JPH0426451Y2 - - Google Patents
Info
- Publication number
- JPH0426451Y2 JPH0426451Y2 JP1987102738U JP10273887U JPH0426451Y2 JP H0426451 Y2 JPH0426451 Y2 JP H0426451Y2 JP 1987102738 U JP1987102738 U JP 1987102738U JP 10273887 U JP10273887 U JP 10273887U JP H0426451 Y2 JPH0426451 Y2 JP H0426451Y2
- Authority
- JP
- Japan
- Prior art keywords
- weir
- pickling
- steel strip
- liquid
- 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
- 238000005554 pickling Methods 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 38
- 238000009736 wetting Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 40
- 239000010959 steel Substances 0.000 description 40
- 239000002699 waste material Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は酸洗槽の堰の損耗を抑制し、該堰部で
の帯状体例えば鋼帯の疵発生防止装置に関するも
のである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for suppressing the wear and tear of a weir in a pickling tank and preventing the occurrence of defects in a strip, such as a steel strip, at the weir.
（従来の技術）
一般に帯状体例えば鋼帯の連続酸洗設備におけ
る酸洗槽は、第２図に示すように各槽６ａ〜６ｄ
内の酸洗液Ｌの濃度バランスを保つために、堰５
ａ〜５ｅで分割されており、鋼帯１はこの分割さ
れた各酸洗槽６ａ，６ｂ，６ｃ，６ｄの順に順次
浸漬してゆく。(Prior Art) Generally, pickling tanks in continuous pickling equipment for strips, such as steel strips, are as shown in FIG.
In order to maintain the concentration balance of the pickling liquid L in the weir 5.
The steel strip 1 is immersed in each of the divided pickling tanks 6a, 6b, 6c, and 6d in this order.
各槽の堰５は入側より５ａ，５ｂ，５ｃ，５
ｄ，５ｅの順に次第に高くなつている。新酸洗液
は６ｃもしくは６ｄより投入され、各槽の堰の段
差によるオーバーフローによりよりの方向に
流れ、廃酸液４０は最低位にある槽６ａからオー
バーフロー槽７に排出される。 The weirs 5 of each tank are 5a, 5b, 5c, 5 from the inlet side.
The values gradually increase in the order of d and 5e. Fresh pickling liquid is introduced from 6c or 6d and flows in the opposite direction due to overflow caused by the step of the weir in each tank, and the waste acid solution 40 is discharged from tank 6a located at the lowest level to overflow tank 7.
各酸洗槽の堰５ａ，５ｂ，５ｃ，５ｄ，５ｅの
上部の鋼帯１と接触する部分５a0には、キヤツプ
ドタイルと呼ばれる陶磁器かもしくはロールが取
り付けられている。 Ceramic ceramics or rolls called capped tiles are attached to the upper portions 5a0 of the weirs 5a, 5b, 5c, 5d, and 5e of each pickling tank that come into contact with the steel strip 1.
酸洗槽入側の最初の堰５ａ（以後第一堰と称す）
に進入する鋼帯１は乾燥した状態にあり、第一堰
の上部５a0がキヤツプドタイルで形成された場合
には、鋼帯が通板されている状態では、第３図に
示すように廃酸液Ｌが第一堰５ａ上部５a0よりオ
ーバーフロー槽７に流れ落ちるようになつてはい
るが、鋼帯１裏面に接している部分においては廃
酸液L0の流れは充分かつ均一ではなく、鋼帯１
とキヤツプドタイル５a0とが乾燥した状態で直接
接触することも多くキヤツプドタイル５a0部に疵
が発生（損傷）し、鋼帯１にも疵が発生すること
ある。 The first weir 5a on the inlet side of the pickling tank (hereinafter referred to as the first weir)
The steel strip 1 entering the area is in a dry state, and if the upper part 5a0 of the first weir is formed of capped tiles, then when the steel strip is threaded, it will be as shown in Fig. 3. Although the waste acid liquid L is designed to flow down from the upper part 5a0 of the first weir 5a to the overflow tank 7, the flow of the waste acid liquid L0 is not sufficient and uniform in the part that is in contact with the back surface of the steel strip 1. , steel strip 1
The capped tile 5a0 often comes into direct contact with the capped tile 5a0 in a dry state, causing flaws (damage) to occur in the capped tile 5a0, and flaws also occurring in the steel strip 1.
また、ラインの加速時においては、鋼帯１が酸
洗槽出側（鋼帯出側）に持ち上げる酸洗液の量が
多くなり、第１槽６ａにおいては液面が低下し、
第１堰５ａよりオーバーフローする酸洗液はなく
なり、鋼帯とキヤツプドタイル上部が乾燥した状
態で直接接触し、更に鋼帯に疵が発生し易くな
る。 In addition, when the line is accelerated, the amount of pickling liquid lifted by the steel strip 1 to the pickling tank exit side (steel strip exit side) increases, and the liquid level in the first tank 6a decreases.
No more pickling liquid overflows from the first weir 5a, and the steel strip and the upper part of the capped tile come into direct contact in a dry state, further making it easier for the steel strip to develop flaws.
第１堰５ａ以降の堰５ｂ，５ｃ，５ｄ，５ｅに
おいては、鋼帯はその前の槽で酸洗槽に浸漬し、
裏面に酸液が付着しているため堰部を通過する
際、鋼帯と該堰上部表面との間に液膜を形成し、
鋼帯裏面および堰上部表面に疵が発生することは
ない。 At weirs 5b, 5c, 5d, and 5e after the first weir 5a, the steel strip is immersed in a pickling tank in the previous tank,
Since the acid solution is attached to the back side, when passing through the weir, a liquid film is formed between the steel strip and the upper surface of the weir.
No flaws will occur on the back side of the steel strip or on the top surface of the weir.
近年鋼帯の酸洗工程は、たとえば、特開昭58−
209415号公報に示されているように高速化、コン
パント化を目的としたメカニカルデスケーリング
＋酸洗方式が主流となつてきた。 In recent years, the pickling process for steel strips has been developed, for example, in JP-A-58-
As shown in Publication No. 209415, the mechanical descaling + pickling method aimed at speeding up and compactness has become mainstream.
そのために、酸洗槽には、メカニカルデスケー
リング装置により酸化スケール膜がかなり除去さ
れ、地鉄が露出あるいは酸化スケール厚みの薄い
鋼帯が入つてくるようになり、鋼帯下面と第１堰
５ａとの直接接触により、鋼帯および堰上部表面
に疵が更に発生しやすくなつた。 For this purpose, a mechanical descaling device removes a large amount of the oxide scale film into the pickling tank, and the steel strip with exposed base steel or thin oxide scale comes into the pickling tank, and the lower surface of the steel strip and the first weir 5a are brought into the pickling tank. Due to direct contact with the steel strip and the upper surface of the weir, scratches were more likely to occur.
（考案が解決しようとする問題点）
本考案は前述の酸洗槽第一堰の損傷を防止する
と共に、この第一堰での鋼帯等の帯状体の疵発生
を防止する装置を提供するものである。(Problems to be Solved by the Invention) The present invention provides a device that prevents damage to the first weir of the pickling tank and prevents flaws from occurring in strips such as steel strips at the first weir. It is something.
（問題点を解決するための手段）
本考案は、帯状体の連続酸洗設備の酸洗槽の堰
入側に、液溜を設け、この液溜に進入する帯状体
の下面に接し該下面を湿潤する湿潤ロールを回転
自在に配設したことを特徴とする連続酸洗設備に
おける酸洗槽内疵防止装置であり、水、水溶液、
酸洗液（含酸洗廃液）あるいはこれらの混合液体
を第一堰に設けた液体溜に溜め、この液体溜めに
配設した回転自在な湿潤ロールを介して、侵入す
る例えば鋼帯下面に液体を塗布し、鋼帯下面と第
一堰の上面との間に液膜を形成して鋼帯下面と第
一堰の上面との直接接触を防ぎ、該第一堰の損傷
を防止すると共にこの第一堰での鋼帯の疵発生を
防止するものである。(Means for Solving the Problems) The present invention provides a liquid reservoir on the weir side of the pickling tank of continuous pickling equipment for strips, and contacts the lower surface of the strips entering the reservoir so that the lower surface This is a pickling tank internal flaw prevention device for continuous pickling equipment, characterized by a rotatably arranged wetting roll for wetting water, aqueous solutions,
The pickling liquid (pickling waste liquid) or a mixed liquid thereof is collected in a liquid reservoir provided at the first weir, and the liquid that enters, for example, the lower surface of the steel strip, is collected through a rotatable wetting roll installed in this liquid reservoir. is applied to form a liquid film between the lower surface of the steel strip and the upper surface of the first weir to prevent direct contact between the lower surface of the steel strip and the upper surface of the first weir, thereby preventing damage to the first weir and preventing damage to the first weir. This prevents flaws from occurring in the steel strip at the first weir.
以下に本考案をその実施例に基づき説明する。 The present invention will be explained below based on its embodiments.
第１図は、鋼帯の連続酸洗設備に適用した実施
例を示すものである。 FIG. 1 shows an embodiment applied to continuous pickling equipment for steel strips.
この実施例においては、酸洗槽６ａの入側の第
一堰５ａの上部５a0入側に液体溜めポツト１２を
形成すると共に、このポツト１２内に、湿潤性の
良好な表面層を有する湿潤ロール１３を回転自在
に設けてなるものである。 In this embodiment, a liquid reservoir pot 12 is formed on the upper part 5a 0 of the first weir 5a on the inlet side of the pickling tank 6a. A roll 13 is rotatably provided.
即ち第一堰５ａから廃酸洗液４0をオーバーフ
ローさせて、ポツト１２内に溜めてロール１３を
廃酸洗液４0に侵漬しておき、鋼帯１の進入によ
り湿潤ロール１３を回転させて侵入鋼帯１を支承
して、第一堰に対する接触力を緩和する（液膜を
薄くできる効果がある）。更に該湿潤ロール１３
を介して廃酸洗液４0を鋼帯１の下面に塗布して、
鋼帯１の下面と第一堰５ａの上部５a0表面間に液
膜を形成することにより、鋼帯１への疵発生およ
び第一堰５ａの上部５a0の損傷を防止するように
したものである。湿潤ロール１３は駆動装置によ
り回転できるようにしても良い。 That is, the waste pickling liquid 40 overflows from the first weir 5a, is collected in the pot 12, and the roll 13 is immersed in the waste pickling liquid 40 , and the wet roll 13 is rotated by the entrance of the steel strip 1. This supports the intruding steel strip 1 and relieves the contact force against the first weir (this has the effect of making the liquid film thinner). Furthermore, the wet roll 13
Apply the waste pickling liquid 40 to the lower surface of the steel strip 1 through the
By forming a liquid film between the lower surface of the steel strip 1 and the upper surface 5a 0 of the first weir 5a, occurrence of flaws in the steel strip 1 and damage to the upper portion 5a 0 of the first weir 5a are prevented. It is. The wetting roll 13 may be rotated by a drive device.
なお、上記の実施例においては、鋼帯と酸洗槽
の第一堰との間に、液膜を形成するための液体と
して、酸洗液を使用しているが、これにの他に酸
洗に悪影響のない他の水溶液、水あるいはこれら
の混合液体も使用する。 In the above example, pickling liquid is used as the liquid to form a liquid film between the steel strip and the first weir of the pickling tank, but in addition to this, acid Other aqueous solutions, water, or mixtures of these liquids that do not have a negative effect on cleaning may also be used.
これらの液体の中、酸洗液を使用した場合、酸
洗効率を上げることができ、酸洗廃液を使用すれ
ばその残存酸洗能を有効に利用することができ
る。 Among these liquids, when a pickling liquid is used, the pickling efficiency can be increased, and when a pickling waste liquid is used, the remaining pickling ability can be effectively utilized.
又、水蒸気を併用した場合、酸洗過程における
鋼帯と酸洗液との温度平衡時間の短縮ができ、鋼
帯の上面からも水蒸気を供給すれば、更に酸洗性
を向上することが可能であり、酸洗液と水蒸気と
の併用等も考慮できる。 In addition, when steam is used in combination, the temperature equilibration time between the steel strip and the pickling solution during the pickling process can be shortened, and if steam is also supplied from the top of the steel strip, pickling performance can be further improved. Therefore, the combined use of pickling liquid and steam can also be considered.
又、流体の供給手段は、前記実施例に限るもの
ではなく、液体溜めポツトに液体を溜めて、湿潤
ロールを該液体に侵漬できる程度に供給して、該
湿潤鋼帯と第一堰との間でロールを充分に湿潤で
きる程度に供給すれば良く、液体は必ずしも高圧
で供給する必要はない。 Further, the fluid supplying means is not limited to the above embodiment, and the fluid is stored in a liquid reservoir pot and supplied to an extent that the wet roll can be immersed in the liquid, and the wet steel strip and the first weir are connected to each other. The liquid need only be supplied to the extent that the roll can be sufficiently wetted between the two, and the liquid does not necessarily need to be supplied at high pressure.
又、上記実施例は鋼帯の連続酸洗設備に適用し
た例を示しているが、鋼帯に限らず他の金属帯あ
るいは線材等他の帯状体にも適用するものであ
る。 Further, although the above embodiment shows an example in which the present invention is applied to a continuous pickling facility for steel strips, the present invention is applicable not only to steel strips but also to other strip-like bodies such as other metal strips or wire rods.
（考案の効果）
本考案においては、第一堰に進入する帯状体の
下面を液体溜めに浸漬の回転自在な湿潤ロールで
支承し、第一堰に対する接触力を緩和すると共に
連続酸洗槽入側の第一堰の上面と、進入する帯状
体との間に効果的に液膜を形成できて帯状体が第
一堰に直接接触することはなくなるので、帯状体
への疵発生はなく、良好な製品を得ることができ
る。(Effects of the invention) In the present invention, the lower surface of the strip entering the first weir is supported by a rotatable wet roll immersed in a liquid reservoir to alleviate the contact force against the first weir and to insert the continuous pickling tank into the weir. A liquid film can be effectively formed between the upper surface of the first weir on the side and the incoming strip, and the strip does not come into direct contact with the first weir, so there is no damage to the strip. You can get good products.
又、第一堰の損耗も軽微なので長期に亘つて交
換、補修等の必要がなく、生産性の向上、設備コ
ストの削減もできる等の効果をもたらすものであ
る。 Furthermore, since the wear and tear on the first weir is slight, there is no need for replacement or repair over a long period of time, resulting in improvements in productivity and reduction in equipment costs.
第１図は本考案の実施例を示す一部切欠立面説
明図、第２図は本考案を実施する連続酸洗設備の
全体配置を示す側断面説明図、第３図は従来の連
続酸洗槽第一堰と鋼帯との接触状態を示す一部切
欠立面説明図である。
１……鋼帯、４……酸洗液、５ａ〜５ｅ……
堰、６ａ〜６ｄ……酸洗槽、７……オーバーフロ
ー層、８……キヤツプドタイル、１２……ポツ
ト、１３……湿潤ロール。
Figure 1 is a partially cutaway elevation view showing an embodiment of the present invention, Figure 2 is a side sectional view showing the overall arrangement of continuous pickling equipment implementing the present invention, and Figure 3 is a conventional continuous pickling equipment. It is a partially cutaway elevational explanatory view showing a contact state between the first weir of the washing tank and the steel strip. 1... Steel strip, 4... Pickling liquid, 5a to 5e...
Weir, 6a to 6d... pickling tank, 7... overflow layer, 8... capped tile, 12... pot, 13... wet roll.
Claims (1)
設け、この液溜に進入する帯状体の下面に接し、
該下面を湿潤する湿潤ロールを回転自在に配設し
たことを特徴とする酸洗槽内疵防止装置。A liquid reservoir is provided on the weir entry side of the pickling tank of the continuous pickling equipment for strips, and the solution is in contact with the lower surface of the strips entering this reservoir,
A device for preventing defects in a pickling tank, characterized in that a wetting roll for moistening the lower surface is rotatably disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102738U JPH0426451Y2 (en) | 1987-07-06 | 1987-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987102738U JPH0426451Y2 (en) | 1987-07-06 | 1987-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6410068U JPS6410068U (en) | 1989-01-19 |
| JPH0426451Y2 true JPH0426451Y2 (en) | 1992-06-25 |
Family
ID=31332921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987102738U Expired JPH0426451Y2 (en) | 1987-07-06 | 1987-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426451Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57188871U (en) * | 1981-05-22 | 1982-11-30 |
-
1987
- 1987-07-06 JP JP1987102738U patent/JPH0426451Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6410068U (en) | 1989-01-19 |
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