JPH01184390A - Clean heating furnace - Google Patents
Clean heating furnaceInfo
- Publication number
- JPH01184390A JPH01184390A JP921988A JP921988A JPH01184390A JP H01184390 A JPH01184390 A JP H01184390A JP 921988 A JP921988 A JP 921988A JP 921988 A JP921988 A JP 921988A JP H01184390 A JPH01184390 A JP H01184390A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- dust
- heated
- furnace gas
- gas
- 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
- 238000010438 heat treatment Methods 0.000 title claims description 14
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000007667 floating Methods 0.000 claims abstract description 8
- 239000012717 electrostatic precipitator Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000002791 soaking Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 4
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ニューセラミックスの焼成、ブラウン管製造
等、炉内ガスの清浄度を必要とするものに使用せんとす
る加熱炉に関するｔのである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heating furnace that is used for firing new ceramics, manufacturing cathode ray tubes, and other applications that require high purity gas in the furnace.
［従来の技術とその問題点］
従来、加熱炉内は外部から流入するダストのほか、セラ
ミックウール、ロックウール等の炉壁を構成する保温材
が加熱、冷却に伴い膨部、収縮することのために飛散す
るダスト、或いは炉内のコンペヤチェン等金属部分の酸
化により発生するダスト等のために多分に汚染されてい
る状況であった。ところがセンサー等に使用されるニュ
ーセラミックス等を焼成したり、ブラウン管を加熱した
りする場合等ではわずかなダストでも被熱物に付着させ
ると不良品となるので歩留りが悪いという問題点があっ
た。[Conventional technology and its problems] Conventionally, in addition to dust flowing into the heating furnace from the outside, heat insulating materials that make up the furnace walls, such as ceramic wool and rock wool, expand and contract as they are heated and cooled. There was a lot of contamination due to dust scattered by the reactor, or dust generated by oxidation of metal parts such as the conveyor chain inside the furnace. However, when firing new ceramics used in sensors, etc., or heating cathode ray tubes, there is a problem in that even a small amount of dust adheres to the heated object, resulting in a defective product, resulting in poor yields.
［問題点を解決するための手段］ 本発明は上記問題点を解決せんとするもので。[Means for solving problems] The present invention aims to solve the above problems.
ラジアントチューブバーナまたは電気発熱体等の熱源を
備えた加熱炉であって、炉内ガスを循環させ該炉内ガス
中の浮遊ダストを捕集する電気集塵機を付設してなるこ
とを特徴としたクリーン加熱炉である。A heating furnace equipped with a heat source such as a radiant tube burner or an electric heating element, and equipped with an electrostatic precipitator that circulates gas in the furnace and collects floating dust in the gas in the furnace. It is a heating furnace.
［実施例］ 次に本発明の一実施例を連続炉について説明する。[Example] Next, an embodiment of the present invention will be described using a continuous furnace.
第１図にこの連続炉の加熱ゾーンの横断面図を示す０図
において、１は炉体、２はその天井部に設けた循環ファ
ン、３は該循環ファンの下方に炉内ガスの通風路を形成
させるバックル板、４，４は該バッフル板の外側と側壁
との間隙に配設されたラジアントチューブバーナ、５は
被熱物６をトレイ、メツシュベルト７等により支持して
炉内を移動させる移送装置を示す。In Figure 1, which shows a cross-sectional view of the heating zone of this continuous furnace, 1 is the furnace body, 2 is a circulation fan installed on the ceiling, and 3 is a ventilation path for gas in the furnace below the circulation fan. A buckle plate 4, 4 is a radiant tube burner disposed in the gap between the outside of the baffle plate and the side wall, and 5 is a radiant tube burner that supports a heated object 6 with a tray, a mesh belt 7, etc. and moves it in the furnace. The transfer device is shown.
しかして、炉体ｌの側壁には電気集塵装置１８が設けら
れている。即ち、側壁の上下位置に開口８゜９を開設し
、該開口８，９を連通させるコ字形の循環路１０を炉外
に断熱材により形成すると共に、該循環路１０の鉛直な
る部分に電極となる導電性のワイヤ１１をガイシ１２よ
り垂下し、その下方にはダストポット１３を設ける。１
４．１５は開口８，９を開閉できる手動のシャッタであ
る。ダストポット１３には真空吸引装置１６のホース１
７が接続されている。Thus, an electrostatic precipitator 18 is provided on the side wall of the furnace body l. That is, openings 8°9 are opened in the upper and lower positions of the side wall, a U-shaped circulation path 10 is formed outside the furnace using a heat insulating material, and the openings 8 and 9 are communicated with each other. A conductive wire 11 is suspended from an insulator 12, and a dust pot 13 is provided below it. 1
4.15 is a manual shutter that can open and close the openings 8 and 9. The dust pot 13 is equipped with the hose 1 of the vacuum suction device 16.
7 is connected.
なおこの電気集塵装置１８は、第２図に示したようにこ
の連続炉の加熱ゾーンだけでなく均熱ゾーンにも冷却ゾ
ーンにも設けられる。As shown in FIG. 2, this electrostatic precipitator 18 is provided not only in the heating zone of this continuous furnace but also in the soaking zone and the cooling zone.
このように構成されたクリーン加熱炉では、循環ファン
２の回転により炉内ガスを第１図に破断線矢印で示した
ように循環させラジアントチューブバーナ４，４により
加熱された炉内ガスにより被熱物６を所要温度に加熱す
る。そして第３図にその温度時間スケジュールを示した
ように均熱ゾーン、冷却ゾーンを移動することにより均
熱、冷却される。炉内ガスの一部は開口８より循環路ｌ
Ｏ中に流入し該循環路を流下し開口９より炉内に戻る。In the clean heating furnace configured in this way, the circulation fan 2 rotates to circulate the furnace gas as shown by the broken line arrow in FIG. 1, and the furnace gas is heated by the radiant tube burners 4. Heat the hot object 6 to the required temperature. As shown in FIG. 3, the temperature and time schedule is shown, the temperature and time schedule is shown, and by moving between the soaking zone and the cooling zone, the heat is soaked and cooled. A part of the gas in the furnace flows through the opening 8 into the circulation path l.
It flows into the O, flows down the circulation path, and returns to the furnace through the opening 9.
そのとき電極ワイヤ１１に印加されている１〜２万ボル
トの電圧により炉内ガス中の浮遊ダストが滞電せられ、
ダストポット１３にこれが捕集できる。このため炉内を
浮遊物のない清浄な雰囲気に保つことができる。At that time, the floating dust in the furnace gas is charged with a voltage of 10,000 to 20,000 volts applied to the electrode wire 11,
This can be collected in the dust pot 13. Therefore, the inside of the furnace can be maintained in a clean atmosphere free of floating substances.
ダストポット１３に溜ったダストは必要に応じ真空吸引
装置１Ｇに吸い取られて排廃される。そのとき手動シャ
ッタ１４．１５を閉じておくことによりダストが炉内に
再飛散しないようにする。The dust accumulated in the dust pot 13 is sucked up by the vacuum suction device 1G and disposed of as necessary. At this time, the manual shutters 14, 15 are closed to prevent dust from being re-splattered into the furnace.
なお、この実施例では循環ファン２の風圧により炉内ガ
スが循環路１０に循環するようにしたが、これは別途に
循環のための小型ファンを設けてもよいし、または、循
環路１０中に小型のヒータを設けてそのドラフト効果に
より炉内ガスを循環させるようにしてもよい。In this embodiment, the gas in the furnace is circulated through the circulation path 10 by the wind pressure of the circulation fan 2. However, a small fan may be separately provided for the circulation, or a small fan may be provided for the circulation. A small heater may be provided in the furnace to circulate the gas in the furnace by its draft effect.
［発明の効果コ
以上実施例について説明したように本発明のクリーン加
熱炉は、炉内ガスを電気集塵機に＠環させることにより
炉内の浮遊ダストを捕集でき、炉内を清浄に保つことが
できるため、被熱物にダストが付着するのが可及的に防
止され、精密部品等不純物の付着を極度にきらう一熱物
の熱処理の歩留りを向上させる有益なものである。[Effects of the Invention] As explained in the embodiments above, the clean heating furnace of the present invention can collect floating dust in the furnace by circulating the gas in the furnace with an electrostatic precipitator, and can keep the inside of the furnace clean. Therefore, it is possible to prevent dust from adhering to the object to be heated as much as possible, and it is useful for improving the yield of heat treatment of objects to be heated, such as precision parts, where adhesion of impurities is extremely difficult.
図面は本発明のクリーン加熱炉の一実施例を示したもの
で、第１図は横断面図、第２図は平面図、第３図は温度
時間スケジュールを示した線図である。
１・・・・炉体、４・・・・ラジアントチューブバーナ
。
５・・・・移送装置、６・・・・被熱物、８，９・・・
・開口。
１０・・・・循環路、１１・・・・電極ワイヤ、 １４
．１５・・・・シャッタ、１８・・・・電気集塵装置。
特許出願人 大同特殊鋼株式会社
特許出願人 大同プラント工業株式会社。
代理人 弁理士 伊 蕩 毅第１図
［The drawings show an embodiment of the clean heating furnace of the present invention, in which FIG. 1 is a cross-sectional view, FIG. 2 is a plan view, and FIG. 3 is a diagram showing a temperature time schedule. 1...Furnace body, 4...Radiant tube burner. 5...transfer device, 6...heated object, 8,9...
・Opening. 10... Circulation path, 11... Electrode wire, 14
．． 15...Shutter, 18...Electrostatic precipitator. Patent applicant Daido Steel Co., Ltd. Patent applicant Daido Plant Kogyo Co., Ltd. Agent: Patent Attorney Takeshi Iboshi Figure 1 [
Claims (1)
備えた加熱炉であつて、炉内ガスを循環させ該炉内ガス
中の浮遊ダストを捕集する電気集塵機を付設してなるこ
とを特徴としたクリーン加熱炉。A heating furnace equipped with a heat source such as a radiant tube burner or an electric heating element, which is equipped with an electrostatic precipitator that circulates gas within the furnace and collects floating dust in the gas within the furnace. heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63009219A JPH0776677B2 (en) | 1988-01-18 | 1988-01-18 | Clean heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63009219A JPH0776677B2 (en) | 1988-01-18 | 1988-01-18 | Clean heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01184390A true JPH01184390A (en) | 1989-07-24 |
| JPH0776677B2 JPH0776677B2 (en) | 1995-08-16 |
Family
ID=11714326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63009219A Expired - Lifetime JPH0776677B2 (en) | 1988-01-18 | 1988-01-18 | Clean heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0776677B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0732487U (en) * | 1993-11-18 | 1995-06-16 | ロザイ工業株式会社 | DI can dryer oven |
| KR100424097B1 (en) * | 2001-06-19 | 2004-03-26 | 대한열기 주식회사 | Preheating system of brazing object for batch-type brazing furnace system |
| CN101907394A (en) * | 2010-08-25 | 2010-12-08 | 盐城市康杰机械制造有限公司 | Gas type aluminum soldering thermal debinding furnace |
| JP2012520390A (en) * | 2009-03-13 | 2012-09-06 | エープナー−インドゥストリーオーフェンバウ ゲゼルシャフト ミット ベシュレンクテル ハフツング | High temperature furnace for annealing cores |
| KR20220136115A (en) | 2021-03-31 | 2022-10-07 | 가부시키가이샤 무라타 세이사쿠쇼 | Heat treatment system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6129035U (en) * | 1984-07-27 | 1986-02-21 | 新電元工業株式会社 | Engine control device using proportional solenoid |
-
1988
- 1988-01-18 JP JP63009219A patent/JPH0776677B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6129035U (en) * | 1984-07-27 | 1986-02-21 | 新電元工業株式会社 | Engine control device using proportional solenoid |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0732487U (en) * | 1993-11-18 | 1995-06-16 | ロザイ工業株式会社 | DI can dryer oven |
| KR100424097B1 (en) * | 2001-06-19 | 2004-03-26 | 대한열기 주식회사 | Preheating system of brazing object for batch-type brazing furnace system |
| JP2012520390A (en) * | 2009-03-13 | 2012-09-06 | エープナー−インドゥストリーオーフェンバウ ゲゼルシャフト ミット ベシュレンクテル ハフツング | High temperature furnace for annealing cores |
| CN101907394A (en) * | 2010-08-25 | 2010-12-08 | 盐城市康杰机械制造有限公司 | Gas type aluminum soldering thermal debinding furnace |
| KR20220136115A (en) | 2021-03-31 | 2022-10-07 | 가부시키가이샤 무라타 세이사쿠쇼 | Heat treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0776677B2 (en) | 1995-08-16 |
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