JPH03158696A - Kiln - Google Patents
KilnInfo
- Publication number
- JPH03158696A JPH03158696A JP29923089A JP29923089A JPH03158696A JP H03158696 A JPH03158696 A JP H03158696A JP 29923089 A JP29923089 A JP 29923089A JP 29923089 A JP29923089 A JP 29923089A JP H03158696 A JPH03158696 A JP H03158696A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- combustion
- heat source
- firing
- furnace
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 63
- 238000010304 firing Methods 0.000 claims abstract description 41
- 238000005192 partition Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 239000011819 refractory material Substances 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000036284 oxygen consumption Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、セラミック製品の焼成に使用される焼成炉に
関し、炉室加熱源として燃焼熱源を用い、燃焼室と焼成
室とを隔壁によって区画することにより、燃焼熱源の燃
焼動作による干渉を阻止して、一定品質の焼成品が得ら
れるようにすると共に、熱エネルギーコストを引き下げ
ることができるようにしたものである。Detailed Description of the Invention <Industrial Application Field> The present invention relates to a firing furnace used for firing ceramic products, in which a combustion heat source is used as the furnace chamber heating source, and the combustion chamber and the firing chamber are separated by a partition wall. By doing so, it is possible to prevent interference caused by the combustion operation of the combustion heat source, to obtain a fired product of constant quality, and to reduce thermal energy costs.
〈従来の技術〉
各種電子部品等に用いられるセラミックスは、所定の磁
器粉末と有機バインダとの混合した成形品を、焼成炉を
通して焼成することによって得られる。焼成炉の炉室に
は、焼成室が設けられており、被焼成品は焼成室を通過
する際に予め設定された時間及び温度条件で焼成される
。炉室の加熱方式としては、電熱源またはバーナ等の燃
焼熱源によって直接的に加熱する加熱方式が一般的であ
る。<Prior Art> Ceramics used in various electronic components and the like are obtained by firing a molded product of a mixture of a predetermined porcelain powder and an organic binder in a firing furnace. A firing chamber is provided in the furnace chamber of the firing furnace, and the article to be fired is fired under preset time and temperature conditions when passing through the firing chamber. As a heating method for the furnace chamber, a heating method that directly heats the furnace chamber using an electric heat source or a combustion heat source such as a burner is generally used.
〈発明が解決しようとする課題〉
しかしながら、炉室の熱源として電熱源を用いた場合に
は、熱エネルギーコストが高くなり、製品のコスト高を
招く。<Problems to be Solved by the Invention> However, when an electric heat source is used as a heat source for the furnace chamber, the cost of thermal energy increases, leading to an increase in the cost of the product.
一方、燃焼熱源を用いた場合は、電熱源の場合に比較し
て熱エネルギーコストは安価であるが、被焼成品が燃焼
熱源の燃焼動作による干渉を受け、特性変動を招き易い
、予熱帯の熱源として燃焼熱源を使用した場合には、特
にこの問題を生じ易い０例えば、炉室内の温度を昇温さ
せる場合は、燃焼熱源の酸素消費が増大し、降温させる
場合には酸素消費が減少する。前述したように、セラミ
ックスは有機バインダを含んでおり、焼成炉において有
機バインダが燃焼される。ところが、炉室内の酸素消費
が燃焼熱源の昇温や、降温等によって異なるため、有機
バインダの燃焼も燃焼熱源の酸素消費の影響を受け、セ
ラミックス製品が還元されてしまう等の悪影響を及ぼす
。On the other hand, when using a combustion heat source, the thermal energy cost is lower than when using an electric heat source, but the product to be fired is subject to interference from the combustion operation of the combustion heat source, which tends to cause characteristic fluctuations. This problem is particularly likely to occur when a combustion heat source is used as a heat source.For example, when the temperature inside the furnace chamber is raised, the oxygen consumption of the combustion heat source increases, and when the temperature is lowered, the oxygen consumption decreases. . As mentioned above, ceramics contain an organic binder, and the organic binder is burned in a firing furnace. However, since the oxygen consumption in the furnace chamber varies depending on the temperature rise or fall of the combustion heat source, the combustion of the organic binder is also affected by the oxygen consumption of the combustion heat source, which has negative effects such as reduction of the ceramic product.
また、燃焼熱源による直接加熱方式の場合には、焼成品
に対する燃焼ガスの影響を回避することができす、脱バ
インダにムラが発生し、製品の割れ等の品質不良を発生
し易い。In addition, in the case of a direct heating method using a combustion heat source, it is possible to avoid the influence of combustion gas on the fired product, but uneven removal of the binder occurs, which tends to cause quality defects such as cracks in the product.
この問題点を回避するために、従来は、予熱帯では燃焼
熱源ではなく、電熱源を用いていた。このため、コスト
高になることが避けられなかった。In order to avoid this problem, conventionally, an electric heat source has been used in the preheating zone instead of a combustion heat source. For this reason, an increase in cost was unavoidable.
そこで、本発明の課題は、上述する従来の問題点を解決
し、燃焼熱源の燃焼動作による製品干渉を阻止して、一
定品質の焼成品が得られるようにすると共に、熱エネル
ギーコストの安価な焼成炉を提供することである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned conventional problems, prevent product interference due to the combustion operation of a combustion heat source, make it possible to obtain baked products of constant quality, and reduce thermal energy costs. The purpose of the present invention is to provide a firing furnace.
く課題を解決するための手段〉
上述する課題解決のため、本発明は、炉室内に焼成室を
有する焼成炉であって、
前記炉室を加熱する熱源として、前記炉室内を燃焼室と
する燃焼熱源を用い、前記燃焼室と前記焼成室とを、隔
壁によって互いに区画し、前記焼成室内の雰囲気をコン
トロールすることを特徴とする。Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides a firing furnace having a firing chamber inside the furnace chamber, wherein the furnace chamber is used as a combustion chamber as a heat source for heating the furnace chamber. The method is characterized in that a combustion heat source is used, the combustion chamber and the firing chamber are separated from each other by a partition wall, and the atmosphere inside the firing chamber is controlled.
く作用〉
炉室を加熱する熱源として、炉室内を燃焼室とする燃焼
熱源を用いるので、熱エネルギーコストが安価になる。Effect> Since a combustion heat source with a combustion chamber inside the furnace chamber is used as a heat source for heating the furnace chamber, the cost of thermal energy becomes low.
しかも、燃焼熱源の燃焼室と焼成室とを、隔壁によって
互いに区画し、焼成室内の雰囲気をコントロールできる
ようにしたので、燃焼熱源の燃焼動作による製品干渉、
例えば酸素濃度変動や排気ガスによる影響を阻止して一
定品質の焼成品が得られる。Moreover, the combustion chamber of the combustion heat source and the firing chamber are separated from each other by a partition wall, making it possible to control the atmosphere inside the firing chamber, thereby preventing product interference due to the combustion operation of the combustion heat source.
For example, a fired product of constant quality can be obtained by blocking the effects of oxygen concentration fluctuations and exhaust gas.
〈実施例〉
第１図は本発明に係る焼成炉の断面図、第２図は第１図
Ａ、−Ａ、線上における断面図である。<Example> FIG. 1 is a sectional view of a firing furnace according to the present invention, and FIG. 2 is a sectional view taken along line A and -A in FIG. 1.
１は耐火外壁、２は炉室、３は被焼成品、４は燃焼室、
５は焼成室、６は隔壁、７は燃焼器である。耐火外壁１
は、耐火レンガ等を使用してトンネル状に形成されてい
る。炉室２は耐火外壁１によって囲まれていて、その内
部には底部から適当な間隔で枕木状の耐火支持部材８が
配置されている。耐火支持部材８は、炉室２の長さ方向
に沿って、一定間隔を隔てて多数配置されており、その
上に炉室２の長さ方向に沿って、レール状の耐火支持部
材９が配置されている。1 is a fireproof outer wall, 2 is a furnace chamber, 3 is a product to be fired, 4 is a combustion chamber,
5 is a firing chamber, 6 is a partition wall, and 7 is a combustor. Fireproof outer wall 1
is formed into a tunnel shape using refractory bricks, etc. The furnace chamber 2 is surrounded by a refractory outer wall 1, and inside the furnace chamber 2, fireproof support members 8 in the form of railroad ties are arranged at appropriate intervals from the bottom. A large number of refractory support members 8 are arranged at regular intervals along the length direction of the furnace chamber 2, and a rail-shaped refractory support member 9 is placed above them along the length direction of the furnace chamber 2. It is located.
被焼成品３は、有機バインダを含むセラミック製品を耐
熱性ケースの内部に配置したものであって、通常、耐熱
性台板の上に配置されて焼成室５に沿って、矢印ａで示
す（３４２図参照）方向に連続的または間欠的に搬送さ
れる。The product to be fired 3 is a ceramic product containing an organic binder placed inside a heat-resistant case, and is usually placed on a heat-resistant base plate and placed along the firing chamber 5 as indicated by arrow a ( 342) direction) continuously or intermittently.
焼成室５内の雰囲気は、被焼成品３に対応して、炭酸ガ
ス、一酸化炭素、水蒸気または炭化水素系ガスの何れか
１ ｆｉｌを含むようにコントロールされる。またその
濃度等もコントロールされる。The atmosphere in the firing chamber 5 is controlled to contain 1 fil of carbon dioxide, carbon monoxide, water vapor, or hydrocarbon gas, depending on the product 3 to be fired. Also, its concentration etc. are controlled.
隔壁６は、燃焼室４と焼成室５とを互いに区画している
。この隔壁６は耐火材料を用いてトンネル状に構成され
ており、耐火支持部材８の上に配置されている。The partition wall 6 separates the combustion chamber 4 and the firing chamber 5 from each other. This partition wall 6 is constructed in the shape of a tunnel using a refractory material, and is arranged on a refractory support member 8 .
燃焼器７はガスバーナ、オイルバーナ等の燃焼熱源であ
り、炉室２内に設定された燃焼室４で燃焼するように配
置されている。７１はその炎を示している。実施例にお
いて、燃焼器７は、耐火外壁１の上部及び下部において
、外部から炉室２内の燃焼室４内に導入されている。燃
焼Ｉ１７の個数は任意である。The combustor 7 is a combustion heat source such as a gas burner or an oil burner, and is arranged so that combustion occurs in a combustion chamber 4 set within the furnace chamber 2 . 71 indicates the flame. In the embodiment, the combustor 7 is introduced into the combustion chamber 4 in the furnace chamber 2 from the outside at the upper and lower parts of the refractory outer wall 1 . The number of combustion I17 is arbitrary.
上述のように、炉室２を加熱する熱源として、燃焼熱源
７を用いるので、熱エネルギーコストが安価になる０例
えば、電熱源の熱エネルギーコストは１８．６円／にｃ
ａｌであるが、灯油、Ａ重油及び液化ガスを用いる燃焼
熱源の熱エネルギーコストは、それぞれ、２．４９円／
にｃａｌ、 ２． ４８円／Ｋｃａｌ、 ２．６１円
／にｃａｌとなり、熱エネルギーコストを大幅に低減で
きる。As mentioned above, since the combustion heat source 7 is used as the heat source for heating the furnace chamber 2, the thermal energy cost is low.For example, the thermal energy cost of the electric heat source is 18.6 yen/c.
al, the thermal energy cost of combustion heat sources using kerosene, A heavy oil, and liquefied gas is 2.49 yen/each.
Cal, 2. 48 yen/Kcal, 2.61 yen/cal, significantly reducing thermal energy costs.
しかも、燃焼熱源７の燃焼室４と焼成室５とを、隔壁６
によって互いに区画し、その雰囲気をコントロールする
ようにしであるので、燃焼熱源７の燃焼動作が変動した
場合でも、焼成室５内の、特に酸素濃度に対する干渉は
ない。Moreover, the combustion chamber 4 and the firing chamber 5 of the combustion heat source 7 are separated by a partition wall 6.
Since the two chambers are separated from each other and the atmosphere thereof is controlled, even if the combustion operation of the combustion heat source 7 fluctuates, there will be no interference, particularly with respect to the oxygen concentration within the firing chamber 5.
また、隔壁６を介した間接加熱となるため、脱バインダ
にムラがなくなり、割れ等の品質不良も低減される。Further, since indirect heating is performed via the partition wall 6, the binder is removed evenly and quality defects such as cracks are reduced.
燃焼室４と焼成室５とは、第２図に示すように、それぞ
れ別系統の排気路１０．１１によって排気するのが望ま
しい。本発明は、予熱帯の加熱に適用するのに好適なも
のであるが、高温帯や降温帯における加熱にも適用が可
能である。As shown in FIG. 2, the combustion chamber 4 and the firing chamber 5 are desirably exhausted through separate exhaust channels 10, 11, respectively. The present invention is suitable for application to heating in a preheating zone, but can also be applied to heating in a high temperature zone or a cooling zone.
〈発明の効果〉
以上のべたように、本発明によれば、次のような効果が
得られる。<Effects of the Invention> As described above, according to the present invention, the following effects can be obtained.
（ａ）炉室を加熱する熱源として、燃焼熱源を用いるの
で、熱エネルギーコストの安価な焼成炉を限供できる。(a) Since a combustion heat source is used as a heat source for heating the furnace chamber, a firing furnace with low thermal energy cost can be provided.
（ｂ）燃焼熱源の燃焼室と焼成室とを、隔壁によって互
いに区画し、焼成室内の雰囲気をコントロールするよう
にしたので、燃焼熱源の燃焼動作による製品干渉を阻止
して、一定品質の焼成品が得られる。(b) The combustion chamber of the combustion heat source and the firing chamber are separated from each other by a partition wall, and the atmosphere inside the firing chamber is controlled, preventing product interference due to the combustion operation of the combustion heat source and producing fired products of constant quality. is obtained.
第１図は本発明に係る焼成炉の断面図、第２図は第１図
Ａ、−Ａ、線上における部分断面図である。
２・・・炉室 ３・・・被焼成品４・・・燃
焼室 ５・・・焼成室６・・・隔壁
７・・・燃焼熱源第１図
第２図
Ａ、、ａFIG. 1 is a sectional view of a firing furnace according to the present invention, and FIG. 2 is a partial sectional view taken along line A, -A in FIG. 2... Furnace chamber 3... Product to be fired 4... Combustion chamber 5... Firing chamber 6... Partition wall
7... Combustion heat source Figure 1 Figure 2 A,,a
Claims (2)
する燃焼熱源を用い、前記燃焼室と前記焼成室とを隔壁
によって互いに区画し、前記焼成室内の雰囲気をコント
ロールすること を特徴とする焼成炉。(1) A firing furnace having a firing chamber inside the furnace chamber, wherein a combustion heat source with a combustion chamber inside the furnace chamber is used as a heat source for heating the furnace chamber, and the combustion chamber and the firing chamber are separated from each other by a partition wall. A firing furnace characterized in that the firing chamber is divided into sections and the atmosphere inside the firing chamber is controlled.
水蒸気または炭化水素系ガスの何れか１種を含むこと を特徴とする請求項１記載の焼成炉。(2) The atmosphere in the firing chamber includes carbon dioxide gas, carbon monoxide,
The kiln according to claim 1, characterized in that the kiln contains one of water vapor and hydrocarbon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29923089A JPH03158696A (en) | 1989-11-17 | 1989-11-17 | Kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29923089A JPH03158696A (en) | 1989-11-17 | 1989-11-17 | Kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03158696A true JPH03158696A (en) | 1991-07-08 |
Family
ID=17869829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29923089A Pending JPH03158696A (en) | 1989-11-17 | 1989-11-17 | Kiln |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03158696A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173605A (en) * | 1993-12-20 | 1995-07-11 | Nippon Karoraizu Kogyo Kk | Method and device for continuous pack cementation |
| JP2003021462A (en) * | 2001-07-10 | 2003-01-24 | Tdk Corp | Combustion heating furnace |
| JP2007212097A (en) * | 2006-02-13 | 2007-08-23 | Ngk Insulators Ltd | Incinerator for corrosive gas generating product |
| JP4519302B2 (en) * | 2000-10-24 | 2010-08-04 | 株式会社ダイヤメット | Sintered product manufacturing apparatus and method |
| JP2020066765A (en) * | 2018-10-23 | 2020-04-30 | 日鉄日新製鋼株式会社 | Heating method and heating apparatus of ceramic roll |
-
1989
- 1989-11-17 JP JP29923089A patent/JPH03158696A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173605A (en) * | 1993-12-20 | 1995-07-11 | Nippon Karoraizu Kogyo Kk | Method and device for continuous pack cementation |
| JP4519302B2 (en) * | 2000-10-24 | 2010-08-04 | 株式会社ダイヤメット | Sintered product manufacturing apparatus and method |
| JP2003021462A (en) * | 2001-07-10 | 2003-01-24 | Tdk Corp | Combustion heating furnace |
| JP2007212097A (en) * | 2006-02-13 | 2007-08-23 | Ngk Insulators Ltd | Incinerator for corrosive gas generating product |
| JP2020066765A (en) * | 2018-10-23 | 2020-04-30 | 日鉄日新製鋼株式会社 | Heating method and heating apparatus of ceramic roll |
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