WO2017057996A1

WO2017057996A1 - Device for removing top dross of plating pot

Info

Publication number: WO2017057996A1
Application number: PCT/KR2016/011075
Authority: WO
Inventors: 김정국
Original assignee: 주식회사 포스코
Priority date: 2015-10-02
Filing date: 2016-10-04
Publication date: 2017-04-06
Also published as: KR101673546B1; JP2018529846A; CN108350553A

Abstract

The present invention provides a device for removing the top dross of a plating pot, the device comprising: an air-supply unit; and an air-spraying unit which is linked to the air-supply unit while being disposed above the melt surface of the plating pot and which comprises a plurality of spray nozzles, and the invention provides the advantage that the top dross of the plating pot can be removed in stable fashion without degradation damage or driving impairment even in a high-temperature environment.

Description

Upper dross removal device of plating port

The present invention relates to an apparatus for removing an upper dross of a plating port, and more particularly, to remove an upper dross of a plating port, which automatically removes a dross existing in a floating state on a hot surface of a plating port in a continuous hot dip galvanizing process. Relates to a device.

The steel sheet is plated through the molten zinc of the plating port in a state in which the steel sheet is continuously heat-treated in a heating furnace and maintained at an appropriate temperature to remove residual stress. The steel sheet passes through the sink roll and the stabilizing roll provided in the plating port, and then passes through an air knife disposed on the plating port. The plating amount of the steel sheet is adjusted to the desired plating amount through air knife.

When the steel sheet passes through the air knife, not only zinc is blown by the oxidizing action of the high pressure gas injected from the air knife and the hot dip galvanized layer attached to the surface of the steel plate, but also an upper dross formed of zinc oxide on the hot water surface of the plating port. When the upper dross is attached to the surface of the steel sheet to be transported, it is very important to efficiently remove the upper dross because it causes surface defects such as drossing.

Republic of Korea Patent Publication No. 2014-0084778 (2014.07.07, hereinafter referred to as the document) discloses a device for automatically removing the upper dross.

The upper dross removal apparatus of this document is installed in the frame of the plating port to automatically remove the upper dross by pushing and collecting the upper dross. However, this upper dross removal device has a problem in that the upper dross removal operation is limited due to the narrow space between the snout and the air knife.

In addition, a method of removing the upper dross using a magnetic wheel has been proposed. The upper dross removing device including the magnetic wheel is a device for collecting or moving the upper dross floating on the molten surface of the plating port through the magnetic force generated when the magnetic wheel is rotated.

However, such an upper dross removing apparatus has a high risk of malfunction or breakage due to deterioration damage of the motor and the control module. This is because the upper surface of the molten metal of the plating port where the upper dross removing device is installed is a high temperature of 450 ° C or higher. Failure to effectively remove the upper dross in the plating port may result in a dross between the steel sheet and the sink roll or re-adhesion to the surface of the steel sheet to cause defects in the plating surface.

In order to prevent this, a cooling device of the motor and the control module is required separately. In consideration of the narrow space around the plating port, this is a very inefficient configuration and a problem of complicated equipment occurs.

Accordingly, an object of the present invention is to provide an upper dross removal apparatus of a plating port that can automatically remove the upper dross of the plating port without passing the operator's hand.

In particular, it is an object of the present invention to provide an upper dross removal apparatus of a plating port that can prevent deterioration damage and driving failure even in a high temperature environment of the plating port.

In addition, it is an object of the present invention to provide an upper dross removal device of the plating port that can implement a cooling configuration without a separate cooling device.

The problem to be solved by the present invention is not limited to the above-mentioned problem and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

The present invention for achieving the above object, the upper dross removal apparatus of the plating port including an air supply unit, and connected to the air supply and disposed on the molten surface of the plating port, including an air injection unit comprising a plurality of injection nozzles Can provide.

Preferably, the plurality of injection nozzles may be arranged vertically and horizontally.

Preferably, the air injection unit may include an injection plate connected to the air supply unit and in which the injection nozzle is formed.

Preferably, the injection nozzle may include a transfer nozzle and a collecting nozzle, and the collecting nozzle may be disposed outside the transfer nozzle disposed on the outermost side of the transfer nozzles based on the transverse direction.

Preferably, the collection nozzle may increase the cross-sectional area in the spraying direction.

Preferably, the transfer nozzle includes an injection port and injection slits, the cross-sectional area of the injection slits may be formed larger than one of the injection holes.

Preferably, the injection slit may be disposed below the injection hole located at the lowermost end with respect to the height direction of the plating port of the plurality of injection holes.

Preferably, the cross-sectional area of the collection nozzle may be formed larger than the cross-sectional area of the injection port.

Preferably, the collection nozzle may be formed such that the injection direction is toward the center of the injection plate on the basis of the transverse direction.

Preferably, the inner wall of the collecting nozzle may be formed to be inclined toward the center of the jet plate with respect to the reference line facing forward.

Preferably, the jet plate may include a partition plate installed therein and having a plurality of split holes.

Preferably, the apparatus may further include a moving unit connected to the air injection unit to move the air injection unit.

Preferably, the moving part may include a support disposed on the plating port, a transfer cart movably coupled to the support, and a driving unit installed on the transfer cart so as to transmit power to the support.

Preferably, the jet plate can be tiltably coupled to the transfer cart.

Preferably, the transfer bogie is formed with a slot, the injection plate is disposed below the transfer bogie, the injection plate comprises a lever formed in the upper through the slot, the transfer bogie, the upper surface It may include a tilting driving unit which is disposed in and connected to the lever to reciprocate.

Preferably, the tilting driving part may include a rail formed in the second direction on the upper surface of the transport cart and a tilting angle changing cart provided with a lever connection part slidably coupled to the rail and inserted into the lever. .

Preferably, the driving unit includes a motor and a rack gear coupled to the rotating shaft of the motor, a motor case including the motor therein, and a motor support for supporting the motor case, wherein the support is in the second direction. It may be formed along the rack bar to be engaged with the rack.

Preferably. The motor support may be coupled to the tilting angle change trolley.

Preferably, the motor case may form a cooling space therein, and the cooling space may communicate with an inside of the air supply part and the jet plate.

Preferably, the lever may include an air flow path formed therein to communicate with the cooling space of the motor case and the injection plate.

According to one embodiment of the invention, it is configured to remove the upper dross of the plating port through the high pressure air supplied through the plurality of injection nozzles, even in high temperature environment stably the top of the plating port without deterioration damage or drive failure Provides a beneficial effect of removing dross

In addition, according to one embodiment of the present invention, by arranging a plurality of injection nozzles are arranged to uniformly eject the high pressure air, it provides an advantageous effect that can effectively capture or move the upper dross.

In addition, according to an embodiment of the present invention, by providing a split plate formed with a split nozzle inside the jet plate, by separating the air flow rate for moving the upper dross and the air flow rate for collecting the upper dross, Provides an advantageous effect of maximizing use.

In addition, according to an embodiment of the present invention, by forming the injection nozzle separately from the transfer nozzle and the collecting nozzle, the air flow rate of the collecting nozzle is larger than the air flow rate of the transfer nozzle and at the same time by placing the collecting nozzle outside the transfer nozzle This provides an advantageous effect of collecting and transporting the upper dross more effectively.

1 is a view showing an upper dross removing apparatus of a plating port according to an embodiment of the present invention;

2 is a view showing a jet plate of the air injection unit shown in FIG.

3 is an exploded view of the jet plate,

4 is a view showing a spray nozzle,

5 is a view showing the flow of air in the interior of the jet plate,

6 is a view showing the flow of air below the jet plate,

7 is a view showing a flow of air discharged to the front and rear of the jet plate,

8 is a view illustrating a flow of air discharged from a transfer nozzle and a collecting nozzle, respectively;

9 is a view showing the shape of the front and rear of the jet plate,

10 is a view showing a state of collecting and moving the upper dross,

11 shows a lever;

12 is a view showing a moving unit,

FIG. 13 is a view illustrating an upper dross removing apparatus of a plating port to which air is supplied before moving; FIG.

14 is a view illustrating a state in which the jet plate is tilted after air supply;

15 is a view showing a state of the air injection before the tilting,

FIG. 16 is a view illustrating a state in which the air injection unit is tilted by moving the moving unit forward, and FIG. 17 is a view illustrating a state in which the air injection unit is tilted by moving the moving unit backward;

18 is a view showing a state in which the air injection unit is moved by moving the moving unit;

19, there is shown another embodiment of the moving unit,

20 is a diagram comparing embodiments of the moving unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. And the terms or words used in this specification and claims should not be construed as being limited to the ordinary or dictionary meanings, the inventors properly define the concept of terms in order to best explain their invention in the best way Based on the principle that it can be, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. In describing the present invention, detailed descriptions of related well-known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

Terms including ordinal numbers, such as second and first, may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.

1 is a view showing the upper dross removal apparatus of the plating port according to an embodiment of the present invention. As such, FIG. 1 clearly shows only the main features in order to conceptually clearly understand the present invention, and as a result, various modifications of the drawings are expected, and the scope of the present invention needs to be limited by the specific shapes shown in the drawings. There is no.

Referring to FIG. 1, an upper dross removing apparatus of a plating port according to an exemplary embodiment of the present invention may include an air supply unit 100, an air injection unit 200, and a moving unit 300.

The upper dross removing device of the plating port may be installed on the upper portion of the plating port. The high-temperature environment around the plating port is 460 ° C, and the operator is exposed to a very dangerous working environment, and in fact, safety accidents can occur frequently, so the upper dross removal device can easily remove the upper dross. Can be.

The air supply unit 100 provides the high pressure air for removing the upper dross to the air injection unit 200. The air injection unit 200 injects air supplied from the air supply unit 100 to the molten surface of the plating port. The moving unit 300 adjusts the injection position of air for collecting and moving the upper dross by moving the air injection unit 200.

2 is a view showing the jet plate of the air injection unit shown in Figure 1, Figure 3 is an exploded view of the jet plate, Figure 4 is a view showing the injection nozzle.

1 to 3, the air injection unit 200 may include a jet plate 220 on which a jet nozzle 210 is formed.

Referring to FIG. 4, a plurality of injection nozzles 210 may be formed. In addition, the plurality of injection nozzles 210 may be arranged in a horizontal direction. Here, the transverse direction may correspond to the width direction (y-axis direction) of the plating port. In addition, the plurality of injection nozzles 210 may be aligned in the longitudinal direction. Here, the longitudinal direction may correspond to the height direction (z-axis direction) of the plating port.

Since the plurality of injection nozzles 210 are distributed in the width direction (y axis direction) and the height direction (z axis direction) of the plating port, the air injection part 200 can uniformly inject air onto the molten surface. Do.

In particular, the injection nozzle 210 may include a transfer nozzle 211 and the collecting nozzle (212).

The transfer nozzle 211 implements an air flow for transferring the upper dross and may be formed over the front surface 221 and the rear surface 222 of the jet plate 220. Specifically, the transfer nozzle 211 may be divided into a circular injection port 211a and a long injection type injection slit 211b. The portion where the circular injection holes 211a are formed may be implemented in the form of a porous plate through which air is finely discharged.

An elongated jetting slit 211b may be formed at a lower portion of the front surface 221 of the jetting plate 220 to induce a flow of air to push the upper dross floating on the molten surface. The cross-sectional area of the injection slit 211b for determining the discharge flow rate of air may be larger than the cross-sectional area of one injection hole 211a.

The collecting nozzle 212 may be disposed outside the transfer nozzle 211 disposed at the outermost side of the plurality of transfer nozzles 211 based on the lateral direction (y-axis direction of FIG. 4). That is, the collecting nozzle 212 may be formed at both sides of the front surface 221 and the rear surface 222 of the injection plate 220. And the collecting nozzle 212 may be implemented in the form of a long hole slit long in the longitudinal direction.

Therefore, the air flow rate of the collecting nozzle 212 is relatively much larger than the air flow rate of the transfer nozzle 211 near both sides of the front surface 221 of the injection plate 220.

Referring to Figure 3, the jet plate 220 may be implemented in the form of a cube having a certain width and height. The injection plate 220 may be implemented in a form in which the inside is empty, and may be implemented in an open form.

The jet plate 220 may include a divider 230 therein. The injection plate 220 may be implemented in a form in which the inside is empty, and may be implemented in an open form. The partition plate 230 may be installed in the injection plate 220 through the open upper portion of the injection plate 220.

The partition plate 230 may also be embodied in a form in which the inside is empty, and may be implemented in an open form. An open top of the divider 230 may be covered by a cover 232. The first air inlet 233 may be formed in the cover 232. In addition, a plurality of splitters 231 may be formed in the splitter 230. The splitter 231 may also be arranged in a horizontal direction (y-axis direction in FIG. 4), which is the width direction of the plating port, and in a longitudinal direction, in a height direction (z-axis direction, in FIG. 4) of the plating port. Air introduced into the air inlet 233 of the cover 232 is discharged through the splitter 231.

The dividing port 231 uniformly distributes the supplied air to the transfer nozzle 211, and divides the air guided in the direction of the transfer nozzle 211 and the air guided in the direction of the collecting nozzle 212 to effectively supply the air. Cause use.

Referring to FIG. 3, the open upper portion of the jet plate 220 is covered by the coupling of the connection part 240. The connection part 240 serves to connect the upper part of the jet plate 220 and the moving part 300 to be tiltable.

The connection part 240 may have a second air inlet 241 communicating with the inside of the jet plate 220. The lever 250 may be coupled to an upper portion of the connection portion 240. Meanwhile, tilting rings 242 may be formed at both side surfaces of the upper part of the connection part 240. The tilting ring 242 serves to connect the jet plate 220 and the moving part 300.

5 is a view showing the flow of air in the injection plate.

Referring to FIG. 5, the air introduced into the injection plate 220 may form three flows.

First, some of the air introduced into the injection plate 220 flows into the first air inlet 233 and enters into the divider 230. Air A1 entered into the splitter 230 is discharged through the splitter 231 to face the transfer nozzle (211 of FIG. 4) of the splitter plate 220.

Second, some of the air introduced into the injection plate 220 is introduced between the outer wall of both sides of the partition plate 230 and the inner wall of both sides of the injection plate 220, and the air A2 introduced therein is injected into the injection plate. A collection nozzle (212 of FIG. 4) of 220 is directed.

6 is a view showing the flow of air below the jet plate.

Third, referring to FIGS. 5 and 6, some of the air introduced between the outer wall on both sides of the partition plate 230 and the inner wall on both sides of the jet plate 220 may be disposed on the lower outer wall and jet plate 220 of the partition plate 230. Inflow between the lower inner wall of the). The air A3 introduced therein is directed to the injection slit 211b of the transfer nozzle 211 of FIG. 4.

7 is a view showing a flow of air discharged to the front and rear of the jet plate.

Referring to FIG. 7, the air A1 introduced into the splitter plate 230 among the air introduced into the jet plate 220 is discharged to the front and rear of the jet plate 220. In addition, the air A2 which is not introduced into the splitter plate 230 among the air introduced into the jetting plate 220 is also discharged to the front and rear of the jetting plate 220.

8 is a view illustrating a flow of air discharged from the transfer nozzle and the collecting nozzle, respectively.

Referring to FIG. 8, there is a difference in the flow rate of air discharged from the jet plate 220 in the transverse direction (y-axis direction of FIG. 4) corresponding to the width direction of the plating port.

The air A1 injected from the transfer nozzle (211 of FIG. 4) located at the center of the jet plate 220 in the central direction is uniformly discharged to a relatively large area to serve to push the upper dross.

On the other hand, the air A2 injected from the collecting nozzles (212 of FIG. 4) positioned at both sides of the jet plate 220 in the lateral direction is discharged at a large flow rate in a relatively small area to discharge the upper dross to the jet plate. It serves to capture the center of the 220.

9 is a view showing the shape of the front surface and the back surface of the jet plate.

Referring to FIG. 9, when the front surface 221 and the rear surface 222 of the jet plate 220 refer to the reference line H connecting the edge portions of both sides of the jet plate 220, the jet plate 220 may be used. It may be formed to move away from the reference line (H) toward the central portion of the injection plate 220 in the edge portion of both sides of the. In detail, the front surface 221 and the rear surface 222 of the jet plate 220 may be formed concavely curved. This is because the upper dross blows the upper dross through the air A2 sprayed from the collecting nozzles (212 of FIG. 4) positioned on both sides of the jet plate 220 in the transverse direction (y-axis direction of FIG. 4). To effectively collect into the center of the

10 is a view illustrating a state in which the upper dross is collected and moved.

Referring to FIG. 10, the air A1 discharged to the transfer nozzle 212 of FIG. 4 pushes the upper dross D in the direction of the arrow of FIG. 10. In addition, the air A2 discharged to the collecting nozzles 212 of FIG. 4 located at both sides of the jetting plate 220 pushes the upper dross D toward the center of the jetting plate 220 to collect the air.

The collecting nozzle 212 of FIG. 10 may be formed such that the cross-sectional area increases in the direction in which air is injected. In addition, the collecting nozzle (212 of FIG. 10) may be inclined so that the jetting direction of the air is directed toward the center of the jetting plate 220 where the transfer nozzle (212 of FIG. 4) is located.

For example, when the reference line formed in the moving direction of the moving part 300 is CL of FIG. 10, the inner wall 212a of the collecting nozzle 212 of FIG. 10 has a predetermined angle R at CL of FIG. 10. It may be formed to be inclined to.

The configuration of the collecting nozzle 212 of FIG. 10 is to guide the injection direction of air A2 toward the center of the jet plate 220 to easily collect the upper dross D.

11 is a view showing the lever.

3 and 11, the lever 250 serves to convert the linear motion of the moving part 300 into the rotational motion of the air injection part 200 for tilting. The lever 250 may be coupled to the connection portion 240 of the jet plate 220. The lever 250 may be connected to the air supply unit 100 at an upper portion thereof, and an air injection hole 251 may be formed to introduce air. An air flow path 252 communicating with the air injection hole 251 may be formed inside the lever 250. The air flow path 252 communicates with the interior of the connection part 240 and the internal space of the jet plate 220 when the lever 250 is coupled to the connection part 240.

Lever 250 may include an elongated slot 253. The lever connection pin 334a of the moving unit 300 may be inserted into the slot 253.

FIG. 12 is a view showing a moving part, and FIG. 13 is a view showing an upper dross removing apparatus of a plating port to which air is supplied before moving.

12 and 13, the moving unit 300 may include a support 310, a transport cart 320, and a driver 330.

The support 310 may be disposed long along the width direction or the length direction of the plating port. The rack bar 311 may be installed on the side of the support 310. And a transport rail 312 may be formed below the side of the support (310). The cable tray 313 may be formed on an upper surface of the support 310.

The transport cart 320 is movably coupled to the support 310. The transport cart 320 may be formed in a plate shape so that one side thereof may be coupled to the transport rail 312 of the moving part 300. Accordingly, when the driving unit 330 is operated, the transport cart 320 is moved along the support 310.

The tilting driving part 321 may be installed in the transport cart 320. The tilting driver 321 may include a rail 321a, a tilting angle change cart 321b, and a stopper 321c. The rail 321a may be formed long in the longitudinal direction of the support 310 on the upper surface of the transport cart 320. The tilting angle change trolley 321b is coupled to the rail 321a to make a linear motion. Stoppers 321c are installed at both ends of the rail 321a to limit the displacement of the tilting angle change trolley 321b.

The transport cart 320 may have a slot 322 along the longitudinal direction of the support 310. The lever 250 of the air injection unit 200 passes through the slot 322 below the transport trolley 320 and is positioned above the transport trolley 320. The length of the slot 322 may be appropriately designed in consideration of the rotation range of the lever 250.

A tilting shaft 323 may be provided on the side of the feed cart 320. The air injection unit 200 is tiltably coupled to the bottom of the transport cart 320, and the tilting shaft 323 serves to connect the transport cart 320 and the air injection unit 200 to be tiltable.

Specifically, the connecting portion 240 is coupled to the upper portion of the injection plate 220 is formed with a connection ring (242 of Figure 2), by connecting the connection ring 242 and the tilting shaft 323 rotatably, injection The plate 220 and the transport cart 320 are coupled.

The driving unit 330 provides a driving force to the transport cart 320, and is connected to the lever 250 to transfer air supplied from the air supply unit 100 to the jet plate 220.

The driving unit 330 may include a motor 331, a rack gear 332, a motor case 333, and a motor support 334.

The rack gear 332 may be coupled to the rotating shaft of the motor 331. The rack gear 332 is engaged with the rack bar 311 formed in the support 310. The motor 331 may be located inside the motor case 333. The rack gear 332 may be located outside the motor case 333.

A cooling space for cooling the motor 331 may be provided between the motor case 333 and the motor 331. The motor case 333 may be provided with an inlet 331a and an outlet 331b communicating with the cooling space. The inlet 331a is connected to the air supply unit 100 to receive air. The outlet 331b is connected to the air inlet 251 of the lever 250.

Air supplied from the air supply unit 100 is introduced into the motor case 333 via the inlet 331a. Air introduced into the motor case 333 is primarily used as a refrigerant for cooling the motor 331 in the cooling space. Air heat-exchanged with the motor 331 is supplied to the injection plate 220 through the lever 250 through the outlet 331b. The air supplied to the jet plate 220 is used as a working fluid for collecting and moving the upper dross (D) secondary.

Since air for capturing and moving the upper dross D is used as the refrigerant of the motor 331 before reaching the injection plate 220, a separate cooling device for cooling the motor 331 is provided. There is no need.

The motor support 334 is connected to the motor case 333. Therefore, the motor support 334 moves together with the motor case 333. The motor support 334 is mounted on the transport cart 320. As a result, when the motor 331 is operated to move the rack gear 332 along the rack bar 311, the motor support 334 also moves in conjunction with this, and the tilting angle change trolley 321b is also the rail 321a. Move along.

Meanwhile, the lever connecting pin 334a may protrude from the motor support 334. The lever connecting pin 334a is fitted to the slot 253 of the lever 250 protruding through the slot 322 of the transport cart 320.

Therefore, when the motor support 334 moves in the second direction, the lever connecting pin 334a also moves along the slot 253 and the lever 250 rotates. When the lever 250 is rotated, the jet plate 220 is tilted.

Referring to FIG. 13, when air is supplied to the air injection unit 300 through a cable 110 connected to the air supply unit 100, air A2 for collection is injected from both sides of the injection plate 220. In addition, air A3 for movement may be injected under the jet plate 220.

14 is a view illustrating a state in which the jet plate is tilted after air supply.

Referring to FIG. 14, when the motor 331 is operated, the rack gear 332 moves along the rack bar 311, and the motor support 334 also moves in the second direction, and the tilting angle change cart 321b. Also moves along the rail 321a. As the tilting angle change cart 321b moves, the lever 250 connected to the lever connecting pin 334a is rotated, and the spray plate 220 is centered on the tilting shaft 323 in conjunction with the rotation of the lever 250. Will tilt.

15 is a view illustrating a state of the air injection unit before tilting, and FIG. 16 is a view illustrating a state in which the air injection unit is tilted by moving the moving unit forward, and FIG. 17 is a view of the air injection unit tilting by moving the moving unit rearward. It is a figure which shows the state.

Referring to FIG. 15, when the motor 331 is not operated, when the reference line formed in the height direction of the plating port is CL of FIG. 15, the spray direction of the spray plate 220 is formed perpendicular to the CL of FIG. 15. do.

Referring to FIG. 16, when the motor 331 operates, the motor support 334 moves forward, and the tilting angle change cart 321b also moves along the rail 321a. As the tilting angle change cart 321b moves forward, the lever 250 connected to the lever connecting pin 334a rotates counterclockwise, and the spray plate 220 tilts in conjunction with the rotation of the lever 250. Tilt about the axis 323.

At this time, when the injection direction of the injection plate 220 is a reference line formed in the height direction of the plating port is CL of FIG. 16, the injection direction of the injection plate 220 is inclined to the CL of FIG. 16 by a predetermined angle R1. It faces the molten metal.

Referring to FIG. 17, on the contrary, when the motor 331 is operated to move the motor support 334 to the rear, the lever 250 connected to the lever connecting pin 334a is moved as the tilting angle change cart 321b moves to the rear. ) Rotates in a clockwise direction, and in conjunction with the rotation of the lever 250, the jet plate 220 tilts about the tilting shaft 323.

At this time, when the injection direction of the injection plate 220 is a reference line formed in the height direction of the plating port is CL of FIG. 17, the injection direction of the injection plate 220 is inclined to the CL of FIG. 17 by a predetermined angle R2. It faces the molten metal.

18 is a view illustrating a state in which the air injection unit is moved while the movement of the moving unit is continued.

Referring to FIG. 18, after the jet plate 220 is tilted, when the movement of the lever 250 is stopped, when the motor 331 is operated and the movement of the motor support 334 continues, the feed cart 320 may be used. ) Moves along the transfer rail 312 of the support 310, the injection plate 220 is moved.

19 is a view showing another embodiment of the moving unit, Figure 20 is a view comparing the embodiments of the moving unit.

As shown in (a) of FIG. 20, the slot 322 formed in the transport cart 320 is not positioned between the support 310 and the rail 321a in the transverse direction, and FIGS. 19 and 20 (b). As shown in), the slot 322 formed in the transport cart 320 may not be located between the support 310 and the rail 321a based on the transverse direction, and may be formed on the opposite side of the rail 321a. have. In addition, the lever connecting pin 334a may be formed on the tilting angle change cart 321b.

In addition, the lever 250 may be formed to face the side of the jet plate 220 based on the transverse direction.

The above has been described in detail with reference to the accompanying drawings with respect to the upper dross removing device of the plating port according to an embodiment of the present invention.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions may be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

100: air supply part, 200: air injection part, 210: injection nozzle, 211: transfer nozzle, 211a: injection nozzle, 211b: injection slit, 212: collecting nozzle, 220: injection plate, 230: divider plate, 231: dividing hole, 232: cover, 233: first air inlet, 240: connecting portion, 241: second air inlet, 242: tilting ring, 250: lever, 251: air inlet, 252: air flow path, 300: moving part, 310: support, 311: rack bar, 312: feed rail, 313: cable tray, 320: feed cart, 321: tilting drive part, 321a: rail, 321b: tilting angle change bogie, 321c: stopper, 322: slot, 323: tilting axis, 330: Drive unit, 331: motor, 332: rack gear, 333: motor case, 334: motor support

Claims

Air supply unit;

An air injection unit connected to the air supply unit and disposed on the molten surface of the plating port, the air injection unit including a plurality of injection nozzles;

Upper dross removal device of the plating port comprising a.
The method of claim 1,

A plurality of the injection nozzle is the upper dross removing apparatus of the plating port arranged in the vertical and horizontal alignment.
The method of claim 1,

And the air injection unit is connected to the air supply unit and includes an injection plate on which the injection nozzle is formed.
The method of claim 3, wherein

The injection nozzle includes a transfer nozzle and a collecting nozzle, the collecting nozzle is an upper dross removal apparatus of the plating port disposed on the outer side of the transfer nozzle disposed on the outermost side of the transfer nozzle on the basis of the transverse direction.
The method of claim 4, wherein

The collection nozzle is an upper dross removal apparatus of the plating port is increased in the cross-sectional direction in the spray direction.
The method of claim 4, wherein

The transfer nozzle includes an injection port and the injection slit, the cross-sectional area of the injection slit the upper dross removal apparatus of the plating port is formed larger than the one injection port.
The method of claim 6,

The injection slit is an upper dross removing apparatus of the plating port is disposed below the injection port located at the lowest end of the plurality of the injection port with respect to the height direction of the plating port.
The method of claim 6,

Cross-section of the collecting nozzle is the upper dross removing apparatus of the plating port is formed larger than the cross-sectional area of the injection port.
The method of claim 8,

The collection nozzle is an upper dross removal apparatus of the plating port is formed so that the spray direction toward the center of the jet plate on the basis of the transverse direction.
The method of claim 9,

The inner wall of the collecting nozzle is an upper dross removal apparatus of the plating port is formed to be inclined toward the center of the jet plate with respect to the forward reference line.
The method of claim 3, wherein

The spray plate is installed inside the upper dross removing apparatus of the plating port including a partition plate formed with a plurality of partitions.
The method of claim 11, wherein

The upper dross removing apparatus of the plating port further comprises a moving part connected to the air injection unit to move the air injection unit.
The method of claim 12,

The moving unit,

A support disposed on the plating port;

A transfer cart movably coupled to the support; and

A driving unit installed in the transport cart to be coupled to the support so as to transmit power;

Upper dross removal device of the plating port comprising a.
The method of claim 13,

The jet plate is an upper drop removal apparatus of the plating port to be tiltably coupled to the transfer cart.
The method of claim 14,

The transport cart is formed with a slot, the jet plate is disposed below the transport cart,

The jet plate includes a lever formed at an upper portion and penetrating the slot,

The transfer trolley, the upper dross removal apparatus of the plating port including a tilting driving portion which is disposed on the upper surface and connected to the lever to reciprocate.
The method of claim 15,

The tilting drive unit,

A rail formed in the second direction on an upper surface of the transport cart;

Tilting angle change cart slidably coupled to the rail and the lever connecting portion is inserted into the lever

Upper dross removal device of the plating port comprising a.
The method of claim 16,

The drive unit includes a motor and a rack gear coupled to the rotating shaft of the motor, a motor case including the motor therein, and a motor support for supporting the motor case,

The support is formed in the second direction of the upper dross removing apparatus of the plating port including a rack bar to be engaged with the rack.
The method of claim 17,

The motor support is the upper dross removal apparatus of the plating port coupled to the tilting angle change trolley.
The method of claim 17,

The motor case forms a cooling space therein, the cooling space is the upper dross removing apparatus of the plating port is in communication with the inside of the air supply and the injection plate.
The method of claim 19,

The lever is formed inside the upper dross removing apparatus of the plating port including an air flow path communicating with the cooling space of the motor case and the injection plate.