KR101309943B1 - Apparatus for Cooling Wire-rod Coil - Google Patents

Abstract

Provided is a wire coil cooling device for cooling a wire rod to be wound and transported.
The wire coil cooling apparatus may include: a refrigerant tank in which a wire coil is deposited and cooled while being provided with a refrigerant that is cooled and temperature controlled; And, it may be configured to include a wire coil transfer means provided in the refrigerant tank.
According to the present invention, the wire coil wound in the shape of a ring in the winder (laying-head), instead of the conventional blowing cooling method, using an alternative refrigerant except for the coolant to generate a low temperature structure according to the supercooling, Through temperature control, polymer use, and bubbling, the rapid cooling of wire rod coils can be increased, and material deviations through uniform cooling can be reduced, resulting in improved quality.

Description

Wire rod coil cooling device {Apparatus for Cooling Wire-rod Coil}

The present invention relates to a wire coil cooling device for cooling a wire coil to be wound and transported, and more particularly, to a wire coil wound in a ring form in a winding machine (laying-head), according to supercooling. By using alternative coolant except coolant that generates low temperature structure, by controlling temperature of refrigerant, using polymer and realizing bubbling, it is possible to increase quenching power of wire rod coil and reduce material deviation through uniform cooling. The present invention relates to a wire coil cooling device with improved quality.

In general wire rod production process, the billet is heated to about 1000 ~ 1200 ℃ in the furnace, and the hot round wire rod after rough rolling, intermediate rough rolling, intermediate sand rolling and finishing rolling is cooled in a water cooling zone and wound up. The wire rod is produced through the process and then put into the correction line.

At this time, the wire coil according to the rolling step to produce a small diameter wire of 5.5 ~ 15mm diameter and large diameter wire of 15 ~ 42mm.

On the other hand, in the case of a small diameter wire rod, if formed in the form of a non-concentric circular coil through a winding machine, for example, a laying head, after performing heat treatment in parallel with the transfer of the transfer facility (conveyor conveyor), It accumulates through the reforming tubing and then into the inspection line.

That is, as shown in Fig. 1 and Fig. 2, the raw material rolled in the rolling mill 10 is cooled by the water chiller 20 for cooling with cooling water, and is wound while passing through the laying-head 30 as a winding machine.

The wire rod coil 1 wound in this manner is continuously dropped and seated on the rollers 42 of the transfer conveyor 40, and the wound wire coil passes through the transfer conveyor 40 and has a blower unit 50 installed below. It is cooled by a cooling medium blown from the air, that is, cooling air.

Then, the wound wire coil (1) is to be integrated into the final product while falling on the integrator (60) associated with the transfer conveyor.

On the other hand, the cooling process of such a small diameter wire rod coil, as shown in Figures 1 and 2, the wire rod coil is continuously wound in a coil form in the winding-head (30) of the winding machine is extracted conveying conveyor (40) In the middle of dropping and conveying on the conveying roller 42 of the fan), air is blown to the conveying conveyor from the blowing unit 50 provided with several units along the conveying conveyor under the conveying conveyor, and the blown air is conveyed. In contact with (1), the wire coil in the high temperature state is cooled to low temperature before integration is performed, and the heat treatment process of the wire coil is performed.

At this time, the temperature of the wire coil wound and dropped to the transfer roller is about 830 ~ 950 ℃, and the cooled wire coil is about 300 ~ 500 ℃.

Meanwhile, the blower unit 50 includes a duct 54 having a blower 52 disposed at a lower portion thereof, and an opening portion disposed between the transfer rollers 42, that is, the nozzle 56, as shown in FIG. 2. Are arranged.

In this case, as shown in FIG. 2, the wire rod 1 may be divided into three parts of the center coil CN, the middle portion MI, and the edge portion ED. have.

On the other hand, such a blowing unit 50 is also known as Stelmor (Stelmor), although it provides an advantage to obtain a variety of cooling speeds depending on the cooling conditions, such as the strength of the blowing force or the transfer speed of the wire coil (1). , There was a problem in realizing the same blowing in the width direction of the wire coil (1).

For example, as shown in FIG. 3A, when the wire coil 1 is extracted from the laying head and loaded on the transfer roller 42 of the transfer conveyor 40, the edge of the wire coil 1 is There is a significant difference in the stowage density between the part ED (ED in FIG. 2) and the central part CN, and as shown in FIG. 3B, the maximum at the time when the transformation of the material cooled under the same blowing environment occurs. There is a temperature difference of about 80 ℃.

For reference, FIGS. 4A and 4B show photographs obtained by measuring an infrared thermal thermometer of a widthwise temperature distribution of a wire rod (ring) in an actual operation site, and cooling imbalance due to a difference in overlapping density of wire rods (rings). In addition, since the ring is cooled by one-dimensional loading on the conveyor, the overlap between the rings is severely generated.

That is, as illustrated in FIGS. 5A and 5B, the difference in overlap density of the wire rod coil causes a hot spot in which the wire rod coil is not cooled well. The hot-spot portion overlapped by the wire coil is not easily cooled by the blowing method, and even if the blowing amount is increased, a material deviation occurs due to the cooling deviation.

However, if the analysis based on the temperature measurement photograph of Figure 4, as shown in Figure 6, in the case of a wire coil containing 0.8% of carbon and a diameter of 5.5mm, the farther away from the laying-head 30 It can be seen that the difference is significant in the temperature history of the central portion CN and the edge portion ED of the wire rod 1.

That is, the temperature deviation due to the difference in cooling density at the center portion and the edge portion of the wire rod due to the difference in the stock loading density and the occurrence of the hot spot portion (overlapping portion) eventually results in the microstructure in the width direction of the wire rod coil. Differently, leading to product defects.

On the other hand, a known conventional wire coil cooling facility for reducing such a widthwise temperature deviation of the wire rod coil is shown in FIG.

That is, as shown in FIG. 7, in the conventional case, the partitions 58 are installed in the longitudinal direction inside the ducts 54 of the blower unit 50 so that the upper and lower dampers 58a and the deflector 58b are disposed. Air flow is concentrated more concentrated on the edge ED of the wire rod 1, which is not cooled well due to high overlap density, and has a width distribution in the wire coil as shown in FIG. Directional uniform cooling is implemented.

However, in the conventional method of implementing uniform cooling in consideration of the overlapping density of the wire rod coils, the cooling speed between the lower ring and the upper ring of the overlapping wire rod coils is different and virtually cooling is performed at the hot spot part. Since it does not hold | maintain, the cooling nonuniformity generate | occur | produces in the width direction of a wire rod coil even if it concentrates blowing by the wire coil part.

That is, in the case of cooling by the blowing method while being extracted from the laying-head, only the control of the blowing direction or the concentration of the blowing by parts of the wire rod coil, for example, the wire rod when the unit ring of the wire rod coil is not changed According to the difference of the overlap density of the coil (refer to the photograph of FIG. 5), the uniform cooling of each part of the wire coil ring was limited.

Accordingly, the applicant of the present invention is to apply a refrigerant that replaces the wire coil cooling itself in the form of a conventional blowing Stelmore. Using hot water as the basic refrigerant, except for the coolant that generates the low temperature structure caused by excessive quenching, adding polymer to increase the viscosity so that the boiling film related to the nuclear boiling transition temperature of hot water is not easily broken, and further, bubbling at the edge of the wire coil. The present invention has been proposed in which an area is established to enable uniform cooling.

The present invention has been proposed in order to solve the conventional problems as described above, an object of the present invention is to replace the low-temperature structure of the wire coil wound in a ring shape in the winder (laying-head) instead of the conventional blowing cooling method, according to supercooling While using alternative refrigerants other than the cooling water to be generated, that is, hot water, by increasing the quenching power of the wire rod coil by controlling the temperature of the refrigerant, using the polymer, implementing bubbling, and dropping the wire rod or varying the feed rate for each section, It is to provide a wire coil cooling apparatus that can reduce the material deviation through uniform cooling, and ultimately improve the quality of the wire coil.

As a technical aspect for achieving the above object, the present invention provides a refrigerant tank provided with a refrigerant that is cooled and temperature-controlled while the wire rod coil is deposited; And, a wire coil transfer means provided in the refrigerant tank, wherein a transfer table for transferring the cooled wire coil is provided at the exit side of the refrigerant tank.
The wire coil transfer means provided in the refrigerant tank includes: a refrigerant tank inlet section of the wire coil; and a wire coil refrigerant deposition section in which cooling is performed through the refrigerant deposition of the wire coil; And a feed roller arranged in a wire rod discharge section provided to enable discharge of the refrigerant tank of the cooled wire rod coil.
The coolant deposition section of the wire coil is provided with at least one free drop section which is arranged so that the feed roller has a height difference, so as to adjust the ring-to-ring spacing of the wire coil,
It includes a temperature control means of the refrigerant consisting of a heating heater provided in the refrigerant tank, comprising a dust collecting means provided on the wire rod inlet side of the refrigerant tank, and increases the cooling capacity of the wire coil while being connected to the refrigerant tank. It provides a wire coil cooling apparatus including a bubbling means to form a bubbling region so as to facilitate or to stir the refrigerant and the added polymer.

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Preferably, the coolant filled and temperature-controlled in the coolant tank is provided as hot water that is temperature controlled to prevent low temperature structure formation of the wire rod by supercooling.

More preferably, a polymer is further added to the refrigerant, and the polymer is made of sodium polyacrylate.

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More preferably it further comprises a refrigerant supply means associated with the refrigerant tank.

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According to the present invention, the cooling by eliminating the cooling unevenness due to the lack of cooling capacity and the overlap density in the wire coil width direction, which is the limitation of the existing blowing method that is wound and transported while being wound and transported in a circular ring shape in the wire rod air cooling target, By improving the structure, it is possible to reduce the width deviation of the wire coil (ring) in the width direction, and to realize the cooling capacity appropriately while preventing the occurrence of low temperature structure when using the coolant to realize the optimum wire coil cooling. will be.

In particular, while the refrigerant is used as hot water, bubbling is applied to eliminate the input of the polymer and the variation in the cooling performance of the edge of the wire coil, and further, the gap between the wire coil unit rings is controlled by free transfer of the precoil coil or variable transfer by section. This eliminates cooling unevenness of the wire coil.

Accordingly, the present invention enables the elimination of heat treatment in the post process while uniformly quenching the wire rod, and ultimately eliminates the variation in tensile strength for each ring portion (edge, center, etc.) of the wire rod to provide optimum cooling efficiency. will be.

1 is a schematic diagram showing a typical wire coil manufacturing step
FIG. 2 is a schematic plan view showing a blower for cooling the wire coil in FIG.
3A and 3B are graphs showing width loading density and temperature deviation of wire rod coils;
4a and 4b is a photograph showing the infrared thermal image temperature distribution according to the loading density of the wire coil
5a and 5b are photographs showing the temperature deviation according to the difference in the chopping density of the wire coil cooled by the conventional blowing method
6 is a graph showing the temperature history between the center and the edge of the conventional wire rod coil
7 is a configuration diagram showing a conventional wire coil cooling facility
8 is a schematic diagram showing the distribution of the blowing direction in the width direction of the conventional wire coil (ring)
9 is a configuration diagram showing the overall configuration of the wire coil cooling apparatus according to the present invention
10 is a front configuration diagram of FIG. 9
FIG. 11 is a structural diagram showing a refrigerant tank installation structure of a transfer roller in the apparatus of FIG. 9; FIG.
12 is a graph showing cooling history curves for air (blowing), cooling water, and refrigerant (hot water).
13 is a graph showing the cooling hysteresis curve according to the boiling mechanism of water
14A and 14B are graphs showing (nuclear boiling) transition temperature and transition temperature of hot water
15 is a graph showing the cooling capacity according to the amount of polymer added
16 is a graph showing the transition temperature according to the amount of bubbling
17 is a graph showing the transition temperature according to the polymer concentration
18 is a graph showing the cooling capacity according to the bubbling speed
19 is a graph showing the cooling capacity of the prior art and the present invention
20 is a schematic diagram showing the interval adjustment of the wire coil unit ring in the free fall section in the present invention device

Hereinafter, a preferred embodiment of the present invention according to the accompanying drawings.

First, the apparatus of the present invention is shown in Figs. However, the conventional wire coil take-up 30 and the wire coil 1 and the unit ring 1a will be described with the same reference numerals as described above. In addition, in this embodiment below, the winder will be described as a laying-head 30.

For example, FIG. 9 and FIG. 10 illustrate the entire configuration of the wire coil cooling apparatus 100 according to the present invention. Preferably, as an example of the configuration, the wire coil 1 wound up and extracted from the winding machine 30 is It is configured to cool the wire coil through a refrigerant including a refrigerant tank 110 provided to pass through to implement the cooling of the wire coil, and the wire coil transfer means 130 provided to the refrigerant tank 110.

Accordingly, the present invention is directed to a method of depositing and cooling the wire coil 1 directly transferred to a refrigerant, instead of a cooling method of a blowing method that realizes cooling of a small diameter wire rod coil wound using a laying-head 30. There is a characteristic.

On the other hand, as shown in Figures 9 and 10, the refrigerant filled in the refrigerant tank 110 that passes through the wire coil is deposited while allowing the cooling of the wire coil in the apparatus of the present invention, preferably by supercooling Use hot water (HW) to prevent low temperature formation of wire rods.

For example, FIG. 12 shows a cooling hysteresis curve in the case of using blowing air, cooling water and hot water HW as the refrigerant.

Therefore, as can be seen in Figure 12, the blowing method using the conventional air, as described in the previous step, in the width direction of the wire coil in the case of cooling by blowing in one dimension on the conveying roller conveyor (40 in Figure 1) As a result, non-uniform cooling becomes a problem, and in addition, a problem of lack of cooling ability (quick cooling force) occurs in the case of blowing.

In addition, in the case of cooling water having excellent cooling ability (for example, water at room temperature without additional heat), as shown in FIG. 12, rapid cooling is possible in a short time compared to the blowing air, but in fact, it is supercooled, It forms unwanted low temperature tissue which degrades the quality of wire.

Therefore, the applicant of the present invention is to solve the problem of the conventional blowing method, in order to remove the tissue defects by the cooling water, using the hot water (HW) as a refrigerant.

In this case, as shown in FIG. 12, the cooling ability between the air and the cooling water is exhibited, thereby eliminating the shortage of the quenching power of the blowing method, and excluding the generation of low temperature structure due to the supercooling by the cooling water.

That is, in the case of the present invention, since the wire rod coil is transferred in a state of being directly deposited on the coolant of hot water, even if the wire rod coil is transferred to the transfer means 130, the wire rod coil can be cooled more uniformly in the width direction of the wire rod coil.

For example, when the cooling water is used as a refrigerant, the quenching ability is greatly increased, but as described above, low temperature tissue is formed, leading to poor quality while not obtaining fine pearlite.

In addition, when cooling the wire coil using the wire coil cooling apparatus of the present invention, the characteristics of the water to change the characteristics of the water in the refrigerant filled in the refrigerant tank 110, that is, hot water (HW) to obtain fine pearlite in the structure of the wire rod, (Boiling mechanism) can be used to achieve more efficient cooling.

For example, referring to the boiling mechanism of water through the graph of FIG. 13, the boiling of water has a membrane boiling region and a nuclear boiling region. In the membrane boiling state, the cooling capacity is not large, so a suitable refrigerant region for cooling the material (wire) is used. Region), on the contrary, in the nuclear boiling region, the cooling ability of the wire rod is so large that low temperature tissue is generated.

Therefore, when the wire coil 1 is introduced into the coolant tank 110 of the apparatus of the present invention, when the hot water, which is a coolant, is formed in the film boiling region, and this state is maintained as much as possible, a low temperature structure is generated when the wire coil is cooled. It is to be able to obtain fine pearlite which is not generated.

For example, in the case of general carbon steel, the desired structure can be obtained by maintaining the membrane boiling state up to 530 ° C. or less, which is the phase transformation end temperature at which the transformation ends.

Therefore, in the case of cooling the wire coil of the present invention, as described with reference to FIG. 12, it is preferable to use hot water as the refrigerant, so that the film boiling region (state) can be increased by changing the characteristics of the hot water. For example, it can be implemented in the following ways.

For example, as shown in FIGS. 13 and 14A and 14B, the transition temperature is a point where the cooling phenomenon changes when the material is cooled in water, and the cooling capacity is low in the film boiling region before the transition temperature. After the transition temperature, the cooling rate is high in the nuclear boiling region, but in the case of cooling water (water), the cooling capacity is too fast, and since all wires heat-treated in water form a low temperature structure, it is a method of delaying such cooling capacity. In this case, the lower the actual transition temperature, the more favorable the wire rod cooling. In order to lower the transition temperature, a polymer is added or the water temperature is increased.

That is, the transition temperature associated with the transition boiling region, which is the intermediate transfer region of the membrane boiling region from the nuclear boiling region, that is, the temperature of the boiling region (mode) that changes the boiling region (mode) from the membrane boiling region to the nuclear boiling region when the water temperature is increased. It can be lowered. For example, in the case where the water temperature is approximately 99 ° C in FIG. 14B, it can be maintained in a film boiling state up to a temperature of approximately 500 to 600 ° C.

Therefore, as will be described in detail below, in the wire coil cooling device 100 of the present invention, the refrigerant temperature control means 210 provided inside the refrigerant tank 110 that controls the temperature of the refrigerant, that is, hot water is further added. Which may be included in the following description.

As a next method, a polymer is added to a refrigerant, that is, hot water (HW). As shown in FIG. 15, it can be seen that as the amount of polymer added increases, the nuclear boiling transition temperature shown in FIG. 14 described above decreases. . Of course, adding the desired polymer to water at room temperature does not reduce the nuclear boiling transition temperature to the desired temperature, but the wall of the film boiling region due to the polymer is less likely to break than the film boiling film caused by the water temperature. .

Therefore, in the present invention, the polymer is added to hot water, which is a refrigerant, to further strengthen the membrane structure in the film boiling region, thereby implementing proper wire coil cooling. This is described again in detail next.

That is, in general, the role of the polymer in cooling plays a role of strengthening the boiling film such as film boiling, so that as the concentration of the polymer increases, the viscosity of the aqueous solution increases and the boiling film increases in proportion.

Finally, as shown in FIG. 16, it can be seen that the bubbling that blows air into the refrigerant (hot water) (water) reduces the nuclear boiling transition temperature. Accordingly, the present invention further includes a bubbling means 230 as described in detail below.

After all, through the temperature control of the refrigerant, the addition of the polymer, and the bubbling described above, the present invention is to realize the optimum cooling during the cooling of the wire coil. As shown in FIG. 12, the wire cooling curve is to implement a cooling hysteresis curve of the present invention to which a refrigerant is applied to form a fine pearlite structure of the wire.

However, when only the hot water is used as the refrigerant, since the boiling film of the hot water is unstable and easily broken by disturbance, it is preferable that a low temperature structure is generated, so that the temperature of the water is close to 100 ° C., which is almost the boiling point. Although the temperature of the wire coil is considerably high when the hot water is deposited, as described above so that the hot water temperature does not generate a low temperature structure, when the temperature is close to 100 ° C., a problem of cooling capacity occurs, more preferably, the cooling capacity is increased. The polymer is added to the hot water so as to form a boiling film having a strong structure in which the boiling film is not easily broken by external disturbance while lowering the temperature of the hot water.

In other words, the polymer serves to increase the viscosity of the mole so that the boiling film is not easily broken.

On the other hand, in the case of such a polymer (refrigerant) has been widely used as an alternative to the oil scavenger, since the polymer has a large cooling capacity, it does not significantly reduce the cooling capacity compared to the cooling water (water at room temperature), For application, it is most preferable to use sodium polyacrylate.

For example, when using a polymer of sodium polyacrylate, as shown in Figure 17, it can be seen that the nuclear boiling transition temperature is 530 ℃ when the polymer concentration of sodium polyacrylate is 10% in water of 70 ℃. . By the way, although not shown as a separate curve in Figure 17, in the case of using the other general polymer, the nuclear boiling transition temperature is more than 700 ℃ when the polymer concentration is 10%. That is, in the case of using a polymer of sodium polyacrylate, even if the hot water temperature is 70 ° C. to increase the cooling ability, the nuclear boiling transition temperature is lower than that of the general polymer, thereby stably ensuring the stability of the boiling film. Therefore, the temperature of the hot water of the present invention is preferably 70 to 99 ° C.

That is, in the wire coil cooling step of the present invention, the wire coil is deposited and transferred to the refrigerant, and the coolant is made of hot water to prevent the formation of low-temperature tissues rather than the cooling water, and the temperature is lowered to prevent a decrease in the cooling ability of the hot water. In order to avoid breaking the membrane structure, a polymer, in particular, a polymer of sodium polyacrylate which lowers the nuclear boiling transition temperature is used.

In particular, the reason for using sodium polyacrylate (ACR) as a polymer in the present invention is that sodium polyacrylate does not significantly change the cooling capacity of the refrigerant according to the concentration and temperature change compared to the polymer of the other components, so that the actual This is because a stable operation is possible even if a change in concentration or temperature does not easily change the cooling capacity of the refrigerant, that is, hot water.

On the other hand, the use of a polymer increases the viscosity of the refrigerant, i.e., the hot water, and generates less cooling unevenness per unit ring due to the overlapping density of the wire coil passing therethrough. In order to realize the widthwise temperature uniformity of the wire coil, bubbling is used.

That is, in the case of using the bubbling means 230 described above, in particular, it will be possible to solve the cooling unevenness due to the increase in the overlap density of the edge portion (see FIG. 2) in the width direction of the unit ring of the wire rod.

For example, as shown in Figure 18, it can be seen that the wire rod cooling rate in hot water increases as the air bubbling speed, that is, the air injection pressure increases. Therefore, as shown in FIG. 10, when the bubbling area B in which air is injected to the edge part in the width direction of the wire coil 1 is constructed. Even if this part has a particularly high overlap density, the cooling capacity is increased, and thus, uniform cooling in the wire coil width direction will be possible.

For example, as shown in Figure 19, in the case of the present invention that implements the use of hot water and bubbling when cooling the wire coil of the present invention, the cooling ability compared to the conventional 2 using the hot water in the conventional blowing method or conveyor. It can be seen that excellent. That is, as shown in Figure 19, the case of the conventional 1,2, the cooling capacity is basically lower than the present invention.

At this time, in the case of a comparative example (lead bath) in FIG. 19, the heat transfer is excellent, but the most excellent cooling capacity, the lead bath is used to fill the molten lead, the cooling capacity is the most ideal, but lead is currently harmful to humans or the environment pollutants Therefore, in the case of the present invention substantially in Fig. 19 is to provide the most ideal cooling capacity that can be realistically implemented close to the best bath capacity.

Next, as shown in Figures 9 and 20, during the transfer using the feed rollers 132 of the transfer means 130 during cooling of the pre-coil of the present invention, at least, free fall section (P) in which the wire rod is dropped freely at one point. ) To form.

In this case, as shown in FIG. 20, the unit ring spacing of the wire coils passing through the free fall section is widened, thereby reducing the overlap density between the wire coil unit rings, thus enabling more uniform wire coil cooling.

Accordingly, when the wire coil cooling through the wire coil cooling apparatus of the present invention described above is arranged in stages, the wire coil winding step of extracting and winding the wire coil 1 from the winder 30 and the wound wire coil It is to include a wire coil cooling step of cooling by passing through the coolant tank by immersion in the coolant.

Of course, as described above, the coolant provided in the coolant tank uses hot water, but in the case of hot water, the film is easily broken in the boiling film region due to the disturbance, and thus the polymer is added.

At this time, the polymer is preferably using a sodium polyacrylate (Sodium Polyacrylate) system that makes it possible to lower the hot water temperature to 70 ℃.

In addition, an air bubbling region is formed on at least an edge portion of the wire coil passing through the refrigerant tank 110 to implement a widthwise cooling uniformity of the wire coil.

That is, by forming the free fall section (P) to implement the free drop transfer at at least one point during the transfer of the wire coil in the refrigerant tank 110 to increase the interval between the unit ring of the wire rod coil to achieve the uniform cooling of the wire coil as possible. .

Next, it looks at in detail with respect to the preferred embodiment (configuration) of the wire coil cooling device 100 of the present invention.

First, as shown in Figures 9 to 10, the refrigerant tank 110 of the wire rod coil cooling apparatus 100 of the present invention, a box-shaped structure provided in front of the laying head (30) for winding the raw material The inside may be filled with a refrigerant, preferably hot water (HW).

The coolant tank 110 may be provided with a level sensor (L) for maintaining hot water at a constant level and a temperature sensor (S) for temperature control of the hot water at an appropriate position on the inner wall thereof. It is electrically connected with the device control unit (C).

In addition, a transfer table 150 for transferring the cooled wire coil 1 ′ that is passed while being deposited in hot water as a refrigerant is disposed at the outlet side of the refrigerant tank 110.

On the other hand, the length of such a coolant tank 110 may be provided with a suitable length to implement a proper cooling of the wire rod coil, the transfer table 150 is to be associated with the integrator 60 shown in FIG. In addition, it may be possible to implement the cooling of the final wire coil by arranging the blower unit 50 at the lower part of the transfer table again.

Next, as shown in Figures 9 and 10, the wire coil transfer means 130 provided to the refrigerant tank in the wire coil cooling device 100 of the present invention, the refrigerant deposition of the wire coil in the exit direction from the inlet side of the refrigerant tank. It includes a feed roller 132 provided in a predetermined pattern to enable the discharge after.

At this time, preferably, as shown in Figure 9, the transfer rollers 132 and the refrigerant inlet section (A1) and is arranged in close proximity to the ring-head 30 for entering the refrigerant tank of the wire rod (1) and The wire coil 1 is continuously arranged in the wire coil coolant deposition section A2 for enabling the deposition of the wire coil 1, ie, the hot water HW, and the wire coil discharge section A3 arranged to allow the coolant tank to be discharged from the wire coil. It is preferable.

That is, the coolant tank inlet and outlet sections correspond to the height of the coolant tank, and the first and last transfer rollers are arranged higher than the coolant tank sidewalls, and are curved between the coolant tank side and the discharge section while horizontally depositing the wire coil in hot water. The wire coil refrigerant deposition section is arranged.

Therefore, the wire coil 1 is wound in a ring shape while being extracted from the laying-head 30, and is transported while being deposited on the feed roller 132, and is naturally deposited in hot water and discharged.

On the other hand, as shown in Figure 9, in the refrigerant deposition section (A2) to form a drop section (P) at least at one point where the installation position of the transfer rollers 132 are arranged with a height.

That is, in the fall section P as described above, since the interval between the unit rings of the wire rod is wider as shown in FIG. 20, the wire rod coil passing through the free fall section can be cooled more uniformly in the width direction.

Next, preferably, the wire coil cooling device 100 of the present invention further includes a dust collecting means 170 provided on the upper side of the inlet side of the refrigerant tank 110.

That is, as described above, steam and other gases are raised at the moment of being deposited in hot water, which is a high temperature wire coil, and thus, the dust collecting means 170 collects and processes such steam, and specifically, separate Although not indicated by reference numerals, a dust collecting line in which a dust collecting duct and a pump are connected may be provided in connection.

Next, preferably the wire coil cooling apparatus 100 of the present invention, as shown in Figure 9, may further include a refrigerant supply means 190 associated with the refrigerant tank 110, such a refrigerant supply That is, the hot water supply means may be operated in conjunction with the level sensor (L) in the refrigerant tank described above.

That is, as can be seen in Figures 9 and 10, the supply line 196 associated with the refrigerant (hot water) storage tank (supply tank) 192 penetrates the bottom of the refrigerant tank and supplies the supply port 198 at the bottom of the refrigerant tank. The hot water is supplied into the refrigerant tank from the hot water reservoir 192 when the pump 194 operates.

At this time, the pump 194 is associated with the level sensor (L) through the device control unit (C), so if the level of the hot water in the refrigerant tank is lowered, the level sensor detects this, and automatically through the device control unit (C) Since the hot water is supplied into the refrigerant tank, the level of the hot water is automatically controlled, and thus a constant level is always maintained, so that the wire rod coil passing through the transfer line of the wire rod coil is always stably deposited and cooled.

In addition, as shown in Figure 9, the outlet side of the coolant tank 110 is provided with a hot water receiving port 199 below the transfer roller 132, which is a pipe (196 ') having a pump (194'). It is connected to the hot water storage tank 192 through.

Therefore, when the cooled wire coil 1 ′ is extracted from the outlet side of the coolant tank 110, the overflowed hot water HW may be circulated back to the storage tank and reused.

On the other hand, as described above, the refrigerant temperature control means 210 for maintaining the temperature of the refrigerant, that is, the hot water between 70-99 ℃ inside the refrigerant tank 110 of the present invention, for example, heating heater (heating coil) This heating heater may be associated with the device control unit (C) through the power supply (PU).

In addition, although the refrigerant temperature control means 210 is not specifically illustrated in the drawings, there is no problem in the application of a steam pipe or a rod-shaped heating heater through which high temperature steam passes, but the refrigerant tank of the temperature control means. You will need to seal the joints.

Therefore, when the temperature inside the tank of the hot water, which is the refrigerant, is sensed through the temperature sensor S provided on the inner wall of the refrigerant tank 110, the heating heater, which is the temperature control means 210 through the device control unit C, in real time. While the operation is controlled, the hot water temperature inside the refrigerant tank can be properly maintained at a desired temperature.

Next, as described above, as shown in FIGS. 9 and 10, in the refrigerant tank of the wire coil cooling device 100 of the present invention, a bubbling area corresponding to the widthwise edge portion of the wire rod coil to be conveyed. It further comprises bubbling means (170) provided to form (B) is configured to control the wire coil cooling capacity.

That is, the bubbling means 170, bubbling area for intensively bubbling the edge portion in the width direction of the wire coil (1) conveyed in the state of being passed through the inside of the refrigerant tank and deposited in hot water as shown in FIG. (B) is formed.

Therefore, in addition to hot water and polymer addition, the cooling ability of the edge of the wire coil having the highest overlapping density is increased, thereby enabling more uniform cooling.

At this time, more specifically, the bubbling means 170, as shown in Figure 9, the air supply pipe 238 through the main line 234 associated with the air pump 232 and the refrigerant tank from the bottom properly wired In accordance with the transfer line of the coil, a predetermined pattern, that is, disposed on the edge of the wire coil to be transported as shown in Figure 10, the air supply pipe 238 is provided with an air spray nozzle 239 for bubbling.

Accordingly, when the pump of the main line is operated, bubbling is performed through each air injection nozzle 239, and the control valves 236 provided at the main line are electrically connected to the device control unit C. It is possible to control the bubbling operation through the control unit (C).

That is, in the case of the wire coil cooling device 100 of the present invention, bubbling can be controlled through the device control unit. For example, although schematically illustrated in the drawing, the pattern of the air spray nozzles installed in the main line is adjusted. By arranging the control valve, the bubbling area may be adjusted to the desired shape.

Next, Figure 11 shows the refrigerant tank installation structure of the feed roller 132 of the wire coil transfer means 130 of the present invention.

That is, as shown in Figure 11, the rotating shaft 134 of the feed roller 132 passes through the bearing 136 installed through the refrigerant tank, the gasket 142 for watertightness is interposed on the outer edge of the bearing, the gasket The grease supply port 140 for watertightness and wear protection may be associated with the bearing (shown schematically in the drawing).

Therefore, in the case of the present invention, since the transfer of the wire coil is required to be deposited, the feed roller 132 disposed below the level of the hot water (HW) of the feed roller is connected to the drive motor (not shown) and the coupling 138 The rotating shaft 134 is stably rotated through the bearing, while the gasket and the grease may smoothly rotate, as well as maintain the watertightness of the refrigerant tank passing portion of the rotating shaft of the feed roller.

On the other hand, it is more preferable that a box-shaped hot water and foreign matter (grease) container 144 is provided at the lower portion of the rotating shaft to the outside of the coolant tank, and since the coolant tank supply is controlled as described above, the hot water is bearing. It is not a problem if some leakage occurs.

Such an effective length of the refrigerant tank 110 of the present invention is about 24m, which determines the interval of hot water deposition in which the actual polymer of the wire rod 1 is added, and thus, it is preferable to be properly adjusted in advance, and each transfer. Although the roller is schematically illustrated in the drawings, it is possible to provide a single drive motor to drive the feed roller of the 4m section by the chain drive method, and thus the feed rollers 132 can differentiate the feed rate by approximately six sections. have.

Therefore, it is also possible to gradually increase the feed rate in the refrigerant tank section of the wire rod to 10 to 20%.

On the other hand, the free fall section P for increasing the distance between the unit rings of the wire rod coil described above is shown as one section in the drawing, but if the coolant tank is 24m it is to have a free fall width of about 100mm at 8m and 16m position. desirable.

As a result, it is possible to reduce the overlap density of the wire rod coil through the section speed control and the drop section of the feed rollers.

On the other hand, the injection speed of the air to form the bubbling area (B) through the bubbling means 230 described above is 1 ~ 5 m / s is suitable, for example, if the air spraying temperature during bubbling is higher than the above range, The boiling film around the deposited wire is broken, causing nuclear boiling, which causes the development of low temperature tissue.

At this time, as shown in FIG. 10, the bubbling in the refrigerant tank also provides a stirring action for uniformly spreading the addition distribution when the polymer which suppresses the boiling film cracking is added to the hot water as described above. The concentration distribution of will be uniformed throughout the hot water. That is, in the case of the present invention is to avoid the need for a separate stirring means.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit or scope of the invention as set forth in the claims below. It is to be understood that one of ordinary skill can easily know.

1 .... Wire rod coil 30 .... Winding machine
100 .... wire rod coil cooling device of the present invention
110 .... Refrigerant tank 130 .... Wire rod transfer means
132 .... Feed roller 150 .... Feed table
170 .... Collecting means 190 .... Refrigerant supply means
210 .... Refrigerant temperature control means 230 .... Bubbling means
A1 ... Refrigerant tank entry section A2 ... Wire rod coil coolant deposition section
A3 .... Wire rod discharge section P .... Wire rod free fall section

Claims (9)

A coolant tank provided with a coolant which is cooled and temperature-controlled while the wire rod coil is deposited; And, a wire coil transfer means provided in the refrigerant tank, wherein a transfer table for transferring the cooled wire coil is provided at the exit side of the refrigerant tank.
The wire coil transfer means provided in the refrigerant tank includes: a refrigerant tank inlet section of the wire coil; and a wire coil refrigerant deposition section in which cooling is performed through the refrigerant deposition of the wire coil; And a feed roller arranged in a wire rod discharge section provided to enable discharge of the refrigerant tank of the cooled wire rod coil.
The coolant deposition section of the wire coil is provided with at least one free drop section which is arranged so that the feed roller has a height difference, so as to adjust the ring-to-ring spacing of the wire coil,
It includes a temperature control means of the refrigerant consisting of a heating heater provided in the refrigerant tank, comprising a dust collecting means provided on the wire rod inlet side of the refrigerant tank, and increases the cooling capacity of the wire coil while being connected to the refrigerant tank. And a bubbling means provided to smoothly stir the refrigerant and the added polymer.
The method of claim 1,
The refrigerant filled in the refrigerant tank and temperature-controlled, wire rod coil cooling apparatus characterized in that it is provided with hot water temperature controlled to prevent the formation of low-temperature structure of the wire rod by supercooling.
The method of claim 1,
The refrigerant is further added to the refrigerant, the wire coil cooling apparatus, characterized in that the polymer is made of sodium polyacrylate (Sodium Polyacrylate) system.
delete delete delete delete 4. The method according to any one of claims 1 to 3,
Wire coil cooling apparatus further comprises a refrigerant supply means associated with the refrigerant tank.
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