JPWO2014163065A1 - 連続加熱炉 - Google Patents
連続加熱炉 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/068—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B1/00—Bakers' ovens
- A21B1/02—Bakers' ovens characterised by the heating arrangements
- A21B1/06—Ovens heated by radiators
- A21B1/14—Arrangement of radiators
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B1/00—Bakers' ovens
- A21B1/42—Bakers' ovens characterised by the baking surfaces moving during the baking
- A21B1/48—Bakers' ovens characterised by the baking surfaces moving during the baking with surfaces in the form of an endless band
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/243—Endless-strand conveyor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D99/0035—Heating indirectly through a radiant surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D2099/0045—Radiant burner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
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Abstract
Description
本願は、2013年4月1日に日本に出願された特願2013−75985号に基づき優先権を主張し、その内容をここに援用する。
図1は、燃焼加熱システム100の外観例を示した斜視図であり、図2は、図1のII‐II線に沿った断面を示した斜視図である。本実施形態における燃焼加熱システム100は、都市ガス等と燃焼用酸化剤ガスとしての空気とが本体容器に供給される前に混合される予混合タイプとするが、かかる場合に限定されず、所謂、拡散燃焼を行う拡散タイプであってもよい。
d=2λ・Nu1/2/(Cp・ρu・Su) …数式1
すなわち、第1輻射面120aは、被焼成物Wは、搬送部210で搬送されている被焼成物Wと遮蔽物を介さずに対向したとき被焼成物Wを加熱する。
このように、燃焼加熱システム100および冷却予熱部214は、搬送部210で搬送されている被焼成物Wと遮蔽物を介さずに対向したとき(被焼成物Wが燃焼加熱システム100または冷却予熱部214の直上または直下にあるとき)、被焼成物Wとの間で熱交換を行う。よって、燃焼加熱システム100および冷却予熱部214と被焼成物Wとの距離が、上記熱交換時に最短となり、燃焼加熱システム100および冷却予熱部214と被焼成物Wとの熱交換が、直接的かつ効果的に行われる。
ここで、図6Bに示すように、冷却予熱部214は、搬送方向及び幅方向に延びた扁平な形状をなしている。その結果、第2輻射面214aを介したガス流路214bの予熱面積を相対的に広くとることが可能となり、ガス流路214b内における燃料ガスの予熱を効果的に行うことができる。
また、燃焼加熱システム100と冷却予熱部214とを搬送方向に隣接して配することで、燃焼加熱システム100および冷却予熱部214の配置がコンパクトになり、連続加熱炉200の搬送方向の全長を短縮することが可能となる。
図10に示す連続加熱炉500では、燃焼加熱システム100の搬送方向上流側および下流側にそれぞれ冷却予熱部214を隣接させ、被焼成物Wに対する加熱と冷却とを行うユニットUを形成している。また、個々のユニットの上流側および下流側には、それぞれ遮蔽部502が設けられ、これらの遮蔽部502により、ユニットUの上流側および下流側への放熱、特に輻射による放熱を防止している。ここで、個々の遮蔽部502の具体的な構成は、図9Aに示す遮蔽部302と同様である。
この連続加熱炉500では、ユニットUを遮蔽部502で囲い、ユニットUからの放熱、特に輻射による放熱を防止することにより、ユニットUにおける加熱効率の向上と、冷却予熱部214による過冷却の防止とを図っている。
すなわち、燃焼加熱システム100と冷却予熱部214からなるユニットUを搬送方向に間隔を空けて設けた場合でも、ユニットUから、連続加熱炉500内におけるユニットUの未設置部位(図10における符号Sで示す部位)への放熱、特に輻射による放熱が、遮蔽部502により防止される。その結果、被焼成物Wに対する効果的な加熱および徐冷、ならびに冷却予熱部214における燃焼ガスの効果的な予熱が可能となる。
遮蔽部302、502の断熱性を上げるためには、断熱材を挟み込んだ鋼板パネルや真空パネル、またはセラミック等の断熱ボードの使用が考えられる。また、遮蔽部302、502の輻射率を下げるためには、光沢性のSUS板を使用したり、より高温で使用する場合(SUSでは酸化する場合)には、低輻射のガラスや白金等の金属コーティングを施す方法が考えられる。
100 燃焼加熱システム(加熱部)
120a 第1輻射面
120d、214e 一端
120e、214f 他端
200、300、400、500 連続加熱炉
210 搬送部
212 炉本体
214 冷却予熱部
214a 第2輻射面
214b ガス流路
218 調整部
302、502 遮蔽部
Claims (5)
- 炉本体と、
前記炉本体において、被焼成物を搬送する搬送部と、
燃焼によって加熱され、前記搬送部で搬送されている前記被焼成物に輻射熱を伝熱する第1輻射面を有し、前記炉本体内に前記被焼成物の搬送方向に並設された複数の加熱部と、
前記搬送部で搬送されている前記被焼成物と対向したとき前記被焼成物から輻射熱を受ける第2輻射面および第2輻射面からの熱により前記加熱部における燃焼に用いられるガスを予熱するガス流路を有する冷却予熱部と、
を備える連続加熱炉。 - 前記第1輻射面と前記第2輻射面は、前記被焼成物の搬送方向に隣り合って配され、前記搬送方向における前記第1輻射面と前記第2輻射面との間に位置し、前記搬送方向に垂直な方向において前記第1輻射面および前記第2輻射面よりも前記被焼成物の近くまで延び、前記第1輻射面と前記第2輻射面の少なくとも一方に対して垂直、または、傾斜する面を有する遮蔽部をさらに備える請求項1に記載の連続加熱炉。
- 前記第1輻射面と前記第2輻射面は、前記被焼成物の搬送方向に隣り合って配され、隣り合う前記第1輻射面と前記第2輻射面は、前記搬送方向の両端のうち、互いに近い一端側の方が、他端側よりも前記搬送部に近くなるように、前記搬送方向に対して傾斜している請求項1に記載の連続加熱炉。
- 前記第1輻射面と前記第2輻射面は、前記被焼成物の搬送方向に隣り合って配され、隣り合う前記第1輻射面と前記第2輻射面は、前記搬送方向の両端のうち、互いに近い一端側の方が、他端側よりも前記搬送部に近くなるように、前記搬送方向に対して傾斜している請求項2に記載の連続加熱炉。
- 前記被焼成物の表面温度が、前記被焼成物の中心温度以上で維持されるように、前記被焼成物の表面から前記第2輻射面への輻射熱による伝熱量を調整する調整部をさらに備えることを特徴とする請求項1から4のいずれか1項に記載の連続加熱炉。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013075985 | 2013-04-01 | ||
JP2013075985 | 2013-04-01 | ||
PCT/JP2014/059611 WO2014163065A1 (ja) | 2013-04-01 | 2014-04-01 | 連続加熱炉 |
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JP5954493B2 JP5954493B2 (ja) | 2016-07-20 |
JPWO2014163065A1 true JPWO2014163065A1 (ja) | 2017-02-16 |
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JP2015510087A Active JP5954493B2 (ja) | 2013-04-01 | 2014-04-01 | 連続加熱炉 |
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US (1) | US9982943B2 (ja) |
EP (1) | EP2982923B1 (ja) |
JP (1) | JP5954493B2 (ja) |
KR (1) | KR101837075B1 (ja) |
CN (1) | CN105164483B (ja) |
WO (1) | WO2014163065A1 (ja) |
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JP5961941B2 (ja) * | 2011-07-27 | 2016-08-03 | 株式会社Ihi | 密閉式ガスヒータおよび密閉式ガスヒータを用いた連続加熱炉 |
JP6288602B2 (ja) * | 2013-12-17 | 2018-03-07 | 株式会社Ihi | 輻射式加熱装置及び輻射式加熱方法 |
JP6446958B2 (ja) * | 2014-09-30 | 2019-01-09 | 株式会社Ihi | 連続加熱炉および輻射加熱器 |
US10291028B2 (en) | 2016-07-29 | 2019-05-14 | Cummins Power Generation Ip, Inc. | Masterless distributed power transfer control |
PL3279977T3 (pl) * | 2016-08-02 | 2020-08-24 | Ecopro Bm Co., Ltd. | Tlenek kompleksu litu do dodatniego materiału aktywnego baterii litowych ogniw wtórnych i sposób jego przygotowania |
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KR20150110649A (ko) | 2015-10-02 |
WO2014163065A1 (ja) | 2014-10-09 |
CN105164483B (zh) | 2017-03-08 |
EP2982923A1 (en) | 2016-02-10 |
CN105164483A (zh) | 2015-12-16 |
JP5954493B2 (ja) | 2016-07-20 |
US20160018161A1 (en) | 2016-01-21 |
EP2982923B1 (en) | 2019-03-13 |
EP2982923A4 (en) | 2016-11-30 |
KR101837075B1 (ko) | 2018-03-09 |
US9982943B2 (en) | 2018-05-29 |
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