JPS6238030B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for immersing conveyed objects in transit.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for immersing a conveyed object in a liquid with a simple structure.

Another object of the present invention is to provide an apparatus that is most suitable for immersing a plating liquid or the like into a conveyed object, such as a rolled material in a continuous rolling process, for example.

In order to achieve the above-mentioned object, the present invention includes a liquid pipe through which objects conveyed in the length direction pass, a shield nozzle disposed at the entrance/exit of the transported object of this liquid pipe, and a shield nozzle disposed in the middle of the liquid pipe. Consisting of a liquid supply nozzle and a liquid recovery box, and a liquid circulation device that is connected to the liquid supply nozzle and the liquid recovery box and circulates the liquid to the liquid pipe, the shield nozzle is opened in the nozzle body. A large number of gas injection holes are provided along the circumferential direction, and the center line of the gas injection holes is inclined toward the inner part of the liquid pipe, and the liquid supply nozzle is provided with an opening in the nozzle body. It is characterized in that it is constructed by providing a large number of liquid ejection holes along the circumferential direction.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a liquid pipe through which a long conveyed object 2, which is conveyed in the longitudinal direction, passes along its length. Shield nozzles 10 are installed at both ends of this liquid pipe 1, that is, at the entrance and exit of the transported object 1.
A liquid supply nozzle 20 and a liquid recovery box 30 are respectively disposed in the middle of the liquid pipe 1.

As shown in FIGS. 3 and 4, the shield nozzle 10 consists of a double cylindrical shield nozzle body 11, and the inner surface of the inner cylinder 12 has a tapered shape that gradually widens in the direction in which the conveyed object 2 passes. be. On this inner surface, a large number of gas injection holes 13 for injecting gas to seal the liquid in the liquid tube 1 are arranged in succession along the circumferential direction.

Each of the gas injection holes 13 is formed to be inclined so as to open toward the direction in which the conveyed object 2 is directed. That is, the gas injection hole 13 is formed to be inclined toward the inner part of the liquid pipe 1 in order to completely seal the liquid.
Although a large number of gas injection holes 13 are arranged in an annular manner along the circumferential direction of the inner surface of the inner cylinder 12, a plurality of annular hole groups 14 may be arranged in parallel in the direction of the center line of the nozzle body 11. good. In this case, the annular hole group 14 located on the inner side is replaced by the annular hole group 14 located on the outer side.
The angle of inclination of the hole with respect to the center line of the nozzle body 11 is made smaller than that in order to ensure complete liquid sealing.

In the illustrated shield nozzle 10, a large number of liquid ejection holes 24 similar to the annular hole group 14 are formed as an annular hole group 25 at positions inward from the annular hole group 14 of the gas injection holes 13. In this case, the annular hole group 14 of the gas injection holes 13 and the annular hole group 2 of the liquid injection holes 24
A partition wall 16 is formed between the inner cylinder 12 and the outer cylinder 15 as well as between the inner cylinder 12 and the outer cylinder 15. Then, the spaces formed by the inner cylinder 12, the outer cylinder 15, and the partition wall 16 are respectively designated as air chambers.
7 and a liquid chamber 18. A gas such as compressed air for shielding and a liquid such as cooling water or plating liquid to be radiated onto the conveyed object 2 are fed into each of the air chambers 17 and liquid chambers 18 through pipes 19 and 53, respectively.

In this way, the shield nozzle 1 in the illustrated example
The shield nozzle 10 has a liquid jet hole 24 formed therein to form a liquid supply nozzle 20 described later to simplify the structure, but the shield nozzle 10 has a gas jet hole 13.
Of course, it is also possible to form only one.

The liquid supply nozzle 20 has a nozzle body 21 which has substantially the same configuration as the shield nozzle 10 and is made up of a double cylinder consisting of an inner cylinder 22 and an outer cylinder 23. Many liquid spout holes 24
are arranged in series to form an annular hole group 25. Note that each liquid ejection hole 24 is formed to be inclined so as to open in the opposite direction to the direction in which the conveyed object 2 is directed.

The liquid collection box 30 has a guide tube 3 for carrying objects 20 inside.
1, and has a lower opening 33 connected to the upper part of a scale sedimentation tank 40, which will be described later.

The sedimentation tank 40 is connected to the lower part of the liquid recovery box 30, and purifies the liquid by precipitating the scale that has flowed in with the liquid. In addition, a cleaning port 41 for cleaning precipitated scale and a scale discharge pipe 42 are provided at the bottom of the settling tank 40.
Further, a drain pipe 43 is provided at the top to send purified liquid to a liquid tank 50, which will be described later.

The liquid tank 50 is configured to keep the liquid returned from the sedimentation tank via the drain pipe 43 at a predetermined temperature in the case of cooling water, and at a predetermined temperature and concentration in the case of plating liquid. A heat exchanger 51 for temperature adjustment and, for example, a plating solution concentration automatic regulator (not shown) in the case of a plating solution, are provided inside.

Then, liquid is supplied from this liquid tank 50 to each liquid supply nozzle 20 via a liquid supply pump 52. The liquid is supplied to the liquid pipe 1 through the liquid supply pipe 5 of each liquid supply nozzle 20.
3. It is possible to adjust the flow rate with a flow rate adjustment valve 54 provided in the middle.

Note that the mounting position and quantity of the liquid supply nozzle 20, liquid recovery box 30, etc., and the holes 13 and 2 of each nozzle 10 and 20, etc.
The angle of inclination 4, etc. are determined by the passing speed of the conveyed object 2, the properties of the liquid, the length of the liquid pipe 1, etc. Further, in the figure, 3 is an inlet guide cylinder connected to the inlet of the liquid pipe 1, and 4 is an outlet guide cylinder connected to the outlet. Further, although not shown in the drawings, a support cylinder, support rollers (both not shown), etc., for supporting the conveyed object 2 may be appropriately provided in the liquid tube 1.

The gas injected from the gas injection hole 13 of the shield nozzle 10 may be compressed air, nitrogen, argon gas, water vapor, etc., and is determined depending on the properties of the liquid and the purpose of use of the liquid.

Since the present invention is configured as described above, it is possible to immerse the passing object 2 in a straight line without bending its passage path. Therefore, it is possible to immerse a billet or the like in a conventional continuous rolling process with a simple configuration by simply adding the device of the present invention. Therefore, it is possible to provide an apparatus that can easily perform cooling, plating, etc. on a billet during a continuous rolling process.

A liquid pipe 1 through which the conveyed object 2 conveyed in the length direction passes, a shield nozzle 10 disposed at the entrance and exit of the conveyed object 2 of this liquid tube 1, and a liquid supply nozzle disposed in the middle of the liquid tube 1. 20 and the liquid recovery box 30, and a liquid supply device that is connected to the liquid supply nozzle 20 and the liquid recovery box 30 and circulates the liquid to the liquid pipe 1, the structure can be simplified.

Further, a shield nozzle 10 is disposed at the entrance and exit of the conveyed material in the liquid pipe 1, and this shield nozzle 10 is provided with a large number of gas injection holes 13 in the nozzle body 11 along the circumferential direction in which the interior of the nozzle body 11 opens. Since the center line of the gas injection hole 13 is inclined toward the inside of the liquid pipe 1, the liquid supply nozzle 2
0, the liquid supplied into the liquid pipe 1 will not leak to the outside from the conveyed object outlet and inlet of the liquid pipe 1. That is, the gas injected from the large number of gas injection holes 13 is formed with its center line inclined toward the inner part of the liquid pipe 1, so that the gas is injected toward the inner part of the liquid pipe 1. The pushing liquid will not leak to the outside.

Moreover, since the liquid is not sealed by bringing a gasket or the like into contact with the conveyed object 2, the structure is simple, and since there is no part that comes in direct contact with the conveyed object 2, it is also excellent in durability. In addition, the fact that there are no parts that come into direct contact with the product means that it can be used for conveyed objects that are heated to high temperatures; for example, it can be used for rolled materials during continuous rolling processes. be.

Moreover, since the liquid supply nozzle 20 is constructed by providing a large number of liquid ejection holes 24 in the nozzle body 21 along the circumferential direction that open inside the nozzle body 21, the liquid can be evenly applied to the conveyed object 2. It is possible to provide an efficient immersion device.

In addition, as shown in FIGS. 4 and 6, the liquid jet hole 2
4 and gas ejection holes 13 to the center line of the liquid pipe 1 in a cross section perpendicular to the center line of the liquid pipe 1.
Instead of having the extension lines of the center lines of the holes 13 and 24 intersect, the extension lines of the center lines of the holes 13 and 24 are slightly inclined in this cross section so that they do not intersect with the center line of the liquid pipe 1. By forming this, it becomes possible to swirl the liquid to be radiated or the gas to be jetted around the circumferential surface of the conveyed object 2 in a spiral manner. Therefore, by adopting such a configuration, the surface of the conveyed object 2 can be more uniformly sprayed with the liquid.

In addition, a liquid circulation device that is connected to the liquid supply nozzle 20 and the liquid recovery box 30 and circulates the liquid to the liquid pipe 1 is connected to a settling tank 40 and a settling tank 40 that receive the liquid in the liquid pipe 1 collected by the liquid recovery box 30. By comprising a liquid tank 50 that sends the liquid collected from the tank to the liquid supply nozzle 20 under predetermined conditions, the liquid pipe 1 can always be filled with the liquid under predetermined conditions. Furthermore, settling tank 4
For example, when used in a rolling process line, scale etc. on the surface of the rolled material as the conveyed material 2 can be removed and recovered. In addition, the liquid can be circulated and used, reducing running costs. Moreover, by using the liquid as a plating solution, it becomes possible to apply plating to the surface of the conveyed object while it is being conveyed, and it is possible to perform efficient plating by eliminating unnecessary steps such as transportation. In addition, by performing this plating on the rolled material, which is the second conveyed material in the rolling process line, this plating layer is also rolled by the roll stand in the next process, so that the surface layer of the rolled material is coated with copper, for example. This allows copper to diffuse and permeate sufficiently, making it possible to easily provide so-called weathering steel materials.

Therefore, by attaching the device of the present invention between the roll stands of a hot rolling mill and circulating the liquid as a plating liquid, it is possible to construct a hot rolling mill that can easily perform combined processing of rolling and surface treatment. become.

As explained above, according to the present invention, it is possible to spray a liquid onto a conveyed object while it is passing through without stopping its conveyance, and there is no need to bend the conveyance line for penetration. It has various excellent effects such as being able to be easily attached to an existing conveyance line without making any changes.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall plan view, FIG. 2 is a side view of the same, FIG. 3 is a vertical sectional view of a shield nozzle, and FIG. 5 is a longitudinal sectional view of the liquid supply nozzle, 6 is a sectional view taken along the Y-Y line in 5, 7 is a longitudinal sectional view of the liquid collection box, and 8 is a front view of the same. figure,
Figure 9 is a front view of the settling tank, Figure 10 is a side view of the same,
Fig. 11 is a plan view of the same, Fig. 12 is a plan view of the liquid tank,
FIG. 13 is a front view of the same, and FIG. 14 is a side view of the same. DESCRIPTION OF SYMBOLS 1...Liquid pipe, 2...Transferred object, 3...Inlet guide tube, 4...Outlet guide tube, 10...Shield nozzle, 11...Shield nozzle body, 12...Inner cylinder, 13...Gas injection Hole, 14... Annular hole group, 1
5... Outer cylinder, 16... Partition wall, 17... Air chamber, 18
... Liquid chamber, 20 ... Liquid supply nozzle, 21 ... Nozzle body, 22 ... Inner cylinder, 23 ... Outer cylinder, 24 ... Liquid spout hole, 25 ... Annular hole group, 30 ... Liquid collection box ,
31... Guide tube, 32... Frame body, 33... Lower opening, 40... Sedimentation tank, 41... Cleaning port, 42...
... Scale discharge pipe, 43 ... Drain pipe, 50 ... Liquid tank, 51 ... Heat exchanger, 52 ... Liquid supply pump, 5
3...Liquid supply pipe, 54...Flow rate adjustment valve.

Claims (1)

[Scope of Claims] 1. A liquid pipe through which a conveyed object is conveyed in the length direction, a shield nozzle disposed at the conveyance inlet/outlet of the liquid tube, a liquid supply nozzle disposed in the middle of the liquid tube, and Each of the liquid recovery boxes is configured with a liquid circulation device connected to the liquid supply nozzle and the liquid recovery box to circulate the liquid to the liquid pipe, and the shield nozzle is connected to the nozzle body in a circumferential direction opening in the nozzle body. A large number of gas injection holes are provided along the line, and the center line of the gas injection holes is inclined toward the inner part of the liquid pipe. What is claimed is: 1. A liquid immersion device for conveyed objects during passage, characterized in that a large number of liquid ejection holes are provided along the immersion device. 2. The liquid circulation device is composed of a sedimentation tank that receives the liquid in the liquid pipe collected by the liquid collection box, and a liquid tank that adjusts the liquid collected from the sedimentation tank to predetermined conditions and sends the liquid to the liquid supply nozzle. A device for immersing conveyed objects in transit according to scope 1.