KR940007148Y1 - Lance - Google Patents

Lance Download PDF

Info

Publication number
KR940007148Y1
KR940007148Y1 KR92023086U KR920023086U KR940007148Y1 KR 940007148 Y1 KR940007148 Y1 KR 940007148Y1 KR 92023086 U KR92023086 U KR 92023086U KR 920023086 U KR920023086 U KR 920023086U KR 940007148 Y1 KR940007148 Y1 KR 940007148Y1
Authority
KR
South Korea
Prior art keywords
refractory layer
wire net
refractory
lance
layer
Prior art date
Application number
KR92023086U
Other languages
Korean (ko)
Other versions
KR940012635U (en
Inventor
박윤희
Original Assignee
박득표
포항종합제철 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박득표, 포항종합제철 주식회사 filed Critical 박득표
Priority to KR92023086U priority Critical patent/KR940007148Y1/en
Publication of KR940012635U publication Critical patent/KR940012635U/en
Application granted granted Critical
Publication of KR940007148Y1 publication Critical patent/KR940007148Y1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/06Constructional features of mixers for pig-iron
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/16Introducing a fluid jet or current into the charge
    • F27D2003/168Introducing a fluid jet or current into the charge through a lance
    • F27D2003/169Construction of the lance, e.g. lances for injecting particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

내용 없음.No content.

Description

이중 경사랜스Double Slope Lance

제1도는 본 고안에 따른 이중경사랜스의 측단면도.1 is a side cross-sectional view of a double inclined lance according to the present invention.

제2도는 제1도의 "A"부분 상세도.2 is a detail view of the portion "A" of FIG.

제3도는 종래기술에 따른 이중 경사랜스의 측단면도.3 is a side cross-sectional view of a double inclined lance according to the prior art.

제4도는 제3도의 "B"부분 상세도.4 is a detail view of portion "B" of FIG.

제5도는 일반적인 용선예비처리 작업도이다.5 is a general charter charting operation chart.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 제2와이어네트 20 : 제3와이어네트10: second wire net 20: third wire net

25 : 철제고리 130 : 파이프부재25: iron ring 130: pipe member

132 : 제1와이어네트 134 : 제1내화물층132: first wire net 134: first refractory layer

136 : 제2내화물층 138 : 곡관부136: second refractory layer 138: curved portion

140 : 제3내화물층140: third refractory layer

본 고안은 용선예비처리작업에 사용되는 이중 경사랜스에 관한 것으로, 보다 상세히는 고열로 인한 팽창과 대기중의 수축으로 균열된 내화물이 슬래그와 충돌시 대량 탈락되어 파손되는 것을 방지함으로서 수명을 연장시키고, 작업자의 부하를 경감시킬 수 있도록 한 이중경사랜스에 관한 것이다.The present invention relates to a double inclined lance used in the charter preliminary treatment operation, more specifically, to prolong the life by preventing the refractory cracked due to the expansion due to high heat and contraction in the air to be broken off by a large drop in collision with the slag In particular, the present invention relates to a double slope lance that can reduce a worker's load.

용선예비처리작업에는 이중경사랜스(100)가 사용된다. 종래의 이중경사랜스(100)는 제5도에 도시된 바와같이, 토페도래들카(Topedo Ladle Car)(110)에 담겨진 용선(120)으로 부원료를 투입하도록 사용된다. 상기 이중경사랜스(100)는 일정길이의 파이프부재(130) 외측면에 와이어네트(wire net)(132)를 부착시키고, 상기 와이어네트(132) 외측면에는 24시간 이상 숙성된 내화물을 6-7kg/㎠의 압력으로 부착시켜 제1내화물층(134)을 형성시킨다. 이와같이 제1내화물층(134)이 완료되면, 24시간 이상 자연 건조후 그 상부에 동일 방법으로 제2내화물층(136)을 형성시키며, 다시 24시간 이상 자연건조후 곡관부(138)에 다시 제3내화물층(140)을 형성시킨 다음 건조로(미도시)에서 200℃의 온도로 81시간 이상 건조하여 사용하게 된다. 그러나 상기와 같은 종래의 이중경사랜스(100)는 6-7kg의 압력으로 제1 및 제2 내화물층(134)(136)을 형성시키기 때문에, 면이 거칠고 기공이 발생하며, 내화물의 응집성이 현저히 떨어지기 때문에, 고열의 용선(12O) 내에 상기 이중경사랜스(100)를 침적하는 경우, 제1 및 제2내화물층(134)(136)은 적열되지만, 파이프부재(130)는 그 내부로 부원료가 투입되기 때문에 적용되지 않고, 부원료 취입완료후 대기중으로 상승되면 적열된 내화물층으로 인하여 파이프부재(130)가 열팽창되어 제1 및 제2내화물층(134) (136)을 균열시키게 된다. 이와같은 이중경사랜스(100)를 반복하여 사용하게 되면, 이러한 균열부위로 용선이 침투되고, 제I 및 제2 내화물층(134)(136)이 용선(120)과 슬래그층에 부딪혀서 충격이 가해지게 되어 쉽게 탈락되는 것이었다.The dual warp lance 100 is used for the charter preliminary processing. The conventional double slope lance 100 is used to inject the subsidiary materials into the molten iron 120 contained in the Topedo Ladle Car 110, as shown in FIG. The double inclined lance 100 is attached to a wire net (132) on the outer surface of the pipe member 130 of a predetermined length, and the refractory matured for more than 24 hours on the outer surface of the wire net (132) 6- The first refractory layer 134 is formed by attaching at a pressure of 7 kg / cm 2. As such, when the first refractory layer 134 is completed, the second refractory layer 136 is formed on the upper part after natural drying for 24 hours or more in the same manner, and again the curvature 138 after natural drying for 24 hours or more. After forming the refractory layer 140, and dried at a temperature of 200 ℃ in a drying furnace (not shown) for 81 hours or more to use. However, since the conventional double warp lance 100 forms the first and second refractory layers 134 and 136 at a pressure of 6-7 kg, the surface is rough and pores are generated, and the refractory cohesion is remarkably. When the double inclined lance 100 is deposited in the hot molten iron 120, the first and second refractory layers 134 and 136 are glowing, but the pipe member 130 is an auxiliary material therein. Is not applied because it is added, and when the subsidiary material is blown up, the pipe member 130 is thermally expanded due to the glowing refractory layer to crack the first and second refractory layers 134 and 136. When the double inclined lance 100 is used repeatedly, the molten iron penetrates into the cracked portion, and the first and second refractory layers 134 and 136 collide with the molten iron 120 and the slag layer, thereby applying an impact. It was easy to lose.

따라서. 파이프부재(130)는 용선(120)과 직접 접촉하여 소손됨으로써 파공부위가 발생하여 이를 재교환하는 것이 었다.therefore. The pipe member 130 was burned in direct contact with the molten iron 120 to generate a pore site and to replace it again.

또한, 곡관부(138)에는 와이어네트(132)가 설치되지 않은 상태이기 때문에 더욱더 제3 내화물층(140)은 쉽게 파손되는 것이고, 와이어네트(132)를 파이프부재(130)에 고정하기 위해서는 페이퍼테이프(paper tape)(142)를 사용하였다. 따라서, 이중경사랜스(100)의 수명이 단축되고, 파손된 이중경사랜스(100)의 잦은 교환으로 인하여 작업자의 부하는 증가되어 작업생산성이 현저히 저하되는 것이었다.In addition, since the wire net 132 is not installed in the curved pipe part 138, the third refractory layer 140 is more easily broken, and in order to fix the wire net 132 to the pipe member 130, Paper tape 142 was used. Therefore, the life of the double inclined lance 100 is shortened, and the load of the worker is increased due to frequent replacement of the broken double inclined lance 100, thereby significantly reducing work productivity.

본 고안은 상기와 같은 종래의 제반문제점을 해소하기 위하여 안출된 것으로서, 고열로 인한 팽창과 수축작용으로 균열된 내화물이 스래그와의 충돌시 대량 탈락되는 것을 방지하여 수명을 연장시켜 작업생산성을 크게 향상시키도록 한 이중경사랜스를 제공함에 그 목적이 있다.The present invention was devised to solve the conventional problems as described above, and prevents the refractory cracked due to the expansion and contraction action due to high heat to prevent large dropouts when colliding with slag, thereby prolonging the lifespan and greatly increasing work productivity. The purpose is to provide a double slope lance to improve.

상기 목적을 달성하기 위하여 본 고안은, 파이프부재의 외측면에 제1와이어네트를 부착시키고, 상기 와이어네트 외측면에는 제1내화물층을 형성시키며, 상기 제1내화물층의 외측면에 제2내화물층을 형성하는 한편, 곡관부에 제3내화물층을 형성한 이중 경사랜스에 있어서, 상기 재1내화물층과 제2내화물층 사이에 제2와이어네트를 형성시킨 구조의 이중경사랜스를 마련함에 의한다.In order to achieve the above object, the present invention attaches a first wire net to an outer surface of a pipe member, forms a first refractory layer on an outer surface of the wire net, and a second refractory on an outer surface of the first refractory layer. In the double warp lance in which a third refractory layer is formed on the curved pipe portion while forming a layer, a double warp lance having a structure in which a second wire net is formed between the first refractory layer and the second refractory layer is formed. All.

이하, 본 고안을 도면에 따라 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the drawings.

본 고안에 따른 이중경사랜스(10)는 제1도 및 제2도에 도시된 바와같이 제1내화물층(134)과 제2내화물층(136) 사이에 제2와이어네트(10)가 부착되고, 상기 제2와이어네트(10)는 제1내화물층(134)을 원주방향으로 가압하면서 감싸도록 되며 제2내화물층(136)을 그 외표면에 견고하게 부착되도록 되며, 곡관부(138)의 외측면 과제3내화물층(140) 사이에는 제3와이어네트(20)가 형성된다.The double slope lance 10 according to the present invention has a second wire net 10 attached between the first refractory layer 134 and the second refractory layer 136 as shown in FIGS. 1 and 2. The second wire net 10 is wrapped while pressing the first refractory layer 134 in the circumferential direction, and is firmly attached to the outer surface of the second refractory layer 136. The third wire net 20 is formed between the outer side object task 3 refractory layer 140.

그리고, 상기 제1와이어네트(132)와 제3와이어네트(20)는 각각 철제고리(25)를 통해서 파이프부재(130)에 장착되며, 상기 제1,2 및 3내화물층(134)(136)(140)은 각각 8-9kg/㎤의 압력으로 승압되어 파이프부재(130)에 부착된다. 상기와 같이 높은 압력으로 제1,2 및 3내화물층(135)(136)이 형성되면, 내화물층내에 기공이 최소화되고, 내응집성이 향상되는 것이다.In addition, the first wire net 132 and the third wire net 20 are mounted to the pipe member 130 through the iron ring 25, respectively, the first, second and third refractory layers 134, 136 140 are respectively boosted to a pressure of 8-9kg / ㎠ and attached to the pipe member (130). When the first, second and third refractory layers 135 and 136 are formed at a high pressure as described above, pores are minimized in the refractory layer and coagulation resistance is improved.

상기와 같이 구성된 본 고안은 제1내화물층(134)과 제2내화물층(136) 사이에 형성된 제2와이어네트(10)는제1내화물층(134) 외주면을 연하여 감싸 지지하기 때문에 제1내화물층(134)이 균열되더라도 파이프부재(130)로부터 탈락되는 것이 방지된다.According to the present invention configured as described above, since the second wire net 10 formed between the first refractory layer 134 and the second refractory layer 136 is softly wrapped around the outer circumferential surface of the first refractory layer 134, the first refractory material Even if the layer 134 is cracked, it is prevented from falling off the pipe member 130.

또한, 제2내화물층(136)도 제2와이어네트(10)에 의해서 제1내화물층(134)에 보다견고히 지지되기 때문에 용선(120)이나 슬래그층에 의해서 충격이 가해져도 쉽게 제1내화물층(134)으로부터 탈락되지도 않는다. 그리고, 상기 제2와이너네트(20)는 파이프부재(130)에 제3내화물층(140)을 보다 견고히 부착시키기 때문에 제3내화물층(140)도 쉽게 탈착되지 않음으로서 파이프부재(130)의 소손이 방지되고 결과적으로는 수명이 매우 길어지게 된다. 또한, 제1와이어네트(132)와 제2와이어네트(10)도 철제고리(25)를 통해 파이프부재(130)에 장착되기 때문에 보다 견고히 제1내화물층(134)과 제3내화물층(140)을 고정시킬 수도 있는 것이다.In addition, since the second refractory layer 136 is more firmly supported on the first refractory layer 134 by the second wire net 10, the first refractory layer is easily applied even when an impact is applied by the molten iron 120 or the slag layer. It is not eliminated from (134). In addition, since the second wine net 20 more firmly attaches the third refractory layer 140 to the pipe member 130, the third refractory layer 140 is also not easily detached, thereby causing damage to the pipe member 130. This is avoided and consequently the life is very long. In addition, since the first wire net 132 and the second wire net 10 are also mounted to the pipe member 130 through the iron ring 25, the first refractory layer 134 and the third refractory layer 140 more firmly. ) Can be fixed.

상기에서와 같이 본 고안에 의하면, 제2와이어네트(10)가 제1내화물층(134)을 감싸 지지하면서 제2내화물층(136)을 견고히 부착시키기 때문에 파아프부재(130)의 소손이 방지되어 수명이 연장되고, 제3와이어네트(20)가 제3내화물총(140)을 견고히 고정시키기 때문에 수명이 크게 연장되어 평균수명이 2.5회/1본에서 6회/1본으로 항상된다. 또한, 상기와 같이 교환주기가 늘어남에 따라서 작업부하도 경감되어 생산성을 향상시킬 수 있는 실용상의 효과도 얻게 되는 것이다.As described above, according to the present invention, the second wire net 10 is firmly attached to the second refractory layer 136 while supporting the first refractory layer 134, thereby preventing damage to the puff member 130. The service life is extended, and since the third wire net 20 firmly fixes the third refractory gun 140, the service life is greatly extended so that the average life is always 2.5 times / 1 book to 6 times / 1 book. In addition, as the replacement cycle is increased as described above, the workload is also reduced, and the practical effect of improving productivity is also obtained.

Claims (1)

용선예비처리설비에서 토페도래들카(Topedo Ladle Car)(110)내의 용선(120) 속으로 부원료를 투입하는데 사용되고, 파이프부재(13)를 갖추며, 상기 파이프부내(130) 의 외측면에 제1와이어네트(132)를 부착시키고, 상기 제1와이어네트(132) 외측면에는 제1내화물층(134)을 형성시키며, 상기 제1내화물층(134)의 외측면에 제2내화물층(136)을 형성시키는 한편, 곡관부(138)에 제3내화물층(140)을 형성한 이중 경사랜스에 있어서, 상기제1내화물층(134)과 제2내화물층(136) 사이에는 내표면에 제1내화물층(134)을 원주방향으로 감싸 지지하면서 외표면에 제2내화물층(136)을 견고히 부착시키는 제2와이어네트(10)가 형성됨을 특징으로 하는 이중경사랜스.It is used to inject the sub-material into the molten iron 120 in the Topedo Ladle Car 110 in the molten iron preliminary treatment facility, equipped with a pipe member 13, the first side on the outer surface of the inside of the pipe portion 130 Attaching a wire net 132, the first refractory layer 134 is formed on the outer surface of the first wire net 132, the second refractory layer 136 on the outer surface of the first refractory layer 134 On the other hand, in the double inclined lance in which the third refractory layer 140 is formed in the curved portion 138, a first surface is formed between the first refractory layer 134 and the second refractory layer 136 on the inner surface. A double warp lance, wherein the second wire net 10 is formed to firmly attach the second refractory layer 136 to the outer surface while supporting the refractory layer 134 in the circumferential direction.
KR92023086U 1992-11-23 1992-11-23 Lance KR940007148Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92023086U KR940007148Y1 (en) 1992-11-23 1992-11-23 Lance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92023086U KR940007148Y1 (en) 1992-11-23 1992-11-23 Lance

Publications (2)

Publication Number Publication Date
KR940012635U KR940012635U (en) 1994-06-22
KR940007148Y1 true KR940007148Y1 (en) 1994-10-14

Family

ID=19344538

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92023086U KR940007148Y1 (en) 1992-11-23 1992-11-23 Lance

Country Status (1)

Country Link
KR (1) KR940007148Y1 (en)

Also Published As

Publication number Publication date
KR940012635U (en) 1994-06-22

Similar Documents

Publication Publication Date Title
NO924189L (en) COATED ABRASIVE ALUMINUM PARTICLES, THEIR PREPARATION AND USE
KR940007148Y1 (en) Lance
WO2001000539A3 (en) Ceramic material, production, usage and a layer of the same
SE8604265D0 (en) CERAMIC
CA2242243A1 (en) Nozzle for use in continuous casting of steel
ES2273979T3 (en) ROLLER INTENDED FOR THE TRANSPORTATION OF A METAL BAND IN A CONTINUOUS RECOGNITION INSTALLATION.
CA2310431A1 (en) Refractory batch, in particular for the production of a shaped body, and process for producing the shaped body
JPH079964U (en) Blast furnace tuyere with high temperature thermal shock resistance
KR950018512A (en) Manufacturing method of steel ladle slag
JPS6313240Y2 (en)
JPH06241667A (en) Furnace cover material
JPS6129702Y2 (en)
CN2184909Y (en) Industrial electricity resistance furnace
JPS6123711A (en) Skid button for heating furnace
JPS63176356A (en) Refractories for ladle and ladle
JP3849888B2 (en) Converter outlet steel sleeve
JPS5823468Y2 (en) Pad for casting
US1932457A (en) Digester
JP3023912B2 (en) Tuyere for blast furnace
JP3276054B2 (en) Precast block for electric furnace ceiling
JPH0243037Y2 (en)
H-X FUNCTIONAL REFRACTORIES FOR STEELMAKING- THE POROUS PLUGS
JPS5835640Y2 (en) Steel reheating furnace skid button
GmbH ENERGY SAVINGS AND QUALITY IMPROVEMENTS BY THE USE OF'RECRYSTALLIZED' SILICON CARBIDE AS KILN FURNITURE
Vidin et al. Thermal Conditions of Operation of an Aluminum Holding Furnace

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20021002

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee