JPH0542371A - Slag collecting device for steel pipe outside welding line - Google Patents
Slag collecting device for steel pipe outside welding lineInfo
- Publication number
- JPH0542371A JPH0542371A JP19923191A JP19923191A JPH0542371A JP H0542371 A JPH0542371 A JP H0542371A JP 19923191 A JP19923191 A JP 19923191A JP 19923191 A JP19923191 A JP 19923191A JP H0542371 A JPH0542371 A JP H0542371A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- steel pipe
- chute
- welding line
- panel
- 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.)
- Granted
Links
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼管外面溶接ラインに
おいて鋼管の外面溶接時に発生するスラグを回収する装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for recovering slag generated during the outer surface welding of a steel pipe in a steel pipe outer surface welding line.
【０００２】[0002]
【従来の技術】ＵＯ鋼管等の鋼管外面溶接時に発生する
スラグを回収する装置として、生成されるスラグが剥離
しやすくなる位置に、ブラシロール、タッチロール、ス
ラグ押えロール、スラグガイドを備えた昇降式スラグ剥
離装置を配置し、スラグ落下位置にスラグ回収用シュー
トとスラグ搬送コンベヤーを配設した装置が知られてお
り（特開昭６２−２２０２８６号公報）、また、溶接ス
ラグ冷却用空気ノズルと、この空気ノズルに隣接して設
けられたスラグ押圧ロールと、スラグ押圧ロールに隣接
して設けられたスラグ吸引管とを設けた溶接スラグの回
収装置も公知である（実開昭６３−９５６７５号公
報）。2. Description of the Related Art As a device for recovering slag generated when welding the outer surface of a UO steel pipe or the like, a brush roll, a touch roll, a slag pressing roll and a slag guide are provided at a position where the generated slag is easily separated. There is known an apparatus in which a slag separating device is arranged, and a chute for collecting slag and a slag conveying conveyor are arranged at a slag dropping position (Japanese Patent Laid-Open No. 62-220286) and an air nozzle for cooling a welding slag. A welding slag recovery device provided with a slag pressing roll provided adjacent to the air nozzle and a slag suction pipe provided adjacent to the slag pressing roll is also known (Japanese Utility Model Publication No. 63-95675). Bulletin).
【０００３】[0003]
【発明が解決しようとする課題】前記従来技術では、以
下のような解決すべき課題があった。 （１）特開昭６２−２２０２８６号公報の技術 ブラシロールによって直接スラグの剥離を行うため、溶
接ビードに疵をつけるという品質欠陥の原因となるほ
か、スラグが周囲に飛散して環境を汚染し、スラグの回
収率も低い。 （２）実開昭６３−９５６７５号公報の技術 多種類の鋼管に対し、それぞれ吸引面積、吸引力を有し
たノズルを設定する必要があり、多品種の鋼管溶接ライ
ンには不向である。また、押圧ロ−ルによりスラグを剥
離させるので鋼管の両側にスラグが落下し、スラグの回
収率も低い。The above-mentioned conventional techniques have the following problems to be solved. (1) Technology of JP-A-62-220286 Since the slag is directly peeled off by a brush roll, it causes a quality defect such as a flaw on the weld bead, and the slag scatters around and pollutes the environment. The recovery rate of slag is also low. (2) Technology of Japanese Utility Model Laid-Open No. 63-95675 It is necessary to set a nozzle having a suction area and a suction force for each of various types of steel pipes, which is not suitable for various types of steel pipe welding lines. Further, since the slag is peeled off by the pressing roll, the slag drops on both sides of the steel pipe and the slag recovery rate is low.
【０００４】さらに前記従来技術ではスラグの飛散や落
下が生じるので、これを回収するために回収ボックスを
設置することも考えられるが、比較的大きなものが必要
であり、また、鋼管に精度よく接することが難しく鋼管
表面に疵をつけるという心配もある。Further, in the above-mentioned prior art, since the slag is scattered or dropped, it may be possible to install a recovery box for recovering the slag, but a relatively large one is required and the steel pipe is brought into contact with the steel pipe with high accuracy. It is difficult to do so, and there is a concern that the surface of the steel pipe will be damaged.
【０００５】[0005]
【課題を解決するための手段】本発明は前記従来技術の
問題点を有利に解決するためになされたものであって、 （１）被溶接鋼管を載置して移送する台車の上方に、上
流側からフラックス供給口、溶接電極、フラックス回収
口を配置してなる鋼管外面溶接ラインにおいて、該フラ
ックス回収口に隣接してその下流側に複数個のエアーノ
ズルを横向きに並設して構成したスラグ剥離装置を設
け、該スラグ剥離装置と対向する鋼管外面溶接ライン側
方に一対のパネル状シュートを有するベルトコンベアを
設け、該パネル状シュートの内側のシュートを傾動可能
な可動シュートとしたことを特徴とする鋼管外面溶接ラ
インにおけるスラグ回収装置。 （２）スラグ剥離装置は、上流側および下流側のエアー
ノズル群で構成され、個々のエアーノズルの先端は偏平
形である前記１記載の装置。 （３）個々のエアーノズルは、同一のパイプに回動可能
に固定されており、上流側および下流側ノズル群とも群
内のエアーノズルは上流側で小さく、下流側になる程大
きくしてある前記２記載の装置。 （４）可動シュートは、その上部に緩衝板が設けられ、
長さ方向中央部には複数個のパワーシリンダーが係合さ
れている前記１記載の装置を要旨とするものである。The present invention has been made in order to advantageously solve the above-mentioned problems of the prior art. (1) Above a carriage for mounting and transferring a steel pipe to be welded, In a steel pipe outer surface welding line in which a flux supply port, a welding electrode, and a flux recovery port are arranged from the upstream side, a plurality of air nozzles are horizontally arranged side by side adjacent to the flux recovery port on the downstream side. A slag stripping device is provided, and a belt conveyor having a pair of panel-shaped chutes is provided on the side of the steel pipe outer surface welding line facing the slag stripping device, and a chute inside the panel-shaped chute is a tiltable movable chute. A slag recovery device for steel pipe outer surface welding lines. (2) The device according to the above 1, wherein the slag stripping device is composed of upstream and downstream air nozzle groups, and the tip of each air nozzle is flat. (3) The individual air nozzles are rotatably fixed to the same pipe, and the air nozzles in the upstream and downstream nozzle groups are smaller on the upstream side and larger on the downstream side. The apparatus according to 2 above. (4) The movable chute is provided with a buffer plate on its upper part,
The gist of the device is the device described in the above item 1, in which a plurality of power cylinders are engaged in the central portion in the length direction.
【０００６】[0006]
【作用】鋼管外面溶接ラインにて被溶接鋼管１のサブマ
ージアーク溶接を行う際発生するスラグ１５に対し、ス
ラグ剥離装置７のエアーノズル５Ａ，５Ｂから圧縮空気
を吹き付けて片側から冷却すると、スラグ１５は左右両
側で収縮時間差が生じ、冷却を行った側から剥離が始ま
る。剥離が始まったスラグに対し、下流側のエアーノズ
ル５Ｃ，５Ｄから更に圧縮空気を吹き付けて剥離したス
ラグ１５Ａを鋼管側方へ移送する。スラグ１５Ａ，１５
Ａ……が移送されるライン側方にはパネル状シュート８
Ａ，８Ｂを有するベルトコンベア９を設けてあるから該
スラグ１５Ａはベルトコンベア９内に落下してベルトコ
ンベア９により次工程へ搬送される。パネル状シュート
８Ａ，８Ｂは、内側のシュート８Ａを被溶接鋼管１の外
径に応じてパワーシリンダー１１により精度よく傾動さ
せることができ、また、上部に緩衝板１０を設けてある
からシュート８Ａの上部が鋼管１の側部に当接しても疵
を発生させることはない。The slag 15 is produced by blowing compressed air from the air nozzles 5A and 5B of the slag stripping device 7 onto the slag 15 generated when the submerged arc welding of the steel pipe 1 to be welded is performed on the steel pipe outer surface welding line, and cooling from one side. A difference in contraction time occurs on both the left and right sides, and peeling starts from the side that has been cooled. Compressed air is further blown from the downstream air nozzles 5C and 5D to the slag that has started to be peeled off, and the slag 15A that has been peeled off is transferred to the side of the steel pipe. Slag 15A, 15
Panel chute 8 is located on the side of the line where A ... is transferred.
Since the belt conveyor 9 having A and 8B is provided, the slag 15A falls into the belt conveyor 9 and is conveyed to the next step by the belt conveyor 9. The panel-shaped chutes 8A and 8B can accurately tilt the inner chute 8A by the power cylinder 11 according to the outer diameter of the steel pipe 1 to be welded, and since the buffer plate 10 is provided on the upper part of the chute 8A. Even if the upper part comes into contact with the side part of the steel pipe 1, no flaw is generated.
【０００７】スラグ剥離装置７を、上流側と下流側の２
つのノズル群７Ａ，７Ｂで構成するのは、スラグ１５の
剥離および移送を効率よく行う上で有効である。この場
合、個々のエアーノズル５Ａ〜５Ｄ，５Ｅ〜５Ｈをそれ
ぞれ角度を異にして配置するのが望ましい。The slag stripping device 7 is provided on the upstream side and the downstream side.
Constituting one nozzle group 7A, 7B is effective in efficiently separating and transferring the slag 15. In this case, it is desirable to arrange the individual air nozzles 5A to 5D and 5E to 5H at different angles.
【０００８】[0008]
【実施例】以下図面に基づき本発明の実施例を説明す
る。図１は本発明を例示する斜視図であり、図２は本発
明に係るスラグ剥離装置を例示する斜視図である。本発
明は、図１および図２に示すように、被溶接鋼管１を載
置してレール上を移動する台車（図示せず）の上方に、
上流側からフラックス供給口２、溶接電極３、フラック
ス回収口４を配置してなる鋼管外面溶接ラインにおい
て、フラックス回収口４に隣接してその下流側に複数個
のエアーノズル５Ａ〜５Ｄを溶接ビード６へ向けて横向
きに並設して構成したスラグ剥離装置７を設け、このス
ラグ剥離装置７と対向する鋼管外面溶接ライン側方に一
対のパネル状シュート８Ａ，８Ｂを有するベルトコンベ
ア９を設け、内側のパネル状シュート８Ａを傾動可能な
可動シュートとしたことを特徴とする。Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view illustrating the present invention, and FIG. 2 is a perspective view illustrating a slag removing device according to the present invention. The present invention, as shown in FIG. 1 and FIG. 2, has a steel pipe 1 to be welded placed above a carriage (not shown) that moves on a rail.
In a steel pipe outer surface welding line in which a flux supply port 2, a welding electrode 3, and a flux recovery port 4 are arranged from the upstream side, a plurality of air nozzles 5A to 5D are welded to the downstream side of the flux recovery port 4 adjacent to the flux recovery port 4. 6, a slag stripping device 7 is provided side by side horizontally, and a belt conveyor 9 having a pair of panel-shaped chutes 8A, 8B is provided on the side of the steel pipe outer surface welding line facing the slag stripping device 7, The inner chute 8A is a movable chute capable of tilting.
【０００９】図２に示すようにスラグ剥離装置７を上流
側ノズル群７Ａおよび下流側ノズル群７Ｂの２群で構成
し、個々のエアーノズル５Ａ〜５Ｄ，５Ｅ〜５Ｈの先端
を偏平形とするのは有効である。また、個々のエアーノ
ズル５Ａ〜５Ｈを同一のパイプ１６に回動可能に固定
し、上流側および下流側ノズル群７Ａ，７Ｂとも、群内
のエアーノズルは上流側のものを小容量とし、下流側の
もの程大容量のものを配置するのはスラグの冷却および
移送をスムーズに行う上で有利である。また、内側のシ
ュート８Ａは、その上部に耐摩耗性ゴムや柔軟性のある
樹脂などで製作した緩衝板１０を有すること、およびそ
の傾動を複数のパワーシリンダー（ネジ式シリンダー）
１１により行うようにするのは有効である。図中１２は
シュート８Ａの回動軸、１３はシリンダー用のモータ
ー、１４は動力伝達用軸、１７はバルブ、１８は圧縮空
気を示す。As shown in FIG. 2, the slag stripping device 7 is composed of two groups, an upstream side nozzle group 7A and a downstream side nozzle group 7B, and the tips of the individual air nozzles 5A to 5D and 5E to 5H are flat. Is effective. Further, each of the air nozzles 5A to 5H is rotatably fixed to the same pipe 16, and both the upstream and downstream nozzle groups 7A and 7B have a small capacity for the upstream nozzle, and the downstream nozzle has a small capacity. It is advantageous to arrange the one having the larger capacity on the side of the side in order to smoothly cool and transfer the slag. Further, the inner chute 8A has a buffer plate 10 made of wear-resistant rubber or flexible resin on the upper part thereof, and its tilting is performed by a plurality of power cylinders (screw type cylinders).
11 is effective. In the figure, 12 is a rotation shaft of the chute 8A, 13 is a cylinder motor, 14 is a power transmission shaft, 17 is a valve, and 18 is compressed air.
【００１０】[0010]
【発明の効果】以上述べたように本発明によれば、鋼管
外面溶接ラインにおける溶接ビード部のスラグ剥離およ
び剥離後のスラグ回収を効率的に行うことが可能とな
り、スラグ回収率が従来２０％程度であったものが１０
０％近い回収率となり、フラックス原単位を著しく向上
させることができた。また、フラックスのこぼれ落ちが
なくなったことにより作業環境が改善され、人手による
フラックス回収作業も解消することができた。As described above, according to the present invention, it becomes possible to efficiently separate the slag from the weld bead portion in the steel pipe outer surface welding line and to recover the slag after the separation, and the slag recovery rate is 20% in the past. It was about 10
The recovery rate was close to 0%, and the flux basic unit could be significantly improved. In addition, the work environment was improved by eliminating flux spillage, and manual flux recovery work could be eliminated.
【図１】本発明を例示する斜視図。FIG. 1 is a perspective view illustrating the present invention.
【図２】本発明に係るスラグ剥離装置を例示する斜視
図。FIG. 2 is a perspective view illustrating a slag removing device according to the present invention.
１ 被溶接鋼管 ２ フラックス供給
口 ３ 溶接電極 ４ フラックス回収
口 ５Ａ〜５Ｈ エアーノズル ６ 溶接ビード ７ スラグ剥離装置 ７Ａ，７Ｂ ノズル
群 ８Ａ，８Ｂ パネル状シュート ９ ベルトコンベア １０ 緩衝板 １１ パワーシリン
ダー １５，１５Ａ スラグ １６ パイプ1 Steel pipe to be welded 2 Flux supply port 3 Welding electrode 4 Flux recovery port 5A to 5H Air nozzle 6 Weld bead 7 Slag stripping device 7A, 7B Nozzle group 8A, 8B Panel chute 9 Belt conveyor 10 Buffer plate 11 Power cylinder 15, 15A Slag 16 pipe
Claims (4)
方に、上流側からフラックス供給口、溶接電極、フラッ
クス回収口を配置してなる鋼管外面溶接ラインにおい
て、該フラックス回収口に隣接してその下流側に複数個
のエアーノズルを横向きに並設して構成したスラグ剥離
装置を設け、該スラグ剥離装置と対向する鋼管外面溶接
ライン側方に一対のパネル状シュートを有するベルトコ
ンベアを設け、該パネル状シュートの内側のシュートを
傾動可能な可動シュートとしたことを特徴とする鋼管外
面溶接ラインにおけるスラグ回収装置。1. A steel pipe outer surface welding line comprising a flux supply port, a welding electrode, and a flux recovery port arranged from the upstream side above a trolley on which a steel pipe to be welded is placed and transferred, and adjacent to the flux recovery port. Then, a slag stripping device configured by laterally arranging a plurality of air nozzles on the downstream side is provided, and a belt conveyor having a pair of panel-shaped chutes on the side of the steel pipe outer surface welding line facing the slag stripping device is provided. A slag collecting device in a steel pipe outer surface welding line, wherein the inner chute of the panel-shaped chute is a movable chute capable of tilting.
のエアーノズル群で構成され、個々のエアーノズルの先
端は偏平形である請求項１記載の装置。2. The device according to claim 1, wherein the slag stripping device is composed of upstream and downstream air nozzle groups, and the tip of each air nozzle is flat.
回動可能に固定されており、上流側および下流側ノズル
群とも群内のエアーノズルは上流側で小さく、下流側に
なる程大きくしてある請求項２記載の装置。3. The individual air nozzles are rotatably fixed to the same pipe, and the air nozzles in both upstream and downstream nozzle groups are smaller on the upstream side and larger on the downstream side. The device according to claim 2, wherein
けられ、長さ方向中央部には複数個のパワーシリンダー
が係合されている請求項１記載の装置。4. The apparatus according to claim 1, wherein the movable chute is provided with a buffer plate on an upper portion thereof, and a plurality of power cylinders are engaged with the central portion in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199231A JP2533252B2 (en) | 1991-08-08 | 1991-08-08 | Slag recovery device for steel pipe outer surface welding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199231A JP2533252B2 (en) | 1991-08-08 | 1991-08-08 | Slag recovery device for steel pipe outer surface welding line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0542371A true JPH0542371A (en) | 1993-02-23 |
| JP2533252B2 JP2533252B2 (en) | 1996-09-11 |
Family
ID=16404339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3199231A Expired - Lifetime JP2533252B2 (en) | 1991-08-08 | 1991-08-08 | Slag recovery device for steel pipe outer surface welding line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2533252B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962625A (en) * | 2012-11-23 | 2013-03-13 | 保定天威集团有限公司 | Method for removing slag in submerged arc welding of thick steel plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220286A (en) * | 1986-03-19 | 1987-09-28 | Nippon Steel Corp | Collecting device for steel pipe outside weld slag |
| JPS632562A (en) * | 1986-06-20 | 1988-01-07 | Tanaka Seisakusho:Kk | Plasma cutting method |
-
1991
- 1991-08-08 JP JP3199231A patent/JP2533252B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220286A (en) * | 1986-03-19 | 1987-09-28 | Nippon Steel Corp | Collecting device for steel pipe outside weld slag |
| JPS632562A (en) * | 1986-06-20 | 1988-01-07 | Tanaka Seisakusho:Kk | Plasma cutting method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962625A (en) * | 2012-11-23 | 2013-03-13 | 保定天威集团有限公司 | Method for removing slag in submerged arc welding of thick steel plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2533252B2 (en) | 1996-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960507 |