KR19990039150U - Automatic feeding device of calming material to prevent the occurrence of slope - Google Patents
Automatic feeding device of calming material to prevent the occurrence of slope Download PDFInfo
- Publication number
- KR19990039150U KR19990039150U KR2019980005271U KR19980005271U KR19990039150U KR 19990039150 U KR19990039150 U KR 19990039150U KR 2019980005271 U KR2019980005271 U KR 2019980005271U KR 19980005271 U KR19980005271 U KR 19980005271U KR 19990039150 U KR19990039150 U KR 19990039150U
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- South Korea
- Prior art keywords
- hopper
- converter
- basis weight
- pressure
- liner
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling 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—Arrangement of monitoring devices; Arrangement of safety devices
- F27D2021/0007—Monitoring the pressure
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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—Arrangement of monitoring devices; Arrangement of safety devices
- F27D2021/0057—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects
- F27D2021/0085—Security or safety devices, e.g. for protection against heat, noise, pollution or too much duress; Ergonomic aspects against molten metal, e.g. leakage or splashes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
본 고안은 용선을 용강으로 정련하는 제강공정인 전로에서 전로 취련중 슬로핑(slopping)을 사전에 방지하기 위한 일환으로 투입되는 진정재를 투입하는 장치에 관한 것으로,노상호퍼의 하부에는 실린더와 연결설치된 슬라이딩 게이트가 있는 평량호퍼를 설치하고, 이 평량호퍼로 부터 투입라이너의 일정지점에는 투입라인을 퍼지하는 노즐구와 유량콘트롤러, 그리고 질소밸브로 구성되는 질소 퍼지라인이 설치되는 진정재 투입장치부와, 투입라이너와 배가스 덕트상에 압력값을 측정하는 압력기가 설치되어 있고, 이 두개의 압력값 차이를 제어하는 압력차 분석기가 설치되는 구성을 가지는 슬로핑 사전감지 장치부로 이루어져서 된 것이다.The present invention relates to a device for injecting a sedative material which is introduced as a part to prevent the sweeping during converter drilling in the converter, a steelmaking process for refining molten iron into molten steel. A sintering material hopper with a sliding gate installed, and at a certain point of the inlet liner from the basis weight hopper, a sintering material inlet unit is provided with a nozzle port for purging the inlet line, a flow controller, and a nitrogen purge line consisting of a nitrogen valve. It is composed of a slope pre-sensing device having a configuration in which a pressure gauge for measuring a pressure value is installed on an input liner and an exhaust gas duct, and a pressure difference analyzer for controlling the difference between the two pressure values is installed.
Description
본 고안은 용선을 용강으로 정련하는 제강공정인 전로에서 전로 취련중 슬로핑(slopping)을 사전에 방지하기 위한 일환으로 투입되는 진정재를 투입하는 장치에 관한 것으로, 특히 전로 노내에 산소를 취입하는 취련작업중 전로 노내의 급격한 산화 및 탈탄 반응으로 인하여 전로 노내의 용융물이 전로노구를 통하여 전로 밖으로 용출되는 슬로핑(slopping)의 발생을 사전에 감지하여 진정재를 자동으로 투입하도록한 것이다.The present invention relates to a device for injecting a sedative material that is introduced as a part to prevent the slitting during converter smelting in a converter, a steelmaking process for refining molten iron into molten steel, in particular to inject oxygen into the converter furnace. Due to the rapid oxidation and decarburization reaction in the converter furnace during the blowing operation, the smelting material is automatically inputted by detecting the occurrence of the slipping of the melt in the converter furnace out of the converter through the converter furnace ball.
일반적으로 용선을 용강으로 정련하는 제강공정인 전로의 작업공정은 전로(10) 노내에 고철과 용선을 장입한후, 산소랜스(20)를 통하여 99.9%의 순수한 산소를 취입하여, 산화 및 탈탄 반응을 통해 용선을 용강으로 정련 한다.In general, the work process of the converter, which is a steelmaking process for refining molten iron with molten steel, charges 99.9% pure oxygen through the oxygen lance 20 after charging the scrap iron and molten iron in the furnace 10 furnace, thereby oxidizing and decarburizing the reaction. The molten iron is refined to molten steel.
그리고 도 1에 도시된 바와같이 제강공정인 전로(10)에서 취련작업 중 발생된 배가스는 배가스 덕트(30)라인의 말단에 설치된 강제 유인송풍기(32)의 흡입력에 의하여 배가스가 배가스 덕트(30)의 흐름을 타고 집진기(31)를 통하여 집진이 이루어진다,As shown in FIG. 1, the exhaust gas generated during the drilling operation in the converter 10, which is a steelmaking process, is discharged from the exhaust gas duct 30 by the suction force of the forced induction fan 32 installed at the end of the exhaust gas duct 30 line. In the flow of dust is collected through the dust collector 31,
이와같은 과정을 거친 배가스는 굴뚝(33)으로 방출 처리한다.The exhaust gas that has undergone such a process is discharged to the chimney 33.
또한 도 2에 도시된 바와같이 전로(10) 노내에 산소랜스(20)를 통하여 99.9%의 산소를 취입하여 전로(10) 노내의 산화와 탈탄 반응을 통한 용선을 용강으로 정련한다.Also, as shown in FIG. 2, 99.9% of oxygen is injected into the furnace 10 through the oxygen lance 20 to refine the molten iron through oxidation and decarburization in the furnace 10.
이러한 취련작업 과정에서는 전로(10)노내의 급격한 산화 및 탈탄반응에 의하여 배가스 발생량이 급격히 증가함과 동시에 슬라그의 포밍(forming)현상에 기인된 전로노구(11)를 통해 전로(10) 밖으로 용융물이 용출되는 슬로핑이 발생된다.In this process, the exhaust gas is rapidly increased due to rapid oxidation and decarburization in the furnace 10 and at the same time, the melt flows out of the converter 10 through the furnace furnace 11 caused by the slag forming phenomenon. Eluted slopeing occurs.
상기와같이 하여 슬로핑이 발생시 전로(10) 노내의 슬라그포밍을 억제하기 위한 일환으로 진정재를 투입하는바,As described above, when sloping occurs, a sedative material is introduced as part of suppressing slag forming in the converter 10,
종래의 진정재 투입작업은 도 3에서 도시된 바와같이 전로(10)의 노상호퍼(40)에 저장되어 있는 진정재를 전기적인 진동장치인 피더(feeder)(41)를 가동시켜 원료를 노상호퍼(40)로부터 불출하고, 불출된 진정재는 평량호퍼(42)에서 작업자가 원하는 진정재를 평량한 후 노상호퍼(40)의 피더(41)를 중지시키고, 평량호퍼(42)의 피더(43)를 가동시켜 평량호퍼(42)로 부터 불출된 진정재가 투입라이너(44)를 통하여 전로(10)노내에 투입하게 된다.In the conventional sedation material input operation as shown in Figure 3 by operating the feeder (41), which is an electric vibrator of the sedation material stored in the hopper 40 of the converter 10, the raw material hopper Discharged from the 40, the sedation material is discharged from the basis weight hopper 42 after weighing the sedation material desired by the operator stops the feeder 41 of the hearth hopper 40, feeder 43 of the basis weight hopper 42 By operating the sedation material discharged from the basis weight hopper 42 is introduced into the furnace 10 through the input liner 44.
단 상기 진정재의 투입과 평량에 관한 제어장치에 관한 일반적인 작용은 다음과 같다.However, the general operation of the control device regarding the input and basis weight of the sedation material is as follows.
작업자가 노상호퍼(40)의 진정재를 투입하기 위해서는 노상호퍼(40)의 원료 불출장치인 피더(41)를 작동시켜 원료를 불출하고, 불출된 원료가 평량호퍼(42)에 채워지면 로드셀(load cell)(45)의 무게값이 저항값으로 변화를 가져오고 이 로드셀(45)로부터 저항값을 받은 변환기(50)는 저항값을 미리 볼트값으로 변환하여 PLC(51)에 전달한다.In order for the worker to inject the sedation material of the hearth hopper 40, the feeder 41, which is a material dispensing device of the hearth hopper 40, is operated to discharge the raw material, and when the discharged material is filled in the basis weight hopper 42, the load cell ( The weight of the load cell 45 changes to the resistance value, and the converter 50 receives the resistance value from the load cell 45 converts the resistance value into a volt value in advance and transmits it to the PLC 51.
그후 상기 PLC(51)는 미리 볼트값에 따른 무게값을 계산하여 평량값을 출력장치인 모니터에 보냄으로써 작업자가 원하는 평량값에 이르면 노상호퍼(40)의 피더(41)를 수동이나 자동적으로 스톱(stop)이 되어지게 하며, 평량호퍼(42)에 평량된 진정재를 불출시에는 평량호퍼(42)의 피더(43) 작동을 통하여 투입라이너(44)에서 전로(10) 노내로 진정재를 투입한다.After that, the PLC 51 calculates the weight value according to the volt value in advance and sends the basis weight value to the monitor which is an output device to stop the feeder 41 of the hearth hopper 40 manually or automatically when the desired basis weight value is reached. (stop), and when discharging the weighted sedation material in the basis weight hopper (42) through the feeder (43) operation of the basis weight hopper (42) from the input liner (44) into the furnace (10) furnace Input.
이와같은 종래의 진정재 투입장치는 예측하기 어려운 상태에서 발생되는 슬로핑의 발생방지를 위한 사전조치가 어려우며 슬로핑을 감지하고 예측하는 방법은 작업자의 작업감각에 의존하고 있어 취련작업의 비능률성이 초래될 뿐 아니라 효과적인 슬로핑 발생방지에 관한 측면에서 진정재의 평량작업에 소요되는 시간만큼의 조치 시간이 늦어짐으로 인하여 슬로핑의 빈번한 발생으로 환경의 오염과 용융물의 용출에 기인된 출강 실수율의 감소등 환경적 원가적인 문제점이 발생되고 있다.Such a conventional sedation material input device is difficult to take precautions to prevent the occurrence of the slope occurs in an unpredictable state, and the method of detecting and predicting the slope depends on the worker's sense of work. In addition to this, in terms of effective prevention of the occurrence of slopes, the delay of action time by the time required for weighing the sedation material is delayed, and thus the frequent occurrence of slopes reduces the tapping error rate caused by the pollution of the environment and the elution of the melt. Environmental cost problems are occurring.
본 고안은 상기와 같은 종래의 제반 문제점을 감안하여 이를 해소하고자 고안한 것으로, 제강공정인 전로에서 취련 작업시 슬로핑의 사전 억제를 위한 진정재의 투입작업에 있어서, 슬로핑의 발생여부를 사전감지하여 진정재가 자동으로 투입되게 함으로써 취련작업의 작업능률을 향상시키고, 대기 환경 오염을 방지하며, 출강실수율의 저하요인을 일소함과 아울러 안정적인 취련작업에 기인된 생산성을 향상시킬 수 있도록한 슬로핑 발생방지용 진정재의 자동 투입장치를 제공함에 그 목적이 있는 것이다.The present invention was devised to solve the above problems in view of the above-mentioned conventional problems, and in the input operation of the sedative material for the preliminary suppression of the slope during the blowing operation in the converter which is the steelmaking process, the detection of the occurrence of the slope in advance As the sedation material is automatically injected, the slopeing improves the work efficiency of the drilling work, prevents the pollution of the air environment, eliminates the deterioration factor of the attendance rate, and improves the productivity due to the stable drilling work. Its purpose is to provide an automatic dosing device for prevention sedatives.
상기의 목적을 달성하기 위하여 본 고안은 전로의 취련작업중 슬로핑의 발생을 사전에 감지하는 슬로핑 사전감지 장치부와, 상기 슬로핑 사전감지 장치부에서 감지된 값에 의하여 진정재가 연속적으로 투입되게 하는 진정재 투입장치부로 구성된 슬로핑 발생방지용 진정재의 자동 투입장치를 마련함을 특징으로 한다.In order to achieve the above object, the present invention provides a sloping pre-sensing device unit for detecting the occurrence of the slope in advance during the blowing operation of the converter, and so that the sedative material is continuously input by the value detected by the sloping pre-sensing device. It characterized in that it provides an automatic input device of the sedative material for preventing the occurrence of the slope consisting of the sedation material input device.
도 1은 일반적인 전로 작업공정을 설명하기 위한 사시도1 is a perspective view for explaining a general converter work process
도 2는 일반적인 전로 작업시 슬로핑의 발생 상황을 나타낸 사시도2 is a perspective view showing the occurrence of the slope during the general converter operation
도 3는 종래의 슬로핑 발생방지용 진정재 투입장치를 나타낸 사시도Figure 3 is a perspective view showing a conventional sedation device for preventing the occurrence of slopes
도 4는 본 고안의 슬로핑 발생방지용 진정재 투입장치를 나타낸 사시도Figure 4 is a perspective view showing a device for inserting the sedation material for preventing the occurrence of slope of the present invention
도 5는 본 고안의 진정재 연속 투입장치부를 발췌한 사시도Figure 5 is a perspective view of the sedative material continuous input device portion of the present invention
도 6는 본 고안의 슬로핑 감지장치부를 발췌한 사시도Figure 6 is a perspective view of the slope detection device of the present invention
* 도면의 주요부분에 대한 부호설명 ** Explanation of Signs of Major Parts of Drawings *
A : 진정재 투입장치부 B : 슬로핑 사전감지 장치부A: Sedative material input device B: Sloped pre-sensing device
10 : 전로 11 : 전로노구10: converter 11: converter
20 : 산소랜스 30 : 배가스 덕트20: oxygen lance 30: exhaust gas duct
31 : 집진기 32 : 강제유인 송풍기31: dust collector 32: forced attraction blower
33 : 굴뚝 40 : 노상호퍼33: chimney 40: road hopper
41 : 피더 42 : 평량호퍼41: feeder 42: basis weight hopper
43 : 피더 44 : 투입라이너43: feeder 44: input liner
45 : 로드셀 46 : 부원료 자켓부45: load cell 46: subsidiary jacket part
50 : 변환기 51 : PLC50: converter 51: PLC
60 : 실린더 61: 유압라인60: cylinder 61: hydraulic line
62 : 슬라이딩 게이트 64 : 질소밸브62: sliding gate 64: nitrogen valve
65 : 유량콘트롤러 66 : 질소라인65 flow controller 66 nitrogen line
67 : 질소노즐 68 : 노즐구67: nitrogen nozzle 68: nozzle
70 : 압력차 분석기 71.72 : 압력측정기70 pressure difference analyzer 71.72 pressure gauge
본 고안의 도 4는 슬로핑 발생방지용 진정재의 투입장치를 나타낸 사시도이고, 도 5는 본 고안의 진정재 연속 투입장치부를 발췌한 사시도이며, 도 6는 본 고안의 슬로핑 감지장치부를 발췌한 사시도이다.Figure 4 of the present invention is a perspective view showing a device for inserting the sedation material for preventing the occurrence of the sling, Figure 5 is a perspective view of the continuous input device sedation material of the present invention, Figure 6 is a perspective view of the slope detection device part of the present invention to be.
이와같은 본 고안은 저부에 피더(41)가 설치된 노상호퍼(40)와, 이의 하부에 로드셀(45)과 피더(43)가 설치된 평량호퍼(42), 및 투입라인너(44)와, 부원료 자켓부(46)을 통하여 배가스 덕트(30)를 통해 전로(10)내로 투입되도록한 통상의 장치에 있어서, 진정재 투입장치부(A)는 노상호퍼(40)의 하부에는 실린더(60)와 연결설치된 슬라이딩 게이트(62)가 있는 평량호퍼(42)를 설치하고, 이 평량호퍼(42)로 부터 투입라이너(44)의 일정지점에는 질소를 퍼지하는 노즐구(68)와 유량콘트롤러(65), 그리고 질소밸브(64)로 구성되는 질소 퍼지라인이 설치되는 형태의 구성을 가지고 있다.The present invention as described above is the subbed hopper 40, the feeder 41 is installed at the bottom, the load cell 45 and the feeder 43 is installed in the lower portion of the basis weight hopper 42, and the input liner 44, and subsidiary materials In the conventional apparatus to be introduced into the converter 10 through the exhaust gas duct 30 through the jacket portion 46, the sedation material injector portion (A) is a cylinder 60 and the lower portion of the hearth hopper (40); A basis weight hopper 42 having a sliding gate 62 connected thereto is provided, and a nozzle port 68 and a flow controller 65 for purging nitrogen at a predetermined point of the input liner 44 from the basis weight hopper 42 are provided. And, it has a configuration in which the nitrogen purge line consisting of a nitrogen valve 64 is installed.
또한 슬로핑 사전감지 장치부(B)는 부원료 자켓부(46)의 직상부인 투입라이너(44)와, 배가스 집진기(31)의 전단 혹은 후단부인 배가스 덕트(30)상에 압력값을 측정하는 압력측정기(71)(72)가 설치되어 있고, 이 두개의 압력값 차이를 제어하는 압력차 분석기(70)가 설치되는 구성을 가진다.In addition, the slope pre-sensing device portion B is a pressure for measuring the pressure value on the input liner 44, which is directly above the sub-material jacket portion 46, and the exhaust gas duct 30, which is the front end or the rear end of the exhaust gas dust collector 31. The measuring instruments 71 and 72 are provided, and the pressure difference analyzer 70 which controls the difference of these two pressure values is provided.
이와같이 구성된 본 고안의 작용을 상세히 설명하면 다음과같다.Referring to the operation of the present invention configured in this way as follows.
본 고안은 도 4에서 도시된 바와같이 용선을 용강으로 정련하는 전로 취련작업과정에서 전로(10) 노내의 급격한 산화 및 탈탄반응에 의하여 배가스 발생량이 급격이 증가하면 이 배가스와 항상 접하는 부원료 자켓(46)부의 압력이 상승하게 되고, 정상적인 배가스 플로우에 의하여 집진기(31)전단의 배가스 압력과 현격한 차이를 나타나게 된다.The present invention, as shown in Figure 4 when the flue gas generation by the rapid oxidation and decarburization reaction in the furnace 10 furnace in the converter refining process of refining the molten iron to molten steel, the secondary raw material jacket that always comes into contact with the exhaust gas (46) The pressure of the part increases, and the normal exhaust gas flow causes a marked difference from the exhaust gas pressure of the front end of the dust collector 31.
따라서 투입라이너(44)와 배가스덕트(30)상에 설치된 압력측정기(쎈서)(71)(72)가 상승된 압력을 감지하여 이를 압력차 분석기(70)로 보내고 이 압력차 분석기(70)는 압력을 분석한 후에 이를 PLC(51)로 보낸다.Therefore, the pressure measuring devices 71 and 72 installed on the input liner 44 and the exhaust gas duct 30 sense the elevated pressure and send it to the pressure difference analyzer 70. After analyzing the pressure it is sent to the PLC (51).
상술한 바와같이 하여 압력값을 받은 PLC(51)(압력값의 차이가 정상적인 취련작업시에는 적으며, 슬로핑 발생시는 정상값의 압력값보다 높다)는 노상호퍼(40)의 피더(41)를 작동시키고, 평량 호퍼(42)의 슬라이딩 게이트(62)를 실린더(60)의 작동으로 오픈(open)시킴과 동시에 투입 라인너(44)에 설치된 질소밸브(64) 및 유량콘트롤러(55)를 오픈시켜 노상호퍼(40)의 진정재가 평량호퍼(42)에 평량되지 않고 직접적으로 전로(10) 노내에 정해진 시간동안 진정재가 투입된다.As described above, the PLC 51 having received the pressure value (the difference in the pressure value is small in the normal drilling operation and is higher than the normal pressure value in the case of the slipping occurrence) is the feeder 41 of the hearth hopper 40. To open the sliding gate 62 of the basis weight hopper 42 by the operation of the cylinder 60 and simultaneously open the nitrogen valve 64 and the flow controller 55 installed in the input liner 44. The sedation material of the hearth hopper 40 is not weighed into the basis weight hopper 42 by being opened, and the sedation material is directly injected into the furnace 10 for a predetermined time.
상기 질소의 역할은 전로(10)에서 투입라이너(44)를 따라 올라오는 고열의 화염을 차단함과 동시에 진정재를 전로(10)내로 원할하게 투입되게 하는 역활을 한다. 이는 질소가 투입라이너(44)를 따라 전로(10)내로 들어가기 때문에 흡입력이 발생하여 가능하다.The role of nitrogen serves to block the flame of the high temperature rising along the liner 44 in the converter (10) and at the same time to smoothly feed the sedative into the converter (10). This is possible because the suction force is generated because nitrogen enters the converter 10 along the input liner 44.
이와같이하여 진정재를 전로(10)내에 자동으로 투입하면 전로(10) 노내의 슬라그 볼륨(volumn)이 낮아지고 전로 취련작업은 안정을 취하게 된다.In this way, if the sedative material is automatically injected into the converter 10, the slag volume (volumn) in the furnace 10 is lowered, and the converter blow job is stabilized.
한편 진정재의 투입이 완료되면, PLC(51)는 노상호퍼(40)의 피더(41) 동작을 중지하고 이어서 평량호퍼(42)의 슬라이딩 게이트(62)를 닫으며 질소 퍼지 장치의 유량콘트롤러(65) 및 질소밸브(64)를 크로즈(close)하게 된다.On the other hand, when the injection of the sedative material is completed, the PLC 51 stops the feeder 41 operation of the hearth hopper 40, and then closes the sliding gate 62 of the basis weight hopper 42 and the flow controller 65 of the nitrogen purge device. ) And the nitrogen valve 64 is closed.
상기 PLC(51)와, 노상호퍼(40)의 피더(41), 그리고 투입 라인너(44)에 설치된 질소밸브(64) 및 콘크롤밸브(55), 평량호퍼(42)의 저부에 설치된 실린더(60)와의 전기적 연결시스템은 통상의 것으로 본 고안에서의 상세한 설명은 생략한다.A cylinder installed at the bottom of the nitrogen valve 64, the cone valve 55, and the basis weight hopper 42 provided at the PLC 51, the feeder 41 of the hearth hopper 40, and the input liner 44. Electrical connection system with the (60) is conventional and the detailed description in the present invention is omitted.
또한 본 고안의 질소라인은 투입라이너(44)의 원주면을 따라 등간격으로 다수의 노즐구(68)를 형성시키고, 이에 링 형태로된 질소라인(66)의 내측에 등간격으로 형성된 질소노즐(67)을 삽입시켜 질소가 균일하게 주입되도록 하였다.In addition, the nitrogen line of the present invention forms a plurality of nozzle holes 68 at equal intervals along the circumferential surface of the input liner 44, and thus nitrogen nozzles formed at equal intervals inside the nitrogen line 66 in a ring shape. (67) was inserted so that nitrogen was injected uniformly.
이상과같은 본 고안은 제강공정인 전로에서 취련중 슬로핑의 발생여부를 사전에 시스템적으로 감지하여 진정재가 자동으로 투입되게 함으로써, 작업자의 심리적인 작업피로도가 격감되고 취련작업의 안정성이 유지되며 대기환경 오염을 예방함과 동시에 용강의 생산성 향상에 기여하고 작업의 안정성을 기할 수 있는 효과가 있다.The present invention as described above by the system to detect the occurrence of the slope during the drilling in the steelmaking process in advance, so that the sedative material is automatically injected, the psychological work fatigue of the worker is reduced and the stability of the drilling work is maintained. At the same time, it prevents air pollution and contributes to productivity improvement of molten steel and ensures stability of work.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980005271U KR200301640Y1 (en) | 1998-04-06 | 1998-04-06 | Automatic feeding device of calming material to prevent the occurrence of slope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980005271U KR200301640Y1 (en) | 1998-04-06 | 1998-04-06 | Automatic feeding device of calming material to prevent the occurrence of slope |
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| Publication Number | Publication Date |
|---|---|
| KR19990039150U true KR19990039150U (en) | 1999-11-05 |
| KR200301640Y1 KR200301640Y1 (en) | 2003-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR2019980005271U Expired - Fee Related KR200301640Y1 (en) | 1998-04-06 | 1998-04-06 | Automatic feeding device of calming material to prevent the occurrence of slope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100742846B1 (en) * | 2001-03-21 | 2007-07-25 | 주식회사 포스코 | Upper side raw material dispensing device of converter hopper |
| CN115255899A (en) * | 2022-08-02 | 2022-11-01 | 深圳市联合创新实业有限公司 | Screw feeding vacuum dust removal device and equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100838719B1 (en) * | 2001-09-27 | 2008-06-16 | 주식회사 포스코 | Slag Calm Filling Device |
| KR101019420B1 (en) | 2010-12-02 | 2011-03-07 | 김호천 | Slag Overflow Protection Device of Slag Port |
-
1998
- 1998-04-06 KR KR2019980005271U patent/KR200301640Y1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100742846B1 (en) * | 2001-03-21 | 2007-07-25 | 주식회사 포스코 | Upper side raw material dispensing device of converter hopper |
| CN115255899A (en) * | 2022-08-02 | 2022-11-01 | 深圳市联合创新实业有限公司 | Screw feeding vacuum dust removal device and equipment |
| CN115255899B (en) * | 2022-08-02 | 2024-06-07 | 深圳市联合创新实业有限公司 | Screw feeding vacuum dust removing device and equipment |
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| KR200301640Y1 (en) | 2003-05-17 |
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