JPH0318499Y2 - - Google Patents
Info
- Publication number
- JPH0318499Y2 JPH0318499Y2 JP13366987U JP13366987U JPH0318499Y2 JP H0318499 Y2 JPH0318499 Y2 JP H0318499Y2 JP 13366987 U JP13366987 U JP 13366987U JP 13366987 U JP13366987 U JP 13366987U JP H0318499 Y2 JPH0318499 Y2 JP H0318499Y2
- Authority
- JP
- Japan
- Prior art keywords
- dross
- injection
- molten
- molten metal
- plating tank
- 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
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 8
- 238000007747 plating Methods 0.000 description 34
- 239000011701 zinc Substances 0.000 description 22
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 20
- 229910052725 zinc Inorganic materials 0.000 description 20
- 239000007788 liquid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910007570 Zn-Al Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Coating With Molten Metal (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〕
本考案は、連続溶融メツキラインのメツキ槽内
に溶融亜鉛を補給注入する際のように、溶融金属
を容器に注入するときに発生するドロスが受湯側
容器内に拡散することを防止し、効率的な回収を
可能にしたドロス回収装置に関する。[Detailed description of the invention] [Industrial application field] The present invention solves the problem of dross generated when pouring molten metal into a container, such as when replenishing molten zinc into the plating tank of a continuous melt plating line. The present invention relates to a dross recovery device that prevents dross from dispersing into a container on the receiving side and enables efficient recovery.
連続溶融メツキラインにおいて、たとえばZn
−Al合金メツキからZnメツキのような異種金属
のメツキに切り換える際、メツキ槽内から所定量
の溶融Zn−Al合金を汲み上げ、次に純亜鉛をメ
ツキ槽内に投入することにより、メツキ浴中の
Al濃度を下げている。このとき、メツキ浴の温
度変動を小さく抑えるため、溶融Zn−Al浴とほ
ぼ同等の温度に維持された溶融状態で純亜鉛が注
入される。
In a continuous melt plating line, for example, Zn
- When switching from Al alloy plating to dissimilar metal plating such as Zn plating, a predetermined amount of molten Zn-Al alloy is pumped up from the plating tank, and then pure zinc is poured into the plating tank. of
Lowering Al concentration. At this time, in order to suppress temperature fluctuations in the plating bath, pure zinc is injected in a molten state maintained at approximately the same temperature as the molten Zn-Al bath.
しかし、予め溶融した純亜鉛をメツキ槽に注入
する際、注入時に発生するドロスがメツキ槽内に
配置された機器等の下に潜り込み、鋼帯等の被メ
ツキ材の表面に付着して品質低下の原因となつて
いる。そこで、注入完了後、メツキ浴に分散した
ドロスが液面に浮上するのをまつて、表面に浮遊
したドロスを杓等によつて汲み出している。ま
た、特公昭59−2727号公報、実開昭59−54561号
公報等において各種のドロス除去装置が提案され
ている。 However, when pre-molten pure zinc is injected into a plating tank, the dross generated during injection gets under the equipment placed in the plating tank and adheres to the surface of the material to be plated, such as steel strip, resulting in quality deterioration. It is the cause of Therefore, after the injection is completed, the dross dispersed in the plating bath is waited for to float to the surface of the liquid, and then the dross floating on the surface is scooped out using a ladle or the like. Furthermore, various dross removal devices have been proposed in Japanese Patent Publication No. 59-2727, Japanese Utility Model Application Publication No. 59-54561, and the like.
しかし、従来の方法によるとき、ドロスの除去
に長時間を要し、しかもドロス除去、特にメツキ
浴内部に分散したドロスの除去が完全に行われな
い。そのため、依然としてメツキされた製品にド
ロスの咬込みや付着等の表面欠陥が発生する。ま
た、注入完了後はメツキ槽に収容された溶融亜鉛
浴の液面全体にドロスが拡散するため、液面に浮
遊するドロスが薄くなり、ドロスのみを効率良く
除去することが困難となつていた。
However, when using the conventional method, it takes a long time to remove the dross, and moreover, the dross removal, especially the dross dispersed inside the plating bath, is not completely removed. Therefore, surface defects such as dross bite and adhesion still occur on plated products. Additionally, after the injection is completed, the dross spreads over the entire liquid surface of the molten zinc bath housed in the plating tank, making the dross floating on the liquid surface thinner, making it difficult to efficiently remove just the dross. .
また、このようなドロスに起因する問題は、メ
ツキ槽に溶融亜鉛を注入する場合に限らず、溶融
アルミニウム、溶融鉛、溶融錫あるいはこれらの
溶融合金等のように酸化されやすい溶融金属を容
器に注入する際に共通するものである。 In addition, problems caused by such dross are not limited to when pouring molten zinc into a plating tank, but also when pouring molten metals that are easily oxidized, such as molten aluminum, molten lead, molten tin, or their molten alloys, into a container. This is common when injecting.
そこで、本考案は、このような問題を解消すべ
く案出されたものであり、受湯側容器の溶融金属
浴全体にドロスが拡散することを防止し、且つ限
定された区域の液面に浮遊するドロスを効率良く
且つ簡単に除去することを目的とする。 Therefore, the present invention was devised to solve these problems, and it prevents the dross from spreading throughout the molten metal bath in the receiving vessel, and also prevents the dross from spreading to the liquid surface in a limited area. The purpose is to efficiently and easily remove floating dross.
本考案のドロス回収装置は、その目的を達成す
るため、注入側容器から注入シユートを介して受
湯側容器に溶融金属を注入する溶融金属注入装置
において、前記注入シユートの外周を取り囲んで
凾体を配置し、前記受湯側容器の側壁に近い前記
凾体の側壁に複数の溶融金属流出用孔部を設け、
反対側の前記凾体の側壁を無孔の板状とし、前記
凾体の底部に開蓋可能な底板を取り付け、且つ前
記凾体の上部に吊り環を設けたことを特徴とす
る。
In order to achieve the purpose, the dross recovery device of the present invention is a molten metal injection device that injects molten metal from an injection side container to a receiving side container via an injection chute, and includes a housing that surrounds the outer periphery of the injection chute. and a plurality of molten metal outflow holes are provided on the side wall of the housing close to the side wall of the hot water receiving side container,
The housing is characterized in that the side wall of the housing on the opposite side is in the form of a non-porous plate, a bottom plate that can be opened is attached to the bottom of the housing, and a hanging ring is provided on the top of the housing.
以下、図面を参照しながら、実施例により本考
案の特徴を具体的に説明する。
Hereinafter, the features of the present invention will be specifically explained using examples with reference to the drawings.
第１図は、メツキ槽内に溶融亜鉛を注入する作
業に本考案のドロス回収装置を適用した実施例を
説明するための図である。 FIG. 1 is a diagram for explaining an embodiment in which the dross recovery device of the present invention is applied to the work of injecting molten zinc into a plating tank.
溶融亜鉛容器１から注入樋２を介してメツキ槽
３内に、溶融亜鉛４を注入する。このメツキ槽３
には、注入樋２からの溶融亜鉛４を受けてメツキ
槽３内に流入させる注入シユート５が垂直方向に
設けられており、この注入シユート５を取り囲む
ようにドロス回収凾６が配置されている。なお、
N2、CO2、アンゴル等の非酸化性ガスを噴出さ
せるガス吹出し管を注入シユート５の内部に設け
て、注入シユート５の内部雰囲気を非酸化性雰囲
気に維持することもできる。これによつて、注入
シユート５内を落下する溶融亜鉛４の酸化が抑制
されるので、ドロスの発生が少なくなる。 Molten zinc 4 is injected from a molten zinc container 1 into a plating tank 3 via an injection gutter 2. This plating tank 3
An injection chute 5 is vertically provided to receive the molten zinc 4 from the injection gutter 2 and flow it into the plating tank 3, and a dross collection box 6 is arranged to surround the injection chute 5. . In addition,
It is also possible to maintain the internal atmosphere of the injection chute 5 in a non-oxidizing atmosphere by providing a gas blowing pipe inside the injection chute 5 for blowing out a non-oxidizing gas such as N 2 , CO 2 or Angol. This suppresses oxidation of the molten zinc 4 falling within the injection chute 5, thereby reducing the generation of dross.
ドロス回収凾６は、第２図に示すように、メツ
キ槽３の周辺部に向かう側壁７ａ，７ｂの多数の
孔部８が穿設されており、メツキ槽３の中央側に
向かう側壁７ｃ，７ｄは無孔の板材でボツクス状
に構成されている。また、ドロス回収凾６の底壁
は、ヒンジ９を中央とした両開き式の底板１０
ａ，１０ｂで作られている。他方、ドロス回収凾
６の上部には、適宜のフツクに係合してドロス回
収凾６を持ち上げることができるように、吊り環
１１が取り付けられている。なお、第２図にあつ
ては、実際のドロス回収凾６よりも縦：横の比率
を大きくとつているが、このドロス回収凾６の垂
直方向長さは、第１図に示すように、その底部が
メツキ槽３底壁よりも若干上方に位置する長さに
している。 As shown in FIG. 2, the dross collection box 6 has a large number of holes 8 in side walls 7a and 7b facing the periphery of the plating tank 3, and side walls 7c and 7b facing the center of the plating tank 3. Reference numeral 7d is a non-perforated plate material having a box shape. In addition, the bottom wall of the dross collection box 6 has a double-opening bottom plate 10 with a hinge 9 in the center.
It is made of a, 10b. On the other hand, a hanging ring 11 is attached to the upper part of the dross collection box 6 so that the dross collection box 6 can be lifted by engaging with a suitable hook. In addition, in FIG. 2, the length:width ratio is set larger than that of the actual dross collection box 6, but the vertical length of this dross collection box 6 is as shown in FIG. The length is such that its bottom is located slightly above the bottom wall of the plating tank 3.
注入シユート５の周囲にこのようなドロス回収
凾６を配置しているため、注入樋２を流下して注
入された溶融亜鉛４は、第１図において矢印で示
すような流れとなつて、底板１０ａ，１０ｂに衝
突した後、ドロス回収凾６内を上昇する流れとな
つて、その上昇過程で孔部８からドロス回収凾６
外のメツキ槽３内に流入する。この点から、注入
シユート５の流出口５ａは、できるだけドロス回
収凾６の底板１０ａ，１０ｂに近接させておくこ
とが好ましい。他方、溶融亜鉛４に含まれている
ドロスは、比重が小さなため、溶融亜鉛４と分離
して上昇し、液面に達して表面ドロス１２とな
る。 Since such a dross collection box 6 is arranged around the injection chute 5, the molten zinc 4 poured down the injection gutter 2 flows as shown by the arrow in FIG. 1 and reaches the bottom plate. After colliding with 10a and 10b, the flow rises inside the dross collection can 6, and in the rising process, the dross collection can 6 is released from the hole 8.
It flows into the plating tank 3 outside. From this point of view, it is preferable to place the outlet 5a of the injection chute 5 as close to the bottom plates 10a, 10b of the dross collection box 6 as possible. On the other hand, since the dross contained in the molten zinc 4 has a small specific gravity, it separates from the molten zinc 4 and rises, reaches the liquid level and becomes the surface dross 12.
このとき、メツキ槽３の側壁に近い側壁７ａ，
７ｂのみに孔部８が設けられているため、孔部８
を通過する溶融亜鉛４の圧損が大きい。したがつ
て、溶融亜鉛４からのドロスの分離は確実とな
る。また、ドロスが分離された溶融亜鉛４は、ド
ロス回収凾６を廻り込み、メツキ槽３全体に流動
し、メツキ槽１３となる。 At this time, the side wall 7a near the side wall of the plating tank 3,
Since the hole 8 is provided only in 7b, the hole 8
The pressure loss of molten zinc 4 passing through is large. Therefore, the separation of dross from the molten zinc 4 is ensured. Further, the molten zinc 4 from which the dross has been separated goes around the dross collection box 6 and flows throughout the plating tank 3 to become the plating tank 13.
このようにして、注入シユート５から注入され
る溶融亜鉛４に含まれているドロスは、ドロス回
収凾６内に閉じ込められて、メツキ槽３内に流入
することがない。そして、溶融亜鉛４の注入作業
を完了した後、ドロス回収凾６の吊り環１１にフ
ツクを掛け、天井クレーン等によつて徐々にドロ
ス回収凾６を吊り上げる。このとき、ドロス回収
凾６内にある溶融亜鉛４は、孔部８からメツキ槽
３に流出し、ドロス回収凾６内には表面ドロス１
２のみが残留する。 In this way, the dross contained in the molten zinc 4 injected from the injection chute 5 is trapped in the dross collection container 6 and does not flow into the plating tank 3. After the injection work of the molten zinc 4 is completed, a hook is placed on the hanging ring 11 of the dross collection box 6, and the dross collection box 6 is gradually lifted up by an overhead crane or the like. At this time, the molten zinc 4 in the dross collection box 6 flows out from the hole 8 into the plating tank 3, and the surface dross 1 remains in the dross collection box 6.
Only 2 remains.
ドロス回収凾６をメツキ槽３から完全に引き上
げた後、底板１０ａ，１０ｂを固定しているピン
１４を外す。この底板１０ａ，１０ｂには収容さ
れた表面ドロス１２の重量が加わつているので、
ヒンジ９を中心として底板１０ａ，１０ｂが開
き、内部のドロス１２がドロス回収凾６から排出
される。 After the dross collection box 6 is completely pulled up from the plating tank 3, the pins 14 fixing the bottom plates 10a and 10b are removed. Since the weight of the stored surface dross 12 is added to the bottom plates 10a and 10b,
The bottom plates 10a and 10b are opened around the hinge 9, and the dross 12 inside is discharged from the dross collection box 6.
なお、メツキ浴１３にはターンロール１５が浸
漬されており、スナウト１６を経由して送られて
来た鋼帯１７がメツキ浴１３を通過し、メツキ鋼
帯１８としてメツキ浴１３から引き上げられる。 A turn roll 15 is immersed in the plating bath 13, and the steel strip 17 sent through the snout 16 passes through the plating bath 13 and is pulled up from the plating bath 13 as a plating steel strip 18.
以上に説明したように、本考案においては、注
入シユートの周囲をドロス回収凾で取り囲み、溶
融金属のみがドロス回収凾に設けた孔部から受湯
側容器に流入し、溶融金属に含まれているドロス
をドロス回収凾内に残留させている。そして、溶
融金属から分離されたドロスは、ドロス回収凾を
持ち上げて受湯側容器から取り出した状態で、底
板を開くことによつて、ドロス回収凾から容易に
排出することができる。このようにして、本考案
によるとき、受湯側容器に収容される溶融金属に
ドロスが分散又は拡散することが防止され、しか
もドロス回収凾からのドロスの排出を容易に行う
ことが可能となつた。
As explained above, in the present invention, the injection chute is surrounded by a dross collection box, and only the molten metal flows into the receiving vessel through the hole provided in the dross collection box, and is not contained in the molten metal. The remaining dross remains in the dross collection container. The dross separated from the molten metal can be easily discharged from the dross collection container by opening the bottom plate while lifting the dross collection container and removing it from the receiving container. In this way, according to the present invention, it is possible to prevent dross from dispersing or diffusing into the molten metal contained in the molten metal receiving container, and also to easily discharge the dross from the dross collection container. Ta.
第１図は溶融亜鉛メツキラインのメツキ槽に本
考案のドロス回収装置を適用した実施例を説明す
る図であり、第２図は本考案ドロス回収装置の主
要部であるドロス回収凾を示す斜視図である。
Fig. 1 is a diagram illustrating an embodiment in which the dross recovery device of the present invention is applied to a plating tank of a hot-dip galvanizing line, and Fig. 2 is a perspective view showing a dross recovery container, which is the main part of the dross recovery device of the present invention. It is.
Claims (1)
器に溶融金属を注入する溶融金属注入装置におい
て、前記注入シユートの外周を取り囲んで凾体を
配置し、前記受湯側容器の側壁に近い前記凾体の
側壁に複数の溶融金属流出用孔部を設け、反対側
の前記凾体の側壁を無孔の板状とし、前記凾体の
底部に開蓋可能な底板を取り付け、且つ前記凾体
の上部に吊り環を設けたことを特徴とするドロス
回収装置。 In a molten metal injection device that injects molten metal from an injection side container to a receiving side container via an injection chute, a housing is disposed surrounding the outer periphery of the injection chute, and the housing is close to a side wall of the metal receiving side container. A plurality of molten metal outflow holes are provided in the side wall of the body, the side wall of the housing body on the opposite side is formed into a non-porous plate shape, a bottom plate that can be opened is attached to the bottom of the housing body, and A dross recovery device characterized by a hanging ring provided at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13366987U JPH0318499Y2 (en) | 1987-08-31 | 1987-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13366987U JPH0318499Y2 (en) | 1987-08-31 | 1987-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6437462U JPS6437462U (en) | 1989-03-07 |
| JPH0318499Y2 true JPH0318499Y2 (en) | 1991-04-18 |
Family
ID=31391745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13366987U Expired JPH0318499Y2 (en) | 1987-08-31 | 1987-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318499Y2 (en) |
-
1987
- 1987-08-31 JP JP13366987U patent/JPH0318499Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6437462U (en) | 1989-03-07 |
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