KR20040087137A - Extract slab fall prevention apparatus of heating furnace - Google Patents

Extract slab fall prevention apparatus of heating furnace Download PDF

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Publication number
KR20040087137A
KR20040087137A KR1020030021401A KR20030021401A KR20040087137A KR 20040087137 A KR20040087137 A KR 20040087137A KR 1020030021401 A KR1020030021401 A KR 1020030021401A KR 20030021401 A KR20030021401 A KR 20030021401A KR 20040087137 A KR20040087137 A KR 20040087137A
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KR
South Korea
Prior art keywords
slab
heating furnace
extracted
fall prevention
scale
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KR1020030021401A
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Korean (ko)
Inventor
김영복
정준영
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주식회사 포스코
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Priority to KR1020030021401A priority Critical patent/KR20040087137A/en
Publication of KR20040087137A publication Critical patent/KR20040087137A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/04—Lifting or lowering work for conveying purposes, e.g. tilting tables arranged immediately in front of or behind the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/12—Covers or shieldings

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

Abstract

PURPOSE: An apparatus for preventing fall of slab extracted from reheating furnace is provided to transfer slab to its destination promptly and safely by installing the apparatus between the reheating furnace and roller table so that the slab is not dropped when slab extracted from the reheating furnace is extracted in the fused state. CONSTITUTION: The apparatus comprises bases(10) installed at a lower part of the output side of reheating furnace(1) for heating slab (S); cylinders(11) installed on the upper surface of the bases so that the cylinders are operated when the slab is dropped; liftable and lowerable blocks(12) installed on rod of the cylinders to transfer the slab dropped to the upper side; and upper covers(13) rested on the upper surface of the liftable and lowerable blocks and lifted and lowered in the state that the upper covers are contacted with the bottom of the slab, wherein the apparatus further comprises scale guiding members(14) installed at a lower part of the bases so that the scale guiding members form a certain inclination angle, and a scale pan(15) installed at a lower part of the scale guiding members.

Description

가열로의 추출 슬라브 추락 방지장치{Extract slab fall prevention apparatus of heating furnace}Extractive slab fall prevention apparatus of heating furnace

본 발명은 가열로의 추출 슬라브 추락 방지장치에 관한 것으로서, 더욱 상세하게는 압연소재인 슬라브를 압연적정 온도로 가열하는 가열로에서 추출할 때 상기 가열로의 내부에서 융착된 슬라브가 추출되어 하부로 추락하는 것을 방지할 수 있는 가열로의 추출 슬라브 추락 방지장치에 관한 것이다.The present invention relates to an apparatus for preventing the fall of an extraction slab in a heating furnace, and more particularly, when the slab, which is a rolled material, is extracted in a heating furnace that is heated to a suitable rolling temperature, the slab fused in the interior of the heating furnace is extracted and moved downward. The present invention relates to an extraction slab fall prevention apparatus of a heating furnace capable of preventing a fall.

일반적으로 열간압연공정은 슬라브의 가열→조압연→사상압연→냉각→권취 등의 순서로 진행되어 열간 압연강판을 생산한다. 열간 압연에서 사용되는 소재인 슬라브는 통상 두께가 200-250mm, 폭이 900-1800mm, 길이가 6000-10000mm정도의 비교적 고중량물에 속하며, 압연전에 가열로내에서 압연에 필요한 고온으로 가열되어진다. 슬라브의 가열온도는 압연에서의 부하경감은 물론 냉각과정에서 필요로 하는 기계적 성질을 얻기 위해 적절히 정해지게 되지만, 통상의 가열온도는 1200-1300℃ 정도이다.In general, the hot rolling process proceeds in the order of slab heating → rough rolling → sand rolling → cooling → winding to produce hot rolled steel sheet. Slab, which is a material used in hot rolling, belongs to a relatively heavy material having a thickness of 200-250mm, a width of 900-1800mm, and a length of 6000-10000mm, and is heated to a high temperature necessary for rolling in a heating furnace before rolling. The heating temperature of the slab is appropriately determined in order to obtain the mechanical properties required for cooling as well as the load reduction in rolling, but the normal heating temperature is about 1200-1300 ° C.

슬라브의 가열에 사용되는 가열로는 예열대, 가열대, 균열대의 3단계로 나뉘어져 있으며, 각각의 구역에서는 일정량의 연료를 지속적으로 공급하여 필요한 온도를 유지하게 된다.The furnace used to heat the slab is divided into three stages: preheating zone, heating zone, and cracking zone. Each zone continuously supplies a certain amount of fuel to maintain the required temperature.

한편, 슬라브는 상온상태로부터 압연순서에 따라 가열로에 차례로 장입하게 되며, 가열로내에서의 슬라브의 이송은 이동빔의 규칙적인 운동에 의해 자동적으로 추출지점까지 이동하게 된다.On the other hand, the slab is charged into the heating furnace in order from the normal temperature state in the rolling order, the slab transfer in the heating furnace is automatically moved to the extraction point by the regular movement of the moving beam.

이와 같이 슬라브는 장입측으로부터 추출측으로 옮겨져 가열을 완료하게 된다. 따라서, 하나의 슬라브가 전체 가열로를 통과하는 시간은 대략 3-4시간에 달하는 것이다.Thus, the slab is moved from the charging side to the extraction side to complete the heating. Thus, the time for one slab to pass through the entire furnace is approximately 3-4 hours.

도 1에 나타낸 바와 같이 가열로(1)의 출측에는 가열 완료된 슬라브(S)를 추출할 수 있는 추출기(3)가 마련되어 있고, 상기 가열로(1)의 출측에는 추출된 슬라브(S)를 목적지로 이송시키는 롤러 테이블(2)이 설치되어 있다.As shown in FIG. 1, an extractor 3 capable of extracting the heated slab S is provided on the exit side of the heating furnace 1, and the extracted slab S is the destination on the exit side of the heating furnace 1. The roller table 2 which feeds into a furnace is provided.

따라서, 가열로(1)에서 압연에 정정한 온도로 가열된 슬라브(S)는 가열로(1)의 출측에 설치된 추출기(3)에 의해서 1회에 1매씩 추출되는 것이며, 이와 같이 추출된 슬라브(S)는 추출기(3)에 의해서 롤러 테이블(2)에 안착된 후 목적지로 이송되는 것이다.Therefore, the slabs S heated at the temperature corrected for rolling in the heating furnace 1 are extracted one at a time by the extractor 3 provided at the exit side of the heating furnace 1, and the slabs extracted in this way. S is settled on the roller table 2 by the extractor 3, and is conveyed to the destination.

상기 가열로(1) 내부의 온도는 고온으로서, 연속적으로 장입되는 슬라브(S)가 고온으로 인하여 융착될 경우에는 추출기(3)에 의해서 추출되는 슬라브(S)와 그 후단에 위치된 슬라브(S)가 함께 추출되었으며, 이때 추출기(3)에 의해서 추출되는 슬라브(S)는 롤러 테이블(2)에 안전하게 안착되어 목적지로 이송되지만, 융착으로 인하여 추출된 슬라브(S)는 도 1에 나타낸 바와 같이 가열로(1)와 롤러 테이블(2) 사이로 추락하게 되어 주변 설비를 파손시키게 되었다.The temperature inside the furnace 1 is a high temperature, when the slab (S) continuously charged is fused due to the high temperature, the slab (S) extracted by the extractor (3) and the slab (S) located at the rear end thereof. ) Are extracted together, and the slab S extracted by the extractor 3 is safely seated on the roller table 2 and transported to the destination, but the slab S extracted due to fusion is shown in FIG. 1. Falling between the furnace 1 and the roller table 2 caused damage to the surrounding equipment.

또한 상기 추락된 슬라브(S)를 처리하기 위해서는 공정을 정지시켜야 하므로 설비의 가동율을 저하시키게 되는 문제점이 있었다.In addition, in order to process the fallen slab (S) has to stop the process there was a problem that lowers the operation rate of the facility.

본 발명은 상기한 문제점 해결하기 위하여 발명한 것으로서, 그 목적은 가열로에서 추출되는 슬라브가 고온으로 인하여 융착된 상태로 추출될 때 상기 슬라브가 추락되지 않도록 가열로와 롤러 테이블의 사이에 추락 방지장치를 설치하여 슬라브를 신속하고 안전하게 목적지로 이송시킬 수 있는 가열로의 추출 슬라브 추락 방지장치를 제공함에 있다.The present invention has been invented to solve the above problems, the object of the fall fall prevention device between the furnace and the roller table so that the slab does not fall when the slab extracted from the furnace is extracted in a fused state due to the high temperature It is to provide an extraction slab fall prevention device of the heating furnace that can be installed to transfer the slab to the destination quickly and safely.

도 1은 일반적인 가열로에서 슬라브를 추출하는 상태를 나타낸 사시도.1 is a perspective view showing a state in which the slab is extracted in a general heating furnace.

도 2는 본 발명에 따른 슬라브 추락 방지장치의 설치상태를 나타낸 사시도.Figure 2 is a perspective view showing the installation state of the slab fall prevention apparatus according to the present invention.

도 3은 본 발명에 따른 슬라브 추락 방지장치를 나타낸 사시도.Figure 3 is a perspective view showing a slab fall prevention apparatus according to the present invention.

도 4는 본 발명에 따른 슬라브 추락 방지장치의 설치상태를 나타낸 측면도.Figure 4 is a side view showing the installation state of the slab fall prevention apparatus according to the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

S : 슬라브 1 : 가열로S: slab 1: heating furnace

10 : 베이스 11 : 실린더10: base 11: cylinder

12 : 승강블럭 13 : 상부커버12: lifting block 13: upper cover

14 : 스케일 유도부재 15 : 스케일 받이14: scale guide member 15: scale receiving

상기 목적을 달성하기 위한 본 발명의 특징적인 구성을 설명하면 다음과 같다.Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

본 발명 가열로의 추출 슬라브 추락 방지장치는 슬라브를 가열하는 가열로의 출측 하부에 설치된 베이스와, 상기 베이스의 상면에 설치되어 슬라브가 추락될 경우에 작동되는 실린더와, 상기 실린더의 로드에 설치되어 추락되는 슬라브를 상부로 이송시키는 승강블럭과, 상기 승강블럭의 상면에 안착되어 슬라브의 저면에 접촉된 상태로 상승되는 상부커버를 포함하여서 된 것이다.The extraction slab fall prevention device of the heating furnace of the present invention is a base installed in the lower side of the exit of the heating furnace for heating the slab, a cylinder installed on the upper surface of the base and operated when the slab falls, and is installed on the rod of the cylinder It includes a lifting block for transporting the slab to fall to the upper side, and the upper cover is seated on the upper surface of the lifting block in contact with the bottom surface of the slab.

이와 같은 특징을 갖는 본 발명을 상세하게 설명하면 다음과 같다.Referring to the present invention having such characteristics in detail as follows.

도 2는 본 발명에 따른 슬라브 추락 방지장치의 설치상태를 나타낸 사시도이고, 도 3은 본 발명에 따른 슬라브 추락 방지장치를 나타낸 사시도이며, 도 4는 본 발명에 따른 슬라브 추락 방지장치의 설치상태를 나타낸 측면도이다.Figure 2 is a perspective view showing the installation state of the slab fall prevention apparatus according to the present invention, Figure 3 is a perspective view showing the slab fall prevention apparatus according to the present invention, Figure 4 is an installation state of the slab fall prevention apparatus according to the present invention The side view shown.

여기에서 참조되는 바와 같이 본 발명은 슬라브(S)를 가열하는 가열로(1)의 출측과 가열 완료된 슬라브(S)를 목적지로 이송시키는 롤러 테이블(2)의 사이에 베이스(10)가 설치되어 있고, 그 베이스(10)의 상면에는 복수개의 실린더(11)가 설치되어 있으며, 상기 실린더(11)를 복수개 설치하는 이유는 고 중량의 슬라브(S)를 안전하게 상승시킬 수 있도록 하기 위함이다.As referred to herein, in the present invention, the base 10 is installed between the exit side of the heating furnace 1 for heating the slab S and the roller table 2 for transporting the heated slab S to the destination. In addition, a plurality of cylinders 11 are provided on the upper surface of the base 10, and the reason for installing the plurality of cylinders 11 is to allow the high-weight slab S to be safely raised.

상기 실린더(11)의 로드에는 추락되는 슬라브(S)를 지지하며 그 슬라브(S)를 상부로 이송시키기 위한 승강블럭(12)이 설치되어 있고, 상기 승강블럭(12)의 상면에는 슬라브(S)의 저면이 손상되지 않도록 보호 할 수 있도록 상기 슬라브(S)의 저면에 접촉되어 된 상태로 상승되는 상부커버(13)가 설치되어 있다.The rod of the cylinder 11 is provided with a lifting block 12 for supporting the slab (S) to fall down and to transfer the slab (S) to the upper side, the slab (S) on the upper surface of the lifting block 12 The top cover 13 is installed to be raised in contact with the bottom of the slab (S) so as to protect the bottom of the slab (S) from being damaged.

한편, 상기 베이스(10)의 하부에는 가열로(1)에서 추출되는 슬라브(S)의 표면에 발생된 스케일을 유도하기 위한 스케일 유도부재(14)가 설치되어 있고, 상기 스케일 유도부재(14)의 하단부에는 스케일을 모으기 위한 스케일 받이(15)가 설치되어 있다.On the other hand, the lower portion of the base 10 is provided with a scale guide member 14 for inducing the scale generated on the surface of the slab (S) extracted from the heating furnace 1, the scale guide member 14 The lower end of the scale receiving unit 15 for collecting the scale is provided.

이와 같이 구성된 본 발명의 작동상태를 상세히 설명하면 다음과 같다.Referring to the operating state of the present invention configured as described in detail as follows.

먼저, 가열로(1)에서 가열 완료된 슬라브(S)를 추출할 때에는 상기 가열로(1)의 출측으로 추출기(3)가 삽입되어 슬라브(S)를 추출하는 것으로서, 상기 추출기(3)에 의해서 추출되는 슬라브(S)가 가열로(1)의 내부에서 융착되지 않을 경우에는 추출기(3)에 의해서 안전하게 추출되어 롤러 테이블(2)의 상면에 안착된 후 목적지로 이동되는 것이다.First, when the heated slab S is extracted from the heating furnace 1, the extractor 3 is inserted into the exit side of the heating furnace 1 to extract the slabs S. If the extracted slab (S) is not fused in the interior of the furnace (1) is safely extracted by the extractor (3) is seated on the upper surface of the roller table (2) and then moved to the destination.

그리고, 상기 가열로(1)에서 추출되는 슬라브(S)에서 발생되어 하부로 낙하되는 스케일은 스케일 유도부재(14)의 경사면을 따라서 스케일 받이(15)로 모아지게 되는 것이다.In addition, the scale generated from the slab S extracted from the heating furnace 1 and falling downward is collected by the scale receiving unit 15 along the inclined surface of the scale guide member 14.

한편, 상기 가열로(1)의 내부에서 발생되는 고온에 의하여 슬라브(S)가 융착될 경우에는 추출기(3)로 슬라브(S)를 추출할 때 상기 추출기(3)에 의해서 추출되는 슬라브(S)의 후단에 위치한 슬라브(S)가 함께 추출되는 것이며, 이때에는 복수개의 실린더(11)가 동시에 작동되어 승강블럭(12)을 상승시키게 된다.On the other hand, when the slab (S) is fused by the high temperature generated in the heating furnace 1 when the slab (S) is extracted by the extractor 3, the slab (S) extracted by the extractor (3) The slab (S) located at the rear end of the) is extracted together, and at this time, the plurality of cylinders 11 are simultaneously operated to raise and lower the lifting block 12.

상기 승강블럭(12)이 상승됨에 따라서 그 상면에 설치된 상부커버(13)가 함께 상승되어 상기 상부커버(13)는 슬라브(S)의 저면에 긴밀히 접촉된 상태로 슬라브(S)를 상승시키게 되는 것이다.As the lifting block 12 is raised, the upper cover 13 installed on the upper surface thereof is raised together so that the upper cover 13 raises the slab S in intimate contact with the bottom surface of the slab S. will be.

따라서, 상기 슬라브(S)의 저면은 상부커버(13)에 의해서 손상이 방지되는한편, 가열로(1)와 롤러 테이블(2)의 사이로 추락하지 않게 되는 것이다.Accordingly, the bottom of the slab S is prevented from falling between the heating furnace 1 and the roller table 2 while damage is prevented by the upper cover 13.

이와 같은 본 발명의 중량물인 슬라브를 추출할 때 고온에 의하여 융착된 후단의 슬라브가 함께 추출되어도 가열로와 롤러 테이블의 사이로 추락하는 것을 미연에 방지하게 되므로 설비의 파손을 방지함은 물론, 설비를 연속적으로 가동하여 생산량을 증가시킬 수 있는 특유의 효과가 있다.When extracting the slab, which is a heavy product of the present invention, even if the slab of the rear end fused by high temperature is extracted together, the fall of the slab between the heating furnace and the roller table is prevented in advance, thereby preventing damage to the equipment and, of course, the equipment. There is a distinctive effect of increasing the output by operating continuously.

Claims (2)

슬라브(S)를 가열하는 가열로(1)의 출측 하부에 설치된 베이스(10)와, 상기 베이스(10)의 상면에 설치되어 슬라브(S)가 추락될 경우에 작동되는 실린더(11)와, 상기 실린더(11)의 로드에 설치되어 추락되는 슬라브(S)를 상부로 이송시키는 승강블럭(12)과, 상기 승강블럭(12)의 상면에 안착되어 슬라브(S)의 저면에 접촉된 상태로 상승되는 상부커버(13)를 포함함을 특징으로 하는 가열로의 추출 슬라브 추락 방지장치.A base 10 installed at the lower side of the exit side of the heating furnace 1 for heating the slab S, a cylinder 11 installed on the upper surface of the base 10 and operated when the slab S falls; An elevating block 12 which is installed on the rod of the cylinder 11 and transfers the slab S falling upward, and is mounted on the upper surface of the elevating block 12 to be in contact with the bottom surface of the slab S. Extraction slab fall prevention apparatus of the heating furnace, characterized in that it comprises a raised top cover (13). 제 1 항에 있어서, 상기 베이스(10)의 하부에 소정의 경사각을 이루도록 설치된 스케일 유도부재(14)와, 상기 스케일 유도부재(14)의 하단부에 설치된 스케일 받이(15)를 더 포함함을 특징으로 하는 가열로의 추출 슬라브 추락 방지장치.The method of claim 1, further comprising a scale guide member (14) provided at the lower portion of the base (10) to achieve a predetermined angle of inclination, and a scale receiving member (15) provided at the lower end of the scale guide member (14). Extraction slab fall prevention device of heating furnace.
KR1020030021401A 2003-04-04 2003-04-04 Extract slab fall prevention apparatus of heating furnace KR20040087137A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101435036B1 (en) * 2012-09-27 2014-08-27 현대제철 주식회사 Apparatus for transferring material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101435036B1 (en) * 2012-09-27 2014-08-27 현대제철 주식회사 Apparatus for transferring material

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