ensured.
図面は、本発明にかかる不活性ガス製造装置の
一実施例を示す説明図である。
３……加熱源、４……燃焼排ガス用ガスブース
タ、５……混合室、６……燃焼室、、７……バー
ナ、８……反応塔、９……冷却装置。
The drawing is an explanatory diagram showing one embodiment of the inert gas production apparatus according to the present invention. 3... Heat source, 4... Gas booster for combustion exhaust gas, 5... Mixing chamber, 6... Combustion chamber, 7... Burner, 8... Reaction tower, 9... Cooling device.
Claims (1)
焼室と、該燃焼室からの高温燃焼生成ガスと炉か
らの燃焼排ガスを混合する混合室と、該混合室か
らの混合ガス中の残存酸素を除去する反応塔と、
該反応塔を出た高温ガスを冷却する冷却装置と、
から構成したことを特徴とする不活性ガス製造装
置。1 A combustion chamber for incomplete combustion of hydrocarbon gas and air, a mixing chamber for mixing high-temperature combustion generated gas from the combustion chamber and combustion exhaust gas from the furnace, and a combustion chamber for removing residual oxygen in the mixed gas from the mixing chamber. a reaction column for removing;
a cooling device for cooling the high temperature gas exiting the reaction tower;
An inert gas production device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076083A JPS59137705A (en) | 1983-01-25 | 1983-01-25 | Inert gas manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1076083A JPS59137705A (en) | 1983-01-25 | 1983-01-25 | Inert gas manufacturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59137705A JPS59137705A (en) | 1984-08-07 |
| JPS6367084B2 true JPS6367084B2 (en) | 1988-12-23 |
Family
ID=11759280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1076083A Granted JPS59137705A (en) | 1983-01-25 | 1983-01-25 | Inert gas manufacturing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59137705A (en) |
-
1983
- 1983-01-25 JP JP1076083A patent/JPS59137705A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59137705A (en) | 1984-08-07 |
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