JPS6236057Y2 - - Google Patents
Info
- Publication number
- JPS6236057Y2 JPS6236057Y2 JP14179083U JP14179083U JPS6236057Y2 JP S6236057 Y2 JPS6236057 Y2 JP S6236057Y2 JP 14179083 U JP14179083 U JP 14179083U JP 14179083 U JP14179083 U JP 14179083U JP S6236057 Y2 JPS6236057 Y2 JP S6236057Y2
- Authority
- JP
- Japan
- Prior art keywords
- melting
- chamber
- burner
- holding chamber
- preheating
- 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
- 238000002844 melting Methods 0.000 claims description 67
- 230000008018 melting Effects 0.000 claims description 66
- 229910052751 metal Inorganic materials 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 44
- 239000007769 metal material Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 description 6
- 238000004512 die casting Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- -1 aluminum Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案はアルミニウムなどの低融点金属を溶
解する金属溶解装置に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a metal melting device for melting low melting point metals such as aluminum.
（従来技術）
アルミニウムなどの低融点金属を溶解する金属
溶解装置としては、たとえば特開昭51−140810号
公報に記載のものが知られている。この種従来の
溶解装置は、常時予熱溶解室の略満杯まで装入さ
れている材料を、予熱溶解室の下部に設けられて
いる溶解バーナによつて溶融温度（約660℃）に
加熱溶解し、溶湯を予熱溶解室の下部に連続して
設けられた溶湯取出樋上に導き、この樋上の溶湯
を昇温バーナによつて鋳造温度（約720℃）に昇
温させたのち、インゴツトケースに導入してイン
ゴツトを形成するとともに、上記溶解バーナの排
ガスを予熱溶解室の上方に導いて溶解帯の上方に
存在している材料を予熱して熱効率の向上を図る
ようになされている。(Prior Art) As a metal melting apparatus for melting low-melting point metals such as aluminum, the one described in, for example, Japanese Patent Application Laid-open No. 140810/1983 is known. This kind of conventional melting equipment heats and melts the material charged into the preheating melting chamber until it is almost full to the melting temperature (approximately 660°C) using a melting burner installed at the bottom of the preheating melting chamber. The molten metal is guided onto the molten metal take-out gutter provided continuously at the bottom of the preheating melting chamber, and the molten metal on this gutter is heated to the casting temperature (approximately 720°C) by a heating burner, and then transferred to the ingot case. At the same time, the exhaust gas from the melting burner is guided above the preheating melting chamber to preheat the material present above the melting zone, thereby improving thermal efficiency.
一方、上記の金属溶解装置で得た溶湯をダイカ
スト機に供給してダイカスト製品を得る場合に
は、上記溶湯取出樋に代えて溶湯を収容する保持
室が予熱溶解室に連続して設けられ、昇温バーナ
によつて鋳造温度に昇温された保持室内の溶湯を
たとえば取鍋で取出し、ダイカスト機に付設の保
温炉に供給される。 On the other hand, when supplying the molten metal obtained by the above-mentioned metal melting device to a die-casting machine to obtain a die-cast product, a holding chamber for accommodating the molten metal is provided in succession to the preheating melting chamber in place of the molten metal take-out gutter, The molten metal in the holding chamber, heated to the casting temperature by the heating burner, is taken out using a ladle, for example, and is supplied to a heat-retaining furnace attached to the die-casting machine.
ダイカスト機に供給される金属材料の溶解量の
制御は、ダイカスト機の保温炉に残つている溶湯
量（残湯量）と、生産計画にもとづく使用予定量
と、次期必要量（所定時間径過後の必要予定量）
と、保持室内の溶湯量などの制御データにもとづ
いて溶解バーナの開度や着火数量をコントロール
することによつてなされる。一方、昇温バーナは
保持室内の溶湯を鋳造温度に昇温させ、かつこの
温度を保持しなければならないために、保持室内
の溶湯の温度検出信号によつてコントロールされ
た開度で連続的に作動され、排ガスが予熱溶解室
を通過する。したがつて、保持室内の溶湯の湯面
が満杯に近づき、この状態が検出されることで溶
解バーナが停止されているのにもかかわらず、昇
温バーナの排ガスが予熱溶解室を通過することに
よつて材料の溶解が促進され、その結果、保持室
から溶湯が溢出する事態が生じる。 Control of the melted amount of metal material supplied to the die-casting machine is based on the amount of molten metal remaining in the insulating furnace of the die-casting machine (residual metal amount), the amount scheduled to be used based on the production plan, and the next required amount (after a specified time period has elapsed). (Required amount)
This is done by controlling the opening degree of the melting burner and the amount of ignition based on control data such as the amount of molten metal in the holding chamber. On the other hand, since the temperature rising burner must raise the temperature of the molten metal in the holding chamber to the casting temperature and maintain this temperature, it continuously operates at an opening controlled by the temperature detection signal of the molten metal in the holding chamber. When activated, the exhaust gas passes through the preheated melting chamber. Therefore, even though the melting burner is stopped when the molten metal level in the holding chamber is nearing full and this state is detected, the exhaust gas from the heating burner may pass through the preheating melting chamber. This accelerates the melting of the material, resulting in a situation where molten metal overflows from the holding chamber.
このような事態は、従来予熱溶解室内の材料を
全て取り出すことによつて防止されているが、予
熱溶解室には予熱を有効に行なうために材料が常
時略満杯に装入されているから、取出し作業が相
当にわずらわしい上、すでに予熱されている材料
が取出されることでエネルギーロスが大きくな
り、熱効率が大幅に低下する欠点がある。 Conventionally, this kind of situation has been prevented by taking out all the materials in the preheating melting chamber, but since the preheating melting chamber is always filled with materials to ensure effective preheating, The disadvantage is that the extraction work is quite cumbersome, and that energy loss is large as material that has already been preheated is extracted, resulting in a significant drop in thermal efficiency.
（考案の目的）
この考案は上記従来の欠点を改善するためにな
されたもので、溶解バーナのたとえば停止時に、
昇温バーナの排ガスによつて材料が溶解されて保
持室から溢出するのを防止するとともに、有効予
熱を確保して熱効率を向上させ得る金属溶解装置
を提供することを目的とする。(Purpose of the invention) This invention was made to improve the above-mentioned conventional drawbacks. For example, when the melting burner is stopped,
It is an object of the present invention to provide a metal melting apparatus that can prevent materials from being melted by the exhaust gas of a heating burner and overflowing from a holding chamber, and can improve thermal efficiency by ensuring effective preheating.
（考案の構成）
この考案は金属材料が上部から装入可能で下部
に材料の溶解バーナを備えた材料の予熱溶解室
と、予熱溶解室の下部に連続し溶解された金属溶
湯を収容する保持室と、保持室内の溶湯の温度を
上昇させる昇温バーナとを備え、保持室の昇温バ
ーナの排ガスが予熱溶解室を通過もしくは通過し
ないように、保持室の溶湯レベルを検出する湯面
検出器の検出信号にもとづいて開閉弁を開閉制御
するようになされている。(Structure of the device) This device consists of a material preheating melting chamber that can be charged from the top and is equipped with a material melting burner at the bottom, and a holding chamber that is continuous to the bottom of the preheating melting chamber and accommodates the melted metal. and a heating burner that raises the temperature of the molten metal in the holding chamber, and a molten metal level detection system that detects the level of the molten metal in the holding chamber so that the exhaust gas from the heating burner in the holding chamber does not pass or pass through the preheating melting chamber. The on-off valve is controlled to open and close based on the detection signal of the device.
（実施例）
以下、この考案の実施例を図面にしたがつて説
明する。(Example) Hereinafter, an example of this invention will be described with reference to the drawings.
図面はこの考案に係る金属溶解装置の縦断面図
であり、同図において１は予熱溶解室、２は保持
室で、予熱溶解室１は金属材料（たとえばアルミ
ニウム）Ａが装入される入口１ａを上端に備え、
下部に金属材料Ａを溶解するための溶解バーナ３
が複数設けられている。また、常時金属材料Ａが
略満杯レベルＨの位置まで装入され、その下部は
保持室２に向けて下り勾配の通路４を介して連通
している。 The drawing is a longitudinal sectional view of the metal melting apparatus according to this invention, in which 1 is a preheating melting chamber, 2 is a holding chamber, and the preheating melting chamber 1 has an inlet 1a into which a metal material (for example, aluminum) A is charged. at the top end,
Melting burner 3 for melting metal material A at the bottom
There are several. Further, the metal material A is always charged to a substantially full level H, and the lower part thereof communicates with the holding chamber 2 via a downwardly sloped passage 4.
保持室２は予熱溶解室１で溶解された金属溶湯
Ｂを収容保持するためのもので、溶湯Ｂの取出口
２ａを除いた上部は予熱溶解室１の耐熱周壁１Ａ
に連続する耐熱ドーム２Ａによつて覆われ、ドー
ム２Ａの下側に保持室２内の溶湯Ｂの温度を鋳造
温度（約720℃）に上昇させる昇温バーナ５が設
けられている。 The holding chamber 2 is for storing and holding the molten metal B melted in the preheating melting chamber 1, and the upper part excluding the outlet 2a for the molten metal B is the heat-resistant peripheral wall 1A of the preheating melting chamber 1.
A heating burner 5 is provided below the dome 2A to raise the temperature of the molten metal B in the holding chamber 2 to the casting temperature (approximately 720° C.).
耐熱ドーム２Ａには上方に延びる排気通路６が
設けられ、この排気通路６に開閉弁７が設けられ
ている。８は保持室２の溶湯Ｂの湯面を検出する
湯面検出器で、保持室２の満杯湯面h1を検出する
レベルセンサ８ａと、満杯湯面h1よりも若干低い
湯面h2を検出するレベルセンサ８ｂとを備え、レ
ベルセンサ８ｂが湯面h2を検出した場合に湯面検
出器８からの信号がバーナコントロール９に入力
され、バーナコントロール９からの出力信号によ
つて溶解バーナ３の開度や着火数量などがコント
ロールされる。またレベルセンサ８ａが満杯湯面
h1を検出した場合には、湯面検出器８からの信号
が開閉弁７を開く制御回路１０に入力され、制御
回路１０の制御信号でモータ１１が駆動され開閉
弁７が開位置に保持される。なお、レベルセンサ
８ａが満杯湯面h1を検出しない非満杯時には、開
閉弁７が図示する閉位置に保持される。また、昇
温バーナ５はバーナコントロール９からの出力信
号によつて保持室２内の溶湯を鋳造温度に保持す
るようにコントロールされる。 The heat-resistant dome 2A is provided with an exhaust passage 6 extending upward, and this exhaust passage 6 is provided with an on-off valve 7. 8 is a level sensor for detecting the level of molten metal B in the holding chamber 2; a level sensor 8a for detecting the full level h1 of the holding chamber 2; and a level sensor 8a for detecting the full level h1 of the holding chamber 2 ; When the level sensor 8b detects the hot water level h2 , the signal from the hot water level detector 8 is input to the burner control 9, and the output signal from the burner control 9 causes melting. The opening degree of burner 3, the amount of ignition, etc. are controlled. Also, the level sensor 8a indicates that the water level is full.
When h 1 is detected, a signal from the hot water level detector 8 is input to the control circuit 10 that opens the on-off valve 7, and the control signal from the control circuit 10 drives the motor 11 to keep the on-off valve 7 in the open position. be done. Note that when the level sensor 8a does not detect the full hot water level h1 and the hot water is not full, the on-off valve 7 is held at the closed position shown in the figure. Further, the temperature increasing burner 5 is controlled by the output signal from the burner control 9 to maintain the molten metal in the holding chamber 2 at the casting temperature.
上記構成において、予熱溶解室１の略満杯レベ
ルＨ位置まで装入されている金属材料Ａは溶解バ
ーナ３によつてその下部から急速に溶解される。
この場合、溶解帯の上部に存在する金属材料Ａは
溶解バーナ３の排ガス流（矢印Ｘ）によつて予熱
される。金属材料Ａが溶解されることで、金属材
料Ａの上面がレベルＨよりも低下するが、このレ
ベルは図示しないレベル検出器によつて検出さ
れ、これに応じて金属材料Ａが予熱溶解室１内に
補充され、略満杯レベルＨが確保される。 In the above configuration, the metal material A charged into the preheating melting chamber 1 to a substantially full level H is rapidly melted by the melting burner 3 from the lower part thereof.
In this case, the metal material A present in the upper part of the melting zone is preheated by the exhaust gas stream (arrow X) of the melting burner 3. As the metal material A is melted, the upper surface of the metal material A becomes lower than the level H, but this level is detected by a level detector (not shown), and accordingly, the metal material A is heated to the preheating melting chamber 1. It is replenished within a few minutes, and a substantially full level H is ensured.
溶解バーナ３によつて溶解された金属溶湯は通
路４を通つて保持室２に収容され（図中Ｂ参
照）、昇温バーナ５によつて加熱されることで鋳
造温度（約720℃）に昇温される。この場合、排
気通路６の開閉弁７は閉位置にあつて排気通路６
を閉塞しているから、昇温バーナ５の排ガスは矢
印Ｙで示すように予熱溶解室１を通過して溶解を
促進させるとともに、より有効に予熱を行なう。 The molten metal melted by the melting burner 3 is stored in the holding chamber 2 through the passage 4 (see B in the figure), and heated by the temperature rising burner 5 to the casting temperature (approximately 720°C). The temperature is raised. In this case, the on-off valve 7 of the exhaust passage 6 is in the closed position, and the exhaust passage 6
Since the chamber is closed, the exhaust gas from the temperature increasing burner 5 passes through the preheating melting chamber 1 as shown by the arrow Y to promote melting and perform preheating more effectively.
保持室２内の溶湯Ｂが増加し、その湯面がh2に
達すること、レベルセンサ８ｂがこれを検出し、
湯面検出器８からの信号がバーナコントロール９
に入力され、バーナコントロール９からの信号に
よつて溶解バーナ３の開度や着火数量などがコン
トロールされ、溶解量が低減される。昇温バーナ
５は保持室２内の溶湯Ｂを昇温させるために、バ
ーナコントロール９によつてコントロールされな
がら作動し続けるから、その排ガス流Ｙが予熱溶
解室１を通過することで、溶解バーナ３が停止状
態にコントロールされていても、金属材料Ａは若
干溶解されて保持室２内に導入される。したがつ
て、溶湯の取出口２ａから取出されてダイカスト
機の保温炉（図示せず）に供給される溶湯Ｂの量
が、上記昇温バーナ５の排ガス流Ｙによつて溶解
される量よりも少い場合には、保持室２内の溶湯
Ｂの湯面が満杯湯面h1に達する。 The level sensor 8b detects that the molten metal B in the holding chamber 2 increases and its level reaches h2 ,
The signal from the hot water level detector 8 is sent to the burner control 9.
The opening degree and ignition amount of the melting burner 3 are controlled by the signal from the burner control 9, and the amount of melting is reduced. The temperature raising burner 5 continues to operate under the control of the burner control 9 in order to raise the temperature of the molten metal B in the holding chamber 2, so that the exhaust gas flow Y passes through the preheating melting chamber 1, causing the melting burner to rise in temperature. Even if the metal material A is controlled to be in a stopped state, the metal material A is slightly melted and introduced into the holding chamber 2. Therefore, the amount of molten metal B taken out from the molten metal outlet 2a and supplied to the heat insulating furnace (not shown) of the die-casting machine is smaller than the amount melted by the exhaust gas flow Y of the heating burner 5. If the amount is small, the level of the molten metal B in the holding chamber 2 reaches the full level h1 .
溶湯Ｂの湯面が満杯湯面h1に達すると、レベル
センサ８ａがこれを検出し、湯面検出器８からの
信号が制御回路１０に入力され、制御回路１０の
制御信号によつてモータ１１が駆動され、開閉弁
７が開位置に保持される。したがつて、昇温バー
ナ５の排ガスは、矢印Ｚで示すように、開放され
た排気通路６を通つて大気中に排出され、予熱溶
解室１を通過しない。そのために昇温バーナ５の
排ガスによる金属材料Ａの溶解が抑止される。し
たがつて、予熱溶解室１内に装入されている金属
材料Ａを室外に取出さなくても、保持室２内の溶
湯が溢出しない。 When the level of the molten metal B reaches the full level h1 , the level sensor 8a detects this, the signal from the level detector 8 is input to the control circuit 10, and the control signal from the control circuit 10 controls the motor. 11 is driven, and the on-off valve 7 is held in the open position. Therefore, the exhaust gas from the temperature increasing burner 5 is discharged into the atmosphere through the open exhaust passage 6, as indicated by arrow Z, and does not pass through the preheating melting chamber 1. Therefore, melting of the metal material A by the exhaust gas from the temperature increasing burner 5 is suppressed. Therefore, even if the metal material A charged in the preheating melting chamber 1 is not taken out, the molten metal in the holding chamber 2 will not overflow.
（考案の効果）
以上説明したようにこの考案によれば保持室内
の溶湯の湯面が満杯に達すると、保持室上部の開
閉弁を開位置に保持して昇温バーナの排ガスを直
接大気に放出させ、予熱溶解室を通過しないよう
になされているから、昇温バーナの排ガスによる
金属材料の溶解が抑止され、保持室からの溢出が
防止できる。また、常時は、上記開閉弁が閉位置
に保持されて、昇温バーナの排ガスが予熱溶解室
を通過するようになつているので、予熱溶解室内
に装入されている金属材料の有効予熱が確保さ
れ、熱効率の向上が実現できる。(Effects of the invention) As explained above, according to this invention, when the molten metal level in the holding chamber reaches full capacity, the on-off valve at the top of the holding chamber is held in the open position to direct exhaust gas from the heating burner to the atmosphere. Since the metal material is released and does not pass through the preheating melting chamber, melting of the metal material by the exhaust gas of the heating burner is suppressed, and overflow from the holding chamber can be prevented. In addition, the on-off valve is normally held in the closed position so that the exhaust gas from the heating burner passes through the preheating melting chamber, so that the metal material charged into the preheating melting chamber can be effectively preheated. It is possible to improve thermal efficiency.
図面はこの考案に係る金属溶解装置の縦断面図
である。
１……予熱溶解室、２……保持室、３……溶解
バーナ、５……昇温バーナ、７……開閉弁、８…
…湯面検出器、１０……制御回路、Ａ……金属材
料、Ｂ……溶湯、h1……満杯湯面。
The drawing is a longitudinal sectional view of the metal melting apparatus according to this invention. DESCRIPTION OF SYMBOLS 1... Preheating melting chamber, 2... Holding chamber, 3... Melting burner, 5... Temperature raising burner, 7... Opening/closing valve, 8...
…Mold level detector, 10…Control circuit, A…Metal material, B…Molten metal, h 1 …Full hot water level.
Claims (1)
解バーナを備えた材料の予熱溶解室と、予熱溶解
室の下部に連続し溶解された金属溶湯を収容する
保持室と、保持室内の溶湯の温度を上昇させる昇
温バーナとを備えた溶解装置であつて、保持室の
昇温バーナの排ガスが予熱溶解室を通過しないよ
うに直接大気に放出させる開位置と排ガスが予熱
溶解室を通過するようにさせる閉位置とを有する
保持室上部の開閉弁と、保持室の溶湯のレベルを
検出する湯面検出器と、湯面検出器が保持室の満
杯湯面を検出したとき上記開閉弁を開く制御回路
とを設けたことを特徴とする金属溶解装置。 A material preheating melting chamber into which metal materials can be charged from the top and is equipped with a material melting burner at the bottom; a holding chamber that is continuous to the bottom of the preheating melting chamber and stores the melted metal; A melting device equipped with a heating burner for raising the temperature, the opening position in which the exhaust gas from the heating burner in the holding chamber is directly released to the atmosphere without passing through the preheating melting chamber, and the exhaust gas passing through the preheating melting chamber. an on-off valve in the upper part of the holding chamber which has a closed position, a hot water level detector that detects the level of molten metal in the holding chamber, and a hot water level detector that opens the on-off valve when the hot water level detector detects a full hot water level in the holding chamber. A metal melting device characterized by being provided with a control circuit that opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179083U JPS6050795U (en) | 1983-09-12 | 1983-09-12 | metal melting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14179083U JPS6050795U (en) | 1983-09-12 | 1983-09-12 | metal melting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6050795U JPS6050795U (en) | 1985-04-10 |
| JPS6236057Y2 true JPS6236057Y2 (en) | 1987-09-12 |
Family
ID=30317021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14179083U Granted JPS6050795U (en) | 1983-09-12 | 1983-09-12 | metal melting equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050795U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6937027B2 (en) * | 2018-04-20 | 2021-09-22 | 株式会社メイチュー | Metal melting and holding furnace |
| JP6638158B1 (en) * | 2018-10-19 | 2020-01-29 | 株式会社トウネツ | Melt holding furnace |
-
1983
- 1983-09-12 JP JP14179083U patent/JPS6050795U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6050795U (en) | 1985-04-10 |
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