KR20120044177A

KR20120044177A - Cooling device for continuous caster

Info

Publication number: KR20120044177A
Application number: KR1020100105600A
Authority: KR
Inventors: 최홍열
Original assignee: 현대제철 주식회사
Priority date: 2010-10-27
Filing date: 2010-10-27
Publication date: 2012-05-07

Abstract

PURPOSE: A cooling device for a continuous casting machine is provided to collect the remaining cooling water after cooling of a slab, thereby preventing the overcooling of the slab and reducing water consumption. CONSTITUTION: A cooling device for a continuous casting machine comprises a nozzle unit(10), a collecting unit(20), and a collecting container(30). The nozzle unit sprays cooling water to a slab passing through a mold. The collecting unit collects the cooling water, which is scattered from the slab and dropped. The nozzle unit and the collecting unit are arranged between rollers guiding a slab. The collecting unit is arranged close to the slab and is declined from the slab in order to discharge collected cooling water. The collecting container stores the cooling water dropped from the cooling unit.

Description

Cooling device for player {COOLING DEVICE FOR CONTINUOUS CASTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chiller for a player, and more particularly, to a chiller for a player that collects cooling water falling downward and induces uniform cooling of the slab.

Generally, players are provided with tundishes, molds, rolls and coolers.

The molten steel refined in the steel mill is transferred to a vessel called ladle, and the tundish temporarily stores the molten steel supplied from the ladle and distributes it to each strand.

The mold causes the molten steel injected from the tundish to undergo initial solidification into a uniform shape, and the roll guides the slab solidified by the mold.

The cooler cools the slabs by injecting coolant into the slabs exiting the mold. A plurality of such coolers are arranged at various positions to uniformly spray coolant to the slab.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

It is an object of the present invention to provide a cooling device for a player which maintains uniform cooling of the slab by collecting the coolant falling downward after contacting and scattering with the slab.

The present invention to achieve the above object is a nozzle unit for injecting cooling water to the slab passing through the mold; And it provides a cooling device for a player comprising a collecting unit for collecting the cooling water scattered from the slab to fall.

The nozzle portion and the collecting portion is characterized in that disposed between the roller for guiding the slab.

The collection unit is disposed closer to the slab, characterized in that the inclined surface having a downward slope as the distance away from the slab is characterized in that for discharging the collected cooling water.

Cooling apparatus for a player according to an embodiment of the present invention is characterized in that it further comprises a container for storing the coolant falling from the collecting unit.

The apparatus for cooling a player according to the present invention has an effect of preventing the coolant from excessively flowing the coolant into the specific area of the slab by collecting the remaining coolant after the collecting unit cools the slab.

Cooling apparatus for a player according to the present invention has the effect of saving resources by the coolant collected in the collecting unit is stored and reused in the container.

1 is a view schematically showing a playing process in which a cooling device for a player according to an embodiment of the present invention is disposed.
2 is a view schematically showing a cooling device for a player according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a cooling device for a player according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.

FIG. 1 is a view schematically showing a playing process in which a player cooling device according to an embodiment of the present invention is disposed, and FIG. 2 is a view schematically showing a player cooling device according to an embodiment of the present invention.

1 and 2, the cooling device 1 for a player according to an exemplary embodiment of the present invention includes a nozzle unit 10 and a collecting unit 20.

The nozzle unit 10 sprays the coolant to the slab 100, and the collecting unit 20 collects the coolant that is scattered while falling against the slab 100.

That is, the molten steel refined in the steelmaking process is transported in a container called ladle 110, and the tundish 120 temporarily storing molten steel supplied from the ladle 110 distributes the stored molten steel to each strand.

The mold 130 is installed below the tundish 120, and the molten steel discharged from the tundish 120 is initially solidified in a predetermined shape by the mold 130. In this way, the initial solidification of the mold 130 to a certain shape is referred to as the slab (100).

The rollers 140 disposed below the mold 130 are arranged to have a plurality of predetermined intervals, and guide the slab 100 to the next process.

Roller 140 is disposed on both sides of the slab 100, the cooling water is injected to the slab 100 exposed between the roller 140. Thus, the nozzle unit 10 and the collecting unit 20 are disposed between the rollers 140.

The nozzle unit 10 is provided with a supply pipe 11 and a nozzle 12.

The supply pipe 11 is fixed to the ground or other fixture and has a height corresponding to the mold 130. This supply pipe 11 supplies cooling water.

The nozzle 12 communicates with the supply pipe 11 and protrudes toward the slab 100. The nozzle 12 sprays coolant to the outside of the slab 100 exposed to the space between the rollers 140.

The supply pipe 11 is provided with a plurality of nozzles 12, each nozzle 12 sprays the coolant to the slab 100 exposed to the space between the rollers 140.

Due to the time difference in which the slab 100 is moved downward, the nozzle 12 may sequentially spray the coolant according to the placement height.

The amount of cooling water sprayed from the nozzle 12 is set by experiment and experience for uniform cooling of the slab 100.

Therefore, when the coolant is injected into the slab 100 by the set amount, the slab 100 is uniformly cooled by the coolant.

A plurality of supply pipes 11 are installed to correspond to the width of the slab 100, and nozzles 12 are installed in each of the supply pipes 11, and cooling water is evenly sprayed to the outside of the slab 100.

At this time, each nozzle 12 is provided with a valve to selectively spray the cooling water, and to adjust the amount of cooling water injection, respectively.

Cooling water that is in contact with the hot slab 100 is vaporized and evaporated, partly scattered.

The collecting part 20 corresponds to the number of nozzles 12 provided in each supply pipe 11, and is coupled to and fixed to each supply pipe 11.

The collecting unit 20 collects the cooling water scattered and disposed close to the slab 100. The collecting portion 20 is formed with an inclined surface 21 having an inclination downward as it moves away from the slab 100.

The coolant collected by the collecting unit 20 is moved in one direction through the inclined surface 21 and then falls.

Therefore, even if the coolant sprayed from any of the nozzles 12 to cool the set area of the slab is scattered, the inflow into the area outside the set area of the slab 100 is suppressed by the collecting unit 20.

For this reason, only the set amount of cooling water is reached on the surface of the slab 100 to cool the slab 100, thereby preventing overcooling of the slab 100.

Cooling apparatus 1 for the player according to an embodiment of the present invention is provided with a collecting container 30 in which the coolant falling from the collecting unit 20 is stored.

The collecting container 30 is located below the collecting part 20 which is located at the bottom of the plurality of collecting parts 20, and stores the coolant falling from each collecting part 20.

Cooling water stored in the sump (30) is introduced into the supply pipe 11 can be reused to cool the slab (100).

Referring to the operation of the player cooling device according to an embodiment of the present invention having the structure as described above are as follows.

The molten steel stored in the tundish 120 is initially solidified into a predetermined shape while passing through the mold 130, and solidified by the cooling water injected through the nozzle unit 10 to become the slab 100. This slab 100 is guided to the next process by the roller 140.

Each nozzle 12 of the nozzle unit 10 communicates with the supply pipe 11 for supplying the cooling water, and sprays the cooling water to the slab 100 exposed between the rollers 140.

By the cooling water injection of the nozzle 12, the slab 100 is uniformly cooled and solidified.

At this time, the cooling water for cooling the slab 100 is mostly evaporated due to the contact with the slab 100, but a portion of the cooling water from the slab 100 or humid water drops as the cooling water falls.

The collecting unit 20 collects the coolant that is dropped close to the slab 100. Since the inclined surface 21 is formed in the collecting unit 20, the coolant seated on the collecting unit 20 is moved along the inclined surface 21 to fall.

The coolant falling from the collecting unit 20 is stored in the collecting container 30. The coolant stored in the sump 30 may be reused as the coolant flowing into the supply pipe 11 to cool the slab 100.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: nozzle part 11: supply pipe
12: nozzle 20: collecting part
21: slope 30: container
100: slab 110: ladle
120: tundish 130: mold

Claims

A nozzle unit for injecting cooling water into the slab passing through the mold; And
Cooling apparatus for a player characterized in that it comprises a collecting unit for collecting the coolant splashed by falling from the slab.

The method of claim 1,
And said nozzle portion and said collection portion are disposed between rollers for guiding said slab.

The method of claim 2,
The collection unit is disposed closer to the slab, the further away from the slab is formed with an inclined surface having an inclined downward downward to discharge the collected cooling water.

The method of claim 1,
Cooling apparatus for a player characterized in that it further comprises a container for storing the coolant falling from the collecting unit.