KR100380135B1 - Refractory Thermal Burner - Google Patents
Refractory Thermal Burner Download PDFInfo
- Publication number
- KR100380135B1 KR100380135B1 KR10-1998-0055512A KR19980055512A KR100380135B1 KR 100380135 B1 KR100380135 B1 KR 100380135B1 KR 19980055512 A KR19980055512 A KR 19980055512A KR 100380135 B1 KR100380135 B1 KR 100380135B1
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- South Korea
- Prior art keywords
- converter
- refractory
- burner
- cover
- forbidden
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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
- C21C5/44—Refractory linings
- C21C5/445—Lining or repairing the taphole
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
본 발명은 전로의 출강구내화물 보열버너에 관한 것으로, 특히 그 전단면이 전로(1)의 외벽에 밀착되도록 출강구철피(7)에 끼워지면서 그 외주면 전단부에 수분분사구(24)가 원주방향으로 형성되고, 그 후방측에 모터(30)에 의해 구동되는 송풍기(27)가 내장되는 금물커버(22)와; 그 후단부가 상기 금물커버(22)의 중앙에 내장되면서 그 전단부가 슬리브연와(4)를 통해 내화물(5)에 삽입되고, 상기 금물커버(22)를 관통하는 가스 및 에어라인(20,21)의 분사노즐(26,25)이 그 후단측에 관통 내장되며, 그 외주면에 화염방출구(32)가 형성되는 버너관(31)으로 구성되는 것을 특징으로 하는 전로의 출강구내화물 보열버너에 관한 것이다.The present invention relates to a heat-resistant refractory burner of the exit of the converter, in particular, the water injection port 24 in the circumferential direction of the front end of the outer peripheral surface while the front end is fitted to the exit steel bar 7 so that the front surface is in close contact with the outer wall of the converter (1) A gold cover 22 formed at the rear side and having a blower 27 driven by the motor 30 at a rear side thereof; The rear end is embedded in the center of the forbidden cover 22 and the front end is inserted into the refractory 5 through the sleeve edge 4 and the gas and air lines 20 and 21 passing through the forbidden cover 22. The injection nozzle 26,25 of the converter is characterized in that the burner tube heat insulation burner of the converter characterized in that it is composed of a burner tube 31 is formed through the rear end, the flame outlet 32 is formed on the outer peripheral surface will be.
Description
본 발명은 전로의 출강구내화물 보열버너에 관한 것으로, 특히 전로출강구 주변의 내화물만을 별도 가열시킴으로써 축조초기 수분에 의한 부실함을 방지하고,용융물에 의한 화학적 침식을 예방할 수 있는 전로의 출강구내화물 보열버너에 관한 것이다.The present invention relates to a furnace refractory heat insulation burner of the converter, and in particular, by heating only the refractory around the converter outlet, the insulator refractory heat insulation of the converter which can prevent inferiority due to initial moisture in the building and prevent chemical erosion by the molten material. It's about a burner.
일반적으로, 전로에 용선을 장입하기 전에 급격한 온도변화에 따른 내화물부식을 방지하기 위하여 전로내의 전체내화물을 예열시키게 된다.In general, the entire refractory in the converter is preheated in order to prevent refractory corrosion due to a sudden temperature change before charging the molten iron in the converter.
그러나, 전로내의 전체내화물을 상대로 예열하는 경우, 출선구주변의 내화물에는 충분한 예열효과를 미치지 않게 되고, 이로부터 여러 가지 문제점이 야기된다.However, when preheating the entire refractory in the converter, the refractory around the exit port does not have a sufficient preheating effect, which causes various problems.
즉, 도1에 도시한 바와같이 출강구의 주변내화물(5)은 축조시 다량의 수분을 함유한 부정형내화물로서 충분히 가열하여 건조시키지 않을 경우, 축조후 최초출강시 철피로부터 뜨는 현상이 발생되고, 동시에 슬리브연와(4)가 출강구로부터 분리되는 문제가 발생된다.That is, as shown in Figure 1, the peripheral refractory (5) of the tapping hole is an irregular refractory containing a large amount of water during the construction, if not sufficiently heated and dried, the phenomenon of floating from the bark during the initial tapping after construction, At the same time, a problem arises in that the sleeve edge 4 is separated from the tap hole.
더욱이, 출강구의 주변내화물(5)이 취약할 경우 전로(1)내 내화물전반에 걸쳐 악영향을 미치게 되어 결국, 로체의 수명을 단축시키게 된다.Moreover, if the peripheral refractory 5 of the tap hole is vulnerable, it adversely affects the entire refractory in the converter 1, which in turn shortens the life of the furnace.
본 발명은 전로출강구 주변의 내화물만을 별도 가열시킴으로써 축조초기 수분에 의한 부실함을 방지하고, 용융물에 의한 화학적 침식을 예방할 수 있는 전로의 출강구내화물 보열버너를 제공함에 그 목적이 있다.An object of the present invention is to provide a burner refractory insulation burner of the converter can prevent the insolvency due to the initial build-up moisture by heating only the refractory around the converter outlet, and prevent chemical erosion by the melt.
도1은 종래의 전로 출강구를 나타내는 단면도,1 is a cross-sectional view showing a conventional converter outlet,
도2는 본 발명에 따른 전로 출강구를 나타내는 사시도,Figure 2 is a perspective view showing the converter outlet according to the invention,
도3은 본 발명에 따른 전로의 출강구내화물 보열버너를 나타내는 부분절개사시도,Figure 3 is a partial cutaway perspective view showing the refractory heat insulation burner of the converter in accordance with the present invention,
도4는 본 발명에 따른 전로의 출강구내화물 보열버너의 작동상태를 나타내는 상태도이다.Figure 4 is a state diagram showing the operating state of the cargo refractory burner of the tap exit of the converter according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
1: 전로 4: 슬리브연와 5: 내화물 7: 출강구철피 9: 출강구금물 20: 도시가스라인 21: 에어라인 22: 금물커버 23: 밀착판 24: 수분방출구 25,26: 분사노즐 27: 송풍기 28: 지지판 29: 공기유입구 30: 모터 31: 버너관 32: 화염분사구 34: 손잡이DESCRIPTION OF REFERENCE NUMERALS 1 converter 4 sleeve lead 5 refractory 7 tap steel bar 9 tap steel tap 20: city gas line 21 air line 22 crack cover 23 contact plate 24 moisture outlet 25 and 26 spray nozzle 27 Blower 28: Support plate 29: Air inlet port 30: Motor 31: Burner tube 32: Flame spray port 34: Handle
상기한 목적을 달성하기 위하여 본 발명은 그 전단면이 전로의 외벽에 밀착되도록 출강구철피에 끼워지면서 그 외주면 전단부에 수분분사구가 원주방향으로형성되고, 그 후방측에 모터에 의해 구동되는 송풍기가 내장되는 금물커버와; 그 후단부가 상기 금물커버의 중앙에 내장되면서 그 전단부가 슬리브연와를 통해 내화물에 삽입되고, 상기 금물커버를 관통하는 가스 및 에어라인의 분사노즐이 그 후단측에 관통 내장되며, 그 외주면에 화염방출구가 형성되는 버너관으로 구성되는 것을 특징으로 하는 전로의 출강구내화물 보열버너를 제공한다.In order to achieve the above object, the present invention is a blower which is formed in the circumferential direction of the water injection port in the front end portion of the outer peripheral surface while the front end is fitted into the steel strip so that the front surface is in close contact with the outer wall of the converter; A forbidden cover with a built-in; The rear end is embedded in the center of the forbidden cover, and the front end is inserted into the refractory through the sleeve edge, and the injection nozzle of the gas and air line penetrating the forbidden cover is penetrated and embedded in the rear end thereof, and the flame chamber is disposed on the outer circumferential surface thereof. Provided is a cargo refrigeration burner of the exit tap of the converter characterized in that the outlet is formed of a burner tube.
도면을 참조하여 본 발명의 구성을 설명한다.The configuration of the present invention will be described with reference to the drawings.
도2는 본 발명에 따른 전로 출강구를 나타내는 사시도이고, 도3은 본 발명에 따른 전로의 출강구내화물 보열버너를 나타내는 부분절개사시도이며, 도4는 본 발명에 따른 전로의 출강구내화물 보열버너의 작동상태를 나타내는 상태도이다.Figure 2 is a perspective view showing a converter outlet according to the present invention, Figure 3 is a partial cutaway perspective view showing the exit refractory thermal insulation burner of the converter according to the present invention, Figure 4 is a door refractory thermal insulation burner of the converter according to the present invention This is a state diagram showing the operating state of.
원통형의 금물커버(22)에는 그 외주면 좌우측에 손잡이(34)가 부착되어 있고, 그 후방측에 모터(30)의 동력축(35)과 결합되는 송풍기(27)가 내장되어 있으며, 그 후방측면에 송풍기(27)에 의해 송풍되는 공기를 제공하기 위하여 공기유입구(29)가 형성되어 있다.The cylindrical forbidden cover 22 has a handle 34 attached to the left and right sides of its outer circumferential surface, and a blower 27 coupled to the power shaft 35 of the motor 30 is built in the rear side thereof. An air inlet 29 is formed to provide air blown by the blower 27 in the air.
또한, 금물커버(22)에는 그 외주면 전단측에 수분방출구(24)가 원주방향으로 배열 형성되어 있고, 이 수분방출구(24)는 출강구철피(7)의 수분방출구(7-1)를 통해 방출되는 내화물(5)의 수분을 대기로 배출하게 된다.In addition, the water discharging openings 24 are arranged in the circumferential direction at the front end of the outer circumferential surface thereof, and the water discharging openings 24 are the water discharging openings 7-1 of the tap openings 7. The moisture of the refractory (5) discharged through) is discharged to the atmosphere.
이때, 금물커버(22)의 외주면 중단을 상하수직방향으로 관통되면서 밸브(20-1,21-1)에 의해 각각 개폐되는 도시가스라인(20)과 에어라인(21)은 금믈커버(22)에 내장되는 그 선단에 각각 분사노즐(26,25)이 설치되어 있다.At this time, the city gas line 20 and the air line 21 which are opened and closed by valves 20-1 and 21-1, respectively, penetrate the outer peripheral surface of the forbidden cover 22 in the vertical direction. The injection nozzles 26 and 25 are provided in the front-end | tip which are embedded in the inside.
여기서, 그 후방측이 개방되면서 그 전방측이 폐쇄되는 구조의 원통인 버너관(31)은 금물커버(22)의 개방된 전방측을 통해 금물커버의 중앙에 삽입되어 있고, 특히 그 외주면 후단측에 분사노즐(26,25)이 관통 내장되어 있다.Here, the burner tube 31, which is a cylinder having a structure in which the front side is closed while the rear side is opened, is inserted into the center of the forbidden cover through the open front side of the tab cover 22, and in particular, the rear end side of the outer peripheral surface thereof. The injection nozzles 26 and 25 are penetrated therein.
특히, 버너관(31)에 내장되는 분사노즐(26,25)은 도시가스나 에어를 전방측을 향해 분사하는 구조로 형성되어 있다.In particular, the injection nozzles 26 and 25 incorporated in the burner pipe 31 are formed in the structure which injects city gas or air toward the front side.
그리고, 버너관(31)에는 그 외주면 후단측에 밀착판(23)이 고정적으로 끼워지고, 이 밀착판(23)에는 버너관(31)이 슬리브연와(4)에 삽입되면서 출강구철피(7)가 금물커버(22)에 완전히 삽입될 때 출강구금물(4)이 밀착되도록 이루어져 있다.The burner tube 31 is fixedly fitted to the rear end of the outer circumferential surface thereof, and the burner tube 31 is inserted into the sleeve edge 4 by the burner tube 31. When the tab is completely inserted into the forbidden cover 22, the tap and stop 4 is made to be in close contact.
또한, 버너관(31)의 외주면에 형성되는 화염분사구(32)는 도시가스와 에어를 혼합한 혼합가스가 착화되면서 발생하는 화염을 슬라브연와(4)와 내화물(5)을 향해 사방으로 분사하게 된다.In addition, the flame spraying port 32 formed on the outer circumferential surface of the burner tube 31 allows the flame generated by the ignition of the mixed gas mixed with the city gas and air to be sprayed in all directions toward the slab edge 4 and the refractory 5. do.
한편, 출강구철피(7)에는 다수의 수분방출구(7-1)가 형성되어 있고, 화염분사구(32)로부터 분사되는 화염에 의해 슬라브연와(4)와 내화물(5)이 가열되면 그 자체에 내재되어 있던 수분이 축조된 내화벽돌 간의 틈을 통해 수분방출구(7-1)로 방출된다.On the other hand, the tapping steel bar (7) is formed with a plurality of water discharge holes (7-1), when the slab edge (4) and the refractory (5) is heated by the flame sprayed from the flame spraying hole (32) itself The moisture inherent in is discharged to the water discharge port 7-1 through the gap between the refractory bricks.
이하, 본 발명의 작용을 설명한다.The operation of the present invention will be described below.
손잡이(34)를 잡은 상태에서 버너관(31)을 전로출강구의 슬리브연와(4)에 삽입시키면서 금물커버(22)를 출강구금물(9)에 끼운다.While holding the handle 34, the burner tube 31 is inserted into the tapping hole 9 while the burner tube 31 is inserted into the sleeve edge 4 of the converter outlet.
이때, 출강구금물(9)의 전면이 밀착판(23)에 밀착되면서 금물커버(22)의 전단이 전로(1)의 외벽에 밀착되면 출강구전체가 금물커버(22)에 내장된 상태가 되고, 버너관(31)이 출강구주변의 내화물(5)에 내장되면서 고정된다.At this time, when the front surface of the tap and stop (9) is in close contact with the contact plate 23 and the front end of the tab of the forbidden cover 22 is in close contact with the outer wall of the converter (1) is a state in which the whole tap opening is embedded in the forbidden cover (22) The burner tube 31 is fixed while being embedded in the refractory 5 around the tap hole.
여기서, 밸브(20-1,21-1)를 개방하게 되면 도시가스라인(20)의 도시가스과 에어라인(21)의 에어가 분사노즐(26,25)을 통해 버너관(31)내로 분사되고, 동시에 모터(30)를 작동시켜 송풍기(27)로 가스와 에어를 버너관(31)내로 불어 넣어주게 된다.Here, when the valves 20-1 and 21-1 are opened, the city gas of the city gas line 20 and the air of the air line 21 are injected into the burner pipe 31 through the injection nozzles 26 and 25. At the same time, the motor 30 is operated to blow gas and air into the burner tube 31 through the blower 27.
그리고, 외부에서 버너관(31)내의 도시가스를 착화시키면 버너관내에서 화염이 발생되고, 버너관내의 화염은 화염분사구(32)를 통해 사방으로 분사되면서 내화물을 보열시키게 된다.When the city gas in the burner tube 31 is ignited from the outside, a flame is generated in the burner tube, and the flame in the burner tube is sprayed in all directions through the flame spray port 32 to keep the refractory.
이때, 화염분사구(32)를 통해 분사되는 화염에 의해 보열되는 내화물(5)은 자체의 수분이 증발되면서 수분방출구(7-1)를 통해 방출된 후, 금물커버(22)의 수분방출구(24)를 통해 대기로 방출된다.At this time, the refractory material 5 which is maintained by the flame sprayed through the flame spray port 32 is discharged through the water discharge port 7-1 while the moisture of the self is evaporated, and then the water discharge port of the gold cover 22. It is released to the atmosphere through (24).
본 발명은 전로출강구 주변의 내화물만을 별도 가열시킴으로써 축조초기 수분에 의한 부실함을 방지하는 동시에 전로내의 내화물수명을 연장시키고, 용융물에 의한 화학적 침식을 예방할 수 있는 효과를 제공하게 된다.The present invention provides an effect of preventing retardation due to moisture at the beginning of the construction by separately heating only the refractory around the converter exit hole, and extending the refractory life of the converter and preventing chemical erosion by the melt.
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KR10-1998-0055512A KR100380135B1 (en) | 1998-12-16 | 1998-12-16 | Refractory Thermal Burner |
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KR10-1998-0055512A KR100380135B1 (en) | 1998-12-16 | 1998-12-16 | Refractory Thermal Burner |
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KR100380135B1 true KR100380135B1 (en) | 2003-08-21 |
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KR10-1998-0055512A KR100380135B1 (en) | 1998-12-16 | 1998-12-16 | Refractory Thermal Burner |
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CN109487032A (en) * | 2018-12-18 | 2019-03-19 | 鞍钢股份有限公司 | Pre-sintering structure and method for outer hole of steel tapping hole |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827919A (en) * | 1981-08-05 | 1983-02-18 | メツサ−・グリ−スハイム・ゲゼルシヤフト・ミツト・ベシユレンクタ−・ハフツンク | Empty aod converter preheating and heating method |
JPS62267407A (en) * | 1986-05-15 | 1987-11-20 | Kobe Steel Ltd | Method and apparatus for blowing solid fuel to electric furnace and converter |
JPH01119614A (en) * | 1987-10-30 | 1989-05-11 | Kawasaki Refract Co Ltd | Device for repairing steel tapping hole in converter |
-
1998
- 1998-12-16 KR KR10-1998-0055512A patent/KR100380135B1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5827919A (en) * | 1981-08-05 | 1983-02-18 | メツサ−・グリ−スハイム・ゲゼルシヤフト・ミツト・ベシユレンクタ−・ハフツンク | Empty aod converter preheating and heating method |
JPS62267407A (en) * | 1986-05-15 | 1987-11-20 | Kobe Steel Ltd | Method and apparatus for blowing solid fuel to electric furnace and converter |
JPH01119614A (en) * | 1987-10-30 | 1989-05-11 | Kawasaki Refract Co Ltd | Device for repairing steel tapping hole in converter |
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KR20000039993A (en) | 2000-07-05 |
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