KR100812167B1 - Thickness measuring device of refractory - Google Patents

Thickness measuring device of refractory Download PDF

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Publication number
KR100812167B1
KR100812167B1 KR1020060132149A KR20060132149A KR100812167B1 KR 100812167 B1 KR100812167 B1 KR 100812167B1 KR 1020060132149 A KR1020060132149 A KR 1020060132149A KR 20060132149 A KR20060132149 A KR 20060132149A KR 100812167 B1 KR100812167 B1 KR 100812167B1
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South Korea
Prior art keywords
stave
thickness
base
measuring
guide rod
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KR1020060132149A
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Korean (ko)
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변동술
이민수
김현규
박용권
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주식회사 포스코
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

A device for measuring the thickness of a stave is provided to prevent an error by using a fixed reference point during measurement. A device for measuring the thickness of a stave includes a base(100). Rear and upper handles(110,111) are installed on the base. A guide rod(130) is installed on the base. A fixing member(160) is installed on an end of the guide rod and measures the thickness of the stave. A stopper(161) is formed on a front end of the fixing member. A moving member(120) is movably inserted in the guide rod. A moving bar(121) is installed on the moving member. A reference unit(123) is installed on the front end of the moving bar. A moving handle(122) is installed on the front part of the moving bar. A measurer(140) is installed on the lower part of the base by the medium of a fixing plate(141). A meter(150) is movably inserted in the measurer.

Description

스테이브 두께 측정장치{Thickness measuring device of refractory}Thickness measuring device of refractory

도 1은 일반적인 고로를 나타낸 개략도.1 is a schematic view showing a general blast furnace;

도 2는 종래의 방법으로 스테이브 두께를 측정하는 과정을 나타낸 개략도.Figure 2 is a schematic diagram showing a process of measuring the thickness of the stave by a conventional method.

도 3은 본 발명에 따른 스테이브 두께 측정장치를 나타낸 사시도.Figure 3 is a perspective view showing a stave thickness measuring apparatus according to the present invention.

도 4는 본 발명에 따른 스테이브 두께 측정장치의 사용상태를 나타낸 사시도.Figure 4 is a perspective view showing a state of use of the stave thickness measurement apparatus according to the present invention.

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

100 : 베이스 110 : 후방 손잡이100: base 110: rear handle

111 : 상부 손잡이 120 : 이동부재111: upper handle 120: moving member

121 : 이동바 122 : 이동 손잡이121: moving bar 122: moving handle

123 : 기준편 130 : 가이드봉123: Reference piece 130: Guide rod

140 : 측정자 150 : 계측기140: measurer 150: instrument

160 : 고정자 161 : 걸림돌기160: stator 161: jamming projection

본 발명은 스테이브 두께 측정장치에 관한 것으로서, 더욱 상세하게는 스테 이브 고로의 장기간 운전으로 인해 발생하는 스테이브의 연와 마모로 스테이브 전체의 열 부하가 상승 하는 것을 방지하고 스테이브를 보호하기위해 내화물 시공 작업의 판단 기준이 되는 잔존 스테이브를 측정할 때 측정값에 오차로 인한 오판단을 방지할 수 있는 스테이브 두께 측정장치에 관한 것이다.The present invention relates to a device for measuring the thickness of a stave, and more particularly, to protect the stave and to prevent the heat load of the whole stave from rising and wear of the stave caused by long-term operation of the stave blast furnace. The present invention relates to a stave thickness measuring device capable of preventing a misjudgment caused by an error in a measured value when measuring a remaining stave which is a criterion for refractory construction work.

일반적인 고로는 도 1에 나타낸 바와 같이 고로(1) 상부에서 장입물(2)(광석과 코크스를 번갈아 투입)을 투입하고 고로(1) 하부에서 고온의 열풍을 불어 넣어 연소시켜 주면 코크스의 연소에 의하여 고온의 일산화 가스가 광석사이로 올라가면서 광석과 환원 반응으로 용강을 생산하는 것이다.As shown in FIG. 1, when the charged material 2 (alternatively ore and coke is charged) is injected from the upper part of the blast furnace 1 and the high temperature hot air is blown and burned from the lower part of the blast furnace 1 to burn the coke. As a result, the hot monoxide gas rises between the ores to produce molten steel by the reduction reaction with the ores.

상기한 과정은 연속적인 작업에 의해 일어나고 고로(1) 상부에서 계속적으로 번갈아 투입 된 광석과 코크스는 풍구 상부 일정부에서 환원과 용융에 의해 광석과 코크스는 계속적으로 스테이브(3)의 연와를 마찰하면서 내려오게 된다. The above process takes place by continuous operation, and the ore and coke continuously introduced alternately in the upper part of the blast furnace (1) are reduced and melted in the upper part of the tuyere by the reduction and melting of the ore and coke continuously rubbing the edge of the stave (3). It comes down.

상기의 작업이 반복적으로 이루지면서 스테이브 연와를 손상 시킨다. 즉, 스테이브 두께가 얇아져 고로 수명단축에 원인되고 있으며, 이를 주기적으로 특정하여 잔존(스테이브 연와 손상을 나타내는 정도) 파악 및 잔존 측정값에 따라 보수 작업을 행하고 있다.The above operation is repeated to damage the stave tines. In other words, the thickness of the stave becomes thinner, which causes the blast furnace to shorten its lifespan, and is periodically identified to perform maintenance work according to the remaining (degrees of stave lead and damage) and the remaining measured values.

노내, 그리고 광석, 코크스에 포함된 미분과 환원반응 때 발생되는 반응물등에 의해 압력 공이 막힘이 발생하며, 이를 압력공 관통기(미도시)를 이용하여 압력공(6)을 관통을 실시한다.The pressure ball is blocked by the fine powder contained in the furnace, ore, coke, and reactants generated during the reduction reaction, and the pressure ball is penetrated through the pressure hole 6 using a pressure hole penetrator (not shown).

상기 스테이브의 잔존을 측정하는 과정을 도시한 첨부도면 도 2를 참조하여 상세히 설명하면 다음과 같다.The accompanying drawings showing a process of measuring the remaining of the stave will be described in detail with reference to FIG.

여기에서 참조되는 바와 같이 잔존 검출 작업은 고로의 수리작업을 위해 휴풍(설비 수리를 위해 고로내에 바람을 넣지 않고 임시로 세우는 것 이하 "정기수리"이라 칭한다)을 실시하며, 작업자는 고로 철피(5)에 방향별로 설치되어 있는 복수개의 압력계 단관(8)의 상부에 위치한 압력 검출관(7)을 열어 압력공(6)내에 잔압을 제거하고 밀폐형 맹 플랜지(10)를 취외하고, 압력공 관통기를 이용해 압력공(6) 선단부위에 형성하고 있는 장입물(2)을 관통을 실시한다, As referred to herein, the residual detection work is carried out for the repair work of the blast furnace (hereinafter referred to as "periodical repair" after temporary construction without blowing air into the blast furnace for repairing the facility), and the worker has to blast the blast furnace (5 Open the pressure detection tube (7) located above the plurality of pressure gauge end pipes (8) provided for each direction to remove residual pressure in the pressure hole (6), remove the sealed blind flange (10), and Through the charge (2) formed in the tip of the pressure hole (6),

압력공(6)이 관통되면, 선단부위가 "ㄴ"자 형상을 하고 있는 압력공 보다 내경이 작은 측정자 산소 파이프(13)를 삽입 후 장입물(2)과 스테이브(3) 사이에 측정자 산소 파이프(13) 선단부위를 끼워 넣고 나면, 맹 플랜지(10)와 수직으로 일치하는 측정자 산소 파이프(13) 부위를 작업자의 손(측정 기준 손(14)으로 활용)으로 잡은 상태에서 측정자 산소 파이프(13)의 선단부를 분리한다.When the pressure hole 6 penetrates, after inserting the measuring oxygen pipe 13 whose inner diameter is smaller than the pressure hole having the "b" shape, the measuring oxygen is inserted between the charge 2 and the stave 3. After the tip of the pipe 13 is inserted, the operator oxygen pipe (13), which is vertically aligned with the blind flange 10, is held by the operator's hand (used as the reference reference hand 14). Remove the tip of 13).

이러한 상태에서 측정용 줄자(15)를 이용하여 스테이브(3) 두께를 측정한다.In this state, the thickness of the stave 3 is measured using the measuring tape 15.

상기와 같이 스테이브(3)의 두께 측정이 완료되면 맹 플랜지(10)를 조립하고 압력 검출관(7)을 닫고 정상 조업시 고로 내부의 압력을 측정 하는 것이다.When the thickness measurement of the stave 3 is completed as described above, the blind flange 10 is assembled, the pressure detection tube 7 is closed, and the pressure inside the blast furnace is measured during normal operation.

그러나 이러한 종래의 방법은 다음과 같은 문제점이 있다.However, this conventional method has the following problems.

첫째 스테이브 잔존 두께의 기준점을 작업자 손을 이용하여 기준하기 때문에 정확한 두께를 측정하는데 어려움이 있다.First, since the reference point of the remaining thickness of the stave is referenced by the operator's hand, it is difficult to measure the exact thickness.

둘째 줄자를 이용하여 길이를 측정한 후 측정한 값을 이용해 각 부위별 스테이브 길이를 재 가공해야만 하기 때문에 실시간 스테이브 잔존 두께를 확인이 어렵다.After measuring the length with the second tape measure, it is difficult to check the remaining thickness of the real-time stave because the length of the stave for each part must be reprocessed using the measured value.

세째 철피에서 맹 플랜지까지 측정거리 차이가 발생하여 잔존 측정과 동시에 스테이브 두께 확인이 어렵다.Third, there is a difference in measuring distance from the bark to the blind flange, making it difficult to check the thickness of the stave at the same time as the remaining measurements.

본 발명은 상기한 문제점을 해결하기 위하여 발명한 것으로서, 그 목적은 고로의 장기간 운전으로 인해 발생하는 스테이브의 마모량을 신속하고 간편하게 측정할 수 있는 스테이브 두께 측정장치를 제공함에 있다.The present invention has been made to solve the above problems, the object of the present invention is to provide a stave thickness measurement device that can quickly and simply measure the amount of wear of the stave caused by the long-term operation of the blast furnace.

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 발명의 스테이브 두께 측정장치는 후방 손잡이과 상부 손잡이이 설치된 베이스와, 상기 베이스에 설치된 가이드봉과, 상기 가이드봉의 단부에 설치되고 선단부에는 걸림돌기가 형성된 고정자와, 상기 가이드봉에 이동 가능하게 끼워진 이동부재와, 상기 이동부재에 설치되고 선단부에는 기준편이 설치된 이동바와, 상기 베이스의 전면 하부에 설치된 측정자와, 상기 측정자에 이동 가능하게 끼워진 계측기를 포함하여서 된 것이다.The stave thickness measuring apparatus of the present invention includes a base having a rear handle and an upper handle, a guide rod installed on the base, a stator provided at an end of the guide rod and having a locking protrusion at a distal end thereof, and a movable member movable to the guide rod. The front end portion includes a moving bar provided with a reference piece, a measuring instrument installed at the lower portion of the front of the base, and a measuring instrument fitted to the measuring member to be movable.

이하 본 발명을 나타낸 첨부도면을 참조하여 상세히 설명하면 다음과 같다. Hereinafter, described in detail with reference to the accompanying drawings showing the present invention.

도 3은 본 발명에 따른 스테이브 두께 측정장치를 나타낸 사시도이고, 도 4는 본 발명에 따른 스테이브 두께 측정장치의 사용상태를 나타낸 사시도이다.3 is a perspective view showing a stave thickness measuring apparatus according to the present invention, Figure 4 is a perspective view showing a state of use of the stave thickness measuring apparatus according to the present invention.

여기에서 참조되는 바와 같이 본 발명은 베이스(100)가 마련되어 있되, 그 베이스(100)의 후방에는 후방 손잡이(110)가 설치되어 있고, 전방 상면에는 상부 손잡이(111)가 설치되어 있다.As referred to herein, the base 100 is provided, but the rear handle 110 is provided at the rear of the base 100, and the upper handle 111 is provided at the front upper surface.

한편, 상기 베이스(100)에는 가이드봉(130)이 설치되어 있고, 상기 가이드봉(130)의 단부에는 스테이브(3)의 두께를 측정하는 고정자(160)가 설치되어 있으며, 상기 고정자(160)의 선단부에는 걸림돌기(161)가 형성되어 있다.On the other hand, the base 100 is provided with a guide rod 130, the end of the guide rod 130 is provided with a stator 160 for measuring the thickness of the stave 3, the stator 160 At the distal end portion thereof, a locking projection 161 is formed.

그리고, 상기 가이드봉(130)에는 이동부재(120)가 이동 가능하게 끼워져 있고, 상기 이동부재(120)에는 이동바(121)가 설치되어 있되, 그 이동바(121)의 선단부에는 기준편(123)이 설치되어 있으며, 상기 이동바(121)의 전면 일측에는 이동 손잡이(122)가 설치되어 있다.In addition, the movable member 120 is inserted into the guide rod 130 so as to be movable, and the movable member 120 is provided with a movable bar 121, and a reference piece () is provided at the tip of the movable bar 121. 123 is installed, the moving handle 122 is installed on one side of the front of the moving bar 121.

또한, 상기 베이스(100)의 전면 하부에는 측정자(140)가 설치되어 있되, 그 측정자(140)는 고정플레이트(141)를 매개로 설치되어 있다.In addition, the lower side of the front of the base 100, the meter 140 is installed, the meter 140 is installed via the fixing plate 141.

한편, 상기 측정자(140)에는 계측기(150)가 이동 가능하게 끼워져 있다.On the other hand, the measuring instrument (140) is fitted to be movable.

이와 같이 구성된 본 발명을 상세히 설명하면 다음과 같다.Referring to the present invention configured as described in detail as follows.

먼저, 잔존 검출 작업은 고로의 수리작업을 위해 정기수리시 실시하며, 작업자는 고로 철피(5)에 방향별로 설치되어 있는 복수개의 압력공(6) 상부에 위치한 압력 검출관(7)을 열어 압력공(6)내에 잔압을 제거하고 밀폐형 맹 플랜지(10)를 취외하고, 압력공 관통기를 이용해 압력공(6) 선단부위에 형성하고 있는 장입물(2)을 관통을 실시한다, First, the residual detection work is carried out at regular repairs for the repair work of the blast furnace, the operator opens the pressure detection tube (7) located above the plurality of pressure holes (6) installed in each direction in the blast furnace shell (5) The residual pressure is removed in the hole 6, the sealed blind flange 10 is removed, and the charge 2 is formed through the charge 2 formed at the tip of the pressure hole 6 using a pressure hole penetrator.

압력공(6)이 관통되면, 상부 손잡이(111)와 후방 손잡이(110)를 잡은 상태에서 상기 압력공(6)의 내부로 고정자(160)를 삽입하고, 상기 고정자(160)의 선단부에 형성된 걸림돌기(161)를 장입물(2)과 스테이브(3) 사이에 끼워 넣는다.When the pressure hole 6 penetrates, the stator 160 is inserted into the pressure hole 6 while holding the upper handle 111 and the rear handle 110, and the tip hole of the stator 160 is formed. The locking projections 161 are inserted between the charges 2 and the stave 3.

이러한 상태에서 이동바(121)의 선단부에 설치된 기준편(123)이 압력계 단관(8)의 기준점(170)에 위치되게 이동시키는 것이며, 이때에는 이동 손잡이(122)를 이용하는 것이다.In this state, the reference piece 123 installed at the distal end of the moving bar 121 is moved to be positioned at the reference point 170 of the pressure gauge end pipe 8, and in this case, the moving handle 122 is used.

상기 이동바(121)가 이동되면, 그 이동바(121)에 설치된 이동부재(120)는 가이드봉(130)에 안내되면서 이동하는 것이고, 이때 계측기(150)가 함께 이동하는 것이다.When the moving bar 121 is moved, the moving member 120 installed on the moving bar 121 is moved while being guided to the guide rod 130, and the measuring instrument 150 moves together.

따라서, 상기 기준편(123)이 기준점(170)에 일치할 때 계측기(150)에 표시되는 측정값을 측정한 후 압력공(6)의 내부에서 고정자(160)를 인출하고, 볼 밸브(9)를 닫고, 밀폐형 맹 플랜지(10)을 끼운다.Therefore, when the reference piece 123 coincides with the reference point 170, the measured value displayed on the measuring instrument 150 is measured, and then the stator 160 is drawn out of the pressure hole 6, and the ball valve 9 ) And insert the sealed blind flange (10).

상술한 과정을 통하여 측정된 측정값은 스테이브(3)의 잔존 두께 및 철피(5)로부터 기준점(170) 까지의 거리가 포함된 값이므로 그 측정값에서 철피(5)로부터 기준점(170)까지의 거리를 빼면 스테이브(3)의 잔존 두께를 확인할 수 있는 것이다.Since the measured value measured through the above-described process includes the remaining thickness of the stave 3 and the distance from the bark 5 to the reference point 170, the measured value from the bark 5 to the reference point 170. By subtracting the distance of the remaining thickness of the stave (3) can be confirmed.

한편, 상기 철피(5)로부터 기준점(170)까지의 거리는 일정한 값으로 유지되는 것이며, 더욱 정밀한 측정값을 요구할 경우에는 철피(5)로부터 기준점(170) 까지의 거리를 측정하는 것도 가능하다.On the other hand, the distance from the bark 5 to the reference point 170 is maintained at a constant value, it is also possible to measure the distance from the bark 5 to the reference point 170 when a more precise measurement value is required.

이와 같이 본 발명은 스테이브 잔존 두께를 측정할 때 일정한 위치의 기준점을 이용하므로 기준점 변동으로 인한 오차를 방지할 수 있는 특유의 효과가 있다.As described above, since the present invention uses a reference point at a predetermined position when measuring the remaining thickness of the stave, there is a unique effect of preventing an error due to the change of the reference point.

또한, 철피에서 기준점 까지를 측정하면 스테이브의 잔존 두께를 정확하게 측정할 수 있는 특유의 효과가 있다.In addition, measuring from the bark to the reference point has a unique effect that can accurately measure the remaining thickness of the stave.

Claims (2)

후방 손잡이(110)와 상부 손잡이(111)가 설치된 베이스(100)와, 상기 베이스(100)에 설치된 가이드봉(130)과, 상기 가이드봉(130)의 단부에 설치되고 선단부에는 걸림돌기(161)가 형성된 고정자(160)와, 상기 가이드봉(130)에 이동 가능하게 끼워진 이동부재(120)와, 상기 이동부재(120)에 설치되고 선단부에는 기준편(123)이 설치된 이동바(121)와, 상기 베이스(100)의 전면 하부에 설치된 측정자(140)와, 상기 측정자(140)에 이동 가능하게 끼워진 계측기(150)를 포함함을 특징으로 하는 스테이브 두께 측정장치.A base 100 provided with a rear handle 110 and an upper handle 111, a guide rod 130 installed on the base 100, and an end portion of the guide rod 130, and a locking protrusion 161 at a distal end thereof. ) Is formed stator 160, the movable member 120 is inserted into the guide rod 130 so as to be movable, and the movable bar 121 is installed on the movable member 120 and the reference piece 123 is installed at the tip portion thereof. And, Stave thickness measuring device, characterized in that it comprises a measuring device (140) installed on the front lower portion of the base (100), the measuring instrument (150) fitted to be movable to the measuring device (140). 제 1 항에 있어서, 상기 이동바(121)에는 이동 손잡이(122)가 더 설치됨을 특징으로 하는 스테이브 두께 측정장치.The stave thickness measurement apparatus according to claim 1, wherein the moving bar (122) is further provided with a moving handle (122).
KR1020060132149A 2006-12-21 2006-12-21 Thickness measuring device of refractory KR100812167B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038333B1 (en) 2009-11-09 2011-05-31 포항공과대학교 산학협력단 Stave of furnace thickness measuring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0625726A (en) * 1992-07-08 1994-02-01 Nippon Steel Corp Method for measuring remaining thickness of furnace wall brick in blast furnace
JPH07126722A (en) * 1993-10-28 1995-05-16 Kawasaki Steel Corp Method for measuring depth of iron tapping hole of blast furnace
JP2002038210A (en) 2000-07-27 2002-02-06 Nippon Steel Corp Thickness measuring device for deposit on inner wall of blast furnace and operation method for the furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0625726A (en) * 1992-07-08 1994-02-01 Nippon Steel Corp Method for measuring remaining thickness of furnace wall brick in blast furnace
JPH07126722A (en) * 1993-10-28 1995-05-16 Kawasaki Steel Corp Method for measuring depth of iron tapping hole of blast furnace
JP2002038210A (en) 2000-07-27 2002-02-06 Nippon Steel Corp Thickness measuring device for deposit on inner wall of blast furnace and operation method for the furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038333B1 (en) 2009-11-09 2011-05-31 포항공과대학교 산학협력단 Stave of furnace thickness measuring device

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