JP2001012857A - Exhaust type batch oven - Google Patents
Exhaust type batch ovenInfo
- Publication number
- JP2001012857A JP2001012857A JP11181711A JP18171199A JP2001012857A JP 2001012857 A JP2001012857 A JP 2001012857A JP 11181711 A JP11181711 A JP 11181711A JP 18171199 A JP18171199 A JP 18171199A JP 2001012857 A JP2001012857 A JP 2001012857A
- Authority
- JP
- Japan
- Prior art keywords
- hot air
- exhaust
- hot
- furnace
- air
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、バッチ式熱処理
炉に関する。[0001] The present invention relates to a batch type heat treatment furnace.
【０００２】[0002]
【従来の技術】例えば、バインダーを用いて特定の形状
に成形したセラミックス成形体の脱バインダー処理や、
ゴムの２次加硫処理には、バッチ式熱処理炉が用いられ
る。この熱処理炉を用いた加熱処理は、脱バインダー処
理や加硫処理において目的とする化学反応を促進させる
ためのもので、上記バッチ式熱処理炉は、炉内全体を反
応温度に均一に保持するために用いられている。すなわ
ち、上記バッチ式熱処理炉は、炉内に設けたヒータによ
って炉内雰囲気ガスを加熱して、同じく炉内に設けたフ
ァンによって強制的に炉内雰囲気ガスを炉内に循環させ
る機構によって、炉内を均一温度に維持することができ
る。また、前記反応によって、有機溶剤などのガス状の
引火性化学物質が発生するケースでは、大気の代わりに
不活性ガスを炉内雰囲気ガスとして用いることが行われ
ている。2. Description of the Related Art For example, a binder removal treatment of a ceramic molded body formed into a specific shape using a binder,
For the secondary vulcanization of rubber, a batch type heat treatment furnace is used. The heat treatment using this heat treatment furnace is for promoting a chemical reaction intended in the binder removal treatment or vulcanization treatment, and the above batch type heat treatment furnace is for maintaining the entire furnace uniformly at a reaction temperature. It is used for That is, in the batch type heat treatment furnace, the furnace atmosphere gas is heated by a heater provided in the furnace, and the furnace atmosphere gas is forcibly circulated into the furnace by a fan also provided in the furnace. The inside can be maintained at a uniform temperature. In the case where a gaseous flammable chemical substance such as an organic solvent is generated by the above reaction, an inert gas is used as a furnace atmosphere gas instead of the air.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
バッチ式熱処理炉においては、炉内の均熱状態を維持す
るために、熱風の排気量が抑えられている。このため、
被加熱物からガス状化学物質が発生して炉内に滞留する
と、このガス状化学物質の濃度が高くなったり、ガス状
化学物質が再凝固して炉内の壁面などに付着することが
避けられない。ガス状化学物質は、種類によっては、ヒ
ータと接触することにより、引火、爆発の危険を伴うも
のがある。このため、熱処理対象を制約するか、または
防爆対策として、所定圧力でガス状化学物質を含む炉内
空気の一部を外部に排出する機構や、不活性ガスを媒体
に用いる処置が必要になり、これらの対策を行う場合に
はコストがかかる問題がある。一方、熱風の排気量を多
くして、炉内のガス状物質の濃度が高まるのを防ぐこと
が考えられるが、この場合には、温度精度の維持が困難
であるという問題がある。However, in the conventional batch type heat treatment furnace, the amount of hot air exhausted is suppressed in order to maintain a uniform temperature state in the furnace. For this reason,
If a gaseous chemical substance is generated from the object to be heated and stays in the furnace, the concentration of the gaseous chemical substance does not increase, and the gaseous chemical substance is prevented from resolidifying and adhering to the walls of the furnace. I can't. Depending on the type of gaseous chemical substance, there is a danger of ignition or explosion due to contact with the heater. For this reason, a mechanism for discharging a part of the air inside the furnace containing a gaseous chemical substance at a predetermined pressure to the outside or a measure using an inert gas as a medium are required as restrictions on the heat treatment target or explosion-proof measures. However, when these countermeasures are taken, there is a problem that costs are increased. On the other hand, it is conceivable to prevent the concentration of gaseous substances in the furnace from being increased by increasing the displacement of hot air, but in this case, there is a problem that it is difficult to maintain temperature accuracy.
【０００４】上記のような従来の問題点に鑑み、この発
明は、温度精度を維持しながら、ガス状の引火性物質を
発生する被加熱物の熱処理ができる排気型バッチ式オー
ブンを提供することを目的とする。[0004] In view of the above-mentioned conventional problems, the present invention provides an exhaust-type batch-type oven capable of heat-treating an object to be heated that generates a gaseous flammable substance while maintaining temperature accuracy. With the goal.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
のこの発明の排気型バッチ式オーブンは、壁面に通風孔
を有し、被加熱物を収納する内槽と、外気を吸引する吸
気手段と、吸引した外気を加熱するヒータとを備えた熱
風発生機構と、上記内槽を隙間を置いて収納する上部室
と、上記熱風発生機構を収納する下部室と、上記上部室
と上記下部室とを仕切る仕切り板とを備えた外槽と、上
記下部室から上記上部室に熱風を供給する熱風供給路
と、上記熱風供給路に設け、上記外槽と内槽との隙間に
熱風を循環させる攪拌ファンと、上記外槽上部に設けた
排気孔と、当該排気孔に連通された排気量調整弁とを有
する排気機構とを備えることを特徴とするものである。
上記構成の排気型バッチ式オーブンによれば、熱風の生
成を熱風発生機構により外槽の下部室で行い、この熱風
を熱風供給路を通して攪拌ファンにより上部室に供給で
きる。また、仕切り板で、上部室から下部室への熱風の
進入を防止できるので、下部室に設けた熱風発生機構の
ヒータが、上部室の内槽に載置した被加熱物から発生す
るガス状化学物質と接触することがない。また、熱風発
生機構が外気を吸引して、これを加熱するものであるの
で、この加熱された外気と、排気機構によって排出され
る一部の熱風とを置換させることができる。このため、
炉内のガス状化学物質の濃度の上昇を抑え、かつ温度精
度を維持することができる。According to the present invention, there is provided an exhaust-type batch-type oven having a ventilation hole on a wall surface for storing an object to be heated, and an intake means for sucking outside air. And a hot air generating mechanism having a heater for heating the sucked outside air, an upper chamber for housing the inner tank with a gap, a lower chamber for housing the hot air generating mechanism, the upper chamber and the lower chamber. An outer tank provided with a partition plate for partitioning the hot air from the lower chamber to the upper chamber, and a hot air supply path provided in the hot air supply path, and circulates hot air through a gap between the outer tank and the inner tank. And an exhaust mechanism having an exhaust hole provided in the upper portion of the outer tank, and an exhaust amount adjusting valve connected to the exhaust hole.
According to the exhaust-type batch-type oven having the above configuration, hot air is generated in the lower chamber of the outer tank by the hot air generating mechanism, and the hot air can be supplied to the upper chamber by the stirring fan through the hot air supply path. In addition, the partition plate can prevent hot air from entering the lower chamber from the upper chamber, so that the heater of the hot air generating mechanism provided in the lower chamber uses gas generated from an object to be heated placed in the inner tank of the upper chamber. No contact with chemicals. In addition, since the hot air generating mechanism sucks the outside air and heats it, it is possible to replace the heated outside air with a part of the hot air discharged by the exhaust mechanism. For this reason,
An increase in the concentration of the gaseous chemical substance in the furnace can be suppressed, and the temperature accuracy can be maintained.
【０００６】上記排気型バッチ式オーブンは、上記攪拌
ファンが、上記吸気手段を兼用しているのが好ましい
（請求項２）。この場合には、攪拌ファンが、外気の吸
引を行い同時に下部室から熱風を上部室に送風するの
で、攪拌ファンと別に吸気手段を設ける場合よりも省エ
ネルギーとなる。In the exhaust-type batch-type oven, it is preferable that the stirring fan also serves as the suction means. In this case, since the stirring fan sucks outside air and simultaneously blows hot air from the lower chamber to the upper chamber, energy is saved as compared with a case where a suction unit is provided separately from the stirring fan.
【０００７】上記排気型バッチ式オーブンは、上記吸気
手段が、非常電源を備え、当該非常電源によって停電時
に作動するのが好ましい（請求項２）。この場合には、
吸気手段が非常電源によって停電時に動作できるので、
停電時においても炉内にガス状化学物質を滞留させるこ
とがない。In the exhaust-type batch-type oven, it is preferable that the suction means has an emergency power supply, and the emergency means operates when a power failure occurs. In this case,
Since the intake means can be operated at the time of power failure by emergency power supply,
No gaseous chemicals remain in the furnace during a power outage.
【０００８】[0008]
【発明の実施の形態】以下この発明の実施の形態につい
て、添付図面を参照しながら詳述する。図１はこの発明
の排気型バッチ式オーブンの一つの実施の形態を示す断
面図である。この排気型バッチ式オーブンは、被加熱物
Ａを収納する内槽１と、上記内槽１と熱風を内槽１に供
給するための熱風発生機構２とを収納する外槽３と、熱
風の一部を炉外に排出する排気機構５とから構成されて
いる。Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a sectional view showing one embodiment of an exhaust-type batch oven of the present invention. The exhaust-type batch-type oven includes an inner tank 1 for storing the object to be heated A, an outer tank 3 for storing the inner tank 1 and a hot-air generating mechanism 2 for supplying hot air to the inner tank 1, and a hot-air generator. And an exhaust mechanism 5 for discharging a part of the furnace outside the furnace.
【０００９】上記外槽３は、断熱壁で構成された天井部
３ａと、床部３ｂと、両側面部３ｃ、３ｄと、後面部３
ｅと、被加熱物Ａの出し入れをするための図示しない前
面扉が上部に設けられた正面部と、上記外槽３の内部を
中間位置において、上部室３１と下部室３２とに仕切る
仕切り板４１と、下部室３２から上部室３１に熱風が流
れるのを許容する熱風供給路４２とを備えている。上記
上部室３１には内槽１が配置され、上記下部室３２には
熱風発生機構２が配置されている。The outer tub 3 includes a ceiling 3a formed of heat insulating walls, a floor 3b, both side portions 3c and 3d, and a rear portion 3a.
e, a partition plate for partitioning an upper chamber 31 and a lower chamber 32 at an intermediate position between the inside of the outer tub 3 and a front part provided with a front door (not shown) for taking in and taking out the object A to be heated. 41 and a hot air supply passage 42 that allows hot air to flow from the lower chamber 32 to the upper chamber 31. The inner chamber 1 is arranged in the upper chamber 31, and the hot air generating mechanism 2 is arranged in the lower chamber 32.
【００１０】上記内槽１は、上記外槽１の天井部３ａ
と、床部１ｂと、両側面部１ｃ、１ｄとで構成されてい
る。当該床部１ｂと上記仕切り板４１との間には、隙間
Ｓ３が設けられ、同じく当該両側面部１ｃ、１ｄと上記
外槽３の両側面部３ｃ、３ｄとの間にも、隙間Ｓ１，Ｓ
２が設けられている。上記内槽１の床部１ｂおよび両側
面部１ｃ、１ｄの前後端部は、上記外槽３の後面部３ｅ
と前面扉とに接触している。また、当該内槽１の両側面
部１ｃ、１ｄには、多数の通風孔１１が設けられてい
る。この通風孔１１によって、炉内空気は、図において
右側の隙間Ｓ１から内槽１内へ、また内槽１から左側の
隙間Ｓ２へ流れる熱風循環経路ａに沿って循環すること
ができる。The inner tank 1 is provided with a ceiling 3a of the outer tank 1.
, A floor 1b, and both side surfaces 1c and 1d. A gap S3 is provided between the floor 1b and the partition plate 41. Similarly, gaps S1, S are also provided between the side portions 1c, 1d and the side portions 3c, 3d of the outer tub 3.
2 are provided. The front and rear ends of the floor 1b and both side parts 1c and 1d of the inner tank 1 are connected to the rear part 3e of the outer tank 3.
And the front door is in contact. In addition, a large number of ventilation holes 11 are provided in both side surfaces 1c and 1d of the inner tank 1. The ventilation holes 11 allow the furnace air to circulate along the hot air circulation path a flowing from the right gap S1 into the inner tank 1 and from the inner tank 1 to the left gap S2 in the figure.
【００１１】上記熱風発生機構２は、軸流ファン２１と
ヒータ２２とを備えている。上記ヒータ２２は、上記外
槽３の下部に設けた吸気口３３から上記熱風供給路４２
に至る熱風送風経路ｂに設けられている。上記軸流ファ
ン２１は、上記吸気口３３に近接して設けられ、図示し
ない非常用電源によって停電時のみ作動する。上記吸気
口３３には、フィルタ３４が設けられ、通常は後述する
攪拌ファン４３によって、停電時には軸流ファン２１に
よって、当該フィルタ３４を通して外気を吸引しヒータ
２２に送り込む。このため、停電時にも炉内のガス状化
学物質が上記ヒータ２２に接触することがなく、安全で
ある。The hot air generating mechanism 2 has an axial fan 21 and a heater 22. The heater 22 is connected to the hot air supply passage 42 through an intake port 33 provided at a lower portion of the outer tank 3.
Is provided in a hot air blowing path b which leads to The axial fan 21 is provided in the vicinity of the intake port 33 and operates only at the time of a power failure by an emergency power supply (not shown). The intake port 33 is provided with a filter 34, which sucks outside air through the filter 34 and sends it to the heater 22 by the stirring fan 43, which will be described later, and by the axial fan 21 at the time of power failure. For this reason, the gaseous chemical substance in the furnace does not come into contact with the heater 22 even during a power outage, and safety is ensured.
【００１２】上記熱風供給路４２は、上記仕切り板４１
に隣接して、上記隙間Ｓ１の下方に設けられている。当
該熱風供給路４２には、吸気手段を兼ねる攪拌ファン４
３が設けられている。この攪拌ファン４３は、外槽３の
側面部３ｃの外側に固定されたモータ４３ａに回転可能
に連結され、外気を吸引し上記熱風発生機構２によって
生成した熱風を上記内槽１に送り込むとともに、上記内
槽１の内部を循環する熱風が上記熱風発生機構２に逆流
することを防止している。The hot air supply path 42 is connected to the partition plate 41.
And below the gap S1. In the hot air supply passage 42, a stirring fan 4 also serving as an intake unit is provided.
3 are provided. The stirring fan 43 is rotatably connected to a motor 43a fixed to the outside of the side surface portion 3c of the outer tank 3, sucks outside air, and sends hot air generated by the hot air generating mechanism 2 to the inner tank 1. The hot air circulating inside the inner tank 1 is prevented from flowing back to the hot air generating mechanism 2.
【００１３】上記外槽３の上記攪拌ファン４３と対角位
置にあるコーナーには、熱風循環経路ａを巡る熱風の一
部を排気経路ｃに沿って炉外に排出するための排気機構
５が設けられている。上記排気機構５は、排気孔５１
と、この排気孔５１に連通された排気量調整弁５２から
構成されている。上記排気量調整弁５２は、上記攪拌フ
ァン４３によって高められた炉内圧力を利用して、弁開
度を調整するだけで、循環している熱風の一部を外部に
排出できる。An exhaust mechanism 5 for exhausting a part of the hot air flowing through the hot air circulation path a to the outside of the furnace along the exhaust path c is provided at a corner of the outer tank 3 at a position diagonal to the stirring fan 43. Is provided. The exhaust mechanism 5 includes an exhaust hole 51
And an exhaust amount adjustment valve 52 connected to the exhaust hole 51. The exhaust amount adjusting valve 52 can discharge a part of the circulating hot air to the outside only by adjusting the valve opening degree using the furnace pressure increased by the stirring fan 43.
【００１４】上記構成であれば、攪拌ファン４３によっ
て吸引した外気がヒータ２２によって加熱され、熱風と
して攪拌ファン４３によって熱風供給路４２を通して内
槽１と外槽３との間の図において右側の隙間Ｓ１に導入
される。導入された熱風は内槽１の右側面部１ｃの通風
孔１１から内槽１内に進出し、被加熱物Ａに接触してこ
れを加熱する。被加熱物Ａに接触した熱風は、順次内槽
１の左側面部１ｄの通風孔１１から隙間Ｓ２に押し出さ
れ、内槽１の床部１ｂと仕切り板４１との間の隙間Ｓ３
を通って攪拌ファン４３に達する。ここで、仕切り板４
１によって熱風発生機構２側への熱風の進入が規制され
ているため、上記攪拌ファン４３に達した熱風は、攪拌
ファン４３によって熱風発生機構２から供給された新た
な熱風とともに再び循環する。この熱風の循環によっ
て、被加熱物Ａは均一温度に保持される。一方、この循
環する熱風の一部は、排気量調整弁５２の弁開度を調整
することにより、排気孔５１を通して外部に排出され
る。このため、被加熱物Ａから発生したガス状化学物質
は、熱風とともに循環しながら外部に排出される。した
がって、炉内のガス状化学物質の濃度を高めることな
く、均一な温度を維持して、被加熱物Ａの熱処理を安全
に行うことができる。また、停電時には、軸流ファン２
１が非常用電源によって作動し、炉内のガス状化学物質
を継続して排気孔５１を通して排出できるため、停電時
においても安全を確保できる。In the above-described configuration, the outside air sucked by the stirring fan 43 is heated by the heater 22, and the gap between the inner tub 1 and the outer tub 3 between the inner tank 1 and the outer tub 3 through the hot air supply path 42 by the stirring fan 43 as hot air. Introduced to S1. The introduced hot air flows into the inner tub 1 from the ventilation holes 11 in the right side surface portion 1c of the inner tub 1 and comes into contact with the object A to be heated to heat it. The hot air that has come into contact with the object to be heated A is sequentially pushed out from the ventilation hole 11 of the left side surface 1d of the inner tank 1 into the gap S2, and the gap S3 between the floor 1b of the inner tank 1 and the partition plate 41 is formed.
To reach the stirring fan 43. Here, the partition plate 4
The hot air that has reached the stirring fan 43 is circulated again by the stirring fan 43 together with new hot air supplied from the hot air generating mechanism 2 because the entry of the hot air into the hot air generating mechanism 2 is regulated by 1. The object to be heated A is maintained at a uniform temperature by the circulation of the hot air. On the other hand, a part of the circulating hot air is discharged to the outside through the exhaust hole 51 by adjusting the valve opening of the displacement adjusting valve 52. For this reason, the gaseous chemical substance generated from the article to be heated A is discharged to the outside while circulating with the hot air. Therefore, the heat treatment of the article A to be heated can be performed safely while maintaining the uniform temperature without increasing the concentration of the gaseous chemical substance in the furnace. In the event of a power failure, the axial fan 2
1 is operated by the emergency power supply, and gaseous chemical substances in the furnace can be continuously discharged through the exhaust holes 51, so that safety can be ensured even in the event of a power failure.
【００１５】なお、上記実施の形態では、外槽３の天井
部３ａに爆発ベント６を設けている。この爆発ベント６
は安全対策として設けたものである。In the above embodiment, the explosion vent 6 is provided on the ceiling 3a of the outer tub 3. This explosion vent 6
Is provided as a safety measure.
【００１６】[0016]
【発明の効果】以上のように、請求項１に係る排気型バ
ッチ式加熱炉によれば、被加熱物から発生したガス状化
学物質がヒータに接触して引火したり、付着したりする
ことがないので、熱処理対象を拡大できるとともにメン
テナンスが容易である。また、外気を吸引して炉内のガ
ス状化学物質の濃度を希釈できるので、不活性ガスを用
いる必要がない。このためコストを低減できる。さら
に、排気される熱風を、外気を加熱した熱風で常時補充
するので、温度精度が確保できる。このため、処理の信
頼性向上が図れる。As described above, according to the exhaust-type batch heating furnace according to the first aspect, the gaseous chemical substance generated from the object to be heated contacts the heater and ignites or adheres. Since there is no heat treatment, the object of heat treatment can be expanded and maintenance is easy. Further, since the concentration of the gaseous chemical substance in the furnace can be diluted by sucking the outside air, there is no need to use an inert gas. Therefore, costs can be reduced. Further, since the hot air to be exhausted is always replenished with the hot air that heats the outside air, the temperature accuracy can be ensured. Therefore, the reliability of the processing can be improved.
【００１７】請求項２に係る排気型バッチ式加熱炉によ
れば、攪拌ファンだけで、外気の吸引と、熱風の送風お
よび循環を行うことができるので、省エネルギーによる
コストダウンができる。According to the exhaust-type batch heating furnace according to the second aspect, the suction of the outside air and the blowing and circulation of the hot air can be performed only by the stirring fan, so that the cost can be reduced by energy saving.
【００１８】請求項３に係る排気型バッチ式加熱炉によ
れば、停電時においても炉内にガス状化学物質を滞留さ
せることがないので、安全である。According to the exhaust-type batch heating furnace according to the third aspect, the gaseous chemical substance does not stay in the furnace even during a power failure, so that it is safe.
【図１】この発明の排気型バッチ式オーブンの一つの実
施の形態を示す断面図である。FIG. 1 is a sectional view showing an embodiment of an exhaust-type batch oven of the present invention.
１ 内槽 １１ 通風孔 ２ 熱風発生機構 ２１ 軸流ファン（吸気手段） ２２ ヒータ ３ 外槽 ３１ 上部室 ３２ 下部室 ４１ 仕切り板 ４２ 熱風供給路 ４３ 攪拌ファン ５ 排気機構 ５１ 排気孔 ５２ 排気量調整弁 Ｓ 隙間 Ａ 被加熱物 DESCRIPTION OF SYMBOLS 1 Inner tank 11 Ventilation hole 2 Hot air generating mechanism 21 Axial fan (intake means) 22 Heater 3 Outer tank 31 Upper chamber 32 Lower chamber 41 Partition plate 42 Hot air supply path 43 Stirring fan 5 Exhaust mechanism 51 Exhaust hole 52 Exhaust amount adjusting valve S gap A Heated object
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4F203 DA11 DB02 DC03 DC13 DL01 DL03 DM01 4K061 AA03 AA05 BA00 BA02 BA09 CA03 CA29 DA05 FA05 4K063 AA05 AA07 AA12 BA00 BA02 BA03 BA04 CA02 CA03 DA15 DA24 DA26 DA28 FA02 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F203 DA11 DB02 DC03 DC13 DL01 DL03 DM01 4K061 AA03 AA05 BA00 BA02 BA09 CA03 CA29 DA05 FA05 4K063 AA05 AA07 AA12 BA00 BA02 BA03 BA04 CA02 CA03 DA15 DA24 DA26 DA28 FA02
Claims (3)
内槽と、 外気を吸引する吸気手段と、吸引した外気を加熱するヒ
ータとを備えた熱風発生機構と、 上記内槽を隙間を置いて収納する上部室と、上記熱風発
生機構を収納する下部室と、上記上部室と上記下部室と
を仕切る仕切り板とを備えた外槽と、 上記下部室から上記上部室に熱風を供給する熱風供給路
と、 上記熱風供給路に設け、上記外槽と内槽との隙間に熱風
を循環させる攪拌ファンと、 上記外槽上部に設けた排気孔と、当該排気孔に連通され
た排気量調整弁とを有する排気機構とを備えることを特
徴とする排気型バッチ式オーブン。A hot-air generating mechanism having a ventilation hole in a wall surface for storing an object to be heated, a suction means for sucking outside air, and a heater for heating the sucked outside air; An upper chamber for housing the hot air generating mechanism, an outer tank having a partition plate for separating the upper chamber and the lower chamber, and from the lower chamber to the upper chamber. A hot-air supply path for supplying hot air, a stirring fan provided in the hot-air supply path and circulating hot air in a gap between the outer tub and the inner tub, an exhaust hole provided in the upper part of the outer tub, and communicating with the exhaust hole An exhaust-type batch-type oven, comprising: an exhaust mechanism having an exhaust volume adjusting valve.
ている請求項１記載の排気型バッチ式オーブン。2. The exhaust-type batch oven according to claim 1, wherein said stirring fan also serves as said suction means.
常電源によって停電時に作動する請求項２記載の排気型
バッチ式オーブン。3. An exhaust-type batch-type oven according to claim 2, wherein said intake means has an emergency power supply, and is operated by a power failure by said emergency power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18171199A JP3739233B2 (en) | 1999-06-28 | 1999-06-28 | Exhaust type batch oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18171199A JP3739233B2 (en) | 1999-06-28 | 1999-06-28 | Exhaust type batch oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001012857A true JP2001012857A (en) | 2001-01-19 |
| JP3739233B2 JP3739233B2 (en) | 2006-01-25 |
Family
ID=16105530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18171199A Expired - Fee Related JP3739233B2 (en) | 1999-06-28 | 1999-06-28 | Exhaust type batch oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3739233B2 (en) |
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| Publication number | Publication date |
|---|---|
| JP3739233B2 (en) | 2006-01-25 |
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