KR20120132797A - Heating device of slab - Google Patents

Heating device of slab Download PDF

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Publication number
KR20120132797A
KR20120132797A KR1020110051142A KR20110051142A KR20120132797A KR 20120132797 A KR20120132797 A KR 20120132797A KR 1020110051142 A KR1020110051142 A KR 1020110051142A KR 20110051142 A KR20110051142 A KR 20110051142A KR 20120132797 A KR20120132797 A KR 20120132797A
Authority
KR
South Korea
Prior art keywords
slab
unit
heating
outlet
heating unit
Prior art date
Application number
KR1020110051142A
Other languages
Korean (ko)
Inventor
이관형
임갑수
박영국
Original Assignee
현대제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대제철 주식회사 filed Critical 현대제철 주식회사
Priority to KR1020110051142A priority Critical patent/KR20120132797A/en
Publication of KR20120132797A publication Critical patent/KR20120132797A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40—Arrangements of controlling or monitoring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1858—Doors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D2099/006—Auxiliary heating, e.g. in special conditions or at special times

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

PURPOSE: A slab heating device is provided to heat a slab by automatically driving an auxiliary heating unit according to the opening and closing of an exit. CONSTITUTION: A slab heating device(1) comprises a heating unit(10) for heating a slab(100), a door unit(20) for opening and closing an exit(11) of the heating unit, and an auxiliary heating unit(30) for heating the side of the slab waiting at the exit. [Reference numerals] (50) Control unit

Description

Slab heating device {HEATING DEVICE OF SLAB}

The present invention relates to a slab heating apparatus, and more particularly, to a slab heating apparatus which suppresses the occurrence of partial cooling due to contact with external air while the slab is waiting to be extracted to the outside.

In general, a heating apparatus is used for heating a slab in a hot rolling process of an ironworks.

The slab heater not only heats the slab to the desired set temperature, but also induces the slab to have a uniform temperature throughout.

The slab heating device is gradually moved from the inlet to the outlet while repeating the process of being moved by the walking beam.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

An object of the present invention is to provide a slab heating apparatus which suppresses partial cooling of the slab and keeps the slab uniform in temperature.

The present invention is a heating unit for heating the slab in order to achieve the above object; A door part for opening and closing an outlet of the heating part; And it provides a slab heating apparatus comprising a secondary heating unit for heating the side of the slab waiting at the outlet.

The slab heating apparatus according to the present invention includes a sensing unit for detecting that the outlet is open; And a control unit which receives the signal of the detection unit and controls the auxiliary heating unit.

The auxiliary heating unit is characterized in that a plurality of arranged in the longitudinal direction of the slab.

The door unit is mounted on the outside of the heating unit and the cylinder is variable in length; And a door plate mounted to the cylinder and opening and closing the outlet.

The detection unit is mounted to the outside of the heating unit is characterized in that for detecting the opening and closing of the exit in contact with the door plate.

The control unit stops driving the auxiliary heating unit when the outlet is opened by sensing the sensing unit, and drives the auxiliary heating unit when the outlet is closed by sensing the sensing unit.

The slab heating apparatus according to the present invention has an effect of preventing the slab in the air in proximity to the outlet to be cooled by the outside air to maintain the slab at a uniform temperature.

The slab heating apparatus according to the present invention has the effect of heating the slab by the auxiliary heating unit is automatically driven according to the opening and closing of the outlet.

1 is a view schematically showing a state in which the outlet is closed in the slab heating apparatus according to an embodiment of the present invention.
2 is a view schematically showing a state in which the outlet is opened in the slab heating apparatus according to an embodiment of the present invention.
3 is a view schematically showing an arrangement state of the auxiliary heating unit in the slab heating apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a slab heating apparatus according to the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a view schematically showing a state in which the outlet is closed in the slab heating apparatus according to an embodiment of the present invention, Figure 2 is a schematic view of the state in which the outlet is opened in the slab heating apparatus according to an embodiment of the present invention. 3 is a view schematically showing the arrangement of the auxiliary heating unit in the slab heating apparatus according to an embodiment of the present invention.

1 to 3, the slab heating apparatus 1 according to an embodiment of the present invention is provided with a heating unit 10, a door unit 20, and an auxiliary heating unit 30.

The heating unit 10 uniformly heats the slab 100. The working beam 13 of the heating unit 10 sequentially moves the slab 100, and the heating elements 12 embedded in the heating unit 10 raise the temperature of the heating unit 10 to increase the temperature of the slab 100. Heat to set temperature.

The slab 100 is introduced into the inlet of the heating unit 10 and discharged to the outlet 11 and then moved to the rolling process by a separate feed roller.

The door part 20 opens and closes the outlet 11 of the heating part 10. Therefore, when the door part 20 opens the outlet 11, the slab 100 waiting at the outlet 11 is discharged to the exterior of the heating part 10 by the extractor.

Since the door part 20 is difficult to completely close the outlet 11, external air flows in through the outlet 11. For this reason, the slab 100 waiting to be close to the outlet 11 is lower than the set temperature.

The auxiliary heating unit 30 directly sprays a flame on the slab 100 waiting at the outlet 11 to prevent partial cooling of the slab 100 due to external air.

The auxiliary heating unit 30 is disposed in the plural in the longitudinal direction of the slab 100, and evenly heats one side of the slab 100 in contact with the external air (see Fig. 3).

The slab heating apparatus 1 according to an embodiment of the present invention is further provided with a sensing unit 40 and a control unit 50.

The sensing unit 40 detects that the outlet 11 of the heating unit 10 is opened due to the driving of the door unit 20.

The controller 50 is connected to the sensing unit 40 to control the auxiliary heating unit 30 by receiving the exit signal 11.

For example, the controller 50 drives the auxiliary heating unit 30 in the state where the outlet 11 is closed to heat the slab 100, and the auxiliary heating unit 30 in the state where the outlet 11 is opened. To stop.

The door unit 20 according to an embodiment of the present invention is provided with a cylinder 21 and a door plate 22.

The cylinder 21 is mounted on the outside of the heating section 10. The cylinder 21 is variable in length by hydraulic pressure.

The door plate 22 is mounted to the cylinder 21 to open and close the outlet 11. The door plate 22 has a cross-sectional shape corresponding to the outlet 11.

The sensing unit 40 according to an embodiment of the present invention is mounted outside the heating unit 10. The detector 40 detects the movement of the door plate 22 to recognize whether the outlet 11 is opened or closed.

For example, when the length of the cylinder 21 is reduced, the door plate 22 is in contact with the sensing unit 40 while rising, and the sensing unit 40 recognizes that the outlet 11 is opened through the control unit ( Send a signal to 50).

On the other hand, the sensing unit 40 may protrude from the outside of the heating unit 10 to serve as a stopper of the door plate 22.

Referring to the operation of the slab heating apparatus according to an embodiment of the present invention having the structure as described above are as follows.

The slab 100 introduced into the inlet of the heating unit 10 is gradually moved by the working beam 13 to reach the outlet 11. By the heating unit 10, the slab 100 is heated to a set temperature.

The outlet 11 of the heating part 10 is closed by the door plate 22, and the door plate 22 opens and closes the outlet 11 as the length of the cylinder 21 is changed.

A minute gap is formed between the outlet 11 of the heating part 10 and the door plate 22, and when the outside air flows into the heating part 10 through the gap, the slab is close to the outlet 11 and is waiting. 100 is cooled.

On the other hand, the auxiliary heating unit 30 is mounted inside the heating unit 10. The auxiliary heating unit 30 is disposed close to the outlet 11 and directly heats the slab 100 that is waiting at the outlet 11.

Therefore, it is possible to prevent cooling of the slab 100 waiting at the outlet 11 by heating of the auxiliary heating unit 30.

The auxiliary heating unit 30 sprays the flame according to the control signal of the controller 50. That is, when the sensing unit 40 detects the closed state of the outlet 11, the control unit 50 drives the auxiliary heating unit 30.

When the detector 40 detects the movement of the door plate 22 and recognizes that the outlet 11 is opened, the controller 50 stops driving of the auxiliary heating unit 30.

When the driving of the auxiliary heating unit 30 is stopped, the extractor withdraws the slab 100 to the outside of the heating unit 10 through the outlet (11).

When the slab 100 is pulled out by the extractor, the door plate 22 is moved to close the outlet 11, and the slab 110 waiting for being close to the outlet 11 is heated by the auxiliary heating unit 30. do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

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

10: heating section 11: outlet
20 door 21 cylinder
22: door plate 30: auxiliary heating unit
40: detection unit 50: control unit

Claims (6)

A heating unit for heating the slab;
A door part for opening and closing an outlet of the heating part; And
Slab heating apparatus comprising an auxiliary heating unit for heating the side of the slab waiting at the outlet. The method of claim 1,
A detector for detecting the opening of the outlet; And
Receiving a signal of the sensing unit slab heating apparatus further comprises a control unit for controlling the auxiliary heating unit. 3. The method according to claim 1 or 2,
The slab heating apparatus characterized in that the plurality of auxiliary heating unit is arranged in the longitudinal direction of the slab. The method of claim 2, wherein the door unit
A cylinder mounted outside the heating unit and having a variable length; And
And a door plate mounted to the cylinder and opening and closing the outlet. The method of claim 4, wherein the detection unit
The slab heating apparatus is mounted to the outside of the heating unit to detect the opening and closing of the outlet in contact with the door plate. The method of claim 5, wherein the control unit
When the outlet is opened by the detection of the detection unit stops the drive of the auxiliary heating unit,
Slab heating apparatus characterized in that for driving the auxiliary heating unit when the outlet is closed by the detection of the sensing unit.
KR1020110051142A 2011-05-30 2011-05-30 Heating device of slab KR20120132797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110051142A KR20120132797A (en) 2011-05-30 2011-05-30 Heating device of slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110051142A KR20120132797A (en) 2011-05-30 2011-05-30 Heating device of slab

Publications (1)

Publication Number Publication Date
KR20120132797A true KR20120132797A (en) 2012-12-10

Family

ID=47516258

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110051142A KR20120132797A (en) 2011-05-30 2011-05-30 Heating device of slab

Country Status (1)

Country Link
KR (1) KR20120132797A (en)

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