JP6393095B2 - Nonferrous metal melting and holding furnace and refractory replacement and repair method for melting furnace - Google Patents

Nonferrous metal melting and holding furnace and refractory replacement and repair method for melting furnace Download PDF

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JP6393095B2
JP6393095B2 JP2014133695A JP2014133695A JP6393095B2 JP 6393095 B2 JP6393095 B2 JP 6393095B2 JP 2014133695 A JP2014133695 A JP 2014133695A JP 2014133695 A JP2014133695 A JP 2014133695A JP 6393095 B2 JP6393095 B2 JP 6393095B2
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洋二 青木
洋二 青木
英晃 山本
英晃 山本
英夫 橋岡
英夫 橋岡
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Hirochiku Co Ltd
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本発明は、ダイカスト等に供するアルミニウム、マグネシウム等の非鉄金属溶湯を溶製する溶解保持炉、特に小型の溶解保持炉において、詳しくは溶解保持炉中の溶解炉の耐火物の張替、補修を容易にするための炉の配置、構造及び張替、補修方法に関するものである。   The present invention relates to a melting and holding furnace for melting non-ferrous metal such as aluminum and magnesium to be used for die casting, particularly in a small melting and holding furnace. The present invention relates to a furnace arrangement, a structure, a replacement, and a repair method for facilitating the process.

ダイキャスト法は、金型に溶融したアルミニウム、亜鉛、マグネシウム等の非鉄金属及びそれらの合金を圧入することにより高い寸法精度の鋳物を短時間に大量生産する鋳造方式であって、量産性や製品肌が良好なことに特長があり、自動車関連部品、家電関連部品、事務用品や日用品等に用途を拡大して来ている。   The die-casting method is a casting method that mass-produces castings with high dimensional accuracy in a short time by press-fitting non-ferrous metals such as aluminum, zinc, magnesium and their alloys into a mold. It is characterized by good skin, and its application has been expanded to automobile-related parts, home appliance-related parts, office supplies and daily necessities.

ダイキャスト用合金として使用量が多いのは、アルミニウム合金であって、経済的で、鋳造し易く、しかも機械的性質や成形鋳造性に優れている。ダイキャスト法に用いられるアルミニウム合金の溶湯は、図7に示すような溶解保持炉1で溶製され、その溶湯は保持炉3で800℃近辺で保持される。前記溶解保持炉としては、上部が溶解材料投入口で、下部に傾斜炉床を有する溶解炉1−1を有し、装入された溶解材料を溶解バーナ1−2によって加熱溶解し、傾斜炉床を経由して溶湯処理炉に導入されて溶湯処理を行い、次いで溶湯保持炉3へ導入され、炉の保持バーナにより溶湯を定温に加熱保持するアルミ等の非鉄金属溶湯の溶解保持炉が知られている。   Aluminum alloys that are used in large quantities as die casting alloys are economical, easy to cast, and excellent in mechanical properties and moldability. The molten aluminum alloy used in the die casting method is melted in a melting and holding furnace 1 as shown in FIG. 7, and the molten metal is held in the holding furnace 3 at around 800 ° C. The melting and holding furnace has a melting furnace 1-1 having a melting material inlet at the upper part and an inclined hearth at the lower part, and the charged melting material is heated and melted by a melting burner 1-2. There is known a melting and holding furnace for non-ferrous metal such as aluminum, which is introduced into a molten metal processing furnace through a floor, performs molten metal treatment, and then introduced into the molten metal holding furnace 3 and is heated and held at a constant temperature by a furnace holding burner. It has been.

特開2004−332948号公報(図2、図5、図6)Japanese Unexamined Patent Publication No. 2004-332948 (FIGS. 2, 5, and 6)

前述の溶解保持炉の溶解炉は、炉上部から装入されたアルミニウム材料を、炉の中間に設けられた溶解バーナの火炎により溶融して傾斜床に沿って流下させ、溶湯処理を経て溶湯保持炉にて貯湯する。この溶解バーナの火炎温度は高く、溶解炉の内壁は燃焼炎の高温に曝され、またアルミニウムや随伴する金属酸化物により溶損し易いので、耐火度の高いAlやAl―SiO系の耐火煉瓦や不定形耐火物が主として用いられてきた。 In the melting and holding furnace described above, the aluminum material charged from the upper part of the furnace is melted by the flame of the melting burner provided in the middle of the furnace and flows down along the inclined bed, and the molten metal is held after the molten metal treatment. Store hot water in the furnace. The flame temperature of this melting burner is high, the inner wall of the melting furnace is exposed to the high temperature of the combustion flame, and is easily damaged by aluminum and accompanying metal oxides. Therefore, Al 2 O 3 and Al 2 O 3 having high fire resistance SiO 2 refractory bricks and irregular refractories have been mainly used.

アルミニウム等の非鉄金属のダイキャスト機に溶湯を供給する溶解保持炉は、前述のダイキャスト機の能力と稼動台数に対応して、小型の、例えば300〜1000kg/hr能力の溶解保持炉が使用されることが多い。また、溶解保持炉の溶解炉は、保持炉からの間歇的な出湯量に見合って、間歇的な溶解作業が行われる。この間歇操業に合わせるべく、溶解炉は溶解バーナの燃焼量を増減して対応する必要があり、また、溶解炉への材料の装入も間歇的であり、その都度投入口の可動蓋が開閉して炉内へ外気の侵入を招来するなど、結果的に、炉内耐火物の温度変化をもたらして溶解炉内の耐火物が損傷し易い状況にある。   The melting and holding furnace that supplies molten metal to die casting machines made of non-ferrous metals such as aluminum uses a small melting and holding furnace with a capacity of 300 to 1000 kg / hr, for example, corresponding to the capacity and the number of units used. Often done. Further, in the melting and holding furnace, intermittent melting work is performed in accordance with the intermittent amount of hot water discharged from the holding furnace. In order to match this intermittent operation, the melting furnace needs to respond by increasing / decreasing the combustion amount of the melting burner, and the charging of the material into the melting furnace is also intermittent. As a result, the refractory in the melting furnace is likely to be damaged due to a change in the temperature of the refractory in the furnace.

本発明は、前述の小型の非鉄金属溶解保持炉において、溶解炉の狭隘な内壁中でも耐火物の張替、補修工事を効率的に行う課題に対応するものであって、溶解炉、溶湯処理炉、溶湯保持炉の連結した配置を機器補修に関して改善すると共に、良好な作業空間を確保して、作業環境を改善することにより、耐火物の張替、補修工事を容易にして工期の短縮と、工事結果の品質確保を狙って溶解保持炉の構成及び配置を改善したアルミニウム、マグネシウム等の非鉄金属の溶解保持炉及び溶解炉の耐火物の張替、補修方法を提供することを目的とするものである。   The present invention, in the small non-ferrous metal melting and holding furnace described above, addresses the problem of efficiently replacing and repairing refractories even in the narrow inner wall of the melting furnace. In addition to improving the connected arrangement of the molten metal holding furnace with regard to equipment repair, ensuring a good work space and improving the work environment, it is easy to replace refractories and repair work, shorten the construction period, The purpose is to provide a method for replacing and repairing non-ferrous metal melting and holding furnaces such as aluminum and magnesium, and refractories in melting furnaces, with the aim of ensuring the quality of construction results and improving the structure and arrangement of melting and holding furnaces It is.

上記の目的を達成するために、本発明の請求項1に係る非鉄金属の溶解保持炉は、非鉄金属を溶解バーナにより加熱溶解して溶湯を得る溶解炉と該溶湯を処理する溶湯処理炉と、処理した溶湯を浸漬ヒータ又は面燃焼バーナにより定温に加熱保持して貯湯する溶湯保持炉と、から成る溶解保持炉であって、前記溶解炉の一側面の少なくとも一部と前記溶湯処理炉の一側面の少なくとも一部とが接触する接合面と、前記接合面を貫通する接続部とを備える溶解保持炉において、前記溶解炉の耐火物の張替、補修工事を容易にするために、前記溶解炉から前記溶湯処理炉を、又は前記溶解炉から前記溶湯処理炉及び前記溶湯保持炉を前記接合面で分離して移動可能に構成することを特徴とする。 To achieve the above object, melting and holding furnace nonferrous metals according to claim 1 of the present invention processes a melting furnace to obtain a molten metal more heated and dissolved nonferrous metals dissolved burners, the solution hot melt A melting and holding furnace comprising: a processing furnace; and a molten metal holding furnace for storing the heated molten metal at a constant temperature by an immersion heater or a surface combustion burner , wherein at least a part of one side surface of the melting furnace and the molten metal In a melting and holding furnace provided with a joint surface in contact with at least a part of one side surface of the processing furnace and a connection portion penetrating the joint surface , in order to facilitate replacement and repair work of the refractory of the melting furnace In addition, the molten metal processing furnace is configured to be movable from the melting furnace , or the molten metal processing furnace and the molten metal holding furnace are separated from the melting furnace at the joining surface .

この構成をとることにより、溶解炉と溶湯処理炉との接続を解放して、溶湯処理炉等を離間して移動させ、その跡に耐火物の張替、補修工事のために作業空間を創出することができる。例えば、溶解炉から溶湯処理炉を上方へ、又は、溶解保持炉の軸線に直角の横方向に移動して、その跡に適切な作業空間を設けることができる。また、溶解炉から溶湯処理炉と溶湯保持炉とを一体的に移動させる場合には、上方へ移動するか、又は、溶解保持炉の軸線に沿って離間する方向に移動させて、その跡に適切な作業空間を設けることができる。   By adopting this configuration, the connection between the melting furnace and the molten metal processing furnace is released, the molten metal processing furnace, etc. are moved away from each other, and a work space is created for the replacement of the refractory and repair work on the trace. can do. For example, it is possible to move the molten metal processing furnace upward from the melting furnace or in the lateral direction perpendicular to the axis of the melting and holding furnace to provide an appropriate working space at the trace. In addition, when the molten metal treatment furnace and the molten metal holding furnace are moved integrally from the melting furnace, they are moved upward or moved away from each other along the axis of the melting and holding furnace. An appropriate working space can be provided.

従来の溶解保持炉において、耐火物が損傷して補修が必要となることが多い溶解炉では、特に300〜1000kg/hr能力の小型の溶解保持炉では、その内壁断面の大きさが、材料投入口で約0.5×0.6m〜0.6×0.8m程度であり、溶湯処理炉との接続部では約0.5×0.6m〜0.6×0.8m程度のトンネル状の場所で人間一人がやっと作業できる狭隘な空間である。また、溶解炉炉内で傷みの激しい部位は、溶解バーナの火炎が当たる傾斜床付近の部位であり、このような場所での耐火物の張替、補修工事は、前記材料投入口や溶湯処理炉との接続部や溶解炉の中段の点検口から耐火材及び工事部材の搬入、搬出が必要であり、また、前述の狭隘な場所における張替、補修工事の作業は困難で効率の悪いものであり、工事後の品質も期待し難いものであった。これに対して、本発明の耐火物の張替、補修作業がし易い作業空間を設けることができる構成によれば、張替、補修作業が容易に行え、作業の出来具合も良好であり、結果的に、溶解炉の耐火物の張替、補修工事を迅速に遂行でき、出来上がりの品質も十分確保できるものである。   In conventional melting and holding furnaces, refractories are often damaged and repairs are often required. Especially in small melting and holding furnaces with a capacity of 300 to 1000 kg / hr, the size of the inner wall cross-section is large. About 0.5 x 0.6m to 0.6 x 0.8m at the mouth, and about 0.5 x 0.6m to 0.6 x 0.8m tunnel shape at the connection with the molten metal processing furnace It is a narrow space where one person can finally work in this place. In addition, the severely damaged parts in the melting furnace are the parts near the inclined floor where the flame of the melting burner hits, and refractory replacement and repair work in such places can be done with the material input port or molten metal treatment. It is necessary to carry in and out refractory materials and construction members from the connection part with the furnace and the middle inspection port of the melting furnace, and the above-mentioned work of rehanging and repairing in a narrow place is difficult and inefficient. It was difficult to expect the quality after the construction. On the other hand, according to the configuration of the present invention, it is possible to provide a work space in which the refractory can be easily replaced and repaired, and the replacement and repair can be easily performed, and the work can be performed well. As a result, the refractory replacement and repair work of the melting furnace can be performed quickly and the quality of the finished product can be secured sufficiently.

また、請求項2に係る非鉄金属の溶解保持炉は、請求項1に記載の非鉄金属の溶解保持炉において、前記溶解炉と前記溶湯処理炉の前記接合面を分離、解放して、前記工事用の余地空間を創出するために、前記溶解炉から前記溶湯処理炉を、又は前記溶解炉から前記溶湯処理炉及び前記溶湯保持炉を分離して移動できるよう移動手段を設けたことを特徴とする。また、請求項3に係る非鉄金属の溶解保持炉は、請求項2に記載の非鉄金属の溶解保持炉において、前記移動手段が、前記溶湯処理炉に、又は前記溶湯処理炉と前記溶湯保持炉に対して、起重機による吊り上げ移動、床盤におけるジャッキによる摺動移動、又は床盤におけるジャッキによる転がり移動であることを特徴とする。 Further, a non-ferrous metal melting and holding furnace according to claim 2 is the non-ferrous metal melting and holding furnace according to claim 1, wherein the joining surface of the melting furnace and the molten metal processing furnace is separated and released, and the construction work is performed. In order to create a room for use, a moving means is provided so that the molten metal processing furnace can be separated from the melting furnace , or the molten metal processing furnace and the molten metal holding furnace can be moved separately from the melting furnace. To do. Further, the non-ferrous metal melting and holding furnace according to claim 3 is the non-ferrous metal melting and holding furnace according to claim 2, wherein the moving means is in the molten metal processing furnace or in the molten metal processing furnace and the molten metal holding furnace. On the other hand, it is characterized in that it is a lifting movement by a hoist, a sliding movement by a jack on the floor, or a rolling movement by a jack on the floor.

これらの構成により、溶解保持炉全体として、非鉄金属の溶解、溶湯処理、溶湯の保持・貯湯の操業を行う中で、溶解炉の耐火物が損傷して、溶解炉の操業の継続が不可になった際に、炉を停止して、必要な耐火物の張替、補修工事を容易にすべく、溶解炉と溶湯処理炉の接続を解放した後、移動手段により溶湯処理炉等を移動して、新たな作業空間を設けることが簡易に実施できる。この移動手段は前もって準備又は設置しておくことが可能である。また、移動手段の設置と使用については、移動する溶湯処理炉又は溶湯処理炉と溶湯保持炉の機器の床盤面と対応する基礎面とに摺動面を前もって形成しておき、潤滑剤を塗布しておけば、摺動を要する場合には油圧ジャッキ等の力を利用して機器を簡単に移動させることができる。また、摺動面の代わりに複数のコロ軸を介在させておけば、移動を要する場合には油圧ジャッキ等の力を利用して機器を簡単に移動させることができる。また、移動する必要がある溶湯処理炉又は溶湯処理炉と溶湯保持炉の機器に吊り環を前もって設けておけば、起重機や揚重機により吊り上げ、縦、横方向に走行移動することにより溶湯処理炉又は溶湯処理炉と溶湯保持炉の分離移動が可能になる。   Due to these configurations, the refractory of the melting furnace is damaged during the melting and holding furnace as a whole, melting non-ferrous metals, molten metal treatment, molten metal holding and hot water operation, making it impossible to continue the melting furnace operation. In order to facilitate the necessary refractory refilling and repair work, the furnace is stopped and the connection between the melting furnace and the molten metal processing furnace is released, and then the molten metal processing furnace is moved by moving means. Thus, a new work space can be easily provided. This moving means can be prepared or installed in advance. In addition, regarding the installation and use of the moving means, a sliding surface is formed in advance on the floor surface of the molten metal processing furnace or the equipment of the molten metal processing furnace and the molten metal holding furnace and the corresponding base surface, and the lubricant is applied. Then, when sliding is required, the device can be easily moved using a force such as a hydraulic jack. In addition, if a plurality of roller shafts are interposed instead of the sliding surface, the device can be easily moved using a force such as a hydraulic jack when movement is required. In addition, if a hanging ring is provided in advance in the molten metal processing furnace or the molten metal processing furnace and the molten metal holding furnace that need to be moved, the molten metal processing furnace is lifted by a hoist or a hoist and moved in the vertical and horizontal directions. Alternatively, the molten metal treatment furnace and the molten metal holding furnace can be separated and moved.

また、請求項4に係る溶解炉の耐火物張替、補修方法は、請求項1又は2又は3に記載の非鉄金属の溶解保持炉における溶解炉の耐火物張替、補修工事において、前記溶解炉を休止した後、前記溶解炉と前記溶湯処理炉の前記接合面を分離、解放し、次いで前記溶解炉から前記溶湯処理炉を、又は前記溶湯処理炉、前記溶湯保持炉を分離して離間させて余地空間を創出し、次いで離間させ該余地空間を作業空間として耐火物の張替、補修工事を行うことを特徴とする。 Further, the refractory replacement and repair method for a melting furnace according to claim 4 is the refractory replacement and repair work for the melting furnace in the non-ferrous metal melting and holding furnace according to claim 1, 2 or 3. after resting the furnace, the joining surfaces of the melt processing furnace and the melting furnace separation, releasing, then the melt processing furnace from the melting furnace, or the melt processing furnace, and separating the molten metal holding furnace spaced It is characterized by creating a room space, and then performing replacement and repair work of the refractory using the space space thus separated as a work space.

この構成によれば、従来の溶解炉の耐火物の張替、補修工事は、特に300〜1000kg/hr能力の小型の溶解炉において、その溶解炉の内壁断面の大きさが、トンネル状の場所で人間一人がやっと作業できる空間であり、このような狭隘な場所での耐火物の張替、補修工事の作業は困難で効率の悪いものであり、工事後の品質も期待し難いものであったのに対し、耐火物の張替、補修工事のし易い作業空間を確実に設けることができ、作業が容易で、作業の出来具合も良好であり、結果的に溶解炉の耐火物の張替、補修工事を迅速に遂行でき、出来上がりの品質も十分確保できる。 According to this configuration, the refractory replacement and repair work of the conventional melting furnace is performed especially in a small melting furnace having a capacity of 300 to 1000 kg / hr. It is a space where one person can finally work, and it is difficult and inefficient to replace refractories and repair work in such a narrow place, and it is difficult to expect the quality after construction. On the other hand, it is possible to reliably provide a work space that is easy to replace and repair refractories, and the work is easy and the work is in good condition. Replacement and repair work can be performed quickly, and the quality of the finished product can be secured sufficiently.

本発明に係る請求項1から3に記載の非鉄金属の溶解保持炉及び請求項4に記載の溶解炉の耐火物の張替・補修方法によれば、特に、小型の溶解保持炉において溶解炉の耐火物の張替・補修工事が、作業のし易い作業空間を設けることにより、張替・補修工事が容易に、安全に、確実に実施できる。また、作業効率を上げて工程を短縮することも可能で、復旧した耐火物施工の品質も十分確保できる。また、本発明によれば、溶解炉、溶湯処理炉、溶湯保持炉を個別で函体の製作、耐火物の予施工が可能で、これらの炉を連結、一体化することも可能であり、製作費の削減、工期の短縮、製品品質の向上等について最適化しやすい。 According to the non-ferrous metal melting and holding furnace according to claims 1 to 3 and the refractory replacement / repair method for the melting furnace according to claim 4 according to the present invention, particularly in a small melting and holding furnace By providing a work space that facilitates the work of replacing and repairing refractories, the replacement and repair work can be carried out easily, safely and reliably. In addition, it is possible to increase the work efficiency and shorten the process, and it is possible to sufficiently secure the quality of the restored refractory construction. In addition, according to the present invention, a melting furnace, a molten metal processing furnace, and a molten metal holding furnace can be individually produced in a box, and a refractory can be pre-constructed, and these furnaces can be connected and integrated. It is easy to optimize production cost reduction, construction period reduction, product quality improvement, etc.

図1は、本発明を実施するための形態に係る非鉄金属の溶解保持炉の模式的斜視図である。FIG. 1 is a schematic perspective view of a non-ferrous metal melting and holding furnace according to an embodiment for carrying out the present invention. 図2は、図1の状態から溶湯処理炉を分離移動した後の状態を示す非鉄金属の溶解保持炉の模式的斜視図である。FIG. 2 is a schematic perspective view of a non-ferrous metal melting and holding furnace showing a state after the molten metal processing furnace is separated and moved from the state shown in FIG. 図3は、図1の状態から溶湯処理炉及び溶湯保持炉を分離移動した後の状態を示す非鉄金属の溶解保持炉の模式的斜視図である。3 is a schematic perspective view of a non-ferrous metal melting and holding furnace showing a state after the molten metal processing furnace and the molten metal holding furnace are separated and moved from the state of FIG. 図4は、本発明を実施するための形態に係る非鉄金属の溶解保持炉の模式的断面図である。FIG. 4 is a schematic cross-sectional view of a non-ferrous metal melting and holding furnace according to an embodiment for carrying out the present invention. 図5は、図4の状態から溶湯処理炉を分離移動した後の状態を示す非鉄金属の溶解保持炉の模式的断面図である。FIG. 5 is a schematic cross-sectional view of a non-ferrous metal melting and holding furnace showing a state after the molten metal processing furnace is separated and moved from the state of FIG. 図6は、図4の状態から溶湯処理炉及び溶湯保持炉を分離移動した後の状態を示す非鉄金属の溶解保持炉の模式的断面図である。6 is a schematic cross-sectional view of a non-ferrous metal melting and holding furnace showing a state after the molten metal processing furnace and the molten metal holding furnace are separated and moved from the state of FIG. 図7は、従来例の非鉄金属の溶解保持炉の(a)溶解炉断面を示した模式的正面図、(b)溶解炉断面を示した模式的平面図である。FIG. 7: is the typical front view which showed the (a) melting furnace cross section of the melting-and-holding furnace of the nonferrous metal of a prior art example, (b) The typical top view which showed the melting furnace cross section.

本発明に係る非鉄金属の溶解保持炉1を図1、図4を用いて説明する。図1は、非鉄金属の溶解保持炉1の模式的斜視図であって、図4は、図1の溶解保持炉1の内壁の耐火物の状態を示す模式的断面図である。溶解保持炉1は、主として溶解炉1−1と、溶湯処理炉2と、溶湯保持炉3と、から成る3炉で構成される。溶解炉1−1は、上部に溶解材料投入口1−4、投入口可動開閉蓋1−5があり、中段に下斜め向きの溶解バーナ1−2を備え、溶解材料を溶解バーナ1−2の火炎により溶解した溶湯が傾斜床1−3に沿って溶湯処理炉2に流下する。また、中段には、炉内点検口1−6とその開閉蓋を設ける。また、図示していないが、溶解炉1−1に溶解材料を投入する材料投入設備が、溶解炉1−1の側部に、溶解材料投入口1−4を挟んで投入口可動開閉蓋1−5に対向する位置に設けられ、主に、図7aの参考図に示すような、材料投入機1−7、材料バケットカーから構成される。 A non-ferrous metal melting and holding furnace 1 according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic perspective view of a non-ferrous metal melting and holding furnace 1, and FIG. 4 is a schematic cross-sectional view showing a state of a refractory on the inner wall of the melting and holding furnace 1 of FIG. The melting and holding furnace 1 is mainly composed of three furnaces including a melting furnace 1-1, a molten metal processing furnace 2, and a molten metal holding furnace 3. The melting furnace 1-1 has a melting material inlet 1-4 and an inlet movable opening / closing lid 1-5 at the upper part, and has a melting burner 1-2 inclined downward in the middle, and the melting material is melted by the melting burner 1-2. The molten metal melted by this flame flows down to the molten metal treatment furnace 2 along the inclined bed 1-3. Further, in the middle stage, an in-furnace inspection port 1-6 and its opening / closing lid are provided. Further, although not shown, a material charging facility for charging the melting material into the melting furnace 1-1 is provided on the side of the melting furnace 1-1 with the melting material charging port 1-4 sandwiched between the charging port movable open / close lid 1 −5, and is mainly composed of a material feeder 1-7 and a material bucket car as shown in the reference diagram of FIG. 7a.

溶湯処理炉2は、溶解した溶湯に随伴される金属酸化物を浮上又は沈降させて分離除去し、清浄な溶湯を得る。溶湯処理炉2には、溶湯の処理温度の維持のために上蓋の一端に溶湯処理バーナ2−1が備えられる。また、溶湯処理炉2には、上面に可動蓋2−2が設けられ、これと隣り合って溶解炉1には、溶湯処理炉2との接続蓋1−11が設けられている。また、溶湯保持炉3は、溶湯処理炉2と下部で連通し、清浄な溶湯のみを受湯する。溶湯保持炉3は、出湯用クレードル(図示しない)が装入される出湯室3−3を備え、出湯室3−3は下部で保持室3−1と連通している。また、溶湯保持炉3には、上面に点検、補修用に可動蓋3−2が設けられる。また、溶湯保持炉3は、保持室3−1の下部に浸漬ヒータ3−8が内壁を貫通して挿入配置される。浸漬ヒータ3−8は、溶湯を加熱保持するために、セラミック等の耐火物製保護管内に電気発熱体又は燃焼発熱体を備えたラジアントチューブ型浸漬ヒータが用いられる。 The molten metal processing furnace 2 floats or sinks the metal oxide accompanying the molten metal to separate and remove it, thereby obtaining a clean molten metal. The molten metal processing furnace 2 is provided with a molten metal processing burner 2-1 at one end of the upper lid in order to maintain the molten metal processing temperature. Further, the molten metal treatment furnace 2 is provided with a movable lid 2-2 on the upper surface, and the melting furnace 1 is provided with a connection lid 1-11 with the molten metal treatment furnace 2 adjacent thereto. The molten metal holding furnace 3 communicates with the molten metal processing furnace 2 at the lower part, and receives only clean molten metal. The molten metal holding furnace 3 includes a hot water discharge chamber 3-3 in which a hot water cradle (not shown) is inserted, and the hot water discharge chamber 3-3 communicates with the holding chamber 3-1. Further, the molten metal holding furnace 3 is provided with a movable lid 3-2 on the upper surface for inspection and repair. Further, in the molten metal holding furnace 3, an immersion heater 3-8 is inserted and disposed in the lower part of the holding chamber 3-1. As the immersion heater 3-8, a radiant tube type immersion heater including an electric heating element or a combustion heating element in a protective tube made of refractory such as ceramic is used in order to heat and hold the molten metal.

本発明では、溶解保持炉1において、溶解炉1−1から溶湯処理炉2を、又は溶解炉1−1から溶湯処理炉2及び溶湯保持炉3を分離し移動できる構成にしている。この構成について、溶解保持炉1の函体の観点から説明すると、溶解保持炉1は、通常、鋼製の函体から構成され、溶解炉1−1と溶湯処理炉2の函体の接続部に溶解炉・溶湯処理炉分割フランジ2−4が設けられ、また、溶湯処理炉2と溶湯保持炉3の函体の接続部に溶湯処理炉・溶湯保持炉分割フランジ3−5が設けられる。溶解操業時には、各分割フランジ2−4,3−5は鋼製ボルト、コッタ(くさび)等で締結され、炉の補修時には、締結を外すことにより各分割フランジ2−4,3−5は分離することが可能となる。 In the present invention, the melting and holding furnace 1 is configured such that the molten metal treatment furnace 2 can be separated from the melting furnace 1-1 or the molten metal treatment furnace 2 and the molten metal holding furnace 3 can be separated and moved from the melting furnace 1-1. If this structure is demonstrated from the viewpoint of the box of the melting and holding furnace 1, the melting and holding furnace 1 is usually composed of a steel box, and the connecting portion of the box of the melting furnace 1-1 and the molten metal processing furnace 2. Are provided with a melting furnace / melting furnace dividing flange 2-4, and a molten metal processing furnace / melting furnace dividing flange 3-5 is provided at a connecting portion of the box of the molten metal processing furnace 2 and the molten metal holding furnace 3. During melting operation, each split flange 2-4, 3-5 is fastened with steel bolts, cotters (wedges), etc., and when repairing the furnace, each split flange 2-4, 3-5 is separated by removing the fastening. It becomes possible to do.

溶湯処理炉2及び溶湯保持炉3には、炉の移動手段として、夫々炉の下部に、溶湯処理炉支持装置2−5及び溶湯保持炉支持装置3−6が設けられる。各支持装置2−5、3−6は、図示していないが、各炉2,3の函体の下部に基礎面と対向して平行に、鋼製の床盤を設けることができる。炉の移動は、前記基礎面と床盤に摺動面を設けて、潤滑剤を塗布して油圧ジャッキ等で押して移動させることができる。また、摺動面の代わりに複数のコロ軸を介在させて油圧ジャッキ等で押して移動させることもできる。また、基礎面に移動する方向の軌条を設け、床盤に車輪を設けるか、逆に基礎面に車輪を設け、床盤に移動する方向の軌条を設けることにより、床盤と繋がった炉を移動させることも可能である。また、移動する必要がある溶湯処理炉2又は溶湯処理炉2と溶湯保持炉3の機器に吊り環を前もって設けておけば、起重機や揚重機により吊り上げ、縦、横方向に走行移動することにより溶湯処理炉2又は溶湯処理炉2と溶湯保持炉3の分離移動が可能である。 The molten metal processing furnace 2 and the molten metal holding furnace 3 are provided with a molten metal processing furnace support device 2-5 and a molten metal holding furnace support device 3-6, respectively, at the lower part of the furnace as means for moving the furnace. Although each support apparatus 2-5 and 3-6 is not illustrated, a steel floor board can be provided in the lower part of the box of each furnace 2 and 3 in parallel with the base surface. The furnace can be moved by providing a sliding surface on the foundation surface and the floor, applying a lubricant, and pushing it with a hydraulic jack or the like. In addition, a plurality of roller shafts may be interposed instead of the sliding surface to be pushed and moved by a hydraulic jack or the like. In addition, by providing a rail in the direction of movement to the foundation surface and providing a wheel on the floor, or conversely, providing a wheel on the foundation surface and providing a rail in the direction of movement to the floor, the furnace connected to the floor It is also possible to move it. In addition, if a hanging ring is provided in advance in the molten metal processing furnace 2 or the molten metal processing furnace 2 and the molten metal holding furnace 3 that need to be moved, it can be lifted by a hoist or a hoist and moved in the vertical and horizontal directions. The molten metal treatment furnace 2 or the molten metal treatment furnace 2 and the molten metal holding furnace 3 can be separated and moved.

図4に示すように、アルミニウム合金300kg/hrの溶解保持炉1の溶解炉1−1の耐火物1−9の壁内寸は、材料投入口で幅約0.5m、奥行約0.6m、溶湯処理炉2との接続部で幅約0.5m、高さ約0.6mであり、溶解炉・溶湯処理炉分割フランジ2−4からの奥行が約1.3mであって、材料投入口1−4から溶湯処理炉2の接続部下端までの全高は約2.4mである。溶解炉1−1の耐火物1−9の材質は、耐火度が要求され、かつ、形状が複雑な部位もあるので、主としてAl系耐火レンガ及びAl―SiO系のプラスチック又はキャスタブルの不定形耐火物でライニングされる。溶解炉1−1の耐火物1−9の壁内寸の大きさから分かるように、溶解炉1−1の耐火物1−9の張替又は補修作業は、それを行う作業空間が狭いので、従来、簡易な作業ではなかった。また、溶湯処理炉2の耐火物2−6の内寸は、幅約0.5m、高さ約0.6m、奥行約0.3mである。溶湯処理炉2の耐火物2−6,2−7の材質は、主に、Al―SiO系のプラスチック又はキャスタブルの不定形耐火物でライニングされる。また、溶湯保持炉3の保持炉3−1の耐火物3−7の内寸は、幅約0・9m、奥行約0.95m、高さ約0.6mである。保持炉3−1の耐火物3−7の材質は、従来、シャモット質キャスタブル耐火物が使われていたが、最近では熱伝導率の低い断熱性耐火材ボードを2〜3層の多層化にして用いられ、省エネルギや軽量化にも寄与している。溶解炉1−1、溶湯処理炉2の耐火物1−9、2−6の背面には、通常、赤レンガ等の外壁耐火物6が後詰施工される。 As shown in FIG. 4, the inner dimensions of the refractory 1-9 of the melting furnace 1-1 of the melting and holding furnace 1 of 300 kg / hr aluminum alloy are about 0.5 m wide and about 0.6 m deep at the material inlet. At the connection with the molten metal processing furnace 2, the width is about 0.5m, the height is about 0.6m, and the depth from the melting furnace / molten metal processing furnace split flange 2-4 is about 1.3m. The total height from the port 1-4 to the lower end of the connecting part of the molten metal processing furnace 2 is about 2.4 m. The material of the refractory 1-9 of the melting furnace 1-1 is required to have a refractory degree and has a complicated shape. Therefore, the refractory 1-9 is mainly made of Al 2 O 3 refractory brick and Al 2 O 3 —SiO 2 Lined with plastic or castable amorphous refractories. As can be seen from the size of the inner wall of the refractory 1-9 of the melting furnace 1-1, the work space for performing the replacement or repair work of the refractory 1-9 of the melting furnace 1-1 is narrow. Conventionally, it was not a simple task. Moreover, the internal dimension of the refractory 2-6 of the molten metal processing furnace 2 is about 0.5 m in width, about 0.6 m in height, and about 0.3 m in depth. The materials of the refractories 2-6 and 2-7 of the molten metal processing furnace 2 are mainly lined with Al 2 O 3 —SiO 2 plastic or castable amorphous refractories. Moreover, the internal dimensions of the refractory 3-7 of the holding furnace 3-1 of the molten metal holding furnace 3 are about 0.9 m in width, about 0.95 m in depth, and about 0.6 m in height. The refractory 3-7 of the holding furnace 3-1 has conventionally been made of chamotte castable refractories, but recently, heat insulating refractory boards with low thermal conductivity have been made into two or three layers. It contributes to energy saving and weight reduction. On the back surface of the refractories 1-9 and 2-6 of the melting furnace 1-1 and the molten metal processing furnace 2, an outer wall refractory 6 such as red brick is usually post-packed.

本発明に係る非鉄金属の溶解保持炉1の溶解炉1−1の耐火物1−9の張替、補修工事について、図1〜6を用いて説明する。溶解保持炉1の溶解操業時は、図1に示す状態であって、溶解炉1−1、溶解処理炉2、溶解保持炉3は、溶湯が流れる方向を軸線として一体的に連結されている。また、溶解炉1−1、溶解処理炉2、溶解保持炉3の夫々の内壁の耐火物1−9,1−10,2−6,2−7,3−7は、図4に示す状態で一体的に接合され、溶湯が洩れないようにライニングされている。溶解操業を継続していくと、溶解炉1−1の内張り耐火物1−9の中、溶解バーナ1−2の火炎により装入された非鉄金属が溶解する場所は、傾斜床1−3付近であり、この部位が高温とヒートサイクルと溶融金属及びその酸化物、随伴金属の酸化物等により耐火物1−9が侵食されて行き、最終的に耐火物1−9の張替、補修が必要となる。 The replacement and repair work of the refractory 1-9 of the melting furnace 1-1 of the non-ferrous metal melting and holding furnace 1 according to the present invention will be described with reference to FIGS. The melting and holding furnace 1 is in the state shown in FIG. 1, and the melting furnace 1-1, the melting treatment furnace 2, and the melting and holding furnace 3 are integrally connected with the direction in which the molten metal flows as an axis. . Moreover, the refractories 1-9, 1-10, 2-6, 2-7, 3-7 on the inner walls of the melting furnace 1-1, the melting processing furnace 2, and the melting holding furnace 3 are in the state shown in FIG. Are joined together and lined so that the molten metal does not leak. If the melting operation is continued, the place where the nonferrous metal charged by the flame of the melting burner 1-2 in the lining refractory 1-9 of the melting furnace 1-1 melts near the inclined floor 1-3 The refractory 1-9 is eroded by the high temperature, the heat cycle, the molten metal and its oxide, the oxide of the accompanying metal, etc., and finally the refractory 1-9 can be replaced and repaired. Necessary.

前術したように、従来、耐火物1−9の張替、補修工事が狭隘な炉内で行う必要があったのが、本発明では、作業空間を余分に広く確保できるので、耐火物1−9の張替、補修工事を容易に確実に実施するための構成を成した。すなわち、溶解炉1−1の耐火物1−9の張替、補修工事をするための作業空間を余分に確保するために、(A)溶湯処理炉2を移動して、その跡を作業空間とする場合、(B)溶湯処理炉2と溶湯保持炉3を移動して、その跡を作業空間とする場合とがある。 As the previous operation, the refractory 1-9 has been conventionally required to be replaced and repaired in a narrow furnace. In the present invention, an extra wide work space can be secured. The structure for carrying out -9 relocation and repair work easily and reliably. That is, in order to secure an extra work space for replacing and repairing the refractory 1-9 of the melting furnace 1-1, (A) the molten metal processing furnace 2 is moved, and the trace is saved in the work space. In this case, (B) the molten metal processing furnace 2 and the molten metal holding furnace 3 may be moved, and the trace may be used as a work space.

(A)の場合の耐火物1−9の張替、補修工事を説明すると、図1,図4の状態で溶解炉1−1の溶解操業を停止し、溶湯処理炉2と溶湯保持炉3の溶湯を汲み出して、全体装置を冷却する。冷却した後、図2、5に示すように、溶解炉1−1に対して溶湯処理炉2を分離移動するために、溶解炉・溶湯処理炉分割フランジ2−4の締結を解放し、分離できる状態にする。また、溶解炉1−1の接続部蓋1−11と溶湯処理炉2の可動蓋2−2を開けるか、取り外して後、溶解炉・溶湯処理炉接続部耐火物1−10の不定形耐火物をA−Aラインで部分的に壊して縁切りを行う。同様に、溶湯保持炉3に対して溶湯処理炉2を分離移動するために、溶湯処理炉・溶湯保持炉分割フランジ3−5の締結を解放し、分離できる状態にし、次いで溶湯処理炉・溶湯保持炉接続部耐火物2−7の不定形耐火物をB−Bラインで部分的に壊して縁切りを行う。 Explaining the replacement and repair work of the refractory 1-9 in the case of (A), the melting operation of the melting furnace 1-1 is stopped in the state shown in FIGS. 1 and 4, and the molten metal processing furnace 2 and the molten metal holding furnace 3 are stopped. Pump out the molten metal and cool the entire system. After cooling, in order to separate and move the molten metal treatment furnace 2 with respect to the melting furnace 1-1, as shown in FIGS. Make it ready. In addition, after opening or removing the connecting portion lid 1-11 of the melting furnace 1-1 and the movable lid 2-2 of the molten metal processing furnace 2, the unshaped fireproofing of the refractory 1-10 of the melting furnace / melting furnace connecting portion. The material is partially broken along the AA line and trimmed. Similarly, in order to separate and move the molten metal processing furnace 2 with respect to the molten metal holding furnace 3, the fastening of the molten metal processing furnace / molten metal holding furnace split flange 3-5 is released to make it separable, and then the molten metal processing furnace / molten metal The refractory of the holding furnace connection part refractory 2-7 is partially broken at the BB line to perform edge cutting.

前述した溶湯処理炉2と溶解炉1−1及び溶湯保持炉3との縁切りが済めば、溶湯処理炉支持装置2−5の摺動又は転動を施して、溶湯処理炉2を軸線と直角方向に横移動させる。移動が済めば、溶湯処理炉2の設置場所であった跡地に奥行約1m、幅方向に制限が無い作業空間が創出できる。また、横移動の代わりに、溶湯処理炉2を吊り上げて移動し、その跡地を作業空間とすることもできる。この作業空間を利用して、溶解炉1−1の耐火物1−9の張替、補修工事が効率良く、出来上がりの品質を良好にして達成できる。該張替、補修工事が終了すれば、前述の手順を逆に実施して、溶解保持炉1を操業可能な状態に戻すことが容易に確実に実施できる。なお、溶解炉・溶湯処理炉接続部耐火物1−10のA−Aライン及び溶湯処理炉・溶湯保持炉接続部耐火物2−7のB−Bラインの縁切した耐火物の復旧はプラスチック耐火物をラミングして用いるのが好適である。 When the above-described cutting of the molten metal processing furnace 2, the melting furnace 1-1, and the molten metal holding furnace 3 is completed, the molten metal processing furnace support device 2-5 is slid or rolled to make the molten metal processing furnace 2 perpendicular to the axis. Move sideways in the direction. When the movement is completed, a working space with a depth of about 1 m and no limitation in the width direction can be created on the former site where the molten metal treatment furnace 2 was installed. Further, instead of lateral movement, the molten metal treatment furnace 2 can be lifted and moved, and the site can be used as a work space. By utilizing this work space, the replacement and repair work of the refractory 1-9 of the melting furnace 1-1 can be efficiently performed and the finished quality can be improved. When the replacement and repair work is completed, it is possible to easily and reliably return the melting and holding furnace 1 to an operable state by carrying out the above procedure in reverse. In addition, the restoration of the refractory cut off at the AA line of the refractory 1-10 of the melting furnace / melting furnace connection portion and the BB line of the refractory refractory 2-7 of the melting treatment furnace / melt holding furnace connection portion is a plastic It is preferable to use a refractory after ramming.

(B)の場合の耐火物1−9の張替、補修工事を説明すると、図1,4の状態で溶解炉1−1の溶解操業を停止し、溶湯処理炉2と溶湯保持炉3の溶湯を汲み出して、全体装置を冷却する。冷却した後、図3、6に示すように、溶解炉1−1に対して溶湯処理炉2を分離移動するために、溶解炉・溶湯処理炉分割フランジ2−4の締結を解放し、分離できる状態にする。また、溶解炉1−1の接続部蓋1−11と溶湯処理炉2の可動蓋2−2を開けるか、取り外して後、溶解炉・溶湯処理炉接続部耐火物1−10の不定形耐火物をA−Aラインで部分的に壊して縁切りを行う。 Explaining the replacement and repair work of the refractory 1-9 in the case of (B), the melting operation of the melting furnace 1-1 is stopped in the state of FIGS. Pump the molten metal and cool the entire system. After cooling, in order to separate and move the molten metal treatment furnace 2 with respect to the melting furnace 1-1, as shown in FIGS. Make it ready. In addition, after opening or removing the connecting portion lid 1-11 of the melting furnace 1-1 and the movable lid 2-2 of the molten metal processing furnace 2, the unshaped fireproofing of the refractory 1-10 of the melting furnace / melting furnace connecting portion. The material is partially broken along the AA line and trimmed.

前述した溶湯処理炉2と溶解炉1−1との縁切りが済めば、溶湯処理炉支持装置2−5及び溶湯保持炉支持装置3−6の機能である摺動又は転動を施して、溶湯処理炉2と溶湯保持炉3を軸線方向に移動させる。移動が済めば、溶湯処理炉2の設置場所であった跡地に軸線である奥行方向に制限が少ない作業空間が創出できる。また、移動の代わりに、溶湯処理炉2と溶湯保持炉3を吊り上げて移動し、その跡地を作業空間とすることもできる。この作業空間を利用して、溶解炉1−1の耐火物1−9の張替、補修工事が効率良く、出来上がりの品質を良好にして達成できる。該張替、補修工事が終了すれば、前述の手順を逆に実施して、溶解保持炉1を操業可能な状態に戻すことが容易に確実に実施できる。なお、溶解炉・溶湯処理炉接続部耐火物1−10のA−Aラインの縁切した耐火物の復旧はプラスチック耐火物をラミングして用いるのが好適である。 When the edge cutting between the molten metal processing furnace 2 and the melting furnace 1-1 is completed, sliding or rolling which is a function of the molten metal processing furnace support device 2-5 and the molten metal holding furnace support device 3-6 is performed. The processing furnace 2 and the molten metal holding furnace 3 are moved in the axial direction. When the movement is completed, a work space with less restrictions in the depth direction, which is the axis, can be created in the former site where the molten metal treatment furnace 2 was installed. Further, instead of moving, the molten metal processing furnace 2 and the molten metal holding furnace 3 can be lifted and moved, and the site can be used as a work space. By utilizing this work space, the replacement and repair work of the refractory 1-9 of the melting furnace 1-1 can be efficiently performed and the finished quality can be improved. When the replacement and repair work is completed, it is possible to easily and reliably return the melting and holding furnace 1 to an operable state by carrying out the above procedure in reverse. It should be noted that it is preferable to use a plastic refractory for the restoration of the refractory cut off at the AA line of the refractory 1-10 of the melting furnace / melting furnace connection portion.

前述したように、本発明の溶解保持炉1や溶解炉の耐火物の張替、補修方法によれば、従来の溶解炉1−1の耐火物1−9の張替、補修工事を狭隘な炉内で行う代わりに、本発明では耐火物1−9の張替、補修の作業空間を十分に広く確保できるので、耐火物1−9の張替、補修工事を容易に、確実に、出来上がり品質を良好に実施することができる。また、このように結果的に非鉄金属の小型の溶解保持炉1の特長である多品種、少量生産などの小回りを生かせることが可能となり、ダイキャスト業界の発展に貢献できる。 As described above, according to the melting and holding furnace 1 and the melting furnace refractory replacement and repair method of the present invention, the conventional refractory 1-9 replacement and repair work of the melting furnace 1-1 is narrow. Instead of performing in the furnace, the present invention can secure a sufficiently wide working space for the refractory 1-9, so that the refractory 1-9 can be replaced and repaired easily and reliably. Good quality can be implemented. In addition, as a result, it is possible to take advantage of the small variety such as multi-product and small-volume production, which are the features of the small non-ferrous metal melting and holding furnace 1, and contribute to the development of the die casting industry.

また、本発明によれば、溶解炉、溶湯処理炉、溶湯保持炉を個別に連結可能な構成であるので、それぞれ別工場で同時に製作することも可能であり、製作期間の短縮を図ることが可能である。また、各炉を個別に製作、搬入して、現場で結合、一体化できるので、輸送、設置費の節約が可能である。また、各炉は単体で製品の検査、修正ができるので、品質管理がし易い。また、各炉とも函体のみならず、耐火物の予備施工をした状態での製作も可能で、各炉の連結、結合も簡易であり、製作費用、納期とも経済的に最適化し易い。 Further, according to the present invention, since the melting furnace, the molten metal processing furnace, and the molten metal holding furnace can be individually connected, they can be simultaneously manufactured in different factories, and the manufacturing period can be shortened. Is possible. In addition, each furnace can be individually manufactured and carried in, and can be combined and integrated on site, so that transportation and installation costs can be saved. In addition, each furnace can inspect and modify the product as a single unit, so quality control is easy. In addition, each furnace can be manufactured not only in a box but also in a state where preliminary construction of refractories is possible, and the connection and connection of each furnace are simple, and it is easy to optimize the manufacturing cost and delivery date economically.

非鉄金属や小型炉のみならず、通常の溶解保持炉の製作や耐火物修理に関して利用できる。 It can be used not only for non-ferrous metals and small furnaces but also for ordinary melting and holding furnaces and refractory repairs.

1:溶解保持炉 1−1:溶解炉 1−2:溶解バーナ 1−3:傾斜床
1−4:材料投入口 1−5:投入口可動蓋 1−6:点検口
1−7:材料投入機 1−8:材料バケットカー 1−9:溶解炉耐火物
1−10:溶解炉・溶湯処理炉接続部耐火物 1−11:接続部蓋
2:溶湯処理炉 2−1:溶湯処理バーナ 2−2:可動蓋 2−3:外壁
2−4:溶解炉・溶湯処理炉分割フランジ 2−5:溶湯処理炉支持装置
2−6:溶湯処理炉耐火物 2−7:溶湯処理炉・溶湯保持炉接続部耐火物
3:溶湯保持炉 3−1:保持室 3−2:可動蓋 3−3:出湯室
3−4:外壁 3−5:溶湯処理炉・溶湯保持炉分割フランジ
3−6:溶湯保持炉支持装置 3−7:溶湯保持炉耐火物 3−8:浸漬ヒータ
A−A:溶解炉・溶湯処理炉耐火物分割ライン
B−B:溶湯処理炉・溶湯保持炉耐火物分割ライン
1: Melting and holding furnace 1-1: Melting furnace 1-2: Melting burner 1-3: Inclined floor 1-4: Material charging port 1-5: Loading port movable lid 1-6: Inspection port
1-7: Material charging machine 1-8: Material bucket car 1-9: Melting furnace refractory 1-10: Melting furnace / molten metal processing furnace connection part refractory 1-11: Connecting part lid 2: Molten metal processing furnace 2- 1: Molten treatment burner 2-2: Movable lid 2-3: Outer wall 2-4: Melting furnace / molten treatment furnace split flange 2-5: Molten treatment furnace support device 2-6: Molten treatment furnace refractory 2-7: Molten metal processing furnace and molten metal holding furnace connection part refractory 3: molten metal holding furnace 3-1: holding chamber 3-2: movable lid 3-3: hot water chamber
3-4: Outer wall 3-5: Molten metal processing furnace / molten metal holding furnace split flange 3-6: Molten metal holding furnace support device 3-7: Molten metal holding furnace refractory 3-8: Immersion heater AA: Melting furnace / molten metal Processing furnace refractory dividing line BB: Molten metal processing furnace and molten metal holding furnace refractory dividing line

Claims (4)

非鉄金属を溶解バーナにより加熱溶解して溶湯を得る溶解炉と該溶湯を処理する溶湯処理炉と、処理した溶湯を浸漬ヒータ又は面燃焼バーナにより定温に加熱保持して貯湯する溶湯保持炉と、から成る溶解保持炉であって、前記溶解炉の一側面の少なくとも一部と前記溶湯処理炉の一側面の少なくとも一部とが接触する接合面と、前記接合面を貫通する接続部とを備える溶解保持炉において、前記溶解炉の耐火物の張替、補修工事を容易にするために、前記溶解炉から前記溶湯処理炉を、又は前記溶解炉から前記溶湯処理炉及び前記溶湯保持炉を前記接合面で分離して移動可能に構成することを特徴とする非鉄金属の溶解保持炉。 A melting furnace to obtain a molten metal more heated and dissolved nonferrous metals dissolved burners, and the melt processing furnace for processing the solution hot, melt storage of hot water storage heated kept in a constant temperature by the treated molten metal immersion heater or a surface combustion burner A melting and holding furnace comprising: a joining surface that contacts at least a part of one side of the melting furnace and at least a part of one side of the molten metal processing furnace; and a connection portion that penetrates the joining surface In order to facilitate the replacement and repair work of the refractory of the melting furnace, the melting furnace and the molten metal processing furnace and the molten metal processing furnace and the molten metal holding from the melting furnace A non-ferrous metal melting and holding furnace characterized in that the furnace is configured to be movable by being separated at the joint surface . 前記溶解炉と前記溶湯処理炉の前記接合面を分離、解放して、前記工事用の余地空間を創出するために、前記溶解炉から前記溶湯処理炉を、又は前記溶解炉から前記溶湯処理炉及び前記溶湯保持炉を分離して移動できるよう移動手段を設けたことを特徴とする請求項1に記載の非鉄金属の溶解保持炉。 The melting furnace and separating said bonding surface of said molten metal processing furnace, to release, in order to create room space for the construction, the melt processing furnace the molten metal processing furnace from the melting furnace, or from the melting furnace and melting and holding furnace nonferrous metals according to claim 1, characterized in that a moving means to allow movement to separate the molten metal holding furnace. 前記移動手段が、前記溶湯処理炉に、又は前記溶湯処理炉と前記溶湯保持炉に対して、起重機による吊り上げ移動、床盤におけるジャッキによる摺動移動、又は床盤におけるジャッキによる転がり移動であることを特徴とする請求項2に記載の非鉄金属の溶解保持炉。 The moving means is a lifting movement by a hoist, a sliding movement by a jack on the floor board, or a rolling movement by a jack on the floor board to the molten metal processing furnace or to the molten metal processing furnace and the molten metal holding furnace. The non-ferrous metal melting and holding furnace according to claim 2. 請求項1又は2又は3に記載の非鉄金属の溶解保持炉における溶解炉の耐火物張替、補修工事において、前記溶解炉を休止した後、前記溶解炉と前記溶湯処理炉の前記接合面を分離、解放し、次いで前記溶解炉から前記溶湯処理炉を、又は前記溶湯処理炉、前記溶湯保持炉を分離して離間させて余地空間を創出し、次いで離間させ該余地空間を作業空間として耐火物の張替、補修工事を行うことを特徴とする溶解炉の耐火物張替、補修方法。 Claim 1 or 2 or refractory of the melting furnace in the melting and holding furnace nonferrous metals according to 3 Chokawa, in repair work, after resting the melting furnace, the joining surfaces of the melt processing furnace and the melting furnace separated, releasing, the melt processing furnace from the melting furnace and then, or the melt processing furnace, is separated by separating the molten metal holding furnace to create room space, the then該余land space is separated as a working space Refractory replacement and repair method for melting furnaces, characterized by refractory replacement and repair work.
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