JPH06344123A - Molten metal pouring trough - Google Patents

Molten metal pouring trough

Info

Publication number
JPH06344123A
JPH06344123A JP13972793A JP13972793A JPH06344123A JP H06344123 A JPH06344123 A JP H06344123A JP 13972793 A JP13972793 A JP 13972793A JP 13972793 A JP13972793 A JP 13972793A JP H06344123 A JPH06344123 A JP H06344123A
Authority
JP
Japan
Prior art keywords
chute
molten metal
cooling water
chute body
pouring trough
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.)
Pending
Application number
JP13972793A
Other languages
Japanese (ja)
Inventor
Manabu Kurotobi
学 黒飛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP13972793A priority Critical patent/JPH06344123A/en
Publication of JPH06344123A publication Critical patent/JPH06344123A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide a molten metal pouring trough preventing the molten metal from being burnt-stuck to a chute by allowing cooling water to flow on the lower surface of the chute. CONSTITUTION:The chute 11' forming a pouring hole for molten steel is constituted of a chute body 21 made of a copper plate having U-shaped cross section opened upward, a refractory member 23 made of graphites-based material having U-shaped cross section opened upward and arranged in the longitudinal direction along the upper surface of the chute body 21 and a water cooling jacket 27 through which the cooling water is allowed to flow substantially on the whole surface along the lower surface of the chute body 21. The refractory member 23 is effectively cooled with the cooling water through the chute body 21 having good thermal conductivity to keep the dropping position of the molten metal in the chute 11' at the low temp. Therefore, the molten metal can be prevented from being burnt-stuck onto the chute 11' and the erosion from being occurred, and repairing work for the burnt-sticking of the molten metal and the erosion is unnecessitated, so that the manpower can be saved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、鋳型内へ溶湯を鋳込む
ための注湯トラフに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pouring trough for casting molten metal into a mold.

【0002】[0002]

【従来の技術】たとえば鋳鉄管を遠心鋳造する場合に
は、図5に示すように回転鋳型1の内部に注湯トラフ2
を挿入し、三角取鍋3からの溶湯4を、この注湯トラフ
2を経て鋳型1内へ鋳込むのが通例である。
2. Description of the Related Art For example, when centrifugally casting a cast iron pipe, a pouring trough 2 is placed inside a rotary mold 1 as shown in FIG.
It is customary to insert the molten metal 4 from the triangular ladle 3 into the mold 1 through the pouring trough 2.

【0003】注湯トラフ2は、溶湯4が注ぎ込まれるシ
ュート11と、このシュート11へ注がれた溶湯4を前記鋳
型1内へ導くトラフ本体12と、先端のスポート13とから
構成されている。前記シュート11は、三角取鍋3からの
溶湯4を勢いをつけてトラフ本体12へ流し込むためのも
のであり、通常は鋳鋼で形成されている。
The pouring trough 2 comprises a chute 11 into which the molten metal 4 is poured, a trough body 12 for guiding the molten metal 4 poured into the chute 11 into the mold 1, and a sport 13 at the tip. . The chute 11 is for pouring the molten metal 4 from the triangular ladle 3 into the trough body 12 with a force, and is usually made of cast steel.

【0004】また、このような注湯トラフ2を用いて溶
湯4の鋳込みを行った後には、シュート11の焼付き防止
のために、シュート11に黒鉛系の塗型材を毎回ハケなど
により塗っている。また、この黒鉛系の塗型材により、
鋳造後シュート11を反転すると、余剰銑(ジャミ)など
が完全に除去される。
After the molten metal 4 has been cast using the pouring trough 2 as described above, in order to prevent the seizure of the chute 11, the chute 11 is coated with a graphite-type mold material with a brush or the like every time. There is. Also, with this graphite-based coating material,
When the chute 11 is turned over after casting, excess pig iron (jam) is completely removed.

【0005】しかし、従来の注湯トラフ2では、シュー
ト11に黒鉛系の塗型材を毎回ハケにより塗っているた
め、毎回この塗型作業に一人の作業員が必要であり、ま
た作業環境が悪いため、作業員に過酷な作業を強いると
いう問題があった。そこで、図6に示すように、鋳鋼製
のシュート11の両側上端11a、11a上に長さ方向に渡っ
てそれぞれ、シュート11の長さ方向に渡って突出する突
出部15aを有し、その横断面が鉤状の鋳鉄製の係止材15
を配設し、これら係止材15の下端15a,15aをシュート
11の外側面11b,11bに溶接し、さらに横断面を上方に
開いたU字状とした黒鉛系材料により形成された耐火部
材16を、シュート11の上面に沿って長さ方向に渡って上
記突出部15a,15a間に嵌め込む方法が検討されるよう
になってきている。
However, in the conventional pouring trough 2, since the chute 11 is coated with a graphite-based mold-coating material each time by brushing, one worker is required for this mold-coating work each time, and the working environment is poor. Therefore, there is a problem that the worker is forced to perform a severe work. Therefore, as shown in FIG. 6, on both upper ends 11a, 11a of the chute 11 made of cast steel, projecting portions 15a projecting in the longitudinal direction of the chute 11 are provided, respectively, and the traverses thereof are provided. Locking material 15 made of cast iron with hooked surface
The lower ends 15a, 15a of these locking members 15
A refractory member 16 welded to the outer side surfaces 11b, 11b of 11 and further made of a U-shaped graphite material having a cross section open upward is provided along the upper surface of the chute 11 in the length direction. A method of fitting between the protruding portions 15a, 15a has been studied.

【0006】[0006]

【発明が解決しようとする課題】しかし、この耐火部材
16を嵌め込む方法を実施しても、溶湯4の落下のため、
黒鉛系材料が赤熱して溶湯焼着が発生し、その補修に手
間を要すという問題があった。
However, this refractory member
Even if the method of fitting 16 is carried out, since the molten metal 4 falls,
There is a problem in that the graphite-based material is red-heated and molten metal sticking occurs, which requires troublesome repair.

【0007】本発明はこのような問題点を解決するもの
であり、シュートへの溶湯焼着を防止した注湯トラフを
提供することを目的とするものである。
The present invention is intended to solve such problems, and an object of the present invention is to provide a pouring trough capable of preventing molten metal seizure on a chute.

【0008】[0008]

【課題を解決するための手段】上記目的を達成するため
本発明の注湯トラフは、溶湯が注ぎ込まれるシュート
と、このシュートへ注がれた溶湯を鋳型内へ導くトラフ
本体からなる注湯トラフであって、前記シュートを、横
断面を上方に開いたU字状とし、熱伝導率の良い材料に
より形成されたシュート本体と、横断面を上方に開いた
U字状とした黒鉛系材料により形成され、前記シュート
本体の上面に沿って長さ方向に配設された耐火部材と、
前記シュート本体の下面に沿った実質全面に冷却水を流
す水冷ジャケットから構成したことを特徴とするもので
ある。
In order to achieve the above object, a pouring trough of the present invention is a pouring trough comprising a chute into which molten metal is poured and a trough body for guiding the molten metal poured into this chute into a mold. The chute has a U-shape with its cross section open upwards, and has a chute body formed of a material having good thermal conductivity, and a U-shaped graphite material with its cross section open upwards. A fire-resistant member formed along the upper surface of the chute body in the longitudinal direction,
It is characterized by comprising a water cooling jacket for flowing cooling water over substantially the entire surface along the lower surface of the chute body.

【0009】[0009]

【作用】このような構成によると、水冷ジャケットによ
りシュート本体の下面に沿った実質全面に冷却水を流す
ことによって、またシュート本体が熱伝導率の良い材料
で形成されることによって、シュート本体の上面に沿っ
て配設された耐火部材が冷却水によって効果的に冷却さ
れ、シュートの溶湯落下部は低温に保たれる。
According to this structure, the water cooling jacket allows the cooling water to flow over substantially the entire lower surface of the chute body, and the chute body is made of a material having a high thermal conductivity. The refractory member arranged along the upper surface is effectively cooled by the cooling water, and the molten metal drop portion of the chute is kept at a low temperature.

【0010】[0010]

【実施例】以下、本発明の一実施例を図面に基づいて説
明する。なお、従来例の図5の構成と同一の構成には同
一の符号を付して説明を省略する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the conventional example shown in FIG.

【0011】図1は本発明の一実施例における注湯トラ
フのシュートの斜視図、図2は図1のA−A断面図、図
3は図1のB−B断面図である。図示のように、シュー
ト本体21は、比較的薄肉で肉厚がほぼ一様であり、横断
面が上方に向けて開いたU字状で底面を平面とした銅板
を、その開口部を上方に向けてノ字状に曲げ、傾斜をつ
けて形成されており、基端側(三角取鍋3側)の横断面
を広く、先端側(トラフ本体12側)の横断面を狭くして
いる。また、このシュート本体21の外側にはシュート本
体21の長さ方向に渡って、横断面が樋状で上端が内方に
突出した突部22a、22aを有す凹形フレーム22が配設さ
れ、このフレーム22の両内側面の上部に設けた鉤状凹部
22b、22bにシュート本体21の両外側上端21a、21aを
嵌合させ、溶接されて固着されている。このフレーム22
は鋳鋼で形成されている。
FIG. 1 is a perspective view of a chute of a pouring trough in one embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. As shown in the figure, the chute main body 21 is a relatively thin-walled and substantially uniform-thickness, U-shaped copper plate whose cross section opens upward and whose bottom surface is flat. It is bent in a square shape toward the bottom and is formed with an inclination, and the cross section on the base end side (triangle ladle 3 side) is wide and the cross section on the tip side (trough body 12 side) is narrow. Further, on the outside of the chute body 21, a concave frame 22 having a projection 22a having a gutter-shaped cross section and an upper end projecting inward is provided along the length direction of the chute body 21. , Hook-shaped recesses provided on both inner side surfaces of the frame 22
Both outer upper ends 21a, 21a of the chute main body 21 are fitted to 22b, 22b and welded and fixed. This frame 22
Is made of cast steel.

【0012】また、横断面が上方に開いたU字状で底面
を平面とした黒鉛系材料により形成された耐火部材23
が、シュート本体21の上面に沿って長さ方向に配置さ
れ、その上端23a,23aが、フレーム22の突部22a、22
aに設けられたネジ孔22cにセットされたボルト24によ
り、当板25を介して下方に押され、よって耐火部材23は
シュート本体21に密着して係止されている。
The refractory member 23 is made of a graphite material having a U-shaped cross section open upward and a flat bottom surface.
Are arranged in the length direction along the upper surface of the chute main body 21, and the upper ends 23a, 23a thereof are the protrusions 22a, 22 of the frame 22.
The bolt 24 set in the screw hole 22c provided in a is pushed downward through the contact plate 25, so that the fire-resistant member 23 is closely attached to the chute body 21 and locked.

【0013】また、フレーム22とシュート本体21の基端
側と先端側はそれぞれ鉄板で形成された板材26が溶接さ
れて密閉され、これにより、シュート本体21の外側に水
冷ジャケット27が形成されている。
A plate member 26 made of an iron plate is welded and hermetically sealed to the base end side and the tip end side of the frame 22 and the chute body 21, respectively, whereby a water cooling jacket 27 is formed on the outside of the chute body 21. There is.

【0014】また、この水冷ジャケット27には、シュー
ト本体21の基端側に冷却水の排出口28が形成され、さら
に銅製の冷却水供給管29が挿入されている。この冷却水
供給管29は水冷ジャケット27の内部をシュート本体21の
長さ方向に延び、このシュート本体21の先端側で開口し
ている。本発明の注湯トラフのシュート11’は、上記シ
ュート本体21と、耐火部材23と、耐火部材23をシュート
本体21に係止する部材(ボルト24,当板25など)と、水
冷ジャケット27から構成されている。
A cooling water discharge port 28 is formed in the water cooling jacket 27 on the base end side of the chute body 21, and a cooling water supply pipe 29 made of copper is inserted therein. The cooling water supply pipe 29 extends inside the water cooling jacket 27 in the longitudinal direction of the chute body 21, and opens at the tip side of the chute body 21. The chute 11 ′ of the pouring trough of the present invention comprises a chute body 21, a fireproof member 23, a member for locking the fireproof member 23 to the chute body 21 (bolts 24, contact plates 25, etc.), and a water cooling jacket 27. It is configured.

【0015】このような構成において、冷却水供給管29
に冷却水を流すと、この冷却水は冷却水供給管29の内部
をシュート本体21の先端側に向けて流れ、先端の開口部
から水冷ジャケット27の内部に出水される。そして、冷
却水供給管29の外部における水冷ジャケット27の内部を
シュート本体21の基端側に向けて流れ、その際シュート
本体21を冷却することになる。そして、排出口26から系
外に排出される。なお、冷却水の流れが滞って水温が異
常高温になると、異常水温警報装置(図示せず)にて警
報が発せられるようにしており、異常水温に直ちに対処
できる。
In such a structure, the cooling water supply pipe 29
When the cooling water is flown into the cooling water supply pipe 29, the cooling water flows through the inside of the cooling water supply pipe 29 toward the tip side of the chute body 21, and is discharged into the water cooling jacket 27 through the opening at the tip. Then, the inside of the water cooling jacket 27 outside the cooling water supply pipe 29 flows toward the base end side of the chute body 21, and at that time, the chute body 21 is cooled. Then, it is discharged from the discharge port 26 to the outside of the system. When the flow of cooling water is stagnant and the water temperature becomes abnormally high, an alarm is issued by an abnormal water temperature alarm device (not shown) so that the abnormal water temperature can be dealt with immediately.

【0016】このように鋳込み中およびその後に、冷却
水によってシュート本体21が全長にわたり冷却され、ま
たシュート本体21が熱伝導率の良い銅板で形成されてい
るため、シュート本体21の上面に沿って配設された耐火
部材23は冷却水によって効果的に冷却され、シュート1
1’が良好に冷却されて溶湯落下部は低温に保たれる。
また相対的に溶湯との接触時間が長いことから高温にな
りやすいシュート11’の先端部に低温の冷却水を供給で
き、先端部が効果的に冷却される。
In this way, during and after casting, the chute body 21 is cooled by the cooling water over the entire length, and since the chute body 21 is formed of a copper plate having good thermal conductivity, the chute body 21 runs along the upper surface of the chute body 21. The arranged fireproof member 23 is effectively cooled by the cooling water, and the chute 1
1'is cooled well and the molten metal falling part is kept at a low temperature.
Further, since the contact time with the molten metal is relatively long, low temperature cooling water can be supplied to the tip portion of the chute 11 ′ that is likely to reach a high temperature, and the tip portion is effectively cooled.

【0017】このため、シュート11’の溶湯による反り
などの形状の歪みを抑制することができるとともに、シ
ュート11’の耐火部材23が赤熱することを防止でき、よ
って溶湯焼着、溶損の発生を防止できる。また、従来の
ような溶湯焼着、溶損の補修作業が不要となり、省力化
を図ることができる。
Therefore, the distortion of the shape such as the warp caused by the molten metal of the chute 11 'can be suppressed, and the refractory member 23 of the chute 11' can be prevented from becoming red-heated. Can be prevented. In addition, it is possible to save labor because it is not necessary to perform the work of welding the molten metal and repairing the melting loss as in the past.

【0018】また、耐火部材23が経年変化により劣化し
た際も、耐火部材23はボルト24により、シュート本体21
上に係止されているだけであるため、容易に取換えるこ
とができる。また取換えの際に、黒鉛粉などをシュート
本体21、あるいは耐火材料23の対向面に擦り込むことに
よって、シュート本体21と耐火部材23の密着性を増すこ
とができる。また、シュート本体21、および耐火材料23
の底面を平面としたことにより、シュート本体21と耐火
部材23の密着性を確保することができ、さらに耐火材料
23ではその加工を容易にすることができる。
Even when the fireproof member 23 is deteriorated due to secular change, the fireproof member 23 is fixed by the bolt 24 to the chute body 21.
It is easy to replace because it is only locked on top. Further, at the time of replacement, the adhesion between the chute body 21 and the refractory member 23 can be increased by rubbing graphite powder or the like against the facing surface of the chute body 21 or the refractory material 23. In addition, the chute body 21 and the refractory material 23
By making the bottom surface of the flat surface, it is possible to ensure the adhesion between the chute body 21 and the fire-resistant member 23.
With 23, the processing can be facilitated.

【0019】なお、本実施例では、耐火材料23を一体型
の黒鉛系材料を加工して形成しているが、一体型の黒鉛
系材料の入手が難しいときは、図4に示すように、3分
割した各パーツをそれぞれ黒鉛系材料で形成し、これら
を継ぎ合わせることにより耐火材料23’を形成してもよ
い。
In this embodiment, the refractory material 23 is formed by processing an integral type graphite material. However, when it is difficult to obtain the integral type graphite material, as shown in FIG. The refractory material 23 ′ may be formed by forming each of the three divided parts from a graphite material and joining them together.

【0020】また、本実施例では、シュート本体21に銅
板を使用しているが、他の熱伝導率の良い材料により形
成することもできる。また、耐火部材23をボルト24と当
板25を使用してシュート本体21に係止しているが、従来
と同様に、フレーム22の両側上端22a、22a間に耐火材
料23を嵌め込むようにしてもよく、またフレーム22の両
側上端22a、22a上にフレーム22の長さ方向に渡って、
その一部がフレーム22の長さ方向に渡って突出し、横断
面が鉤状の鋳鉄製の係止材を配設し、耐火部材23を、係
止材の突出部間に嵌め込むようにしてもよい。
In this embodiment, the chute body 21 is made of a copper plate, but it may be made of another material having a high thermal conductivity. Further, although the fireproof member 23 is locked to the chute body 21 using the bolt 24 and the contact plate 25, the fireproof material 23 may be fitted between the upper ends 22a, 22a on both sides of the frame 22 as in the conventional case. Well, on both upper ends 22a, 22a of the frame 22 over the length direction of the frame 22,
A part thereof may protrude along the length direction of the frame 22, and a locking member made of cast iron having a hook-shaped cross section may be disposed, and the fireproof member 23 may be fitted between the protruding portions of the locking member. .

【0021】[0021]

【発明の効果】以上述べたように本発明によると、水冷
ジャケットによりシュート本体の下面に沿った実質全面
に冷却水を流すことによって、またシュート本体が熱伝
導率の良い材料で形成されることによって、シュート本
体の上面に沿って配設された耐火部材を冷却水によって
効果的に冷却することができ、シュートを低温に保つこ
とができる。よって、シュートの耐火部材への溶湯の焼
着、溶損の発生を抑制することができ、従来のような溶
湯の焼着、溶損の補修作業が不要となり、省力化を図る
ことができる。
As described above, according to the present invention, cooling water is made to flow over substantially the entire lower surface of the chute body by the water cooling jacket, and the chute body is made of a material having a high thermal conductivity. The refractory member arranged along the upper surface of the chute body can be effectively cooled by the cooling water, and the chute can be kept at a low temperature. Therefore, it is possible to suppress the seizure of the molten metal on the refractory member of the chute and the occurrence of the melting loss, and it becomes unnecessary to perform the welding work of the molten metal and the repairing work of the melting loss as in the conventional case, and it is possible to save labor.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例における注湯トラフのシュー
トの斜視図である。
FIG. 1 is a perspective view of a chute of a pouring trough according to an embodiment of the present invention.

【図2】図1のA−A断面図である。FIG. 2 is a sectional view taken along line AA of FIG.

【図3】図1のB−B断面図である。FIG. 3 is a sectional view taken along line BB of FIG.

【図4】本発明の他の実施例における注湯トラフのシュ
ートの耐火部材の断面図である。
FIG. 4 is a sectional view of a refractory member of a chute of a pouring trough in another embodiment of the present invention.

【図5】従来の注湯トラフの使用状態を説明する図であ
る。
FIG. 5 is a diagram illustrating a usage state of a conventional pouring trough.

【図6】従来の注湯トラフのシュートの断面図である。FIG. 6 is a sectional view of a chute of a conventional pouring trough.

【符号の説明】[Explanation of symbols]

1 鋳型 2 注湯トラフ 3 三角取鍋 4 溶湯 11’ シュート 12 トラフ本体 21 シュート本体 22 フレーム 23 耐火部材 24 ボルト 25 当板 26 板材 27 水冷ジャケット 28 排水口 29 冷却水供給管 1 mold 2 pouring trough 3 triangular ladle 4 molten metal 11 'chute 12 trough body 21 chute body 22 frame 23 fireproof member 24 bolt 25 current plate 26 plate material 27 water cooling jacket 28 drain port 29 cooling water supply pipe

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 溶湯が注ぎ込まれるシュートと、このシ
ュートへ注がれた溶湯を鋳型内へ導くトラフ本体からな
る注湯トラフであって、 前記シュートを、横断面を上方に開いたU字状とし、熱
伝導率の良い材料により形成されたシュート本体と、横
断面を上方に開いたU字状とした黒鉛系材料により形成
され、前記シュート本体の上面に沿って長さ方向に配設
された耐火部材と、前記シュート本体の下面に沿った実
質全面に冷却水を流す水冷ジャケットから構成したこと
を特徴とする注湯トラフ。
1. A pouring trough comprising a chute into which molten metal is poured and a trough body for guiding the molten metal poured into the chute into a mold, wherein the chute has a U-shaped cross section open upward. And a chute body made of a material having a high thermal conductivity, and a U-shaped graphite material having a cross section open upward, and arranged in the longitudinal direction along the upper surface of the chute body. A pouring trough comprising a refractory member and a water cooling jacket for flowing cooling water substantially over the entire lower surface of the chute body.
JP13972793A 1993-06-11 1993-06-11 Molten metal pouring trough Pending JPH06344123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13972793A JPH06344123A (en) 1993-06-11 1993-06-11 Molten metal pouring trough

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13972793A JPH06344123A (en) 1993-06-11 1993-06-11 Molten metal pouring trough

Publications (1)

Publication Number Publication Date
JPH06344123A true JPH06344123A (en) 1994-12-20

Family

ID=15251989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13972793A Pending JPH06344123A (en) 1993-06-11 1993-06-11 Molten metal pouring trough

Country Status (1)

Country Link
JP (1) JPH06344123A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014206303A (en) * 2013-04-11 2014-10-30 住友金属鉱山株式会社 Gutter unit for metal molten material
JP2015183201A (en) * 2014-03-20 2015-10-22 株式会社日向製錬所 Slag trough for ferronickel smelting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014206303A (en) * 2013-04-11 2014-10-30 住友金属鉱山株式会社 Gutter unit for metal molten material
JP2015183201A (en) * 2014-03-20 2015-10-22 株式会社日向製錬所 Slag trough for ferronickel smelting

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