KR100900677B1 - An apparatus for cleaning a strip - Google Patents

Abstract

Provided is a steel plate cleaning apparatus for removing rolling oil and various foreign matters on the surface of a steel sheet after rolling of a cold rolled steel sheet in a cold rolling mill of a steel mill and before annealing.

The steel sheet cleaning apparatus includes a tank into which a rolled steel sheet enters; and a brush roll installed to remove foreign substances from the surface of the steel sheet in the tank; and an operation cam installed on the brush roll shaft protruding outside the tank. An actuating arm connected between the cam and a piston provided on the outer side of the tank on the opposite side, and having an inclined rack portion integrally formed on the upper and lower sides; And a variable nozzle head integrally formed at both ends of the gear part engaged with the inclined rack portion of the operation arm and disposed above and below the steel plate in the tank, and having a plurality of injection nozzles installed in the circumference and the longitudinal direction; And a guide block that is connected to a spring that is elastically supported by the tank outer side shaft portion of the nozzle head and is inserted into and supported in a guide groove formed in the operation arm in the center thereof, the guide block being vertically fixed to the outside of the tank. On the other hand, a drive motor is connected to the shaft of the brush roll provided with the actuating cam, the actuating cam rotates when the motor is driven, and the actuating arm is configured to linearly move, and the nozzle head is composed of a cylindrical body and the gears at both ends thereof. It is formed integrally along the circumference and the nozzle head gear portion is in close contact with the inclined rack portion of the operating arm is configured to be able to change the height and height of the nozzle head when the operating arm moves.

According to the present invention, the cleaning liquid, such as the washing water sprayed from the injection nozzle of the nozzle head is sprayed while the height and spray width (angle) is continuously changed at the top and bottom of the steel sheet to provide an effect of improving the cleaning power of the steel sheet will be.

Rolled steel sheet, steel sheet cleaning, cleaning equipment, rolling oil, foreign substances, cleaning power

Description

Steel cleaning device with variable cleaning liquid spray height and width {AN APPARATUS FOR CLEANING A STRIP}             

1 is a schematic view showing a conventional rolled steel sheet cleaning apparatus

Figure 2 is a perspective view showing a steel plate cleaning apparatus is variable washing height and width according to the present invention

Figure 3 is a front structural diagram showing a variable operation of the nozzle head in the present invention steel plate cleaning device

Figure 4 is a perspective view of the main portion showing the nozzle head variable means in the present invention steel plate cleaning device

Explanation of symbols on the main parts of the drawings

1 .... steel plate cleaning equipment 10 .... tank

20 .... Brush Roll 30 .... Operation Cam

`40 .... piston 50 .... working arm

52 .... Inclined rack section 54 .... Guide groove

56 .. Connections 58 .... Pressure plate

60 .... Nozzle Head 62 .... Gear                 

64 .. Injection nozzle 70 .... Guide block

72 ... spring 74 ... guide

76 .... Fixed cap 78 .... Bearing

The present invention relates to a steel plate cleaning device for removing the rolling oil and various foreign matters on the surface of the steel sheet after rolling of the cold rolled steel sheet in the cold rolling mill of the steel mill, before the annealing, and more specifically, the injection nozzle head installed in the tank By varying the height of the nozzle and rotating it, the cleaning liquid such as the washing water sprayed from the nozzle of the nozzle head is continuously sprayed while the spray height and spray width (angle) are continuously changed from the upper and lower sides of the steel sheet to improve the cleaning power of the rolled steel sheet. The present invention relates to a steel plate cleaning apparatus in which the cleaning liquid spraying height and width are further improved.

In general, since rolling oil and other foreign matter are attached to the surface of the steel sheet rolled in the cold rolling mill of the steel mill, before the annealing of the rolled steel sheet, the rolling oil and the foreign substances on the surface of the steel sheet are first cleaned. The conventional cleaning operation is shown in FIG.

That is, as shown in FIG. 1, first, the cleaning operation of the rolled steel sheet is primarily performed by spraying an alkali solution onto the surface of the steel sheet, and then cleaning the surface with a brush roll, and finally washing water with the surface of the steel sheet (S). It consists of a washing step to spray on, for this purpose, the nozzle for spraying the alkaline injection nozzle head 110 and the brush roll 120 and the washing water in which the nozzle 112 is sequentially installed from one side to the Buddha in the cleaning tank 100 ( 132 is provided with a washing water spray nozzle head 130 is installed.

At this time, each of the nozzle heads 110 and 130 is connected to supply pipes 114 and 134 for supplying alkaline solution and washing water, and the tank 100 is drain pipe for draining the alkaline solution and the washing water. 140 is connected, such a drain pipe 140, although not shown in the figure, is connected to the post-treatment process.

Therefore, the steel sheet (S) entering the tank 100 is primarily sprayed on the upper and lower surfaces of the alkaline solution to remove oil components such as rolling oil, and then brushed to remove foreign matters, finally, the washing water The spraying is completed to clean the steel sheet.

However, as shown in Figure 1, the nozzle head 130 for washing water spray used in the conventional steel sheet cleaning operation is fixed to the upper and lower sides of the steel sheet (S) that proceeds in the tank 100, The spraying strength of the washing water sprayed on (S) and its spraying width (angle) are always constant, which means that the rolling flow rate adhered to the surface of the steel sheet depends on the conditions of the steel sheet being cleaned, that is, the rolling process time. In spite of being different, since the strength and spray width of the sprayed water are constant, the surface of the steel sheet is not completely cleaned during the spraying of the wash water, which is the final stage of the steel sheet cleaning operation. Or other foreign matter will remain.                         

Accordingly, such residues on the surface of the steel sheet not only have a poor surface coating in a process such as insulation coating, which is a post-manufacturing process of the steel sheet, but also contaminate the equipment inside the annealing furnace during annealing and convex marks on the surface of the steel sheet passing therethrough. While continuously generating the same surface defects, there was a problem of lowering the quality of the steel sheet as a whole.

The present invention has been made in order to improve the various problems as described above, the object of the present invention, the washing water spray nozzle head for cleaning the surface of the steel sheet during the steel plate cleaning operation to remove the rolling oil and other foreign matter attached to the surface of the rolled steel sheet Cleaning liquid spraying height and width to improve cleaning power of steel sheet by changing the height from the surface of steel sheet and rotating it by itself so that cleaning liquid spraying strength and its spraying width (angle) can be changed. The present invention provides a variable steel plate cleaning apparatus.

In addition, another object of the present invention, by increasing the cleaning power of the steel sheet, the surface degreasing power and foreign matter removal power of the steel sheet is increased to prevent surface defects such as surface marks during the post-annealing and coating process of the steel sheet to improve the product quality of the steel sheet The present invention provides a steel plate cleaning apparatus in which the cleaning liquid spraying height and width are varied.

The present invention as a technical configuration for achieving the above object, the cleaning device for spraying the cleaning liquid to remove the rolled oil and foreign matters attached to the surface of the rolled steel sheet, the tank into which the rolled steel sheet enters; A brush roll installed to remove foreign substances from the surface of the steel plate in the tank; and an operation cam installed on the brush roll shaft protruding to the outside of the tank; and connected between the operation cam and a piston installed on the outside of the tank on the opposite side of the tank. An actuating arm formed integrally with the inclined rack to the side; and a gear part engaged with the inclined rack portion of the actuating arm is integrally formed at both ends and disposed above and below the steel plate in the tank, and a plurality of injection nozzles are installed in the circumferential and longitudinal directions. Variable nozzle heads; And a guide block that is connected to a spring that is elastically supported by the tank outer side shaft portion of the nozzle head and is inserted into and supported in a guide groove formed in the operation arm in the center thereof, the guide block being vertically fixed to the outside of the tank. and,
A drive motor is connected to the shaft portion of the brush roll on which the actuating cam is installed so that the actuating cam rotates when the motor is driven and the actuating arm is configured to linearly move. The nozzle head is formed of a cylindrical body, and the gears are arranged at both ends thereof. According to the present invention, the nozzle head gear unit is integrally formed and adheres to the inclined rack portion of the operation arm to provide a steel plate cleaning device in which the height and the width of the cleaning liquid are changed so that the height and width of the nozzle head are variable and rotatable when the operation arm moves. .

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Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a steel plate cleaning apparatus is variable washing height and width according to the present invention, Figure 3 is a front structural diagram showing a variable operation of the nozzle head in the steel sheet cleaning apparatus of the present invention, Figure 4 is the present invention It is a principal part perspective view which shows a nozzle head variable means in a steel plate cleaning apparatus.                     

In FIG. 2, the overall structure of the steel plate cleaning apparatus 1 of which the present invention is different in the cleaning liquid spraying height and width is shown. The steel plate cleaning apparatus 1 of the present invention is largely a tank 10 and a brush roll 20. And the operation cam 30, the operation arm 50, the nozzle head 60, and the guide block 70, these components 10, 20, 30, 50, 60 ( Looking at them in more detail as follows.

First, the steel sheet cleaning apparatus 1 of the present invention describes an example of the washing water spray nozzle head 60 for spraying the washing liquid, in particular, the washing water, in the present embodiment, but in reality, the other washing liquid such as alkaline solution, for example. It is also possible to spray such as, the apparatus 1 of the present invention is arranged between the rolling line and the annealing line to remove the rolling oil and other foreign matter adhering to the surface of the rolled steel sheet (S), but is not necessarily limited thereto. Rather, it may be disposed anywhere for cleaning the surface of the steel sheet in the production line of the steel sheet.

Next, Figure 2 shows the tank 10 of the steel sheet cleaning device 1 of the present invention, the tank 10 of the present invention, the inlet and outlet of the steel sheet is formed on one side and the other side, the inlet side A guide roll 14 for guiding the transfer of the steel sheet is disposed, and in this embodiment, the nozzle head 16 for spraying an alkaline solution for removing the rolled oil attached to the surface of the other rolled steel sheet S is provided. Although disposed above and below, as described above, the nozzle head 60 of the present invention may be installed for alkaline solution and washing water, respectively.

Next, FIG. 2 shows the brush roll 20 of the steel sheet cleaning apparatus 1 of the present invention. However, the brush roll 20 can be disposed in the tank 10, but in FIG. There is a pair of brush rolls 20 up and down, and the brush roll 20 has a shaft portion 22 protruding out of the tank so that the motor 24 is connected and continuously rotates when cleaning the steel sheet. The brush roll 20 of the present invention provides the driving force of the apparatus 1 of the present invention, as will be described in detail below.

Next, Figure 3 and Figure 3 shows the actuating cam 30 of the present invention steel sheet cleaning device 1, the actuating cam 30 of the present invention is projected to the tank outer side and the motor 24 is connected The center of gravity is eccentrically fixed on the brush roll shaft 22 which is rotationally driven.

At this time, as shown in the main portion of the cross-sectional view of Figure 2, the actuating cam 30 is formed integrally with a circular guide groove 32 to which the actuating arm 50 will be described later, so the actuating cam ( 30) is schematically shown in the drawing, but in practice, the guide grooves 32 are semicircularly formed inside the double grooves, and semicircular openings into which the brush roll shafts 22 are fitted are formed in the center and assembled as bolts. .

Next, Fig. 2 to Fig. 4 shows the operation arm 50 of the steel sheet cleaning apparatus 1 of the present invention, the operation arm 50 of the present invention, on the opposite side to the operation cam 30 It is connected between the piston 40 provided on the outside of the tank, the inclined rack portion 52 is formed integrally on the upper and lower sides of the operation arm (50).

That is, as shown in Figures 3 and 4, one side of the operation arm 50 is integrally integrally connected to the connection piece 56 is inserted into the circular guide groove 32 formed in the operation cam (30) integrally The pressure plate is formed, the other side of the operation arm 30 is inserted into the piston 40 disposed on the opposite side of the operation cam 30 to the outside of the tank 10 and the spring 42 is elastically supported 58 is integrally formed, and when the actuating cam 30 is driven to rotate on the shaft 22 when the brush roll 20 is driven, the spring of the actuating cam 30 and the piston 40 ( 42) With the elastic force, the working arm 50 is configured to linearly move on the outer side of the tank.

On the other hand, the inclined rack portion 52 of the operation arm 50 is formed in a V shape concave in the center portion and both sides convex, between the inclined rack portion 52 of the operation arm 50 and the operation cam (30) The straight portion 52a supported by the guide roll 12 installed on the outer side of the tank 10 is integrally formed so that the linear movement of the working arm 50 is kept constant.

In addition, as shown in FIG. 4, a guide groove 54 in which the guide piece 74 provided in the guide block 70 to be described below is inserted into the center of the operation arm 50 is integrally formed. .

Next, FIG. 2 and FIG. 3 show the nozzle head 60 of the apparatus 1 of the present invention. The nozzle head 60 of the present invention is the inclined rack portion 52 of the operating arm 50. As shown in FIG. Gear parts 62 engaged with each other are integrally formed at both ends and disposed above and below the steel plate in the tank 10, and a plurality of injection nozzles 64 are provided in the circumferential and longitudinal directions.

That is, in the apparatus of the present invention, two pairs of nozzle heads 60 and a gear part 62 are provided in close contact with one operation arm 50. Therefore, although not shown in FIG. It is possible to increase the number of installation of 60, in which a pair of brush rolls 20 and two pairs of nozzle heads 60 are arranged in one unit.

At this time, as shown in Figure 2, the nozzle head 60 is composed of a cylindrical body, the gear portion 62 is integrally formed along the circumference at both ends thereof, and on one side shaft portion 68 of the nozzle head The expansion pipe 68a connected to the supply pipe for supplying the cleaning liquid is connected to enable the rotation of the nozzle head 60. As shown in the drawing, the rotation angle of the nozzle head 60 is within 90 degrees. It will be preferable, as shown in Figure 3, by adjusting the length of the inclined rack portion 52 of the operating arm 50, the rotation width of the nozzle head 60 is integrally formed with the gear portion 62 engaging thereto is simple Will be adjusted.

Therefore, when the operation arm 50 is linearly moved, the nozzle head 60 is tilted and rotated by the inclined rack portion 52 in a state in which both sides 68 are supported by the guide block 70 to be described later. Enjoy the example of the cleaning liquid sprayed through the nozzle 64 installed in the nozzle head 60 while being variable, the washing water in the present invention is to increase the steel sheet cleaning power while being variably sprayed on the upper and lower surfaces of the steel sheet (S), At this time, if the inclination width of the inclined rack portion 52 is adjusted, the height of the nozzle head 60 will be adjusted.

Next, Figs. 2 to 4 show the guide block 70 of the steel plate cleaning apparatus 1 of the present invention. The guide block 70 of the present invention is the tank outer side of the nozzle head 60. The shaft portion 68 is connected to the spring 72 elastically supported inward, the center is provided with a guide piece 74 which is inserted and supported in the guide groove 54 formed in the operation arm 50, and is perpendicular to the outside of the tank It is fixed.                     

That is, as shown in Figures 3 and 4, the guide block 70, the hollow portion 70a, the spring 72 is installed up and down is formed integrally therein, such as of the present invention A fixed cap 76 to which the spring 72 is connected is connected to the shaft portion 68 of the nozzle head 60 supported inside the guide block 70 and the hollow portion 70a of the guide block 70. A bearing 78 disposed therein is installed so that the gear 62 of the nozzle head 60 moves in a straight line movement of the operating arm 50 in a state where the gear 62 of the nozzle head 60 is in close contact with the inclined rack portion 52 of the operating arm 50. The head is configured to be variable in height and rotation.

Referring to the operation of the present invention made in the above configuration in detail as follows.

As shown in Figures 2 to 4, the steel plate cleaning apparatus is variable in the cleaning liquid spraying height and width of the present invention to effectively remove the rolling oil and other foreign substances on the surface of the steel sheet (S) rolled in the cold mill of the steel mill ( 1) is as follows.

First, as shown in FIG. 2, when the steel sheet S enters in the tank 10 of the apparatus 1 through its inlet side while being supported as the guide roll 14, the nozzle head 16 is first. As an alkaline solution sprayed through), the rolling oil on the surface of the steel sheet is removed.

Next, when the drive motor 24 installed in the tank 10 of the present invention device 1 is driven to rotate the brush roll 20 above and below the steel sheet S, the brush roll 20 is formed of a steel sheet ( Remove the sprayed alkaline solution and foreign substances on the surface of S).

At this time, when the shaft 22 of the brush roll 20 is driven to rotate by a motor drive, the operation cam 30 fixed to the shaft 22 is rotated, the operation arm 50 is connected to the connecting piece 56 While the straight portion 52a is supported by the tank shaft guide roll 12 and the center guide piece 54 of the guide block 70 fixed to the tank outside in the state inserted into the center guide groove 54, Linear movement.

Therefore, as shown in FIGS. 3 and 4, the nozzle head 60, in which the gear 62 is in close contact with the inclined rack portion 52 of the operation arm 50, is vertically moved by the shape of the inclined rack portion 52. The washing liquid sprayed through the nozzle 62 installed in the nozzle head 60 while the height thereof is continuously changed in the vertical direction elastically by the spring 72 of the furnace guide block 70, that is, the washing water is As the washing strength is changed based on the steel sheet, the washing angle is also changed, so that the steel sheet washing power, that is, the cleaning power is improved by that much.

At this time, as shown in Figure 4, the shaft portion 68 of the nozzle head 60 is fixed to the bearing block 78, the lower side with respect to the center of the inner hollow portion 70a of the guide block 70 The fixing cap 76 is fixed to the spring 72 disposed on the upper and lower sides so that the shaft 68 of the nozzle head 60 is operated within the hollow portion 70a of the guide block 70. The shaft is rotated by the bearing while moving up and down, thereby enabling height and rotation of the nozzle head.

Accordingly, according to the steel plate cleaning apparatus 1 in which the cleaning liquid injection height and width of the present invention are variable, the strength of the cleaning liquid sprayed from the nozzle head 60 substantially increasing the cleaning power of the steel sheet is variably adjusted on the surface of the steel sheet. By varying the injection width, the surface cleaning power of the steel sheet is improved, which is to improve the quality of the steel sheet, since it is put in a state in which the steel sheet surface defects are removed in the subsequent step of the steel sheet.

As described above, according to the steel plate cleaning apparatus of which the cleaning liquid spraying height and width of the present invention are variable, the washing water spray nozzle head for cleaning the surface of the steel sheet is used during the steel sheet cleaning operation to remove the rolled oil and other foreign substances adhering to the surface of the rolled steel sheet. By varying the height from the surface of the steel sheet, it can rotate itself and the strength and the spraying width (angle) of the washing water sprayed through the spray nozzle can be varied, thereby providing an excellent effect of improving the cleaning power of the steel sheet.

In addition, the surface degreasing force and the foreign matter removal force of the steel sheet is increased to prevent surface defects such as surface marks during the post-annealing and coating process of the steel sheet to provide an effect of improving the product quality of the steel sheet.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (4)

In the cleaning device (1) for injecting a cleaning liquid to remove the rolled oil and foreign matters attached to the surface of the rolled steel sheet, the tank 10 into which the rolled steel sheet (S) enters; and to the tank 10 Brush roll 20 is installed to remove foreign substances on the surface of the steel sheet; and the operation cam 30 installed on the brush roll shaft 22 protruding to the outside of the tank; and the tank opposite to the operation cam 30 to the outside of the tank An operating arm 50 connected between the installed pistons 40 and having an inclined rack portion 52 integrally formed thereon; and a gear portion 62 engaged with the inclined rack portion 52 of the operating arm 50; A variable nozzle head 60 integrally formed at both ends and disposed on upper and lower sides of the steel plate in the tank 10 and provided with a plurality of injection nozzles 64 in the circumferential and longitudinal directions; And a guide that is connected to a spring 72 that is elastically supported inwardly with the tank outer shaft portion 68 of the nozzle head 60 and is inserted and supported by a guide groove 54 formed in the operation arm 50 at the center thereof. A piece 74 is provided and includes a guide block 70 vertically fixed to the outside of the tank. A drive motor 24 is connected to the shaft portion 22 of the brush roll on which the operation cam 30 is installed. When the motor is driven, the operation cam rotates and the operation arm is configured to linearly move. The nozzle head 60 The gear part 62 is integrally formed along the circumference at both ends thereof, and the nozzle head gear part 62 is in close contact with the inclined rack portion 52 of the operating arm 50, and is formed when the operating arm moves. Cleaning device spraying height and width of the cleaning liquid, characterized in that the height of the nozzle head is configured to be variable and rotatable. According to claim 1, One side of the operation arm 50 is integrally formed integrally with the connecting piece 56 is inserted into the circular guide groove 32 formed in the operation cam 30, the operation arm 30 The other side of the steel plate cleaning device is variable cleaning height and width of the cleaning liquid, characterized in that the pressure plate (58) is integrally formed to be elastically supported by the spring (42) inserted into the piston (40). According to claim 1, wherein the inclined rack portion 52 of the operating arm 50 is formed in the concave center portion and both sides convex, between the inclined rack portion 52 of the operating arm 50 and the operating cam 30 The straight portion 52a supported by the guide roll 12 installed on the outside of the tank 10 is integrally formed, and the one head shaft portion 68 is connected to the expansion pipe 68a connected to a supply pipe for supplying a cleaning liquid. The steel plate cleaning apparatus, characterized in that the cleaning liquid injection height and width is variable. According to claim 1, The guide block 70, the hollow portion (70a) in which the spring 72 is installed up and down is integrally formed therein, the nozzle head shaft portion (68) the spring (72) The fixed fixed cap (76) is connected to the fixed steel plate cleaning device, characterized in that the cleaning liquid jet height and width is installed, characterized in that the bearing 78 is disposed in the hollow portion (70a) of the guide block (70).

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