JP2015051860A - Dust collection tripper and iron-making material charging method - Google Patents
Dust collection tripper and iron-making material charging method Download PDFInfo
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- JP2015051860A JP2015051860A JP2013185723A JP2013185723A JP2015051860A JP 2015051860 A JP2015051860 A JP 2015051860A JP 2013185723 A JP2013185723 A JP 2013185723A JP 2013185723 A JP2013185723 A JP 2013185723A JP 2015051860 A JP2015051860 A JP 2015051860A
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Abstract
Description
本発明は、製鉄原料をベルトコンベアから原料槽に装入する際に用いるトリッパーと、該トリッパーを用いて、製鉄原料を原料槽に装入する方法に関するものである。 The present invention relates to a tripper used when charging iron-making raw materials into a raw material tank from a belt conveyor, and a method of charging iron-making raw materials into the raw material tank using the tripper.
製鉄原料は、屋外貯蔵場から、必要に応じて、ベルトコンベアで原料貯蔵設備へ搬送され、トリッパーを介して原料槽に装入される。この時、粉塵が発生するので、原料貯蔵設備内に配設した集塵装置で集塵しながら、製鉄原料を原料槽に装入する。粉塵の集塵は効率よく継続的に行う必要があり、これまで、集塵方法又は集塵装置がいくつか提案されている(特許文献1〜4、参照)。 The steelmaking raw material is conveyed from an outdoor storage place to a raw material storage facility by a belt conveyor as needed, and is charged into a raw material tank via a tripper. Since dust is generated at this time, the iron-making raw material is charged into the raw material tank while collecting the dust with the dust collector disposed in the raw material storage facility. Dust collection must be performed efficiently and continuously, and several dust collection methods or dust collection apparatuses have been proposed so far (see Patent Documents 1 to 4).
図1に、従来の原料貯蔵設備の一態様を示す。原料貯蔵設備5内に配置された原料槽7の上部に、トリッパー1の走行軌道(図示なし)が平行に3列配置されている。ベルトコンベア(図示なし)で搬送されてきた製鉄原料は、トリッパー1から、シュート2を経て原料槽7内に装入される。なお、ベルトコンベアは、製鉄原料をトリッパー1に供給した後、ベルトコンベア6となって循環する。
FIG. 1 shows an embodiment of a conventional raw material storage facility. Three rows of traveling tracks (not shown) of the tripper 1 are arranged in parallel on the upper part of the raw material tank 7 arranged in the raw
製鉄原料を、トリッパー1からシュート2を経て原料槽7内に装入する際、粉塵が発生する。発生した粉塵を集塵するために、トリッパー1の上部に集塵ダクト4aが設けられている。集塵ダクト4aは、原料貯蔵設備5の上部空間に、トリッパー1の走行軌道に沿って配置された集塵本管4の上を走行する移動式ダクト接続管3に接続されている。
When the iron-making raw material is charged into the raw material tank 7 from the tripper 1 through the
即ち、集塵ダクト4aで集塵した粉塵は、トリッパー1の走行に連動して集塵本管4の上を走行する移動式ダクト接続管3を経て、集塵本管4に流入する。
That is, the dust collected by the dust collection duct 4 a flows into the dust collection
従来の原料貯蔵設備(図1、参照)においては、集塵本管の上部(移動式ダクト接続管走行面)を摺動するゴムシート移動式ダクト接続管に取り付けて封止して、集塵本管と移動式ダクト接続管の間の気密を維持している。また、製鉄原料を原料槽に装入するシュートと原料槽の間の気密は、原料槽上部を摺動するゴムシールをシュートに取り付けて維持している。 In a conventional raw material storage facility (see FIG. 1), the upper part of the dust collecting main pipe (moving duct connecting pipe running surface) is attached to a sliding rubber sheet moving duct connecting pipe and sealed to collect dust. Airtightness is maintained between the main pipe and the mobile duct connection pipe. Further, the airtightness between the chute for charging the raw material tank into the raw material tank and the raw material tank is maintained by attaching a rubber seal that slides on the upper part of the raw material tank to the chute.
しかし、ゴムシートやゴムシールは、摺動とともに磨耗するし、また、摺動安定性に欠けるので、ゴムシートやゴムシールの摺動を、常時、円滑に行うことは困難である。ゴムシートやゴムシールの摺動の不安定は、集塵効率の低下や、トリッパーの走行不能の原因となる。 However, since the rubber sheet and the rubber seal are worn with sliding and lack the sliding stability, it is difficult to always slide the rubber sheet and the rubber seal smoothly. Unstable sliding of the rubber sheet or rubber seal causes a decrease in dust collection efficiency and inability to run the tripper.
そして、ゴムシートやゴムシールの摺動の不安定は、トリッパーの走行距離が長くなるほど顕著になるので、原料貯蔵設備を拡張するような場合、既存の集塵設備の延長増設では対応し得ないのが実情である。 And the instability of rubber sheet and rubber seal sliding becomes more prominent as the tripper travels longer, so when expanding raw material storage facilities, extension of existing dust collection facilities cannot be supported. Is the actual situation.
そこで、本発明は、トリッパーの走行を阻害しない新規な集塵手段を提供するとともに、該集塵手段を用いて効率よく集塵し、製鉄原料を原料槽へ装入する方法を提供することを目的とする。 Therefore, the present invention provides a novel dust collecting means that does not hinder tripper travel, and also provides a method of efficiently collecting dust using the dust collecting means and charging the iron-making raw material into the raw material tank. Objective.
本発明者らは、トリッパーの走行を阻害せず、かつ、製鉄原料の原料槽への装入時、高効率で集塵できる集塵手段について鋭意検討した。その結果、トリッパーと集塵手段を一体化すると、トリッパーを迅速に製鉄原料の装入位置に移動させることができ、かつ、高効率で集塵しつつ、製鉄原料を原料槽に装入できることを見いだした。 The inventors of the present invention have intensively studied dust collection means that do not impede travel of the tripper and can collect dust with high efficiency when charging the raw material tank into the raw material tank. As a result, when the tripper and dust collecting means are integrated, the tripper can be quickly moved to the steelmaking raw material charging position, and the steelmaking raw material can be charged into the raw material tank while collecting dust with high efficiency. I found it.
本発明は、上記知見に基づいてなされたもので、その要旨は以下のとおりである。 This invention was made | formed based on the said knowledge, and the summary is as follows.
(1)製鉄原料をベルトコンベアから原料槽へ装入する時に用いるトリッパーに、集塵機を一体的に設けたことを特徴とする集塵トリッパー。 (1) A dust collection tripper characterized in that a dust collector is integrally provided in a tripper used when charging iron-making raw materials from a belt conveyor to a raw material tank.
(2)前記集塵機が、トリッパーに連結した台車に搭載されていることを特徴とする前記(1)に記載の集塵トリッパー。 (2) The dust collector tripper according to (1), wherein the dust collector is mounted on a cart connected to the tripper.
(3)前記集塵機が、集塵で堆積した集塵堆積物を原料槽に排出する排出口を備えることを特徴とする前記(1)又は(2)に記載の集塵トリッパー。 (3) The dust collector tripper according to (1) or (2), wherein the dust collector includes a discharge port for discharging the dust collection deposit accumulated by dust collection to the raw material tank.
(4)製鉄原料をベルトコンベアから原料槽へ装入する方法において、前記(1)〜(3)のいずれかに記載の集塵トリッパーを用い、集塵しつつ製鉄原料を原料槽へ装入することを特徴とする製鉄原料の装入方法。 (4) In the method of charging the steelmaking raw material into the raw material tank from the belt conveyor, the ironmaking raw material is charged into the raw material tank while collecting the dust using the dust collection tripper according to any one of (1) to (3). A method of charging a steelmaking raw material, characterized by:
(5)前記集塵で堆積した集塵堆積物を原料槽に排出することを特徴とする前記(4)に記載の製鉄原料の装入方法。 (5) The method for charging an iron-making raw material according to (4), wherein the dust collection deposit deposited by the dust collection is discharged to a raw material tank.
本発明によれば、トリッパーと集塵手段が一体となっているので、原料貯蔵設備内に、大規模・大容量の集塵装置を設ける必要がない。また、本発明によれば、トリッパーと集塵手段が一体となって、製鉄原料の装入位置に迅速に移動し、かつ、高効率で集塵しつつ、製鉄原料を原料槽に安定的に装入することができるので、作業効率が格段に向上する。 According to the present invention, since the tripper and the dust collecting means are integrated, it is not necessary to provide a large-scale and large-capacity dust collecting device in the raw material storage facility. Further, according to the present invention, the tripper and the dust collecting means are integrated, move quickly to the charging position of the iron making raw material, and stably collect the iron making raw material in the raw material tank while collecting the dust efficiently. Since it can be charged, work efficiency is greatly improved.
さらに、集塵機に堆積した集塵堆積物は、原料槽内に、直接排出して、製鉄原料として回収することができる。 Furthermore, the dust collection deposit deposited on the dust collector can be directly discharged into the raw material tank and recovered as a steelmaking raw material.
図面に基づいて、本発明の集塵トリッパーについて説明する。図2に、集塵機を連結した集塵トリッパーの態様を示す。図2(a)に、集塵機を連結したトリッパーの側面態様を示し、図2(b)に、集塵機の正面態様を示す。 The dust collection tripper of the present invention will be described based on the drawings. In FIG. 2, the aspect of the dust collection tripper which connected the dust collector is shown. FIG. 2A shows a side aspect of a tripper connected with a dust collector, and FIG. 2B shows a front aspect of the dust collector.
走行台車10aで移動するトリッパー1が、製鉄原料装入位置に静止し、ベルトコンベア6の先端が、トリッパー1の上部に位置している。ベルトコンベア6は、軌道11上を走行する走行台車10cで移動可能なコンベアフード6aで覆われている。
The tripper 1 that is moved by the
ベルトコンベア6の先端から落下する製鉄原料(図示なし)は、トリッパー1から、シュート2を経て、原料槽(図示なし)に堆積する。トリッパー1の上部には、集塵フード1aが配置されていて、集塵フード1aは、集塵配管8で、軌道11上を走行する走行台車10bに載置されている集塵機9に接続されている。
The iron-making raw material (not shown) falling from the tip of the
即ち、製鉄原料装入時に発生する粉塵を効率よく集塵するため、トリッパー1に、トリッパー1と一体になって走行する集塵機9が連結されている。この点が、本発明の特徴である。
In other words, a
粉塵は、集塵機9のホッパー9a内に堆積する。ホッパー9a内に堆積した集塵堆積物は、適宜、排出口9bから、直下の原料槽へ排出する。即ち、集塵堆積物を、製鉄原料として回収する。
The dust accumulates in the
トリッパーと集塵機の接続形態は、図2に示す接続態様に限られない。金属製の集塵配管を用いれば、集塵配管8のみで、トリッパーと集塵機を一体化できるが、走行台車同士を連結器で接続してもよい。 The connection mode between the tripper and the dust collector is not limited to the connection mode shown in FIG. If a metal dust collecting pipe is used, the tripper and the dust collector can be integrated by the dust collecting pipe 8 alone, but the traveling carts may be connected by a coupler.
本発明においては、トリッパーと集塵機が一体化しているので、原料貯蔵設備内に、大規模・大容量で、非効率な集塵装置を設ける必要がない。また、本発明においては、トリッパーと集塵機が一体化しているので、トリッパーと集塵機を、製鉄原料の装入位置に迅速に移動させ、集塵機で効率的に集塵しつつ、製鉄原料を原料槽に安定的に装入することができる。その結果、原料貯蔵における作業能率が格段に向上する。 In the present invention, since the tripper and the dust collector are integrated, it is not necessary to provide a large-scale, large-capacity and inefficient dust collector in the raw material storage facility. In the present invention, since the tripper and the dust collector are integrated, the tripper and the dust collector are quickly moved to the charging position of the ironmaking raw material, and the ironmaking raw material is put into the raw material tank while collecting the dust efficiently. It can be charged stably. As a result, work efficiency in raw material storage is significantly improved.
次に、本発明の実施例について説明するが、実施例での条件は、本発明の実施可能性及び効果を確認するために採用した一条件例であり、本発明は、この一条件例に限定されるものではない。本発明は、本発明の要旨を逸脱せず、本発明の目的を達成する限りにおいて、種々の条件を採用し得るものである。 Next, examples of the present invention will be described. The conditions in the examples are one example of conditions used for confirming the feasibility and effects of the present invention, and the present invention is based on this one example of conditions. It is not limited. The present invention can adopt various conditions as long as the object of the present invention is achieved without departing from the gist of the present invention.
(実施例)
表1に示す3基のトリッパー(表中、A−Tr、B−Tr、C−Tr)を原料貯蔵設備内に配置し、製鉄原料(焼結粉及び鉱石粉)を原料槽に装入した。装入は、本発明の集塵方式と、従来の集塵方式で行った。結果を表2に示す。表2から、本発明の集塵方式が優れていることが解る。
(Example)
Three trippers shown in Table 1 (in the table, A-Tr, B-Tr, C-Tr) were placed in the raw material storage facility, and iron-making raw materials (sintered powder and ore powder) were charged into the raw material tank. . The charging was performed by the dust collection method of the present invention and the conventional dust collection method. The results are shown in Table 2. From Table 2, it can be seen that the dust collection method of the present invention is excellent.
前述したように、本発明によれば、トリッパーと集塵手段が一体となっているので、原料貯蔵設備内に、大規模・大容量の集塵装置を設ける必要がない。また、本発明によれば、トリッパーと集塵手段が一体となって、製鉄原料の装入位置に迅速に移動し、かつ、高効率で集塵しつつ、製鉄原料を原料槽に安定的に装入することができるので、作業効率が格段に向上する。 As described above, according to the present invention, since the tripper and the dust collecting means are integrated, it is not necessary to provide a large-scale and large-capacity dust collecting device in the raw material storage facility. Further, according to the present invention, the tripper and the dust collecting means are integrated, move quickly to the charging position of the iron making raw material, and stably collect the iron making raw material in the raw material tank while collecting the dust efficiently. Since it can be charged, work efficiency is greatly improved.
さらに、集塵機に堆積した集塵堆積物は、原料槽内に、直接排出して、製鉄原料として回収することができる。よって、本発明は、鉄鋼産業において利用可能性が高いものである。 Furthermore, the dust collection deposit deposited on the dust collector can be directly discharged into the raw material tank and recovered as a steelmaking raw material. Therefore, the present invention has high applicability in the steel industry.
1 トリッパー
2 シュート
3 移動式ダクト接続管
4 集塵本管
4a 集塵ダクト
5 原料貯蔵設備
6 ベルトコンベア
6a コンベアフード
7 原料槽
8 集塵配管
8a 集塵フード
9 集塵機
9a ホッパー
9b 排出口
10a、10b、10c 走行台車
11 軌道
DESCRIPTION OF SYMBOLS 1
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Cited By (1)
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CN105523398A (en) * | 2016-01-15 | 2016-04-27 | 高玉宗 | Truck loading dust collecting system |
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JPS55153186U (en) * | 1979-04-18 | 1980-11-05 | ||
JPS6428125A (en) * | 1987-07-21 | 1989-01-30 | Taikuu Kk | Stowing device |
JPH09132781A (en) * | 1995-11-07 | 1997-05-20 | Sumitomo Metal Ind Ltd | Dust-collector of bucket facility of coke oven |
JPH1045259A (en) * | 1996-08-07 | 1998-02-17 | Lion Corp | Dust preventing device for powder product conveying device |
JP2006241536A (en) * | 2005-03-04 | 2006-09-14 | Jfe Steel Kk | Dust collection method for blast furnace ore tank |
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US1994832A (en) * | 1935-03-19 | A b osgood | ||
JPS4625982Y1 (en) * | 1968-12-05 | 1971-09-07 | ||
JPS55153186U (en) * | 1979-04-18 | 1980-11-05 | ||
JPS6428125A (en) * | 1987-07-21 | 1989-01-30 | Taikuu Kk | Stowing device |
JPH09132781A (en) * | 1995-11-07 | 1997-05-20 | Sumitomo Metal Ind Ltd | Dust-collector of bucket facility of coke oven |
JPH1045259A (en) * | 1996-08-07 | 1998-02-17 | Lion Corp | Dust preventing device for powder product conveying device |
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