JP2010024041A - Iron-making material forward delivery method - Google Patents

Iron-making material forward delivery method Download PDF

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JP2010024041A
JP2010024041A JP2008191069A JP2008191069A JP2010024041A JP 2010024041 A JP2010024041 A JP 2010024041A JP 2008191069 A JP2008191069 A JP 2008191069A JP 2008191069 A JP2008191069 A JP 2008191069A JP 2010024041 A JP2010024041 A JP 2010024041A
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raw material
dust
belt conveyor
iron
steelmaking
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JP5272556B2 (en
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Nao Shibata
奈緒 柴田
Kenichi Danjo
賢一 檀上
Takuya Tomooka
卓也 友岡
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JFE Steel Corp
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JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an iron-making material forward delivery method for forward delivering iron-making material onto an on-ground belt conveyor without scattering therearound dust produced during forward delivery of the iron-making material. <P>SOLUTION: A dust scattering preventing hood 23 is provided on a moving carriage 13 of a moving machine for preventing the scattering of dust produced during forward delivery of the iron-making material, and a collecting duct is connected to the dust scattering preventing hood 23 for forward delivering the iron-making material onto the on-ground belt conveyor 19 while collecting the dust. A chute is set close to a material charge port formed in the dust scattering preventing hood 23 for forward delivering the iron-making material onto the on-ground belt conveyor. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、鉄鉱石、石炭などの製鉄原料を地上ベルトコンベヤ上に前送りする方法に関し、特に、製鉄所の原料ヤードに製鉄原料を積み付けたり、あるいは製鉄原料を原料ヤードから払い出したりするときに使用される移動機械を用いて製鉄原料を地上ベルトコンベヤ上に前送りする方法に関するものである。   TECHNICAL FIELD The present invention relates to a method for forward-feeding iron-making raw materials such as iron ore and coal onto a ground belt conveyor, particularly when iron-making raw materials are loaded into a raw-material yard of a steel mill or iron-making raw materials are discharged from the raw-material yard. The present invention relates to a method for pre-feeding a steelmaking raw material onto a ground belt conveyor using a moving machine used in the above.

一般に、製鉄所では、図５に示すような移動機械１１、すなわち製鉄所の原料ヤードに敷設された軌道１２上を移動する移動台車１３と、この移動台車１３上に旋回かつ俯仰可能に設けられたブームベルトコンベヤ１４と、このブームベルトコンベヤ１４の先端部に設けられたバケットホイール１５と、ブームベルトコンベヤ１４上に製鉄原料を投下するシュート１７を先端部に有するトリッパーベルトコンベヤ１６と、このトリッパーベルトコンベヤ１６を軌道１２に沿って動かす補助台車１８とを備えた移動機械１１とを用いて製鉄原料の積み付け、払い出し及び前送りを行っている。   In general, in a steel mill, a moving machine 11 as shown in FIG. 5, that is, a moving carriage 13 that moves on a track 12 laid in a raw material yard of the iron works, and a movable carriage 13 that can be turned and raised on the moving carriage 13 are provided. Boom belt conveyor 14, a bucket wheel 15 provided at the tip of the boom belt conveyor 14, a tripper belt conveyor 16 having a chute 17 at the tip for dropping the iron-making material onto the boom belt conveyor 14, and the tripper The steelmaking raw material is stacked, delivered and forwarded using a moving machine 11 having an auxiliary carriage 18 that moves the belt conveyor 16 along the track 12.

例えば、製鉄原料を原料ヤードに積み付けする場合は、図５に示す矢印２０のように、トリッパーベルトコンベヤ１６により搬送された製鉄原料をシュート１７およびブームベルトコンベヤ１４を経て原料ヤードに積み付けしている。
また、原料ヤードに積み付けされた製鉄原料を払い出す場合は、図６に示す矢印２１のように、バケットホイール１５により掻き取られた製鉄原料をブームベルトコンベヤ１４を経て原料ヤードから地上ベルトコンベヤ１９上に払い出している。
さらに、製鉄原料を原料ヤードに積み付けずに地上ベルトコンベヤ１９上に前送りする場合は、図７に示す矢印２２のように、製鉄原料をトリッパーベルトコンベヤ１６およびシュート１７を経て地上ベルトコンベヤ１９上に前送りしている。 For example, when iron-making raw materials are stacked in the raw material yard, the iron-making raw materials conveyed by the tripper belt conveyor 16 are stacked in the raw material yard via the chute 17 and the boom belt conveyor 14 as shown by an arrow 20 in FIG. ing.
Further, when the steelmaking raw material stacked in the raw material yard is paid out, the ironmaking raw material scraped off by the bucket wheel 15 is passed from the raw material yard to the ground belt conveyor via the boom belt conveyor 14 as shown by an arrow 21 in FIG. 19 is paid out.
Further, when the steelmaking raw material is forwarded onto the ground belt conveyor 19 without being stacked in the raw material yard, the steelmaking raw material passes through the tripper belt conveyor 16 and the chute 17 as shown by an arrow 22 in FIG. Forwarding up.

ところで、製鉄原料を原料ヤードに積み付けするときには、ブームベルトコンベヤ１４の先端部を地上もしくは積付原料に近づけて製鉄原料を積み付けしているため、製鉄原料の積み付け時に多量の粉塵が発生することはない。また、製鉄原料を原料ヤードから払い出すときも製鉄原料の積み付け時に原料同士が擦れ合って余分な原料粉が落とされたり、あるいはヤード備蓄中の製鉄原料が雨水や大気中の水分を含んでいたりするため、製鉄原料の払い出し時に多量の粉塵が発生することはない。しかし、製鉄原料を地上ベルトコンベヤ１９上に前送りするときには、製鉄原料をシュート１７から地上ベルトコンベヤ１９上に落下させて製鉄原料の前送りを行なっているため、多量の粉塵が発生して周囲に飛散する。   By the way, when iron-making raw materials are stacked in the raw material yard, since the iron-making raw materials are loaded with the tip of the boom belt conveyor 14 placed on the ground or close to the loading raw materials, a large amount of dust is generated when the iron-making raw materials are stacked. Never do. Also, when the steelmaking raw materials are paid out from the raw material yard, the raw materials rub against each other when the steelmaking raw materials are stacked, or excess raw material powder is dropped, or the ironmaking raw materials in the yard stockpile contain rainwater or atmospheric moisture. Therefore, a large amount of dust is not generated when the steelmaking raw material is dispensed. However, when the steelmaking raw material is forwarded onto the ground belt conveyor 19, the steelmaking raw material is dropped onto the ground belt conveyor 19 from the chute 17 to forward the steelmaking raw material. Scatter.

そこで、この問題を解決するため、移動機械の移動台車に粉塵飛散防止フードを地上ベルトコンベヤの上面を覆うように設けて粉塵の飛散を防止することや、特許文献１〜４に記載された技術を用いて粉塵の飛散を防止することが検討されている。
特許第３１８３９７２号公報 特許第２９１０５９５号公報 特開２００４−３３１３５６号公報 実開昭６３−１４４９３９号公報 Therefore, in order to solve this problem, the dust scatter prevention hood is provided on the movable carriage of the mobile machine so as to cover the upper surface of the ground belt conveyor to prevent dust scatter, or the techniques described in Patent Documents 1 to 4 It has been studied to prevent the scattering of dust by using slag.
Japanese Patent No. 3183972 Japanese Patent No. 2910595 JP 2004-331356 A Japanese Utility Model Publication No. 63-144939

しかしながら、移動機械の移動台車に粉塵飛散防止フードを設けただけでは、製鉄原料の前送り時に発生する粉塵の飛散を防止することは実際には困難であった。
また、特許文献１に記載された技術は原料を船から荷揚げする際に使用されるアンローダに集塵機を搭載して発塵を防止する技術、特許文献２に記載された技術は製鉄原料を船積みするときに使用される走行式シップローダに集塵装置を設けて発塵を防止する技術、特許文献３に記載された技術はばら物搬送用ベルトコンベアのベルト転向部に集塵装置を配置して発塵を防止する技術、特許文献４に記載された技術はブームコンベヤの乗継シュート部に防塵装置を設けて発塵を防止する技術であるから、製鉄原料の前送り時に発生する粉塵の飛散を特許文献１ないし特許文献４に記載された技術を適用して防止することは実際には困難であった。
本発明は上述した事情に鑑みてなされたものであり、製鉄原料の前送り時に発生する粉塵を周囲に飛散させることなく製鉄原料を地上ベルトコンベヤ上に前送りすることのできる製鉄原料の前送り方法を提供することを目的とするものである。 However, it is actually difficult to prevent dust scattering that occurs when the steelmaking raw material is fed forward only by providing a dust scattering prevention hood on the moving carriage of the mobile machine.
Further, the technique described in Patent Document 1 is a technique for preventing dust generation by mounting a dust collector on an unloader used when unloading raw materials from a ship, and the technique described in Patent Document 2 is for loading iron-making raw materials. A technique for preventing dust generation by providing a dust collector on a traveling ship loader that is sometimes used, the technique described in Patent Document 3 is to place a dust collector on the belt turning part of a belt conveyor for bulk goods Since the technology for preventing dust generation and the technology described in Patent Document 4 is a technology for preventing dust generation by providing a dustproof device on the connecting chute portion of the boom conveyor, scattering of dust generated during the forward feeding of the iron-making raw material In practice, it has been difficult to prevent these problems by applying the techniques described in Patent Documents 1 to 4.
The present invention has been made in view of the above-described circumstances, and forward feed of an iron making raw material that can forward the iron making raw material onto the ground belt conveyor without scattering dust generated during the forward feed of the iron making raw material to the surroundings. It is intended to provide a method.

上記課題を解決するために、請求項１記載の発明に係る製鉄原料の前送り方法は、製鉄所の原料ヤードに敷設された軌道上を移動する移動台車と、この移動台車上に旋回かつ俯仰可能に設けられたブームベルトコンベヤと、このブームベルトコンベヤの先端部に設けられたバケットホイールと、前記ブームベルトコンベヤ上に製鉄原料を投下するシュートを先端部に有するトリッパーベルトコンベヤとを備えた移動機械を用いて製鉄原料を地上ベルトコンベヤ上に前送りするに際して、前記製鉄原料の前送り時に発生する粉塵の飛散を前記移動台車に設けた粉塵飛散防止フードにより防止するとともに、前記粉塵飛散防止フードに接続された集塵ダクトにより前記粉塵を集塵しながら製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とするものである。   In order to solve the above-mentioned problem, a method for feeding forward an iron-making raw material according to the invention described in claim 1 includes a moving carriage that moves on a track laid in a raw-material yard of an ironworks, and a turn and elevation on the moving carriage. Boom belt conveyor provided in a movable manner, a bucket wheel provided at the tip of the boom belt conveyor, and a tripper belt conveyor having a chute for dropping iron-making raw material on the boom belt conveyor at the tip When the steelmaking raw material is forwarded onto the ground belt conveyor using a machine, the dust scattering prevention hood provided in the movable carriage prevents the dust scattering generated during the forward feeding of the ironmaking raw material and the dust scattering prevention hood. The steelmaking raw material is forwarded onto the ground belt conveyor while collecting the dust by the dust collection duct connected to It is intended to.

請求項２記載の発明に係る製鉄原料の前送り方法は、請求項１記載の製鉄原料の前送り方法において、前記シュートを前記粉塵飛散防止フードに形成された原料投入口に近づけて製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とするものである。
請求項３記載の発明に係る製鉄原料の前送り方法は、請求項１又は２記載の製鉄原料の前送り方法において、前記集塵ダクトを前記移動台車と別の場所に設置された集塵機に連通する集塵ダクトに接続して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とするものである。 The method for feeding forward the iron-making raw material according to claim 2 is the method for feeding forward the iron-making raw material according to claim 1, wherein the chute is brought close to the raw material inlet formed in the dust scattering prevention hood to It is characterized by being fed forward on the ground belt conveyor.
The method of forward feeding of iron making raw material according to the invention described in claim 3 is the method of forward feeding of iron making raw material according to claim 1 or 2, wherein the dust collecting duct communicates with a dust collector installed at a location different from the movable carriage. The steelmaking raw material is forward-fed onto a ground belt conveyor by connecting to a dust collecting duct.

請求項４記載の発明に係る製鉄原料の前送り方法は、請求項３記載の製鉄原料の前送り方法において、前記集塵機に連通する集塵ダクトの開口端部に設けられた集塵機側ダクトフランジと複数のローラを介して係合するフード側ダクトフランジを前記粉塵飛散防止フードに接続された集塵ダクトに付設して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とするものである。
請求項５記載の発明に係る製鉄原料の前送り方法は、請求項４記載の製鉄原料の前送り方法において、前記フード側ダクトフランジおよび前記集塵機側ダクトフランジの移動機械移動方向両端部に互いに離間する方向に傾斜するテーパ部を付設して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とするものである。 A method for forward feeding an ironmaking raw material according to an invention described in claim 4 is the method of forward feeding an ironmaking raw material according to claim 3, wherein a dust collector side duct flange provided at an opening end of a dust collection duct communicating with the dust collector; A hood side duct flange engaged through a plurality of rollers is attached to a dust collection duct connected to the dust scattering prevention hood, and the iron-making raw material is forwarded onto the ground belt conveyor.
The method for feeding forward the iron making raw material according to claim 5 is the method for feeding forward the iron making raw material according to claim 4, wherein the hood side duct flange and the dust collector side duct flange are spaced apart from each other in the moving machine moving direction. A taper portion that is inclined in the direction in which the steelmaking process is performed is used to feed the steelmaking raw material forward onto the ground belt conveyor.

請求項１記載の発明に係る製鉄原料の前送り方法によると、粉塵飛散防止フード内で発生した粉塵が粉塵飛散防止フードに接続された集塵ダクトにより集塵されるので、移動機械の移動台車に設けた粉塵飛散防止フードのみにより粉塵の飛散を防止する場合と比較して、製鉄原料の前送り時に発生する粉塵を周囲に飛散させることなく製鉄原料を地上ベルトコンベヤ上に前送りすることができる。   According to the iron feed raw material forward feed method according to the first aspect of the invention, the dust generated in the dust scatter prevention hood is collected by the dust collection duct connected to the dust scatter prevention hood. Compared with the case where dust scattering is prevented only by the dust scattering prevention hood provided in the case, the steelmaking raw material can be forwarded on the ground belt conveyor without scattering the dust generated during the forward feeding of the steelmaking raw material. it can.

請求項２記載の発明に係る製鉄原料の前送り方法によると、シュートを粉塵飛散防止フードに形成された原料投入口に近づけて製鉄原料を地上ベルトコンベヤ上に前送りすることにより、移動台車上に集塵機を設置する必要がないので、集塵機を設置するスペースを移動台車上に確保できない場合でも製鉄原料の前送り時に多量の粉塵が飛散することを防止することができる。
請求項３記載の発明に係る製鉄原料の前送り方法によると、シュートを粉塵飛散防止フードの原料投入口に近づけて製鉄原料を地上ベルトコンベヤ上に前送りすることにより、製鉄原料の前送り時に発生する粉塵の発生量が減少するので、製鉄原料の前送り時に多量の粉塵が飛散することを防止することができる。 According to the iron feed raw material feed method according to the invention described in claim 2, the chute is brought close to the raw material inlet formed in the dust scatter prevention hood, and the steel feed raw material is forward fed onto the ground belt conveyor. Since it is not necessary to install a dust collector, it is possible to prevent a large amount of dust from being scattered during the forward feeding of the iron-making raw material even when the space for installing the dust collector cannot be secured on the moving carriage.
According to the iron feed raw material feed method according to the invention of claim 3, when the steel feed raw material is forwarded by bringing the chute close to the raw material inlet of the dust scattering prevention hood and the steel feed raw material is forwarded onto the ground belt conveyor. Since the amount of generated dust is reduced, it is possible to prevent a large amount of dust from being scattered during the forward feeding of the iron-making raw material.

請求項４記載の発明に係る製鉄原料の前送り方法によると、集塵機に連通する集塵ダクトの開口端部に設けられた集塵機側ダクトフランジと複数のローラを介して係合するフード側ダクトフランジを粉塵飛散防止フードに接続された集塵ダクトに付設して製鉄原料を地上ベルトコンベヤ上に前送りすることにより、軌道や車輪の偏磨耗により移動台車に蛇行が生じてもフード側集塵ダクトの開口端部を集塵機側集塵ダクトの開口端部に合致させることができ、これにより、製鉄原料の前送り時に発生した粉塵を確実に集塵することができる。
請求項５記載の発明に係る製鉄原料の前送り方法によると、フード側ダクトフランジおよび集塵機側ダクトフランジの移動機械移動方向両端部に互いに離間する方向に傾斜するテーパ部を付設して製鉄原料を地上ベルトコンベヤ上に前送りすることにより、移動台車の蛇行による集塵ダクトの破損を防止することができる。 According to the iron feed raw material feed method according to the invention of claim 4, the hood side duct flange engaged with the dust collector side duct flange provided at the opening end of the dust collection duct communicating with the dust collector via a plurality of rollers Is attached to the dust collection duct connected to the dust scatter prevention hood, and the steelmaking raw material is fed forward onto the ground belt conveyor, so that the hood side dust collection duct can be used even if the moving carriage wobbles due to uneven wear of the track and wheels. The opening end of the dust collector can be matched with the opening end of the dust collector-side dust collecting duct, whereby dust generated during the forward feeding of the iron-making raw material can be reliably collected.
According to the forward feed method of the steelmaking raw material according to the invention described in claim 5, the steelmaking raw material is provided by attaching tapered portions inclined in directions away from each other at both ends of the moving machine moving direction of the hood side duct flange and the dust collector side duct flange. By feeding forward onto the ground belt conveyor, it is possible to prevent damage to the dust collection duct due to meandering of the movable carriage.

以下、本発明に係る製鉄原料の前送り方法について図１〜図５を参照して説明する。
本発明の一実施形態に係る製鉄原料の前送り方法に適用される移動機械の移動台車を図１に示す。同図に示されるように、移動機械の移動台車１３には、製鉄原料の前送り時に発生する粉塵の飛散を防止する粉塵飛散防止フード２３が地上ベルトコンベヤ１９の上面を覆うように設けられている。 Hereinafter, the method for forward feeding the iron-making raw material according to the present invention will be described with reference to FIGS.
FIG. 1 shows a moving carriage of a moving machine applied to a method for forward feeding of steelmaking raw materials according to an embodiment of the present invention. As shown in the figure, the moving carriage 13 of the moving machine is provided with a dust scattering prevention hood 23 that covers the upper surface of the ground belt conveyor 19 to prevent dust scattering generated when the steelmaking raw material is fed forward. Yes.

粉塵飛散防止フード２３は原料投入口２４，２５を有しており、これらの原料投入口２４，２５のうち粉塵飛散防止フード２３の上面前部に形成された原料投入口２４には、原料ヤードから払い出された製鉄原料がブームベルトコンベヤ１４から投入されるようになっている。
原料投入口２５は粉塵飛散防止フード２３の上面後部に形成されており、この原料投入口２５には、トリッパーベルトコンベヤ１６から地上ベルトコンベヤ１９上に前送りされる製鉄原料が投入されるようになっている。 The dust scattering prevention hood 23 has raw material inlets 24 and 25, and of these raw material inlets 24 and 25, the raw material inlet 24 formed in the upper front portion of the dust scattering prevention hood 23 has a raw material yard. The iron-making raw material paid out from is supplied from the boom belt conveyor 14.
The raw material inlet 25 is formed in the upper rear portion of the dust scattering prevention hood 23 so that the iron-making raw material fed forward from the tripper belt conveyor 16 onto the ground belt conveyor 19 is input into the raw material inlet 25. It has become.

粉塵飛散防止フード２３には、図２に示すように、集塵ダクト２６の一端が接続されている。この集塵ダクト２６（以下「フード側集塵ダクト２６」という）は移動台車１３に搭載されており、移動台車１３と別の場所には、製鉄原料の前送り時に集塵ダクト２８を介してフード側集塵ダクト２６と接続される集塵機２７が設置されている。
集塵ダクト２８（以下「集塵機側集塵ダクト２８」という）は電動ダンパ２９を介して集塵機２７に連通しており、集塵機側集塵ダクト２８の開口端部には、図３に示すように、フード側集塵ダクト２６の開口端部に設けられたフード側ダクトフランジ３０と複数のローラ３１を介して係合する集塵機側ダクトフランジ３２が設けられている。 As shown in FIG. 2, one end of a dust collection duct 26 is connected to the dust scattering prevention hood 23. This dust collection duct 26 (hereinafter referred to as “hood-side dust collection duct 26”) is mounted on the movable carriage 13, and is separated from the movable carriage 13 via the dust collection duct 28 when the steelmaking raw material is forwarded. A dust collector 27 connected to the hood-side dust collection duct 26 is installed.
A dust collecting duct 28 (hereinafter referred to as “dust collector side dust collecting duct 28”) communicates with the dust collector 27 via an electric damper 29, and an opening end of the dust collector side dust collecting duct 28 is as shown in FIG. A dust collector side duct flange 32 that engages with a hood side duct flange 30 provided at the opening end of the hood side dust collection duct 26 via a plurality of rollers 31 is provided.

フード側ダクトフランジ３０および集塵機側ダクトフランジ３２の移動機械移動方向両端部には、互いに離間する方向に傾斜するテーパ部３３が設けられている。
なお、移動機械の移動限界位置には移動限界リミットスイッチ３４（図１参照）が設けられ、この移動限界リミットスイッチ３４に移動台車１３が当接することによって移動台車１３の移動が自動的に停止するようになっている。また、フード側集塵ダクト２６の開口端部と集塵機側集塵ダクト２８の開口端部とが合致する位置には位置合致リミットスイッチ３５（図１参照）が設けられ、この位置合致リミットスイッチ３５に移動台車１３が当接することによって移動台車１３の移動が自動的に停止するようになっている。 At both ends of the hood side duct flange 30 and the dust collector side duct flange 32 in the moving machine moving direction, tapered portions 33 that are inclined in directions away from each other are provided.
A movement limit limit switch 34 (see FIG. 1) is provided at the movement limit position of the mobile machine, and the movement of the movement carriage 13 is automatically stopped when the movement carriage 13 comes into contact with the movement limit limit switch 34. It is like that. A position matching limit switch 35 (see FIG. 1) is provided at a position where the opening end of the hood side dust collecting duct 26 and the opening end of the dust collector side dust collecting duct 28 are matched. The movement of the movable carriage 13 is automatically stopped when the movable carriage 13 comes into contact with the vehicle.

このような移動機械を用いて製鉄原料を地上ベルトコンベヤ１９上に前送りする場合は、まず、移動台車１３を移動限界リミットスイッチ３４が作動する位置まで移動させる。そうすると、移動台車１３が移動機械の移動限界位置で自動的に停止し、その後、位置合致リミットスイッチ３５が作動する位置まで移動台車１３を移動させると、移動台車１３の移動が自動的に停止すると共に、フード側集塵ダクト２６の開口端部が集塵機側集塵ダクト２８の開口端部と合致する。   When the steelmaking raw material is forwarded onto the ground belt conveyor 19 using such a moving machine, first, the moving carriage 13 is moved to a position where the movement limit limit switch 34 is operated. Then, the moving carriage 13 automatically stops at the movement limit position of the moving machine. After that, when the moving carriage 13 is moved to a position where the position matching limit switch 35 is activated, the movement of the moving carriage 13 is automatically stopped. At the same time, the opening end of the hood-side dust collection duct 26 matches the opening end of the dust collector-side dust collection duct 28.

フード側集塵ダクト２６の開口端部が集塵機側集塵ダクト２８の開口端部と合致したならば、図５に示す矢印３６のように、トリッパーベルトコンベヤ１６のシュート１７を粉塵飛散防止フード２３の原料投入口２５に近づけた後、トリッパーベルトコンベヤ１６のシュート１７から粉塵飛散防止フード２３の原料投入口２５に製鉄原料を投入して製鉄原料を地上ベルトコンベヤ１９上に前送りする。このとき、粉塵飛散防止フード２３内で発生した粉塵は粉塵飛散防止フード２３に接続されたフード側集塵ダクト２６により集塵され、フード側集塵ダクト２６により集塵された粉塵は集塵機側集塵ダクト２８および電動ダンパ２９を通って集塵機２７に送られる。   If the opening end of the hood-side dust collection duct 26 matches the opening end of the dust collector-side dust collection duct 28, the chute 17 of the tripper belt conveyor 16 is attached to the dust scattering prevention hood 23 as indicated by an arrow 36 shown in FIG. Then, the iron-making material is fed from the chute 17 of the tripper belt conveyor 16 to the material-feeding port 25 of the dust scattering prevention hood 23 to feed the iron-making material onto the ground belt conveyor 19. At this time, the dust generated in the dust scattering prevention hood 23 is collected by the hood side dust collection duct 26 connected to the dust scattering prevention hood 23, and the dust collected by the hood side dust collection duct 26 is collected by the dust collector side collection. It is sent to the dust collector 27 through the dust duct 28 and the electric damper 29.

したがって、上述した一実施形態では、移動台車１３に設けた粉塵飛散防止フード２３のみにより粉塵の飛散を防止する場合と比較して、製鉄原料の前送り時に発生する粉塵を周囲に飛散させることなく製鉄原料を地上ベルトコンベヤ１９上に前送りすることができる。
また、上述した一実施形態のように、トリッパーベルトコンベヤ１６のシュート１７を粉塵飛散防止フード２３の原料投入口２５に近づけて製鉄原料を地上ベルトコンベヤ１９上に前送りすることにより、製鉄原料の前送り時に発生する粉塵の発生量が減少するので、製鉄原料の前送り時に多量の粉塵が飛散することを防止することができる。 Therefore, in one embodiment mentioned above, compared with the case where dust scattering is prevented only by the dust scattering prevention hood 23 provided on the movable carriage 13, the dust generated during the forward feeding of the iron-making raw material is not scattered around. The iron-making raw material can be forwarded onto the ground belt conveyor 19.
Further, as in the above-described embodiment, the chute 17 of the tripper belt conveyor 16 is brought close to the raw material inlet 25 of the dust scattering prevention hood 23 and the steelmaking raw material is forwarded onto the ground belt conveyor 19, so that Since the amount of dust generated at the time of forward feeding is reduced, it is possible to prevent a large amount of dust from being scattered at the time of forward feeding of the steelmaking raw material.

さら、製鉄原料の前送り時にフード側集塵ダクト２６を移動台車１３と別の場所に設置された集塵機２７に連通する集塵機側集塵ダクト２８に接続して製鉄原料を地上ベルトコンベヤ１９上に前送りすることにより、移動台車１３上に集塵機２７を設置する必要がないので、集塵機２７を設置するスペースを移動台車１３上に確保できない場合でも製鉄原料の前送り時に多量の粉塵が飛散することを防止することができる。   In addition, the hood-side dust collection duct 26 is connected to a dust collector-side dust collection duct 28 communicating with a dust collector 27 installed at a different location from the movable carriage 13 when the iron-making material is fed forward, and the iron-making material is placed on the ground belt conveyor 19. Since it is not necessary to install the dust collector 27 on the moving carriage 13 by forward feeding, a large amount of dust is scattered during the forward feeding of the iron-making raw material even when the space for installing the dust collector 27 cannot be secured on the moving carriage 13. Can be prevented.

また、フード側集塵ダクト２６の開口端部に設けられたフード側ダクトフランジ３０と複数のローラ３１を介して係合する集塵機側ダクトフランジ３２を集塵機側集塵ダクト２８の開口端部に付設して製鉄原料を地上ベルトコンベヤ１９上に前送りすることにより、軌道や車輪の偏磨耗により移動台車１３に蛇行が生じてもフード側集塵ダクト２６の開口端部を集塵機側集塵ダクト２８の開口端部に合致させることができ、これにより、製鉄原料の前送り時に発生した粉塵を確実に集塵することができる。   Further, a dust collector side duct flange 32 that is engaged with a hood side duct flange 30 provided at the opening end portion of the hood side dust collection duct 26 via a plurality of rollers 31 is attached to the opening end portion of the dust collector side dust collection duct 28. Then, the steelmaking raw material is forwarded onto the ground belt conveyor 19 so that the open end of the hood-side dust collection duct 26 is connected to the dust collector-side dust collection duct 28 even if the moving carriage 13 is meandered due to uneven wear of the tracks and wheels. Thus, the dust generated during the forward feeding of the iron-making raw material can be reliably collected.

さらに、フード側ダクトフランジ３０および集塵機側ダクトフランジ３２の移動機械移動方向両端部に互いに離間する方向に傾斜するテーパ部３３を付設して製鉄原料を地上ベルトコンベヤ１９上に前送りすることにより、移動台車１３の蛇行による集塵ダクト２６，２５の破損を防止することができる。
なお、上述した本発明の一実施形態では、ローラ３１をフード側ダクトフランジ３０に設けた場合を例示したが、ローラ３１を集塵機側ダクトフランジ３２に設けてもよい。 Furthermore, by attaching the taper part 33 which inclines in the direction which mutually separates to the moving machine movement direction both ends of the hood side duct flange 30 and the dust collector side duct flange 32, and feeds the steelmaking raw material on the ground belt conveyor 19, It is possible to prevent the dust collection ducts 26 and 25 from being damaged by the meandering of the movable carriage 13.
In addition, in one Embodiment of this invention mentioned above, although the case where the roller 31 was provided in the hood side duct flange 30 was illustrated, you may provide the roller 31 in the dust collector side duct flange 32. FIG.

本発明の一実施形態に係る製鉄原料の前送り方法に適用される移動機械の移動台車を示す側面図である。It is a side view which shows the mobile trolley | bogie of the mobile machine applied to the method of forward feeding of the iron-making raw material which concerns on one Embodiment of this invention. 図１のＡ−Ａ断面を示す図である。It is a figure which shows the AA cross section of FIG. 図２におけるＢ部の詳細構成を示す図である。It is a figure which shows the detailed structure of the B section in FIG. 本発明の一実施形態に係る製鉄原料の前送り方法を説明するための図である。It is a figure for demonstrating the forward feeding method of the iron-making raw material which concerns on one Embodiment of this invention. 製鉄原料を移動機械により原料ヤードに積み付ける場合の製鉄原料の流れを示す図である。It is a figure which shows the flow of the iron-making raw material at the time of stacking a steel-making raw material on a raw material yard with a moving machine. 製鉄原料を移動機械により原料ヤードから払い出す場合の製鉄原料の流れを示す図である。It is a figure which shows the flow of the iron-making raw material when paying out a steel-making raw material from a raw material yard with a moving machine. 製鉄原料を移動機械により地上ベルトコンベヤ上に前送りする場合の従来方法を示す図である。It is a figure which shows the conventional method in the case of pre-feeding a steelmaking raw material on a ground belt conveyor with a moving machine.

符号の説明Explanation of symbols

１１ 移動機械
１２ 軌道
１３ 移動台車
１４ ブームベルトコンベヤ
１５ バケットホイール
１６ トリッパーベルトコンベヤ
１７ シュート
１８ 補助台車
１９ 地上ベルトコンベヤ
２３ 粉塵飛散防止フード
２４，２５ 原料投入口
２６，２８ 集塵ダクト
２７ 集塵機
２９ 電動ダンパ
３０ フード側ダクトフランジ
３１ ローラ
３２ 集塵機側ダクトフランジ
３３ テーパ部
３４ 移動限界リミットスイッチ
３５ 位置合致リミットスイッチ DESCRIPTION OF SYMBOLS 11 Moving machine 12 Track | truck 13 Moving trolley 14 Boom belt conveyor 15 Bucket wheel 16 Tripper belt conveyor 17 Chute 18 Auxiliary trolley 19 Ground belt conveyor 23 Dust scattering prevention hood 24, 25 Raw material inlet 26, 28 Dust collection duct 27 Dust collector 29 Electric damper 30 Hood side duct flange 31 Roller 32 Dust collector side duct flange 33 Tapered part 34 Movement limit switch 35 Position match limit switch

Claims (5)

製鉄所の原料ヤードに敷設された軌道上を移動する移動台車と、この移動台車上に旋回かつ俯仰可能に設けられたブームベルトコンベヤと、このブームベルトコンベヤの先端部に設けられたバケットホイールと、前記ブームベルトコンベヤ上に製鉄原料を投下するシュートを先端部に有するトリッパーベルトコンベヤとを備えた移動機械を用いて製鉄原料を地上ベルトコンベヤ上に前送りするに際して、
前記製鉄原料の前送り時に発生する粉塵の飛散を前記移動台車に設けた粉塵飛散防止フードにより防止するとともに、前記粉塵飛散防止フードに接続された集塵ダクトにより前記粉塵を集塵しながら製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とする製鉄原料の前送り方法。 A moving carriage that moves on a track laid on a raw material yard of a steel mill, a boom belt conveyor that can be swung and raised on the moving carriage, and a bucket wheel that is provided at the tip of the boom belt conveyor, When the steelmaking raw material is forwarded onto the ground belt conveyor using a moving machine having a tripper belt conveyor having a chute for dropping the ironmaking raw material on the boom belt conveyor at the tip,
The steelmaking raw material while preventing dust scattering generated during forward feeding of the ironmaking raw material by a dust scattering prevention hood provided on the movable carriage and collecting the dust by a dust collection duct connected to the dust scattering prevention hood. Is a method of forward feeding a steelmaking raw material, characterized in that it is forwardly fed onto a ground belt conveyor. 前記シュートを前記粉塵飛散防止フードに形成された原料投入口に近づけて製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とする請求項１記載の製鉄原料の前送り方法。   2. The method of forward feeding an iron-making raw material according to claim 1, wherein the iron-making raw material is forward-fed onto a ground belt conveyor by bringing the chute close to a raw material inlet formed in the dust scatter prevention hood. 前記集塵ダクトを前記移動台車と別の場所に設置された集塵機に連通する集塵ダクトに接続して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とする請求項１又は２記載の製鉄原料の前送り方法。   3. The ironmaking raw material is forwarded onto a ground belt conveyor by connecting the dust collection duct to a dust collection duct communicating with a dust collector installed at a different location from the mobile carriage. 4. The forward feed method for steelmaking materials. 前記集塵機に連通する集塵ダクトの開口端部に設けられた集塵機側ダクトフランジと複数のローラを介して係合するフード側ダクトフランジを前記粉塵飛散防止フードに接続された集塵ダクトに付設して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とする請求項３記載の製鉄原料の前送り方法。   A dust collector duct flange connected to the dust collector duct connected to the dust scattering prevention hood is attached to a dust collector duct flange provided at the opening end of the dust collector duct communicating with the dust collector via a plurality of rollers. 4. The method of forward feeding steelmaking raw material according to claim 3, wherein the steelmaking raw material is forwardly fed onto a ground belt conveyor. 前記フード側ダクトフランジおよび前記集塵機側ダクトフランジの移動機械移動方向両端部に互いに離間する方向に傾斜するテーパ部を付設して製鉄原料を地上ベルトコンベヤ上に前送りすることを特徴とする請求項４記載の製鉄原料の前送り方法。   The steelmaking raw material is forward-fed onto the ground belt conveyor by attaching tapered portions inclined in directions away from each other at both ends in the moving machine movement direction of the hood side duct flange and the dust collector side duct flange. 4. A method for forward feeding the steelmaking raw material according to 4.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102556684A (en) * 2010-12-30 2012-07-11 中钢集团工程设计研究院有限公司 Lime conveying system
CN102862826A (en) * 2012-10-18 2013-01-09 中煤科工集团武汉设计研究院 Ground coal supply device of long-distance pipeline coal slurry preparing system
JP2013094806A (en) * 2011-10-31 2013-05-20 Jfe Steel Corp Dust collecting duct and mobile equipment including the same
KR101359408B1 (en) 2011-12-28 2014-02-07 주식회사 포스코 Apparatus for collecting dust in hopper
CN108840113A (en) * 2018-07-13 2018-11-20 安徽云龙粮机有限公司 A kind of unloading binary channels grain scraper
CN113467361A (en) * 2021-06-18 2021-10-01 安徽长江钢铁股份有限公司 Remote control automatic discharging method for blast furnace ore tank feeding trolley
CN114162636A (en) * 2021-12-22 2022-03-11 中国矿业大学 Device suitable for ore deposit groove removes dust

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366678A (en) * 1976-11-25 1978-06-14 Kobe Steel Ltd Cargo gear arrangement for powder material
JPS63144939U (en) * 1987-03-12 1988-09-26
JPH0526931U (en) * 1991-09-20 1993-04-06 三菱重工業株式会社 Dust collector for grain transportation equipment
JP2000136027A (en) * 1998-10-30 2000-05-16 Ishikawajima Harima Heavy Ind Co Ltd Reclaimer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366678A (en) * 1976-11-25 1978-06-14 Kobe Steel Ltd Cargo gear arrangement for powder material
JPS63144939U (en) * 1987-03-12 1988-09-26
JPH0526931U (en) * 1991-09-20 1993-04-06 三菱重工業株式会社 Dust collector for grain transportation equipment
JP2000136027A (en) * 1998-10-30 2000-05-16 Ishikawajima Harima Heavy Ind Co Ltd Reclaimer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102556684A (en) * 2010-12-30 2012-07-11 中钢集团工程设计研究院有限公司 Lime conveying system
JP2013094806A (en) * 2011-10-31 2013-05-20 Jfe Steel Corp Dust collecting duct and mobile equipment including the same
KR101359408B1 (en) 2011-12-28 2014-02-07 주식회사 포스코 Apparatus for collecting dust in hopper
CN102862826A (en) * 2012-10-18 2013-01-09 中煤科工集团武汉设计研究院 Ground coal supply device of long-distance pipeline coal slurry preparing system
CN108840113A (en) * 2018-07-13 2018-11-20 安徽云龙粮机有限公司 A kind of unloading binary channels grain scraper
CN108840113B (en) * 2018-07-13 2023-10-31 安徽云龙粮机有限公司 Double-channel grain scraping machine for unloading grains
CN113467361A (en) * 2021-06-18 2021-10-01 安徽长江钢铁股份有限公司 Remote control automatic discharging method for blast furnace ore tank feeding trolley
CN114162636A (en) * 2021-12-22 2022-03-11 中国矿业大学 Device suitable for ore deposit groove removes dust

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