JPS606300B2 - Water slag manufacturing method - Google Patents

Description

【発明の詳細な説明】 本発明は、製錬過程において発生する多量の溶融炉連（
以下単に溶律と称す）からコンクリート用紬骨材を製造
する方法に係り、とりわけ天然砂と同等の品質と有する
硬質、繊密な水漣を安価に且つ安定的に提供せんとする
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to the treatment of a large amount of melting furnaces generated during the smelting process.
The present invention relates to a method of producing pongee aggregate for concrete from (hereinafter simply referred to as fusion), and in particular aims to stably provide hard and delicate water ripples with quality equivalent to natural sand at a low cost. .

最近、天然砂の供給量の不足及び品質の低下が問題化さ
れる中で、溶蓬の資源化「有効利用が急速に進められ天
然砂の代替とすべく各方面で活発に展開されているがー
近代の大型製鉄所の処理方式であるドライビット方式下
の水律方法（炉前方式）でこの様な硬質、繊密な水律を
製造するのは極めて困難であった。Recently, as the shortage of natural sand supply and deterioration in quality have become a problem, the effective use of molten sand as a resource has been rapidly progressing, and it is being actively developed in various fields as a substitute for natural sand. It was extremely difficult to produce such a hard and delicate water conditioner using the Dryvit method (furnace method), which is the processing method used in modern large steel mills.

即ち、出樺直後で温度の高い溶蓬を処理しなければなら
ないため（通常１４００〜１５００ｏｏ）内部発泡が防
止できず軽質の水蓬になりやすい。That is, since it is necessary to treat the molten yolk at a high temperature (usually 1,400 to 1,500 oo) immediately after the birch is taken out, internal foaming cannot be prevented and the molten yolk tends to be light.

従来方法を枚挙すれば次の様なものであった。The conventional methods are as follows.

■ 第１図に示される如く、落下してくる溶律１に５〜
８ｋ９′仇の高圧力水２を噴射し、上部から溶蓬１に沿
って圧力水３を噴射せしめる方法。‘Ｂ）第２図に示さ
れる如く、落下してくる溶４に周辺５から下向きに溶樺
４に向かってＶ字型に圧力水を噴射して急冷し、その後
更に圧力水６を噴射して冷却する方法。■ As shown in Figure 1, the falling melt 1 has 5~
8k9' A method of injecting high-pressure water 2 and then injecting pressure water 3 from the top along the melting pot 1. 'B) As shown in Fig. 2, pressure water is injected from the periphery 5 downwards toward the molten birch 4 in a V-shape to rapidly cool the falling molten 4, and then pressure water 6 is further injected. method of cooling.

（特願昭５３−９３９３１（鰭閥昭５５一２０２７ｙ号
公報）参照）に｝ 第３図に示される如く、溶漣樋７よ
り落下してくる溶漣に後方の高圧水ノズル８及び圧縮空
気ノズル９より‘まぼ同じ高さの位置より圧力水及び空
気を同時に吹付け、上部散水０１０より散水が交叉する
様にして噴射せしめて水陸樋１１上における流連に回転
運動を生ぜしめ冷却する方法。(Refer to Japanese Patent Application No. 53-93931 (Sho 55-2027Y)) As shown in Fig. 3, the high-pressure water nozzle 8 and compressed air at the rear are directed at the melt falling from the melt gutter 7. A method of cooling by simultaneously spraying pressurized water and air from the nozzle 9 at almost the same height position, and spraying the water in an intersecting manner from the upper water spray 010 to generate a rotational motion in the stream on the water-land gutter 11. .

しかし斯かる風の方法においては、常識を越えた高圧力
水で吹製するため溶漣に対する繋断力が過大となり溶漣
は極めて細かく破砕されるためも天然砂と同等の品質に
要求される絶乾比重「単位容積重量、吸水率及び相粒率
を同時に満足できるものではなく且つコンクリート用細
骨材としての歩留りも悪く満足できなかった。However, in this wind method, since the sand is blown with high-pressure water that exceeds common sense, the connecting force against the molten sand is excessive, and the molten sand is crushed into extremely fine pieces, which requires the same quality as natural sand. Absolute dry specific gravity "Unit volume weight, water absorption rate, and phase particle ratio could not be satisfied at the same time, and the yield as a fine aggregate for concrete was also poor.

脚の方法においては「その後Ｌ本発明者らが鋭意実験を
重ねていくうち圧力水温度の影響と受けやすく、水温の
低温度管理（６０ｏｏ未満）を必要とし「ク−！′ング
タワ−の常設を要すなど水樺設備の高騰を招き経済上、
保守管理上問題を残すこととなった。In the leg method, as the inventors conducted extensive experiments, they realized that the pressure water was easily affected by the temperature, and that low temperature control (less than 60 degrees) was required, and that a permanent installation of a cooling tower was found. Economically, this has led to a rise in the cost of water birch equipment, such as the need for
This left problems in terms of maintenance and management.

｛Ｃ｝の方法においても〜圧縮空気と圧力水が同時に作
用するため分散と同時に発泡が溶連に生じ勺その後回転
した水で冷却しても凶と同様に絶乾比重「単位容積重量
「吸水率及び粗粒率を同時に満足するものではなかった
。In method {C}, compressed air and pressurized water act simultaneously, so foaming occurs in the weld at the same time as dispersion, and even if it is subsequently cooled with rotating water, the absolute dry specific gravity (unit volume weight) remains the same. It was not possible to simultaneously satisfy both the grain ratio and the coarse grain ratio.

この様に、従来方法ではことごとく硬質し繊密な則ち「
絶乾比重〜単位容積重量Ｌ吸水率及び粗粒率を満足する
水連を技術的〜経済的に満足し得るものではなかった。In this way, conventional methods are all hard and delicate.
It has not been possible to satisfy technically and economically the water relationship that satisfies the absolute dry specific gravity to unit volume weight L water absorption rate and coarse particle rate.

本発明は「上記欠点に鑑み本発明者らが鋭意努力した結
果完成されたものでも天然砂と同等の品質として要求さ
れる物理的性質（総乾比車ト単位容積重量、吸水率）及
び粗粒率を同時に満足し〜且つクーリングタワー等を場
合によっては要しない低兼な水連設備に依り得られる技
術的、経済的に優れた新規な水律製造方法を提供せんと
するものであり、その特徴とする所は、落盤樋より落下
してくる溶連の後方より圧縮気体を噴射せしめて粗破砕
、飛散させた後「該飛散律に〜周囲の水平円周平面を少
なくとも等分割する点に配談された圧力水噴射源より、
圧力水を斜め下方に噴射せしめ破砕、粒状化する点にあ
る。以下本発明を具体的な実施例に従って詳述する。In view of the above-mentioned drawbacks, the present invention has been completed as a result of diligent efforts by the present inventors, but the physical properties (total dry ratio, volumetric weight per cart, water absorption rate) and coarseness required for the same quality as natural sand. The objective is to provide a new technically and economically superior water production method that satisfies the particle size at the same time and uses low-performance water connection equipment that does not require a cooling tower in some cases. The characteristic feature is that after compressed gas is injected from behind the weld metal falling from the cave gutter to roughly crush and scatter it, ``according to the scattering law ~ the surrounding horizontal circumferential plane is divided into at least equal parts. From the arranged pressure water injection source,
The point is that pressurized water is injected diagonally downward to crush and granulate. The present invention will be described in detail below according to specific examples.

第４図、第５図においても溶樺樋１′より落下してくる
温度１４６８〜ｉ４７ぞ０ト流量３ＴＯＮ′ｍｊｎの溶
律２′に後方のブロァ−等の圧縮空気噴射源３′より空
気量２０７鰭Ｊｍｉｎの圧縮空気４′を噴射し（スラグ
：空気（容積比）＝１奪２００）、溶律２′を粗破砕、
飛散させた後「溶律樋側壁裏′に可動自在に設けられた
圧力水ノズル６′より温度６２〜６５℃、流量３ｍＯＭ
ｍｉｎの圧力水を各々のノズル角度８０で両側より斜め
下方に噴射せしめ破砕、粒状化し硬質、繊密な水窪が得
られた。この後二次ノズル？′により流量９め／ｍｉｎ
温度６２〜６５ｑ０の搬送用圧力水を噴射し次工程の貯
溜槽に押流した。In Figs. 4 and 5, air is applied to the melt 2' falling from the melt birch gutter 1' at a temperature of 1468~i47 0 and a flow rate of 3 TON'mjn from the compressed air injection source 3' such as a blower at the rear. Inject compressed air 4' with an amount of 207 fins Jmin (slag: air (volume ratio) = 1 vs. 200) to roughly crush the melt 2'.
After scattering, a pressure water nozzle 6' movably installed on the back side wall of the melting gutter is used to spray water at a temperature of 62 to 65°C and a flow rate of 3 mOM.
Pressure water of min. was injected obliquely downward from both sides at each nozzle angle of 80 to crush and granulate the water, resulting in hard and delicate water cavities. Secondary nozzle after this? ’ makes the flow rate 9th/min
Pressure water for conveyance at a temperature of 62 to 65 q0 was injected to flow into a storage tank for the next process.

第４図、第５図より明らかな如く「本実施例では圧力水
ノズルは両側一個で且つ延在する噴射口形式のものを採
用しているが、等分割する点を３以上とすること及びノ
又は上記噴射口が１個の延在する形式でなく「噴射口を
独立し噴射群となすことを妨げるものでなく本発明の範
ちゆうに含まれるものである。As is clear from FIGS. 4 and 5, "In this embodiment, the pressure water nozzle has one extending injection port on each side, but the number of equally divided points is 3 or more. Alternatively, the above-mentioned injection port may not be in the form of one extending injection port, but it does not prevent the injection port from being formed into an injection group independently, and is well within the scope of the present invention.

又圧力水ノズル角度は特に限定されるものではないが「
少なくとも、斜め下方でなければ噴射水が交点で１部噴
水状を呈し、円滑な吹製化が図られず本発明の対象であ
る硬質繊密な水盤が得られない。Also, the pressure water nozzle angle is not particularly limited;
At least, unless it is diagonally downward, the jetted water will partially take on the shape of a fountain at the intersection, and smooth blowing will not be achieved, making it impossible to obtain the hard and delicate water basin that is the object of the present invention.

いづれにしても飛散溶律の敷断力が最大となる角度が最
も好ましいことは勿論である。本発明は溶漆樋からの溶
連を圧縮空気にて飛散させるためにその表面積が増大さ
れ「その直後に平面と等分割する点より斜め下方に噴射
された圧力水により破砕されると共に、この圧力水は一
点で交差するために再度交点で勢断を受け更なる適切な
粒状〜急冷作用にあづかることとなり本発明の対象であ
る硬質、繊密な水連に実に最適な製造方法と言えよう。
第１表にコンクリート用高炉達水漣砂ＪＩＳ原案〔蓮築
試験センター〕を表１ 法｛１｝ 上記数値は製品水鰹（粒調後）を示す。In any case, it goes without saying that the most preferable angle is the angle at which the breaking force of the scattering melt law is maximum. In the present invention, the surface area of the molten ream from the molten lacquer gutter is increased by using compressed air to scatter it. Since the pressurized water intersects at one point, it is subjected to stress again at the intersection point and undergoes further appropriate granular to quenching action, making this a manufacturing method that is truly optimal for the hard and delicate water bodies that are the subject of the present invention. Good morning.
Table 1 shows the JIS draft for blast furnace Darsui Rensand for concrete [Retsuki Testing Center].

第２表に本発明の実施条件をその他の例も含めて示す。
第３表にその時の物理的性質、樋粒率を示す。Table 2 shows the conditions for implementing the present invention, including other examples.
Table 3 shows the physical properties and gutter particle ratio at that time.

第２表第３表 難１｝ 上記試験は次に示す試験方法による。Table 2 Table 3 Difficulty 1} The above test is based on the test method shown below.

ｏ絶乾比重、吸水率：ＪＩＳＡＩｌＯ９ｏ単位容積重量
：ＪＩＳＡＩｌ０４ ｏ粗粒率；ＪＩＳＡＩｌ０２ 注【２１ 上記数値は製品水窪（粒調後）を示す。o Absolute dry specific gravity, water absorption rate: JISAIlO9o Unit volume weight: JISAIl04 o Coarse particle ratio: JISAIl02 Note [21] The above values indicate the product Mizukobo (after granulation).

上記第１表〜第３表より明らかな如く、本発明はことご
とくＪＩＳ原案を満足する陵れたものであるばかりか圧
力水温度は６ぴ０を越えるものであり時候によってはク
ーリングタワーの休止をしても差しつかえなくランニン
グコストの低減が図れる等経済的にも優れたものであり
、天然砂の供給絶対量が不足する中でその代替品として
供せられ「産業界に与える価値は極めて大である。As is clear from the above Tables 1 to 3, not only does the present invention completely satisfy the JIS draft, but the pressure water temperature exceeds 600m, so depending on the weather, the cooling tower may be shut down. It is also economically excellent as it can reduce running costs, and it is being offered as a substitute in the face of an absolute shortage of natural sand supplies. be.

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

第１図、第２図、第３図……・・・従釆法を示す略図、
第４図………本発明の方法を示す側面断面図、第５図…
……本発明の方法を示す正面断面図。 １……溶律「 ３…・・，圧力水、８・・・…高圧水ノ
ズル、１′・・…・溶藻磯、２′……溶律、３′・…・
・圧縮０空気噴射源「 ６′…・・・圧力水ノズル。 第１図第２図 第３図 第４図 第５図Figure 1, Figure 2, Figure 3...Schematic diagram showing the subordinate method,
Fig. 4...A side sectional view showing the method of the present invention, Fig. 5...
...A front sectional view showing the method of the present invention. 1... Melting law 3..., pressure water, 8... high pressure water nozzle, 1'... melting seaweed, 2'... melting law, 3'...
・Compressed air injection source "6'... Pressure water nozzle. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims] １ 溶滓樋より落下してくる溶滓の後方に設けられた圧
縮気体ノズルより該溶滓に圧縮気体を噴射せしめて同溶
滓を粗破砕、飛散させた後、前記圧縮気体ノズルの前方
に近接すると共に該飛散滓の両側に位置しかつ水平方向
に延在する噴射口形を有し、さらに共に該飛散滓側に向
けて下方に傾斜した圧力水ノズルより前記飛散滓に圧力
水を噴射せしめて微破砕、粒状化することを特徴とする
水滓製造方法。1 A compressed gas nozzle installed at the rear of the molten slag falling from the slag gutter injects compressed gas onto the slag to coarsely crush and scatter the slag, and then the slag is sprayed in front of the compressed gas nozzle. Pressurized water is injected onto the scattered slag from pressurized water nozzles which are located close to each other and are located on both sides of the scattered slag and extend horizontally, and which are both inclined downward toward the scattered slag side. A water slag production method characterized by finely crushing and granulating water slag.