KR100433343B1 - pressure detector brick and detection apparator utilize this in Blast Furnace true form - Google Patents
pressure detector brick and detection apparator utilize this in Blast Furnace true form Download PDFInfo
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- KR100433343B1 KR100433343B1 KR10-2000-0066660A KR20000066660A KR100433343B1 KR 100433343 B1 KR100433343 B1 KR 100433343B1 KR 20000066660 A KR20000066660 A KR 20000066660A KR 100433343 B1 KR100433343 B1 KR 100433343B1
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- 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
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- 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
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/28—Arrangements of monitoring devices, of indicators, of alarm devices
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- 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
- F27D2021/0007—Monitoring the pressure
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
본 발명은 노내압력 검출공을 노내로 삽입할 필요없이 고로본체의 연와기능과 고로내부의 압력을 검출하도록 한 압력검출공 기능을 가진 다공식연와에 관한 것으로, 압력검출용 연와의 실시예는, 노내 압력을 검출하기 위한 통로가 형성된 압력검출공(23)와, 좌측연와와 우측연와 사이에 축조한 압력검출공연와(24)와, 고로철피부를 관통하여 외부와 연결하는 연결연와부(25)와, 플랜지를 연결하는 원형철심(26)으로 구성하고, 압력검출장치의 실시예는, 노체압력이 이상적으로 상승시 설정기(31)에서 출력된 전류신호에 의해 트랜지스터(32)가 도통하며, 릴레이(34)가 도통시 솔레노이드밸브 SV3, SV2가 열리고 SV1이 닫혀 질소가 고로 내부로 배관을 퍼지하여 관통시키며, 타이머(35)에 설정된 시간이 종료시 솔레노이드밸브 SV1이 열리고, SV2, SV3가 닫혀 정상적인 압력을 검출함으로써, 고로 압력변화의 안정된 측정으로 안정된 고로조업이 가능하고, 압력검출공의 내부 이물제거시에도 주변 연와에 전혀 영향을 미치지 않아 연와의 손상을 방지할 수 있다.The present invention relates to a porous wand having a blast furnace function of the blast furnace body and a pressure detector hole function for detecting the pressure inside the blast furnace without having to insert the furnace pressure detection hole into the furnace. A pressure detection hole 23 having a passage for detecting the pressure in the furnace, a pressure detection performance 24 constructed between the left edge and the right edge, and a connecting edge 25 through which the blast furnace iron skin is connected to the outside; And a circular iron core 26 connecting the flanges, the embodiment of the pressure detecting device conducts the transistor 32 by the current signal output from the setter 31 when the furnace pressure ideally rises. When the relay 34 conducts, the solenoid valves SV3 and SV2 open and SV1 closes to purge the piping through nitrogen into the blast furnace.Then, the solenoid valve SV1 opens when the time set in the timer 35 ends, and the SV2 and SV3 close to normal. By detecting the pressure, it is possible to achieve stable blast furnace operation with a stable measurement of the pressure change and therefore, not even when the internal pressure of the foreign object removal detection ball exerts no effect on the surrounding kite prevent damage with open.
Description
본 발명은 고로본체 각 단별 압력을 안정적으로 검출하여 고로조업의 변화와 예측을 하기위한 것으로, 특히 노내압력 검출공을 노내로 삽입할 필요없이 고로본체의 연와기능과 고로내부의 압력을 검출하도록 한 압력검출공 기능을 가진 다공식연와에 관한 것이다.The present invention is to stably detect the pressure of each stage of the blast furnace body to change and predict the operation of the blast furnace, in particular to detect the ductile function of the blast furnace body and the pressure inside the blast furnace without having to insert the furnace pressure detection hole into the furnace. The present invention relates to a porous lead having a pressure detection hole function.
고로조업은 노정으로 장입되는 연,원료의 장입물을 송풍기(11)에서 공급되는 바람이 열풍로(12)에서 고온의 열을 흡수하여 1100℃ 이상의 고온상태로 송풍지관(13)을 통해 노내로 송풍되어 연료가 연소하면서 발생한 환원성가스에 의해 고온고압하에서 용선재를 생성하고 배출하는 작업이 연속적으로 이루어진다.In the blast furnace operation, the wind supplied from the blower 11 absorbs the high temperature heat from the hot air furnace 12 so that the charges of the raw materials and the raw materials charged into the furnace are blown into the furnace through the blower tube 13 at a high temperature of 1100 ° C. or higher. The work of producing and discharging the molten iron under high temperature and high pressure by the reducing gas generated by the combustion of fuel by blowing air is continuously performed.
이러한 고로조업에서 압력은 송풍지관(13)의 선단에서 발생하는 풍압(BP), 송풍량이 노내에서 고로의 연료인 코크스를 연소시켜 환원가스의 발생으로 확장된보시가스 발생량이 고로내부(1)를 상승하면서 노체 각 설치부위의압력(SP1,SP2,SP3,SP4,SP5,SP6), 풍압(BP)에 대비 장입물의 원활한 강하를 위해 비숍스크러브(17)의 비숍콘(18)으로 조절되는 노정압(TP)으로 구분하고, 이는 고로 내부 가스흐름과 노내상황을 판단하는 중요한 조업인자이다.In this blast furnace operation, the pressure is the wind pressure (BP) generated at the tip of the blower tube (13), and the amount of bosi gas generated by the generation of reducing gas by burning the coke, which is the fuel of the blast furnace, in the furnace (1). The furnace controlled by the bishop cone 18 of the bishop scrub 17 for smooth dropping of the charges against the pressure (SP1, SP2, SP3, SP4, SP5, SP6) and the wind pressure (BP) of each installation part while rising. It is divided into static pressure (TP), and it is an important operation factor to judge gas flow and furnace situation in blast furnace.
고로 본체에는 수직방향으로 6단으로 등분하여 압력계(14)가 설치되고, 각 단별 압력의 차이는 고로조업시 가스흐름,환원성,열교환 효율, 장입물 강하 등에 직결되고, 상부 압력계(SP5,SP6)의 급격한 변동은 장입물 장하정지, 취발과 직결된다.The main body of the blast furnace is divided into six stages in the vertical direction, and a pressure gauge 14 is installed, and the difference in pressure for each stage is directly connected to gas flow, reduction, heat exchange efficiency, load drop, etc. during the blast furnace operation, and upper pressure gauge (SP5, SP6) Sudden fluctuations in load directly affect the loading and unloading of the load.
또한, 압력계 단별 압력차이를 고로부위별 가스흐음에 대한 통기저항지수로 관리하고, 통기저항지수 균형의 변화는 곧 고로조업 상황의 변화이다.In addition, the pressure difference per pressure gauge is managed by the airflow resistance index for gas flow by blast furnace section, and the change in the airflow resistance balance is a change in the blast furnace operation situation.
이와같이, 고로본체 압력은 고로조업에서 중요한 조업인자로 이상값이나 측정이 불가능할 경우 고로조업에 치명적인 문제를 초래한다.As such, the blast furnace body pressure is an important operation factor in the blast furnace operation, and when an abnormal value or measurement is impossible, it causes a fatal problem in the blast furnace operation.
그리고, 고로의 압력검출은 조업중 각 단별압력(SP1,SP2,SP3,SP4,SP5,SP6)부에 설치된 압력검출단(4)에 플로우메타(8)로부터 공급되는 질소가 일정한 압력으로 노내로 공급될때 노내압력의 변화량이 질소의 진행 방해력으로 작용하여 질소가 노내로 취입되는 량은 노내의 압력변화에 따라 변하게 되어 이 변화를 이용하여 고로 노체압력을 검출한다.In addition, the pressure detection of the blast furnace is carried out to the furnace at a constant pressure of nitrogen supplied from the flow meter 8 to the pressure detection stage 4 installed in each stage pressure SP1, SP2, SP3, SP4, SP5, SP6 during operation. When supplied, the amount of change in furnace pressure acts as a barrier to the progression of nitrogen, and the amount of nitrogen blown into the furnace changes according to the pressure change in the furnace, and the furnace pressure is detected using this change.
노체압력계가 도 1 과 같이 설치되어 있는 상태에서 도 2 와 같이 좌측연와(21)와 우측연와(22)를 축조후 압력검출공 위치에 노내에서 철재 압력검출단(4)을 삽입하고, 도 3 의 용접부(30)로 고로철피와 압력계를 고정 용접한 후 압력검출단(4)과 주변의 연와적 사이의 공간을 케스타블 시공부(10)로메움,처리한다.In the state where the furnace pressure gauge is installed as shown in FIG. 1, after the left edge 21 and the right edge 22 are constructed as shown in FIG. 2, the steel pressure detection end 4 is inserted into the pressure detection hole in the furnace. After welding the blast furnace steel bar and the pressure gauge with the welding portion 30 of the gap between the pressure detection stage (4) and the convex convexity of the periphery with the castable construction unit (10).
상기와 같이 설치된 압려계는 고로조업중 노내에 삽입된 압려검출단(4)이 철재 배관으로 되어있어 노내의 고온고압,환원성 분위기에 의해 변형이 진행되고, 상승하는 환원성 가스로 인해 압력검출단(4)를 보호하고 있는 공간부인 케스타블 시공부(10)는 열화,환원되면서 주변연와보다 취약해져 열화되고 주변의 연와적(2)까지 이완시키는 문제가 있다.In the pressure gauge installed as described above, the pressure detection stage 4 inserted into the furnace during the blast furnace operation is made of steel piping, so that deformation is performed by the high temperature, high pressure, and reducing atmosphere in the furnace, and the pressure detection stage is increased due to the rising reducing gas ( 4) The castable construction part 10, which protects the space part, is deteriorated and reduced while being weaker than the surrounding lead and deteriorates, and there is a problem of relaxing up to the surrounding twisted product (2).
이러한 원인으로 압력검출단(4)의 선단부는 케스타 블 시공부(10)로 구성된 공간부가 떨어져 나가면서 노내의 장입물이 강하시 탈락된 부위로 퇴적되어 고로조업중 압력계가 이상값을 검출하거나 검출이 불가능한 사례가 빈번하다.For this reason, the distal end of the pressure detecting end 4 is separated into a drop-off part when the contents of the furnace are dropped while the space part consisting of the castable construction part 10 is dropped, and the pressure gauge detects an abnormal value during blast furnace operation. Frequently undetectable cases occur.
이러한 경우 고로휴지시 볼트(9)를 해체한 후 오리피스(6)부를 분리하고, 압력검출단(4) 선단의 변형부와 퇴적 장입물을 제트렌스(Z-LANCE)로 녹여 내거나, 굴착 브레이크를 이용하여 타격으로 제거한다.In this case, after releasing the blast furnace, the bolt 9 is dismantled, and the orifice 6 is separated, and the deformation part and the deposit of the tip of the pressure detection end 4 are melted with Z-LANCE or the excavation brake is applied. Remove by blow.
이 과정에서 케스타블 사공부(10)가 탈락되고 용해된 용융물이 열화된 주변 연화적의 목지부(29)에 침투하여 연와탈락을 초래하고 목지부를 이완시키는 문제점이 있었다.In this process, the castable sag part 10 is eliminated and the melt melt penetrates into the deteriorated surrounding soft wood part 29, causing soft dew drop and relaxing the wood part.
따라서, 본 발명은 상기와 같은 종래의 문제점을 해소하기 위해 창안된 것으로서, 노체압력을 원활히 검출하기 위하여 압력검출단 기능을 가진 연와를 노체 연와적에 축조하여 기존의 압력검출단과 주변 연와사이의 공간부를 제거하여 안정된 노체압력을 검출하는데 그 목적이 있다.Accordingly, the present invention was devised to solve the above-mentioned problems, and in order to smoothly detect the furnace pressure, a duct having a pressure detection end function is constructed in the furnace duct and the space between the existing pressure detector and the surrounding duct. The purpose is to detect a stable body pressure by removing it.
도 1 은 일반적인 고로장치의 구성도.1 is a configuration diagram of a typical blast furnace device.
도 2 는 도 1 의 압력검출부의 상세도.FIG. 2 is a detailed view of the pressure detector of FIG. 1. FIG.
도 3 은 종래의 압력검출공의 단면도.3 is a cross-sectional view of a conventional pressure detection hole.
도 4 는 본 발명에 적용되는 압력검출공의 연와적 축조도.Figure 4 is a schematic building diagram of the pressure detection hole applied to the present invention.
도 5 는 본 발명에 적용되는 다공식연와의 실시예.Figure 5 is an embodiment with a porous edge applied to the present invention.
도 6a 는 본 발명에 적용되는 압력검출 회로도.Figure 6a is a pressure detection circuit diagram applied to the present invention.
도 6b 는 본 발명에 적용되는 다공식연와의 유지 회로도.6B is a holding circuit diagram with a porous lead applied to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1 : 고로내부 2 : 연와적 3 : 고로철피 4 : 압력검출단1: Inside the blast furnace 2: Yeonwajeok 3: blast furnace bark 4: pressure detection stage
5 : 플랜지 6 : 오리피스 7 : 발신기 8 : 플로우메타5 flange 6 orifice 7 transmitter 8 flow meter
9 : 볼트 10 : 케스타블 시공부 11 : 송풍기 12 : 열풍로9: bolt 10: castable construction part 11: blower 12: hot stove
13 : 송풍지관 14 : 고로본체압력계 15 : 노정브리더 16 : 더스트케쳐DESCRIPTION OF SYMBOLS 13 Ventilation branch 14 Blast furnace body pressure gauge 15 Excursion breeder 16 Dust catcher
17 : 비숍스크러버 18 : 압력제어부 19 : 차단변 20 : 검출단융착부17: bishop scrubber 18: pressure control unit 19: cutoff valve 20: detection stage fusion unit
21 : 좌측연와 22 : 우측연와 23 : 연결연와부 24 : 압력검출단연와21: left edge 22: right edge 23: connection edge 24: pressure detection edge
25 : 연결연와부 26 : 원형철심 27 : 질소공급배관 28 : 연결니플25: connecting lead portion 26: circular iron core 27: nitrogen supply piping 28: connection nipple
29 : 목지부 30 : 용접부 31 : 설정기 32 : 트랜지스터29 wood part 30 weld part 31 setter 32 transistor
33 : 압력상한 설정기 34 : 릴레이 35 : 타이머 36 : 릴레이a접점33: Upper pressure limit setter 34: Relay 35: Timer 36: Relay a contact
37-1,37-2,37-3 : 질소공급변 38 : 릴레이b접점 BP : 풍압37-1,37-2,37-3: Nitrogen supply valve 38: Relay b contact BP: Wind pressure
TP : 노정압 SP1 : 1단압력 SP2 : 2단압력 SP3 : 3단압력TP: Static pressure SP1: 1st stage pressure SP2: 2nd stage pressure SP3: 3rd stage pressure
SP4 : 4단압력 SP5 : 5단압력 SP6 : 6단압력 100 : 압력검출부SP4: 4-stage pressure SP5: 5-stage pressure SP6: 6-stage pressure 100: Pressure detector
200 : 고로본체200: blast furnace body
이하, 첨부도면을 참조하여 본 고안에 따른 바람직한 실시 예에 대하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.
본 발명에 의한 압력검출용 연와의 실시예는,An embodiment of the pressure detection edge according to the present invention,
노내 압력을 검출하기 위한 통로가 형성된 압력검출공(23)와,A pressure detection hole 23 in which a passage for detecting the pressure in the furnace is formed;
좌측연와와 우측연와 사이에 축조한 압력검출공연와(24)와,A pressure detecting performance (24) constructed between the left edge and the right edge,
고로철피부를 관통하여 외부와 연결하는 연결연와부(25)와,A connecting edge 25 connected to the outside through the blast furnace steel skin,
플랜지를 연결하는 원형철심(26)을 포함하여 구성함이 바람직하다.It is preferable to include a circular iron core 26 connecting the flange.
본 발명에 의한 압력검출장치의 실시예는,An embodiment of the pressure detection device according to the present invention,
노체압력이 이상적으로 상승시 설정기(31)에서 출력된 전류신호에 의해 트랜지스터(32)가 도통하며, 릴레이(34)가 도통시 솔레노이드밸브 SV3, SV2가 열리고 SV1이 닫혀 질소가 고로 내부로 배관을 퍼지하여 관통시키며, 타이머(35)에 설정된 시간이 종료시 솔레노이드밸브 SV1이 열리고, SV2, SV3가 닫혀 정상적인 압력을 검출함이 바람직하다.When the body pressure rises ideally, the transistor 32 conducts by the current signal output from the setter 31, and when the relay 34 conducts, the solenoid valves SV3 and SV2 open and SV1 closes so that nitrogen is piped into the blast furnace. It is preferable that the solenoid valve SV1 is opened and the SV2 and SV3 are closed to detect normal pressure when the time set in the timer 35 ends.
도 5 와 같이 설치하기 위해 고로 연와적과 동일한 재질의 연와로 도 4 와 같이 노내압력을 검출하기 위한 통로인 압력검출공(23)이 5개 형성되고, 플랜지의 연결을 위한 원형철심(26)이 삽입된 연와와 고로철피부를 관통하여 외부와 연결하는 연결연와부(25)와, 이상압력 검출시 압력검출공(23)의 내부 퍼지를 위한 도 6a 및 도 6b 와 같이 구성된 루프로 이루어진다.In order to install as shown in FIG. 5, five pressure detecting holes 23, which are passages for detecting the internal pressure of the furnace, are formed with a flue of the same material as that of the blast furnace, and a circular iron core 26 for connection of a flange is formed. It is composed of a loop connected as shown in Figs. 6a and 6b for the internal purge of the pressure detection hole 23 when the abnormal pressure is detected, and the connecting edge 25 through which the inserted wire and the blast furnace iron skin are connected to the outside.
또한, 도 4 와 같은 구조는 도 2 의 압력계 설치위치의 공간부를 캐스타블로메움,처리하는것을 주변연와와 동일한 재질의 내화연와 재질로 바꾸어 연와적의 구조를 변형없이 안정되게 유지한다.In addition, the structure as shown in FIG. 4 changes the process of filling and processing the space part of the pressure gauge installation position of FIG.
고로철피(3)를 통과하여 외부로 연결하기 위한 연결연와부(25)가 가공되어 고로철피를 통과하여 외부와 연결하는데, 이와같이 구성된 후 오리피스(6), 압력검출용 질소배관, 플로우메타(8)를 연결하여 연와적 기증과 압력검출단 기능을 가진다.The connecting lead portion 25 for connecting to the outside through the blast furnace shell (3) is processed and passes through the blast furnace shell to connect with the outside, after this configuration orifice (6), pressure detection nitrogen pipe, flow meter (8) ), It has the function of continuous donation and pressure detection stage.
도 4 에 도시된 바와같이 고로연와 축조과정에서 압력계 설치위치의 좌우연와축조시 좌측연와(21)와 우측연와(22)를 축조하고 사이에 압력검출공 기능을 가진 압력검출공연와(24)를 축조한다. 이때, 압력검출단연와(24)의 연결연와부(25)가 고로내부(1)에서 철피측으로 도출된다.As shown in FIG. 4, the left edge 21 and the right edge 22 are constructed during the lateral blast furnace construction of the blast furnace and the construction of the pressure gauge, and a pressure detection performance 24 having a pressure detection hole function is constructed therebetween. do. At this time, the connecting edge 25 of the pressure detection edge 24 is led from the blast furnace inner portion 1 to the steel shell side.
축조후 조업시 노내압력의 누출을 방지하고 원형철심과 철피를 용접부(30)에 용접하여 철피에 고정하고, 원형철심(26) 종단부에 플랜지(5)를 용접한 후 오리피스(6)를 삽입하며, 질소공급배관(27)과 연결함으로써 연와기능과 압력검출공 기능이 가능하다.To prevent leakage of furnace pressure during operation after construction, weld the circular iron core and the iron shell to the weld part 30 and fix them to the iron shell, weld the flange 5 to the end of the circular iron core 26, and then insert the orifice 6. In addition, by connecting with the nitrogen supply pipe (27), the duct function and the pressure detection hole function is possible.
상기와 같이 축조된 압력검출 연와적을 이용한 압력검출은, 정상적인 고로작업시 고로 각 부위에서 발생하는 각 단별 노내압력(SP1,SP2,SP3,SP4)과 질소압력(NP)의 차압을 이용하여 오리피스(6)에서 압력을 검출한다. 이때, 압력의 관계는 NP > SP1,SP2,SP3,SP4,SP5,SP6 의 관계가 항상 발생한다.Pressure detection using the pressure detection cascade constructed as described above is performed by using an orifice by using the pressure difference between the respective internal furnace pressures (SP1, SP2, SP3, SP4) and nitrogen pressure (NP) generated at each part of the blast furnace during normal blast furnace operation. 6) detect the pressure. At this time, the relation of pressure always occurs in relation of NP> SP1, SP2, SP3, SP4, SP5, SP6.
그리고, 운전자는 오리피스(6)에서 검출된 압력을 근거로 조업을 하게 되는데, 고로 장입물이 하부로 강하하는 과정에서 압력검출단(4) 내부로 유입되면 고로의 노체압력에 이상적인 변화가 있는 것으로 판단하여 조업오류가 발생시 다음과 같이 작용하여 압력검출을 정상화시킨다.Then, the driver is operating based on the pressure detected in the orifice (6), when the blast furnace charge is introduced into the pressure detector (4) in the course of descending to the bottom there is an ideal change in the furnace pressure of the blast furnace Judging from this, if an operation error occurs, the pressure detection is normalized as follows.
압력검출단(4)이 막혀 노체압력이 이상적으로 상승하면 설정기(31)에서 나온 전류신호에 의해 상한설정기(33)를 거쳐 트랜지스터(32)가 도통하게 되고, 릴레이(34)가 온(on)된다.When the pressure detecting stage 4 is blocked and the body pressure rises ideally, the transistor 32 conducts through the upper limit setter 33 by the current signal from the setter 31, and the relay 34 is turned on. on)
상기 릴레이(34)가 도통되면 솔레노이드밸브 SV3,SV2가 열리고 SV1은 닫혀 질소가 고로 내부로 배관을 퍼지하여 관통시키는데, 이러한 동작은 타이머(35)에 의해 설정된 시간동안 이루어지며, 이때 압력은 질소압력 > 노내압력의 관계가 성립된다.When the relay 34 is turned on, the solenoid valves SV3 and SV2 are opened and the SV1 is closed to purge the piping through nitrogen into the blast furnace. This operation is performed for a time set by the timer 35, and the pressure is nitrogen pressure. > The relationship between furnace pressure is established.
상기 타이머(35)에 설정된 시간이 종료되면 SV1은 열리고, SV2, SV3는 닫혀 정상적인 압력검출이 가능하다.When the time set in the timer 35 ends, SV1 is opened, SV2 and SV3 are closed to allow normal pressure detection.
또한, 고로조업시 압력계가 압력검출단연와(24)로 구성되어 고로 연와적(2)과 동일한 재질, 구조로 부분적 열화 위험이 없고, 검출관 변형에 의한 압력불안정 및 막힘을 제거한다.In addition, the pressure gauge in the blast furnace operation is composed of a pressure detection edge 24, there is no risk of partial degradation due to the same material and structure as the blast furnace duct (2), and eliminates pressure instability and clogging caused by deformation of the detection tube.
압력검출공(23)이 막히는 경우 볼트(9)를 풀어 플랜지(5)를 해체하고, 제트란스로 통관하더라도 주변연와로 연결된 목지부가 없고, 연와로 구성되어 있어 용융물 발생에도 열화되지 않음은 물론 주변연와 목지부에 용융물 침투없이 압력검출연와(24)의 내부 이물질만 용해, 제거되고 주변 연와적에 대한 영향은 없게 된다.When the pressure detecting hole 23 is blocked, the bolt 9 is removed to dismantle the flange 5, and there is no wood part connected to the surrounding smoke even when the pipe is passed through the jet lance. Only the foreign matter inside the pressure detecting lead 24 without the penetration of the melt into the surrounding lead and wood land is dissolved and removed, there is no effect on the surrounding smoke.
이상에서 설명한 바와 같이 본 발명에 의하면, 고로 압력변화의 안정된 측정으로 안정된 고로조업이 가능하고, 압력검출공의 내부 이물제거시에도 주변 연와에 전혀 영향을 미치지 않아 연와의 손상을 방지할 수 있다.As described above, according to the present invention, stable blast furnace operation is possible by the stable measurement of the blast furnace pressure change, and even when removing foreign matters inside the pressure detection hole, it is possible to prevent damage to the ductile at all.
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| KR10-2000-0066660A KR100433343B1 (en) | 2000-11-10 | 2000-11-10 | pressure detector brick and detection apparator utilize this in Blast Furnace true form |
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| KR10-2000-0066660A KR100433343B1 (en) | 2000-11-10 | 2000-11-10 | pressure detector brick and detection apparator utilize this in Blast Furnace true form |
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| KR100433343B1 true KR100433343B1 (en) | 2004-05-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01295413A (en) * | 1988-05-24 | 1989-11-29 | Sumitomo Metal Ind Ltd | Method and apparatus for plasma vapor growth |
| JPH05171232A (en) * | 1991-12-26 | 1993-07-09 | Nisshin Steel Co Ltd | Pressure taking-out pipe for pressure measuring instrument |
| JPH07233407A (en) * | 1994-02-22 | 1995-09-05 | Nisshin Steel Co Ltd | Method for measuring pressure and instrument therefor |
| JP2003323911A (en) * | 2002-02-28 | 2003-11-14 | Casio Comput Co Ltd | Generator type power supply and electronic instrument |
-
2000
- 2000-11-10 KR KR10-2000-0066660A patent/KR100433343B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01295413A (en) * | 1988-05-24 | 1989-11-29 | Sumitomo Metal Ind Ltd | Method and apparatus for plasma vapor growth |
| JPH05171232A (en) * | 1991-12-26 | 1993-07-09 | Nisshin Steel Co Ltd | Pressure taking-out pipe for pressure measuring instrument |
| JPH07233407A (en) * | 1994-02-22 | 1995-09-05 | Nisshin Steel Co Ltd | Method for measuring pressure and instrument therefor |
| JP2003323911A (en) * | 2002-02-28 | 2003-11-14 | Casio Comput Co Ltd | Generator type power supply and electronic instrument |
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