KR20010064837A - Movable type cooling apparatus for annealing furnace - Google Patents

Abstract

PURPOSE: A movable cooling apparatus of an annealing furnace is provided to prevent damage of a strip and breakage of the cooling apparatus by adjusting positions of cooling water spraying nozzles and cooling apparatus depending on the width directional changes of the strip, thereby preventing collision of the cooling apparatus according to the changes of the strip. CONSTITUTION: In a cooling apparatus (1) for cooling a strip (20) passing through an annealing furnace, the apparatus comprises a case having inlet and outlet parts (44a,44b) on the outer surface of which sensors (43a,43b) specifying the width of the strip are installed respectively, wherein the case is installed on the upper side of a rectangular base so that the case is moved back and forth along the rectangular base installed on the ground surface, and each of strip transferring rolls (42a,42b) are installed at the front and back sides of the case; nozzle moving stands for air and cooling water (50a,50b) installed at one side surface (40a) of the case, wherein the nozzle moving stands can be opened or closed, a plurality of air and cooling water spray nozzles (52a,52b) are installed on the inner side of the case, and each of the air and cooling water spray nozzles are positioned to the upper and lower sides of the strip transferred; and air and cooling water supplying pipes (60a,60b) connected to the other side surface of the case so that each of air and cooling water are supplied to the air and cooling water supplying pipes during sealing of the nozzle transferring stand (50) and case, and wherein a plurality of the apparatus are connected according to the transferring line of a strip.

Description

Movable type cooling apparatus for annealing furnace

The present invention relates to a cooling apparatus for cooling a strip that has passed through an annealing furnace in a continuous annealing line of a cold rolling mill, and more particularly, to adjust the position of a spray nozzle and a cooling apparatus for injecting cooling water according to the widthwise deformation of the strip. Thereby, the present invention relates to a flow-type cooling device of an annealing furnace, which prevents a collision of the cooling device due to deformation of the strip and thus prevents damage to the strip and breakage of the cooling device.

In general, the strip subjected to rolling in a cold rolling mill performs a surface shaping through continuous annealing and cooling, and the cooling of the strip passing through the conventional annealing furnace is illustrated in FIG. 1.

That is, as shown in FIG. 1, the strip 110 passing through the annealing furnace 100 passes through the cooling device 120, but is not described in detail in the drawing. However, the strip 110 cools the strip 110 as sprayed coolant and air. In this case, the strip 100 is subjected to a high temperature annealing furnace 100, the deformation is caused by a sudden temperature change, in particular the deformation (110 ') in the width direction, that is, the left and right direction of the strip is generated.

Therefore, the widthwise deformation 110 ′ of such a strip is, as shown in FIG. 1, the strip being transported while passing through one, the outlet 120a, 120b of the case 122 of the cooling device 120 ( 110 is bound to collide, which damages the surface of the strip 110 and at the same time causes breakage of the cooling device 120 case 122.

In particular, in severe cases, breakage of the strip 110 occurs, and in such a case, there are various problems such as stopping the stripping line of the strip and lowering the strip manufacturing productivity.

In addition, in the strip cooling apparatus 120 as described above, the spraying position and the cooling apparatus 120 cannot be moved fluidly in accordance with the above-described deformation of the strip, so that the deformation of the strip, particularly the widthwise deformation, can be effectively coped with. It is not there.

The present invention has been made in order to improve the various problems as described above, the object of the present invention, even if the widthwise deformation of the strip passing through the annealing path is detected, the cooling water injection position of the cooling device and the cooling device itself to adjust the movement. It is an object of the present invention to provide a flow-type cooling device of an annealing furnace that can prevent the breakage, breaking of the strip and damage of the cooling device in advance.

In addition, another object of the present invention, the variable position adjustment of the cooling device, as well as the flow of installation of the injection nozzle for injecting the coolant is easy to maintain and maintain the injection nozzle, as well as smooth transfer of the strip of the cooling device An object of the present invention is to provide a flow type cooling apparatus of an annealing furnace which further improves strip cooling efficiency.

1 is a schematic perspective view showing a cooling state of a conventional annealing furnace

Figure 2 is an overall perspective view showing a flow-type cooling device of the annealing furnace according to the present invention

Figure 3 is a perspective view showing a flow type cooling apparatus of the present inventor annealing furnace

Figure 4 is a perspective view showing the installation state of the present invention the flow type cooling apparatus of the annealing furnace

5 is an internal structural view showing a flow-type cooling device of the present invention annealing furnace

Figure 6 is a perspective view of the main part showing the connector of the present invention cooling device

Explanation of symbols on the main parts of the drawings

1 .... Chiller 10 .... Annealing Furnace

20 ... strip 30 ... square base

40 .... Case 42a, 42b .... Strip feed roll

43a, 43b .... Sensor 44a, 44b .... Case inlet and outlet

50a, 50b .... Air and Coolant Nozzles

52a, 52b .... Air and Coolant Jet Nozzles

60a, 60b .... Air and coolant supply lines

As a technical configuration for achieving the above object, the present invention is seated on the upper side to move forward and backward along the rectangular base installed on the ground, the front and rear strip conveying rolls are respectively installed, the width of the strip to the outside A case having an inlet and an outlet, each of which is installed with a sensor for measuring a;

A plurality of air and cooling water injection nozzles respectively disposed on upper and lower sides of the strip conveyed into the case and installed on one side of the case to open and close the nozzle nozzles for air and cooling water; And,

Air and cooling water supply pipes connected to the other side of the case to supply air and cooling water to the case when the case of the nozzle holder is sealed; By decommissioning the device.

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

Figure 2 is an overall perspective view showing a flow type cooling apparatus of the annealing furnace according to the present invention, Figure 3 is a perspective view showing a flow type cooling apparatus of the present invention annealing furnace, Figure 4 is installed of the flow type cooling apparatus of the present invention annealing furnace Figure 5 is a perspective view showing a state, Figure 5 is an internal structural view showing a flow-type cooling device of the annealing furnace of the present invention, the flow-type cooling device (1) of the annealing furnace of the present invention is the case 40, the nozzle moving table 50 and the supply pipe It is comprised as 60.

The case 40 is seated on its upper side to move forward and backward along the rectangular base 30 installed on the ground, and the strip conveying rolls 42a and 42b are installed in the front and rear, respectively, and the strip 20 is moved outward. Has inlets and outlets 44a and 44b which are respectively provided with sensors 43a and 43b for specifying the width of the "

At the bottom of the case 40, driving wheels 46 moving along both side walls 32 of the rectangular base 30 are installed at the front, rear, left and right sides of the bottom, respectively, and are disposed at the center of the bottom of the case 40. The block 47 is fastened to a screw shaft 36 driven as a drive motor 34 at the center of the square base 30 so that the case 40 is installed to move forward and backward.

In addition, the nozzle moving table (50a) (50b), a plurality of air and cooling water injection nozzles (52a) (52b) are respectively located on the upper and lower sides of the strip 20 to be transferred to the inside of the case 40 It is installed, it is installed to open and close on one side (40a) of the case 40.

In addition, the inlet and outlet 44a and 44b of the case 40 are connected to the inlet and outlet 44a and 44b of another adjacent case 40, respectively, and a connection jaw 45 is formed therein, and the sensor (43a) (43b) is formed by the photosensor for detecting the lower strip edge through the inlet, outlet 44 is installed so as to adjust the front and rear movement width of the case 40 in accordance with the deformation amount in the width direction of the strip.

On the other hand, the air and the coolant nozzle moving base (50a, 50b), the support 54 is rolled up in the upper and lower sides of the strip inward through the opening (40c) formed in one side surface (40a) of the case (40) It is formed in a rectangular frame shape that is moved along the support roll 56 of the), the protruding end (50a ') (50b') of the nozzle bar protruding on one side (40a) of the case 40 to the case (40) It is fixed after opening and closing as the rod 49a of the cylinder 49 horizontally installed on the upper and lower sides of the fixed piece 48 vertically coupled.

In addition, the air and cooling water supply pipes 60a and 60b connected to the other side 40b of the case 40 to supply air and cooling water to the case 40 when the case 40 of the nozzle moving table 50 is sealed, are It is formed of a flexible pipe which is installed on the other side of the nozzle unit 50 and connected to the second connecting pipe 64 in which the first connecting pipe 62 in which the sealing 62a is coupled to the outer circumference is inserted.

In addition, the error supply pipe (60a) is connected to the air main pipe (66c) for supplying air through the filter (66a) and the cooling box (66b), the cooling water supply pipe (60b) is dropped through the case (40). The coolant through the rail tube 68a for draining the coolant is configured to be connected to the main supply pipe 68d supplied through the reservoir 68b and the pump 68c, respectively.

Referring to the action and effect of the present invention made in the above configuration in detail as follows.

As shown in FIGS. 2 to 5, the strip 20 in which the continuous annealing operation is performed through the annealing furnace 10 is performed in the case of the cooling apparatus 1 separated by approximately three along the transfer line of the strip ( 40 through the case 40, the inlet and outlet 44a and 44b are formed integrally at the front and rear of the case 40, and the transfer roll 42a is disposed below the inlet and outlet 44a and 44b. 42b are respectively installed to perform the cooling operation while continuously transporting the strips 20.

At this time, as described above, the inlet and outlet 44a and 44b of the case 40 has a fixing jaw 45 is formed, the fixing jaw 45 is in close contact with each other to form a close connection duct (45a) 3 cases 40 are connected in a linear direction. As will be described in detail below, the connection duct 45a is formed in a flowable bellows shape, as shown in FIG. This is because the case 40 moves separately according to the widthwise deformation of the strip.

That is, as shown in FIGS. 3 and 4, the driving wheels 46 installed at the front, rear, and left and right sides of the bottom of the case 40 are disposed on both side walls 30a of the rectangular base 30 mounted on the ground. The screw shaft 36 which is seated and is rolled in the center of the square base 30 is fastened to the moving block 47 formed at the bottom of the case 40.

Therefore, when the driving motor 34 extended to the outside of the square base 30 is driven, the screw shaft 36 is driven to drive the moving block 47 back and forth to move the case 40 to the case 40 Is moved back and forth on the square base 30, such that the front and rear movement width of the case 40 through the upper case 40 to the left and right sides of the inlet and outlet 44a, 44b of the case 40. The width by the edge of the strip detected by the installed sensors 43a and 43b, in particular the width due to the deformation of the strip 20, is detected so that the driving amount of the drive motor 34 is adjusted through a bottom panel (not shown). Will be.

As shown in FIG. 5, the respective cases 40 are variably moved in accordance with the widths of the strips continuously detected as the sensors 43 installed before and after the respective cases 40. Even if the deformation in the width direction occurs it can be easily responded.

In addition, as shown in FIGS. 5 and 6, the one case 40 includes approximately four types of eight air and cooling water moving tables 50a and 50b, respectively, respectively. 50 is inserted through the opening 40c formed in the case 40 and along the support roll 56 of the support 54 rolled up and down of the strip 20 conveyed in the case 40. Move.

As a result, only the protruding ends 50a 'and 50b' of the nozzle moving tables 50a and 50b for air and cooling water remain on one side 40a of the case 40, and the nozzle moving table 50 as described above. When the movement in the case 40 is completed, the other side surface of the case 40 as a seal 62a provided at the periphery of the first connecting pipe 62 installed on the other side of the nozzle moving table 50. It is closely connected to the inside of the second connecting pipe 64 fixed to the.

Therefore, when air and cooling water are supplied from the air and cooling water supply pipes 60a and 60b which are integrally connected with the second connecting pipe 64, the bottom or the upper surface of the respective nozzle moving tables 50a and 50b. Air and coolant are ejected and sprayed on the surface of the strip 20 through the air and coolant injection nozzles 52a and 52b installed in the air, and thus the cooling operation of the strip 20 is performed more uniformly.

At this time, the drain pipe (68a) provided on the surface inclined to the lower side of the case 40 is not described in detail in the drawings, but are connected between the rectangular base 30, respectively, as the reservoir (68b) and the pump (68c) The cooling water is circulated and supplied to spray the cooling water into the case 40 through the main supply pipe 68d.

On the other hand, the air and cooling water supply pipe (60a) (60b) is provided to adjust the amount of air and cooling water as a solenoid valve (60a ') (60b') installed in the second connecting pipe (64), such a solenoid valve (60) The reason for adjusting the injection amounts of air and cooling water as') is to adjust the injection amounts according to the deformation of the strip to be cooled as described above.

Accordingly, as compared with the conventional cooling device 120 installed in a straight line, it has a spray nozzle (52a, 52b) for injecting air and cooling water in the case 40 flowing separately along the widthwise deformation width of the three strips Since the nozzle moving tables 50a and 50b are provided, the cooling efficiency of the strip 20 is, of course, easy to clean each spray nozzle.

As described above, according to the present invention, the flow-type cooling device of the annealing furnace detects even if a widthwise deformation of the strip passing through the annealing furnace is detected, thereby moving and adjusting the coolant spraying position of the cooling device and the cooling device itself, thereby preventing breakage, loss This has the advantage of preventing damage to the cooling system.

In addition, the variable positioning of the cooling device, as well as the flowable installation of the spray nozzle for spraying the coolant, facilitates maintenance and maintenance of the spray nozzle, and further improves the strip cooling efficiency of the cooling device by smooth strip transfer. It is an excellent effect.

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 (6)

In the cooling device (1) for cooling the strip (20) through the annealing furnace (10), The sensor is mounted on the upper side to move forward and backward along the rectangular base 30 installed on the ground, and the strip conveying rolls 42a and 42b are installed in the front and the rear, respectively, and the sensor specifies the width of the strip 20 to the outside. A case 40 having inlets and outlets 44a and 44b on which 43a and 43b are respectively installed; A plurality of air and coolant injection nozzles 52a and 52b respectively disposed on the upper and lower sides of the strip 20 transferred into the case 40 are installed, and one side surface 40a of the case 40 is provided. Nozzles for air and cooling water, which are installed to be opened and closed at 50a and 50b; And, Air and coolant supply pipes (60a) (60b) connected to the other side (40b) of the case (40) to supply air and cooling water to the case (40) of the nozzle moving table (50) when the seal is closed. Flow-type cooling device of the annealing furnace characterized in that the plurality is connected to the transfer line of the installation The bottom of the case 40, the driving wheel 46 moving along both side walls 32 of the rectangular base 30 is installed in the front, rear and left and right sides of the bottom, respectively, the case 40 The moving block 47 installed at the center of the bottom is fastened to a screw shaft 36 driven as a drive motor 34 at the center of the square base 30, so that the case 40 is installed to move back and forth. Type cooling device of annealing furnace The inlet and outlet 44a and 44b of the case 40 are connected to the inlet and outlet 44a and 44b of another adjacent case 40, respectively. The sensors 43a and 43b are formed by photosensors for detecting a lower strip edge through the inlet and outlet 44 to adjust the front and rear movement widths of the case 40 according to the widthwise deformation of the strip. Fluidized chiller of annealing furnace, characterized in that it is installed so According to claim 1, wherein the air and the coolant nozzle carrier (50a, 50b) is rolled up in the upper and lower sides of the strip inward through the opening 40c formed in one side (40a) of the case 40, respectively. The case is formed in a rectangular frame shape moving along the support roll 56 of the support 54, the case protruding end (50a ') (50b') protruding on one side (40a) of the case 40 in the case Flow type cooling apparatus of the annealing furnace, characterized in that the rod 49a of the cylinder 49 horizontally installed on the upper and lower sides of the fixed piece 48 vertically coupled to the 40 is fixed after opening and closing. The air and cooling water supply pipe (60a) (60b) connected to the other side surface (30b) of the case (40) is provided on the other side of the nozzle stand (50) and seals (62a) on the outer circumference. The combined cooling apparatus of the annealing furnace, characterized in that the first connecting pipe 62 is formed of a flexible pipe connected to the second connecting pipe 64 to be interpolated. The method of claim 5, wherein the error supply pipe (60a) is connected to the air main pipe (66c) for supplying air through the filter (66a) and the cooling box (66b), the cooling water supply pipe (60b) is the case (40) Cooling water through the drain pipe (68a) for draining the coolant dropped through the) is connected to the main supply pipe (68d) supplied through the reservoir (68b) and the pump (68c), respectively.