JPH0222412A - Method for operating atmospheric gas generating device - Google Patents
Method for operating atmospheric gas generating deviceInfo
- Publication number
- JPH0222412A JPH0222412A JP17337888A JP17337888A JPH0222412A JP H0222412 A JPH0222412 A JP H0222412A JP 17337888 A JP17337888 A JP 17337888A JP 17337888 A JP17337888 A JP 17337888A JP H0222412 A JPH0222412 A JP H0222412A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- heat treatment
- atmospheric gas
- treatment furnace
- retorts
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 58
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 7
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 6
- 235000011194 food seasoning agent Nutrition 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 105
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は雰囲気熱処理炉に還元性の雰囲気ガスを供給
する雰囲気ガス発生装置の運転方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of operating an atmospheric gas generator that supplies reducing atmospheric gas to an atmospheric heat treatment furnace.
一般に金属を無酸化、無脱炭または光輝焼鈍するのに第
３図に示したように周知の雰囲気ガス発生装置ａから発
熱形ガスまたは吸熱形ガス等の雰囲気ガスが炉す内に供
給されるが、その場合炉す内の雰囲気ガスのＣｏ、Ｈ，
等の還元性ガスの濃度を所要値に保つために熱処理中に
ガス発生装置ａから雰囲気ガスを定量供給し続けている
。即ち、炉内雰囲気ガスが所定の金属に対して浸炭性で
あるか脱炭性であるか、または中性であるかは、（Ｃｏ
）”／Ｃｏｔで表わされる平衡炭素濃度（ＰＦ値とも称
される）によって決まるので、このＰＦ値をその熱処理
の目的に合わせて所要値に保つべくガス発生装置から常
に雰囲気ガスを供給している。Generally, to perform non-oxidation, non-decarburization, or bright annealing of metals, atmospheric gas such as exothermic gas or endothermic gas is supplied into the furnace from a well-known atmospheric gas generator a, as shown in Figure 3. However, in that case, Co, H,
In order to maintain the concentration of reducing gases such as the above at a required value, a fixed amount of atmospheric gas is continuously supplied from the gas generator a during the heat treatment. In other words, whether the furnace atmosphere gas is carburizing, decarburizing, or neutral to a given metal is determined by (Co
)"/Cot, so atmospheric gas is constantly supplied from a gas generator to keep this PF value at the required value according to the purpose of the heat treatment. .
この場合炉内から排出される排ガスは従来そのまま大気
中に放出するか或いは焼却して放出していたが、公害の
おそれがあり、またガス発生のためのランニングコスト
が高い難点がある。In this case, the exhaust gas discharged from the inside of the furnace has conventionally been released into the atmosphere as is or has been incinerated and released, but this poses the problem of pollution and the high running cost for gas generation.
そのために、従来から第４図に示したように炉内ガスを
ブロワＣによってクーラｄ、Ｃｏｔ吸着塔ｅに循環させ
ることにより炉内雰囲気ガスのＰＦ値が保たれるように
し上記難点を解消させることもあったが、このＣＣｈを
吸着法によるときは雰囲気ガス中のＣｏ２を吸着するの
と同時にＣＯも吸着してしまうので濃度も低くなる欠点
があると共に、クーラｄを通して雰囲気ガスを常温まで
冷却してから吸着塔ｅに通さねばならないため炉に戻す
ときの雰囲気ガスの温度が低く熱エネルギーロスが大で
あること、および、吸着塔ｅの維持管理のために例えば
５〜１０分毎に配管を切換えて真空ポンプにより吸着剤
を再生させなければならないのでコストがかかると共に
再生時にＣＯも同時に排棄され無駄が多いなどの問題点
があった。To this end, conventionally, as shown in Figure 4, the furnace gas is circulated through the cooler d and the Cot adsorption tower e by the blower C, thereby maintaining the PF value of the furnace atmosphere gas and solving the above-mentioned problems. However, when using the adsorption method for this CCh, there is a drawback that the concentration becomes low because CO is also adsorbed at the same time as Co2 in the atmospheric gas is adsorbed, and the atmospheric gas is cooled to room temperature through a cooler d. The temperature of the atmospheric gas is low when it is returned to the furnace, and thermal energy loss is large because it must be passed through the adsorption tower e. Also, for maintenance of the adsorption tower e, piping must be changed every 5 to 10 minutes. Since the adsorbent has to be regenerated by a vacuum pump by switching between the two, there are problems in that it is costly and CO is also discharged at the same time during regeneration, resulting in a large amount of waste.
そこでこの発明者らは先に特願昭６２−２７２８４９号
にて被熱物を取り巻く熱処理領域の雰囲気ガスを反応領
域に導いて該反応領域にて雰囲気ガスを８５０℃以上に
加熱すると同時に炭化水素系ガスを添加し、その後該雰
囲気ガスを再び被熱物を取り巻く熱処理領域に戻すよう
にしたことを特徴とする炉内雰囲気ガス組成コントロー
ル方法の発明を特許出願し、さらに、その方法を実施す
るための雰囲気熱処理装置として、第５図に示したよう
に被熱物ｆが収容される雰囲気熱処理炉ｇと、炭化水素
系ガスが供給ガス管りから供給される反応室ｊと、該反
応室ｊに設けられたヒータにと、該雰囲気熱処理炉ｇの
雰囲気ガスを反応室ｊに循環させるプロワｎを設けてな
るものを同出願にてすでに提示しており、これらの発明
によれば雰囲気ガスを再循環させることによりランニン
グコストが大幅に低減できるなど上記の従来技術の欠点
を解消できるようになった。Therefore, the inventors previously proposed in Japanese Patent Application No. 62-272849 that they introduced the atmospheric gas in the heat treatment region surrounding the object to be heated into the reaction region, heated the atmospheric gas to 850°C or higher in the reaction region, and at the same time produced hydrocarbons. A patent application has been filed for an invention for a method for controlling the composition of a furnace atmosphere gas, which is characterized by adding a system gas and then returning the atmospheric gas to the heat treatment area surrounding the object to be heated, and the method is further implemented. As shown in FIG. 5, the atmospheric heat treatment apparatus includes an atmosphere heat treatment furnace g in which a heated object f is accommodated, a reaction chamber j to which a hydrocarbon gas is supplied from a supply gas pipe, and a reaction chamber j. The same application has already proposed a heater equipped with a heater installed in the atmosphere heat treatment furnace g and a blower n for circulating the atmospheric gas of the atmospheric heat treatment furnace g into the reaction chamber j, and according to these inventions, the atmospheric heat treatment furnace g By recirculating the fuel, running costs can be significantly reduced, and the drawbacks of the prior art described above can now be overcome.
この発明は上記特願昭６２−２７２８４９号にてすでに
提示された技術思想を基にこれをさらに改良し雰囲気ガ
ス発生装置の運転方法として具体化ならしめんとするも
のである。The present invention is based on the technical idea already presented in the above-mentioned Japanese Patent Application No. 1983-272849, and is intended to be further improved and realized as a method of operating an atmospheric gas generator.
この発明の雰囲気ガス発生装置の運転方法は、上記目的
を達成するため、複数のレトルトを有した雰囲気ガス発
生装置を熱処理炉に付帯設備し、熱処理炉内のシーズニ
ング時には該雰囲気ガス発生装置の全レトルトにて新規
に雰囲気ガスを発生させ該雰囲気ガスを熱処理炉に供給
することにより該熱処理炉内をガス置換し、その雰囲気
ガスの基で熱処理炉内の被熱物を加熱処理する過程では
雰囲気ガス発生装置の少なくとも１個のレトルトにて新
規に雰囲気ガスを発生させ該雰囲気ガスを熱処理炉に補
給すると同時に、熱処理炉から排出させる雰囲気ガスに
炭化水素系ガスを添加してこれを雰囲気ガス発生装置の
他のレトルトにて反応させることにより該雰囲気ガスを
再生して熱処理炉に循環させるようにしたことを特徴と
したちのである。In order to achieve the above object, the method for operating an atmospheric gas generator of the present invention is to provide an atmospheric gas generator having a plurality of retorts attached to a heat treatment furnace, and when seasoning the heat treatment furnace, all of the atmospheric gas generators are operated. In the process of generating new atmospheric gas in a retort and supplying the atmospheric gas to the heat treatment furnace, the inside of the heat treatment furnace is replaced with gas. Generate new atmospheric gas in at least one retort of the gas generator and supply the atmospheric gas to the heat treatment furnace, and at the same time add hydrocarbon gas to the atmospheric gas discharged from the heat treatment furnace to generate atmospheric gas. The apparatus is characterized in that the atmospheric gas is regenerated by causing a reaction in another retort of the apparatus and then circulated to the heat treatment furnace.
全レトルトにて雰囲気ガスを発生させることにより大量
の雰囲気ガスが熱処理炉に供給できガス置換が短時間で
なされる。また、該熱処理炉にて被熱物を加熱処理する
過程では該雰囲気ガス発生装置の少なくとも１個のレト
ルトで補給用に少しの雰囲気ガスを発生させるだけで、
他のレトルトは熱処理炉内の雰囲気ガスを再生するのに
使用できるのでガス消費量を大幅に低減することができ
る。By generating atmospheric gas in all retorts, a large amount of atmospheric gas can be supplied to the heat treatment furnace, and gas replacement can be accomplished in a short time. In addition, in the process of heat treating the object to be heated in the heat treatment furnace, only a small amount of atmospheric gas is generated for replenishment using at least one retort of the atmospheric gas generator.
Other retorts can be used to regenerate the atmospheric gas in the heat treatment furnace, thereby significantly reducing gas consumption.
次に図面（第１図、第２図）と共にこの発明の一実施例
を説明する。図において、１は被熱物２が装入されるバ
ッチ式或いは連続式の熱処理炉（熱源は図示せず）であ
る、３は該熱処理炉１に付帯設備した雰囲気ガス発生装
置である。雰囲気ガス発生装置３はヒータ４ａ、４ｂを
配した炉体４内に５個のＵ字管状のレトルト５ａ〜５ｅ
が並設され、該各レトルト内には化学反応を促進するた
めの白金製の粒状触媒が充填されている。６はバルブ７
とバルブ８とにより、原料ガス（ここではＬＰガス）と
空気との混合比率が空燃比１以下の空気不足状態に調整
された混合ガスを各レトルト５２〜５ｅに夫々バルブ９
ａ〜９ｅを介して供給する混合ガス供給管、１０はレト
ル１−５ａにてこの混合ガスを加熱することにより発生
する吸熱形の雰囲気ガスを熱処理炉１に供給する給ガス
管、１１はレトルト５ａ〜５ｅにて発生した吸熱形の雰
囲気ガスを同様に熱処理炉１に供給するための給ガス管
である。また、１２は熱処理炉１内の雰囲気ガスを吸引
しバルブ１３ｂ〜１３８を介して各レトル）５ｂ〜５ｅ
にその吸引した雰囲気ガスを供給するブロワである。さ
らに１４は雰囲気ガス再生に用いる炭化水素系ガス（例
えばＬＰガス）をバルブ１５ｂ〜１５ｅを介してレトル
ト５ｂ〜５ｅに供給できるようにしたエンリッチガス供
給管である。Next, an embodiment of the present invention will be described with reference to the drawings (FIGS. 1 and 2). In the figure, 1 is a batch-type or continuous-type heat treatment furnace (heat source not shown) into which a material to be heated 2 is charged, and 3 is an atmospheric gas generator attached to the heat treatment furnace 1. The atmospheric gas generator 3 includes five U-shaped tubular retorts 5a to 5e in a furnace body 4 equipped with heaters 4a and 4b.
are arranged in parallel, and each retort is filled with a granular platinum catalyst for promoting chemical reactions. 6 is valve 7
and valve 8, a mixed gas adjusted to an air-deficient state with a mixture ratio of raw material gas (LP gas in this case) and air of 1 or less is supplied to each retort 52 to 5e through valve 9, respectively.
a to 9e, a mixed gas supply pipe 10 supplies endothermic atmospheric gas generated by heating the mixed gas in the retort 1-5a to the heat treatment furnace 1, and 11 a retort. This is a gas supply pipe for similarly supplying the endothermic atmospheric gas generated in 5a to 5e to the heat treatment furnace 1. In addition, 12 sucks the atmospheric gas in the heat treatment furnace 1 and passes it through valves 13b to 138 to each rettle (5b to 5e).
This is a blower that supplies the sucked atmospheric gas to the Furthermore, 14 is an enriched gas supply pipe that can supply hydrocarbon gas (for example, LP gas) used for atmospheric gas regeneration to the retorts 5b to 5e via valves 15b to 15e.
しかしてこのように熱処理炉１に対し雰囲気ガス発生装
置３を配管した装置にては、いま熱処理炉内のシーズニ
ング時には、第１図にガスの流れを太線で示したように
バルブ９ａ〜９ｅを開けてレトル１−５ａ〜５ｅに混合
ガスを供給し該レトルト５ａ〜５ｅを炉体４内で加熱す
ることにより該各レトルト内で混合ガスを吸熱反応させ
Ｃｏ、Ｈ。However, in the apparatus in which the atmospheric gas generator 3 is connected to the heat treatment furnace 1, when seasoning the heat treatment furnace, the valves 9a to 9e are turned on as shown in FIG. By opening the retorts 1-5a to 5e and supplying the mixed gas to them and heating the retorts 5a to 5e in the furnace body 4, the mixed gas is subjected to an endothermic reaction in each retort to produce Co and H.
等の還元性ガス１度の高い吸熱形雰囲気ガスを発生させ
この雰囲気ガスを給ガス管１０および給ガス管１１を通
して熱処理炉１内に供給する。こうして炉内シーズニン
グ時に全部のレトルト５ａ〜５ｅにて雰囲気ガスを発生
させそれを熱処理炉１に供給することで熱処理炉１内を
短時間でガス置換することができる。続いてその雰囲気
ガスの基で熱処理炉１内の被熱物２を加熱処理する過程
では、第２図にガスの流れを太線で示したようにレトル
ト５ａについてはそのまま雰囲気ガスを発生させ給ガス
管１０を通して熱処理炉１に該雰囲気ガスを供給し続け
ることで熱処理炉１の炉壁或いは入口扉等からのガス漏
洩により不足する雰囲気ガスを補給させるが、レトルト
５ｂ〜５ｅについてはバルブ９ｂ〜９ｅを閉じることに
より新らたな雰囲気ガス発生は停止させ、かわりにブロ
ワ１２を運転しバルブ１３ｂ〜１３ｅを開き、熱処理炉
１内から雰囲気ガスを吸引すると共に、バルブ１５ｂ〜
ｔｓｅを開いてエンリッチガスをこの熱処理炉１内から
吸引した雰囲気ガスに添加して、これをレトルト５ｂ〜
５ｅに供給する。熱処理炉１内よりブロワ１２を通して
排出させる雰囲気ガスは被熱物２との反応等によりｃｏ
、、Ｈ２Ｏ等の酸化性ガスの７４度が一卜昇しているが
、これに例えばブタンガスのような炭化水素系ガスを添
加してレトルｌ−５ｂ〜５ｅに供給することで次の反応
が起きてＧｏ、Ｈ。A highly endothermic atmospheric gas with a reducing gas temperature of 1 degree Celsius is generated, and this atmospheric gas is supplied into the heat treatment furnace 1 through the gas supply pipe 10 and the gas supply pipe 11. In this way, by generating atmospheric gas in all the retorts 5a to 5e and supplying it to the heat treatment furnace 1 during furnace seasoning, the inside of the heat treatment furnace 1 can be replaced with gas in a short time. Subsequently, in the process of heat-treating the object 2 in the heat treatment furnace 1 using the atmospheric gas, the retort 5a generates the atmospheric gas as it is, and the supply gas is By continuing to supply the atmospheric gas to the heat treatment furnace 1 through the tube 10, the atmospheric gas that is insufficient due to gas leakage from the furnace wall or entrance door of the heat treatment furnace 1 can be replenished. By closing the , new atmospheric gas generation is stopped, and instead, the blower 12 is operated and the valves 13b to 13e are opened to suck the atmospheric gas from inside the heat treatment furnace 1, and the valves 15b to 15b are closed.
tse is opened and enriched gas is added to the atmospheric gas sucked from inside the heat treatment furnace 1, and this is added to the retorts 5b to 5b.
5e. Atmospheric gas discharged from the heat treatment furnace 1 through the blower 12 becomes CO2 due to reaction with the object to be heated 2, etc.
,, The temperature of oxidizing gas such as H2O has risen by 74 degrees, but by adding a hydrocarbon gas such as butane gas to this gas and supplying it to rettle l-5b to 5e, the next reaction can be carried out. Wake up and go, H.
等の還元性ガスの濃度が上がる。The concentration of reducing gases such as
Ｃ，Ｈ，。＋４ＣＯ，→８ ＣＯ＋ ５ ＨｚＣａＨＩ
ｏ＋４Ｈ２０→４ ＣＯ＋ ９ Ｈアこの結果、熱処理
炉ｌから吸引した雰囲気ガス中のｃｏ、、Ｈ，ｏｔＭ度
が１〜３％であったものが、このレトルト５ｂ〜５ｅを
通過させることにより０．１〜０．２％に夫々低減でき
ＰＦ値を大幅に上昇させて熱処理炉１に循環させること
ができた。C.H. +4CO, →8 CO+ 5 HzCaHI
o+4H20 → 4 CO+ 9 H As a result, the CO, H, otM degree in the atmospheric gas sucked from the heat treatment furnace 1 is 1 to 3%, by passing through the retorts 5b to 5e, it becomes 0. It was possible to reduce the PF value to 1% to 0.2%, significantly increase the PF value, and circulate it in the heat treatment furnace 1.
以上説明したようにこの発明に係る雰囲気ガス発生装置
の運転方法は、熱処理炉内のシーズニング時で大量に雰
囲気ガスを必要とするときは雰囲気ガス発生装置の全レ
トルトにて新規に雰囲気ガスを発生させることで短時間
でガス置換することを可能にし作業性を向上させると共
に、その後の熱処理時には複数のレトルトのうち少なく
とも１個はそのまま雰囲気ガスを補給するのに使用し他
のレトルトは熱処理炉内の雰囲気ガスを再生するのに使
用するので、原料ガスの消費量および排棄量が大幅に低
減できランニングコスト低減、公害防止になると同時に
、−台の雰囲気ガス発生装置を雰囲気ガスの発生と再生
とに共用できるのでわずかな設備費で稼動できるなど非
常に有益なものである。As explained above, in the operating method of the atmospheric gas generator according to the present invention, when a large amount of atmospheric gas is required during seasoning in the heat treatment furnace, atmospheric gas is newly generated in all retorts of the atmospheric gas generator. By doing so, it is possible to replace the gas in a short time, improving work efficiency, and during subsequent heat treatment, at least one of the multiple retorts is used as it is to replenish the atmospheric gas, and the other retorts are placed inside the heat treatment furnace. Because it is used to regenerate atmospheric gas, the consumption and waste amount of raw material gas can be significantly reduced, running costs are reduced, and pollution is prevented. It is very useful because it can be shared with other users and can be operated with a small equipment cost.
第１図および第２図はこの発明の一実施例を示した雰囲
気ガス発生装置と熱処理炉との配管系統図である。第３
図乃至５図は従来の雰囲気ガスの流れを示した配管系統
図である。
１・・・熱処理炉、２・・・被熱物、３・・・雰囲気ガ
ス発生装置、４ａ、４ｂ・・・ヒータ、５ａ〜５ｅ・・
・レトルト、６・・・混合ガス供給管１，７．８・・・
バルブ、９３〜９ｅ・・・バルブ、ｔｏ、 １１・・・
給ガス管、１２・・・ブロワ、１３ｂ〜１３ｅ・・・バ
ルブ、
１４・・・エンリッチガス
供給管、１５ｂ〜１５６・・・バルブ。FIGS. 1 and 2 are piping system diagrams of an atmospheric gas generator and a heat treatment furnace showing one embodiment of the present invention. Third
Figures 5 through 5 are conventional piping system diagrams showing the flow of atmospheric gas. DESCRIPTION OF SYMBOLS 1... Heat treatment furnace, 2... Heated object, 3... Atmosphere gas generator, 4a, 4b... Heater, 5a-5e...
・Retort, 6... Mixed gas supply pipe 1, 7.8...
Valve, 93-9e...Valve, to, 11...
Gas supply pipe, 12...Blower, 13b-13e...Valve, 14...Enriched gas supply pipe, 15b-156...Valve.
Claims (1)
に付帯設備し、熱処理炉内のシーズニング時には該雰囲
気ガス発生装置の全レトルトにて新規に雰囲気ガスを発
生させ該雰囲気ガスを熱処理炉に供給することにより該
熱処理炉内をガス置換し、その雰囲気ガスの基で熱処理
炉内の被熱物を加熱処理する過程では雰囲気ガス発生装
置の少なくとも１個のレトルトにて新規に雰囲気ガスを
発生させ該雰囲気ガスを熱処理炉に補給すると同時に、
熱処理炉から排出させる雰囲気ガスに炭化水素系ガスを
添加してこれを雰囲気ガス発生装置の他のレトルトにて
反応させることにより該雰囲気ガスを再生して熱処理炉
に循環させるようにしたことを特徴とする雰囲気ガス発
生装置の運転方法。An atmospheric gas generator having a plurality of retorts is attached to the heat treatment furnace, and when seasoning the heat treatment furnace, new atmospheric gas is generated in all the retorts of the atmospheric gas generator and the atmospheric gas is supplied to the heat treatment furnace. In the process of replacing the atmosphere in the heat treatment furnace with gas, and heat-treating the object to be heated in the heat treatment furnace using the atmosphere gas, a new atmosphere gas is generated in at least one retort of the atmosphere gas generator. At the same time as atmospheric gas is supplied to the heat treatment furnace,
A feature is that a hydrocarbon gas is added to the atmospheric gas discharged from the heat treatment furnace, and this is reacted in another retort of the atmospheric gas generator to regenerate the atmospheric gas and circulate it to the heat treatment furnace. How to operate an atmospheric gas generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17337888A JP2701334B2 (en) | 1988-07-12 | 1988-07-12 | Operating method of atmospheric gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17337888A JP2701334B2 (en) | 1988-07-12 | 1988-07-12 | Operating method of atmospheric gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222412A true JPH0222412A (en) | 1990-01-25 |
| JP2701334B2 JP2701334B2 (en) | 1998-01-21 |
Family
ID=15959285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17337888A Expired - Lifetime JP2701334B2 (en) | 1988-07-12 | 1988-07-12 | Operating method of atmospheric gas generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2701334B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430036U (en) * | 1990-07-04 | 1992-03-11 | ||
| JP2009156513A (en) * | 2007-12-26 | 2009-07-16 | Daido Plant Kogyo Kk | Endothermic gas generating device |
-
1988
- 1988-07-12 JP JP17337888A patent/JP2701334B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0430036U (en) * | 1990-07-04 | 1992-03-11 | ||
| JP2009156513A (en) * | 2007-12-26 | 2009-07-16 | Daido Plant Kogyo Kk | Endothermic gas generating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2701334B2 (en) | 1998-01-21 |
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