KR100527234B1 - Apparatus for preheating of nozzle - Google Patents

Apparatus for preheating of nozzle Download PDF

Info

Publication number
KR100527234B1
KR100527234B1 KR10-2003-0078256A KR20030078256A KR100527234B1 KR 100527234 B1 KR100527234 B1 KR 100527234B1 KR 20030078256 A KR20030078256 A KR 20030078256A KR 100527234 B1 KR100527234 B1 KR 100527234B1
Authority
KR
South Korea
Prior art keywords
preheating
case
nozzle
heat
immersion nozzle
Prior art date
Application number
KR10-2003-0078256A
Other languages
Korean (ko)
Other versions
KR20050043369A (en
Inventor
김병일
Original Assignee
아이앤아이스틸 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 아이앤아이스틸 주식회사 filed Critical 아이앤아이스틸 주식회사
Priority to KR10-2003-0078256A priority Critical patent/KR100527234B1/en
Publication of KR20050043369A publication Critical patent/KR20050043369A/en
Application granted granted Critical
Publication of KR100527234B1 publication Critical patent/KR100527234B1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50Pouring-nozzles
    • B22D41/60Pouring-nozzles with heating or cooling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

본 발명은 침적노즐의 예열작업시 예열작업의 에너지 소모 및 내화재의 소모를 절감할 수 있도록 그 구조가 개선된 침적노즐의 예열장치에 관한 것으로, 그 구성은 내화재인 세라크울로 형성되고 중앙에 침적노즐이 삽입되도록 중공이 형성되는 원통형의 케이스와, 그 케이스의 하부에 장착되며 공기와 가스를 연료로 하여 점화열로 침적노즐을 예열하는 예열버너와, 그 케이스의 외주면에 접촉되도록 밀착 결합되는 열 전도재질의 프레임으로 구성된 것이다.The present invention relates to a preheating apparatus of the immersion nozzle, the structure of which is improved to reduce the energy consumption of the preheating operation and the consumption of the refractory material during the preheating operation of the immersion nozzle, the configuration of which is formed of cerrac wool, which is a refractory material, in the center A cylindrical case in which a hollow is formed to insert the deposition nozzle, a preheat burner mounted on the lower part of the case and preheating the deposition nozzle with ignition heat using air and gas as fuel, and closely contacted to be in contact with the outer circumferential surface of the case. It consists of a frame of heat conducting material.

이에 따르면 본 발명은 침적노즐의 예열시 내화재로 된 케이스의 상,하부에 골고루 버너의 열이 전달되므로, 열에너지의 전달효율이 향상되고 예열시간을 단축할 수 있는 등의 효과를 갖는다.According to the present invention, since the heat of the burner is evenly transmitted to the upper and lower parts of the case made of the refractory material during the preheating of the immersion nozzle, the heat transfer efficiency is improved and the preheating time can be shortened.

Description

침적노즐의 예열장치{APPARATUS FOR PREHEATING OF NOZZLE}Preheating device for immersion nozzle {APPARATUS FOR PREHEATING OF NOZZLE}

본 발명은 침적노즐의 예열장치에 관한 것으로, 특히 턴디쉬 하부에 위치한 침적노즐을 용탕의 초기 배출 전에 미리 예열하는 예열장치를 개량하여 열에너지 및 내화재의 소모를 절감할 수 있도록 한 침적노즐의 예열장치에 관한 것이다.The present invention relates to a preheating apparatus for the immersion nozzle, and in particular, to improve the preheating apparatus for preheating the immersion nozzle located in the lower portion of the tundish in advance before the initial discharging of the melt, to reduce the consumption of thermal energy and refractory materials. It is about.

일반적으로, 연속주조설비는 도 1에 도시된 바와 같이, 용탕이 채워진 래들(110)로부터 롱노즐(110)을 통하여 하부에 마련된 턴디쉬(115)로 용탕이 공급되고, 그 턴디쉬(115)의 하부에 장착된 복수개의 침적노즐(120a,120b)을 통하여 연속 주조몰드(125) 내로 용탕이 공급되는 구조로 되어 있다.In general, as shown in FIG. 1, the continuous casting facility is supplied with molten metal from the ladle 110 filled with the molten metal to the tundish 115 provided below through the long nozzle 110, and the tundish 115. The molten metal is supplied into the continuous casting mold 125 through a plurality of immersion nozzles 120a and 120b mounted at the bottom of the.

그 연속 주조설비에서 턴디쉬(115)의 하부에 위치한 침적노즐(120a,120b)은 주조작업 초기에 공급된 용탕이 냉각되어 응고되는 것을 방지하기 위해서 대략 1000~1200℃정도로 예열시키는 작업이 요구된다.In the continuous casting facility, the immersion nozzles 120a and 120b located below the tundish 115 need to be preheated to about 1000 to 1200 ° C. to prevent the molten metal from being cooled and solidified at the beginning of the casting operation. .

종래 침적노즐의 예열장치는 도 2에 도시된 바와 같이 침적노즐(120a,120b)의 외경부를 감싸도록 내화재인 세라크울로 형성된 원통형 케이스(152)와, 그 원통형 케이스(152)의 하부에 공기와 가스를 연료로 하는 예열버너(160)가 장착된다.As shown in FIG. 2, the preheating apparatus of the conventional immersion nozzle includes a cylindrical case 152 formed of cerakwool, which is a fireproof material, so as to surround the outer diameter portions of the immersion nozzles 120a and 120b, and air at the bottom of the cylindrical case 152. And a preheat burner 160 using gas as fuel.

그 침적노즐(120a,120b)의 예열작업은 그 원통형의 케이스(152)의 내주면에 침적노즐(120a,120b)을 끼운 후에 침적노즐(120a,120b)의 일측 노즐공(122)을 내화재로 밀봉시킨 다음에, 예열버너(160)를 침적노즐(120a,120b)의 타측 노즐공(122)에 삽입시켜 침적노즐(120a,120b)의 내부를 가열시키는 것이다.The preheating operation of the immersion nozzles 120a and 120b inserts the immersion nozzles 120a and 120b into the inner circumferential surface of the cylindrical case 152 and seals the nozzle hole 122 of one side of the immersion nozzles 120a and 120b with fireproof material. Then, the preheat burner 160 is inserted into the other nozzle hole 122 of the immersion nozzles 120a and 120b to heat the interior of the immersion nozzles 120a and 120b.

그러한 종래 침적노즐의 예열작업시 예열버너의 화염이 침적노즐의 내벽 일정부위에만 집중적으로 분사되므로 그 침적노즐의 부위가 고온으로 열화되어 산화될뿐만 아니라, 침적노즐을 전체적으로 예열하기 위해 연료의 소모가 많아지게 되는 문제점이 있었다.During the preheating of the conventional immersion nozzle, the flame of the preheat burner is intensively sprayed only at a certain portion of the inner wall of the immersion nozzle, so that the portion of the immersion nozzle is deteriorated to a high temperature and oxidized, and consumption of fuel is required to preheat the immersion nozzle as a whole. There were many problems.

한편, 침적노즐의 내부로 예열버너를 삽입하지 않고 케이스 내부를 가열하여 침적노즐을 전반적으로 예열하는 방식도 있었다. On the other hand, there was also a method of preheating the deposition nozzle as a whole by heating the inside of the case without inserting the preheat burner into the deposition nozzle.

종래 침적노즐의 노즐공으로 버너를 삽입시키지 않는 방식은 침적노즐의 예열작업시에 그 내화재로 된 원통형 케이스 내부의 가열을 위해 내화재인 세라크울의 소모가 많아지게 되는 단점이 있었다.The conventional method of not inserting the burner into the nozzle hole of the immersion nozzle has the disadvantage of increasing the consumption of cerakwool, a refractory material, for heating inside the cylindrical case of the refractory material during preheating of the immersion nozzle.

본 발명은 상기한 제반문제점을 감안하여 이를 해결하고자 안출된 것으로, 그 목적은 침적노즐의 예열작업시 열에너지 및 내화재의 소모를 절감할 수 있도록 개선된 침적노즐의 예열장치를 제공하는 데 있다.The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a preheating apparatus of an improved immersion nozzle to reduce the consumption of thermal energy and refractory materials during preheating of the immersion nozzle.

상기한 목적을 달성하기 위한 본 발명은 내화재로 구성되며 내부에 침적노즐이 삽입되도록 중공이 형성되는 원통형의 케이스와, 상기 케이스의 하부에 장착되며 점화열로 상기 침적노즐을 예열시키는 예열버너와, 상기 케이스의 외주면에 일체로 결합되는 열전도 재질의 프레임을 구비하여 된 것을 특징으로 한다.The present invention for achieving the above object is composed of a refractory material and the cylindrical case is hollow is formed so that the immersion nozzle is inserted therein, a preheat burner mounted on the lower portion of the case and preheating the immersion nozzle with ignition heat; It is characterized in that it is provided with a frame made of a thermally conductive material integrally coupled to the outer peripheral surface of the case.

본 발명의 다른 특징은 상기 프레임이 상기 케이스의 외주면을 감싸도록 결합되며, 상기 케이스의 일정부위가 외측으로 노출되도록 다수개의 통공이 형성된 것이다.Another feature of the present invention is that the frame is coupled to surround the outer circumferential surface of the case, a plurality of through-holes are formed so that a predetermined portion of the case is exposed to the outside.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 침적노즐의 예열장치는, 도 3 및 도 4를 참조, 내화재인 세라크울로 형성되고 중앙에 침적노즐(120a,120b)이 삽입되도록 중공(152a)이 형성되는 원통형의 케이스(152)와, 그 케이스(152)의 하부에 장착되며 공기와 가스를 연료로 이용하여 점화열로 침적노즐(120a,120b)을 예열하는 예열버너(160)와, 그 케이스(152)의 외주면에 접촉되도록 밀착 결합되는 열 전도재질의 프레임(155)으로 구성된다.The preheating apparatus of the immersion nozzle according to the present invention is a cylindrical case (see Figs. 3 and 4), which is formed of cerrac wool as a fireproof material and a hollow 152a is formed to insert the immersion nozzles 120a and 120b in the center thereof. 152, a preheat burner 160 mounted on the lower part of the case 152 and preheating the deposition nozzles 120a and 120b with ignition heat using air and gas as fuel, and an outer peripheral surface of the case 152. It is composed of a frame 155 of the heat conducting material is tightly coupled to contact.

더 상세히 설명하면, 그 프레임(155)은 예열버너(160)의 열을 케이스(152)와 접촉된 외주연 부위에 전도시키기 위하여 케이스(152)의 외주면을 감싸며 다수개의 통공(155a)이 형성된 구조를 갖는다.In more detail, the frame 155 has a structure in which a plurality of through holes 155a are formed to surround the outer circumferential surface of the case 152 so as to conduct heat of the preheat burner 160 to the outer circumferential portion in contact with the case 152. Has

바람직하게는 프레임(155)은 케이스(152)의 외주면에 일정 간격으로 접촉되도록 밀착 결합되는 스틸재를 채용하되, 그 형상이 케이스(152)에 전체적으로 열이 골고루 전달되도록 다수개의 통공(155a)이 천공된 테두리가 접촉되는 구조를 갖는다.Preferably, the frame 155 employs a steel material that is tightly coupled to contact the outer circumferential surface of the case 152 at a predetermined interval, but a plurality of through holes 155a are formed so that heat is evenly transmitted to the case 152 as a whole. It has a structure in which the perforated edge is in contact.

그리고, 케이스(152)는 원통형의 세라크울로 이루어진 것으로, 원통형의 일부위에 개구되어 외부의 공기가 내부로 유입되도록 개구부(152b)가 형성되어 있다.In addition, the case 152 is formed of a cylindrical cerak wool, and an opening 152b is formed to be opened on a portion of the cylinder so that external air flows into the inside.

또한, 예열버너(160)는 케이스(152)의 하부에 장착되어 케이스(152)의 중공(152a)에 삽입된 침적노즐(120a,120b)을 예열시키는 기능을 갖는다.In addition, the preheat burner 160 has a function of preheating the deposition nozzles 120a and 120b which are mounted on the lower part of the case 152 and inserted into the hollow 152a of the case 152.

이러한 구조를 갖는 본 발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention having such a structure is as follows.

먼저, 침적노즐(120a,120b)을 케이스(152)의 중공(152a)을 통해 케이스(152)의 내주면으로 삽입시킨 후에, 예열버너(160)를 점화시켜 침적노즐(120a,120b)을 예열시킨다.First, the immersion nozzles 120a and 120b are inserted into the inner circumferential surface of the case 152 through the hollow 152a of the case 152, and then the preheat burner 160 is ignited to preheat the immersion nozzles 120a and 120b. .

이때, 예열버너(160)는 공기와 가스(L.N.G 또는 L.P.G)를 연료로 하여 점화되어 침적노즐(120a,120b)을 예열시키는 과정에서 케이스(152)내의 열이 일정부위에만 집중되는 것이 아니라, 외측의 프레임(155)에 의해 열이 전도되어 케이스(152)의 외주면 전체에 열이 골고루 전달된다.At this time, the preheat burner 160 is ignited by using air and gas (LNG or LPG) as fuel, and in the process of preheating the deposition nozzles 120a and 120b, the heat in the case 152 is not concentrated only at a predetermined portion. The heat is conducted by the frame 155 of the heat is evenly transferred to the entire outer peripheral surface of the case 152.

또한, 침적노즐(120a,120b)은 하측의 버너(160)로부터 전달되는 열과 케이스(152)로부터 전달되는 열에 의해 상,하부가 예열되므로, 예열시간이 단축된다.In addition, the immersion nozzles 120a and 120b are preheated by the heat transferred from the burner 160 on the lower side and the heat transferred from the case 152, so that the preheating time is shortened.

이상과 같이 설명한 본 발명은 침적노즐의 예열작업시 예열작업의 에너지 소모 및 내화재의 소모를 절감할 수 있도록 그 구조가 개선된 것인 바, 이에 따르면 본 발명은 침적노즐의 예열시 내화재로 된 케이스의 상,하부에 골고루 버너의 열이 전달되므로, 열에너지의 전달효율이 향상되고 예열시간을 단축할 수 있는 등의 효과를 갖는다.The present invention as described above is improved in the structure to reduce the energy consumption of the preheating operation and the consumption of the refractory material during the preheating operation of the immersion nozzle, according to the present invention is a case made of fireproof material during the preheating of the immersion nozzle Since the heat of the burner is evenly transferred to the upper and lower parts of the burner, the heat energy transfer efficiency is improved and the preheating time can be shortened.

도 1은 일반적인 연속 주조설비의 구성을 개략적으로 나타낸 구성도.1 is a schematic view showing the configuration of a typical continuous casting facility.

도 2는 종래 침적노즐의 예열장치를 나타낸 단면도.2 is a cross-sectional view showing a preheating apparatus of a conventional immersion nozzle.

도 3은 본 발명에 따른 침적노즐의 예열장치를 나타낸 사시도.Figure 3 is a perspective view showing a preheating device of the deposition nozzle according to the present invention.

도 4는 본 발명의 사용상태도.Figure 4 is a state of use of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on main parts of drawing

120a,120b : 침적노즐120a, 120b: immersion nozzle

152 : 케이스 152a : 중공152: case 152a: hollow

152b : 개구부 155 : 프레임152b: Opening 155: Frame

155a : 통공 160 : 예열버너155a: through hole 160: preheat burner

Claims (2)

내화재로 구성되며 내부에 침적노즐(120a,120b)이 삽입되도록 중공(152a)이 형성되는 원통형의 케이스(152)와,A cylindrical case 152 formed of a fireproof material and having a hollow 152a formed therein so that the immersion nozzles 120a and 120b are inserted therein; 상기 케이스(152)의 하부에 장착되며 점화열로 상기 침적노즐(120a,120b)을 예열시키는 예열버너(160)와,A preheat burner 160 mounted below the case 152 and preheating the deposition nozzles 120a and 120b with ignition heat; 상기 케이스(152)의 외주면에 일체로 결합되는 열전도 재질의 프레임(155)을 구비하되,Is provided with a frame 155 of the thermal conductive material integrally coupled to the outer peripheral surface of the case 152, 상기 프레임(155)은 상기 케이스(152)의 외주면을 감싸도록 결합되며, 상기 케이스(152)의 일정부위가 외측으로 노출되도록 다수개의 통공(155a)이 형성된 것을 특징으로 하는 침적노즐의 예열장치.The frame 155 is coupled to surround the outer circumferential surface of the case 152, and a plurality of through-holes (155a) is formed so that a predetermined portion of the case 152 is exposed to the outside. 삭제delete
KR10-2003-0078256A 2003-11-06 2003-11-06 Apparatus for preheating of nozzle KR100527234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR10-2003-0078256A KR100527234B1 (en) 2003-11-06 2003-11-06 Apparatus for preheating of nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0078256A KR100527234B1 (en) 2003-11-06 2003-11-06 Apparatus for preheating of nozzle

Publications (2)

Publication Number Publication Date
KR20050043369A KR20050043369A (en) 2005-05-11
KR100527234B1 true KR100527234B1 (en) 2005-11-08

Family

ID=37244115

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2003-0078256A KR100527234B1 (en) 2003-11-06 2003-11-06 Apparatus for preheating of nozzle

Country Status (1)

Country Link
KR (1) KR100527234B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101504977B1 (en) 2013-04-25 2015-03-23 주식회사 포스코 Apparatus for preheating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101504977B1 (en) 2013-04-25 2015-03-23 주식회사 포스코 Apparatus for preheating

Also Published As

Publication number Publication date
KR20050043369A (en) 2005-05-11

Similar Documents

Publication Publication Date Title
KR100527234B1 (en) Apparatus for preheating of nozzle
CZ116694A3 (en) Method for automatic applying carbon black to blank mould and apparatus for making the same
JP2756454B2 (en) Immersion nozzle preheating device
KR101249052B1 (en) Device for heating submerged nozzle of turndish in continuous casting line
JP4464789B2 (en) Refractory brick for steel making preheated before use and its heat insulation method
US4455014A (en) Production of refractory linings or walls
JP3608692B2 (en) Crucible furnace
KR100870162B1 (en) Refractory nozzle for a metallurgical vessel
JPS62224473A (en) Preheating apparatus for refractory-made rod-like body for ladle
KR20030021728A (en) Heating apparatus of tundish for anti heat leak
CA2367171A1 (en) Method and apparatus for the thermal treatment of an object such as an optical fiber preform
KR20050114398A (en) Apparatus for preheating of turndish nozzle
KR200330303Y1 (en) Nonferrous metal solution crucible furnace
JP3220073B2 (en) Nozzle for zinc die casting equipment
KR19990062680A (en) Injection tip protection device of burner and heating device having this protection device
KR20190044238A (en) Ignition device for oxygen lance
EP0916435B1 (en) Casting furnace for automatic molding
JP7416478B1 (en) Continuous casting nozzle preheating device
KR100803978B1 (en) Device for maintaining temperature of powder in mold for continuous casting plant
JPH10115490A (en) Graphite crucible table
JP2000061616A (en) Ladle for casting
JPS6310480Y2 (en)
KR200178752Y1 (en) Device for air cooling the nozzle cover of tundish burner
KR100470655B1 (en) Non-oxidizational heat retention device for tundish in continuous casting process
KR101038554B1 (en) Y type stud for forming water passage in the refractory of tundish and method for forming refractory of tundish using the same

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
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20101230

Year of fee payment: 7

LAPS Lapse due to unpaid annual fee