JP5935977B2 - Firing method by continuous firing furnace and continuous firing furnace - Google Patents

Firing method by continuous firing furnace and continuous firing furnace Download PDF

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JP5935977B2
JP5935977B2 JP2012013844A JP2012013844A JP5935977B2 JP 5935977 B2 JP5935977 B2 JP 5935977B2 JP 2012013844 A JP2012013844 A JP 2012013844A JP 2012013844 A JP2012013844 A JP 2012013844A JP 5935977 B2 JP5935977 B2 JP 5935977B2
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furnace body
fired
capsule
pusher
product
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勝好 小谷津
勝好 小谷津
和也 麻生
和也 麻生
佳昭 山本
佳昭 山本
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Tokai Konetsu Kogyo Co Ltd
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本発明は、セラミック材からなる電子部品、炭素系材からなる二次電池負極材などの連続式焼成炉による焼成方法、詳しくは、プッシャー炉体部とローラハース炉体部を備えた炉を使用し、加熱した被焼成品から発生したガスを脱ガス処理した後、被焼成品を加熱、焼成する連続式焼成炉による焼成方法、および連続式焼成炉に関する。   The present invention relates to a firing method using a continuous firing furnace such as an electronic component made of a ceramic material, a secondary battery negative electrode material made of a carbon-based material, and more specifically, a furnace having a pusher furnace body and a roller hearth furnace body. The present invention relates to a firing method using a continuous firing furnace in which a gas generated from a heated product to be fired is degassed and then heated and fired, and a continuous firing furnace.

セラミック材からなる電子部品や、炭素系材からなる二次電池負極材など(以下、被焼成品)を連続して焼成する炉として、プッシャー炉およびローラハース炉が用いられている。プッシャー炉は、台板に載せた被焼成品を加熱するための発熱体を配設した炉本体内に、台板に載せた被焼成品を入口部からプッシャーにより炉本体内へ搬送し、出口部から取り出すよう構成されており、ローラハース炉は、同じく被焼成品を加熱するための発熱体を配設した炉本体内に、被焼成品をローラにより搬送して加熱する方式である。   A pusher furnace and a roller hearth furnace are used as furnaces for continuously firing electronic parts made of a ceramic material, secondary battery negative electrode material made of a carbon-based material and the like (hereinafter, fired products). The pusher furnace conveys the product to be fired placed on the base plate into the furnace body by the pusher from the entrance to the furnace body where the heating element for heating the product to be fired placed on the base plate is disposed, and the outlet. The roller hearth furnace is a system in which a product to be fired is transported by a roller and heated in a furnace body provided with a heating element for heating the product to be fired.

焼成される被焼成品には、被焼成品の成形時に必要なバインダーを含まれており、被焼成品の加熱、焼成時に蒸発して炉内に排出されるから、蒸発したバインダーを除去するための脱ガス処理が必要となるが、従来のプッシャー炉やローラハース炉を用いて、脱ガス、焼成を一貫して行うためには、炉長、排気方法、温度制御などの点で問題があり、これまで一つの炉内で脱ガス処理と焼成を一貫して行うことはできなかった。   In order to remove the evaporated binder, the baked product contains a binder necessary for molding the baked product and evaporates during the heating and firing of the baked product and is discharged into the furnace. However, in order to perform degassing and firing consistently using a conventional pusher furnace or roller hearth furnace, there are problems in terms of furnace length, exhaust method, temperature control, etc. Until now, it has been impossible to consistently perform degassing and firing in one furnace.

炉の前半をプッシャー方式、後半をローラハース方式とした焼成炉も提案されているが、いずれも炉の後半にローラハース方式の冷却帯を配置し、搬送ローラの回転速度を調整して冷却速度を制御するためのものであり、脱ガス、焼成を一貫して行うことを意図したものではない。   There have also been proposed firing furnaces that use the pusher method for the first half of the furnace and the roller hearth method for the second half, but in each case a roller hearth type cooling zone is placed in the latter half of the furnace, and the cooling speed is controlled by adjusting the rotation speed of the transport roller. It is intended to degas and calcinate consistently.

特許第4264928号公報Japanese Patent No. 4264828 特開平8−42975号公報JP-A-8-42975 特開2011−12823号公報JP 2011-12823 A

本発明は、被焼成品をプッシャーにより搬送して加熱するプッシャー炉体部と、被焼成品をローラにより搬送して加熱するローラハース炉体部を組み合わせた連続式焼成炉により、被焼成品の焼成における脱ガスと焼成を一貫して行うことを可能とする連続式焼成炉による焼成方法および連続式焼成炉を提供することを目的とする。   The present invention provides a continuous firing furnace that combines a pusher furnace body that transports and heats a product to be fired by a pusher and a roller hearth furnace body that heats and heats the product to be fired. An object of the present invention is to provide a firing method using a continuous firing furnace and a continuous firing furnace that can perform degassing and firing consistently.

上記の目的を達成するための請求項1による連続式焼成炉による焼成方法は、被焼成品をプッシャーにより搬送して加熱するプッシャー炉体部と、被焼成品をローラにより搬送して加熱するローラハース炉体部を備えた連続式焼成炉により被焼成品を焼成する方法であって、プッシャー炉体部においては、被焼成品を載せたトレーをそれぞれ独立した鉢状のカプセルで覆い、各カプセルを台板に載置し、台板がプッシャーによりプッシャー炉体部の床面を滑動して被焼成品を搬送し、被焼成品はカプセル内で加熱され、加熱された被焼成品から発生したガスは炉体部外に排出されて脱ガス処理され、続いて、カプセルを載置した台板を取り除き、プッシャー炉体部で脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルのみがローラハース炉体部に送られ、ローラハース炉体部において搬送ローラにより搬送して、被焼成品をカプセル内で加熱、焼成することを特徴とする。   In order to achieve the above object, a firing method using a continuous firing furnace according to claim 1 includes a pusher furnace body portion that transports and heats a fired product by a pusher, and a roller hearth that transports and heats the fired product using a roller. A method of firing a product to be fired in a continuous firing furnace provided with a furnace body portion, wherein in the pusher furnace body portion, each tray on which the product to be fired is placed is covered with an independent bowl-shaped capsule, and each capsule is covered. Placed on the base plate, the base plate slides on the floor surface of the pusher furnace body by the pusher to convey the product to be fired, the product to be fired is heated in the capsule, and the gas generated from the heated product to be fired Is discharged out of the furnace body and degassed, then the base plate on which the capsules are placed is removed, and only the capsules that cover the trays and the trays that carry the degassed products that have been degassed in the pusher furnaces Is Sent to Rahasu furnace body section, and conveyed by the conveying roller in the roller hearth furnace body portion, heated in the capsule to be fired product, and firing.

請求項2による連続式焼成炉は、被焼成品をプッシャーにより搬送するプッシャー炉体部と、被焼成品をローラにより搬送するローラハース炉体部を備えた連続式焼成炉であって、プッシャー炉体部においては、被焼成品を載せたトレーがそれぞれ鉢状のカプセルで覆われ、各カプセルが台板に載置されて、台板がプッシャーによりプッシャー炉体部の床面を滑動できるよう構成されており、プッシャー炉体部内の各カプセルの位置には、その位置にあるカプセル内の雰囲気を調整するためのガスを導入するガス導入管とガスを排出するガス排出管がそれぞれ配置され、各カプセルの位置の床面にはそれぞれ貫通穴が設けられ、該貫通穴に前記ガス導入管とガス排出管が接続され、各カプセルが位置する台板にも貫通穴が設けられてなり、台板の貫通穴と床面の貫通穴とが一致したとき、貫通穴を介してガス導入管からカプセル内に雰囲気ガスが導入されてカプセル内が設定された雰囲気に調整されるとともに、加熱された被焼成品から発生したガスをガス排出管から炉体外に排出して脱ガス処理されるよう構成され、プッシャー炉体部とローラハース炉体部との間には台板を取り除くための装置が配設され、脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルがローラハース炉体部に送られ、搬送ローラにより搬送されて、被焼成品が加熱、焼成されるよう構成されたことを特徴とする。   A continuous firing furnace according to claim 2 is a continuous firing furnace comprising a pusher furnace body portion for transporting a product to be fired by a pusher and a roller hearth furnace body portion for transporting the product to be fired by a roller. In the section, the trays on which the products to be fired are respectively covered with bowl-shaped capsules, each capsule is placed on a base plate, and the base plate can be slid on the floor surface of the pusher furnace body by a pusher. A gas introduction pipe for introducing a gas for adjusting the atmosphere in the capsule at that position and a gas discharge pipe for discharging the gas are respectively arranged at the positions of the capsules in the pusher furnace body. Each of the floor surface is provided with a through hole, the gas introduction pipe and the gas discharge pipe are connected to the through hole, and a through hole is also provided in the base plate on which each capsule is located. When the through hole of the floor and the through hole on the floor surface coincide with each other, the atmosphere gas is introduced into the capsule through the through hole and the inside of the capsule is adjusted to the set atmosphere, and the heated object is heated. The gas generated from the fired product is discharged from the gas discharge pipe to the outside of the furnace body and degassed. A device for removing the base plate is installed between the pusher furnace body and the roller hearth furnace body. The tray on which the degassed product to be fired and the capsule covering the tray are sent to the roller hearth furnace body and transported by the transport roller so that the product to be fired is heated and fired. Features.

請求項3による連続式焼成炉は、請求項2において、前記プッシャー炉体部と前記ローラハース炉体部とが、プッシャー炉体部の出口部とローラハース炉体部の入口部とを近接させて並設されてなることを特徴とする。   According to a third aspect of the present invention, there is provided the continuous firing furnace according to the second aspect, wherein the pusher furnace body and the roller hearth furnace body are arranged side by side with an outlet portion of the pusher furnace body portion and an inlet portion of the roller hearth furnace portion. It is characterized by being provided.

本発明によれば、前段に配置したプッシャー炉体部において脱ガス処理を行い、後段に配置したローラハース炉体部において焼成を行うことにより、一つの連続式焼成炉内において脱ガス、焼成を一貫して行うことが可能となる。プッシャー炉体部とローラハース炉体部とを連続して配置するから、脱ガスと焼成を個々の装置で行っていた従来方式に比べ、脱ガス後の降温に要する時間、焼成時に、室温から脱ガス温度への昇温に要する電力が不要となる。さらに、プッシャー炉体部における脱ガス処理後、カプセルを載置した台板を取り除き、プッシャー炉体部で脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルのみをローラハース炉体部に送って、加熱、焼成するようにしたので、ローラハース炉体部での加熱における台板分の熱容量が減少して、熱容量が小さくなり、ローラハース炉体部での加熱に要する使用電力が削減される。   According to the present invention, degassing treatment is performed in the pusher furnace body portion arranged in the preceding stage, and firing is performed in the roller hearth furnace body portion arranged in the subsequent stage, whereby degassing and firing are consistently performed in one continuous firing furnace. Can be performed. Since the pusher furnace body and the roller hearth furnace body are arranged continuously, compared with the conventional method in which degassing and firing are performed by individual devices, the time required for the temperature to be lowered after degassing and during the firing, the temperature is removed from room temperature. Electric power required for raising the temperature to the gas temperature becomes unnecessary. Furthermore, after degassing in the pusher furnace body, the base plate on which the capsule is placed is removed, and the tray on which the product to be fired degassed in the pusher furnace body is placed, and only the capsule covering the tray is the roller hearth furnace body Since the heat capacity of the base plate in the heating in the roller hearth furnace body portion is reduced, the heat capacity is reduced, and the power used for heating in the roller hearth furnace body portion is reduced. The

プッシャー炉体部は、被焼成品を載せたトレーが台板に載置され、台板がプッシャーによりプッシャー炉体部の床面を滑動できるよう構成されているが、本発明においては、被焼成品を載せたトレーがそれぞれ鉢状のカプセルで覆われ、プッシャー炉体部内の各カプセルの位置には、その位置にあるカプセル内の雰囲気を調整するためのガスを導入するガス導入管とガスを排出するガス排出管がそれぞれ配置され、カプセル内に雰囲気ガスが導入されてカプセル内が設定された雰囲気に調整されるとともに、加熱された処理品から発生したガスをガス排出管から炉体外に排出して脱ガス処理されるよう構成されているから、必要に応じて、各カプセル内の雰囲気を調整して、蒸発したバインダーなどを含むガスを炉材を損傷することなく効果的に炉外に排出して脱ガス処理することができる。   The pusher furnace body portion is configured such that a tray on which a product to be fired is placed is placed on a base plate, and the base plate can be slid on the floor surface of the pusher furnace body portion by the pusher. Each tray on which the product is placed is covered with a bowl-shaped capsule, and a gas introduction pipe for introducing a gas for adjusting the atmosphere in the capsule at that position and a gas are placed at the position of each capsule in the pusher furnace body. Each gas discharge pipe to be discharged is arranged, atmospheric gas is introduced into the capsule to adjust the atmosphere inside the capsule, and the gas generated from the heated processed product is discharged out of the furnace body from the gas discharge pipe Because it is configured to be degassed, the atmosphere inside each capsule is adjusted as necessary, and the gas containing the evaporated binder is effective without damaging the furnace material. It can be discharged to degassing the furnace to.

ローラハース炉体部においては、プッシャー炉体部で脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルのみがローラハース炉体部に送られ、搬送ローラにより搬送されて、被焼成品がカプセル内で加熱、焼成され、搬送ローラの回転速度の調整により加熱速度を調整し、効率的に焼成を行うことができる。   In the roller hearth furnace body part, only the tray on which the product to be fired degassed in the pusher furnace body and the capsule covering the tray are sent to the roller hearth furnace body part and transported by the transport roller. It is heated and baked in the capsule, and the heating speed is adjusted by adjusting the rotation speed of the conveying roller, so that baking can be performed efficiently.

本発明の連続式焼成炉の構成を示す概略平面断面図である。It is a schematic plane sectional view showing the composition of the continuous firing furnace of the present invention. 同じく概略縦断面図である。It is a schematic longitudinal cross-sectional view similarly. プッシャー炉体部内における被焼成品を載せたトレー、トレーを覆う鉢状のカプセルおよび台板を示す図である。It is a figure which shows the tray which put the to-be-baked goods in a pusher furnace body part, the bowl-shaped capsule which covers a tray, and a baseplate. ローラハース炉体部における搬送ローラ上の被焼成品を載せたトレーおよびカプセルを示す図である。It is a figure which shows the tray and capsule which mounted the to-be-fired goods on the conveyance roller in a roller hearth furnace body part.

以下、本発明の連続式焼成炉および連続式焼成炉による焼成方法の具体的な実施形態を図面により説明する。   Hereinafter, specific embodiments of the continuous firing furnace and the firing method using the continuous firing furnace of the present invention will be described with reference to the drawings.

本発明による連続式焼成炉1は、図1〜2に示すように、被焼成品4をプッシャー(図示せず)により搬送するプッシャー炉体部2と、被焼成品4をローラ8により搬送するローラハース炉体部3から構成される。   As shown in FIGS. 1 and 2, the continuous firing furnace 1 according to the present invention transports the product to be fired 4 by a pusher (not shown) 2 and transports the product to be fired 4 by a roller 8. It is composed of a roller hearth furnace body 3.

プッシャー炉体部2には、被焼成品4を加熱するための炭化珪素質発熱体などの発熱体(図示せず)が配設され、図3に示すように、被焼成品4を載せたトレー7がそれぞれ鉢状のカプセル5で覆われ、各カプセル5が台板6に載置されて、台板6がプッシャーによりプッシャー炉体部2の床面9を滑動できるよう構成されている。鉢状のカプセル5は、台板6に碗をふせたように載置されている。   The pusher furnace body 2 is provided with a heating element (not shown) such as a silicon carbide heating element for heating the article 4 to be fired, and the article 4 to be fired is placed as shown in FIG. Each tray 7 is covered with a bowl-shaped capsule 5, each capsule 5 is placed on a base plate 6, and the base plate 6 can be slid on the floor surface 9 of the pusher furnace body portion 2 by a pusher. The pot-shaped capsule 5 is placed as if the base plate 6 is covered with a cocoon.

台板6、カプセル5の材質は、好ましくは見掛け気孔率20%以下のムライト、アルミナ、炭化珪素などのセラミック材料や黒鉛が好ましく、この材質選択により、カプセル5内のガス雰囲気を設定された雰囲気に維持することができる。カプセル5は、その重力で台板6に密着し、そのために、台板6とカプセル5との接触面を研磨し、隙間が生じないようにすることが望ましい。台板6が滑って移動するプッシャー炉体部の床面9と台板6との接触面を研磨してもよい。   The material of the base plate 6 and the capsule 5 is preferably a ceramic material such as mullite, alumina, silicon carbide or graphite having an apparent porosity of 20% or less, and an atmosphere in which the gas atmosphere in the capsule 5 is set by selecting this material. Can be maintained. The capsule 5 is in close contact with the base plate 6 due to its gravity, and therefore, it is desirable to polish the contact surface between the base plate 6 and the capsule 5 so that no gap is generated. You may grind | polish the contact surface of the floor surface 9 and the base plate 6 of the pusher furnace body part which the base plate 6 slides and moves.

台板6に載置された被焼成品4は、プッシャー炉体部の入口部(炉体部の左端部)からプッシャーにより炉体部の右方向(矢印A方向)へ搬送され、出口部(炉体部の右端側面部)からローラハース炉体部3の入口部(炉体部の左端側面部)から矢印Bのように炉体部内へ移行するようになっている。   The to-be-fired product 4 placed on the base plate 6 is conveyed from the inlet part (left end part of the furnace body part) of the pusher furnace body part to the right direction (arrow A direction) of the furnace body part by the pusher, and the outlet part ( It moves from the inlet part of the roller hearth furnace body part 3 (left side surface part of the furnace body part) into the furnace body part as indicated by an arrow B from the right end side part of the furnace body part).

プッシャー炉体部2内の各カプセルの位置には、その位置にあるカプセル5内の雰囲気を調整するためのガスを導入するガス導入管10とガスを排出するガス排出管11がそれぞれ独立して配置される。各カプセルの位置の床面9にはそれぞれ貫通穴12、13が設けられ、該貫通穴12、13に前記ガス導入管10とガス排出管11が接続され、各カプセルが位置する台板6にも貫通穴が設けられており、台板6がプッシャーにより移動し、台板6の貫通穴14、15と床面の貫通穴12、13とが一致したとき、貫通穴を介してガス導入管10からカプセル5内に雰囲気ガスが導入されてカプセル5内が設定された雰囲気に調整されるとともに、加熱された被焼成品4から発生したガスは台板6の貫通穴15、床面9の貫通穴13を通して、ガス排出管11に流入し、炉体外に排出され脱ガス処理されるようになっている。   At the position of each capsule in the pusher furnace body section 2, a gas introduction pipe 10 for introducing a gas for adjusting the atmosphere in the capsule 5 at that position and a gas discharge pipe 11 for discharging the gas are independently provided. Be placed. Through holes 12 and 13 are provided in the floor surface 9 at the positions of the capsules, and the gas introduction pipe 10 and the gas discharge pipe 11 are connected to the through holes 12 and 13, and the base plate 6 on which the capsules are located. Is also provided with a through hole, and when the base plate 6 is moved by the pusher and the through holes 14 and 15 of the base plate 6 coincide with the through holes 12 and 13 of the floor surface, the gas introduction pipe is passed through the through hole. The atmosphere gas is introduced into the capsule 5 from 10 to adjust the atmosphere inside the capsule 5, and the gas generated from the heated article 4 to be fired is passed through the through holes 15 of the base plate 6 and the floor surface 9. The gas flows into the gas discharge pipe 11 through the through hole 13 and is discharged out of the furnace body to be degassed.

そのために、台板6の貫通穴14、15と床面9の貫通穴12、13とが一致したとき、台板をしばらくその位置で待機させ、その後再び台板6の貫通穴と床面9の貫通穴とが次に一致する位置までプッシャーにより台板6を移動させるという間歇的な移動を行うようにすることができる。   Therefore, when the through-holes 14 and 15 of the base plate 6 and the through-holes 12 and 13 of the floor surface 9 coincide with each other, the base plate is kept waiting at that position for a while, and then the through-hole of the base plate 6 and the floor surface 9 again. It is possible to perform an intermittent movement in which the base plate 6 is moved by the pusher to a position where the through hole is next coincident with the through hole.

プッシャー炉体部2とローラハース炉体部3との間には台板6を取り除くための装置が配設され、被焼成品がプッシャー炉体部2の出口部からローラハース炉体部3へ移行する時点で、台板6が取り除かれ、被焼成品4、被焼成品4を載せたトレー7、トレー7を覆うカプセル5のみがローラハース炉体部3へ移行し、耐火材からなる搬送ローラ8により搬送されるようになっている(図1〜2、図4)。台板6、トレー7、カプセル5および被焼成品4の合計重量のうち、台板6の重量が占める割合は大きく、台板6が取り除くことによって、重量が半分以下に軽減されるから、駆動負荷が減ると共に、熱容量も大きく減少して、被焼成品をローラハース炉体部3内において加熱するために要する使用電力が削減される。取り除かれた台板6は、矢印Dのようにプッシャー炉体部2へ戻される。   A device for removing the base plate 6 is disposed between the pusher furnace body 2 and the roller hearth furnace body 3, and the product to be fired moves from the outlet of the pusher furnace body 2 to the roller hearth furnace body 3. At that time, the base plate 6 is removed, only the product to be fired 4, the tray 7 on which the product to be fired 4 is placed, and only the capsule 5 covering the tray 7 are transferred to the roller hearth furnace body 3, It is designed to be transported (FIGS. 1-2 and 4). The ratio of the weight of the base plate 6 to the total weight of the base plate 6, the tray 7, the capsule 5 and the article to be fired 4 is large, and the weight is reduced to less than half by removing the base plate 6. As the load is reduced, the heat capacity is greatly reduced, and the power used for heating the fired product in the roller hearth furnace body 3 is reduced. The removed base plate 6 is returned to the pusher furnace body 2 as indicated by an arrow D.

ローラハース炉体部3には、プッシャー炉体部2と同様に、被焼成品を加熱するための炭化珪素質発熱体などの発熱体(図示せず)が配設され、また、炉内雰囲気ガスの投入口、炉内雰囲気ガスの排出口(何れも図示せず)が設けられ、炉体内の雰囲気を所定の雰囲気に調整できるようになっており、脱ガス処理された被焼成品4は、ローラハース炉体部3内を矢印Cのように移行して、所定の雰囲気で加熱、焼成され、出口部(炉体部の右端部)から取り出される。   The roller hearth furnace body 3 is provided with a heating element (not shown) such as a silicon carbide heating element for heating the article to be fired, as with the pusher furnace body 2, and the furnace atmosphere gas And a furnace atmosphere gas discharge port (both not shown) are provided so that the atmosphere in the furnace body can be adjusted to a predetermined atmosphere. The inside of the roller hearth furnace body 3 is moved as indicated by arrow C, heated and fired in a predetermined atmosphere, and taken out from the outlet (the right end of the furnace body).

本発明による連続式焼成炉は、図1〜2に示すように、プッシャー炉体部2とローラハース炉体部3とが、プッシャー炉体部2の出口部(図1においては、炉体部の右端下側部)とローラハース炉体部3の入口部(図1においては、炉体部の左端上側部)とを近接させて並設されるよう配置するのが好ましく、この構成により、炉の設置長さを短縮して処理品の脱ガス、焼成を能率的に行うことができる。   As shown in FIGS. 1 and 2, the continuous firing furnace according to the present invention includes a pusher furnace body portion 2 and a roller hearth furnace body portion 3, wherein an outlet portion of the pusher furnace body portion 2 (in FIG. 1, It is preferable that the right side lower side part and the inlet part of the roller hearth furnace body part 3 (in FIG. 1, the left side upper side part of the furnace body part) are arranged close to each other. It is possible to efficiently perform degassing and firing of the processed product by shortening the installation length.

また、プッシャー炉体部2内において、台板6を連続的に搬送しても、カプセル内への雰囲気ガスの導入、処理品から発生したガスの排出を可能とするために、台板6の貫通穴14、15を台板6の搬送方向(矢印Aの方向)に延びる縦長形状とすることもできる。この構成により、台板6の貫通穴14、15と床面9の貫通穴12、13とが一致する時間が長くなり、台板6の搬送中、カプセル内へのガス導入、カプセル内からのガス排気の時間をより長くすることができる。   In addition, in order to enable introduction of atmospheric gas into the capsule and discharge of gas generated from the processed product even if the base plate 6 is continuously transported in the pusher furnace body 2, The through holes 14 and 15 can be formed in a vertically long shape extending in the transport direction of the base plate 6 (the direction of the arrow A). With this configuration, the time required for the through holes 14 and 15 of the base plate 6 and the through holes 12 and 13 of the floor surface 9 to coincide with each other becomes longer, and during the transport of the base plate 6, gas is introduced into the capsule, and from the capsule. The gas exhaust time can be made longer.

1 連続式焼成炉
2 プッシャー炉体部
3 ローラハース炉体部
4 被焼成品
5 カプセル
6 台板
7 トレー
8 搬送ローラ
9 プッシャー炉体部の床面
10 ガス導入管
11 ガス排出管
12 床面の貫通穴
13 床面の貫通穴
14 台板の貫通穴
15 台板の貫通穴
DESCRIPTION OF SYMBOLS 1 Continuous-type baking furnace 2 Pusher furnace body part 3 Roller hearth furnace body part 4 To-be-baked goods 5 Capsule 6 Base plate 7 Tray 8 Conveyance roller 9 Floor surface of a pusher furnace body part 10 Gas introduction pipe 11 Gas discharge pipe 12 Floor penetration Hole 13 Floor through hole 14 Base plate through hole 15 Base plate through hole

Claims (3)

被焼成品をプッシャーにより搬送するプッシャー炉体部と、被焼成品をローラにより搬送するローラハース炉体部を備えた連続式焼成炉であって、プッシャー炉体部においては、被焼成品を載せたトレーがそれぞれ鉢状のカプセルで覆われ、各カプセルが台板に載置されて、台板がプッシャーによりプッシャー炉体部の床面を滑動できるよう構成されており、プッシャー炉体部内の各カプセルの位置には、その位置にあるカプセル内の雰囲気を調整するためのガスを導入するガス導入管とガスを排出するガス排出管がそれぞれ配置され、各カプセルの位置の床面にはそれぞれ貫通穴が設けられ、該貫通穴に前記ガス導入管とガス排出管が接続され、各カプセルが位置する台板にも貫通穴が設けられてなり、台板の貫通穴と床面の貫通穴とが一致したとき、貫通穴を介してガス導入管からカプセル内に雰囲気ガスが導入されてカプセル内が設定された雰囲気に調整されるとともに、加熱された被焼成品から発生したガスをガス排出管から炉体外に排出して脱ガス処理されるよう構成され、プッシャー炉体部とローラハース炉体部との間には台板を取り除くための装置が配設され、脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルがローラハース炉体部に送られ、搬送ローラにより搬送されて、被焼成品が加熱、焼成されるよう構成されたことを特徴とする連続式焼成炉。   A continuous firing furnace provided with a pusher furnace body part for conveying a product to be fired by a pusher and a roller hearth furnace body part for transporting the product to be fired by a roller, wherein the product to be fired is placed in the pusher furnace body part Each tray is covered with a bowl-shaped capsule, each capsule is placed on a base plate, and the base plate is configured to be able to slide on the floor surface of the pusher furnace body part by a pusher. The gas introduction pipe for introducing the gas for adjusting the atmosphere in the capsule at that position and the gas discharge pipe for discharging the gas are respectively arranged at the positions of the capsules. The gas introduction pipe and the gas discharge pipe are connected to the through hole, and a through hole is also provided in the base plate on which each capsule is located, and the through hole of the base plate and the through hole of the floor surface are provided. one When the atmospheric gas is introduced into the capsule from the gas introduction pipe through the through-hole, the inside of the capsule is adjusted to the set atmosphere, and the gas generated from the heated product to be fired is supplied from the gas discharge pipe to the furnace. It is configured to be discharged out of the body and degassed, and a device for removing the base plate is disposed between the pusher furnace body and the roller hearth furnace body, and the degassed product to be fired is placed thereon. A continuous firing furnace characterized in that the tray and the capsule covering the tray are sent to a roller hearth furnace body and transported by a transport roller to heat and fire the article to be fired. 前記プッシャー炉体部と前記ローラハース炉体部とが、プッシャー炉体部の出口部とローラハース炉体部の入口部とを直接接続させて並設されてなることを特徴とする請求項記載の連続式焼成炉。 Said pusher furnace body section and the roller hearth furnace body section, according to claim 1, wherein is connected an inlet portion of the outlet portion of the pusher furnace body portion and the roller hearth furnace body section directly, characterized in that formed by juxtaposed Continuous firing furnace. 請求項1又は2に記載された連続式焼成炉により被焼成品を焼成する方法であって、プッシャー炉体部においては、被焼成品を載せたトレーをそれぞれ独立した鉢状のカプセルで覆い、各カプセルを台板に載置し、台板がプッシャーによりプッシャー炉体部の床面を滑動して被焼成品を搬送し、被焼成品はカプセル内で加熱され、加熱された被焼成品から発生したガスは炉体部外に排出されて脱ガス処理され、続いて、カプセルを載置した台板を取り除き、プッシャー炉体部で脱ガス処理された被焼成品を載せたトレーとトレーを覆うカプセルのみがローラハース炉体部に送られ、ローラハース炉体部において搬送ローラにより搬送して、被焼成品をカプセル内で加熱、焼成することを特徴とする連続式焼成炉による焼成方法。 A method for firing a product to be fired by a continuous firing furnace according to claim 1 or 2, wherein in the pusher furnace body portion, each tray on which the product to be fired is placed is covered with an independent bowl-shaped capsule, Each capsule is placed on a base plate, and the base plate slides on the floor surface of the pusher furnace body portion by a pusher to convey the product to be fired. The fired product is heated in the capsule, and from the heated fired product. The generated gas is discharged to the outside of the furnace body and degassed.Then, the base plate on which the capsule is placed is removed, and a tray and a tray on which to-be-fired products degassed in the pusher furnace body are placed. A firing method using a continuous firing furnace, wherein only the capsule to be covered is sent to a roller hearth furnace body, and is transported by a transport roller in the roller hearth furnace body to heat and fire the product to be fired in the capsule.
JP2012013844A 2012-01-26 2012-01-26 Firing method by continuous firing furnace and continuous firing furnace Expired - Fee Related JP5935977B2 (en)

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