JPH0426443Y2 - - Google Patents
Info
- Publication number
- JPH0426443Y2 JPH0426443Y2 JP2378686U JP2378686U JPH0426443Y2 JP H0426443 Y2 JPH0426443 Y2 JP H0426443Y2 JP 2378686 U JP2378686 U JP 2378686U JP 2378686 U JP2378686 U JP 2378686U JP H0426443 Y2 JPH0426443 Y2 JP H0426443Y2
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- scrap
- converter
- plate
- filler
- 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.)
- Expired
Links
- 239000000945 filler Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000011343 solid material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 10
- 230000008439 repair process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、ピツト内で受けた鋼鉄屑を転炉設備
に傾動装入する転炉用スクラツプシユートに関す
るものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a scrap chute for a converter that tilts and charges steel scrap received in a pit into converter equipment.
（従来の技術）
スクラツプシユートは、製鋼操業上欠かせない
鉄鋼屑（以下、スクラツプという）を転炉設備に
装入する際に必要な設備である。即ち、転炉に隣
接して設けられたピツト内にスクラツプシユート
を設置して、ダンプにてスクラツプをスクラツプ
シユートに直接投入し、このスクラツプシユート
をクレーンで吊上げて転炉正面まで移送した後、
スクラツプシユートを傾動させてスクラツプを転
炉内に装入するのである。(Prior Art) A scrap chute is equipment necessary for charging steel scraps (hereinafter referred to as scrap), which are indispensable for steelmaking operations, into converter equipment. In other words, a scrap chute is installed in a pit adjacent to the converter, scrap is dumped directly into the scrap chute using a dump truck, and the scrap chute is lifted up by a crane and placed in front of the converter. After transporting to
The scrap chute is tilted to charge the scrap into the converter.
この種のスクラツプシユートは、従来、前面及
び上面が開放した長細箱形状であつて、その底板
は一枚構造とし、下側から適宜ステイフナーで補
強する構造であつた。 Conventionally, this type of scrapshoot has an elongated box shape with an open front and top surface, a single-piece bottom plate, and a structure in which the bottom plate is reinforced with appropriate stiffeners from below.
（考案が解決しようとする問題点）
スクラツプシユートにスクラツプを投入する場
合、ダンプから直接投入するので、投入時の衝撃
力が非常に大きく、従つて、その衝撃力によつて
底板が変形し、或いは底板に穴あきが発生するこ
とがあり、その補修に多大な時間、労力、費用を
要すると言う欠点があつた。(Problem that the invention aims to solve) When scrap is thrown into a scrap chute, it is thrown directly from the dump truck, so the impact force at the time of feeding is very large, and the bottom plate is deformed by the impact force. However, there is a drawback that holes may occur in the bottom plate, and repair thereof requires a great deal of time, effort, and cost.
（問題点を解決するための手段）
本考案は、このような従来の問題点に鑑み、ダ
ンプ直接打込みによる底板の変形、穴あきの防止
策として、スクラツプの投入される部位を二重構
造とすると共に、衝撃に充分耐える構造にし、補
修費の低減を図るものであつて、そのための具体
的手段として、ピツト内で受けた鋼鉄屑を転炉設
備に傾動装入する転炉用スクラツプシユートにお
いて、衝撃荷重が大でかつ振動の大なる部分の底
板の外側に、所定の間隙部をおいて外底板を配設
して二重構造にすると共に、この底板と外底板と
の間隙部に、衝撃応力及び／又は振動を小さくす
るための軽量固形物質から成る充填材を充填し裏
うちしたものであり、更に、二重構造の部分にお
いて、底板を嵌込み溶接構造とし、その嵌込み底
板の四周分割部を外底板より小さくし、嵌込み底
板の四周部に充填材の非充填ゾーンを配置したも
のである。(Means for Solving the Problems) In view of these conventional problems, the present invention uses a double structure at the part where the scraps are fed, as a measure to prevent deformation and holes in the bottom plate caused by direct driving of the dump truck. At the same time, we aim to reduce repair costs by making the structure sufficiently resistant to impact.As a specific means for this purpose, we have developed a converter scrap dump system in which steel scraps received in the pit are tilted and charged into the converter equipment. In this case, an outer bottom plate is installed with a predetermined gap on the outside of the bottom plate where the impact load is large and the vibration is large, creating a double structure, and the gap between this bottom plate and the outer bottom plate is , filled with a filler made of lightweight solid material to reduce impact stress and/or vibration, and furthermore, in the double structure part, the bottom plate is fitted and welded, and the bottom plate is fitted with a welded structure. The four-circumferential dividing portion is smaller than the outer sole plate, and non-filling zones of filler are arranged on the four circumferential portions of the fitted bottom plate.
（作用）
スクラツプシユート１はピツト内にあり、その
ダンプ打込部１０にダンプから直接にスクラツプ
を打込む。この場合、底板５は衝撃力の大きな衝
撃荷重を受けるが、ダンプ打込部１０の範囲に間
隙部をもつて配置された外底板６によつて補強さ
れると同時に、外底板６により衝撃力が吸収、緩
和されるので、底板５の変形、穴あきを防止でき
る。但し、間隙部は10mm以上にすることが望まし
い。即ち、10mm以下であれば、むしろ共振現象が
起こり、振動変位χ＝Asin（wt）は小になるもの
の、振動周期が著しく小になつて、疲労クラツク
が発生する惧れがあるためである。一方、間隙は
最大を100mmにしておけば、それをはるかに越え
る150mmにとる場合の耐力寿命と何等差はなく、
むしろクレーン容量や搬送重量より100mm以下に
しておくのが軽量化の点で良い。(Function) The scrap chute 1 is located in the pit, and scrap is driven directly from the dump truck into the dump driving section 10 thereof. In this case, the bottom plate 5 receives a large impact load, but it is reinforced by the outer bottom plate 6 arranged with a gap in the range of the dump driving part 10, and at the same time, the outer bottom plate 6 receives a large impact load. is absorbed and relaxed, so deformation and perforation of the bottom plate 5 can be prevented. However, it is desirable that the gap be 10 mm or more. That is, if it is less than 10 mm, a resonance phenomenon will occur, and although the vibration displacement χ=Asin (wt) will be small, the vibration period will become extremely small, and there is a risk that fatigue cracks will occur. On the other hand, if the maximum gap is set to 100 mm, there is no difference in the load-bearing life when the gap is set to 150 mm, which is much larger than that.
Rather, it is better to keep it 100mm or less than the crane capacity and transport weight in terms of weight reduction.
底板５と外底板６とを二重構造とすることによ
つて、仮に底板５の穴あきが生じても、スクラツ
プの一部が搬送中に落下することは全くない。 By forming the bottom plate 5 and the outer bottom plate 6 into a double structure, even if a hole occurs in the bottom plate 5, no part of the scraps will fall off during transportation.
また底板５と外底板６の間隙10〜100mmをゴム、
キヤスター等の軽量固形物質から成る充填材１１
で充填し、底板５を裏うちしておくことによつ
て、振動の大きさ、即ち、振幅を小にすることが
できる。 In addition, the gap 10 to 100 mm between the bottom plate 5 and the outer bottom plate 6 is filled with rubber.
Filler 11 made of lightweight solid material such as caster
By filling the bottom plate 5 with the inside of the base plate 5, the magnitude of the vibration, that is, the amplitude can be reduced.
二重構造の部分における充填材１１は、先ず底
板５の嵌込み底板５ａを外した状態で充填し裏う
ちした後、嵌込み底板５ａを嵌込んでその四周部
分を溶接するのであり、これによつて充填材１１
の品質を均一安定にし、かつ作業の工期、工数を
低減することができる。また嵌込み溶接構造とす
ることにより、底板５の最も損傷しやすい部分を
消耗品として常備しておき、いざと言う時に即座
に入れ替えでき、或いはできるような構造とな
る。なお、嵌込み底板５ａには、本体のSS−41
（一般構造用鋼板）と異材、例えば強靱鋼板13マ
ンガンオーステナイト鋼、或いは高高張力鋼板80
Kg／mm2級ハイテン材等を用いる方が良い。 The filling material 11 in the double structure part is first filled with the fitted bottom plate 5a of the bottom plate 5 removed and beaten, and then the fitted bottom plate 5a is fitted and its four circumferential parts are welded. Filler material 11
It is possible to make the quality uniform and stable, and reduce the work period and man-hours. Furthermore, by adopting the welded-in structure, the part of the bottom plate 5 that is most easily damaged is kept on hand as a consumable item, and can be replaced or replaced immediately in an emergency. In addition, the fitting bottom plate 5a has the SS-41 of the main body.
(general structural steel plate) and different materials, such as tough steel plate 13 manganese austenitic steel, or high-strength steel plate 80
Kg/mm It is better to use grade 2 high tensile strength material.
このようなスクラツプシユート１では、製作又
は補修費は通常の２倍位かかるが、品質寿命が10
倍以上と飛躍的に向上する。勿論、間隙部を粘土
やキヤスター等の粘着性不定形物質で充填した
り、枠組構造体２のステイフナーで支持すること
も可能である。 For such a scrap shoot 1, the production or repair cost is about twice that of normal ones, but the quality life is 10%.
A dramatic improvement of more than double. Of course, it is also possible to fill the gap with an adhesive amorphous material such as clay or caster, or to support it with a stiffener of the framework structure 2.
一方、嵌込み底板５ａの四周部の裏側には、そ
の溶接部分を中心に20〜100mmの非充填ゾーン１
２が形成されており、従つて、仮に充填材１１を
用いる場合でも、非充填ゾーン１２があるので、
嵌込み底板５ａの損傷劣化が顕著になり、新材と
取換えて修理する際のガス切断が可能である。即
ち、充填材１１がある部分では、ガス切断ができ
ないが、非充填ゾーン１２があるので、その切断
が容易に行ない得る。 On the other hand, on the back side of the four circumferential parts of the fitting bottom plate 5a, there is a non-filling zone 1 of 20 to 100 mm around the welded part.
2 is formed, so even if the filler 11 is used, there will be an unfilled zone 12.
The damage and deterioration of the fitted bottom plate 5a becomes noticeable, and gas cutting is possible when repairing by replacing it with a new material. That is, gas cutting cannot be performed in the area where the filler 11 is present, but since there is the unfilled zone 12, the gas cutting can be easily performed.
なお、非充填ゾーン１２の形成材料として、外
底板６へ平鋼１９を垂直にしてすみ肉溶接してお
けば、例えば異常なる大重量のクロツプ（スラブ
材を剪断した鋼片屑）やインゴツト材がダンプカ
ーの荷台から大きな落差をもつて、直接投入され
た場合、底板５に穴あき損傷が起り、裏うち材に
かなりの衝撃力が作用しても、外底板６への連鎖
反応を平鋼１９で水平分力として吸収する作用が
あり、従来に比して飛躍的に耐力、寿命が向上す
る。 If the flat steel 19 is vertically fillet welded to the outer bottom plate 6 as the material for forming the non-filling zone 12, for example, abnormally heavy crops (steel scraps obtained by shearing slab materials) or ingot materials can be used. If it is thrown directly from the dump truck loading platform with a large drop, the bottom plate 5 will be punctured and damaged, and even if a considerable impact force is applied to the backing material, a chain reaction to the outer bottom plate 6 will be prevented. 19 has the effect of absorbing it as a horizontal component of force, dramatically improving its yield strength and lifespan compared to conventional products.
（実施例）
以下、図示の実施例について本考案を詳述す
る。(Example) The present invention will be described in detail below with reference to the illustrated embodiment.
第１図及び第２図は転炉用スクラツプシユート
の全体を示し、第３図以下に各部の詳細を示す。 Figures 1 and 2 show the entire converter scrap chute, and Figures 3 and below show details of each part.
スクラツプシユート１は、ピツト内でダンプよ
り直接打込まれたスクラツプを受けて転炉設備に
傾動装入するためのものであつて、前面及び上面
が開放した細長箱形状に構成されている。即ち、
このスクラツプシユート１は枠組構造体２の一端
に後壁板３を溶接固着すると共に、断面Ｕ字状と
なるように側壁板４、底板５、外底板６等を溶接
固着して成る。 The scrap chute 1 is for receiving scrap directly driven from a dump truck in the pit and tiltingly charging it into the converter equipment, and is configured in the shape of a long and narrow box with an open front and top surface. . That is,
This scrapshoot 1 is constructed by welding and fixing a rear wall plate 3 to one end of a frame structure 2, and also welding and fixing a side wall plate 4, a bottom plate 5, an outer bottom plate 6, etc. so as to have a U-shaped cross section.
枠組構造体２は上下方向、横方向及び長手方向
のＨ形鋼７，８，９を組合せて断面Ｕ字状に構成
されている。そしてこの枠組構造体２の左右内側
に側壁板４が取付けられると共に、この左右の側
壁板４間に、その下部側を連結するように円弧状
の底板５が取付けられている。底板５の下側に
は、スクラツプ打込時の衝撃荷重が大でかつ振動
の大なる部分、即ち、第１図の斜線で示したダン
プ打込部１０に対応する部位に、所定の間隙部を
おいて円弧状の外底板６が配置されており、ダン
プ打込部１０が特に二重構造とされている。そし
て、この底板５と外底板６との間隙部には、衝撃
応力及び／又は振動の変位、速度、加速度を小な
らしめるための軽量固形物質から成る充填材１１
が充填し裏うちされている。この充填材１１とし
ては、ゴム、砂、チヤスター、レンガ、コンクリ
ートが適当である。二重構造の部分において、底
板５には平面視矩形状の穴が形成され、その穴部
に嵌込み底板５ａが嵌込まれて四周部で溶接し固
定されている。嵌込み底板５ａの四周分割部は、
外底板６より幾分小さくなつており、その嵌込み
底板５ａの四周部には、充填材１１を充填しない
非充填ゾーン１２が配されている。外底板６の外
側、及び底板の外側で外底板６のない部分は、長
手方向の平鋼１３、Ｈ形鋼１４等からなるステイ
フナーで補強されている。 The frame structure 2 is configured to have a U-shaped cross section by combining H-beams 7, 8, and 9 in the vertical, horizontal, and longitudinal directions. Side wall plates 4 are attached to the left and right inner sides of the frame structure 2, and an arc-shaped bottom plate 5 is attached between the left and right side wall plates 4 so as to connect their lower sides. A predetermined gap is provided on the lower side of the bottom plate 5 at a portion where the impact load and vibration during scrap driving are large, that is, the portion corresponding to the dump driving portion 10 shown with diagonal lines in FIG. An arcuate outer sole plate 6 is disposed at the center, and the dump driving portion 10 has a particularly double structure. In the gap between the bottom plate 5 and the outer bottom plate 6, a filler 11 made of a lightweight solid material is provided to reduce impact stress and/or vibration displacement, velocity, and acceleration.
has been filled and wiped out. As the filler 11, rubber, sand, chaster, brick, and concrete are suitable. In the double structure portion, a hole having a rectangular shape in plan view is formed in the bottom plate 5, and the bottom plate 5a is fitted into the hole and fixed by welding at the four circumferences. The four circumferential divisions of the fitted bottom plate 5a are as follows:
It is somewhat smaller than the outer sole plate 6, and non-filling zones 12 in which the filler 11 is not filled are arranged around the four circumferences of the fitting bottom plate 5a. The outside of the outer sole plate 6 and the portion outside the bottom plate where the outer sole plate 6 is not provided are reinforced with stiffeners made of longitudinal flat steel 13, H-shaped steel 14, and the like.
なお、１５は吊り具で、後壁板３の外側に設け
られており、クレーンのフツク１６が係脱自在で
ある。１７は吊り軸１８が係合する係合凹部であ
る。 In addition, 15 is a hanging tool, which is provided on the outside of the rear wall plate 3, and a hook 16 of a crane can be freely connected to and removed from the hanging tool. Reference numeral 17 denotes an engagement recess into which the hanging shaft 18 engages.
（考案の効果）
本考案によれば、スクラツプ投入時の過酷な衝
撃に耐えることができ、底板の損傷、穴あきが著
しく減少し、補修等に要する時間、労力、費用が
従来に比べて非常に少なくなり、その実用的効果
は極めて大である。(Effects of the invention) According to the invention, it is possible to withstand severe impact when scrap is input, and the damage and holes in the bottom plate are significantly reduced, and the time, labor, and cost required for repairs are significantly lower than before. The practical effect is extremely large.
図面は本考案の一実施例を示し、第１図は全体
の平面図、第２図は同正面図、第３図は第２図の
Ａ−Ａ矢視図、第４図は第２図のＢ−Ｂ矢視図、
第５図は第２図の矢視図、第６図は第３図のＣ
部の拡大図、第７図は第３図のＤ部の拡大図、第
８図は第３図のＥ−Ｅ矢視拡大図である。
５……底板、５ａ……嵌込み底板、６……外底
板、１０……ダンプ打込部、１１……充填材、１
２……非充填ゾーン。
The drawings show one embodiment of the present invention, in which Fig. 1 is an overall plan view, Fig. 2 is a front view of the same, Fig. 3 is a view taken along arrow A-A of Fig. 2, and Fig. 4 is a view of Fig. 2. BB arrow view of
Figure 5 is a view from the arrow in Figure 2, Figure 6 is C in Figure 3.
FIG. 7 is an enlarged view of section D in FIG. 3, and FIG. 8 is an enlarged view taken along the line E--E in FIG. 3. 5... Bottom plate, 5a... Fitting bottom plate, 6... Outer bottom plate, 10... Dump driving part, 11... Filler, 1
2...Non-filling zone.
Claims (1)
入する転炉用スクラツプシユートにおいて、衝
撃荷重が大でかつ振動の大なる部分の底板の外
側に、所定の間隙部をおいて外底板を配設して
二重構造にすると共に、この底板と外底板との
間隙部に、衝撃応力及び／又は振動を小さくす
るための軽量固形物質から成る充填材を充填し
裏うちしたこと特徴とする転炉用スクラツプシ
ユート。 (2) 二重構造の部分において、底板を嵌込み溶接
構造とし、その嵌込み底板の四周分割部を外底
板より小さくし、嵌込み底板の四周部に充填材
の非充填ゾーンを配置したことを特徴とする実
用新案登録請求の範囲第１項記載の転炉用スク
ラツプシユート。[Scope of Claim for Utility Model Registration] (1) In a converter scrap chute, in which steel scrap received in a pit is tilted and charged into converter equipment, the bottom plate of the part where the impact load is large and the vibration is large is An outer sole plate is disposed on the outside with a predetermined gap to create a double structure, and the gap between this sole plate and the outer sole plate is made of lightweight solid material to reduce impact stress and/or vibration. A scrap shoot for a converter, characterized in that it is filled with a filler consisting of: (2) In the double structure part, the bottom plate has a welded inset structure, the four circumferential divisions of the inset bottom plate are smaller than the outer bottom plate, and non-filling zones with filler are placed around the four circumferences of the inset bottom plate. A scrap shoot for a converter according to claim 1 of the utility model registration claim, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2378686U JPH0426443Y2 (en) | 1986-02-19 | 1986-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2378686U JPH0426443Y2 (en) | 1986-02-19 | 1986-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62136555U JPS62136555U (en) | 1987-08-28 |
| JPH0426443Y2 true JPH0426443Y2 (en) | 1992-06-25 |
Family
ID=30822405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2378686U Expired JPH0426443Y2 (en) | 1986-02-19 | 1986-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426443Y2 (en) |
-
1986
- 1986-02-19 JP JP2378686U patent/JPH0426443Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62136555U (en) | 1987-08-28 |
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