KR101372746B1 - apparatus for removing foreign substance of skid-beam - Google Patents

Abstract

Disclosed is a skid beam debris removal device capable of removing debris deposited on a skid beam inside a high temperature heating furnace.

The debris removal device of the skid beam includes a plate moving through the skid beam in the heating furnace, and a plurality of debris removal units installed on the bottom of the plate and configured to remove debris deposited on the skid beam at a high temperature.

According to the foreign matter removal device of the skid beam, the foreign matter deposited on the skid beam can be removed even inside the high temperature furnace through the cooling medium and the foreign matter removal unit accommodated in the body. Can be improved. In addition, since the foreign matter deposited on the skid beam can be removed even inside the high temperature heating furnace through the cooling medium and the foreign matter removing unit accommodated in the body, the heating furnace operation may not be stopped, thereby improving productivity.

Skid Beam, Scale, Foreign Material, Foreign Material Removal Device, Heating Furnace

Description

Apparatus for removing foreign substance of skid-beam}

The present invention relates to an apparatus for removing foreign substances of a skid beam, and more particularly, to an apparatus for removing foreign substances of a skid beam for removing foreign substances deposited on an upper surface of a skid beam that prevents radiant heat transfer from a lower part of a slab when using a hot rolled reheating facility. It is about.

In general, a heating furnace used in a hot rolling mill, as shown in FIG. 1, the slab 2 charged through the charging hole 3 in the heating furnace 1 is moved through the skid beam 5 and finally, the heating furnace. Extracted to outlet 4. That is, the skid is moved by the skid beam (5) provided in the skid, generally referred to as a metal leg-bearing rack used to carry the load (荷 物).

When the slab 2 is charged in the furnace 1, the slab 2 is heated on the skid button 6 of the skid beam 5, which is spaced apart from each other in a smaller area to reduce the contact area. . That is, the slab 2 is heated mainly by radiant heat transfer by the high temperature flame of the burners 9 and 10 in the heating furnace 1 in the state seated on the skid button 6.

However, in the case of the lower surface of the slab 2, radiation shades are generated when heating from the lower burner 9 by the skid beam 5 and the skid button 6. As a result, a portion having a locally low temperature is produced as compared with the slab portion in which the skid beam 5 and the skid button 6 are not disposed at the lower portion.

This temperature deviation causes problems such as thickness deviation in post-process rolling. In order to prevent this, the skid button 6 is arranged to be spaced at a predetermined interval to promote radiant heat transfer from the surroundings.

However, during heating of the slab 2 a large scale is generated by the ash on the surface of the slab 2, whereby the scale 20, i.e. foreign matter, is deposited on the skid beam 5 between the skid buttons 6, as a result. Regenerate the radiant shade.

Therefore, the temperature difference of the slab 2 is generated by the scale 20, that is, the foreign matter, which causes problems such as thickness deviation in post-process rolling.

An object of the present invention is to provide a foreign matter removal apparatus of the skid beam that can remove the foreign matter deposited on the skid beam inside the high temperature heating furnace.

The debris removal device of the skid beam according to the present invention includes a plate which is moved through the skid beam in the heating furnace, and a plurality of debris removal units installed on the bottom of the plate and configured to remove debris deposited on the skid beam at a high temperature. do.

The foreign material removing unit may include driving means installed on the bottom surface of the plate and driven, and an operating means installed on the driving unit to move forward and backward to remove foreign matter deposited on the skid beam.

The foreign material removing unit includes a main body in which a cooling medium is accommodated, a housing installed in the main body so as to be immersed in the cooling medium accommodated in the main body, and a driving force provided in the housing to generate a driving force. Means, and the operating means is installed in the drive means for moving forward, backward to remove the foreign matter deposited on the skid beam.

The driving means may include a driving source for generating a driving force and a driving member connected to the driving source to transfer the driving force generated from the driving source.

The actuating means may include an actuating member connected to the driving unit so as to be movable forward and backward, and a cleaning member coupled to the actuating member to remove foreign matter deposited on the upper surface of the skid beam.

The foreign material removing unit may further include a first elastic member coupled to one end of the operating means to provide a restoring force so as to easily reverse the operating means.

The actuating means further includes a second elastic member which is installed on the actuating member connected to the actuating means and provided with a cleaning member connected to the actuating member to provide a buffering action by the elastic force when the cleaning member interferes with the skid button installed on the skid beam. can do.

According to the present invention, since the foreign matter deposited on the skid beam can be removed even inside the high temperature heating furnace through the cooling medium and the foreign matter removing unit accommodated in the body, the effect of improving the quality by reducing the temperature deviation of the lower slab. There is.

In addition, since the foreign matter deposited on the skid beam can be removed even inside the high temperature heating furnace through the cooling medium and the foreign matter removing unit accommodated in the body, the heating furnace operation can not be stopped to improve productivity. have.

Hereinafter, an apparatus for removing foreign substances of a skid beam according to the present invention will be described with reference to the drawings.

Figure 2 is a side cross-sectional view showing a foreign matter removal apparatus of the skid beam according to the present invention, Figure 3 is an enlarged cross-sectional view showing a portion 'A' shown in FIG.

2 and 3, the foreign matter removing apparatus 100 of the skid beam includes a plate 120 and a foreign matter removing unit 140.

The plate 120 is formed in the shape of a steel plate, that is, a slab, passing through the heating furnace, and moves in the heating furnace through the skid beam 5. That is, some of the skid beams 5 of the plurality of rows of skid beams 5 are raised to raise the plate 120, move to the exit side of the heating furnace, and then descend to seat the steel plate on the fixed fixed skid beams 5 (5). . Thereafter, the skid beam 5 which moves the plate 120 returns to its original position. By repeating this, the plate 120 moves in the furnace.

In addition, the plate 120 is located on the upper surface of the skid button 6 of the skid beam (5). Therefore, a predetermined space is formed between the plate 120 and the skid beams 5.

The foreign material removal unit 140 is installed on the bottom of the plate 120 to remove foreign matter deposited on the skid beam in a high temperature situation, a plurality of foreign material removal unit 140 is installed on the plate 120.

That is, the foreign matter removing unit 140 is installed on the bottom surface of the plate 120 in the same number as the number of the skid beams 5 installed in the heating furnace. In other words, the number of installation of the foreign matter removing unit 140 is not limited to the number shown in the figure.

The foreign material removing unit 140 includes a main body 142, a housing 144, a driving means 146, an operating means 148, and first and second elastic members 152 and 154.

The main body 142 is formed in a box shape to accommodate the cooling medium 141 therein and is fixedly installed on the bottom of the plate 120. In addition, the through hole 142a is provided so that the operation means 148 protrudes outward.

Meanwhile, the cooling medium 141 accommodated in the main body 142 is evaporated through the through hole 142a while passing through the heating furnace. Therefore, the foreign matter removing unit 140 may maintain a temperature of 100 ° C. or lower by the latent heat required when the cooling medium 141 is evaporated even at a high temperature inside the heating furnace.

In addition, a heat insulating member may be installed on an outer circumferential surface of the main body 142, and may increase the time that the internal temperature of the main body 142 is maintained at 100 ° C. or lower through the heat insulating member.

The housing 144 is fixed to the main body 142 so as to be submerged in the cooling medium 141 accommodated in the main body 142. Therefore, the temperature of the housing 144 can be maintained at 100 degrees Celsius or less. In addition, the housing 144 may be formed in a box shape to form a closed space.

The driving means 146 is installed inside the housing to generate a driving force and transmit it to the operating means 148. The drive means 146 includes a drive source 146a and a drive member 146b.

The drive source 146a is installed to be disposed outside the housing 144 and generates a driving force for operating the operation means 148. The driving source 146a may be a battery driven motor.

The driving member 146b is connected to the driving source 146a to transmit the driving force generated from the driving source 146a to the driving means 148 to move the driving means 148 forward and backward. The driving member 146b may be a cam. Therefore, the operating means 148 connected to the cam is moved back and forth in accordance with the rotation of the cam.

In the above, the case where the driving source 146a and the driving member 146b are a motor and a cam has been described and described. However, the present invention is not limited thereto. For example, the operating means 148 may be moved forward or backward by a motor and a rack gear.

The actuating means 148 is installed in the actuating means 146 and configured to remove the foreign matter deposited on the skid beam 5 by moving forward and backward. The operating means 148 is connected to the driving means 148 and the cleaning member 150 which is connected to the operating member 149 forward and backward and the operating member 149 to remove the foreign matter deposited on the upper surface of the skid beam 5. ).

The actuating member 149 is connected to the first actuating member 149a and the first actuating member 149a, which is mounted on the driving member 146b and moved forward and backward, and is moved in cooperation with the first actuating member 149a. 2 operating members 149b are provided.

The cleaning member 150 is connected to the second operating member 149b and is formed in a curved shape so as to protrude outward through the through hole 142a of the main body 142. As a result, when the second operating member 149b is moved back and forth, the cleaning member 150 is also moved back and forth.

In addition, one end protruding to the outside of the main body 142 of the cleaning member 150 is installed to be disposed in the space formed between the plate 120 and the skid beams 5, the skid beams 5 when moved back and forth Foreign matter deposited on the upper surface of the can be removed.

The first elastic member 152 is disposed between the one end of the second operating member 149b and the housing 144, and is moved backward after the second operating member 149b is advanced by the driving member 146b. In this case, the restoring force is provided to allow the second operating member 149b to be retracted more smoothly.

When the second elastic member 154 is placed between the second operating member 149b and the cleaning member 150, the cleaning member 150 is advanced to contact the skid button 6 of the skid beam 5. It is cushioned by elastic force so that a large load is not applied to the motor.

As described above, since the foreign matter deposited on the skid beam can be removed even inside the high temperature heating furnace through the cooling medium 141 and the foreign matter removing unit 140 accommodated inside the body 142, that is, the lower slab The quality can be improved by reducing the temperature deviation.

In addition, through the cooling medium 141 and the foreign matter removing unit 140 accommodated in the body 142, it is possible to remove foreign matter deposited on the skid beam even inside the high temperature furnace, so that the operation of the heating furnace may not be stopped. There is an effect that can improve the productivity.

1 is a schematic view for explaining the heat treatment of the steel sheet in the heating furnace and the foreign matter deposited on the skid beam.

Figure 2 is a side cross-sectional view showing a foreign matter removing apparatus of the skid beam according to the present invention.

3 is an enlarged cross-sectional view illustrating a portion 'A' illustrated in FIG. 2.

<Explanation of symbols for the main parts of the drawings>

100: foreign matter removal device of the skid beam

120: Plate

140: foreign material removal unit

142: main body

144: housing

146: driving means

148: operating means

150: cleaning member

Claims (7)

A plate moved through the skid beam in the furnace; A plurality of foreign matter removal units installed on the bottom of the plate and configured to remove foreign matters deposited on the skid beams at a high temperature; Debris removal device of the skid beam comprising a. According to claim 1, wherein the foreign material removing unit Driving means installed and driven at a bottom of the plate; An actuating means installed in the driving means to move forward and backward to remove foreign matter deposited on the skid beam; Debris removal device of the skid beam, characterized in that it comprises a. According to claim 1, wherein the foreign material removing unit A main body in which a cooling medium is accommodated; A housing installed in the main body to be submerged in a cooling medium accommodated in the main body; A driving means installed in the housing to generate a driving force and to transmit the driving force; And An actuating means installed on the driving means to move forward and backward to remove foreign matter deposited on the skid beam; Debris removal device of the skid beam, characterized in that it comprises a. The method of claim 2 or 3, wherein the drive means A driving source for generating a driving force; And A driving member connected to the driving source and transmitting a driving force generated from the driving source; Debris removal device of the skid beam, characterized in that it comprises a. The method of claim 2 or 3, wherein the operating means An operation member connected to the driving means so as to be forward and backward; And A cleaning member coupled to the operating member to remove foreign substances deposited on the upper surface of the skid beam; Debris removal device of the skid beam, characterized in that it comprises a. The method of claim 3, wherein the foreign matter removing unit And a first elastic member coupled to one end of the actuating means to provide a restoring force so as to easily reverse the actuating means. The method of claim 6, wherein the operating means And a second elastic member installed on the operating member connected to the driving means and provided with a cleaning member connected to the operating member to provide a cushioning action by the elastic force when the cleaning member interferes with the skid button installed on the skid beam. Foreign material removal device of the skid beam.

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