JP2500966B2 - Vertical tank drainage device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a device for draining liquid in a vertical tank device, and more particularly to a drainage device which alleviates vibration of a strip due to the flow of liquid. Is.

[0002]

2. Description of the Prior Art rolls arranged vertically, was supplied and drained liquid electrolyte such as against the strip is supported substantially vertically, pickling in supply and drainage to process,
In a device that performs plating or the like, it is necessary to always store a fixed amount of liquid inside the device.

In such a device, a drainage device provided on the upper part of the device is conventionally disclosed, for example, in Japanese Patent Laid-Open No. 63-30.
In the case of the publication of Japanese Patent No. 3093, a method using a drainage box as shown in FIG. 4 is generally known.

[0004]

The drainage device according to FIG. 4 has the problem of vibrating the strip. That is, when a large amount of liquid such as electrolyte is discharged from the lower part to the upper part, the flow direction of the liquid changes from an upward flow to a horizontal flow, so the liquid becomes agitated in the drain box.
The liquid flow in the agitated state gives vibration to the strip, which causes wrinkles and breaks in the thin strip.

The present invention has been made in order to solve the problems of the prior art as described above, and its purpose is to provide a liquid flow which does not become a stirring state in the drainage device, Another object of the present invention is to provide a drainage device that does not cause wrinkles or breaks even on thin strips.

[0006]

The gist of the present invention is to
For the strip 1 supported almost vertically between the arranged deflector rolls 4, 4 ′ , the strip 1 is
A liquid such as an electrolytic solution is supplied from the lower part of the traveling tank body 8 to
Was drained from the top of the tank body 8, the electrolyte such as cistern body 8 liquid is vertical tank always configured as being constant amount storage
In drainage device, the drainage box 2 provided on the top of the said vessel body 8, the drainage box of the strip 1 the width direction
Drain port 6 provided on both walls of the box 2, and 6 ', the interior of the drainage box 2, surrounding the strip 1 traveling
And a partition wall 5 provided so as to, and a large number of through holes 5-1 formed in the partition Setsukabe 5, it was filled to flow into the partition Setsukabe 5
Liquid such as electrolyte should flow out to the drain box 2.
It is a vertical tank drainage device characterized in that it is configured .

[0007]

FIG. 1 is a side sectional view showing an embodiment of the present invention, and 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 FIG. 1, the strip 1 is supported by the deflector rolls 4 and 4 ', and the liquid is supplied to the supply pipes 7 and 4.
7 ′ flows into the tank body 8 of the vertical tank as an ascending flow velocity. The flow direction of the strip 1 may be either upward or downward in the tank body 8.

After that, the liquid having the rising flow velocity is
The total amount comes inside the partition wall 5 in the drainage box 2. The liquid having the rising flow velocity gradually flows into the drainage box 2 on the outside through the through hole 5-1 so as to have a horizontal flow velocity. Therefore, the speed of the ascending velocity is relaxed,
At the top of the liquid surface inside the partition wall 5, there is a horizontal flow velocity.

The liquid flowing out into the drainage box 2 through a large number of through holes 5-1 in the partition wall 5 flows out of the system through drainage ports 6 and 6'provided in the drainage box 2 as a horizontal flow velocity.
The number of drainage ports 6 and 6'may be one. Further, the partition wall 5 also has a function of a wave preventing wall, and serves as a buffer for stirring the liquid with the partition wall 5 as a boundary. With such an action, the present invention can alleviate the vibration due to the liquid flow of the strip.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
Strip 1 is supported on deflector rolls 4, 4 '. In the case of an electrolytic tank, the deflector roll 4 is often a conductor roll. The flow direction of the strip 1 may be either upward or downward in the tank body 8.

The drainage box 2 is connected to the upper flange 8-1 of the tank body 8. The tank body 8 has an electrode in the case of an electrolytic tank. The liquid flows into the tank body 8 of the vertical tank from the liquid supply pipes 7 and 7'as a rising flow velocity. In the case of this embodiment, the liquid supply system shows an example in which the liquid supply pipes 7 and 7 ′ are positioned in the immediate vicinity of the lower portion of the tank main body 8, but they may not be positioned in the immediate vicinity. To the end, most of the drainage is the tank body 8
The liquid may be drained from the drainage device on the upper part of.

The partition wall 5 is provided with a large number of through holes 5-1 on the front and back surfaces of the strip 1, and has an ascending flow velocity supplied from the liquid supply pipes 7 and 7'below the tank body 8. The partition wall 5 and the drainage box 2 have a substantially sealed structure except for the through hole 5-1 and the seal plate 3 so that almost all of the liquid flowing therein flows into the partition wall 5.

In this embodiment, the lower seal is the seal plate 3, but the dam rolls 10 and 1 as shown in FIG.
It may be 0 '. The liquid having the rising flow velocity gradually becomes horizontal flow velocity through the through hole 5-1 and flows out to the outer drainage box 2. The through hole 5-1 is provided only on the partition wall 5 facing the front and back of the strip 1, and the drainage port 6,
If the partition wall 5 facing 6'is not provided with the through hole 5-1, a uniform rising flow velocity with respect to the strip 1 can be obtained.

The size of the through holes 5-1 is about 20 mm, and it is preferable that the through holes 5-1 be as dense as possible. When the flow rate is high, the number of through holes 5-1 is preferably greater near the center of the partition wall 5 than near the drainage ports 6 and 6 '. Most of the liquid that has flowed into the drainage box 2 from both sides of the strip 1 merges once inside the drainage box 2 and flows out to the outside through the drainage ports 6 and 6 '. Further, a part of the liquid flows out through the gap between the seal plates 3 below the tank body 8.

The present invention has been described above with reference to the drawings, but the present invention is not limited to this, and the design is changed according to the purpose of draining the vertical tank, and of course it deviates from the scope of the present invention. is not.

[0016]

The present invention has the following effects.
First, having a partition wall in the interior of the drainage box, the partition wall can be by having a number of through holes, to alleviate giving vibration due to the flow of liquid into the strip. Therefore, the strip does not flutter, and when the tank body is used as an electrolytic tank, the electrode interval can be narrowed from 40 mm to 20 mm, and the energization efficiency of the electrode can be significantly increased. Further, it is possible to provide a vertical tank device in which wrinkles and breaks do not occur with respect to thin strips.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a sectional view taken along line BB of FIG.

FIG. 4 is a side sectional view of a conventional drainage device.

[Explanation of symbols]

 1 Strip 2 Drain Box 3 Seal Plate 4 Deflect Roll 4'Deflect Roll 5 Partition Wall 5-1 Through Hole 6 Drain Port 6'Drain Port 7 Liquid Supply Pipe 7 'Liquid Supply Pipe 8 Tank Body 8-1 Flange 10 Dam roll 10 'Dam roll 11 Jet header 12 Tank body 13 Electrode 14 Strip 15 Deflect roll 16 Conductor roll 17 Drainage box

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Marumoshi 46-59 Nakahara, Tobata-ku, Kitakyushu City Nittetsu Plant Design Co., Ltd. (72) Inventor Shuji Masuda 46-59 Nakahara, Tobata-ku, Kitakyushu City Runt Design Co., Ltd.

Claims (1)

(57) [Claims] 1. Deflector rolls 4, which are arranged one above the other.
Between strips 4 ', which are supported almost vertically between 4' .
Then, electrolysis is performed from the bottom of the tank body 8 on which the strip 1 runs.
A liquid such as a liquid is supplied and drained from the upper part of the tank main body 8
The main body 8 is constructed so that a constant amount of electrolyte or other liquid is stored.
In drainage device made the vertical tank, the drainage box 2 provided on the top of the said vessel body 8, the strip 1
Drainage ports 6 provided on both walls of the drainage box 2 in the width direction
Includes a 6 ', the interior of the drainage box 2, and a partition wall 5 provided so as to surround the scan <br/> trip 1 travels,
Moreover, a large number of through holes 5-1 are provided in the partition wall 5 , and the partition wall
The liquid such as the electrolytic solution that has flowed into the inside of 5 is filled with the drainage box.
A vertical tank drainage device, characterized in that it is constructed so as to flow out to the tank 2.