JP3173375U - Multi-layer heating furnace - Google Patents

Multi-layer heating furnace Download PDF

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JP3173375U
JP3173375U JP2011006880U JP2011006880U JP3173375U JP 3173375 U JP3173375 U JP 3173375U JP 2011006880 U JP2011006880 U JP 2011006880U JP 2011006880 U JP2011006880 U JP 2011006880U JP 3173375 U JP3173375 U JP 3173375U
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furnace
heat insulating
wall
heat insulation
layer
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倫弘 伊藤
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NGK Insulators Ltd
NGK Kilntech Corp
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NGK Insulators Ltd
NGK Kilntech Corp
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Priority to TW101204271U priority patent/TWM439775U/en
Priority to KR2020120001867U priority patent/KR200482078Y1/en
Priority to CN2012200901998U priority patent/CN202547382U/en
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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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

【課題】上層炉と下層炉との間でのガス流動を抑制する多層式加熱炉を提供する。
【解決手段】断熱壁７により炉内６を上下方向に仕切って複数段の熱処理室を形成した多層式加熱炉であって、該断熱壁７は、炉壁４に渡した支持部材８と、該支持部材８上に配置された複数段の断熱層１２、１３、１４、１５からなり、各断熱層は、断熱ブロック９を前後左右に複数並列配置して構成され、隣接層における断熱ブロック９間の継ぎ目、および、隣接層における断熱ブロック９と炉壁４との継ぎ目とを、各々垂直線上からずらして配置した。
【選択図】図１A multilayer heating furnace that suppresses gas flow between an upper layer furnace and a lower layer furnace is provided.
A multi-layered heating furnace in which a heat treatment chamber of a plurality of stages is formed by partitioning an interior of a furnace 6 in the vertical direction by a heat insulating wall 7, the heat insulating wall 7 including a support member 8 passed to the furnace wall 4, The heat insulating layers 12, 13, 14, and 15 are arranged on the support member 8, and each heat insulating layer is configured by arranging a plurality of heat insulating blocks 9 in front, rear, left and right, and the heat insulating blocks 9 in the adjacent layers. The joint between them and the joint between the heat insulation block 9 and the furnace wall 4 in the adjacent layer were respectively shifted from the vertical line.
[Selection] Figure 1

Description

本考案は、多層式加熱炉の中間天井構造に関するものである。   The present invention relates to an intermediate ceiling structure of a multilayer heating furnace.

近年、生産性の向上や省スペース化を目的として、上下方向に複数の搬送路を設け、各搬送炉内で同時に被熱処理物の熱処理を行えるようにした多層構造のローラーハースキルンが提案されている（特許文献１参照）   In recent years, for the purpose of improving productivity and saving space, a multi-layered roller hearth kiln has been proposed in which a plurality of transfer paths are provided in the vertical direction so that heat treatment can be performed simultaneously in each transfer furnace. (See Patent Document 1)

特許文献１のローラーハースキルンでは、加熱炉の内部を上下方向に断熱壁で仕切って複数段の熱処理室を形成することにより、単に、通常の加熱炉を複数積み上げて多段構造とする場合に比べ、高さ方向へのスペースを最小限に抑えた状態で、多層構造を実現している。   In the roller hearth kiln of Patent Document 1, the inside of the heating furnace is partitioned by a heat insulating wall in the vertical direction to form a plurality of heat treatment chambers, which is simply compared to a case where a plurality of heating furnaces are simply stacked to form a multistage structure. The multi-layer structure is realized with minimal space in the height direction.

断熱壁で仕切って複数の熱処理室を形成する方法としては、炉内炉壁に渡した支持部材の上に、断熱材ブロックの最大面を重ね合わせて載置していく方法、あるいは、短冊状の断熱材の最大面を重ね合わせて、炉内炉壁に渡す支持部材で串刺しにするように保持する方法が知られている。   As a method of forming a plurality of heat treatment chambers by partitioning with a heat insulating wall, a method in which the maximum surface of the heat insulating material block is placed on a support member passed to the furnace wall in the furnace, or a strip shape. A method is known in which the maximum surfaces of the heat insulating materials are overlapped and held so as to be skewered by a support member passed to the furnace wall in the furnace.

しかし、断熱材は高温下では収縮する性質を有するため、上記何れの方法においても、加熱処理中に、断熱材と断熱材の継ぎ目や、断熱材と炉壁との隙間を介して、上層炉と下層炉との間でガス流動が生じる現象が観察され、炉内雰囲気が不安定になる問題があった。   However, since the heat insulating material has a property of shrinking at a high temperature, in any of the above methods, during the heat treatment, the upper layer furnace passes through the joint between the heat insulating material and the heat insulating material or the gap between the heat insulating material and the furnace wall. There was a problem that gas flow was observed between the furnace and the lower furnace, and the atmosphere in the furnace became unstable.

特開２００５−１５６０１６号公報JP 2005-156016 A

本考案の目的は前記を解決し、焼成炉の内部を上下方向に断熱壁で仕切って複数の熱処理室を形成した多層式加熱炉において、加熱処理中の高温下で断熱壁を構成する断熱材が収縮した際にも、上層炉と下層炉との間でのガス流動を抑制する技術を提供することである。   An object of the present invention is to solve the above-mentioned problem, and in a multilayer heating furnace in which a plurality of heat treatment chambers are formed by partitioning the inside of a firing furnace with a heat insulation wall in the vertical direction, the heat insulation material constituting the heat insulation wall at a high temperature during the heat treatment It is to provide a technique for suppressing gas flow between the upper layer furnace and the lower layer furnace even when the gas shrinks.

上記課題を解決するためになされた本考案の多層式加熱炉は、断熱壁により炉内を上下方向に仕切って複数段の熱処理室を形成した多層式加熱炉であって、該断熱壁は、炉壁に渡した支持部材と、該支持部材上に配置された複数段の断熱層からなり、各断熱層は、断熱ブロックを前後左右に複数並列配置して構成され、隣接層における断熱ブロック間の継ぎ目、および、隣接層における断熱ブロックと炉壁との継ぎ目とを、各々垂直線上からずらして配置したことを特徴とするものである。   The multi-layer heating furnace of the present invention made to solve the above problems is a multi-layer heating furnace in which the inside of the furnace is vertically divided by a heat insulating wall to form a plurality of heat treatment chambers, and the heat insulating wall includes: It consists of a support member passed to the furnace wall and a plurality of heat insulation layers arranged on the support member, and each heat insulation layer is configured by arranging a plurality of heat insulation blocks in front, rear, left and right in parallel, between the heat insulation blocks in adjacent layers , And the joint between the heat insulation block and the furnace wall in the adjacent layer are respectively shifted from the vertical line.

請求項２記載の考案は、請求項１記載の多層式加熱炉において、隣接する断熱層間の断熱ブロックを、垂直断面で千鳥配置するとともに、隣接する断熱層間の断熱ブロックと炉壁との継ぎ目とを、垂直断面で凹凸配置したことを特徴とするものである。   The invention according to claim 2 is the multilayer heating furnace according to claim 1, wherein the heat insulation blocks between adjacent heat insulation layers are arranged in a staggered manner in a vertical section, and the joint between the heat insulation blocks between adjacent heat insulation layers and the furnace wall is provided. Are arranged in a concavo-convex shape in a vertical cross section.

請求項３記載の考案は、請求項２記載の多層式加熱炉において、炉内炉壁は断熱レンガから構成され、該炉壁の凸部は、断熱壁の凹部と炉壁との間に形成される空間を埋める形状の断熱レンガを、炉壁の内側フラット面にモルタル施工して形成したことを特徴とする。   The invention according to claim 3 is the multilayer heating furnace according to claim 2, wherein the furnace wall in the furnace is made of heat insulating brick, and the convex part of the furnace wall is formed between the concave part of the heat insulating wall and the furnace wall. The heat insulating brick having a shape filling the space to be formed is formed by mortar construction on the inner flat surface of the furnace wall.

請求項４記載の考案は、請求項１〜３の何れかに記載の多層式加熱炉において、該断熱層の最上層および最下層は硬質のボード材からなり、中間層は柔軟なブランケット材からなることを特徴とするものである。   Invention of Claim 4 is the multilayer heating furnace in any one of Claims 1-3, The uppermost layer and lowermost layer of this heat insulation layer consist of a hard board material, and an intermediate | middle layer consists of a flexible blanket material. It is characterized by.

焼成炉の内部を上下方向に断熱壁で仕切って複数段の熱処理室を形成した多層式加熱炉において、断熱壁を構成する断熱材は高温下では収縮する性質を有するが、本考案では、断熱壁を、炉壁に渡した支持部材と、該支持部材上に配置された複数段の断熱層から構成し、各断熱層において、断熱ブロックを前後左右に複数並列配置し、隣接層における断熱ブロック間の継ぎ目、および、隣接層における断熱ブロックと炉壁との継ぎ目とを、各々垂直線上からずらして配置しているため、加熱処理中に各断熱材ブロックが収縮して各断熱材ブロック間に隙間が生じた場合であっても、断熱壁を上下方向に貫通する隙間の発生を回避することができる。したがって本考案によれば、加熱処理中の高温下で断熱壁を構成する断熱材が収縮した際にも、上層炉と下層炉との間でのガス流動を効果的に抑制することができる。   In a multi-layer heating furnace in which the interior of the firing furnace is partitioned by a heat insulating wall in the vertical direction to form a multi-stage heat treatment chamber, the heat insulating material constituting the heat insulating wall has the property of shrinking at high temperatures. The wall is composed of a support member that crosses the furnace wall, and a plurality of heat insulation layers arranged on the support member. In each heat insulation layer, a plurality of heat insulation blocks are arranged in parallel in the front, rear, left, and right, and the heat insulation blocks in the adjacent layers Since the joints between the insulation layers and the joints between the heat insulation blocks and the furnace walls in the adjacent layers are shifted from each other on the vertical line, each heat insulation block shrinks during the heat treatment, and between the heat insulation blocks. Even when a gap is generated, it is possible to avoid the generation of a gap penetrating the heat insulating wall in the vertical direction. Therefore, according to the present invention, gas flow between the upper layer furnace and the lower layer furnace can be effectively suppressed even when the heat insulating material constituting the heat insulating wall contracts at a high temperature during the heat treatment.

本実施形態の多層式加熱炉の炉幅方向拡大断面図（右半分）である。It is a cross section (right half) of the furnace width direction of the multilayer heating furnace of this embodiment. 断熱材ブロックと炉壁との継ぎ目部分の拡大説明図である。It is expansion explanatory drawing of the joint part of a heat insulating material block and a furnace wall.

以下に本考案の好ましい実施形態を示す。   Hereinafter, preferred embodiments of the present invention will be described.

図１には、本実施形態の多層式加熱炉を示す炉幅方向の拡大断面図（右半分）を示している。本実施形態における多層式加熱炉は、断熱壁７により炉内を上下方向に仕切って形成した２層式のローラーハースキルンであり、炉体１は周知のトンネル構造であり、その内部に一定ピッチで多数の搬送用のローラ２が配置されている。各ローラ２は高温強度に優れたＳｉ−ＳｉＣ製であり、炉外に設置された駆動装置によって一定速度で駆動されている。なおＳｉ−ＳｉＣはＳｉを含浸させた緻密なＳｉＣであり、１３００℃において２５０ＭＮ/ｍ２という高強度を有する。また耐クリープ性、耐酸化性、赤外線の放射性にも優れる材質である。 In FIG. 1, the expanded sectional view (right half) of the furnace width direction which shows the multilayer heating furnace of this embodiment is shown. The multilayer heating furnace in the present embodiment is a two-layer roller hearth kiln formed by partitioning the inside of the furnace in the vertical direction with a heat insulating wall 7, and the furnace body 1 has a well-known tunnel structure and has a constant pitch inside. A large number of conveying rollers 2 are arranged. Each roller 2 is made of Si—SiC having excellent high-temperature strength, and is driven at a constant speed by a driving device installed outside the furnace. Si-SiC is dense SiC impregnated with Si and has a high strength of 250 MN / m 2 at 1300 ° C. It is also a material with excellent creep resistance, oxidation resistance, and infrared radiation.

被焼成物である粉体はセラミック製の匣鉢３に収納され、複数の匣鉢３を配列した状態でローラ２上を搬送され、５００〜１２００℃で熱処理される。   Powder to be fired is housed in a ceramic mortar 3, conveyed on the roller 2 in a state where a plurality of mortar 3 is arranged, and heat treated at 500 to 1200 ° C.

炉内６の上部および下部には、各々、炉幅方向で炉壁４を貫通して棒状ＳｉＣヒータ５が配置されている。   A bar-shaped SiC heater 5 is disposed in the upper and lower portions of the furnace 6 so as to penetrate the furnace wall 4 in the furnace width direction.

断熱壁７は、炉壁４に渡した支持部材８と、該支持部材８上で千鳥状に複数連続載置した断熱材ブロック９から構成されている。   The heat insulating wall 7 is composed of a support member 8 that is passed to the furnace wall 4 and a plurality of heat insulating material blocks 9 that are continuously mounted in a staggered manner on the support member 8.

断熱材ブロック９は、左右に並列配置した断熱層（１２、１３、１４、１５）を形成し、本実施形態において最上段の断熱層１２および最下段の断熱層１５は硬質のボード材から構成され、中間層１３、１４は柔軟なブランケット材から構成されている。   The heat insulating material block 9 forms heat insulating layers (12, 13, 14, 15) arranged in parallel on the left and right, and in the present embodiment, the uppermost heat insulating layer 12 and the lowermost heat insulating layer 15 are made of a hard board material. The intermediate layers 13 and 14 are made of a flexible blanket material.

断熱材ブロック９を構成するボード材およびブランケット材のいずれも高温下では収縮する性質を有するが、本考案では、隣接する断熱層間の断熱ブロック９を、垂直断面で千鳥配置になるように配置しているため、加熱処理中に各断熱材ブロック９が収縮して隣接する断熱層間の断熱ブロック９間に隙間が生じた場合であっても、断熱壁を上下方向に貫通する隙間、すなわち上層炉と下層炉との間でのガス流動を生じさせる隙間は生じない構造となっている。断熱材ブロック９のサイズは、特に限定されないが、各層１２、１３、１４、１５において、各々構成ブロックは同一厚さを有するものとし、上下に隣接する層で、断熱材ブロック９と炉壁４との継ぎ目位置が同一位置とならないものとする。   Although both the board material and the blanket material constituting the heat insulating material block 9 have a property of shrinking at high temperatures, in the present invention, the heat insulating blocks 9 between adjacent heat insulating layers are arranged in a staggered arrangement in a vertical section. Therefore, even when each heat insulating material block 9 contracts during the heat treatment and a gap is generated between the heat insulating blocks 9 between adjacent heat insulating layers, a gap penetrating the heat insulating wall in the vertical direction, that is, an upper layer furnace It has a structure in which there is no gap between the two and the lower furnace. The size of the heat insulating material block 9 is not particularly limited. In each of the layers 12, 13, 14, and 15, the constituent blocks have the same thickness, and the heat insulating material block 9 and the furnace wall 4 are vertically adjacent layers. And the joint position is not the same position.

更に、図２に示すように、本考案では隣接する断熱層間の断熱ブロック９と炉壁４との継ぎ目とを、垂直断面で凹凸配置しているため、加熱処理中に各断熱材ブロックが収縮して断熱材ブロックと炉壁との継ぎ目位置に隙間が生じた場合であっても、断熱壁端部と炉壁との間を上下方向に貫通する隙間は生じない構造となっている。本考案では前記効果の組み合わせによって、加熱処理中の高温下で断熱壁を構成する断熱材が収縮した場合であっても、上層炉と下層炉との間でのガス流動を効果的に抑制可能としている。   Further, as shown in FIG. 2, in the present invention, the heat insulation block 9 between the adjacent heat insulation layers and the joint between the furnace wall 4 are unevenly arranged in a vertical section, so that each heat insulation block contracts during the heat treatment. Thus, even when a gap is generated at the joint position between the heat insulating material block and the furnace wall, there is no gap that vertically penetrates between the end of the heat insulating wall and the furnace wall. In the present invention, the gas flow between the upper layer furnace and the lower layer furnace can be effectively suppressed by the combination of the above effects even when the heat insulating material constituting the heat insulating wall contracts at a high temperature during the heat treatment. It is said.

本実施形態において、炉壁４は断熱レンガから構成し、炉壁４の凸部１１は、断熱壁７の凹部１０と炉壁４との間に生じた空間を埋める形状の断熱レンガを、炉壁の内側フラット面にモルタル施工にモルタル施工して形成しているが、凸部１１の形成手段は特に限定されない。   In the present embodiment, the furnace wall 4 is made of heat insulating bricks, and the convex portions 11 of the furnace wall 4 are made of heat insulating bricks having a shape filling the space formed between the concave portions 10 of the heat insulating walls 7 and the furnace wall 4. Although it forms by carrying out mortar construction to mortar construction on the inner flat surface of the wall, the formation means of the convex part 11 is not specifically limited.

１ 炉体
２ ローラ
３ 匣鉢
４ 炉壁
５ 棒状ＳｉＣヒータ
６ 炉内
７ 断熱壁
８ 支持部材
９ 断熱材ブロック
１０ 凹部
１１ 凸部
１２、１３、１４、１５ 断熱層 DESCRIPTION OF SYMBOLS 1 Furnace 2 Roller 3 Bowl 4 Furnace wall 5 Bar-shaped SiC heater 6 Furnace 7 Heat insulation wall 8 Support member 9 Heat insulation material block 10 Recess 11 Protrusion 12, 13, 14, 15 Heat insulation layer

Claims (4)

断熱壁により炉内を上下方向に仕切って複数段の熱処理室を形成した多層式加熱炉であって、
該断熱壁は、炉壁に渡した支持部材と、該支持部材上に配置された複数段の断熱層からなり、
各断熱層は、断熱ブロックを前後左右に複数並列配置して構成され、
各断熱層の隣接層における断熱ブロック間の継ぎ目、および、隣接層における断熱ブロックと炉壁との継ぎ目とを、各々垂直線上からずらして配置したことを特徴とする多層式加熱炉。 A multilayer heating furnace in which the inside of the furnace is partitioned in the vertical direction by a heat insulating wall to form a multi-stage heat treatment chamber,
The heat insulating wall is composed of a support member that is passed to the furnace wall, and a plurality of heat insulating layers disposed on the support member.
Each heat insulation layer is configured by arranging a plurality of heat insulation blocks in front, rear, left and right in parallel,
A multilayer heating furnace characterized in that a joint between heat insulation blocks in an adjacent layer of each heat insulation layer and a joint between the heat insulation block and the furnace wall in the adjacent layer are respectively shifted from a vertical line. 隣接する断熱層間の断熱ブロックを、垂直断面で千鳥配置するとともに、
隣接する断熱層間の断熱ブロックと炉壁との継ぎ目とを、垂直断面で凹凸配置したことを特徴とする請求項１記載の多層式加熱炉。 While arranging the heat insulation blocks between adjacent heat insulation layers in a vertical cross section,
2. The multilayer heating furnace according to claim 1, wherein the heat insulation block between adjacent heat insulation layers and the joint between the furnace walls are arranged unevenly in a vertical section. 炉内炉壁は断熱レンガまたは耐火レンガから構成され、該炉壁の凸部は、断熱壁の凹部と炉壁との間に形成される空間を埋める形状の断熱レンガを、炉壁の内側フラット面にモルタル施工して形成したことを特徴とする請求項２記載の多層式加熱炉。   The furnace wall in the furnace is composed of heat insulating bricks or refractory bricks, and the convex part of the furnace wall is formed of an insulating brick shaped to fill a space formed between the concave part of the heat insulating wall and the furnace wall, and the inside flat of the furnace wall. The multilayer heating furnace according to claim 2, wherein the surface is formed by mortar construction. 該断熱層の最上層および最下層は硬質のボード材からなり、中間層は柔軟なブランケット材からなることを特徴とする請求項１〜３の何れかに記載の多層式加熱炉。
The multilayer heating furnace according to any one of claims 1 to 3, wherein an uppermost layer and a lowermost layer of the heat insulating layer are made of a hard board material, and an intermediate layer is made of a flexible blanket material.
JP2011006880U 2011-11-22 2011-11-22 Multi-layer heating furnace Expired - Lifetime JP3173375U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2011006880U JP3173375U (en) 2011-11-22 2011-11-22 Multi-layer heating furnace
TW101204271U TWM439775U (en) 2011-11-22 2012-03-09 Multi-layered heating furnace
KR2020120001867U KR200482078Y1 (en) 2011-11-22 2012-03-09 Multilayer heating furnace
CN2012200901998U CN202547382U (en) 2011-11-22 2012-03-12 Multilayer heating furnace

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CN105627743A (en) * 2016-01-19 2016-06-01 深圳市三鑫精美特玻璃有限公司 Multilayer clean tunnel furnace
CN106233086A (en) * 2014-04-15 2016-12-14 麦格纳国际公司 Make stove and the production line of aluminum warm working

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CN103343185A (en) * 2013-07-19 2013-10-09 东北大学 Multilayer box type heating furnace
MX2016004689A (en) * 2015-04-15 2017-04-25 Magna Int Inc Aluminum warm forming multi-opening oven and production line.
KR102353899B1 (en) 2020-03-27 2022-01-20 (주)브이씨티이 Multi cell Continuous Heat Treatment Furnace
KR20230138624A (en) 2022-03-24 2023-10-05 변상교 Heating Chamber Moving Type Continuous Heat Treatment Furnace

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JP2005156016A (en) * 2003-11-26 2005-06-16 Matsushita Electric Ind Co Ltd Plasma display panel baking device
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KR100645977B1 (en) 2005-08-09 2006-11-14 이광원 Structure of expansion joint filler for preventing crack in piling brick using reinforcing material for outer wall and method thereof

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CN106233086A (en) * 2014-04-15 2016-12-14 麦格纳国际公司 Make stove and the production line of aluminum warm working
CN106233086B (en) * 2014-04-15 2019-07-23 麦格纳国际公司 Make the furnace and production line of aluminium warm working
US10823505B2 (en) 2014-04-15 2020-11-03 Magna International Inc. Aluminum warm forming oven and production line
CN105627743A (en) * 2016-01-19 2016-06-01 深圳市三鑫精美特玻璃有限公司 Multilayer clean tunnel furnace
CN105627743B (en) * 2016-01-19 2018-06-22 深圳市三鑫精美特玻璃有限公司 A kind of multilayer clean tunnel stove

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