WO2014061950A1 - Steelmaking slag atomizing system using waste heat - Google Patents

Steelmaking slag atomizing system using waste heat Download PDF

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Publication number
WO2014061950A1
WO2014061950A1 PCT/KR2013/009145 KR2013009145W WO2014061950A1 WO 2014061950 A1 WO2014061950 A1 WO 2014061950A1 KR 2013009145 W KR2013009145 W KR 2013009145W WO 2014061950 A1 WO2014061950 A1 WO 2014061950A1
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Prior art keywords
slag
waste heat
dryer
atomizing
transferring
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PCT/KR2013/009145
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French (fr)
Korean (ko)
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오상윤
문영배
강정훈
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주식회사 에코마이스터
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Publication of WO2014061950A1 publication Critical patent/WO2014061950A1/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/05—Apparatus features
    • C21B2400/066—Receptacle features where the slag is treated
    • C21B2400/074—Tower structures for cooling, being confined but not sealed
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to an apparatus for atomizing steelmaking slag using waste heat and an atomizing method of steelmaking slag using the same. More specifically, after drying the material including moisture after granulation by recovering waste heat generated during atomizing the molten slag
  • the present invention relates to a steelmaking slag atomizing device that allows the process to proceed and an atomizing method of steelmaking slag using the same.
  • Patent 10-1159594 is a technique for the waste heat recovery device for blast furnace slag used in the steelmaking process.
  • the document discloses a cooling spray unit for cooling the blast furnace slag by injecting cooling water to the blast furnace slag supplied to the housing unit, and a waste heat exchanger installed above the cooling spray unit and performing heat exchange with waste heat of the blast furnace slag, and a waste heat exchanger.
  • a guide pipe part for guiding air to a storage tank provided outside the housing part, and a main injection part for removing foreign matters from the air by injecting dust removal into the guide pipe part, and a control part for controlling the operation of the cooling injection part and the main injection part. It is composed.
  • the slag supply pipe 130 for guiding the movement of the blast furnace slag 120 through the side of the housing unit 110 is installed, the housing along the slag supply pipe 130
  • the blast furnace slag 120 is supplied to the inside of the unit 110.
  • the waste heat exchanger 180 installed above the cooling spray unit 140 is connected to the inlet pipe 190A through which the working fluid is supplied and the discharge pipe 190B through which the working fluid is discharged, and the blast furnace slag 120. Since waste heat and heat exchange is made), the waste heat generated during the cooling operation of the blast furnace slag 120 is recovered and reused, thereby operating to reduce hot water supply costs.
  • the main object of the present invention is to provide a waste heat recovery system applicable to an atomizing device installed in a narrow space.
  • Drying apparatus (Dryer) of the present invention is characterized in that the rotary kiln form.
  • the present invention also provides a method for manufacturing steelmaking slag based on the above system.
  • Steelmaking slag atomizing system using the waste heat of the present invention can be installed in a narrow space and recover the waste heat of 150 ⁇ 200 °C generated by atomizing by using this to remove the moisture of the slag to reduce the power ratio and the environment according to the generation of waste heat The effect of solving the problem of pollution is expected.
  • FIG. 1 is a schematic diagram of a system for recovering waste heat in a conventional steelmaking slag treatment process.
  • FIG. 2 is a view showing the configuration of a drying system of steelmaking slag using waste heat of the present invention.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • FIG. 1 is a schematic diagram of a system for recovering waste heat in a conventional steelmaking slag treatment process. Detailed description thereof is as described above and will be omitted.
  • the drying system of the steelmaking slag using the waste heat of the present invention includes a slag port (1); A tundish 3; Gas nozzles 4 and 5; A cooling fence 7; A bucket elevator 8; The separator 10, the dryer 11, and the dust collector 12 are connected to an atomizing device including a sieve screen 9.
  • the slag port 1 serves to receive and discharge the molten slag.
  • the tundish 3 serves to drop the molten slag discharged from the slag port to a lower portion while temporarily storing the molten slag.
  • the gas nozzles 4 and 5 inject the gas forward to inject and transport the molten slag discharged from the tundish using the kinetic energy of the gas.
  • the cooling fence 7 is provided to quench the liquid crystal of slag scattered by the gas nozzle.
  • the bucket elevator 8 transfers the scattered slag to a sieve screen.
  • the sieve screen 9 controls the particle size of the scattered slag.
  • the separator 10 separates waste heat generated after atomizing and transfers the waste heat to a dryer 11.
  • the dryer 11 receives the waste heat from the slag in the wet state and the separator 10 to dry the slag through heat exchange, and then transfers the slag to the rear end equipment and the heat exchanged waste heat to the following dust collector 12. Transfer.
  • the dust collector 12 receives waste heat from the dryer 11 and uses it as a power source to suck in dust or fine contaminants around the workplace.
  • 150 to 200 waste heat generated during atomization of steelmaking slag can be more effectively recovered and recycled to remove water from the slag, thereby reducing the power cost and solving the problem of environmental pollution caused by waste heat.

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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)
  • Furnace Details (AREA)

Abstract

The present invention relates to a system for drying steelmaking slag using waste heat. The system includes: a slag port; a tundish; a gas nozzle; a cooling fence; a bucket elevator; a sieve screen; a separator; a dryer that receives the waste heat from the separator, dries the slag through heat exchange, transfers the slag to down-line equipment, and transfers the heat exchanged waste heat to a following dust collector; and the dust collector. The system collects the waste heat at a temperature of 150°C to 200°C generated during atomization and removes moisture from the slag using the waste heat, thereby reducing electricity costs and solving environmental pollution problems caused by waste heat.

Description

폐열을 이용한 제강 슬래그 아토마이징 시스템Steelmaking Slag Atomizing System Using Waste Heat
본 발명은 폐열을 이용한 제강 슬래그 아토마이징 장치 및 이를 이용한 제강 슬래그의 아토마이징 방법에 관한 것으로 더욱 상세하게는 용융 슬래그의 아토마이징 과정에서 발생되는 폐열을 회수하여 Granulation 후 수분을 포함한 재료의 건조후 다음 공정을 진행할 수 있도록 하는 제강 슬래그 아토마이징 장치 및 이를 이용한 제강 슬래그의 아토마이징 방법에 관한 것이다.The present invention relates to an apparatus for atomizing steelmaking slag using waste heat and an atomizing method of steelmaking slag using the same. More specifically, after drying the material including moisture after granulation by recovering waste heat generated during atomizing the molten slag The present invention relates to a steelmaking slag atomizing device that allows the process to proceed and an atomizing method of steelmaking slag using the same.
제강 공정에서 사용되는 고로 슬래그용 폐열회수장치에 대한 기술로는 등록특허 10-1159594를 들 수 있다. 상기 문헌은 하우징부로 공급되는 고로슬래그에 냉각수를 분사하여 고로슬래그를 냉각시키는 냉각분사부와, 냉각분사부의 상측에 설치되며 고로슬래그의 폐열과 열교환이 이루어지는 폐열용열교환기와, 폐열용열교환기를 통과하는 공기를 하우징부의 외측에 구비되는 저장탱크로 안내하는 안내관로부와, 안내관로부로 제진수를 분사하여 공기 중의 이물질을 제거하는 메인분사부 및 냉각분사부와 메인분사부의 작동을 제어하는 제어부를 구비하여 구성되어 있다.Patent 10-1159594 is a technique for the waste heat recovery device for blast furnace slag used in the steelmaking process. The document discloses a cooling spray unit for cooling the blast furnace slag by injecting cooling water to the blast furnace slag supplied to the housing unit, and a waste heat exchanger installed above the cooling spray unit and performing heat exchange with waste heat of the blast furnace slag, and a waste heat exchanger. A guide pipe part for guiding air to a storage tank provided outside the housing part, and a main injection part for removing foreign matters from the air by injecting dust removal into the guide pipe part, and a control part for controlling the operation of the cooling injection part and the main injection part. It is composed.
도 1을 참조하여 이를 좀더 상세히 설명하면, 하우징부(110)의 측면을 관통하여 고로슬래그(120)의 이동을 안내하는 슬래그공급관로(130)가 설치되며, 슬래그공급관로(130)를 따라 하우징부(110)의 내측으로 고로슬래그(120)가 공급된다.Referring to Figure 1 in more detail, the slag supply pipe 130 for guiding the movement of the blast furnace slag 120 through the side of the housing unit 110 is installed, the housing along the slag supply pipe 130 The blast furnace slag 120 is supplied to the inside of the unit 110.
냉각분사부(140)는, 슬래그공급관로(130)에서 토출되는 고로슬래그(120)에 고압의 냉각수(150)를 분사하며, 이와같은 고로슬래그(120)의 급랭으로 수재슬래그(160)가 생성되는데, 상기 생성된 수재슬래그(160)는 하우징부(110)의 하측에 구비되는 저장케이스(170)에 담기며, 별도의 관로를 통해 외측으로 배출된다.The cooling spraying unit 140 injects the high pressure cooling water 150 to the blast furnace slag 120 discharged from the slag supply pipe 130, and thus, the handmade slag 160 is generated by the rapid cooling of the blast furnace slag 120. The generated slag 160 is contained in the storage case 170 provided at the lower side of the housing 110 and discharged to the outside through a separate pipe.
상기 냉각분사부(140)의 상측에 설치되는 폐열용열교환기(180)는 작동유체가 공급되는 유입관로(190A)와, 작동유체가 배출되는 배출관로(190B)와 연결되며, 고로슬래그(120)의 폐열과 열교환이 이루어지면서 인해 고로슬래그(120)의 냉각 작업시 발생하는 폐열을 회수하여 재사용하므로, 온수 공급비용을 절감할 수 있도록 작동된다.The waste heat exchanger 180 installed above the cooling spray unit 140 is connected to the inlet pipe 190A through which the working fluid is supplied and the discharge pipe 190B through which the working fluid is discharged, and the blast furnace slag 120. Since waste heat and heat exchange is made), the waste heat generated during the cooling operation of the blast furnace slag 120 is recovered and reused, thereby operating to reduce hot water supply costs.
그러나 이는 전형적인 고로 슬래그용에 적용되는 폐열회수장치(100)에 관한 것으로 폐쇄형 공간에 설치되는 아토마이징 설비에는 적용될 수 없는 문제점이 있었다.However, this relates to a waste heat recovery apparatus 100 applied to a typical blast furnace slag has a problem that can not be applied to the atomizing equipment installed in the closed space.
본 발명은 좁은 공간에 설치되는 아토마이징 장치에 적용가능한 폐열회수시스템을 제공하는 것을 주된 목적으로 한다.The main object of the present invention is to provide a waste heat recovery system applicable to an atomizing device installed in a narrow space.
상기한 과제를 해결하기 위하여 본 발명은 용융 슬래그를 수용하였다가 배출하는 슬래그 포트와; 상기 슬래그 포트에서 배출되는 용용 슬래그를 일시 저장하면서 하부로 낙하시키는 턴디쉬와; 상기 턴디쉬로부터 배출되는 용융 슬래그를 가스의 운동에너지를 사용하여 분사 및 수송하기 위하여 전방으로 가스를 분사하는 가스 노즐과; 상기 가스 노즐에 의하여 비산되는 슬래그의 액정을 급냉시키기 위한 쿨링 펜스(Cooling fence)와; 상기 비산된 슬래그를 시브 스크린(Sieve screen)으로 이송시키기 위한 버킷(Bucket) 엘리베이터와; 비상된 슬래그의 입도를 조절하는 시브 스크린(Sieve screen)과; 아토마이징 후 발생된 폐열을 분리하여 하기 건조장치(Dryer)로 이송시키는 분리기와; 상기 분리기로부터 폐열을 받아들여 열교환을 통해 슬래그를 건조시킨 후 슬래그는 후단설비로 이송시키고 열교환된 폐열은 하기 집진기로 이송시키는 건조장치(Dryer)와; 상기 건조장치(Dryer)로부터 폐열을 입력받아 이를 동력원으로 사용하여 작업장 주위의 먼지나 미세 오염입자들을 흡입하는 집진기;로 구성되는 것을 특징으로 한 폐열을 이용한 제강 슬래그의 건조시스템을 과제 해결을 위한 주요 수단으로 제공한다.In order to solve the above problems, the present invention includes a slag port for receiving and discharging molten slag; A tundish for dropping the molten slag discharged from the slag port to a lower portion while temporarily storing the molten slag; A gas nozzle for injecting gas forward to inject and transport molten slag discharged from the tundish using kinetic energy of gas; A cooling fence for quenching the liquid crystal of slag scattered by the gas nozzle; A bucket elevator for transferring the scattered slag to a sieve screen; A sieve screen for controlling the particle size of the raised slag; A separator for separating the waste heat generated after atomizing and transferring the waste heat to a following dryer; After receiving the waste heat from the separator to dry the slag through heat exchange, the slag is transferred to the rear end equipment and the heat exchanged waste heat is transferred to the following dust collector (Dryer); A dust collector for inputting waste heat from the drying device (Dryer) and using it as a power source to suck dust or fine contaminants around the workplace; the main system for solving the problem of the drying system of steelmaking slag using waste heat. Provided by means.
본 발명의 건조장치(Dryer)는 로타리 킬른 형태인 것을 특징으로 한다.Drying apparatus (Dryer) of the present invention is characterized in that the rotary kiln form.
또한 본 발명은 상기한 시스템을 바탕으로 한 제강 슬래그를 제조하는 방법을 제공한다.The present invention also provides a method for manufacturing steelmaking slag based on the above system.
본 발명의 폐열을 이용한 제강 슬래그 아토마이징 시스템은 좁은 공간에 설치 가능하고 아토마이징 시 발생되는 150~200℃의 폐열을 회수하여 이를 사용하여 슬래그의 수분을 제거함으로써 전력비를 줄이고 폐열의 발생에 따른 환경오염의 문제를 해결할 수 있는 효과가 기대된다.Steelmaking slag atomizing system using the waste heat of the present invention can be installed in a narrow space and recover the waste heat of 150 ~ 200 ℃ generated by atomizing by using this to remove the moisture of the slag to reduce the power ratio and the environment according to the generation of waste heat The effect of solving the problem of pollution is expected.
도 1은 종래의 제강 슬래그 처리공정에서 폐열을 회수하는 시스템에 대한 개략도이다.1 is a schematic diagram of a system for recovering waste heat in a conventional steelmaking slag treatment process.
도 2는 본 발명의 폐열을 이용한 제강 슬래그의 건조시스템의 구성을 나타내는 도면이다.2 is a view showing the configuration of a drying system of steelmaking slag using waste heat of the present invention.
이하 도면과 실시예를 통해 본 발명을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
본 발명은 다양한 변경을 가할 수 있고 여러 가지 실시예를 가질 수 있는 바, 특정 실시 예들을 도면에 예시하고 발명을 실시하기 위한 구체적인 내용에 상세하게 설명하고자 한다.As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description.
그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.
각 도면을 설명하면서 유사한 참조부호를 유사한 구성요소에 대해 사용하였다.In describing the drawings, similar reference numerals are used for similar elements.
제1, 제2, A, B 등의 용어는 다양한 구성요소들을 설명하는데사용될 수 있지만, 상기 구성요소들은 상기 용어들에 의해 한정되어서는 안 된다.Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms.
상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다.The terms are used only for the purpose of distinguishing one component from another.
예를 들어, 본 발명의 권리 범위를 벗어나지 않으면서 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소도제1 구성요소로 명명될 수 있다.For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
및/또는 이라는 용어는 복수의 관련된 기재된 항목들의 조합 또는 복수의 관련된 기재된 항목들 중의 어느 항목을 포함한다.The term and / or includes a combination of a plurality of related items or any item of a plurality of related items.
어떤 구성요소가 다른 구성요소에 "연결되어" 있다거나 "접속되어" 있다고 언급된 때에는, 그 다른 구성요소에직접적으로 연결되어 있거나 또는 접속되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다.When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may exist in between Should be.
반면에, 어떤 구성요소가 다른 구성요소에 "직접 연결되어" 있다거나 "직접 접속되어" 있다고 언급된 때에는, 중간에 다른 구성요소가 존재하지 않는 것으로 이해되어야 할 것이다.On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.
본 출원에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다.The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention.
단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다.Singular expressions include plural expressions unless the context clearly indicates otherwise.
본 출원에서, "포함하다" 또는 "가지다" 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야한다.In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다.Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.
일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥 상 가지는 의미와 일치하는 의미를 가지는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.
이하, 본 발명에 따른 바람직한 실시예를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 종래의 제강 슬래그 처리공정에서 폐열을 회수하는 시스템에 대한 개략도이다. 이에 대한 상세한 설명은 전술한 바와 같아서 생략한다.1 is a schematic diagram of a system for recovering waste heat in a conventional steelmaking slag treatment process. Detailed description thereof is as described above and will be omitted.
도 2는 본 발명의 폐열을 이용한 제강 슬래그의 건조시스템의 구성을 나타내는 도면이다. 도시된 바와 같이 본 발명의 폐열을 이용한 제강 슬래그의 건조시스템은 슬래그 포트(1)와; 턴디쉬(3)와; 가스 노즐(4,5)과; 쿨링 펜스(cooling fence)(7)와; 버킷(bucket) 엘리베이터(8)와; 시브 스크린(sieve screen)(9)으로 구성된 아토마이징 장치에 분리기(10)와 건조장치(Dryer)(11)와 집진기(12)가 연결되어 있는 것을 특징으로 한다.2 is a view showing the configuration of a drying system of steelmaking slag using waste heat of the present invention. As shown, the drying system of the steelmaking slag using the waste heat of the present invention includes a slag port (1); A tundish 3; Gas nozzles 4 and 5; A cooling fence 7; A bucket elevator 8; The separator 10, the dryer 11, and the dust collector 12 are connected to an atomizing device including a sieve screen 9.
상기 슬래그 포트(1)는 용융 슬래그를 수용하였다가 배출하는 역할을 한다.The slag port 1 serves to receive and discharge the molten slag.
상기 턴디쉬(3)는 상기 슬래그 포트에서 배출되는 용용 슬래그를 일시 저장하면서 하부로 낙하시키는 기능을 담당한다.The tundish 3 serves to drop the molten slag discharged from the slag port to a lower portion while temporarily storing the molten slag.
상기 가스 노즐(4,5)은 상기 턴디쉬로부터 배출되는 용융 슬래그를 가스의 운동에너지를 사용하여 분사 및 수송하기 위하여 전방으로 가스를 분사한다.The gas nozzles 4 and 5 inject the gas forward to inject and transport the molten slag discharged from the tundish using the kinetic energy of the gas.
상기 쿨링 펜스(cooling fence)(7)는 상기 가스 노즐에 의하여 비산되는 슬래그의 액정을 급냉시키기 위하여 설치된다.The cooling fence 7 is provided to quench the liquid crystal of slag scattered by the gas nozzle.
상기 버킷(bucket) 엘리베이터(8)는 상기 비산된 슬래그를 시브 스크린(sieve screen)으로 이송시킨다.The bucket elevator 8 transfers the scattered slag to a sieve screen.
상기 시브 스크린(sieve screen)(9)는 상기 비산된 슬래그의 입도를 조절한다.The sieve screen 9 controls the particle size of the scattered slag.
상기 분리기(10)는 아토마이징 후 발생된 폐열을 분리하여 하기 건조장치(Dryer)(11)로 이송시킨다.The separator 10 separates waste heat generated after atomizing and transfers the waste heat to a dryer 11.
상기 건조장치(Dryer)(11)는 젖은 상태의 슬래그와 상기 분리기(10)로부터 폐열을 받아들여 열교환을 통해 슬래그를 건조시킨 후 슬래그는 후단설비로 이송시키고 열교환된 폐열은 하기 집진기(12)로 이송시킨다.The dryer 11 receives the waste heat from the slag in the wet state and the separator 10 to dry the slag through heat exchange, and then transfers the slag to the rear end equipment and the heat exchanged waste heat to the following dust collector 12. Transfer.
상기 집진기(12)는 상기 건조장치(Dryer)(11)로부터 폐열을 입력받아 이를 동력원으로 사용하여 작업장 주위의 먼지나 미세 오염입자들을 흡입한다.The dust collector 12 receives waste heat from the dryer 11 and uses it as a power source to suck in dust or fine contaminants around the workplace.
상기 건조장치는 로타리 킬른 형태의 건조기인 것을 특징으로 한다.The drying device is characterized in that the dryer of the rotary kiln type.
본 발명의 시스템을 사용하면 제강 슬래그의 아토마이징 시 발생되는 150~200 의 폐열을 보다 효과적으로 회수하여 재활용해서 슬래그의 수분을 제거하여 전력비를 줄이고 폐열의 발생에 따른 환경오염의 문제를 해결할 수 있다.By using the system of the present invention, 150 to 200 waste heat generated during atomization of steelmaking slag can be more effectively recovered and recycled to remove water from the slag, thereby reducing the power cost and solving the problem of environmental pollution caused by waste heat.
(부호의 설명)(Explanation of the sign)
1: 슬래그 포트, 3: 턴디쉬,1: slag pot, 3: tundish,
4,5: 가스 노즐, 7: 쿨링 펜스(Cooling fence),4,5: gas nozzle, 7: cooling fence,
8: 버킷(Bucket) 엘리베이터, 9: 시브 스크린(Sieve screen),8: bucket elevator, 9: sieve screen,
10: 분리기(싸이클론), 11: 건조장치(Dryer),10: separator (cyclone), 11: dryer (Dryer),
12: 집진기.12: Dust collector.

Claims (3)

  1. 용융 슬래그를 수용하였다가 배출하는 슬래그 포트(1)와; 상기 슬래그 포트에서 배출되는 용용 슬래그를 일시 저장하면서 하부로 낙하시키는 턴디쉬(3)와; 상기 턴디쉬로부터 배출되는 용융 슬래그를 가스의 운동에너지를 사용하여 분사 및 수송하기 위하여 전방으로 가스를 분사하는 가스 노즐(4,5)과; 상기 가스 노즐에 의하여 비산되는 슬래그의 액정을 급냉시키기 위한 쿨링 펜스(Cooling fence)(7)와; 상기 비산된 슬래그를 시브 스크린(Sieve screen)으로 이송시키기 위한 버킷(Bucket) 엘리베이터(8)와; 비상된 슬래그의 입도를 조절하는 시브 스크린(Sieve screen)(9)과;아토마이징 후 발생된 폐열을 분리하여 하기 건조장치(Dryer)(11)로 이송시키는 분리기(10)와;A slag port 1 for receiving and discharging molten slag; A tundish (3) which drops to the lower side while temporarily storing molten slag discharged from the slag port; Gas nozzles (4, 5) for injecting gas forward to inject and transport molten slag discharged from the tundish using kinetic energy of gas; A cooling fence (7) for quenching the liquid crystal of slag scattered by the gas nozzle; A bucket elevator 8 for transferring the scattered slag to a sieve screen; A sieve screen 9 for adjusting the particle size of the evacuated slag; and a separator 10 for separating waste heat generated after atomizing and transferring the waste heat to the following dryer 11;
    상기 분리기(10)로부터 폐열을 받아들여 열교환을 통해 슬래그를 건조시킨 후 슬래그는 후단설비로 이송시키고 열교환된 폐열은 하기 집진기(12)로 이송시키는 건조장치(Dryer)(11)와;A drying device (11) for receiving waste heat from the separator (10) to dry the slag through heat exchange, and then transferring the slag to a post-end facility and transferring the heat-exchanged waste heat to the following dust collector (12);
    상기 건조장치(Dryer)(11)로부터 폐열을 입력받아 이를 동력원으로 사용하여 작업장 주위의 먼지나 미세 오염입자들을 흡입하는 집진기(12);로 구성되는 것을 특징으로 한 폐열을 이용한 제강 슬래그 아토마이징 시스템.Steelmaking slag atomizing system using waste heat, characterized in that consisting of; dust collector (12) for receiving the waste heat from the dryer (Dryer) 11 and using it as a power source to suck dust or fine contaminants around the workplace .
  2. 제 1항에 있어서,The method of claim 1,
    상기 건조장치(Dryer)(11)는 로타리 킬른인 것을 특징으로 한 폐열을 이용한 제강 슬래그 아토마이징 시스템.The drying apparatus (Dryer) (11) is a steel slag atomizing system using waste heat, characterized in that the rotary kiln.
  3. 제 1항 또는 제 2항의 시스템을 이용한 제강 슬래그를 아토마이징하는 방법.A method for atomizing steelmaking slag using the system of claim 1.
PCT/KR2013/009145 2012-10-19 2013-10-14 Steelmaking slag atomizing system using waste heat WO2014061950A1 (en)

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CN104460741A (en) * 2014-08-27 2015-03-25 山东钢铁股份有限公司 Outlet temperature control system and method of EC
CN110127388A (en) * 2018-02-09 2019-08-16 中冶宝钢技术服务有限公司 Slag processing system

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JPS5558306A (en) * 1978-10-23 1980-05-01 Nippon Steel Corp Recovering method for potential heat of blast furnace molten slag
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JPS5413495A (en) * 1977-07-01 1979-01-31 Mitsubishi Heavy Ind Ltd Continuously recovering equipment for heat of molten slag
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CN104460741A (en) * 2014-08-27 2015-03-25 山东钢铁股份有限公司 Outlet temperature control system and method of EC
CN110127388A (en) * 2018-02-09 2019-08-16 中冶宝钢技术服务有限公司 Slag processing system

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