KR20080036753A - Trough and frame assembly structure possessing a distribution chute - Google Patents

Trough and frame assembly structure possessing a distribution chute Download PDF

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Publication number
KR20080036753A
KR20080036753A KR1020060103390A KR20060103390A KR20080036753A KR 20080036753 A KR20080036753 A KR 20080036753A KR 1020060103390 A KR1020060103390 A KR 1020060103390A KR 20060103390 A KR20060103390 A KR 20060103390A KR 20080036753 A KR20080036753 A KR 20080036753A
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South Korea
Prior art keywords
trough
frame
chute
gutter
assembly structure
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KR1020060103390A
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Korean (ko)
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KR100862160B1 (en
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주재호
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주식회사 포스코
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Priority to KR1020060103390A priority Critical patent/KR100862160B1/en
Publication of KR20080036753A publication Critical patent/KR20080036753A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/16—Interior surfaces; Linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/12—Chutes pivotable
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/008—Composition or distribution of the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones

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  • Blast Furnaces (AREA)

Abstract

A distribution chute including a trough and a frame is provided to have superior heat-resistant and wear-resistant properties under the high temperature condition. A distribution chute comprises a trough(101) for guiding raw materials introduced into a furnace, and a frame(100) for supporting the trough at both sides of the trough. A blind flange(102) is provided to prevent the raw material from dropping to the rear side of the trough. Tie bars(105,106) are provided to secure the assembling structure between the frame and the trough. The trough is composed of a body and a liner which are integrally formed with each other and divided into several sections such that the trough is prevented from being deformed under the high temperature condition.

Description

홈통과 프레임 조립식 구조를 구비한 고로선회슈트 { Trough and frame assembly structure possessing a distribution chute }Trough and frame assembly structure possessing a distribution chute}

도 1은 현재의 고로노정 선회경동장치의 단면도.1 is a cross-sectional view of the present blast furnace track turning device.

도 2는 종래기술에 따른 선회슈트(Flat Type)의 사시도.Figure 2 is a perspective view of a flat chute (Flat Type) according to the prior art.

도 3은 종래기술에 따른 선회슈트(Y-Type)의 사시도.3 is a perspective view of a turning suit (Y-Type) according to the prior art.

도 4는 본 발명에 따른 홈통과 프레임 조립식 구조를 구비한 고로선회슈트의 사시도.Figure 4 is a perspective view of the blast furnace turning chute with a prefabricated frame assembly structure according to the present invention.

< 도면의 주요부분에 사용된 부호의 설명 ><Description of Symbols Used in Main Parts of Drawings>

1 : 구동모터 2 : 스파우트(Spout)1: drive motor 2: spout

3 : 유성차동치차감속기(Planetary Differential Gear Reducer)3: Planetary Differential Gear Reducer

4 : 선회슈트 5 : 열전대 온도측정기 6 : 고로4: turning chute 5: thermocouple temperature measuring instrument 6: blast furnace

7 : 머리부 8 : 본체부 9 : 볼트 조립부7: head portion 8: body portion 9: bolt assembly portion

10 : 라이너(Liner) 11 : 방열판(Heat Protection Cover)10: Liner 11: Heat Protection Cover

12 : 고정봉(Tie Bar)12: tie bar

100 : 프레임 101 : 홈통(Trough)100: frame 101: trough

102 : 맹판(Blind Flange) 103 : 고정볼트102: blind flange 103: fixing bolt

104 : 체결너트 105 : 외측 고정봉104: tightening nut 105: outer fixing rod

106 : 내측 고정봉106: inner fixing rod

본 발명은 고로본체설비로서 노의 상부에서 수송원료(소결광, 코크스 등)를 조업조건에 맞게 분포시켜 고로의 내부로 장입하기 위한 선회슈트(Distribution Chute)에 관한 것으로서, 보다 상세하게는, 상기 수송원료와의 마찰과 노내의 고온의 분위기에 대해 내열내마모성을 유지하고, 크리프변형(Creep Deformation)을 방지함으로써 선회슈트의 수명을 연장하여 고로조업을 안정화시키는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution chute for distributing transport raw materials (sintered ore, coke, etc.) at the top of a furnace according to operating conditions and charging them into the blast furnace. Furnace slewing chute with prefabricated frame assembly structure that stabilizes blast furnace operation by extending the life of slewing chute by maintaining the wear resistance against friction with raw materials and high temperature atmosphere in the furnace and preventing creep deformation. It is about.

최근 고로조업은 자원고갈로 저급원료를 사용하는 실정이며, 저급철광석의 환원을 촉진시키고 노황안정, 노벽의 기밀유지(sealing)에 의한 노체보호를 위해 노중심으로 코크스를 추가 장입함으로써 노중심온도가 상승하였다. 이로 인해 그 상부에 있는 선회슈트와 노정온도측정기(Temperature Probe)가 열변형되어 조기에 파손되는 현상이 발생되고 있다.In recent years, blast furnace operations use low-grade raw materials due to resource depletion, and the furnace-center temperature is increased by adding coke to the center of the furnace to promote the reduction of low-grade iron ore and to protect the furnace by stabilizing the furnace and maintaining the confidentiality of the furnace walls. Rose. As a result, the turning chute and the temperature probe (Temperature Probe) in the upper portion is thermally deformed, causing early breakage.

도 1에서는 노정장입설비 중 선회경동장치를 도시하고 있는데, 구동모터(1), 원료낙하부위 통로인 스파우트(Spout)(2), 유성차동치차감속기(Planetary Differential Gear Reducer)(3)로 구성된 기어트레인(Gear Train), 조업표준에 따라 원료를 고로내로 분포시켜 주는 선회슈트(4) 및 열전대 온도측정기(5)로 구성되어 있다. Figure 1 shows a turning tilting device of the top loading equipment, a gear consisting of a drive motor (1), a spout (2) as a raw material dropping part passage, a planetary differential gear reducer (3) It consists of a train (Gear Train), a swing chute (4) and a thermocouple temperature measuring instrument (5) for distributing the raw materials into the blast furnace according to the operating standards.

도 2에서는 종래의 선회슈트가 도시되어 있는데 선회구동장치와 조립되는 머리부(7)와 본체 부(8)가 볼트 조립부(9)에 의해 체결되는 구조를 기본으로 하며, 원료에 의해 마모가 되는 홈통부위에는 라이너(Liner)(10)가 내마모 육성용접 방식으로 체결된다. 한편, 노내 복사열을 받는 하부에는 단열재가 부착된 방열판(Heat Protection Cover)(11)이 볼트로 조립되고, 상부에는 본체부(8)를 지지하는 고정봉(Tie Bar)(12)이 볼트로 조립되는 구조로 되어있다.2 shows a conventional swing chute, which is based on a structure in which the head part 7 and the main body part 8 assembled with the swing drive device are fastened by the bolt assembly part 9, and wear is caused by raw materials. Liner (10) is fastened to the trough portion to be abrasion-resistant welding method. On the other hand, a heat protection cover 11 with heat insulating material is assembled with a bolt at a lower part that receives radiant heat inside the furnace, and a tie bar 12 supporting the main body 8 is assembled with a bolt at an upper part thereof. It is structured.

현재까지 사용하고 있는 선회슈트는 고온용 스테인레스강판을 볼트접합한 구조로 제작되며, 편평한 형(Flat Type)과 도 3에서 도시한 바와 같이 이를 보완한 Y-형(Y-Type)이 사용되고 있다.The swing chute that has been used up to now is manufactured in a structure in which a high temperature stainless steel plate is bolt-bonded, and a flat type and a Y-type complementing it as shown in FIG. 3 are used.

그러나, 노중심 코크스장입의 고온 조업조건하에서 구동장치에 조립되는 머리부(7)와 홈통부위인 본체부(8)를 볼트접합시키는 목(Neck)부위에서 크리프변형(Creep Deformation) 및 볼트절단으로 꺾임절손이 발생되는 문제가 있고, 강판조립구조의 본체부(8), 여러겹의 라이너(10), 볼트접합된 하부 방열판(11)으로 제작된 홈통(Trough)부위에서 고온변형 및 볼트절단이 발생되는 문 제와 홈통의 변형 및 라이너의 이상마모가 발생되는 문제점이 있었다.However, creep deformation and bolt cutting are performed at the neck where the head part 7 assembled to the drive unit and the main body part 8 which is the trough part are bolted under the high temperature operating condition of the furnace core coke charging. There is a problem that breakage occurs, and high temperature deformation and bolt cutting are performed at the trough portion made of the main body portion 8 of the steel plate assembly structure, multiple liners 10, and the bolted lower heat sink 11. There was a problem that the problem occurs and deformation of the gutter and abnormal wear of the liner.

이에, 본 발명은 상술한 바와 같은 종래의 문제점들을 개선시키기 위한 것으로 그 목적은, 고로 내부의 고온분위기에서 내열내마모성을 유지하고, 크리프변형을 방지함으로써 선회슈트의 수명을 연장하여 고로조업을 안정화시키는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트를 제공하는데 있다.Accordingly, the present invention is to improve the conventional problems as described above, the object is to maintain the wear resistance in the high temperature atmosphere inside the blast furnace, and to prevent creep deformation to extend the life of the swing chute to stabilize the blast furnace operation It is to provide a blast furnace turning chute with a gutter frame assembly structure.

상기와 같은 목적을 달성하기 위한 기술적인 구성으로서 본 발명은, 장입되는 원료를 안내하기 위한 홈통(Trough)(101), 상기 홈통(101)을 지지하기 위한 프레임(100), 장입되는 원료가 상기 홈통(101)의 후방으로 낙광되지 않도록 차단하는 맹판(Blind Flange)(102) 및 상기 프레임(100)의 상기 홈통(101)을 좌우 양측에서 지지하기 위한 간격을 유지시키고, 상기 프레임(100)과 상기 홈통(101)의 조립구조를 견고히 하는 내측 고정봉(106)과 외측 고정봉(105)을 포함하여 이루어지는 것을 특징으로 한다.The present invention as a technical configuration for achieving the above object, the trough 101 for guiding the raw material to be charged, the frame 100 for supporting the trough 101, the raw material to be loaded Maintains a gap for supporting the blind flange 102 to prevent falling to the rear of the gutter 101 and the gutter 101 of the frame 100 on both left and right sides, and the frame 100 and It characterized in that it comprises an inner fixing rod 106 and the outer fixing rod 105 to strengthen the assembly structure of the trough 101.

이하, 첨부된 도면에 따라 본 발명인 홈통과 프레임 조립식 구조를 구비한 고로선회슈트의 구성과 작용을 설명한다.Hereinafter, the configuration and operation of the blast furnace turning chute provided with a trough frame assembly structure of the present invention according to the accompanying drawings.

도 4는 본 발명에 따른 홈통과 프레임 조립식 구조를 구비한 고로선회슈트의 사시도이며, 홈통(101), 프레임(100), 맹판(102), 고정볼트(103), 체결너트(104), 내측 고정봉(106) 및 외측 고정봉(105)으로 구성되어진다. Figure 4 is a perspective view of the blast furnace turning chute with a trough and frame assembly structure according to the present invention, the trough 101, the frame 100, the blind plate 102, the fixing bolt 103, the fastening nut 104, the inner It consists of a fixed rod 106 and an outer fixed rod 105.

도 4에서 도시한 바와 같이 홈통(101)은 본체와 라이너를 통합하여 주물품으로 일체화시켜 제작한다. 이를 통하여 선회슈트의 중량을 감소시켜 조립부의 구조적인 안정을 유지하고, 복사열에 의한 열변형을 방지시킬 수 있는 장점이 있다.As shown in FIG. 4, the trough 101 is manufactured by integrating the main body and the liner into a cast product. This reduces the weight of the swing chute to maintain the structural stability of the assembly, there is an advantage that can prevent the thermal deformation due to radiant heat.

한편, 상기 홈통(101)은 다수개의 분할된 용접구조용 주강품모재로 제작되며, 각 홈통(101)간의 하단부 접합면은 장입되는 원료의 낙광을 줄이기 위하여 경사진 접합면의 형태로 이루어져 조립되어진다. 이와 같이 분할된 홈통(101)을 다수개 접합시키는 구조를 통하여 고열개소에서 홈통(101) 전체가 뒤틀리는 변형이 발생하지 않도록 하는 효과가 있다. On the other hand, the trough 101 is made of a plurality of divided steel cast steel base material for the welded structure, the lower end joining surface between each trough 101 is assembled in the form of an inclined joining surface in order to reduce the fall of the raw material to be charged. Thus, through the structure of joining a plurality of divided troughs 101, there is an effect that the deformation of the entire trough 101 is not distorted at high heat locations.

또한, 그 내측은 장입되는 원료에 의한 마모를 방지하기 위하여 내측에 내열내마모 육성용접을 하며, 체류원료를 통한 마모를 줄이기 위하여 홈형상의 스토운박스(Stone Box) 구조로 제작되는 것이 바람직하다.In addition, the inner side is heat-resistant wear-resistant welding on the inner side to prevent abrasion due to the raw material to be charged, it is preferable to be made of a groove shaped Stone Box structure to reduce the wear through the raw material. .

도 5에서 도시한 바와 같이, 프레임(100)은 외팔보(Cantilever) 구조로 매달린 선회슈트의 머리부와 본체부를 일체화시켜 제작한다. 이를 통하여 구조적인 취약개소를 제거할 수 있으며, 상기 분할된 홈통(101)을 전반에 걸쳐 지지할 수 있다. As shown in FIG. 5, the frame 100 is manufactured by integrating the head and the main body of the swing chute suspended in a cantilever structure. Through this, structural weak spots can be removed, and the divided trough 101 can be supported throughout.

한편, 상기 프레임(100)은 원료하중과 상기 홈통(101)의 자중이 걸리는 고정 볼트(103)의 구멍을 중심으로 상하부의 높이를 크게하고, 볼트구멍부근의 상하부위를 사각구멍으로 제거하여 굽힘단면계수를 크게함으로써 외팔보 형상의 일체식구조를 효과적으로 지지하도록 한다.On the other hand, the frame 100 is bent by increasing the height of the upper and lower centered around the hole of the fixing bolt 103, which takes the raw material load and the weight of the gutter 101, and removes the upper and lower portions near the bolt hole by the rectangular hole By increasing the cross-sectional coefficient, the cantilever-shaped integral structure can be effectively supported.

또한, 하부의 사각구멍은 복사열이 양옆으로 배출될 수 있도록 통로역할도 겸할 수 있다. 본 발명의 바람직한 실시예로 사각구멍을 예시하였으나 반드시 사각구멍으로 제작될 필요는 없으며 원형 기타 타원형 등의 형상으로도 제작이 가능하다.In addition, the lower rectangular hole may also serve as a passage so that radiant heat can be discharged to both sides. Although a square hole is illustrated as a preferred embodiment of the present invention, it is not necessarily manufactured as a square hole, and may be manufactured in a shape such as a circular oval or the like.

상기 프레임(100)은 고열개소에서 작용하중을 지지하기 위해 고온용 스테인레스강 후판으로 제작한다.The frame 100 is made of a stainless steel plate for high temperature in order to support the working load at high heat.

맹판(102)은 원료가 후방으로 낙광되지 않도록 차단하는 역할을 하고, 상기 프레임(100)에 홈이 끼워져 볼트로 체결되는 구조로 상기 프레임(100)의 후면의 간격을 유지시켜 주는 역할도 한다. 한편, 상부는 선회슈트가 수직투입시 스파우트(2)와 간섭되지 않도록 호의 형상으로 설계한다. The blind plate 102 serves to block the raw material from falling backwards, and also serves to maintain the distance between the rear of the frame 100 in a structure in which a groove is inserted into the frame 100 and fastened with a bolt. On the other hand, the upper portion is designed in the shape of an arc so that the swing chute does not interfere with the spout (2) during vertical injection.

고정볼트(103)는 고온고하중이 작용되는 개소에서 체결력을 유지하고, 체결작업 공간확보가 용이하도록 대형 소켓볼트를 사용한다. 한편, 외측은 복사열, 내측은 원료마모에 대해 손상이 적도록 소켓머리가 외측으로 향하도록 한다.Fixing bolt 103 is used to maintain the fastening force in the place where the high-temperature high load is applied, using a large socket bolt to facilitate the fastening work space. On the other hand, the outer side is radiant heat, the inner side so that the socket head to the outside so that there is little damage to the wear.

체결너트(104)는 상기 프레임(100)에 체결된 상기 홈통(101)의 구조를 유지 할 수 있도록 개개의 홈통단위로 다수개의 볼트가 조립되도록 한다. 또한, 상기 홈통(101) 및 상기 프레임(100)에 조립된 상기 체결너트(104)의 공차가 볼트와 볼트구멍의 공차보다 크게 함으로써 볼트에 전단력이 작용하지 않도록 하며, 내측은 원료에 의해 마모되지 않도록 내마모 육성용접을 한다.The fastening nut 104 allows a plurality of bolts to be assembled in individual trough units so as to maintain the structure of the trough 101 fastened to the frame 100. In addition, the tolerance of the fastening nut 104 assembled in the trough 101 and the frame 100 is larger than the tolerance between the bolt and the bolt hole so that the shear force is not applied to the bolt, and the inside is not worn by the raw material. Wear-welding nurture welding to prevent

고정봉(105, 106)은 상기 프레임(100)의 양측에 홈이 끼워져 볼트가 체결되는 구조로 상기 프레임(100)의 지지간격을 유지시키고, 상기 프레임(100)과 상기 홈통(101)의 볼트조립 구조를 견고히 해주는 역할을 한다. 외측 고정봉(105)은 고로 내부에서 작동하는 과정 중에 고로내벽과 간섭이 되지 않는 범위내에서 설치간격이 설정되고, 내측 고정봉(106)은 선회슈트로 원료가 수직 투입시 원료와 접촉되지 않도록 호의 형상을 가지고 있으며, 상기 내외측 고정봉(105,106)은 모두 원료와 고온의 상태에서 마모되지 않도록 내마모 육성용접을 한다.Fixing rods (105, 106) is a structure in which the grooves are inserted into both sides of the frame 100 to maintain the support interval of the frame 100, the bolt of the frame 100 and the gutter 101 It serves to solidify the assembly structure. The outer fixing rod 105 has an installation interval set within a range that does not interfere with the blast furnace inner wall during the operation in the blast furnace, and the inner fixing rod 106 is a turning chute so that the raw material is not in contact with the raw material during vertical input It has an arc shape, and the inner and outer fixing rods 105 and 106 are both wear resistant and welded to prevent wear in the state of raw materials and high temperature.

이상에서와 같이 본 발명에 따르면 프레임, 홈통 등을 각각 일체화시켜 제작하고, 전반적인 부품소재의 두께와 체결볼트 등의 크기를 증대시켜 고로 내부의 고온분위기에서 내열내마모성을 유지하고, 크리프변형(Creep Deformation) 및 조기부식열화를 방지하여 선회슈트의 수명을 연장함으로써 고로조업을 안정화시킬 수 있는 효과가 있다. 아울러 선회슈트의 지지구조부위와 원료통로부위의 기능을 분리하여 최적화를 도모할 수 있는 효과도 있다.As described above, according to the present invention, the frame, the trough, and the like are integrally manufactured, and the thickness of the overall component material and the size of the fastening bolt, etc. are increased to maintain the wear resistance in the high temperature atmosphere of the blast furnace, and creep deformation By preventing the deterioration of premature corrosion and early corrosion, it is possible to stabilize the blast furnace operation by extending the life of the swing chute. In addition, there is an effect that can be optimized by separating the functions of the support structure portion and the raw material passage portion of the swing chute.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 마련되는 본 발명의 기술사상이나 분야를 벗어나지 않는 한도내에서 본 발명이 다양하게 개조 및 변화될 수 있다는 것을 당업계에서 통상의 지식을 가진 자는 용이하게 알 수 있음을 밝혀두고자 한다.While the invention has been shown and described with respect to particular embodiments, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (4)

장입되는 원료를 안내하기 위한 홈통(Trough)(101);A trough 101 for guiding the charged raw material; 상기 홈통(101)을 좌우측에서 지지하기 위한 프레임(100);Frame 100 for supporting the gutter 101 from the left and right sides; 장입되는 원료가 상기 홈통(101)의 후방으로 낙광되지 않도록 차단하는 맹판(Blind Flange)(102); 및A blind flap 102 for blocking the charged raw material from falling down behind the trough 101; And 상기 홈통(101)을 좌우측에서 지지하는 상기 프레임(100)의 지지간격을 유지시키고, 상기 프레임(100)과 상기 홈통(101)의 조립구조를 견고히 하는 고정봉(Tie Bar)(105,106);을 포함하여 이루어지는 것을 특징으로 하는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트.Tie bars 105 and 106 to maintain the support interval of the frame 100 supporting the gutter 101 on the left and right, and to firmly assemble the assembly structure of the frame 100 and the gutter 101; Blast furnace chute chute provided with a trough frame assembly structure. 제1항에 있어서,The method of claim 1, 상기 홈통(101)은 고열개소에서 변형되지 않도록 다수개로 분할된 것을 특징으로 하는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트.The gutter 101 is a blast furnace chute chute provided with a gutter frame frame assembly structure, characterized in that divided into a plurality so as not to be deformed at high heat. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2, 상기 홈통(101)은 본체와 라이너를 통합하여 일체화되어 제작되는 것을 특징으로 하는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트.The gutter 101 is a blast furnace chute chute provided with a gutter and frame assembly structure, characterized in that the main body and the liner are integrally manufactured. 제1항에 있어서,The method of claim 1, 상기 프레임(100)은 외팔보(Cantilever) 구조로 매달린 선회슈트의 머리부와 본체부가 일체화된 것을 특징으로 하는 홈통과 프레임 조립식 구조를 구비한 고로선회슈트.The frame 100 is a blast furnace swing chute having a prefabricated frame assembly structure, characterized in that the head and the main body of the swing chute suspended in a cantilever structure.
KR1020060103390A 2006-10-24 2006-10-24 Trough and frame assembly structure possessing a distribution chute KR100862160B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101443791B1 (en) * 2013-06-26 2014-09-23 주식회사 포스코 Chute
US20200239235A1 (en) * 2019-01-30 2020-07-30 Cde Global Limited Chute for transferring flowable particulate material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230031401A (en) 2021-08-27 2023-03-07 용운중공업 주식회사 Charge transfer plate for blast furnace slewing chute

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Publication number Priority date Publication date Assignee Title
LU88396A1 (en) * 1993-08-25 1995-03-01 Wurth Paul Sa Distribution chute for bulk material
JPH0971803A (en) * 1995-09-01 1997-03-18 Sumitomo Metal Ind Ltd Heat-proof type distribution chute for bell-less blast furnace
JPH1046220A (en) 1996-08-02 1998-02-17 Sumitomo Metal Ind Ltd Distributing chute of blast furnace
JPH11131114A (en) 1997-10-27 1999-05-18 Nippon Steel Corp Swing chute of charging device into blast furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101443791B1 (en) * 2013-06-26 2014-09-23 주식회사 포스코 Chute
US20200239235A1 (en) * 2019-01-30 2020-07-30 Cde Global Limited Chute for transferring flowable particulate material

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