JPH07165317A - Scrap conveyance - Google Patents
Scrap conveyanceInfo
- Publication number
- JPH07165317A JPH07165317A JP12993194A JP12993194A JPH07165317A JP H07165317 A JPH07165317 A JP H07165317A JP 12993194 A JP12993194 A JP 12993194A JP 12993194 A JP12993194 A JP 12993194A JP H07165317 A JPH07165317 A JP H07165317A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- scrap
- raw material
- belt conveyor
- underlayment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/2045—Mechanical means for guiding or retaining the load on the load-carrying surface
- B65G21/2063—Mechanical means for guiding or retaining the load on the load-carrying surface comprising elements not movable in the direction of load-transport
- B65G21/2072—Laterial guidance means
- B65G21/2081—Laterial guidance means for bulk material, e.g. skirts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ベルトコンベアを用い
てスクラップを搬送する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of conveying scrap by using a belt conveyor.
【０００２】[0002]
【従来の技術】資源のリサイクルの観点からスクラップ
の再利用が行われているが、スクラップは角の鋭い形状
が多いため、従来は一般のゴムベルトで搬送する事は少
なく、金属性のパンコンベア、バスケットエレベータ、
特殊なひれ付きコンベア等を用いて搬送している。鉄鋼
業では、製銑、製鋼工程でスクラップを使用している。
製鋼工場でスクラップを装入する場合には、スクラップ
の角を溶解して丸くする加工を行ってベルトコンベアで
搬送している。高炉においては、スキップ方式で原料を
装入する場合はスキップカーが金属製のため、スクラッ
プの挿入には問題がないが、スキップ方式は原料の装入
能力に問題があり、大型高炉には適していない。2. Description of the Related Art Scraps are reused from the viewpoint of recycling resources, but since scraps often have sharp-edged shapes, they are rarely carried by general rubber belts in the past, and metal pan conveyors are widely used. Basket elevator,
It is transported using a special fin conveyor. In the steel industry, scrap is used in the ironmaking and steelmaking processes.
When scrap is charged at a steelmaking plant, the corners of the scrap are melted and rounded and then conveyed by a belt conveyor. In the blast furnace, when the raw material is charged by the skip method, the skip car is made of metal, so there is no problem in scrap insertion, but the skip method has a problem in the raw material charging capacity and is suitable for large blast furnaces. Not not.
【０００３】大型高炉でスクラップを使用する場合は、
スクラップの使用量が（１０００〜２０００ｔ／日）と
多く、ベルトコンベアによる搬送が求められる。高炉へ
の鉄鉱石あるいはコークス等の原料供給と共通のライン
である装入ベルトコンベアを使用することができるが、
このベルトが損傷あるいは破断すると高炉に原料が供給
できなくなり、高炉の操業に重大な支障をきたす。そこ
で従来、装入ベルトを用いる場合は、角の鋭いスクラッ
プがベルトコンベアのベルトに直接接触しベルトが損傷
しないよう、棒状や角の鋭いスクラップは形状検査で選
別除去して載せている。あるいは、スクラップ専用の高
炉への装入装置としてバケットエレベーターかひれ付き
コンベアを設け、高炉へ装入する方法がある。When scrap is used in a large blast furnace,
Since the amount of scrap used is large (1000 to 2000 t / day), conveyance by a belt conveyor is required. It is possible to use a charging belt conveyor which is a line common to supply raw materials such as iron ore or coke to the blast furnace,
If this belt is damaged or broken, the raw material cannot be supplied to the blast furnace, which seriously hinders the operation of the blast furnace. Therefore, conventionally, when a charging belt is used, rod-shaped or sharp-edged scraps are selectively removed by a shape inspection and placed so that the scraps having sharp corners do not directly contact the belt of the belt conveyor to damage the belt. Alternatively, there is a method in which a bucket elevator or a conveyor with fins is provided as a charging device for the scrap-only blast furnace and the scrap is charged into the blast furnace.
【０００４】[0004]
【発明が解決しようとする課題】大量のスクラップの連
続輸送にはベルトコンベアによる搬送が適しているが、
スクラップの鋭い角がベルトに刺さり該ベルトに損傷を
与え、最悪の場合はベルトを切り裂いてベルト上の原料
が落下し装入が不可能になる事がある。このため、ベル
トコンベアでスクラップを搬送する場合は、スクラップ
の選別あるいは鋭い角の特殊加工が必要となり、莫大な
コストと時間がかかる。本発明は、ベルトコンベア上の
下敷き材の上に、スクラップの選別を行なわずに積載
し、スクラップがゴムベルトに直接接触しない、安価で
安全なスクラップの搬送方法を提供することにある。Although a conveyor belt is suitable for continuous transportation of a large amount of scrap,
A sharp corner of scrap may pierce the belt and damage the belt, and in the worst case, the belt may be torn and the raw material on the belt may drop to make the charging impossible. Therefore, when the scrap is conveyed by the belt conveyor, it is necessary to select the scrap or perform special processing with a sharp corner, which requires a huge cost and time. An object of the present invention is to provide an inexpensive and safe method of transporting scrap, in which scraps are loaded on an underlaying material on a belt conveyor without being sorted, and the scraps do not directly contact the rubber belt.
【０００５】[0005]
【課題を解決するための手段】本発明は、ベルトコンベ
アでスクラップを搬送する方法において、前記ベルトコ
ンベアのベルト上の下敷き材の上にスクラップを積載し
て搬送することを特徴とし、また、ベルトコンベアのベ
ルトの上に下敷き材として原料を乗せた後、ベルト進行
方向の下流部でベルト中央部の下面から上方に変位を与
え、ベルト上の原料の堆積形状を平滑にし、該原料の上
にスクラップを積載することを特徴とし、さらに、ベル
トコンベア上に設けたホッパーからベルト上に下敷き材
を乗せる際に、ホッパー下部の切り出しゲートに、ベル
トの進行方向に平行に設置したロストルまたはプレート
を介して下敷き材をベルト上に平坦又は中央が凹になる
ように乗せ、該下敷き材の上にスクラップを積載するこ
とを特徴とし、また、ベルトコンベア上にベルト進行方
向に垂直に設置したスクレイパーをベルト上の下敷き材
の中央部に接触させ、該下敷き材をベルトの進行方向に
対して平行で連続した平滑または中央部を凹にし、該下
敷き材の上にスクラップを積載することを特徴とするス
クラップの搬送方法である。SUMMARY OF THE INVENTION The present invention relates to a method of transporting scrap on a belt conveyor, characterized in that scrap is loaded on an underlaying material on the belt of the belt conveyor and transported, and After placing the raw material as an underlay material on the belt of the conveyor, it is displaced upward from the lower surface of the central portion of the belt at the downstream portion in the belt traveling direction to smooth the deposited shape of the raw material on the belt, It is characterized by loading scraps.Furthermore, when placing an underlaying material on the belt from the hopper provided on the belt conveyor, the cutout gate at the bottom of the hopper is inserted through a roster or plate installed parallel to the traveling direction of the belt. Is placed on the belt so that it is flat or has a concave center, and scrap is loaded on the underlay material. , A scraper installed perpendicular to the belt traveling direction on the belt conveyor is brought into contact with the central portion of the underlaying material on the belt, and the underlaying material is made parallel and continuous to the traveling direction of the belt to make the smooth or central portion concave, A scrap conveying method is characterized in that scrap is loaded on the underlayment material.
【０００６】[0006]
【作用】スクラップの形状は多種多様で、棒状あるいは
角の鋭い形状のスクラップを直接ベルトコンベアで大量
に搬送するとベルトを破損する危険性が大きい。本発明
のスクラップ搬送方法は、スクラップの下に下敷き材を
敷くことにより前記スクラップが直接ベルトと接触しな
いため、ベルトを破損することなく前記スクラップを搬
送することができる。下敷き材はベルトに損傷を与えな
い物で、粉体あるいは塊状の物が使用でき、例えば高炉
にスクラップを搬送する場合の下敷き材としては、例え
ば鉄鉱石、コークス等の通常の高炉装入原料の使用が好
ましい。高炉で使用するスクラップは１０ｍｍ×１０ｍ
ｍ以下に裁断したものである。ベルトコンベア上の原料
の搬送量は、スクラップ搬送量に相当する量を減じる事
により、搬送中にベルトから脱落する事を避ける。There are various kinds of scraps, and if a large amount of rod-shaped or sharp-edged scraps are directly conveyed by the belt conveyor, there is a great risk of breaking the belt. In the scrap transport method of the present invention, the scrap is laid under the scrap so that the scrap does not directly contact the belt, and thus the scrap can be transported without damaging the belt. The underlay material is a material that does not damage the belt, and powder or lumps can be used.For example, when carrying scrap to the blast furnace, the underlay material includes, for example, iron ore, coke, and other normal blast furnace charging materials. Use is preferred. The scrap used in the blast furnace is 10 mm x 10 m
It is cut to m or less. The amount of the raw material transported on the belt conveyor is reduced by the amount corresponding to the scrap transported amount to avoid falling off the belt during transportation.
【０００７】以下に、本発明のスクラップの搬送方法を
詳細に述べる。一般に、ベルトコンベアで下敷き材とし
ての粉体等をベルト２上に搭載すると、図８の様に中央
部が上に凸の山形になり、この上にスクラップ１３を積
載すると該スクラップが両サイドに落下し（図８）、下
敷き材の下に巻き込まれ、ベルト２を破損する危険があ
る。以下にベルトコンベアのベルト上に下敷き材を敷く
方法について述べる。The scrap carrying method of the present invention will be described in detail below. Generally, when powder or the like as an underlaying material is mounted on the belt 2 by a belt conveyor, the center part has a mountain shape with an upward convex shape as shown in FIG. 8, and when the scrap 13 is loaded on this, the scrap is placed on both sides. There is a risk that the belt 2 may be dropped (FIG. 8) and caught under the underlayment material, and the belt 2 may be damaged. The method of laying the underlay material on the belt of the belt conveyor will be described below.
【０００８】１．ベルトコンベア上に設けた中継ホッパ
ーからコンベア上に下敷き材を落下させる際に、あらか
じめ切り出しゲートに設置されたロストル（図１）やプ
レート（図２）を介して下敷き材を平坦または中央が凹
となるように搭載させ、その上にスクラップを積載する
方法。1. When the underlayment is dropped onto the conveyor from the relay hopper provided on the belt conveyor, the underlayment is flattened or concave at the center through the roster (Fig. 1) or plate (Fig. 2) installed in the cutting gate in advance. How to load so that scrap can be loaded on top of it.
【０００９】２．ベルトコンベア上に図３に示す門構え
を設け、前記門構えのベルトコンベア中央部に長方形の
板を取付け、下端をベルト上に積載した下敷き材に接触
させ、前記ベルトコンベアに対して平行で連続した平滑
部分を設け、該平滑部分にスクラップを積載し搬送する
方法。なお、前記長方形の板は固定式でも良いが、上下
方向の可動式にし、スクラップを装入しない場合にベル
ト上の下敷き材に前記長方形の板が接触しないようにで
きることが好ましい。2. The gate structure shown in FIG. 3 is provided on the belt conveyor, a rectangular plate is attached to the central part of the belt conveyor of the gate structure, and the lower end is brought into contact with the underlay material loaded on the belt, and is smooth in parallel with the belt conveyor. A method of providing a portion and loading and transporting scrap on the smooth portion. The rectangular plate may be fixed, but it is preferably movable vertically so that the rectangular plate does not come into contact with the underlay material on the belt when scrap is not charged.
【００１０】３．ベルトコンベア上に図４に示す門構え
を設け、前記門構えのベルトコンベア中央部に図４に示
す下端中央部が下向きに凸な板を取付け、下端をベルト
上に積載した下敷き材に接触させ、前記ベルトコンベア
に対して平行で連続した、深さがベルトまでは達しない
窪み部分を設け、該深さがベルトまでは達しない窪み部
分にスクラップを積載し搬送する方法。なお、前記下端
中央部分が下向きに凸な板は固定式でも良いが、上下方
向の可動式にし、スクラップを装入しない場合にベルト
上の下敷き材に前記長方形の板が接触しないようにでき
ることが好ましい。3. A gate structure shown in FIG. 4 is provided on the belt conveyor, and a plate whose central part at the lower end shown in FIG. 4 is downwardly convex is attached to the central part of the belt conveyor of the gate structure, and the lower end is brought into contact with the underlayment loaded on the belt, A method in which a recessed portion that is parallel and continuous to the belt conveyor and has a depth that does not reach the belt is provided, and scraps are loaded and conveyed in the recessed portion that does not reach the belt. The plate whose central portion at the lower end is downwardly convex may be fixed, but it can be made movable in the vertical direction so that the rectangular plate does not contact the underlay material on the belt when scrap is not loaded. preferable.
【００１１】４．図６に示すように、ホッパーからスク
ラップを排出する手前でベルトの中央下面を支持するキ
ャリアローラを、下敷き材としての原料排出位置のキャ
リアローラより相対的に高くする。この方法として、キ
ャリアローラの取付位置を常に上流より高い位置に保つ
ように、調整して取り付けておけばよい。しかしスクラ
ップを輸送しない時には、原料が平滑化される結果とし
てベルトの外縁よりこぼれ落ちる可能性があることから
ベルトの輸送能力を落すことになる。スクラップを装入
する時のみ、当該部のベルト下面中央のキャリアローラ
を油圧等の装置で上方に上げて先行排出原料に変位を与
えることにより形状を平滑化する方法も本発明の一方法
である。4. As shown in FIG. 6, the carrier roller supporting the central lower surface of the belt before discharging the scrap from the hopper is made relatively higher than the carrier roller at the material discharging position as the underlaying material. As this method, the carrier roller may be adjusted and mounted so that the mounting position is always higher than the upstream position. However, when the scrap is not transported, the transport capacity of the belt is reduced because the raw material may be spilled from the outer edge of the belt as a result of smoothing the raw material. A method of smoothing the shape by raising the carrier roller at the center of the lower surface of the belt of the relevant portion upward by a device such as hydraulic pressure to displace the preceding discharged raw material only when scrap is charged is also a method of the present invention. .
【００１２】先行排出原料の堆積形状としては中央部に
凹部を生じさせ、この凹部の上にスクラップを装入する
ことがスクラップとベルトの接触が最も回避出来る。こ
のような形状となるよう、中央下面のみならずベルト端
部を支持するキャリアローラの調整を行うとより効果が
上ることはいうまでもない。スクラップを乗せた以後、
即ち下流側のキャリアローラ高さは、上流側即ちスクラ
ップ排出前と同じレベルに戻した方が、スクラップを輸
送しない場合のベルトの輸送能力を高く保つことが出来
る。また、先行排出する原料のベルトへの排出する速度
あるいは排出量をスクラツプ輸送時には少し低下させス
クラップを収容するベルト上の容積を大きくする方法
が、ベルトからの原料落下を防止する上では効果的であ
る。As for the deposition shape of the preceding discharge raw material, it is most possible to avoid contact between the scrap and the belt by forming a concave portion in the central portion and charging the scrap on the concave portion. Needless to say, the carrier roller supporting not only the lower surface of the center but also the end portion of the belt is adjusted so as to have such a shape. After loading the scrap,
That is, when the height of the carrier roller on the downstream side is returned to the same level as that on the upstream side, that is, before the scrap is discharged, the transport capacity of the belt when the scrap is not transported can be kept high. Further, a method of slightly decreasing the speed or the amount of discharge of the raw material to be discharged to the belt at the time of scrap transportation to increase the volume on the belt for storing scrap is effective in preventing the material from falling from the belt. is there.
【００１３】[0013]
（実施例１）図６に示すように、高炉１４の原料装入用
の長さ３００ｍ、幅２ｍのベルト２上にスクラップ装入
ホッパー１１を鉄鉱石類の装入ホッパー１０に対して高
炉の装入口側に設置した。前記鉄鉱石類装入ホッパー１
０下部の装入用ゲート出口に図１に示す、直径５０ｍ
ｍ、長さ５００ｍｍの高クロム鋳鉄製の丸棒であるロス
トル４をベルト２の進行方向に平行に、間隔４００ｍｍ
でゲート１のプレート間に格子状に設置した。鉄鉱石類
の原料３を従来の１０％減の７２ｔ／ｍｉｎで高炉の原
料装入ベルトコンベア２上に搭載した結果、前記鉄鉱石
類をベルト２上にほぼ平坦に搭載できた。そして、前記
スクラップ装入ホッパー１１から、ベルト上に搭載され
た前記鉄鉱石類の平坦部上部の中央に寸法が５〜１０ｍ
ｍのスクラップ１３を８ｔ／ｍｉｎで搭載し、高炉炉頂
ホッパー１２へ搬送した。その結果、１０００ｔのスク
ラップを搬送した後に、ベルトコンベアのベルトにはス
クラップによる破損は認められなかった。なお、ロスト
ル４の材質は高クロム鋳鉄等の耐摩耗部材等を用いれば
良い。(Embodiment 1) As shown in FIG. 6, a scrap charging hopper 11 is installed on a belt 2 having a length of 300 m and a width of 2 m for charging a raw material of a blast furnace 14 with respect to a charging hopper 10 for charging iron ores. It was installed at the entrance side. The iron ore charging hopper 1
0 at the bottom charging gate exit, as shown in Fig. 1, diameter 50m
m, length 500 mm, a high-chromium cast iron round bar 4 is parallel to the traveling direction of the belt 2, the distance 400 mm
Then, they were installed in a grid pattern between the plates of the gate 1. As a result of mounting the iron ore raw material 3 on the belt conveyor 2 for charging the raw material of the blast furnace at 72 t / min, which is 10% less than the conventional amount, the iron ore could be mounted on the belt 2 substantially flat. From the scrap charging hopper 11, the size of the iron ore loaded on the belt is 5 to 10 m at the center of the upper portion of the flat portion.
m of scrap 13 was loaded at 8 t / min and conveyed to the blast furnace top hopper 12. As a result, no damage due to scrap was found on the belt of the belt conveyor after the transportation of 1000 tons of scrap. It should be noted that the material of the roster 4 may be a wear resistant member such as high chromium cast iron.
【００１４】（実施例２）図６に示す、高炉の原料装入
用の長さ３００ｍ、幅２ｍのベルト２上にスクラップ装
入ホッパー１１を鉄鉱石類装入ホッパー１０に対して高
炉の装入口側に設置した。前記鉄鉱石類装入ホッパー１
０下部の装入用ゲート出口に図２に示す、幅２００ｍ
ｍ、長さ５００ｍｍ、厚さ２０ｍｍの高クロム鋳鉄製の
プレート５をベルトコンベア２の進行方向に平行に設置
し、鉄鉱石類の原料３を高炉の原料装入ベルト２上に従
来の１０％減の７２ｔ／ｍｉｎで搭載した結果、前記原
料はベルト２上に中央部分がベルトに対して平行に凹状
になって搭載できた。そして、前記スクラップ装入ホッ
パー１１から、ベルト２上に搭載された前記原料の中央
の凹部に寸法が５〜１０ｍｍのスクラップ１３を８ｔ／
ｍｉｎで搭載し、高炉炉頂ホッパー１２へ搬送した。そ
の結果、１０００ｔのスクラップを搬送した後に、ベル
トコンベアのベルトにはスクラップによる破損は認めら
れなかった。なお、板５は板状だけでなく、柱状あるい
は断面が円または楕円形状の棒状でも良く、材質は高ク
ロム鋳鉄等の耐摩耗部材等を用いれば良い。(Embodiment 2) As shown in FIG. 6, a scrap charging hopper 11 is mounted on a belt 2 having a length of 300 m and a width of 2 m for charging raw materials of a blast furnace, and a blast furnace is charged with respect to an iron ore charging hopper 10. It was installed on the entrance side. The iron ore charging hopper 1
Width 200m shown in Fig. 2 at the bottom charging gate exit
A plate 5 made of high-chromium cast iron having a length of m, a length of 500 mm, and a thickness of 20 mm is installed in parallel with the traveling direction of the belt conveyor 2, and a raw material 3 of iron ore is placed on the raw material charging belt 2 of the blast furnace 10% of the conventional one. As a result of mounting at a reduced load of 72 t / min, the raw material could be mounted on the belt 2 with the central portion being concave parallel to the belt. Then, from the scrap charging hopper 11, 8 t / s of scrap 13 having a size of 5 to 10 mm is placed in the central concave portion of the raw material mounted on the belt 2.
It was mounted for a minimum time and transported to the blast furnace top hopper 12. As a result, no damage due to scrap was found on the belt of the belt conveyor after the transportation of 1000 tons of scrap. The plate 5 may be not only plate-shaped but also column-shaped or rod-shaped with a circular or elliptical cross section, and the material may be a wear-resistant member such as high chromium cast iron.
【００１５】（実施例３）高炉の原料装入用の長さ３０
０ｍ、幅２ｍのベルト２上にスクラップ装入ホッパー１
１を鉄鉱石類装入ホッパー１０に対して高炉の装入口側
に設置し、前記鉄鉱石類装入ホッパー１０とスクラップ
装入用のホッパー１１の間に図３に示す幅２．２ｍ、高
さ１．５ｍの門構え６をベルト２の進行方向に対して直
角に設置した。前記門構え６の中央部の幅５００ｍｍ、
高さ１００ｍｍ、厚さ２０ｍｍの高クロム鋳鉄製の板の
スクレーパー７を門構えとのスクレイパー支持部８を介
して設置した。該スクレイパー支持部８は電動で上下方
向に±２００ｍｍ動くことができるようにした。前記ス
クレーパー７を下降し、該スクレーパー７の中央部の４
００ｍｍの幅の部分をベルト２上の鉄鉱石類の原料３と
接触させ、前記原料の搬送時にベルト２上の前記原料の
中央部分に平坦部を形成し、該平滑部にスクラップ装入
用のホッパー１１から寸法が５〜１０ｍｍのスクラップ
１３を搭載し、高炉炉頂ホッパー１２へ搬送した。ここ
で、鉄鉱石類は鉄鉱石装入ホッパー１０から従来の１０
％減の７２ｔ／ｍｉｎで装入し、スクラップ１３はスク
ラップ装入ホッパー１１から８ｔ／ｍｉｎで装入した。
その結果、１０００ｔのスクラップを搬送した後に、ベ
ルトコンベアのベルトにはスクラップによる破損は認め
られなかった。なお、接触させる板８の幅はベルト２の
幅の１／３〜１／４であれば良く、また、スクレイパー
支持部８は板状あるいは柱状で良く、材質は高クロム鋳
鉄等の耐摩耗部材等を用いれば良い。(Embodiment 3) Length 30 for charging raw material of blast furnace
A scrap charging hopper 1 on a belt 2 with a width of 0 m and a width of 2 m
1 is installed on the inlet side of the blast furnace with respect to the iron ore charging hopper 10 and the width 2.2 m shown in FIG. 3 between the iron ore charging hopper 10 and the scrap charging hopper 11 is high. A gate structure 6 having a length of 1.5 m was installed at a right angle to the traveling direction of the belt 2. The width of the central portion of the gate structure 6 is 500 mm,
A scraper 7 made of a high-chromium cast iron plate having a height of 100 mm and a thickness of 20 mm was installed via a scraper supporting portion 8 which was a gate structure. The scraper supporting portion 8 is electrically movable so that it can move ± 200 mm in the vertical direction. The scraper 7 is lowered, and the scraper 7 at the center of
A portion having a width of 00 mm is brought into contact with the iron ore raw material 3 on the belt 2, and a flat portion is formed in the central portion of the raw material on the belt 2 when the raw material is conveyed, and the smooth portion is used for scrap charging. A scrap 13 having a size of 5 to 10 mm was loaded from the hopper 11 and conveyed to the blast furnace top hopper 12. Here, the iron ore is from the iron ore charging hopper 10 to the conventional 10 ore.
The scrap 13 was charged at 72 t / min, and the scrap 13 was charged from the scrap charging hopper 11 at 8 t / min.
As a result, no damage due to scrap was found on the belt of the belt conveyor after the transportation of 1000 tons of scrap. It should be noted that the width of the plate 8 to be brought into contact may be 1/3 to 1/4 of the width of the belt 2, and the scraper support portion 8 may be plate-shaped or columnar, and the material thereof is a wear-resistant member such as high chromium cast iron. Etc. may be used.
【００１６】（実施例４）高炉の原料装入用の長さ３０
０ｍ、幅２ｍのベルト２上にスクラップ装入ホッパー１
１を鉄鉱石類装入ホッパー１０に対して高炉の装入口側
に設置し、前記鉄鉱石類装入ホッパー１０とスクラップ
装入用のホッパー１１の間に図４に示す幅２．２ｍ、高
さ１．５ｍの門構え６をベルト２の進行方向に対して直
角に設置した。前記門構え６の中央部に幅５００ｍｍ、
高さ１５０ｍｍ、厚さ２０ｍｍの高クロム鋳鉄製の下端
が下向きに凸形状のスクレイパー９を門構えとのスクレ
イパー支持部８を介して設置した。該スクレイパー支持
部８は電動で上下方向に±２００ｍｍ動くことができる
ようにした。凸形状のスクレイパー９を下降させ、該ス
クレイパー９の凸部の４００ｍｍの幅の部分をベルト２
上の鉄鉱石類原料の原料３と接触させ、前記原料の搬送
時にベルト２上の前記原料の中央部分に凹部を形成し、
該凹部にスクラップ装入ホッパー１１から寸法が５〜１
０ｍｍのスクラップ１３を搭載し、高炉炉頂ホッパー１
２へ搬送した。ここで、鉄鉱石類は鉄鉱石装入ホッパー
１０から従来の１０％減の７２ｔ／ｍｉｎで装入し、ス
クラップ１３はスクラップ装入ホッパー１１から８ｔ／
ｍｉｎで装入した。その結果、１０００ｔのスクラップ
を搬送した後に、ベルトコンベアのベルトにはスクラッ
プによる破損は認められなかった。なお、下端が下向き
に凸形状スクレイパー９の幅はベルトの幅の１／３〜１
／４で、スクレイパー９は板状だけでなくマッシュルー
ム形状でも良く、材質は高クロム鋳鉄等の耐摩耗部材等
を用いれば良い。(Embodiment 4) Length 30 for charging raw material of blast furnace
A scrap charging hopper 1 on a belt 2 with a width of 0 m and a width of 2 m
1 is installed on the inlet side of the blast furnace with respect to the iron ore charging hopper 10, and the width 2.2 m shown in FIG. 4 is provided between the iron ore charging hopper 10 and the scrap charging hopper 11. A gate structure 6 having a length of 1.5 m was installed at a right angle to the traveling direction of the belt 2. 500 mm wide at the center of the gate structure 6,
A scraper 9 having a height of 150 mm and a thickness of 20 mm, made of high-chromium cast iron, and having a downwardly convex lower end was installed via a scraper support portion 8 with a gate. The scraper supporting portion 8 is electrically movable so that it can move ± 200 mm in the vertical direction. The convex scraper 9 is lowered and the 400 mm wide portion of the convex portion of the scraper 9 is moved to the belt 2
When contacting with the raw material 3 of the above iron ore raw material, a concave portion is formed in the central portion of the raw material on the belt 2 when the raw material is conveyed,
From the scrap charging hopper 11 to the recess, the size is 5 to 1
A blast furnace top hopper 1 equipped with 0 mm scrap 13
Transported to 2. Here, the iron ore is charged from the iron ore charging hopper 10 at 72t / min, which is 10% less than the conventional amount, and the scrap 13 is 8t / min from the scrap charging hopper 11.
Charged in min. As a result, no damage due to scrap was found on the belt of the belt conveyor after the transportation of 1000 tons of scrap. The width of the scraper 9 whose lower end is convex downward is 1/3 to 1 of the width of the belt.
At / 4, the scraper 9 may have a mushroom shape as well as a plate shape, and the material may be a wear-resistant member such as high chromium cast iron.
【００１７】（実施例５）本発明の実施の一例として図
５のごとくスクラップ１３を乗せる部分のベルト２の中
央下面を支持する可動水平キャリアローラ１６を油圧シ
リンダー１７により上流側より相対的に上方向に上げる
ことにより、原料３の堆積形状は平滑化される。図６
は、図５に対応するベルトの中心軸での断面図であり上
方に油圧シリンダー１７で押し上げられた状態を示す。
この上にスクラップ１３をのせることでベルト２との接
触は防止される。油圧シリンダー１７を押し上げるタイ
ミングは、原料３の排出開始の信号をもとに容易に制御
出来る。スクラップ１３のスクラップホッパー１１から
の切り出しが完了した後、油圧シリンダー１７により、
可動水平キャリアローラ１６を上流側と同じ位置まで下
げる。保護層としてもちいられる原料１としては、鉄鉱
石の如く、粉状あるいは粒状であることが当然望まし
い。図示されていないがこのスクラップの上にベルト下
流側でさらに別の原料を上にかぶせて乗せスクラップ１
３が輸送過程でベルト２の巾方向に端部まで移動しベル
トと接触することを防止すればより効果を上げることが
出来ることは論をまたない。上記で油圧シリンダー１７
をもちいて、スクラップ１３の排出に合わせベルト中央
下面を押し上げる実施の一方法について説明したが、ス
クラップ排出部近傍の中央水平キャリアローラを固定的
に先行排出原料部より、高く保っておく方法も本発明の
他の実施方法である。(Embodiment 5) As an example of the embodiment of the present invention, as shown in FIG. 5, a movable horizontal carrier roller 16 for supporting the central lower surface of the belt 2 in the portion on which the scrap 13 is placed is relatively elevated from the upstream side by a hydraulic cylinder 17. By raising in the direction, the deposition shape of the raw material 3 is smoothed. Figure 6
[FIG. 6] is a sectional view taken along the central axis of the belt corresponding to FIG. 5, showing a state in which the belt is pushed upward by the hydraulic cylinder 17.
By placing the scrap 13 on this, contact with the belt 2 is prevented. The timing of pushing up the hydraulic cylinder 17 can be easily controlled based on the signal to start discharging the raw material 3. After the scrap 13 is completely cut out from the scrap hopper 11, the hydraulic cylinder 17
The movable horizontal carrier roller 16 is lowered to the same position as the upstream side. As the raw material 1 used as the protective layer, it is naturally desirable that the raw material 1 be powdery or granular, such as iron ore. Although not shown, another scrap is put on the scrap on the downstream side of the belt and scrap 1
It goes without saying that it is possible to further improve the effect by preventing 3 from moving to the end of the belt 2 in the width direction of the belt and coming into contact with the belt. Hydraulic cylinder 17 above
The method of pushing up the lower surface of the center of the belt in accordance with the discharge of the scrap 13 has been described above. However, a method of fixedly keeping the central horizontal carrier roller near the scrap discharge part higher than the preceding discharge raw material part is also the main method. It is another embodiment of the invention.
【００１８】[0018]
【発明の効果】ベルトコンベア上に下敷き材を敷きその
上にスクラップを装入する方法により、高炉において、
多量のスクラップを使用する場合に、スクラップの形状
を選別すること無く、かつベルトコンベアを損傷せずに
スクラップを炉頂装入装置まで運搬することが可能にな
った。EFFECTS OF THE INVENTION By a method of laying an underlay material on a belt conveyor and charging scraps on it, in a blast furnace,
When a large amount of scrap is used, it is possible to convey the scrap to the furnace top charging device without selecting the shape of the scrap and without damaging the belt conveyor.
【図１】本発明の実施態様の１例（実施例１）を示す図FIG. 1 is a diagram showing an example (Example 1) of an embodiment of the present invention.
【図２】本発明の他の実施態様（実施例２）を示す図FIG. 2 is a diagram showing another embodiment (Example 2) of the present invention.
【図３】本発明の他の実施態様（実施例３）を示す図FIG. 3 is a diagram showing another embodiment (Example 3) of the present invention.
【図４】本発明の他の実施態様（実施例４）を示す図FIG. 4 is a diagram showing another embodiment (Example 4) of the present invention.
【図５】本発明の他の実施態様（実施例５）を示す図FIG. 5 is a diagram showing another embodiment (Example 5) of the present invention.
【図６】本発明の実施例５のベルト幅方向の断面図FIG. 6 is a sectional view in the belt width direction of Example 5 of the present invention.
【図７】高炉の原料装入コンベア上のスクラップ装入ホ
ッパーの概略側面図FIG. 7 is a schematic side view of a scrap charging hopper on a raw material charging conveyor of a blast furnace.
【図８】従来法により、原料上にスクラップを搭載した
場合の概略図FIG. 8 is a schematic diagram of a case where scrap is mounted on a raw material by a conventional method.
１ ゲート ２ ベルト ３ 原料 ４ ロストル ５ プレート ６ 門構え ７ 板のスクレイパー ８ スクレイパー支持部 ９ 下向きに凸形状スクレイパー １０ 鉄鉱石類装入ホッパー １１ スクラップ装入ホッパー １２ 高炉炉頂ホッパー １３ スクラップ １４ 水平キャリアローラ １５ 傾斜キャリアローラ １６ 可動水平キャリアローラ １７ 油圧シリンダー １８ 可動キャリアローラ 1 gate 2 belt 3 raw material 4 roster 5 plate 6 gate structure 7 plate scraper 8 scraper support 9 downward convex scraper 10 iron ore charging hopper 11 scrap charging hopper 12 blast furnace top hopper 13 scrap 14 horizontal carrier roller 15 Inclined carrier roller 16 Movable horizontal carrier roller 17 Hydraulic cylinder 18 Movable carrier roller
Claims (4)
方法において、前記ベルトコンベアのベルト上の下敷き
材の上にスクラップを積載して搬送することを特徴とす
るスクラップ搬送方法。1. A method of transporting scrap by a belt conveyor, wherein scrap is loaded and transported on an underlaying material on a belt of the belt conveyor.
を乗せた後、ベルト進行方向の下流部でベルト中央部の
下面から上方に変位を与え、ベルト上の下敷き材の堆積
形状を平滑にし、該下敷き材の上にスクラップを積載す
ることを特徴とする請求項１記載のスクラップ搬送方
法。2. An underlayment material is placed on a belt of a belt conveyor, and then a displacement is applied upward from a lower surface of a central portion of the belt at a downstream portion in a belt traveling direction to smooth a deposited shape of the underlayment material on the belt, The scrap transport method according to claim 1, wherein scrap is loaded on the underlayment material.
ベルト上に下敷き材を乗せる際に、ホッパー下部の切り
出しゲートに、ベルトの進行方向に平行に設置したロス
トルまたはプレートを介して下敷き材をベルト上に平坦
又は中央が凹になるように乗せ、該下敷き材の上にスク
ラップを積載することを特徴とする請求項１記載のスク
ラップ搬送方法。3. When the underlayment material is placed on the belt from a hopper provided on the belt conveyor, the underlayment material is placed on the belt through a cutting gate at the bottom of the hopper via a roster or a plate installed parallel to the traveling direction of the belt. The scrap conveying method according to claim 1, wherein the scrap is carried on the underlayment so that it is flat or concave so that scraps are loaded on the underlayment.
直に設置したスクレパーをベルト上の下敷き材の中央部
に接触させ、該下敷き材をベルトの進行方向に対して平
行で連続した平滑または中央部を凹にし、該下敷き材の
上にスクラップを積載することを特徴とする請求項１記
載のスクラップ搬送方法。4. A scraper installed vertically on the belt conveyer in the belt traveling direction is brought into contact with the central portion of the underlaying material on the belt, and the underlaying material is smooth or continuous in parallel with the traveling direction of the belt. The scrap conveying method according to claim 1, characterized in that the scraps are made concave and the scraps are loaded on the underlayment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12993194A JPH07165317A (en) | 1993-10-20 | 1994-05-20 | Scrap conveyance |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-284214 | 1993-10-20 | ||
| JP28421493 | 1993-10-20 | ||
| JP12993194A JPH07165317A (en) | 1993-10-20 | 1994-05-20 | Scrap conveyance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07165317A true JPH07165317A (en) | 1995-06-27 |
Family
ID=26465190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12993194A Withdrawn JPH07165317A (en) | 1993-10-20 | 1994-05-20 | Scrap conveyance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07165317A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533831A (en) * | 2004-04-20 | 2007-11-22 | ダウ・コーニング・コーポレイション | Aqueous dispersions of silicone polyether block copolymers |
| CN104138802A (en) * | 2014-07-28 | 2014-11-12 | 洛阳龙泽焦化有限公司 | Special conveying device for electric magnetic iron remover |
| JP2020147392A (en) * | 2019-03-12 | 2020-09-17 | 宇部興産株式会社 | Conveying method and conveying facility |
-
1994
- 1994-05-20 JP JP12993194A patent/JPH07165317A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533831A (en) * | 2004-04-20 | 2007-11-22 | ダウ・コーニング・コーポレイション | Aqueous dispersions of silicone polyether block copolymers |
| CN104138802A (en) * | 2014-07-28 | 2014-11-12 | 洛阳龙泽焦化有限公司 | Special conveying device for electric magnetic iron remover |
| JP2020147392A (en) * | 2019-03-12 | 2020-09-17 | 宇部興産株式会社 | Conveying method and conveying facility |
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| Date | Code | Title | Description |
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| A300 | Withdrawal of application because of no request for examination |
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