JPS6038153Y2 - metal melting furnace - Google Patents
metal melting furnaceInfo
- Publication number
- JPS6038153Y2 JPS6038153Y2 JP16372783U JP16372783U JPS6038153Y2 JP S6038153 Y2 JPS6038153 Y2 JP S6038153Y2 JP 16372783 U JP16372783 U JP 16372783U JP 16372783 U JP16372783 U JP 16372783U JP S6038153 Y2 JPS6038153 Y2 JP S6038153Y2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- molten metal
- crucible
- exhaust port
- flame exhaust
- 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
Links
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Description
【考案の詳細な説明】
本考案は、第1図に示すように、ルツボdを吊り掛ける
ようにした燃焼部aに、燃焼炎の吹込口すと排炎口Cと
を設けた炉体を改良し、排炎口Cから煙突に排出して投
棄する熱エネルギーを善用して金属材料を溶解し、その
溶湯をルツボの口部に流出させるようにしたものである
。[Detailed description of the invention] As shown in Fig. 1, the present invention includes a furnace body in which a combustion flame inlet and a flame exhaust port C are provided in a combustion part a on which a crucible d is suspended. This has been improved so that the thermal energy discharged and dumped from the flame outlet C into the chimney is used to melt the metal material, and the molten metal flows out to the mouth of the crucible.
前記した炉体は、吹込口から吹込まれる重油炎、街中ガ
ス炎等によって、燃焼部aに吊り掛けたルツボdの底を
加熱し、該ルツボに投入した金属材料を溶解すると共に
、排炎を排炎口Cに接続した煙突から大気中に排棄する
ようにしているものであって、ルツボdは吹込口すから
吹込まれる高熱の火炎により加熱されるので、投入され
た金属材料にとっては苛酷な加熱条件で加熱されて溶湯
に気泡を生じ易くなり、これが鋳物巣発生の因子となる
ばかりでなく、熱エネルギー利用上不利を招いている。The above-mentioned furnace body heats the bottom of the crucible d suspended in the combustion section a by heavy oil flame, street gas flame, etc. blown in from the inlet, melts the metal material put into the crucible, and expels the flame. is discharged into the atmosphere from a chimney connected to a flame exhaust port C, and the crucible d is heated by the high-temperature flame blown in from the inlet, so the metal material put into it is The molten metal is heated under harsh heating conditions and tends to generate bubbles in the molten metal, which not only causes casting cavities but also causes disadvantages in the use of thermal energy.
本考案は従来の金属溶解用炉体のかかる欠点を除くこと
を目的とするものである。The present invention aims to eliminate such drawbacks of conventional metal melting furnace bodies.
本考案の好適な一実施例を第2図〜第5図について説明
する。A preferred embodiment of the present invention will be described with reference to FIGS. 2-5.
図中1は上口に鉄ルツボ又は黒鉛ルツボ5を吊り掛けた
炉体の燃焼部であって、これに燃焼炎の吹込口2とL形
の排炎口3とを設け、吹込口2の外部に重油炎発生装置
もしくはガスバーナ6を設置して燃焼炎を内部に吹込む
。In the figure, reference numeral 1 denotes the combustion section of a furnace body with an iron crucible or graphite crucible 5 suspended from the upper opening, and this is provided with an inlet 2 for combustion flames and an L-shaped flame exhaust outlet 3. A heavy oil flame generator or gas burner 6 is installed outside and combustion flame is blown into the inside.
排炎口3は燃焼部1から突出する耐火構造物4に上向き
を以って開口させたものであって、その開口と炉体の燃
焼部1上に前記ルツボ5の口部を取り巻くL形の排炎道
構成体7を重ねる。The flame exhaust port 3 is an upwardly opened refractory structure 4 protruding from the combustion section 1, and an L-shaped opening surrounding the mouth of the crucible 5 is formed between the opening and the combustion section 1 of the furnace body. The flame evacuation duct structure 7 is overlapped.
該構成体7は耐火物により構築したもので、内部に排炎
口3に連通ずる始端口部8の立上り部分に接続させたL
形の排炎道9を設け、該排炎道9の末端部に上方に開口
する材料投入口兼排気口10を形威し、該排気口10と
排炎口3との間、具体的には始端口部8との間の底部に
、排炎口3の方向を順次に低くした溶湯溜り11を設け
、該溶湯溜りの低端に前記ルツボ5の口部に向って開口
する溶湯取出孔12を設ける。The structure 7 is constructed of refractory material, and has an L connected to the rising part of the starting end port 8 that communicates with the flame exhaust port 3 inside.
A flame exhaust path 9 with a shape of A molten metal pool 11 is provided at the bottom between the starting end port 8 and the direction of the flame exhaust port 3 is successively lowered, and a molten metal take-out hole is provided at the lower end of the molten metal pool and opens toward the mouth of the crucible 5. 12 will be provided.
該取付孔12の外部には案内樋13を固着する。A guide trough 13 is fixed to the outside of the mounting hole 12.
溶湯溜り11の天井をなす排炎道9の天井は耐火度の高
い炉天井錬瓦を使用する。The ceiling of the flame exhaust path 9 forming the ceiling of the molten metal pool 11 is made of wrought roof tiles with high fire resistance.
溶湯取出口12には耐火栓14を施す。A fireproof plug 14 is provided at the molten metal outlet 12.
15は材料投入口兼排気口10の上方に設けた煙突であ
って、下端の周りに笠16を設ける。A chimney 15 is provided above the material input/exhaust port 10, and a cap 16 is provided around the lower end.
前記実施例の金属溶解炉は、アルミ、アルミ系軽合金な
どの溶融温度の比較的に低い金属の溶解に使用するもの
で、重油炎発生装置若しくはガスバーナ6から吹込口2
に吹込まれる火焔は溶湯を貯えたルツボ5の底を加熱し
て排焔口3から始端口部8を経て排炎道9に入り、材料
投入口兼排気口10から出て煙突15に吸込まれ、排炎
道9の道壁を加熱する。The metal melting furnace of the above embodiment is used for melting metals with relatively low melting temperatures, such as aluminum and aluminum-based light alloys.
The flame blown into the furnace heats the bottom of the crucible 5 storing the molten metal, enters the flame exhaust path 9 from the flame exhaust port 3 through the starting end port 8, exits from the material input/exhaust port 10, and is sucked into the chimney 15. This heats the wall of the flame exhaust path 9.
材料投入口兼排気口10から、アルミインゴットなどの
金属塊材料を金属挾み等によって内部に供給すると、排
炎道9を通る排気炎並に政道の道壁の温度により融解し
、これが溶湯溜り11に逆流し、排炎道9の天井の輻射
熱などで加熱を続けられ、溶湯取出口12の耐火栓14
が施してなければ案内樋13を経てルツボ5に流れ込み
、耐火栓14が施してあれば、溶湯溜り11に溜って適
当な溶融温度に加熱される。When a metal lump material such as an aluminum ingot is fed into the interior from the material input/exhaust port 10 using a metal clamp, it is melted by the exhaust flame passing through the flame exhaust path 9 and the temperature of the road wall of the government road, and this melts into a molten metal pool. 11, and is continued to be heated by radiant heat from the ceiling of the flame exhaust channel 9, and the fireproof plug 14 of the molten metal outlet 12 is heated.
If the molten metal is not provided, it will flow into the crucible 5 through the guide trough 13, and if the fireproof stopper 14 is provided, it will accumulate in the molten metal pool 11 and be heated to an appropriate melting temperature.
耐火栓14を施しているときは、ルツボ5の溶湯金属の
汲出しによる消費と、材料の溶融状態とを見合わせて耐
火栓14を抜き、溶湯溜り11の溶融を溶湯取出口から
ルツボ5に流し込む。When the fireproof plug 14 is applied, the fireproof plug 14 is removed while considering the consumption of the molten metal in the crucible 5 due to pumping out and the molten state of the material, and the molten metal in the molten metal pool 11 is poured into the crucible 5 from the molten metal outlet. .
本考案は上記に例示した構成になり、金属材料をルツボ
5に投入して加熱溶解を施すものでなく、該ルツボ5の
上口を取巻いて設けた排炎道9の末端の材料投入口兼排
気口10から排炎道9に供給し、燃焼部1でルツボ5の
底を加熱して熱エネルギーを幾分失った火炎と、その火
炎により加熱された排炎道9の道壁の比較的温和な温度
により加熱されて融解するから、ルツボに金属材料の塊
りを投入して溶融する場合のように溶湯中に気泡を混入
することがなく、他方ルツボ5には溶湯取出口12から
流し込んだ溶湯だけを湛え、金属材料塊を投入すること
がないので、何時でも底まで溶湯を汲み上げて鋳造に使
用することができる。The present invention has the configuration as exemplified above, and the metal material is not put into the crucible 5 and heated and melted, but the material input port is provided at the end of the flame exhaust channel 9 which is provided surrounding the upper mouth of the crucible 5. Comparison of the flame that is supplied to the flame exhaust channel 9 from the exhaust port 10 and has lost some thermal energy by heating the bottom of the crucible 5 in the combustion section 1, and the wall of the flame exhaust channel 9 heated by the flame. Since it is heated and melted at a moderate temperature, air bubbles are not mixed into the molten metal unlike when a lump of metal material is put into the crucible and melted. Since only the poured molten metal is stored in the tank and there is no need to add lumps of metal material, the molten metal can be pumped up to the bottom at any time and used for casting.
又、溶湯取出口12から溶融を流し込まれたルツボ5は
前記のように底を加熱されて鋳造に適した流動性を保持
するが、その溶湯中に気泡を混入することは殆んどない
から、鋳巣のない良好な鋳物の鋳造に供用できると共に
、吹込口2から吹込まれる燃焼部の排棄温度を善用して
金属溶融に使用するものであるので、排熱エネルギーを
極く有利に使用することができ、さらに図示のように排
炎道構成体7を上置き型にすれば、第1図に例示した在
来の金属溶解炉にも本考案を適用できる等の効果をもつ
。In addition, the bottom of the crucible 5 into which the molten metal is poured from the molten metal outlet 12 is heated as described above and maintains fluidity suitable for casting, but there is almost no chance of air bubbles being mixed into the molten metal. , it can be used for casting good quality castings without porosity, and the exhaust temperature of the combustion part blown in from the blowing port 2 can be used to melt metal, so the exhaust heat energy is extremely advantageous. Furthermore, if the flame exhaust duct structure 7 is of the top-mounted type as shown in the figure, the present invention can be applied to the conventional metal melting furnace illustrated in FIG. .
第1図は従来のルツボ加熱型金属溶解炉の斜視図、第2
〜5図は本考案の実施例を示し、第2図は斜視図、第3
図は第2図C−C線切断拡大側面図、第4図は第2図C
−C線切断拡大側面図、第5図は第2図C−C線切断拡
大側面図である。
1・・・・・・燃焼部、2・・・・・・吹込口、3・・
・・・・排炎口、5・・・・・・ルツボ、9・・・・・
・排炎道、10・・・・・・材料投入口兼排気口、11
・・・・・・溶湯溜り、12・・・・・・溶湯取出口、
15・・・・・・煙突。Figure 1 is a perspective view of a conventional crucible heating type metal melting furnace;
Figures 5 to 5 show embodiments of the present invention, Figure 2 is a perspective view, Figure 3 is a perspective view, and Figure 3 is a perspective view.
The figure is an enlarged side view cut along the line C-C in Figure 2, and Figure 4 is an enlarged side view of Figure 2 C.
FIG. 5 is an enlarged side view cut along line C-C in FIG. 2. 1... Combustion part, 2... Inlet, 3...
...Flame exhaust port, 5... Crucible, 9...
・Flame exhaust path, 10...Material input and exhaust port, 11
... Molten metal reservoir, 12... Molten metal outlet,
15...Chimney.
Claims (1)
口と排炎口とを設けた炉体において、前記排炎口に接続
して炉体の上面でルツボの口部を繞るほぼL形の排炎道
を構築し、その排炎道には末端部に上方に開口する材料
投入口兼排気口を設けると共に、前記材料投入口と排炎
口との間の底部に、排炎口の方向を順次に低くした溶湯
溜りを設け、その溶湯溜りの低端に前記ルツボの口部に
向って開口する溶湯取出孔を設けたことを特徴とする金
属溶解炉。In a furnace body in which a combustion flame inlet and a flame exhaust port are provided in a combustion section in which a crucible is hung, a portion of the furnace body that is connected to the flame exhaust port and covers the mouth of the crucible on the upper surface of the furnace body. An L-shaped flame exhaust path is constructed, and the flame exhaust path is provided with a material input port and exhaust port that opens upward at the end, and a flame exhaust port is provided at the bottom between the material input port and the flame exhaust port. 1. A metal melting furnace characterized in that a molten metal reservoir is provided whose mouth is gradually lowered, and a molten metal outlet hole that opens toward the mouth of the crucible is provided at the lower end of the molten metal reservoir.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16372783U JPS6038153Y2 (en) | 1983-10-21 | 1983-10-21 | metal melting furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16372783U JPS6038153Y2 (en) | 1983-10-21 | 1983-10-21 | metal melting furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6069992U JPS6069992U (en) | 1985-05-17 |
JPS6038153Y2 true JPS6038153Y2 (en) | 1985-11-14 |
Family
ID=30359161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16372783U Expired JPS6038153Y2 (en) | 1983-10-21 | 1983-10-21 | metal melting furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6038153Y2 (en) |
-
1983
- 1983-10-21 JP JP16372783U patent/JPS6038153Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6069992U (en) | 1985-05-17 |
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