KR100954189B1 - Device for cleaning seal roll of bright annealing furnace - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a silol cleaning apparatus for a bright annealing furnace closed box, which enables to periodically clean the silol without removing hydrogen gas during facility operation, thereby reducing an excessive line down time when the silol is cleaned.

Accordingly, the present invention includes a brush roll placed in the axial direction of the seal roll inside the sealed box of the bright annealing furnace and a brush attached to the surface thereof, and a drive motor installed outside the sealed box to rotate the brush roll. A cleaning part for cleaning and removing foreign substances on the surface of the lower seal roll, a rotating plate rotatably installed on the outer surface of the sealed box, and a rotating shaft of the brush roll penetrated eccentrically with respect to the center, and protruding a predetermined length out of the rotating plate. Seal lever foreign matter in the bright annealing furnace closed box including an operating lever to be installed, a driving cylinder installed on the side of the sealed box and connected to the operating lever to rotate the rotating plate, and selectively moving the cleaning part to the silol surface. Provide a removal device.

Brush roll, drive motor, drive cylinder, foreign material receiver, heating wire

Description

Device for cleaning seal roll of bright annealing furnace}

1 is a perspective view schematically showing a general bright annealing furnace,

Figure 2 is a perspective view showing a sealed box of the bright annealing furnace is installed seal device foreign matter removal apparatus according to the present invention,

3 is a perspective view of the seal roll foreign matter removal apparatus according to the present invention,

4a and 4b is a detailed view of some of the configuration of Figure 3, in accordance with the present invention;

Figure 5 is a perspective view of a part of the seal roll foreign matter removal apparatus according to the present invention,

Figure 6 is a schematic cross-sectional view showing a state of use of the silol debris removing device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: brush roll 11: drive motor

20: rotating plate 21: operating lever

22: driving cylinder 23: hole

24: long hole 25: stud bolt

30: foreign material receiver 31: suction pipe

32: operation cylinder 33: locking plate                 

34: suction pump 35: mesh

40: cover 41: heating wire

The present invention relates to a bright annealing furnace for bright annealing a stainless cold rolled coil, and in particular, a silol of a bright annealing closed box that can easily clean various foreign substances adhering to a silol installed inside a closed box of a bright annealing furnace. It relates to a foreign material removal device.

In general, bright annealing is a cold rolled strip that prevents decarburization on the surface of the steel and is annealed in a stream of reducing or non-oxidizing gas so as not to lose metallic luster. There is a characteristic to keep it as it is for the first time.

The bright annealing uses hydrogen as an atmospheric gas to prevent oxidation and glossiness deterioration during heat treatment. The bright annealing furnace uses a vacuum furnace in which the entrance and exit of the strip are sealed to prevent the outflow of hydrogen. Will be used.

1 is a view showing a general bright annealing furnace, the strip 200 is introduced into the lower portion of the furnace 100 through the inside of the return duct 104 installed vertically through the cooling table 102 installed on the upper body. It is supposed to come out below.

A sealed box 106 is installed at a strip inlet portion below the furnace 100 to maintain airtightness in the furnace, and a plurality of seal rolls 110 are disposed on the upper and lower surfaces of the strip 200 inside the sealed box 106. Thus, when the strip 200 enters, the airtight box 106 is kept tight.

Here, the seal roll in the closed box is in close contact with the surface of the strip. When the strip degreasing or the various foreign matters generated during the annealing operation on the stripping area before bright annealing are contaminated by the surface of the roll, the strip affects the strip. Since heat treatment in a contaminated state causes product defects, the silol should be cleaned periodically.

Conventionally, a dummy material was introduced into a bright annealing furnace for cleaning the silol, and the hydrogen gas was converted into nitrogen gas, and then the sealed box cover was dismantled to clean the silol surface. After the cleaning was completed, the airtight box cover was assembled again, and the atmosphere gas was changed from nitrogen to a small number, and normal operation was continued.

However, in the conventional structure described above, first, a reducing atmosphere gas such as hydrogen is a highly explosive gas which is highly explosive and requires great care in handling. Therefore, in order to clean the silol, the vertical furnace is first extinguished and the reducing gas is replaced with nitrogen gas. Since the silol has to be cleaned after purging, there is a problem in that the inner silol cannot be cleaned when the facility is operated.

Secondly, it will take 6-10 hours to vertically extinguish and replace gas, 2-4 hours to clean the silol, and 8-12 hours to raise the temperature to the proper temperature after firing the annealing furnace. There is a problem that takes too much time.

Accordingly, the present invention has been made in order to solve the above problems, it is possible to periodically clean the silol in the state without removing the hydrogen gas during operation of the bright annealing furnace to reduce the excessive line down time when cleaning the silol Its purpose is to provide a seal roll cleaning device for a sealed box.

The present invention for realizing the above object is installed in the bright annealing furnace sealed box to clean the surface of the upper and lower seal rolls to remove foreign substances, and if necessary to selectively contact the cleaning surface with the silol surface It is made of a moving part, it is characterized in that the cleaning operation can be made in the closed sealed box.

In addition, the present invention further includes a collecting unit for collecting the foreign matter of the silol removed by the cleaning unit to discharge to the outside of the sealed box.

Accordingly, it is possible to easily remove the foreign matter on the silol without opening the mouth-side sealing box.

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

1 is a perspective view schematically showing a general bright annealing furnace, Figure 2 is a perspective view showing a sealed box of a bright annealing furnace in which a silol foreign material removing apparatus according to the present invention is installed, Figure 3 is a silol foreign material removal according to the present invention A configuration perspective view of the device.

According to the above drawings, the strip 200 passes through the sealed box 106 at the entrance side of the bright annealing furnace, and the sealed box 106 is in close contact with the upper and lower surfaces of the strip 200 to close the sealed box 106. A pair of seal rolls 110 are installed to maintain the airtightness.

The present invention, the cleaning unit for cleaning and removing the foreign matter on the surface of the upper and lower seal roll 110 in the bright annealing furnace closed box 106, and the cleaning unit to clean the seal roll 110 seal roll 110 It consists of a moving part for selectively contacting the surface and a collecting part for collecting and discharging the foreign matter removed from the silol, it is a structure that can be cleaned in the closed sealed box 106.

Here, since two seal rolls 110 are installed inside the sealed box 106, each seal roll 110 is provided with a cleaning part and a moving part having the same structure, respectively. .

The cleaning unit is placed in the axial direction of the seal roll 110 in the sealed box 106 and the brush roll 10 is attached to the surface, the brush box 10 is installed outside the sealed box 106 to rotate the brush roll 10 It consists of a drive motor 11 for.

In addition, the brush roll 10 moving part is rotatably installed on the outer surface of the closed box 106 and the rotating plate of the brush roll 10 is installed eccentrically with respect to the center and the outer side of the rotating plate 20 The operation lever 21, which is installed to protrude a predetermined length, is installed on the side of the closed box 106 and is connected to the operation lever 21 includes a driving cylinder 22 for rotating the rotating plate 20.

Therefore, when the rotating plate 20 is rotated, the rotating shaft of the brush roll 10 installed at a predetermined distance from the center of the rotating plate 20 moves by a predetermined angle with respect to the center of the rotating plate 20 to seal the brush roll 10. It will be in contact with / leaving 110.                     

As shown in FIG. 3, the installation structure of the rotating plate 20 and the sealing box 106 forms a circular hole 23 at the side of the sealing box 106 and an arc-shaped long hole (outside the rotating plate 20). 24 is formed at regular intervals, and the outside of the hole 23 is provided with a stud bolt 25 fitted to the long hole 24 at a position corresponding to the long hole 24, the long hole 24 of the rotating plate 20 ) Is inserted into the stud bolt (25) and then installed by tightening the nut to the stud bolt (25) from the outside of the rotating plate (20).

The airtightness is maintained between the contact surface of the rotating plate 20 and the sealing box 106 and the rotating shaft of the brush roll 10 and the rotating plate 20 so that the atmosphere gas inside the furnace does not flow out of the gap.

Meanwhile, as illustrated in FIGS. 3 and 4A, a collecting part for discharging foreign matters deposited on the brush roll 10 to the outside of the sealed box according to cleaning of the surface of the seal roll 110 is disposed inside the closed box 106. 10 is installed in the lower axial direction to receive the foreign matter falling from the brush roll 10, the foreign matter receiving 30, and the suction pipe 31 is installed in communication with the bottom of the foreign matter receiving 30 extending to the outside of the sealed box, It is installed at the lower end of the foreign matter receiver 30 and installed in the piston rod tip of the operation cylinder 32 penetrated to the upper part of the foreign matter receiver 30, the operation cylinder 32 penetrated to the upper part of the foreign matter receiver 30, and the foreign substance. Hanging plate 33 which extends in the longitudinal direction of the receiving base 30 and enters between the brushes on the surface of the brush roll 10, is connected to the end of the suction pipe 31 to suck foreign matter through the suction pipe 31 and filter out foreign matter. It includes a suction means for.

As shown in FIG. 5, the suction means includes a suction pump 34 connected to the suction pipe 31, and a net for collecting foreign substances 35 installed on the outlet side of the suction pump 34 to filter foreign substances. Include.

In addition, according to the present embodiment, the collecting unit further includes a brush roll 10 heating means in order to increase the foreign matter removal efficiency by the brush roll 10, the heating means as shown in Figs. The cover 40 is installed in the sealed box 106 in the axial direction of the brush roll 10 and covers the upper portion of the brush roll 10, and is arranged along the cover 40 and is supplied with power to the brush roll. It consists of the heating wire 41 for heating 10.

Therefore, when the heating wire 41 is heated, the brush roll 10 placed inside the cover 40 is heated and maintained at an appropriate temperature (about 60-70 ° C.) to help drop off foreign substances on the brush roll 10.

Hereinafter, the operation of the present invention will be described with reference to FIG. 6.

When quality defects occur on the upper or lower surface of the strip 200 due to poor degreasing in the degreasing section or contamination of the seal box 106 seal roll 110, the operator operates a switch installed on a control panel to remove the seal roll foreign material of the present invention. The device is operated to clean the silol surface.

That is, when the driving cylinder 22 is extended and the piston rod is extended according to the switch operation, the piston rod pushes the operating lever 21 installed at the front end to rotate the rotating plate 20 provided with the operating lever 21. .

The rotating plate 20 is rotated by a predetermined angle around the hole in the side of the sealed box 106 through the stud bolt 25 and the long hole 24, the brush roll 10 is installed eccentrically from the center of the rotating plate 20 ) Is moved along the trajectory eccentrically from the center of the rotating plate 20 by the moving angle of the rotating plate 20 is in close contact with the surface of the silol 110.

In addition, the brush roll 10 is rotated in one direction according to the operation of the drive motor 11 is connected to the rotating shaft in close contact with the surface of the seal roll 110 as described above, so that the seal roll 110 rotates the brush roll ( 10) surface foreign matter can be removed. Brush roll 10 is to be rotated in the opposite direction of the rotation direction of the seal roll 110 to increase the cleaning effect.

After the cleaning operation for a predetermined time, the driving cylinder 22 is contracted by a timer operation or a switch of an operator, and the operating lever 21 connected to the piston rod end of the driving cylinder 22 is pulled out to rotate the rotating plate 20. ) Will return to its original position.

Therefore, the brush roll 10 installed on the rotating plate 20 is returned to its original position in close contact with the seal roll 110 and spaced apart from the seal roll 110 by a predetermined distance.

Here, the heating wire 41 installed on the cover 40 covering the brush roll 10 is heated by receiving power according to the operation of the apparatus to maintain the temperature of the cover 40 at about 70 ℃, accordingly the cover The brush roll 10 close to the inner side 40 is heated by the heat of the lid 40.

The heating of the brush roll 10 further facilitates the removal of foreign matter from the brush roll 10.

That is, when the seal roll is finished cleaning as described above and the brush roll 10 is spaced apart from the seal roll, the operating cylinder 32 is extended to operate the locking plate 33 installed at the tip of the piston rod of the operating cylinder 32 to the brush roll ( 10) to the inside of the sole.

In this state, when the driving motor 11 installed on the rotating shaft of the brush roll 10 is operated, the brush roll 10 is rotated so that the brush on the surface is bounced off by the catching plate 33. Foreign matter attached to the brush is dropped off to fall into the foreign matter receiver (30).

The foreign matter dropped into the foreign matter receiver 30 is sucked through the suction pipe 31 connected to the foreign substance receiver 30 according to the operation of the suction pump 34 and through the mesh 35 connected to the suction pump 34 exiting side. Will go out. In this process, foreign matter is caught on the net 35 and collected.

The cleaning operation time of the seal roll may be set for a predetermined time by setting a timer or the like installed in the control panel in advance, or the operation may be completed by turning off the cleaning device after the operator checks the cleaning state.

As described above, according to the apparatus for removing silol foreign materials of the bright annealing furnace closed box according to the present invention, it is possible to perform the cleaning operation of the silol in a state in which the hydrogen gas in the sealed box is not leaked or removed. It is possible to reduce the size and to periodically clean the rolls, thereby improving the quality of the product.

In addition, there is an effect that can minimize the human injury caused during the conventional manual work

In addition, by completely removing the foreign matter from the brush roll to remove the foreign matter is discharged to the outside there is an effect that can reduce the other workload for brush roll cleaning.

Claims (4)

Surface of the upper and lower seal rolls, including a brush roll placed in the axial direction of the seal roll inside the closed box of the bright annealing furnace and a brush attached to the surface, and a drive motor installed outside the sealed box to rotate the brush roll. A cleaning unit for cleaning and removing foreign matters from the dust; Rotating plate is rotatably installed on the outer side of the sealed box and the rotating shaft of the brush roll is installed eccentrically with respect to the center, and an operating lever protruding a predetermined length outside the rotating plate, is installed on the side of the sealed box and connected to the operating lever A moving part including a driving cylinder for rotating the rotating plate to selectively contact the cleaning part with the silol surface; A foreign matter receiver for receiving foreign substances falling from the brush roll in the axial direction at the lower part of the brush roll inside the sealed box, and a suction pipe installed in communication with the bottom of the foreign substance receiver and extending outside the sealed box, and installed in the lower part of the foreign substance receiver. An operating cylinder penetrating to the upper part of the receiving part, a stopping plate installed at the tip of the piston rod of the operating cylinder penetrating to the upper part of the foreign matter receiving member, extending in the longitudinal direction of the foreign material receiving member and entering between the brushes of the brush roll surface, and connected to the end of the suction pipe. And a collecting unit for collecting and discharging the foreign substances removed from the silol, including suction means for sucking the foreign substances through the suction pipe and filtering the foreign substances. The method of claim 1, wherein a circular hole is formed on the side of the sealed box, and an arc-shaped long hole is formed at a predetermined interval on the outer side of the rotating plate, and a stud bolt is fitted to the long hole at a position corresponding to the long hole on the outer side of the hole. And inserting the long hole of the rotating plate into the stud bolt, and then tightening the nut to the stud bolt from the outside of the rotating plate to install the rotating plate in a sealed box. delete According to claim 1, wherein the collecting unit is installed in the axial direction of the brush roll inside the sealed box to cover the upper portion of the brush roll, and arranged along the cover and the heating wire for heating the brush roll by applying power Including, the seal roll foreign material removal device of the bright annealing furnace closed box further comprising a heating means for heating the brush roll.

Images