JPS58141850A - Firing package - Google Patents

Abstract

PURPOSE:To make a firing package easy to handle and to enable quick and simple melt cutting by oxygen, by packing a mixture of an easy-to-oxidize alloy and granular iron in a combustible bag. CONSTITUTION:A mixture 6 of an easy-to-oxidize alloy and granular iron or a mixture 6 of an easy-to-oxidize alloy coated with one or both with fat and oil and granular iron is packed in a combustible bag 7, whereby a firing package 8 is constituted. The bag 7 is constituted by using, for example, PVC, paper, cloth, rubber, etc. if these materials do not retard the combustibility of the mixture 6 and can maintain the mixture 6 in a prescribed form. The firing package is thus made easy to handle, and even in the stage of melt cutting by oxygen in narrow places or where the operator is inaccessible, for example, in the stage of removing the base metal in the bottom of a hot and deep pan, the base metal is easily fired simply by charging the package 8 to the required part, whereby the melt-cutting work by oxygen is made easy.

Description

【発明の詳細な説明】 本発明は、着火包体に関するものである。[Detailed description of the invention] The present invention relates to an ignition envelope.

製鉄所等において溶ｖｃ、溶鋼、溶滓等を貯留、あるい
は運搬する各種の容益、例えば鍋、鋼車。Various facilities for storing or transporting molten VC, molten steel, slag, etc. in steel plants, etc., such as pots and steel cars.

７精錬容器には操業過程において地金が付着する。7. Bullion adheres to the refining vessel during the operation process.

而して、該地金の付着が生ずると種々の弊害が起きるた
め純酸素（以下Ｏ！と云う）を鍋管内よシ流し、０２と
鋼管との酸化反応熱を利用して付着地金を溶融除去する
方法（以下酸素溶断と云う）が通常行われている。前記
酸素溶断に際しては・まず銅管」先端において着火が行
われる。該着火は、鋼管自身の先端が溶融し滴下を開始
する瞬間を称している。If the base metal adheres, various problems will occur, so pure oxygen (hereinafter referred to as O!) is poured into the pot pipe, and the heat of the oxidation reaction between 02 and the steel pipe is used to remove the deposited base metal. A method of melting and removing (hereinafter referred to as oxygen cutting) is commonly used. During the oxygen cutting, ignition is first performed at the tip of the copper pipe. The ignition refers to the moment when the tip of the steel pipe itself melts and starts dripping.

本発明は、前述した如き酸素溶断等における着火を効率
的に行わしめるための着火包体に関するものである。The present invention relates to an ignition envelope for efficiently igniting in oxygen cutting, etc. as described above.

さて、第１図は前記酸素溶断の一例を示すものであって
、溶鋼を貯留し運搬する溶鋼鍋の断面構造図である。こ
の溶鋼鍋１は貯留した溶鋼の排出が終ると次回の溶銅を
受容するに先立ってそれを横転し、スライディングノズ
ル装置（以下ＳＮ装置と云う）２近傍に付着した地金３
の除去が前記酸素併重によって行われる。而してとのＭ
’ｌｔＲｍに際し１付層した地雀３．あるいはＢＮ装置
２近傍の温度が光方向い場合にはその残有熱によシ鍋管
４をＳＮ装置１ｔ２に臨ませ０２供給管５を介して０２
ケ流すことのみで着火が可能である。ところが例えは溶
銅の排出が終ってから酸素溶断に漕手するまでの時間か
焚くなる等して前記残有熱が低くなるとＮＩ記媒作のみ
でμ着火ができなくなる。Now, FIG. 1 shows an example of the oxygen cutting, and is a cross-sectional structural diagram of a molten steel ladle that stores and transports molten steel. After discharging the stored molten steel, the molten steel ladle 1 is turned over before receiving the next molten copper, and the base metal 3 adhering to the vicinity of the sliding nozzle device (hereinafter referred to as SN device) 2 is removed.
is removed by the above-mentioned oxygen coexistence. Then M
'ltRm 1 layered ground sparrow 3. Alternatively, if the temperature near the BN device 2 is low in the optical direction, the residual heat can be used to make the pan tube 4 face the SN device 1t2 and pass it through the 02 supply pipe 5.
It is possible to ignite just by letting the water flow. However, for example, if the residual heat becomes low due to the time from when the molten copper is discharged until the time when it is heated for oxygen cutting, μ ignition cannot be performed only by NI storage.

従って従来、かかる場合にはコークスあるいは新をＷｉ
況させて人徳を作シ、この大根の中に前記鋼管４ヶ押入
せしめると共に０２ケ流すことによって着火することが
御飯的であった◎しかしながら６１」に従来の膚火手段
でＬ、コークスや新の入手および火伽作り１での段取り
に時間や労力を賛するうえに肩入１での時間も灸く作条
性が愁い寺の多くの問題点を有して匹た＝ 本兜明６制込υ如き従来の問題点の抜本的な解決ｋｎす
ることｋその主たる目的とするものであム７さて、第２
図は本発明にかかる着火包体の一実施例を示す断面図で
ある。図において７は可燃性の袋体であシ、この袋体フ
内に易酸化性合金と粒状鉄を混合した混合物６を充填し
て着火包体８が構成されている。易酸化性合金とは僅か
な熱で燃焼し、酸化反応熱を生ずるもので、例えばＣａ
−Ｂ１合金、Ｍｇ系合金等を用いることが可能である。Therefore, conventionally, in such cases, coke or new Wi
It was customary to ignite the radish by forcing the four steel pipes into the radish and pouring it into the radish. In addition to admiring the time and effort required to obtain the hikari and set up the first stage of making hikari, the time required for making the first stage of moxibustion also caused many of the problems of temples where the quality of moxibustion was disappointing = Akira Honto 6 The main purpose of this is to fundamentally solve the conventional problems such as restraint.7 Now, the second
The figure is a sectional view showing one embodiment of the ignition envelope according to the present invention. In the figure, reference numeral 7 denotes a combustible bag, and a mixture 6 of an easily oxidizable alloy and granular iron is filled into the bag to form an ignition package 8. Easily oxidizable alloys are those that burn with a small amount of heat and generate heat of oxidation reaction.For example, Ca
-B1 alloy, Mg-based alloy, etc. can be used.

又、粒状鉄は前記易酸化性合金の反応熱によって直ちに
溶解し１火種としての機能を発揮するもので粒度がｌ〜
ａｍの粒状の鉄が好ましい。In addition, granular iron is immediately melted by the reaction heat of the easily oxidizable alloy and functions as a fire source, and the particle size is 1 to 1.
am granular iron is preferred.

本発明者等の経験では釘を製造する際に生ずる切粉（一
般にウェス力と称される）が前記機能を効率的に発揮す
るうえに、釘製造時における切削油が付着しておシ後述
する油脂被覆が施された結果となシ効果的であったみ ところで易酸化性合金および粒状鉄はそのいずれか、も
しくは両者を油脂被覆して用いると極めて着火性の良い
ことが確認された。別表は本発明に基つく実験結果の一
例を示すものである。本実験例は易酸化性合金および粒
状鉄の種類、配合割合等を種々変えた混合物６を用意し
、この混合物６を約１５０（１！程度・ビニール袋から
なる袋体７に充填し、て着火包体８を構成した。而して
前記着火包体８を第１図に示す溶鋼鍋１のＳＮ装置２内
に投入し、前記鋼管４による着火状況を調査したもので
ある。着火包体８が投入されたＳＮ装置２内における残
有熱は７００−１２００℃の範囲であった。同表より判
御するように０ａ−８ｉ合金のみを用いた試料Ａｌでは
着火は可能であるが強い発光を伴うと共に近傍の耐火物
を損傷せしめ実用的でなかった。これに対し易酸化性合
金と粒状鉄を混合せしめたもの（試料Ａ２〜試料屋６）
では・着火時間に若干の差異はあるもの＼、実用的着火
が可能であり・就中Ｃ！ａ−８ｉ合金とウィスカを重量
比５；５で混合した試料＆５は、５秒以内で１００％が
着火し、最も効率的な着火の行なえることが確認された
。In the experience of the present inventors, not only does the cutting powder (generally referred to as rag force) generated during nail manufacturing efficiently perform the above function, but also the cutting oil that adheres during nail manufacturing causes However, it was confirmed that easily oxidizable alloys and granular iron have extremely good ignitability when either or both of them are coated with oil. The attached table shows an example of experimental results based on the present invention. In this experimental example, a mixture 6 with various types and proportions of easily oxidizable alloy and granular iron was prepared, and about 150 (about 1!) of this mixture 6 was filled into a bag body 7 made of a plastic bag. An ignition envelope 8 was constructed.The ignition envelope 8 was then placed into the SN device 2 of the molten steel ladle 1 shown in FIG. 1, and the ignition situation by the steel pipe 4 was investigated.Ignition envelope 8 The residual heat in the SN device 2 into which No. 8 was introduced was in the range of 700-1200°C.As can be seen from the table, ignition was possible with sample Al using only the 0a-8i alloy, but it was strong. It was not practical because it emitted light and damaged nearby refractories.On the other hand, a mixture of easily oxidizable alloy and granular iron was used (Sample A2 to Sample Shop 6).
So, although there is a slight difference in the ignition time, practical ignition is possible, especially C! Sample &5, in which the a-8i alloy and whiskers were mixed at a weight ratio of 5:5, was 100% ignited within 5 seconds, and it was confirmed that the most efficient ignition could be performed.

表 以上のように本発明は易酸化性合金と粒状鉄の混合物、
あるいはいずれか一方、もしくは両者が油脂被覆された
易酸化性合金と粒状鉄の混合物を可燃性の袋体７に充填
し、着火包体８を構成したもので、この着火包体８の提
供により酸素溶断を行なう場合、地金付着部の残有熱が
僅かであっても先端より０２を噴射する鋼管４０着火が
極めて短時間で、かつ簡単に行えるようになった。而し
て袋体７としては、混合物６の前記燃焼性を阻害するこ
となく、かつ混合物６を所定の形態で保持できるもので
あれば、例えばビニール、紙、布、ゴム等を用いて構成
すればよい。ところで前記実施例はいずれも地金付着部
が所定以上の熱（易酸化性合金の発火点以上の温度）を
有する部分に適用可能な着火包体８について説明したが
例えば第３図に示すように袋体７に導火帯９を連結し、
この導火帯９全備えた袋体７に前記混合物６を充填して
着火包体８０を構成すれば残有熱が所定以下で声っても
効率的な着火を行わしめることが可能である。即ち導火
帯６を約２４０〜４２０℃で着火する、例えば木綿、麻
、藁等で構成し地金付着部の僅かな残有熱あるいは発火
具等の他の熱源によって導火帯９を着火させた後、導火
帯９を介して袋体フおよび混合物６を燃焼させることに
よって前述の鋼管番の着火が可能となる。As shown in the table above, the present invention is a mixture of an easily oxidizable alloy and granular iron,
Alternatively, the ignition package 8 is constructed by filling a flammable bag 7 with a mixture of an easily oxidizable alloy and granular iron, in which one or both of them are coated with oil or fat. When oxygen cutting is performed, even if there is only a small amount of residual heat in the base metal adhesion part, the steel pipe 40 can be ignited in an extremely short time and easily by injecting 02 from the tip. The bag 7 may be made of, for example, vinyl, paper, cloth, rubber, etc., as long as it does not impede the combustibility of the mixture 6 and can hold the mixture 6 in a predetermined form. Bye. By the way, in all of the above embodiments, the ignition envelope 8 was described which can be applied to a part where the metal attachment part has a heat above a predetermined value (temperature above the ignition point of an easily oxidizable alloy). Connect the fuse 9 to the bag body 7,
By filling the mixture 6 into the bag 7, which is fully equipped with the fuse cord 9, to form the ignition package 80, it is possible to efficiently ignite even if the residual heat is below a predetermined value. . That is, the fuse cord 6 is ignited at about 240 to 420° C., for example, the fuse cord 9 is ignited by the slight residual heat of the part made of cotton, linen, straw, etc. to which the bare metal is attached, or by other heat sources such as a fire starter. After that, the bag and the mixture 6 are combusted through the fuse cord 9, thereby making it possible to ignite the above-mentioned steel pipe number.

以上のように本発明の着火包体８は、混合物６を袋体マ
によって任意の大きさ、形状のものに構成できることか
ら、その取扱いが極めて簡単であるうえに前記第１図に
示すＳＮ装置２の如き狭隘な部分や作業者が近寄シ難い
残有熱を有し深底の鍋底等の地金除去に際しても着火包
体８を所定部に単に投入するのみで鋼管４の着火が容易
に行え、従って酸素溶断作業が迅速にかつ簡単に行える
ようになった。As described above, the ignition package 8 of the present invention allows the mixture 6 to be formed into any size and shape by the bag, and is extremely easy to handle. Even when removing bare metal from narrow areas such as 2 or the bottom of a deep pot that has residual heat that is difficult for workers to access, the steel pipe 4 can be easily ignited by simply inserting the ignition envelope 8 into the designated area. Therefore, oxygen cutting work can now be performed quickly and easily.

以上のように本発明の実用的効果は非常に大である。As described above, the practical effects of the present invention are very large.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、周知の溶鋼鍋におけるＳＮ装置部の酸素溶断
作業状況を示す断面構造図、第２図および第３図は、本
発明に基づく着火包体のそれぞれ異なった実施例を示す
断面図である。 ■・・・・・・・溶鋼鍋 ２　・・・・・・ＳＮ装置 ３・・・・・・・地金 ４・・・・・・・鋼管 ５・・・・・・　・０２供給管 ６・・・・・・・混合物 ７・　　　・・・袋体 ８．８０・・・・・・着火包体 ９・・・・・・・導火帯 出　願　人　新日本製鐵株式会社 ２４１FIG. 1 is a cross-sectional structural diagram showing the oxygen melting operation of the SN device in a well-known molten steel ladle, and FIGS. 2 and 3 are cross-sectional diagrams showing different embodiments of the ignition envelope according to the present invention. It is. ■・・・・・・Molten steel ladle 2・・・・・・SN device 3・・・・・・Basic metal 4・・・・Steel pipe 5・・・・・・・02 supply pipe 6 ...Mixture 7 ...Bag 8.80 ...Ignition envelope 9 ...Fuse cord application person Nippon Steel Corporation 241

Claims (3)

【特許請求の範囲】[Claims] （１）易酸化性合金と粒状鉄の混合物が充填されている
可燃性袋体からなることを特徴とする着火包体。(1) An ignition envelope comprising a combustible bag filled with a mixture of an easily oxidizable alloy and granular iron. （２）易酸化性合金および粒状鉄のいずれか、もしくは
両者が油脂被覆されておシ、かつ両者の混合物が充填さ
れている可燃性袋体からなることを特徴とする着火包体
。(2) A flammable bag comprising an easily oxidizable alloy, granular iron, or both coated with oil and fat, and filled with a mixture of the two. （３）易酸化性合金と粒状鉄の混合物が充填され、かつ
導火帯を備えた可熱性袋体からなることを特徴とする着
火包体。(3) An ignition package comprising a heatable bag filled with a mixture of an easily oxidizable alloy and granular iron and equipped with a fuse cord.