KR20230008933A - Apparatus for cooling slag and method therefor - Google Patents

Abstract

In order to rapidly cool slag by increasing the slag cooling efficiency, provided is a slag cooling apparatus including a drilling rod inserted into the slag in a slag port to form a hole in the slag, and a drilling machine for inserting the drilling rod back and forth to insert the same into the slag.

Description

Slag cooling device and cooling method {APPARATUS FOR COOLING SLAG AND METHOD THEREFOR}

The present disclosure relates to an apparatus and method for cooling slag contained in a slag porter.

In general, slag generated in the steelmaking process is put into a separately prepared slag pot using equipment such as a skimmer, and is transferred to a slag yard using a transfer cart to be reprocessed.

After the slag is cooled in the yard for a certain period of time, the cooled slag is separated from the slag port by the molding operation of overturning the slag port.

Cooling water may be used for slag cooling. A large amount of cooling water is sprayed onto the slag surface in the slag pot to cool the slag. The slag is cooled from the surface to the inside by the cooling water sprayed onto the slag.

However, this conventional slag cooling method has a problem in that it takes a lot of time until the slag inside is cooled because the slag is gradually cooled from the surface of the slag to the inside of the slag. In addition, there is a problem of polluting the surrounding environment due to the generation of excessive dust due to steam doubling.

Accordingly, many studies are being conducted to solve the above conventional problems. Republic of Korea Patent Registration No. 10-1012466 (title of invention: slag cooling cover and slag cooling method using the same) discloses a structure that increases cooling efficiency by perforating slag.

However, conventional structures are not easy to actually form holes in the slag, so there is a problem in that a lot of time and energy are consumed for hole formation. In addition, perforation is made only at a preset location, and the cooling effect through the hole is not high because the cooling water is not properly penetrated.

In recent years, as interest and regulation on the atmospheric environment are increasing, improving and providing a conventional slag cooling structure can give users many advantages.

An object of the present invention is to provide a slag cooling device and a cooling method capable of cooling slag more quickly by increasing slag cooling efficiency.

An object of the present invention is to provide a slag cooling device and a cooling method capable of increasing drilling efficiency for slag.

An object of the present invention is to provide a slag cooling device and a cooling method capable of maximizing cooling efficiency by effectively injecting cooling water into the slag.

The cooling device of the present embodiment may include a piercing rod inserted into the slag in the slag pot to form a hole in the slag, and a piercing machine for moving the piercing rod forward and inserting the slag into the slag.

The perforator may have a structure in which the perforation rod is rotated and inserted into the slag.

The perforator may have a structure that applies a striking force to the perforation rod.

The puncture rod may include a rod part mounted on the driving part and a bit installed at a tip of the rod part to crush slag according to rotation of the puncture rod.

The perforation rod may include a spiral member installed below the rod unit and having at least one spiral groove formed on an outer circumferential surface to discharge the crushed slag upward.

The perforation rod may further include an attachment protruding in an axial direction from the tip of the bit.

The cooling device may further include an injection unit for injecting cooling water into the hole of the slag through the puncture rod.

The injection unit may include a passage extending along the inside of the drilling rod and discharging cooling water through an outlet at a tip of the drilling rod, and a supply unit supplying cooling water to the passage.

An outlet through which cooling water is discharged may be formed in the attachment.

The cooling method of the present embodiment includes the steps of determining the hole formation position of the slag contained in the slag pod, moving the puncher equipped with the puncher rod to the hole position, and moving the puncher rod forward while rotating the puncher rod by driving the puncher. It may include forming holes in the furnace slag.

The step of forming a hole in the slag with the drilling rod may further include injecting cooling water into the hole in the slag.

In the step of injecting the cooling water, the cooling water may be directly injected into the hole through a puncture rod inserted into the slag.

As described above, according to the present embodiment, by drilling slag with a drill structure, it is possible to form a hole in the slag more efficiently and quickly while the slag is discharged to the outside of the hole. Accordingly, it is possible to further shorten the time required for slag drilling and slag cooling.

Depending on the condition and state of the slag, it is possible to freely drill a hole in the required position, so that it can be cooled quickly regardless of the state of the slag.

By effectively injecting cooling water through the drilled hole along with the slag drilling, the slag cooling efficiency can be further maximized.

1 is a schematic diagram of a slag cooling device according to this embodiment.
2 is a schematic diagram showing a slag drilling position according to the present embodiment.
3 is a schematic diagram showing the configuration of a drill of the slag cooling device according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereby, and the present invention is only defined by the scope of the claims to be described later. Embodiments described below may be modified in various forms without departing from the concept and scope of the present invention. Where possible, identical or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is only for referring to specific embodiments and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the following examples are only preferred examples of the present invention, but the present invention is not limited to the following examples.

1 schematically shows a slag cooling device according to this embodiment.

As shown in Figure 1, the cooling device of this embodiment is inserted into the slag 110 (110) in the slag pot 100 to form a hole (P) in the slag 110, the drilling rod 10, the drilling rod It may include a puncher 20 for inserting the slag 110 into the interior by applying a rotational force while moving the 10 forward.

In this way, the drilling rod 10 moves forward while being rotated in the form of a drill, and penetrates into the inside while crushing the slag 110, so that the hole P can be formed more effectively and quickly in the slag 110.

The drilling machine 20 may have a structure for inserting the drilling rod 10 into the slag 110 by applying a rotational force and a striking force. The drilling machine 20 may include, for example, a drifter 22 to which a drilling rod 10 is mounted and which applies rotational force and a striking force to the drilling rod 10, and a guide rail 24 on which the drifter moves. .

The drifter 22 forms a hole P in the slag 110 with the drilling rod 10 while advancing along the guide rail 24 in a state where the drilling rod 10 is mounted.

In this embodiment, the drilling machine 20 may be used by being mounted on the arm 32 of the excavator 30 . Therefore, without building a separate facility for fixing and moving the driller 20 on the slag port 100, the driller 20 is quickly moved to a required place or position using the excavator 30 to remove the slag 110. drilling operations can be performed. Accordingly, the facility configuration can be further simplified.

The operator manipulates the arm 32 of the excavator 30 to fix the drilling machine 20 to a required position, while the drifter 22 is moved along the guide rail 24 to move the drilling rod 10 to the slag 110. ) is inserted into In this process, the drifter 22 applies rotational force and striking force to the perforation rod 10, so that the hole P can be quickly formed in the slag 110.

The movement of the drilling machine 20 using the arm 32 of the excavator 30 or the driving of the drilling machine 20 may be operated wirelessly through a remote controller. Accordingly, the operator can operate the device even from a distance to cool the slag 110, thereby ensuring the safety of the operator in a high-temperature and dangerous working environment.

As shown in FIG. 2, in this embodiment, the holes P by the perforation rod 10 may be formed at regular intervals along the circumferential direction, respectively, at the center and the outer periphery of the slag pot 100.

The center may mean a position relatively close to the center of the slag pot 100, and the outer periphery may mean a position relatively close to the outer circumferential side of the slag pot 100.

The distance between the holes P formed along the central portion is relatively narrower than the distance between the holes P formed along the outer periphery, and may be formed at a tighter interval.

As shown in FIG. 1, in the slag pot 100, the slag 110 is piled high toward the center to form a surface layer with a lower slope toward the outer periphery. Accordingly, by forming the gap between the holes P in the central part densely, it is possible to further increase the cooling efficiency of the slag 110 in the central part of the slag 110 loaded relatively high.

Therefore, the slag 110 can be uniformly cooled throughout the slag pot 100 regardless of the loading height of the slag 110 .

3 shows a puncture rod according to this embodiment.

As shown, the drilling rod 10 may include a rod unit 12 mounted on a drive unit and a bit 14 installed at the tip of the rod unit 12 to crush the slag 110 according to the rotation of the pointed rod. there is.

When the drilling rod 10 is rotated by the drilling machine 20, the bits 14 and 14 of the drilling rod 10 easily dig into the slag 110 while crushing the slag 110. Therefore, it is possible to quickly form the hole P in the slag 110.

The rod part 12 is a long-extended bar structure, and may be formed with a sufficient length corresponding to the drilling depth for the slag 110.

The bit 14 is mounted on the front end of the rod part 12 and crushes the slag 110 while digging into the slag 110 to form a hole P. The bit 14 is formed with a relatively larger diameter than the rod portion 12 . Thus, in the process of forming a hole while the bit 14 crushes the slag, the rod part 12 is spaced apart from the inner surface of the hole and does not interfere.

The shape of the bit 14 may be variously modified. The bit 14 may be detachably coupled to the rod part 12 . Accordingly, various bits 14 may be replaced and used when necessary according to the wear of the bit 14 or the state of the slag 110 .

In addition, the drilling rod 10 may further include a spiral member 40 for discharging the pulverized slag crushed by the bit 14 upward. As shown in FIG. 3 , the spiral member 40 may have a structure in which at least one spiral groove 42 is formed on an outer circumferential surface thereof and installed below the rod part 12 .

The spiral member 40 may be installed at the lower end of the rod part 12 . The spiral member 40 is fixed to the rod part 12 and can be rotated as the rod part 12 rotates. A plurality of grooves 42 are formed in a spiral shape on the outer circumferential surface of the spiral member 40 . The pulverized slag can be moved upward through the hole P along the spiral groove 42 .

The spiral member 40 of this embodiment may be formed with a diameter corresponding to the diameter of the bit 14, that is, the diameter corresponding to the inner diameter of the hole P formed by the bit. Accordingly, the spiral member 40 is rotated in contact with the inner surface of the hole P of the slag 110, and the pulverized slag generated by the bit 14 in the process of forming the hole P is moved upward through the spiral groove 42. can be easily ejected.

In this way, when the slag 110 is crushed by the bit 14, the pulverized slag is immediately discharged upward along the groove 42 of the spiral member 40, so that the pulverized slag interferes with the bit 14. can be minimized. Therefore, while the pulverized slag is immediately removed, the bit 14 continuously crushes and penetrates the slag 110, so that the hole P can be formed in the slag 110 more quickly.

In addition, the drilling rod 10 may further include an attachment 16 protruding in the axial direction from the tip of the bit 14.

Attachment 16 may protrude from the center of the drilling rod 10 to the tip of the bit 14 along the axial direction. Attachment 16 may be formed sharper as the diameter decreases towards the tip. Attachment 16 may be integrally formed with bit 14 .

It is possible to increase the straightness of the perforation rod 10 in the process of forming the hole P by the attachment 16. Accordingly, by forming the hole P while the pointed rod moves accurately, the hole P can be formed more efficiently, and the time required for forming the hole P can also be shortened.

The cooling device of this embodiment may further include an injection unit for injecting cooling water into the hole P of the slag 110 through the perforated rod 10 .

The injection unit may supply cooling water in a state in which a hole P is formed in the slag 110 with the puncture rod 10 . Alternatively, the cooling water may be injected in a state in which the hole P is formed to a set depth.

By injecting the cooling water into the hole P through the drilling rod 10, the cooling water can be more effectively injected into the slag 110 to cool the slag 110.

The injection unit extends along the inside of the drilling rod 10 and includes a passage 52 for discharging cooling water through an outlet 54 at the tip of the drilling rod 10 and a supply unit 50 for supplying cooling water to the passage 52. can do.

The passage 52 may extend from the top of the rod part 12 downward along the central axis. An inlet 53 communicating with the flow path 52 and introducing cooling water supplied from the supply unit 50 may be formed at an upper portion of the rod unit 12 . The supply unit 50 is connected to the inlet 53 of the flow path 52 . The cooling water supplied from the supply unit 50 is injected into the flow path 52 through the inlet 53 .

A separate connector 56 may be installed in the rod part 12 so that cooling water can be supplied to the inlet 53 for the rod part 12 that is rotated. The connector 56 is installed on the rod part 12 to connect between the inlet 53 and the supply part 50. For example, as shown in FIG. 3 , the connector 56 may have a structure that is freely rotated by the rod part 12 while being sealed in close contact with the rod part 12 . The inside of the connector 56 may have a structure in which a groove communicating with the inlet 53 is formed along the inner circumferential surface. A conduit of the supply unit 50 is installed on the outside of the connector 56 and communicates with the inner groove.

Thus, regardless of the rotation of the rod part 12, the inlet 53 can maintain communication with the groove 58 formed on the inner circumferential surface of the connector 56. Therefore, even when the rod part 12 is rotated, the coolant supplied from the supply part 50 may be supplied to the inlet 53 through the groove 58 and discharged through the hole P along the flow path 52.

In this embodiment, an outlet 54 for discharging cooling water may be formed in the attachment 16.

In the case of the drilling rod 10 without the attachment 16, the outlet 54 may be formed at the tip of the bit 14 or the tip of the rod 12.

Accordingly, the cooling water supplied from the supply unit 50 at a set pressure through a pump or the like moves along the flow path 52, is discharged through the outlet 54 of the flow path 52, and is injected into the hole P. .

In this way, since the cooling water is injected through the inside of the drilling rod 10, the cooling water can be sent directly to the deep inside of the hole P. Therefore, cooling by the cooling water is performed deep inside the slag 110, so that the slag 110 can be rapidly cooled. In addition, since the cooling water is directly injected into the deep inside of the hole P, it is possible to reduce the generation of exhaust steam by the cooling water and minimize contamination by dust.

Hereinafter, looking at the process of cooling the slag according to the present embodiment is as follows.

First, the formation position of the hole P of the slag 110 contained in the slag 110 pod is determined. Depending on the shape of the surface profile of the slag 110 loaded in the slag pot 100 or the amount and type of the slag 110, the position or number of holes P for the slag 110 may be appropriately adjusted.

When the position of forming the hole P of the slag 110 is determined, the puncher 20 is moved to the position of the hole P, and the puncher 20 is driven to cut the slag into the drilling rod 10 mounted on the puncher 20. A hole P is formed in (110).

In the case of this embodiment, it is possible to form a hole (P) in the slag 110 while rotating the bit 14 of the drilling rod 10 like a drill. As the bit 14 of the drilling rod 10 rotates, the hole P can be effectively formed while crushing the slag 110 like a drill. A blow may be applied to the perforation rod 10 when the hole P is formed. The bit 14 can dig into the inside of the slag 110 while crushing the slag 110 more easily by the rotational force and the striking force. In this process, the pulverized slag material may be discharged upward along the spiral member 40 from the front end of the bit 14 .

Cooling water may be injected into the hole P of the slag 110 as well as forming the hole P in the slag 110 by the drilling rod 10 . Accordingly, the cooling water may be directly injected into the hole P through the puncture rod 10 inserted into the slag 110.

The slag 110 is cooled by the cooling water injected into the hole P.

When the above process is completed, the drilling rod 10 is pulled out from the hole P of the slag 110, the drilling machine 20 is moved to the next position, and then the hole P is repeatedly formed in the slag 110. do.

In this way, by forming the hole P in the slag 110 like a drill, the hole P can be formed more quickly, and the time required for cooling the slag 110 as a whole can be shortened.

As a result of many experiments, in the case of the conventional cooling method, it took 14 hours to complete cooling for one slag pot 100, whereas in the case of this embodiment, cooling could be completed within 10 hours.

Although exemplary embodiments of the present invention have been shown and described as described above, various modifications and other embodiments may be made by those skilled in the art. All of these modifications and other embodiments are to be considered and included in the appended claims without departing from the true spirit and scope of the present invention.

10: perforation rod 12: rod part
14: bit 16: attach
20: puncher 22: drifter
24: guide rail 30: excavator
32: arm 40: spiral member
42: home 50: supply unit
52: Euro 53: Entrance
54: exit 56: connector

Claims (6)

A drilling rod inserted into the slag in the slag pot to form a hole in the slag, a drilling machine for moving the drilling rod forward and inserting it into the slag,
The perforator is a slag cooling device of a structure that rotates the perforation rod and inserts it into the slag. According to claim 1,
The puncture rod includes a rod part mounted on the driving part, and a bit installed at the tip of the rod part to crush slag according to the rotation of the punctured rod. According to claim 2,
The puncture rod is installed in the lower part of the rod and at least one spiral groove is formed on the outer circumferential surface, and the slag cooling device includes a spiral member for discharging the crushed slag upward. According to any one of claims 1 to 3,
The cooling device further includes an injection unit for injecting cooling water into the hole of the slag through the perforated rod,
The injection part extends along the inside of the perforation rod and includes a flow path for discharging cooling water through an outlet at a tip of the perforation rod, and a supply unit for supplying cooling water to the flow path. Determining the hole formation position of the slag contained in the slag pod;
moving the drilling machine equipped with the drilling rod to the hole position; and
Forming a hole in the slag with a drilling rod by driving the drilling machine to rotate and move the drilling rod forward
Slag cooling method comprising a. According to claim 5,
In the step of forming a hole in the slag with the drilling rod, the step of injecting cooling water into the hole of the slag is further included,
In the step of injecting the cooling water, the cooling water is directly injected into the hole through a perforated rod inserted into the slag.

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