JPS5840996Y2 - Pusher type heating furnace - Google Patents
Pusher type heating furnaceInfo
- Publication number
- JPS5840996Y2 JPS5840996Y2 JP7536580U JP7536580U JPS5840996Y2 JP S5840996 Y2 JPS5840996 Y2 JP S5840996Y2 JP 7536580 U JP7536580 U JP 7536580U JP 7536580 U JP7536580 U JP 7536580U JP S5840996 Y2 JPS5840996 Y2 JP S5840996Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating
- heated
- furnace
- skid rail
- burner
- 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
Description
【考案の詳細な説明】
この考案は、主に自動車用部品や工具などを生産する鍛
造工場で一般に広く採用されているブツシャ式加熱炉に
関するものである。[Detailed description of the invention] This invention relates to a butcher type heating furnace that is generally widely adopted in forging factories that mainly produce automobile parts and tools.
従来のブツシャ式加熱炉は、第３図に示すように、被加
熱物Ｗを装入する側の炉外に空気シリンダ１１０などを
主体とする押し込み装置１０９を設け、スキッドレール
１０８上に押し込まれた被加熱物Ｗが、前記押し込み装
置１０９によってトンネル型をした加熱空間１０４の予
熱帯１０５を順次図示右方へ繰り送られ、かつ前記加熱
空間１０４の加熱帯１０６で鍛造温度に加熱されたのち
、入口１０１ａとは反対の出口１０１ｂから炉外へ押し
出されるようになっていた。As shown in FIG. 3, the conventional pusher type heating furnace is equipped with a pushing device 109 mainly including an air cylinder 110 outside the furnace on the side into which the object to be heated W is charged, and the object is pushed onto the skid rail 108. The object W to be heated is sequentially conveyed to the right in the drawing through the preheating zone 105 of the tunnel-shaped heating space 104 by the pushing device 109, and is heated to the forging temperature in the heating zone 106 of the heating space 104. , and was pushed out of the furnace from an outlet 101b opposite to the inlet 101a.
しかし、加熱源である油バーナ１１１が火炎を加熱帯１
０６の円形壁１０３に向けて設置されており、前記加熱
帯１０６で油バーナ１１１の火炎を燃焼せしめ、同加熱
帯１０６を輝炎輻射および前記円形壁１０３の壁面輻射
によって高温となし、その加熱帯１０６の熱伝熱により
前記スキッドレール１０Ｂ上の被加熱物Ｗを加熱してい
た。However, the oil burner 111, which is the heating source, spreads the flame to the heating zone 1.
The flame of the oil burner 111 is burnt in the heating zone 106, and the heating zone 106 is heated to a high temperature by bright flame radiation and wall radiation of the circular wall 103, and the heating zone 106 is heated to The object to be heated W on the skid rail 10B was heated by heat transfer in the tropical zone 106.
したがって、輻射伝熱を主体とする間接加熱方式であっ
たので、輻射面（円形壁１０３）の形成により、加熱帯
１０６の容積が大きくなり、炉体１０１が大型化すると
ともに、蓄熱損失が大きく、熱効率が低い一方、被加熱
物Ｗの形状、材質、量および加熱温度の変化に伴う燃焼
制御をすることが困難であった。Therefore, since the indirect heating method mainly uses radiation heat transfer, the volume of the heating zone 106 increases due to the formation of the radiation surface (circular wall 103), which increases the size of the furnace body 101 and increases heat storage loss. , while the thermal efficiency was low, it was difficult to control combustion due to changes in the shape, material, quantity, and heating temperature of the object W to be heated.
そこで、この考案の目的とするところは、炉体を小型化
し、かつ熱効率を向上し得る一方、燃焼制御のし易いブ
ツシャ式加熱炉を提供することである。Therefore, the purpose of this invention is to provide a bushing-type heating furnace that can reduce the size of the furnace body and improve thermal efficiency, while also allowing easy combustion control.
以下、この考案の一実施例を第１図および第２図１こし
たがって説明する。An embodiment of this invention will be described below with reference to FIGS. 1 and 2.
図中、１は耐火レンガなどで形成された炉体で、その炉
床２と炉天井３との間には、トンネル型状の加熱空間４
を有している。In the figure, 1 is a furnace body made of refractory bricks, etc., and between the hearth 2 and the furnace ceiling 3 is a tunnel-shaped heating space 4.
have.
しかして、その加熱空間４は入口１ａよりなだらかに下
傾された予熱帯５とその予熱帯５の終端部の加熱帯６と
からなり、また、加熱空間４の加熱帯６にはそれより急
に下傾されその下端を出口１ｂとする放出空間７が連続
状に形成されている。Therefore, the heating space 4 consists of a preheating zone 5 that is sloped gently downward from the inlet 1a and a heating zone 6 at the end of the preheating zone 5. A discharge space 7 is continuously formed, which is inclined downwardly and whose lower end serves as an outlet 1b.
８はスキッドレールで、カーボランダムレンガや高アル
ミナレンガで形成され、前記加熱空間４の炉床２上に敷
設されている。A skid rail 8 is made of carborundum brick or high alumina brick, and is laid on the hearth 2 of the heating space 4.
９は前記加熱空間４の入口１ａの炉外に設けられた押し
込み装置で、空気シリンダ１０を主体となし、前記スキ
ッドレール８の入口側に投入された被加熱物Ｗを順次繰
り送りするようになっている。Reference numeral 9 denotes a pushing device provided outside the furnace at the entrance 1a of the heating space 4, which is mainly composed of an air cylinder 10, and is configured to sequentially feed the object to be heated W introduced into the entrance side of the skid rail 8. It has become.
なお、押し込み装置９は空気シリンダ１０を主体となす
ものの他、油圧シリンダを用いるものや、カム、スクリ
ュー、チェーン、ピニオンラックなどで機械的に送るも
のでも良い。Note that the pushing device 9 mainly includes an air cylinder 10, but may also use a hydraulic cylinder, or may be mechanically fed using a cam, screw, chain, pinion rack, or the like.
１１〜１１は高温高速の火炎（熱流）を噴出し得る複数
本のガスバーナで、前記加熱空間４の加熱帯６の炉天井
３ａに対し、前記スキッドレール８上に火炎を噴出し得
るようにかつほぼ等間隔で配設されている。Reference numerals 11 to 11 designate a plurality of gas burners that can emit high-temperature, high-velocity flames (heat flow), and are designed to emit flames onto the skid rail 8 and toward the furnace ceiling 3a of the heating zone 6 of the heating space 4. They are placed at approximately equal intervals.
しかして、本例のガスバーナ１１は火炎を若干入口側に
斜向して噴出し得るようになっている。Thus, the gas burner 11 of this example is configured to eject the flame slightly obliquely toward the inlet side.
このガスバーナ１１について第２図を参照して詳述すれ
ば、円筒状をなしかつその下部外周に取付フランジ１３
を有する取付台１２に対しバーナ本体１４のバーナトッ
プ１５がセラミックウールからなるパツキン材２４を介
して設置されている。This gas burner 11 will be described in detail with reference to FIG.
A burner top 15 of a burner body 14 is installed on a mounting base 12 having a mount 12 with a packing material 24 made of ceramic wool interposed therebetween.
なお、バーナ本体１４はバーナトップ１５を主体となし
かつスパークロンド１６および混合ガス供給管（図示し
ない）の接続口１７を有する。The burner body 14 mainly includes a burner top 15 and has a spark iron 16 and a connection port 17 for a mixed gas supply pipe (not shown).
そして、前記取付台１２の下部内周の支持部１８には、
熱伝導性の良い無機質の窒化珪素を主成分として焼成さ
れた管状の中空管１９が前記バーナトップ１５と連続状
をなすように懸吊されている。The support portion 18 on the inner circumference of the lower part of the mounting base 12 includes:
A tubular hollow tube 19 made of fired inorganic silicon nitride having good thermal conductivity as a main component is suspended so as to be continuous with the burner top 15.
なお、中空管１９の内部はガス燃焼室２０となっている
一方、同中空管１９を形成している主成分の窒化珪素は
、熱伝導性が良好であるばかりでなく、熱衝撃性に強い
性質をもっている。Note that while the inside of the hollow tube 19 is a gas combustion chamber 20, silicon nitride, which is the main component forming the hollow tube 19, not only has good thermal conductivity but also has good thermal shock resistance. It has strong characteristics.
上記のガスバーナ１１の中空管１９が、前記炉天井３ａ
に燃焼空間４に通じるように貫設された貫通孔２１に嵌
挿されかつ取付台１２の取付フランジ１３が炉天井３ａ
の天井フレーム２２に固定されている。The hollow tube 19 of the gas burner 11 is connected to the furnace ceiling 3a.
The mounting flange 13 of the mounting base 12 is fitted into a through hole 21 that is formed through the furnace ceiling 3a so as to communicate with the combustion space 4.
It is fixed to the ceiling frame 22 of.
なお、図中、２３は前記加熱空間４の入口側の炉天井３
に設けられた排気孔であって、大気に連通されている。In addition, in the figure, 23 is the furnace ceiling 3 on the entrance side of the heating space 4.
This is an exhaust hole provided in the air vent, which communicates with the atmosphere.
引き続いて、上記実施例のブツシャ式加熱炉の作用およ
び効果を説明する。Subsequently, the functions and effects of the bushing type heating furnace of the above embodiment will be explained.
スキッドレール８の入口側上に投入された被加熱物Ｗは
、押し込み装置９によって順次繰り送られ、加熱空間４
の予熱帯５を前進しつつ加熱帯６に至る。The object to be heated W placed on the entrance side of the skid rail 8 is sequentially fed by the pushing device 9 into the heating space 4.
The heating zone 6 is reached while advancing through the preheating zone 5.
この加熱帯６に移動された被加熱物Ｗは、ガスバーナ１
１の高温高速の火炎、たとえば、温度が１７００〜１８
００℃で、速度が５５〜７０ｍ／秒の火炎により加熱さ
れる。The heated object W moved to this heating zone 6 is heated by the gas burner 1
1 high-temperature and high-velocity flame, for example, the temperature is 1700-18
It is heated by a flame at a temperature of 00° C. and a speed of 55-70 m/s.
その後、被加熱物Ｗは放出空間７を通って、出口１ｂよ
り放出される。Thereafter, the heated object W passes through the discharge space 7 and is discharged from the outlet 1b.
なお、被加熱物Ｗの加熱に供された排熱は、予熱帯５を
前進してくる被加熱物Ｗの予熱に利用されたのち、排気
孔２３より排出される。Note that the exhaust heat used for heating the object W to be heated is used for preheating the object W advancing through the preheating zone 5, and then is discharged from the exhaust hole 23.
上記したブツシャ式加熱炉によれば、従来と異なり、輻
射壁を形成せず、炉床２と炉天井３との間の加熱空間４
を小さく、すなわち、加熱帯６の容積を小さくシ、被加
熱物Ｗをガスバーナ１１で対流伝熱を主体とする直接加
熱方式で加熱することができる。According to the above-mentioned bushing type heating furnace, unlike the conventional one, a radiation wall is not formed, and the heating space 4 between the hearth 2 and the furnace ceiling 3 is
In other words, by reducing the volume of the heating zone 6, the object to be heated W can be heated by the gas burner 11 using a direct heating method mainly based on convective heat transfer.
よって、従来の輻射伝熱を主体とする間接加熱方式に比
し、炉体１を小型化することができるとともに蓄熱損失
を小さくシ、熱効率を向上し得る。Therefore, compared to the conventional indirect heating method mainly based on radiant heat transfer, the furnace body 1 can be downsized, heat storage loss can be reduced, and thermal efficiency can be improved.
なお、ガスバーナ１１の中空間１９のガス燃焼室２０に
て、大部分の燃焼を完結するので、前記加熱空間４を小
さくすることによる燃焼への悪影響を及ぼすことがない
。Note that since most of the combustion is completed in the gas combustion chamber 20 in the middle space 19 of the gas burner 11, reducing the size of the heating space 4 does not have an adverse effect on combustion.
また、高温高速の火炎による直接加熱方式であるから、
従来と異なり、ガスバーナ１１のインプット調整が被加
熱物Ｗの加熱具合に即時に反映し得る。In addition, since it is a direct heating method using high-temperature and high-speed flame,
Unlike the conventional method, the input adjustment of the gas burner 11 can be immediately reflected in the heating condition of the object W to be heated.
よって、被加熱物Ｗの形状、材質、量および加熱温度に
対応して、燃焼制御を容易に行うことができる。Therefore, combustion control can be easily performed depending on the shape, material, quantity, and heating temperature of the object W to be heated.
また、実施例のブツシャ式加熱炉の熱効率を測定したと
ころ、約３０〜４０％であり、一方、従来のものの熱効
率を測定したところ約１０〜２０％であった。Further, when the thermal efficiency of the bushing type heating furnace of the example was measured, it was about 30 to 40%, whereas when the thermal efficiency of the conventional one was measured, it was about 10 to 20%.
よって、実施例の熱効率が良好であることが認められた
。Therefore, it was confirmed that the thermal efficiency of the example was good.
すなわち、この考案はトンネル型に形成された加熱空間
のスキッドレールの入口側には、同スキッドレール上に
投入された被加熱物を順次繰り送るために、空気シリン
ダなどを主体としてなる押し込み装置を備えるとともに
、前記加熱空間の加熱帯の炉天井に対し火炎が下方へ噴
出し得るように取付けたバーナ本体のバーナトップには
、窒化珪素などのように熱伝導性の良い無機質を主成分
として管状成型された中空管を連続状に懸吊する一方、
前記スキッドレール上面には前記中空管の下端を対向せ
しめたブツシャ式加熱炉であるから、従来のものに比し
、炉体を小型化し、かつ熱効率を向上し得る一方、燃焼
制御を容易に行え、ブツシャ式加熱炉として益するとこ
ろ大なる考案である。That is, in this invention, a pushing device mainly consisting of an air cylinder or the like is installed on the entrance side of the skid rail of the tunnel-shaped heating space in order to sequentially feed the heated objects placed on the skid rail. At the same time, the burner top of the burner body, which is attached to the furnace ceiling of the heating zone of the heating space so that the flame can be ejected downward, is made of a tubular material mainly made of an inorganic material with good thermal conductivity such as silicon nitride. While the molded hollow tube is suspended continuously,
Since this is a bushing-type heating furnace in which the lower end of the hollow tube is opposed to the upper surface of the skid rail, the furnace body can be made smaller and the thermal efficiency can be improved compared to conventional ones, and combustion control can be easily controlled. It is a great idea that can be used as a butsusha type heating furnace.
第１図および第２図はこの考案の一実施例を示すもので
、第１図は縦断面図、第２図はガスバーナの拡大断面図
、第３図は従来例を示す縦断面図である。
１・・・・・・炉体、１ａ・・・・・・入口、１ｂ・・
・・・・出口、２・・・・・・炉床、３，３ａ・・・・
・・炉天井、４・・・・・・加熱空間、５・・・・・・
予熱帯、６・・・・・・加熱帯、８・・・・・・スキッ
ドレール、９・・・・・・押し込み装置、１１・・・・
・・ガスバーナ、１４・・・・・・バーナ本体、１５・
・・・・・バーナトップ、１９・・・・・・中空管。Figures 1 and 2 show an embodiment of this invention; Figure 1 is a longitudinal sectional view, Figure 2 is an enlarged sectional view of a gas burner, and Figure 3 is a longitudinal sectional view of a conventional example. . 1...furnace body, 1a...inlet, 1b...
...Exit, 2...Heart, 3,3a...
...Furnace ceiling, 4...Heating space, 5...
Pre-heating zone, 6... Heating zone, 8... Skid rail, 9... Pushing device, 11...
...Gas burner, 14...Burner body, 15.
...Burna top, 19...Hollow tube.
Claims (1)
口側には、同スキッドレール上に投入された被加熱物を
順次繰り送るために、空気シリンダなどを主体としてな
る押し込み装置を備えるとともに、前記加熱空間の加熱
帯の炉天井に対し火炎が下方へ噴出し得るように取付け
たバーナ本体のバーナトップには、窒化珪素などのよう
に熱伝導性の良い無機質を主成分として管状成型された
中空管を連続状に懸吊する一方、前記スキッドレール上
面には前記中空管の下端を対向せしめることを特徴とす
るブツシャ式加熱炉。On the entrance side of the skid rail of the heating space formed in a tunnel shape, a pushing device mainly consisting of an air cylinder or the like is provided in order to sequentially advance the objects to be heated that have been placed onto the skid rail. The burner top of the burner body, which is attached to the furnace ceiling in the heating zone of the space so that the flame can be ejected downward, is made of a hollow tube made mainly of an inorganic material with good thermal conductivity such as silicon nitride. A bushing type heating furnace characterized in that the tubes are suspended continuously, while the lower ends of the hollow tubes are opposed to the upper surface of the skid rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7536580U JPS5840996Y2 (en) | 1980-05-30 | 1980-05-30 | Pusher type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7536580U JPS5840996Y2 (en) | 1980-05-30 | 1980-05-30 | Pusher type heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56175147U JPS56175147U (en) | 1981-12-24 |
| JPS5840996Y2 true JPS5840996Y2 (en) | 1983-09-16 |
Family
ID=29438043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7536580U Expired JPS5840996Y2 (en) | 1980-05-30 | 1980-05-30 | Pusher type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840996Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480783A (en) * | 2013-10-12 | 2014-01-01 | 佛山市日丰企业有限公司 | Granule hot forging heating device and heating method |
-
1980
- 1980-05-30 JP JP7536580U patent/JPS5840996Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480783A (en) * | 2013-10-12 | 2014-01-01 | 佛山市日丰企业有限公司 | Granule hot forging heating device and heating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56175147U (en) | 1981-12-24 |
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