JPH0713558B2 - Batch firing furnace - Google Patents
Batch firing furnaceInfo
- Publication number
- JPH0713558B2 JPH0713558B2 JP60123350A JP12335085A JPH0713558B2 JP H0713558 B2 JPH0713558 B2 JP H0713558B2 JP 60123350 A JP60123350 A JP 60123350A JP 12335085 A JP12335085 A JP 12335085A JP H0713558 B2 JPH0713558 B2 JP H0713558B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace body
- firing
- furnace
- gas
- fired
- 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 - Lifetime
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Tunnel Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Details (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は被焼成物が炉本体内部で回転しつゝ焼成される
バッチ式焼成炉に関する。Description: TECHNICAL FIELD The present invention relates to a batch-type firing furnace in which an object to be fired is rotated and fired inside a furnace body.
（従来技術） 一般に、バッチ式焼成炉としては、被焼成物を炉本体内
部に出し入れする形式により、炉本体の側面に開口を設
け、この開口を閉塞する扉を開閉して被焼成物を炉本体
内部に出し入れする扉開閉式のものと、第３図（ａ）お
よび第３図（ｂ）に示すような炉床昇降式のものとがあ
る。(Prior Art) Generally, as a batch-type firing furnace, an opening is provided on a side surface of the furnace body by a method of loading and unloading the article to be baked into the furnace body, and a door that closes the opening is opened and closed to burn the article to be baked. There are a door opening / closing type that is put in and taken out from the inside of the main body, and a hearth raising / lowering type as shown in FIGS. 3 (a) and 3 (b).
炉床昇降式のバッチ式焼成炉は、第３図（ａ）および第
３図（ｂ）に示すように、炉本体１が底部に被焼成物２
を出し入れするための開口1aを有し、炉床３が図示しな
い油圧もしくはスクリュによる昇降機構により上昇し、
その上に載置された被焼成物２が上記開口1aより炉本体
１の内部に挿入され、炉本体１の内壁近くに井桁状に配
置された棒状の炭化珪素（SiC）等のヒータ4,4,…によ
り加熱されて焼成されるようにしたものである。被焼成
物２の焼成に必要な空気は、炉本体１の底部の開口部1a
と炉床３との間の間隙g1を通して炉本体１内に供給さ
れ、被焼成物２の焼成により発生した排ガスは、炉本体
１の上部に設けられた細孔５から炉本体１の外部に排出
される。As shown in FIGS. 3 (a) and 3 (b), the hearth raising / lowering batch type firing furnace has a furnace body 1 at the bottom of which an object to be fired 2 is placed.
Has an opening 1a for taking in and out, and the hearth 3 is raised by a hydraulic pressure (not shown) or a lifting mechanism by a screw,
The object to be fired 2 placed thereon is inserted into the inside of the furnace body 1 through the opening 1a, and rod-shaped heaters such as silicon carbide (SiC) 4 arranged in a grid pattern near the inner wall of the furnace body 1, It is designed such that it is heated by 4, ... The air necessary for firing the object to be fired 2 is the opening 1a at the bottom of the furnace body 1.
Exhaust gas that is supplied into the furnace body 1 through the gap g 1 between the furnace body 3 and the furnace floor 3 and is generated by firing the material to be fired 2 is discharged from the outside of the furnace body 1 through the pores 5 provided in the upper portion of the furnace body 1. Is discharged to.
ところで、第３図（ａ）および第３図（ｂ）のような構
成を有するバッチ式焼成炉では、炉本体１の開口1aと炉
床３との間の隙間g1から炉本体１内に導入された空気
は、被焼成物２と炉本体１の内壁1bの間の通路を自然対
流により上昇するので、炉本体１の内部全体に均一に廻
り込み難い。このため、ヒータ4,4,…から被焼成物２へ
の熱の伝達は、主として、ヒータ4,4,…からの熱輻射に
よって行われ、ヒータ4,4,…に近い位置では温度が高
く、逆に、ヒータ4,4,…から遠い位置では温度が低くな
る。また、被焼成物２の中央部には空気が廻り込み難い
ので、被焼成物２の中央部では酸素量が不足し、還元雰
囲気化される。さらに、温度の低い空気が炉本体１の下
部から炉本体１の内部に挿入されるため、炉本体１の下
部と上部の温度差も大きくなる。このように、第３図
（ａ）および第３図（ｂ）のバッチ式焼成炉では、炉本
体１の内部の温度および空気の分布が不均一になるの
で、均一な品質を有する焼成品を得るのが困難であっ
た。By the way, in the batch-type firing furnace having the configuration as shown in FIGS. 3 (a) and 3 (b), the inside of the furnace body 1 enters from the gap g 1 between the opening 1a of the furnace body 1 and the hearth 3. Since the introduced air rises by natural convection in the passage between the object to be fired 2 and the inner wall 1b of the furnace body 1, it is difficult to uniformly flow into the entire interior of the furnace body 1. Therefore, the heat is transferred from the heaters 4, 4, ... To the object to be fired 2 mainly by the heat radiation from the heaters 4, 4 ,. On the contrary, the temperature becomes low at the position far from the heaters 4, 4, .... Further, since air is difficult to flow into the central portion of the object to be fired 2, the amount of oxygen is insufficient in the central portion of the object to be fired 2 and a reducing atmosphere is created. Furthermore, since the air having a low temperature is inserted into the furnace body 1 from the lower part of the furnace body 1, the temperature difference between the lower part and the upper part of the furnace body 1 also becomes large. As described above, in the batch-type firing furnaces of FIGS. 3 (a) and 3 (b), the temperature and the air distribution inside the furnace body 1 become non-uniform, so that a fired product having uniform quality is obtained. It was difficult to get.
（発明の目的） 本発明の目的は、炉本体内部の温度のばらつきが少く、
均一な雰囲気中で被焼成物を焼成することのできるバッ
チ式焼成炉を提供することにある。(Object of the Invention) The object of the present invention is to reduce variations in temperature inside the furnace body,
An object of the present invention is to provide a batch-type firing furnace capable of firing an object to be fired in a uniform atmosphere.
（発明の構成） 上記目的を達成するため、本発明は、円形の炉床が回転
駆動されて、この炉床上に積載された匣集合体を構成し
ている焼成匣に載置された被焼成物が、炉本体内部で回
転しつつヒータにより加熱されて焼成されるようにした
バッチ式焼成炉であって、上記炉本体は炉本体底部に上
記炉床が嵌入する円形の開口を備えるとともに、炉本体
底部から炉本体上部にかけてガス供給用の細孔が形成さ
れてなるガス供給パイプが上記匣集合体の外周部に配置
され、炉本体上部の径方向略中央には内部で発生した排
ガスを排出するガス排出孔を備え、さらに上記匣集合体
の略中央には排ガスを上記ガス排出孔へ導くための中央
孔が形成されていることを特徴としている。(Structure of the Invention) In order to achieve the above object, the present invention has a circular hearth driven to rotate and to be fired placed on a firing box forming a box assembly loaded on the hearth. The thing is a batch type firing furnace that is heated by a heater and fired while rotating inside the furnace body, wherein the furnace body has a circular opening into which the hearth fits at the bottom of the furnace body, A gas supply pipe, in which pores for gas supply are formed from the bottom of the furnace body to the top of the furnace body, is arranged in the outer peripheral part of the box assembly, and the exhaust gas generated inside is disposed substantially in the radial center of the furnace body upper part. It is characterized in that it is provided with a gas discharge hole for discharging, and that a central hole for guiding the exhaust gas to the gas discharge hole is formed substantially in the center of the box assembly.
上記匣集合体は、好ましくは、半径r1の扇形から、半径
がr1よりも小さいr2の扇形部分を除去した略扇形の焼成
匣が円環状に組み合わされて形成されるとともに、上記
中央孔は上記半径がr2の扇形部分が除去された部分に形
成される半径がr2の円孔である。The Napishtim aggregate, preferably from sector radius r 1, together with a substantially fan-shaped sintered Napishtim- radius has removed a fan portion of the smaller r 2 than r 1 is formed by combining an annular, the central The hole is a circular hole having a radius of r 2 formed in the portion where the fan-shaped portion having the radius of r 2 is removed.
また、略扇形の上記焼成匣は、好ましくは、他の焼成匣
と接する部分に、上記ガス供給パイプの細孔から供給さ
れるガスを上記被焼成物へ導くとともに、上記排ガスを
上記匣集合体の略中央へ導くための側壁を有するもので
ある。Further, the substantially fan-shaped firing box, preferably, in the portion in contact with another firing box, while guiding the gas supplied from the pores of the gas supply pipe to the object to be fired, the exhaust gas is the box aggregate It has a side wall for guiding it to substantially the center.
（発明の効果） 本発明によれば、炉床が回転してその上に載置された被
焼成物が炉本体内で回転するとともに、被焼成物の周囲
にガスが吹き込まれるので、被焼成物はほゞ均質に加熱
されるとともに、炉本体内部もほゞ均一なガス雰囲気と
なる。従って、同時に熱処理される被焼成物は品質のば
らつきが少く、品質も良好なものとなる。(Effects of the Invention) According to the present invention, since the hearth is rotated and the object to be fired placed thereon is rotated in the furnace body, gas is blown around the object to be fired. The object is heated almost uniformly, and the inside of the furnace main body also becomes a substantially uniform gas atmosphere. Therefore, the objects to be fired that are heat-treated at the same time have a small variation in quality and a good quality.
また、本発明によれば、ガス供給パイプから被焼成物、
匣集合体の中央孔を経て排出孔へのガスの流れが形成さ
れるので、雰囲気ガスの供給および排ガスの排出を効率
よく効果的に行うことができる。Further, according to the present invention, the object to be fired from the gas supply pipe,
Since a gas flow is formed through the central hole of the box assembly to the discharge hole, it is possible to efficiently and effectively supply the atmospheric gas and discharge the exhaust gas.
さらに、匣集合体が略扇形の焼成匣を円環状に組み合わ
せたものとすることにより、スペース効果が高まり、多
量の被焼成物の同時焼成が一層効果的に行える。Furthermore, by using a combination of substantially fan-shaped firing boxes in a ring shape, the space effect is enhanced, and a large amount of objects to be fired can be fired more effectively at the same time.
さらにまた、焼成匣が他の焼成匣と接する部分に、ガス
供給パイプの細孔から供給されるガスを被焼成物へ導く
とともに、排ガスを匣集合体の略中央へ導くための側壁
を有するものとすることにより、被焼成物への雰囲気ガ
スの供給および排ガスの排出が一層効果的になる。Furthermore, a portion having a side wall for guiding the gas supplied from the pores of the gas supply pipe to the object to be fired and for guiding the exhaust gas to the approximate center of the box body at the portion where the firing box contacts another firing box By this, the supply of the atmospheric gas and the discharge of the exhaust gas to the object to be fired become more effective.
（実施例） 以下、添付図面を参照しつゝ本発明の実施例を説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第１図（ａ）および第１図（ｂ）において、炉本体11
は、内部に焼成空間Ｓを有する横断面形状が大略正方形
状のもので、その底部には焼成匣12内に収容された被焼
成物（図示せず。）を出し入れするための円形の開口11
aを有している。この開口11aは炉本体11の外側の開口径
が炉本体11の内側の開口径よりも大きく、開口11aの内
壁面に段部11bを有している。1 (a) and 1 (b), the furnace body 11
Has a substantially square cross section with a firing space S inside, and has a circular opening 11 at the bottom for taking in and out an article to be fired (not shown) housed in a firing box 12.
have a. The opening 11a has an opening diameter outside the furnace body 11 larger than the opening diameter inside the furnace body 11, and has a step portion 11b on the inner wall surface of the opening 11a.
上記炉本体11の炉床13は、炉本体11の開口11aの内壁と
小さい間隙g2をおいて上記開口11aに嵌合する。炉床13
は図示しない油圧シリンダもしくはスクリュにより昇降
するとともに、本焼成炉の運転中に、モータにより0.1r
pmないし3rpmの回転速度で回転駆動される昇降回転台14
上に固定されている。The hearth 13 of the furnace body 11 is fitted into the opening 11a with a small gap g 2 from the inner wall of the opening 11a of the furnace body 11. Hearth 13
Is moved up and down by a hydraulic cylinder or screw (not shown), and while the main firing furnace is operating,
Lifting platform 14 driven to rotate at pm or 3 rpm
It is fixed on.
上記炉床13には、その回転中心からほゞ等しい距離に、
アルミナ等の耐熱材料からなり、炉床13の厚みよりもや
ゝ大きな長さを有する少なくとも３本の支柱15が貫通し
て固定されている。これら支柱15の各一端は、炉床13か
ら炉本体11内に突出し、その上に焼成匣12の載置台16が
固定されている。In the hearth 13, the same distance from the center of rotation,
At least three pillars 15 made of a heat-resistant material such as alumina and having a length slightly larger than the thickness of the hearth 13 are penetrated and fixed. One end of each of the columns 15 projects from the hearth 13 into the furnace body 11, and a mounting table 16 for the firing box 12 is fixed thereon.
上記載置台16は中心部に空気流通路16aを有し、その上
に、被焼成物（図示せず。）が収容される第２図に示す
ような焼成匣12が積載される。焼成匣12は、第２図に示
すように、半径がr1の扇形から半径がr2（＜r1）の扇形
部分を除去し、長さがr1−r2の部分に側壁12a,12aを立
てたものである。本実施例では、第１図（ｂ）に示すよ
うに、上記載置台16の空気流通孔16aのまわりに、一段
当り８個の焼成匣12が配置され、炉本体11の焼成空気Ｓ
の天井近くまで積載され、匣集合体が形成される。The mounting table 16 has an air flow passage 16a in the center thereof, and a firing box 12 as shown in FIG. 2 for accommodating an article to be fired (not shown) is loaded thereon. As shown in FIG. 2, the firing box 12 has a fan-shaped portion having a radius r 1 and a fan-shaped portion having a radius r 2 (<r 1 ) removed, and the side wall 12 a, which has a length r 1 -r 2 . 12a was set up. In the present embodiment, as shown in FIG. 1 (b), eight firing boxes 12 per stage are arranged around the air circulation holes 16a of the above-mentioned mounting table 16, and the firing air S of the furnace main body 11 is arranged.
It is loaded up to near the ceiling of, and a box aggregate is formed.
上記炉本体11の焼成空間Ｓ内には、炉本体11の天井から
４本のガス供給パイプ17が円柱状に多段に積載された焼
成匣12の外周部にて炉床13近くに達するまで懸垂してい
る。このガス供給パイプ17は、炉本体11の焼成空間Ｓ内
に酸素ガス（O2）または窒素ガス（N2）あるいは水素ガ
ス（H2）もしくはこれらの混合ガス等の被焼成物の焼成
に必要な雰囲気ガスを供給するために、10個ないし20個
の細孔17aが形成されている。In the firing space S of the furnace body 11, four gas supply pipes 17 are suspended from the ceiling of the furnace body 11 at the outer periphery of the firing box 12 in which a plurality of columns are stacked in a cylindrical shape until the furnace floor 13 is reached. is doing. This gas supply pipe 17 is necessary for firing an object to be fired such as oxygen gas (O 2 ), nitrogen gas (N 2 ), hydrogen gas (H 2 ) or a mixed gas thereof in the firing space S of the furnace body 11. In order to supply various atmosphere gases, 10 to 20 pores 17a are formed.
この雰囲気ガス中で焼成される被焼成物の焼成時に生じ
る排ガスは、上記炉本体11の天井に設けられたガス排出
孔19（第１図（ａ）参照）から排出される。Exhaust gas generated during the firing of the object to be fired in this atmosphere gas is discharged from a gas discharge hole 19 (see FIG. 1A) provided in the ceiling of the furnace body 11.
一方、上記炉本体11には、その内壁面近くに、炭化珪素
（SiC）等の複数本のヒータ18が井桁状に配置されてい
る。これらヒータ18は、炉本体11内部の焼成空間Ｓの上
部と下部での温度差を小さくするため、炉本体11の上部
から下部にかけて順次密となるように配置されている。On the other hand, in the furnace body 11, a plurality of heaters 18 made of silicon carbide (SiC) or the like are arranged in a cross pattern near the inner wall surface thereof. These heaters 18 are arranged so as to become denser sequentially from the upper part to the lower part of the furnace body 11 in order to reduce the temperature difference between the upper part and the lower part of the firing space S inside the furnace body 11.
炉本体11の開口11aの段部11bと炉床13の段部13aとの間
には、セラミックウール等のシール材21が介装される。
これは、炉本体11の開口11aと炉床13との間の間隙g2か
ら炉本体11の内部に供給された雰囲気ガスや排ガスが排
出されないようにするためである。A sealing material 21 such as ceramic wool is interposed between the step 11b of the opening 11a of the furnace body 11 and the step 13a of the hearth 13.
This is to prevent the atmospheric gas and the exhaust gas supplied to the inside of the furnace body 11 from being discharged from the gap g 2 between the opening 11a of the furnace body 11 and the hearth 13.
このような構成であれば、炉本体11の内部の焼成空間Ｓ
内で、炉床13上に積載された匣集合体に載置された焼成
匣12内の被焼成物が回転する一方、炉本体11の内部の焼
成空間Ｓ内には、図示しない雰囲気ガス源に接続された
ガス供給パイプ17の細孔17aから焼成匣12に向って、炉
本体11内の熱によりガス供給パイプ17内で予熱された雰
囲気ガスが吹き込まれるので、雰囲気ガスは焼成空間Ｓ
内全体にほゞ均等に廻り込み、焼成空間Ｓ内の温度分布
はほゞ均一化される。従って、焼成匣12に収容されてい
る各被焼成物にはヒータ18から発生した熱および雰囲気
ガスが均等に与えられる。これにより、品質の良好な焼
成品を得ることができる。With such a configuration, the firing space S inside the furnace body 11
In the inside, while the material to be fired in the firing box 12 placed on the box assembly loaded on the hearth 13 rotates, in the firing space S inside the furnace body 11, an atmosphere gas source (not shown) The atmosphere gas preheated in the gas supply pipe 17 is blown into the firing space 12 from the pores 17a of the gas supply pipe 17 connected to the firing chamber 12 by the heat in the furnace body 11, so that the atmosphere gas is burned in the firing space S.
The temperature distribution in the firing space S is made almost uniform by wrapping around the inside almost evenly. Therefore, the heat generated by the heater 18 and the atmospheric gas are evenly applied to each of the objects to be fired contained in the firing box 12. This makes it possible to obtain a fired product of good quality.
上記実施例では、第２図において矢印A1で示すように、
径方向の外側から内側に向ってガスが通過することがで
きる扇形の焼成匣12を使用しているので、焼成匣12の外
側から吹き込まれた雰囲気ガスは、第１図（ａ）におい
て矢印A2で示すように、円柱状に多段に積み重ねられた
焼成匣12により形成される匣集合体の外側から内側に向
って流れて被焼成物に供給される。また、被焼成物から
発生した排ガスは、上記のように積み重ねられた焼成匣
12からなる匣集合体の中心部に形成される円孔22内を上
昇し、ガス排出孔19から排出される。これにより、被焼
成物への雰囲気ガスの供給および排ガスの排出を非常に
効率よく行うことができる。In the above embodiment, as indicated by arrow A 1 in FIG.
Since the fan-shaped firing box 12 that allows gas to pass from the outside to the inside in the radial direction is used, the atmospheric gas blown from the outside of the firing box 12 is indicated by an arrow A in FIG. 1 (a). As shown by 2 , the flow is supplied from the outside to the inside of the box assembly formed by the baking boxes 12 stacked in a columnar shape in multiple stages and supplied to the object to be baked. In addition, the exhaust gas generated from the material to be fired is the fired sack that has been stacked as described above.
It rises in a circular hole 22 formed at the center of the box assembly consisting of 12 and is discharged from a gas discharge hole 19. This makes it possible to supply the atmospheric gas to the object to be fired and exhaust the exhaust gas very efficiently.
なお、上記実施例において、棒状のヒータ18に代えて、
炉本体11の焼成空間Ｓの天井より、モリブデンシリサイ
ト等のＵ字形状のヒータ（図示せず。）を懸垂させるよ
うにしてもよい。In the above embodiment, instead of the rod-shaped heater 18,
A U-shaped heater (not shown) such as molybdenum silisite may be suspended from the ceiling of the firing space S of the furnace body 11.
第１図（ａ）は本発明に係るバッチ式焼成炉の一実施例
の縦断面図、第１図（ｂ）は第１図（ａ）のIV−IV線に
沿う断面図、第２図は第１図（ａ）および第１図（ｂ）
のバッチ式焼成炉に使用される焼成匣の斜視図、第３図
（ａ）は従来のバッチ式焼成炉の縦断面図、第３図
（ｂ）は第３図（ａ）のII−II線に沿う断面図である。 11……炉本体、11a……開口、 12……焼成匣、13……炉床、 14……昇降回転台、17……ガス供給パイプ、 17a……細孔、18……ヒータ、 19……ガス排出孔。FIG. 1 (a) is a longitudinal sectional view of an embodiment of a batch type firing furnace according to the present invention, FIG. 1 (b) is a sectional view taken along line IV-IV of FIG. 1 (a), and FIG. Is FIG. 1 (a) and FIG. 1 (b)
FIG. 3 (a) is a longitudinal sectional view of a conventional batch type firing furnace, and FIG. 3 (b) is a II-II of FIG. 3 (a). It is sectional drawing which follows the line. 11 ... Furnace body, 11a ... Opening, 12 ... Firing jar, 13 ... Hearth, 14 ... Lifting rotary table, 17 ... Gas supply pipe, 17a ... Pore, 18 ... Heater, 19 ... … Gas vents.
Claims (3)
に積載された匣集合体を構成している焼成匣に載置され
た被焼成物が、炉本体内部で回転しつつヒータにより加
熱されて焼成されるようにしたバッチ式焼成炉であっ
て、上記炉本体は炉本体底部に上記炉床が嵌入する円形
の開口を備えるとともに、炉本体底部から炉本体上部に
かけてガス供給用の細孔が形成されてなるガス供給パイ
プが上記匣集合体の外周部に配置され、炉本体上部の径
方向略中央には内部で発生した排ガスを排出するガス排
出孔を備え、さらに上記匣集合体の略中央には排ガスを
上記ガス排出孔へ導くための中央孔が形成されているこ
とを特徴とするバッチ式焼成炉。1. A circular hearth is rotatably driven, and an object to be fired placed on a firing box that constitutes a box aggregate loaded on the hearth is rotated in a furnace body while being heated. It is a batch type firing furnace that is heated and fired by means of a furnace, the furnace body having a circular opening into which the hearth fits in the bottom of the furnace body, and for supplying gas from the bottom of the furnace body to the top of the furnace body. The gas supply pipe having the pores formed therein is arranged on the outer peripheral portion of the box assembly, and a gas discharge hole for discharging exhaust gas generated inside is provided substantially at the center in the radial direction of the upper part of the furnace body. A batch type firing furnace characterized in that a central hole for guiding exhaust gas to the gas discharge hole is formed at substantially the center of the assembly.
がr1よりも小さいr2の扇形部分を除去した略扇形の焼成
匣が円環状に組み合わされて形成されるとともに、上記
中央孔は上記半径がr2の扇形部分が除去された部分に形
成される半径がr2の円孔であることを特徴とする特許請
求の範囲第１項に記載のバッチ式焼成炉。Wherein said Napishtim polymer from sector radius r 1, together with a substantially fan-shaped sintered Napishtim- radius has removed a fan portion of the smaller r 2 than r 1 is formed by combining an annular, The batch type firing furnace according to claim 1, wherein the central hole is a circular hole having a radius of r 2 formed in a portion where the fan-shaped portion having a radius of r 2 is removed.
る部分に、上記ガス供給パイプの細孔から供給されるガ
スを上記被焼成物へ導くとともに、上記排ガスを上記匣
集合体の略中央へ導くための側壁を有することを特徴と
する特許請求の範囲第２項に記載のバッチ式焼成炉。3. The substantially fan-shaped firing box guides the gas supplied from the pores of the gas supply pipe to the article to be fired in a portion in contact with another firing box, and the exhaust gas is collected in the box assembly. The batch type firing furnace according to claim 2, wherein the batch type firing furnace has a side wall for leading to substantially the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60123350A JPH0713558B2 (en) | 1985-06-05 | 1985-06-05 | Batch firing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60123350A JPH0713558B2 (en) | 1985-06-05 | 1985-06-05 | Batch firing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61282785A JPS61282785A (en) | 1986-12-12 |
| JPH0713558B2 true JPH0713558B2 (en) | 1995-02-15 |
Family
ID=14858392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60123350A Expired - Lifetime JPH0713558B2 (en) | 1985-06-05 | 1985-06-05 | Batch firing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0713558B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009250531A (en) * | 2008-04-07 | 2009-10-29 | Tokai Konetsu Kogyo Co Ltd | High speed rotating hearth type calcination furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2579760B2 (en) * | 1987-03-03 | 1997-02-12 | 住友化学工業株式会社 | Reactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59115300U (en) * | 1983-01-25 | 1984-08-03 | 東海高熱工業株式会社 | gas atmosphere furnace |
-
1985
- 1985-06-05 JP JP60123350A patent/JPH0713558B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009250531A (en) * | 2008-04-07 | 2009-10-29 | Tokai Konetsu Kogyo Co Ltd | High speed rotating hearth type calcination furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61282785A (en) | 1986-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |