KR19990052666A - How to prevent inflow of slag in molten iron - Google Patents

How to prevent inflow of slag in molten iron Download PDF

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Publication number
KR19990052666A
KR19990052666A KR1019970072180A KR19970072180A KR19990052666A KR 19990052666 A KR19990052666 A KR 19990052666A KR 1019970072180 A KR1019970072180 A KR 1019970072180A KR 19970072180 A KR19970072180 A KR 19970072180A KR 19990052666 A KR19990052666 A KR 19990052666A
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South Korea
Prior art keywords
molten iron
slag
electromagnet
voltage supply
supply device
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KR1019970072180A
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Korean (ko)
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권영섭
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이구택
포항종합제철 주식회사
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Priority to KR1019970072180A priority Critical patent/KR19990052666A/en
Publication of KR19990052666A publication Critical patent/KR19990052666A/en

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Abstract

본 발명은 슬래그탕도의 외면에 설치된 전자석과 전자석에 전류를 공급하는 전압공급장치와 전압공급장치와 전자석사이에 위치한 인버터로 구성되어, 전압공급장치와 인버터를 통해 전자석에 전류가 공급되면 전자기력(로렌쯔력)이 발생하여 용선차단막을 형성하고 용선차단막으로 인하여 슬래그탕도로 유출되던 용선이 방향을 전환하여 용선탕도로 되돌아가는 것을 특징으로 하는 용선의 슬래그탕도유입방지방법에 관한 것으로, 용선이 슬래그탕도로 유출되는 것을 사전에 방지하는 효과가 있어 용선탕도로 흘러가야 할 용선이 슬래그탕도로 흘러가서 드라이 핏(Dry Pit)으로 유출하게 됨으로써 발생하는 폭발등의 문제를 해결할 수 있는 효과가 있다.The present invention is composed of a voltage supply device for supplying current to the electromagnet and the electromagnet installed on the outer surface of the slagtangdo and an inverter located between the voltage supply device and the electromagnet, the electromagnetic force is supplied when the current is supplied to the electromagnet through the voltage supply device and the inverter Lorentz force) is generated to form a molten iron barrier film, and the molten iron which flows out into the slag melt due to the molten iron barrier film changes direction and returns to the molten iron bath. There is an effect that prevents the outflow to the hot water in advance, the molten iron to flow to the molten iron flows into the slag tang to dry pit (Dry Pit) to solve the problems such as explosion caused by.

Description

용선의 슬래그탕도유입방지방법How to prevent inflow of slag in molten iron

본 발명은 용선의 슬래그탕도유입방지방법에 관한 것으로, 보다 상세하게는 고로나 코렉스에서 출선구를 통해 출선할 때 용선이 슬래그탕도로 유출되는 것을 사전에 차단하는 방법에 관한 것이다.The present invention relates to a method of preventing slag inflow of molten iron, and more particularly, to a method of preventing molten iron from leaking out into slag in advance when smelting from a blast furnace or corex through an outlet.

고로나 코렉스에서 출선구를 통해 용선을 출선하게 되면 용선과 슬래그는 대탕도를 따라 흘러간다.When you charter a charterer at the blast furnace or corex, the charterer and slag flow along the large bath.

용선과 슬래그는 대탕도를 따라 흘러가던중 비중차이로 인하여 스키머(skimmer)에 의해서 비중이 큰 용선은 용선탕도로 흘러가고 비중이 작은 슬래그는 슬래그탕도로 흘러가게 된다.Due to the difference in specific gravity, the molten iron and the slag flow along the large hot water, and the molten iron with a high specific gravity flows to the molten iron by the skimmer, and the small specific slag flows into the slag hot water.

이때 용선탕도로 흘러가야 할 용선이 슬래그탕도로 흘러가서 드라이 핏(Dry Pit)으로 유출하게 되면 폭발이 일어나는 등 많은 문제가 발생한다.At this time, when the molten iron that needs to flow into the molten iron flows into the slag tang and flows into the dry pit, an explosion occurs.

종래에는 용선이 슬래그탕도로 유출되는 것을 방지하기 위하여 용선이 슬래그탕도로 유출되는 경우 이를 감지하여 조업자에게 단순히 통보하는 용선검출기를 사용하여 왔다.Conventionally, in order to prevent the molten iron from leaking into the slag tang, a molten iron detector is used to detect when the molten iron is spilled into the slag tang and simply notify the operator.

용선검출기가 용선이 슬래그탕도로 유출되는 것을 감지하여 조업자에게 통보하게 되면 조업자는 드라이 핏에서 용선으로 인한 폭발이 발생하는 것을 방지하는 조치를 취하게 된다.If the charter detector detects the charter leaking into the slag tang and notifies the contractor, the operator will take steps to prevent the explosion of the charter from the dry fit.

그러나 이러한 방법은 용선이 슬래그탕도로 유출된 후 용선으로 인한 폭발을 방지하는 등의 조치를 취하는 것이므로 사후적인 방법에 불과하다.However, this method is only a post-mortem method because measures are taken to prevent the explosion due to the molten iron after the molten iron is spilled into the slag tang.

따라서 용선이 슬래그탕도로 유출되는 것을 사전에 근원적으로 차단하는 시스템이 요구된다.Therefore, there is a need for a system that essentially blocks the flow of molten iron into slag in advance.

상기의 문제점을 해결하기 위한 본 발명은 용선이 슬래그탕도로 유출되는 경우 전자기력을 발생시켜 용선차단막을 형성함으로써 용선이 슬래그탕도로 유출되는 것을 사전에 차단하는 방법을 제공함을 그 목적으로 한다.An object of the present invention for solving the above problems is to provide a method for blocking the flow of molten iron in advance to the slag melt by forming a molten iron shielding film by generating an electromagnetic force when the molten iron flows out into the slag.

도 1은 본 발명의 용선의 슬래그탕도유입방지방법의 구성도1 is a block diagram of a method for preventing slag inflow of molten iron of the present invention

<도면의 주요부호에 대한 설명><Description of Major Symbols in Drawing>

1:전압공급장치 2:인버터1: voltage supply 2: inverter

3:출선구 4:대탕도3: exit 4: large bath

5:슬래그탕도 6:용선탕도5: slag bath 6: molten hot water

7:용선차단막 8:전자석7: Charter Block 8: Electromagnet

9:전자기력 10:슬래그의 운동방향9: electromotive force 10: direction of slag movement

11:용선 12:슬래그11: Charter 12: Slag

상기의 목적을 달성하기 위한 본 발명은 슬래그탕도의 외면에 설치된 전자석과 전자석에 전류를 공급하는 전압공급장치와 전압공급장치와 전자석사이에 위치한 인버터로 구성되어, 전압공급장치와 인버터를 통해 전자석에 전류가 공급되면 전자기력(로렌쯔력)이 발생하여 용선차단막을 형성하고 용선차단막으로 인하여 슬래그탕도로 유출되던 용선이 방향을 전환하여 용선탕도로 되돌아가도록 하여 용선이 슬래그탕도로 유출되는 것을 방지한다.The present invention for achieving the above object is composed of a voltage supply device for supplying current to the electromagnet and the electromagnet installed on the outer surface of the slagtangdo, and an inverter located between the voltage supply device and the electromagnet, the electromagnet through the voltage supply device and the inverter When the current is supplied to the electromagnetic force (Lorentz force) is generated to form a molten iron shielding film, and the molten iron flowed out to the slag melt due to the molten iron shielding film to change the direction to return to the molten metal to prevent the molten iron flows out into the slagtang.

이하 도면을 참조하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

용선과 슬래그는 출선구(3)를 통해 대탕도(4)로 유출되다가 용선과 슬래그의 비중차이로 인하여 스키머에 의해 용선은 용선탕도(6)로 슬래그는 슬래그탕도(5)로 흘러가게 된다.The molten iron and the slag flow out to the large bathway (4) through the outlet (3), and due to the difference in specific gravity of the molten iron and the slag, the molten iron flows to the molten iron road (6) by the skimmer and the slag flows into the slag trough (5) do.

그러나 용선탕도(6)로 흘러가야 할 용선(11)중 일부가 슬래그탕도(5)로 흘러가는 경우가 발생하고 용선이 슬래그탕도로 흘러가게 되면 전술한 바와 같은 문제점이 발생하게 된다.However, when some of the molten iron 11 to be flowed into the molten iron (6) flows into the slag molten metal (5) occurs and the molten iron flows into the slag molten iron occurs as described above.

본 발명의 용선의 슬래그탕도로의 유입을 방지하기 위한 방법은 슬래그탕도(5)의 외면에 설치된 전자석(8)과 전자석(8)에 전류를 공급하는 전압공급장치(1)와 전압공급장치(1)와 전자석(8)사이에 위치한 인버터(2)로 구성된다.The method for preventing the inflow of molten iron into the slag road is a voltage supply device (1) and a voltage supply device for supplying a current to the electromagnet (8) and the electromagnet (8) provided on the outer surface of the slag Tangdo (5) It consists of an inverter (2) located between (1) and the electromagnet (8).

전압공급장치(1)는 인버터(2)를 통해 전자석(8)에 전류를 상시적으로 공급한다.The voltage supply device 1 constantly supplies current to the electromagnet 8 through the inverter 2.

전자석(8)에 전류가 공급되면 전류와 자기장에 의해 전자기력(로렌쯔력)(9)이 생성되고 이러한 전자기력으로 인하여 슬래그탕도(5)의 저면에 용선차단막(7)이 형성된다.When a current is supplied to the electromagnet 8, an electromagnetic force (Lorentz force) 9 is generated by the electric current and the magnetic field, and the molten iron barrier film 7 is formed on the bottom of the slagtangdo 5 due to the electromagnetic force.

용선(11)이 슬래그탕도(5)로 흘러가게 되면 용선이 슬래그에 비해 비중이 크므로 슬래그탕도(5)의 저면을 따라 흘러가게 된다.When the molten iron 11 flows into the slag tangle 5, the molten iron flows along the bottom surface of the slag tangle 5 because the specific gravity is greater than that of the slag.

슬래그탕도(5)로 유출되던 용선(11)은 슬래그탕도(5)의 저면에 형성된 용선차단막(7)으로 인하여 방향을 전환하여 용선탕도(6)로 되돌아가게 된다.The molten iron 11 which has flowed out into the slag melter 5 is changed to the molten iron shielding film 7 formed on the bottom of the slag melter 5 to return to the molten iron melter 6.

따라서 슬래그탕도로 용선이 유출되는 것이 방지된다.Therefore, the molten iron is prevented from flowing into the slag melt.

상기와 같은 본 발명의 방법은 전자기력에 의하여 슬래그탕도 저면에 용선차단막을 형성함으로써 용선이 슬래그탕도로 유출되는 것을 사전에 방지하는 효과가 있다.The method of the present invention as described above has the effect of preventing the molten iron to flow out into the slag by forming a molten iron shielding film on the slag bottom also by the electromagnetic force.

따라서 용선탕도로 흘러가야 할 용선이 슬래그탕도로 흘러가서 드라이 핏(Dry Pit)으로 유출하게 됨으로써 발생하는 폭발등의 문제를 해결할 수 있다.Therefore, it is possible to solve a problem such as an explosion caused by the molten iron to flow to the molten iron flows into the slag tang and flows into the dry pit (Dry Pit).

Claims (1)

슬래그탕도의 외면에 설치된 전자석과 전자석에 전류를 공급하는 전압공급장치와 전압공급장치와 전자석사이에 위치한 인버터로 구성되어, 전압공급장치와 인버터를 통해 전자석에 전류가 공급되면 전자기력(로렌쯔력)이 발생하여 용선차단막을 형성하고 용선차단막으로 인하여 슬래그탕도로 유출되던 용선이 방향을 전환하여 용선탕도로 되돌아가는 것을 특징으로 하는 용선의 슬래그탕도유입방지방법.It consists of an electromagnet installed on the outer surface of slagtang and a voltage supply device for supplying current to the electromagnet, and an inverter located between the voltage supply device and the electromagnet. This method forms a molten iron barrier film, and the molten iron which flowed out into the slag melt due to the molten iron barrier film changes direction and returns to the molten iron bath.
KR1019970072180A 1997-12-23 1997-12-23 How to prevent inflow of slag in molten iron KR19990052666A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010045634A (en) * 1999-11-05 2001-06-05 이구택 The Main Iron Through including the Electromagnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010045634A (en) * 1999-11-05 2001-06-05 이구택 The Main Iron Through including the Electromagnet

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