KR20160079948A - Materials charging guide apparatus of reheating furnace - Google Patents

Materials charging guide apparatus of reheating furnace Download PDF

Info

Publication number
KR20160079948A
KR20160079948A KR1020140190238A KR20140190238A KR20160079948A KR 20160079948 A KR20160079948 A KR 20160079948A KR 1020140190238 A KR1020140190238 A KR 1020140190238A KR 20140190238 A KR20140190238 A KR 20140190238A KR 20160079948 A KR20160079948 A KR 20160079948A
Authority
KR
South Korea
Prior art keywords
heating furnace
frame
charging
lift
guide
Prior art date
Application number
KR1020140190238A
Other languages
Korean (ko)
Inventor
김영식
차길업
김영일
Original Assignee
주식회사 포스코
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 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020140190238A priority Critical patent/KR20160079948A/en
Publication of KR20160079948A publication Critical patent/KR20160079948A/en

Links

Images

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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • 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
    • F27B2009/382—Charging

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

In one embodiment of the present invention, there is provided a material loading guide device for a heating furnace in which friction is minimized and transferred to a material during a process of transferring the material to a heating furnace. The material loading guide device of the heating furnace according to one aspect of the present invention The apparatus comprising: a charging table provided on a charging roller line arranged orthogonally to the heating furnace and supplied with a material, for supporting a plurality of charging rollers at a position corresponding to the inlet of the heating furnace; A lift portion provided to be raised and lowered between the charging roller at a lower portion of the charging table; And a guide unit provided on the upper portion of the lift unit to guide movement of the work in the direction of the inlet of the heating furnace.

Figure P1020140190238

Description

{MATERIALS CHARGING GUIDE APPARATUS OF REHEATING FURNACE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material loading guide device for a heating furnace, and more particularly, to a material loading guide device for a heating furnace which prevents damages such as scratches from occurring in the process of pushing a material into a heating furnace.

Generally, in a hot rolling process, a thick rolling process, and a rolling process of a steelworks, there is provided a heating furnace 1 for heating a slab S, for example, a slab produced through a performance process. The heating furnace 1 is a device for heating the slab to a constant rolling temperature while moving the slab.

This heating furnace 1 is supplied with a material S such as a slab through a charging roller 22 provided in a charging roller line 20 and is supplied to a charging table 24 constituting a part of the charging roller 22 After the material S is placed on the heating furnace 1, the material S is positioned so as to face the center of the inlet of the heating furnace 1 and then pushed by the pusher 50 to be charged into the heating furnace 1.

At this time, a rail beam 40 for guiding the charging of the work S is provided on the entrance side of the heating furnace 1, and the pusher 50 is pushed to guide the work S to the rail beam 40, (1).

The pusher 50 pushes the material S supplied to the charging roller 22 forcibly in a high-speed state (maximum 30 tons) and pushes the long slab (full-length maximum 10 m) onto the rail beam 40, (S) can be positioned while being pushed up to the charging section of the heating furnace 1.

The material S is pushed up to the charging zone of the heating furnace 1 and then enters the heating furnace 1 where the door 2 is opened.

The lower surface of the material S during transport, for example, a soft slab (STS 300 series, 400 series, ultra low EG material, etc.) is pushed by the loading roller 22, the rail beam 40, So that the defective quality of the defect of the foreign matter is continuously generated in the finished product which has completed the rolling work.

In the conventional material feeding guide apparatus 10 of the heating furnace 1, irregular rolls are frequently replaced due to abnormal wear caused in the rolling mill work rolls in order to minimize such quality defects. A charging roller 22 which is a conveying device for conveying the material to the heating furnace 1 by hand and a charging table 24 constituting the charging roller 22 and a charging device 23 for removing the scratch and fused foreign substances generated in the rail beam 40, .

As described above, in the related art, a large number of laborers are required for maintenance of the work loading guide device 10 of the heating furnace 1, and a reduction in productivity due to work delays and production interruptions and a factor And customer complaints have arisen due to delays in delivery.

An object of the present invention is to provide a material loading guide device for a heating furnace in which friction is minimized and moved in a process of transferring a material to a heating furnace.

A material charging guide device of a heating furnace according to an aspect of the present invention is provided in a charging roller line arranged orthogonally to a heating furnace and supplied with a material and supports a plurality of charging rollers at a position corresponding to the inlet of the heating furnace Charging table; A lift portion provided to be raised and lowered between the charging roller at a lower portion of the charging table; And a guide unit provided on the upper portion of the lift unit to guide movement of the work in the direction of the inlet of the heating furnace.

Here, the guide unit includes a plurality of feed rollers provided on the upper portion of the lift unit so as to be rotated in the direction of the inlet of the heating furnace and supporting the material, and a housing in which the feed rollers are supported via respective friction reducing members can do.

The lift unit may include a frame provided at a lower portion of the guide unit, and at least one hydraulic elevator provided at a lower portion of the frame and moving up and down the frame.

And a liner member disposed on a side surface of the work groove and contacting the upper surface of the frame when the frame is moved, the liner member being provided on the side surface of the work groove, .

And a plurality of elevation guide rollers provided on one side of the frame and in contact with the liner member.

The heat sink may further include a heat sink provided at a lower portion of the frame, the heat sink being provided to prevent a drop of foreign matter and transmission of heat.

A rail beam provided between the heating furnace and the charging table for guiding movement of the workpiece; and a plurality of supports provided rotatably in an inlet direction of the heating furnace and supporting the workpiece, And may further include a conveying roller.

According to an embodiment of the present invention, it is possible to minimize the friction when moving the material, thereby preventing occurrence of defects such as scratches or fusing of foreign materials on the material during the moving process, thereby improving the quality of the material . According to the present embodiment, it is possible to prevent foreign substances generated by friction or the like when the work is moved from being welded to the work roll or the rail beam, thereby reducing the number of steps for removing fused foreign substances, It is possible to reduce the period of production stoppage and to reduce the maintenance cost and improve the productivity.

1 is a side view showing a material charging guide device of a heating furnace according to the prior art.
2 is a side view showing a material charging guide device of a heating furnace according to an embodiment of the present invention;
3 is a plan view showing a material loading guide device of a heating furnace according to an embodiment of the present invention;
FIG. 4 is a side view showing a state where a lift of a material loading guide device of a heating furnace is lowered according to an embodiment of the present invention; FIG.
5 is a perspective view showing a part of a material charging guide device of a heating furnace according to an embodiment of the present invention;
FIG. 6 is a perspective view illustrating a lift of a material loading guide device of a heating furnace according to an embodiment of the present invention. FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

FIG. 2 is a side view showing a material charging guide device of a heating furnace according to an embodiment of the present invention, FIG. 3 is a plan view showing a material charging guide device of a heating furnace according to an embodiment of the present invention, Is a side view showing a state in which a lift of a material loading guide device of a heating furnace is lowered according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a part of a material charging guide device of a heating furnace according to an embodiment of the present invention. FIG. 6 is a perspective view illustrating a part of the heating device in the heating furnace according to an embodiment of the present invention. FIG.

2 to 6, in this embodiment, the work charging guide device 110 of the heating furnace may include a charging table 124, a lift portion 130, and a guide unit 135.

In the present embodiment, the material charging guide device 110 of the heating furnace is a device used to supply the material S, for example, a slab or the like to the heating furnace 100.

The material S is supplied by the charging roller line 120. The charging roller line 120 may be arranged such that a plurality of charging rollers 122 are arranged orthogonal to the inlet position of the heating furnace 100, The materials S produced from the shearing process can be transferred to the inlet position of the heating furnace 100 while being supported by the charging roller 122 of the charging roller line 120.

The heating furnace 100 is also provided with a fixed work beam 105 and a moving work beam 106 to move the work S fed to the heating furnace 100. Further, a door 102 may be provided at the entrance of the heating furnace 100.

In this embodiment, the charging table 124 may be provided to support a plurality of charging rollers 122 at positions corresponding to the entrance of the heating furnace 100 in the charging roller line 120. The plurality of loading rollers 122 provided in the loading table 124 can be arranged in the same manner as the loading rollers 122 of the loading roller line 120 for supplying the material S from the front end process, The material S supplied from the line 120 can be seated on the loading roller 122 of the loading table 124. [

On the other hand, the pusher 150 may be provided at one side of the charging table 124 as a means for supplying the work S to the heating furnace 100. The pusher 150 can push the work S and feed it to the heating furnace 100. [

At this time, in the process of pushing the material S by the pusher 150, the bottom surface of the material S may be rubbed against the charging roller 122 and the rail beam 140 provided on the inlet side of the heating furnace 100.

Meanwhile, in this embodiment, a lift part 130 can be provided at the lower part of the loading table 124 to be lifted and lowered between the charging rollers 122. A guide unit 135 may be provided on the upper portion of the lift unit 130 to guide movement of the work S in the direction of the inlet of the heating furnace 100.

The material S placed in the loading table 124 is moved in the state in which the workpiece S supported by the guide unit 135 is lifted from the loading roller 122 by the lifting and lowering of the lift part 130, 150 so that the friction of the workpiece S is minimized and can be supplied to the heating furnace 100.

In this embodiment, the guide unit 135 may include a plurality of conveying rollers 136 provided on the upper portion of the lift portion 130. The conveying roller 136 may be provided so as to rotate in the direction of the inlet of the heating furnace 100 at an upper portion of the lift portion 130. The conveying rollers 136 can be provided in a plurality of at regular intervals, and the lower portion of the material S can be stably contacted to distribute the transferred load.

Further, the guide unit 135 may include a housing 137 in which a plurality of conveying rollers 136 are supported via respective friction reducing members.

The housing 137 is provided in a box-like structure, is rigidly made of a steel sheet steel plate for thermal deformation, and a friction reducing member can be fixedly installed.

Here, the conveying roller 136 is made of a material capable of sufficiently maintaining thermal deformation and rigidity even when a material S having a high temperature and a high weight, for example, HCR (Hot Charged Rolling) slabs of up to about 900 ° C., As shown in Fig. In one example, such a conveying roller 136 can be manufactured by heat treating S45C steel.

Further, the friction reducing member may be a bearing or a bush which is a sliding bearing. The friction reducing member may be a material which does not require a smooth driving and a paper feeding when receiving a heat and an external force, for example, an oil-less material.

In this embodiment, the lift unit 130 may include a frame 132 installed to support the lower portion of the guide unit 135. At least a part of the frame 132 One hydraulic lift 134 may be provided.

The frame 132 may be made of a warp steel plate and provided with a structure free from thermal deformation even when the material S having a high weight and a high temperature is raised. For example, the frame 132 can be provided with a structure capable of stably supporting even when the load of the material S is maximum 36 tons.

Preferably, the frame 132 may be provided so as to move vertically smoothly and stably without shaking at the time of ascending and descending.

To this end, a work space 126 in which a lower portion of the frame 132 is accommodated may be formed in a work space where a lift portion 130 is provided at a lower portion of the charging table 124. The working groove 126 may be provided as a space having vertical sides.

A liner member 128 may be provided on the side surface of the work groove 126 to contact the frame 132 when the frame 132 is moved and to guide the frame 132 to move up and down. The liner member 128 is provided in a material that can be replaced when worn, and can be provided in a structure that can be easily replaced.

A plurality of elevation guide rollers 133 may be provided at one side of the frame 132 to contact the liner member 128 so as to smooth the elevation while preventing the shaking at the time of elevating and lowering.

The lifting guide roller 133 is brought into close contact with the liner member 128 provided on the inner surface of the work groove 126 and can guide the lifting movement.

The lift unit 130 may be provided with a position sensor (not shown) for detecting the loading of the work S, and the signal sensed by the position sensor may be transmitted to the lift unit 130 and the heating furnace 100, To the HMI, which controls the overall operation of the lift section 130, and can control the rise and fall of the lift section 130 using this signal in the HMI.

That is, when the position sensor senses that the material S, for example, the slab, is properly positioned on the loading roller 122 of the loading table 124, the position sensor transmits the material S to the HMI, And controls the operation of the elevator 134 to raise the frame 132. When the frame 132 is lifted, the conveying roller 136 of the guide unit 135 holds and raises the bottom surface of the workpiece S, that is, the slab so that the slab and the loading roller 122 are spaced from each other. Next, the HMI pushes the workpiece S by operating the pusher 150, and the workpiece S can be moved without friction in a state of being seated on the conveying roller 136. [

On the other hand, when the material S is moved away from the charging table 124, the position sensor senses this and the frame 132 of the lift portion 130 is lowered by the operation of the hydraulic elevator 134.

The operation of the hydraulic lift 134 can be system controlled by the HMI using a hydraulic source supplied from the hydraulic system, and the hydraulic lift 134 can be operated at a constant speed It is preferable to construct the hydraulic device with one structure. In addition, the HMI is provided with an alarm when a problem such as malfunction of the lift unit 130 occurs, and thus an operator can confirm the abnormal operation state of the lift unit 130 through the HMI.

In addition, a heat radiating plate 131 may be provided under the frame 132 to block the drop of foreign matter and the transfer of heat transferred from the material S.

The heat sink 131 prevents the radiant heat generated in the high temperature material S from being transmitted to the hydraulic elevator 134 and prevents foreign matter such as an oxidation scale falling from the material S from falling below the charging table 124, (126) and the like.

In the present embodiment, the material S pushed by the pusher 150 in the charging table 124 can be moved to the rail beam 140 provided between the heating furnace 100 and the charging table 124 have.

Further, the upper portion of the rail beam 140 may be provided with a plurality of auxiliary conveying rollers 142 provided to be rotated in the direction of the entrance of the heating furnace 100. The plurality of auxiliary conveying rollers 142 may be provided in the same structure as the conveying rollers 136 provided in the guide unit 135. A plurality of auxiliary conveying rollers 142 may be spaced apart from each other by a predetermined distance, It is possible to stably disperse and support the load.

The auxiliary conveying roller 142 is made of a material capable of sufficiently maintaining thermal deformation and rigidity even when a material S having a high temperature and a high weight, for example, an HCR (Hot Charged Rolling) slab having a maximum of about 900 ° C, As shown in Fig. In one example, such an auxiliary transfer roller 142 can be manufactured by heat treating S45C steel.

In addition, the auxiliary feed roller 142 can be installed in the rail beam 140 via a bushing, which is a bearing or a sliding bearing.

The present embodiment is characterized in that the material S pushed and moved from the charging table 124 by the pusher cylinder 150 is rolled by the auxiliary feed roller 142 of the rail beam 140 and is fed to the inlet of the heating furnace 100 In this process, scratches of the lower surface of the material (S) and blasting of the foreign matter do not occur.

It will be understood by those skilled 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 and their equivalents. It will be clear to those who have knowledge.

100: Heating furnace 110: Material loading guide device
120: Loading roller line 122: Loading roller
124: charging table 126: work home
128: liner member 130: lift part
131: heat sink 132: frame
133: lift-up guide roller 134: hydraulic lift
135: Guide unit 136: Feed roller
137: housing 140: rail beam
142: auxiliary feed roller

Claims (8)

A charging table provided in a charging roller line arranged orthogonally to the heating furnace to supply a material and supporting a plurality of charging rollers at a position corresponding to an inlet of the heating furnace;
A lift portion provided to be raised and lowered between the charging roller at a lower portion of the charging table; And
A guide unit provided on the upper portion of the lift unit to guide movement of the work in the direction of the inlet of the heating furnace;
And a guide member for guiding the material into the heating furnace. [2] The apparatus according to claim 1,
A plurality of feed rollers provided on an upper portion of the lift portion so as to be rotated in an inlet direction of the heating furnace to support the material,
Wherein the feed roller includes a housing which is supported via respective friction reducing members. 3. The friction stir welding machine according to claim 2,
A material loading guide device for a furnace including a bearing or a bush. 4. The apparatus as claimed in any one of claims 1 to 3, wherein the lift
A frame provided under the guide unit,
And at least one hydraulic elevator provided at a lower portion of the frame to move up and down the frame. The method of claim 4,
Further comprising a working groove formed in the work space in which the lift portion is provided and receiving the lower portion of the frame,
And a liner member which is provided on a side surface of the work groove and is in contact with the frame when the frame is moved and guides the movement of the frame. The method of claim 5,
And a plurality of elevating guide rollers provided on one side of the frame and in contact with the liner member. The method of claim 4,
And a heat sink provided at a lower portion of the frame, the heat sink being provided to prevent the drop of foreign substances and the transmission of heat. The method according to any one of claims 1 to 3,
A rail beam provided between the heating furnace and the charging table for guiding movement of the workpiece,
Further comprising a plurality of auxiliary conveying rollers provided on an upper portion of the rail beam so as to be rotated in an inlet direction of the heating furnace to support the material.
KR1020140190238A 2014-12-26 2014-12-26 Materials charging guide apparatus of reheating furnace KR20160079948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140190238A KR20160079948A (en) 2014-12-26 2014-12-26 Materials charging guide apparatus of reheating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140190238A KR20160079948A (en) 2014-12-26 2014-12-26 Materials charging guide apparatus of reheating furnace

Publications (1)

Publication Number Publication Date
KR20160079948A true KR20160079948A (en) 2016-07-07

Family

ID=56499741

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140190238A KR20160079948A (en) 2014-12-26 2014-12-26 Materials charging guide apparatus of reheating furnace

Country Status (1)

Country Link
KR (1) KR20160079948A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102193715B1 (en) * 2019-07-19 2020-12-21 한국가스공사 Aboveground LNG Storage Tank Side Opening Material Transporting System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102193715B1 (en) * 2019-07-19 2020-12-21 한국가스공사 Aboveground LNG Storage Tank Side Opening Material Transporting System

Similar Documents

Publication Publication Date Title
KR20160079948A (en) Materials charging guide apparatus of reheating furnace
KR101746981B1 (en) Transfering apparatus and Rolling system having the same
KR100946103B1 (en) Slab turning apparatus and method for rolling slab using the same
CN111715703B (en) Strip steel warping and flattening device and method in rough rolling process
KR102042552B1 (en) Up looper system
JP4585465B2 (en) Steel rolling equipment
KR101417511B1 (en) Apparatus for correcting material's position
KR101205155B1 (en) Input guide apparatus for rolling mill
JPS5919017A (en) Billet transferring device
KR101435055B1 (en) Device and method for control upward movement of bar
JP4561614B2 (en) Rolled material holding device
KR101353832B1 (en) Apron apparatus
KR101220561B1 (en) Cutting and Lifting Device for Bar
KR101309981B1 (en) Slab Turning Apparatus
KR101382378B1 (en) Support apparatus, grinding machine having the same and the grinding method
KR100321037B1 (en) Apparatus and method for preventing temperature deviation of material to be rolled awaiting hot rolling
KR101228677B1 (en) Slab Turning Apparatus
KR20160121708A (en) Rolling apparatus for plate
KR101435068B1 (en) Transfer apparatus of material for furnace
KR101786259B1 (en) Assembling and disassembling apparatus for induction heating system
KR101656229B1 (en) Apparatus and method for adjusting swing roll in looper system
KR20100025903A (en) Side guide apparatus for rolling
KR101237066B1 (en) Carrier for heating furnace and control method thereof
JP2018178244A (en) Hearth roller apparatus for extracting steel material and heating furnace for steel material equipped with same
KR20090071174A (en) Slab turning apparatus and method for rolling slab using the same

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application