JPH02175801A - Apparatus for manufacturing metal granular body - Google Patents
Apparatus for manufacturing metal granular bodyInfo
- Publication number
- JPH02175801A JPH02175801A JP33213288A JP33213288A JPH02175801A JP H02175801 A JPH02175801 A JP H02175801A JP 33213288 A JP33213288 A JP 33213288A JP 33213288 A JP33213288 A JP 33213288A JP H02175801 A JPH02175801 A JP H02175801A
- Authority
- JP
- Japan
- Prior art keywords
- chute plate
- molten metal
- cooling water
- disk
- crucible
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 35
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 239000008187 granular material Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 abstract 2
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002932 luster Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は金属粒状体の製造装置に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to an apparatus for producing metal granules.
従来の技術
金属の粒状体は、例えばコンクリート板などに混合され
て地中埋設管の周囲に配設され、この地中埋設管か路面
カッターなどにより誤り、て切断されないように保護す
る用途などに使用される。この種の金属粒状体としては
、粒径が５〜２０ｍ＋、ビッカース硬さが５００ｔｌｖ
以上でがっその形状に鋭利な突部や空洞がないことが望
まれる。従来のこの種の金属粒状体の製造装置としては
、鋳鉄などの原料となる金属を溶融、落下させるととも
に、この金属溶湯が落下供給される箇所から水槽へ下方
に傾斜するシュート板を設け、かつこのシュート板の上
面に冷却水を流す冷却水配管を設け、金属溶湯をシュー
ト板上で急冷して粒状化するものであった。Conventional technology Metal granules are mixed with concrete plates and placed around underground pipes to protect the underground pipes from being accidentally cut by road cutters. used. This type of metal granule has a particle size of 5 to 20 m+ and a Vickers hardness of 500 tlv.
It is desired that there be no sharp protrusions or cavities in the shape of the gasket. Conventional equipment for producing metal granules of this type melts and drops raw metal, such as cast iron, and is equipped with a chute plate that slopes downward from a point where the molten metal is fed into a water tank. A cooling water pipe for flowing cooling water was provided on the top surface of this chute plate, and the molten metal was rapidly cooled and granulated on the chute plate.
発明が解決しようとする課題
しかしながら、この種の金属粒状体の製造装置によれば
、金属溶湯がシュート板上に落下した際、金属溶湯が良
好には分散せず、歩留りが悪かった。Problems to be Solved by the Invention However, with this type of metal granule manufacturing apparatus, when the molten metal falls onto the chute plate, the molten metal is not well dispersed, resulting in poor yield.
本発明は上記課題を解決するもので、良好な歩留りが得
られる金属粒状体の製造装置を提供することを目的とす
るものである。The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus for producing metal granules that can provide a good yield.
課題を解決するための手段
上記課題を解決するために本発明は、金属溶湯が落下供
給される箇所から水槽へ下方に傾斜するシュート板を設
け、このシュート板の上面に冷却水を流す冷却水配管を
設け、上記シュート板の溶湯落下箇所に、その水槽側箇
所が下方に傾斜された姿勢で配置されて回転する円盤を
設けたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a chute plate that slopes downward from a point where molten metal is dropped and supplied to a water tank, and a cooling water system that allows cooling water to flow on the upper surface of this chute plate. Piping is provided, and a rotating disk is provided at the location of the chute plate where the molten metal falls, with its portion facing the water tank slanted downward.
作用
上記構成により、円盤上に落下された溶湯は円盤の遠心
力でシュート板上に良好に分散しな、から飛散する。し
たがって、その後シュート板上の冷却水により急冷され
る粒状体の歩留りは良好となる。Effect: With the above configuration, the molten metal dropped onto the disk is not well dispersed on the chute plate due to the centrifugal force of the disk, but is instead scattered. Therefore, the yield of the granules that are then rapidly cooled by the cooling water on the chute plate is good.
実方艶例 以下、本発明の一実施例を図面に基づき説明する。Example of real luster Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図および第２図は本発明の一実施例の金属粒状体の
製造装置を示す側面図および正面図である。第１図およ
び第２図において、１は支持台２上に配置されて上方の
取ｊＩＩｉ１（図示せず）から鋳鉄の溶湯が入れられる
るつぼで、底部に例えば直径９噛の孔が設けられている
とともに近傍に設けられた加熱用バーナ３により溶湯が
固まらないように熱せられる。４はるつぼ１から適当距
離能れた箇所に配置された水槽であり、るつぼ１の下方
位置から水４１！４にかけては、水４１４側が下方に傾
斜する鋼鉄製のシュート板５が設けられている。また、
このシュート板５におけるるつぼ１の下方位置には鋼鉄
製の円盤６が、その水槽側箇所が下方に傾斜された姿勢
で配置され、この円盤６は、この下方に配設されたモー
タ７により回転されるようになっている。シュート板５
の上端には、第３図にも示すように、シュート板５の上
面全体に冷却水を流す３木のシュート板用冷却水配管８
が幅方向に並んで設けられ、また円盤６の−Ｆ下にも、
上方から冷却水を流して円盤６を冷却する円盤用冷却水
配管９，１０と下方から冷却水を噴出して円盤６を冷却
する円盤用冷却水配管１１とが設けられている。なお、
第３図に示すように、円盤６を上方から冷却する円盤用
冷却水配管９，１０はその冷却水が円盤６における溶湯
落下箇所より円盤回転方向上流側位置に噴出されるよう
に配置されている。また、円盤６を下方から冷却する円
盤用冷却水配管１１は円形に２列に配設され、上面に複
数の噴出口１１ａが形成されており、円盤６を下方から
均等に冷却するようになっている。また、１２は追加シ
ュート板で、必要に応じて設けられる。FIGS. 1 and 2 are a side view and a front view showing an apparatus for producing metal granules according to an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 1 denotes a crucible placed on a support 2 and into which molten cast iron is poured from an upper chamber 1 (not shown), and a hole with a diameter of, for example, 9 holes is provided in the bottom. At the same time, the molten metal is heated by a heating burner 3 provided nearby to prevent it from solidifying. 4 is a water tank placed at a suitable distance from the crucible 1, and from the lower position of the crucible 1 to the water 41!4, a steel chute plate 5 is provided with the water 414 side slanting downward. . Also,
A steel disc 6 is placed below the crucible 1 on the chute plate 5 with its water tank side slanted downward, and the disc 6 is rotated by a motor 7 disposed below. It is now possible to do so. Shoot board 5
At the upper end, as shown in FIG.
are provided side by side in the width direction, and also below -F of the disk 6,
Disk cooling water pipes 9 and 10 are provided to cool the disc 6 by flowing cooling water from above, and a disc cooling water pipe 11 is provided to cool the disc 6 by jetting cooling water from below. In addition,
As shown in FIG. 3, the disk cooling water pipes 9 and 10 that cool the disk 6 from above are arranged so that the cooling water is spouted from the point where the molten metal falls on the disk 6 to a position upstream in the direction of rotation of the disk. There is. In addition, the disk cooling water pipes 11 that cool the disk 6 from below are arranged in two circular rows, and a plurality of jet ports 11a are formed on the top surface, so that the disk 6 is evenly cooled from below. ing. Further, 12 is an additional chute plate, which is provided as required.
上記構成において金属粒状体を製造する場合は、予め、
加熱用バーナ３によりるつぼ１を１１００’Ｃ以上に加
熱し、円盤６をモータ７により回転するとともにシュー
ト板用冷却水配管８および円盤用冷却水配管１０．１１
．１２から冷却水を流す。この状態で取鍋から溶湯をる
つぼ１に８分目はど入れると、るつぼ１の孔部より、回
転している円盤６上に溶湯が落下し、溶湯は円盤６の遠
心力によりシュート板５上に良好に飛散する。そして、
この溶湯はシュート板５上を流れる冷却水により急冷さ
れ粒状化し、水槽４内へ流下する。ここで、Ｃ＝３．４
±０．６％、Ｓ ｉ ＝２．３±０．１％の鋳鉄の溶湯
を用いて、るつぼ１内に溶湯が残らず、かつシュート板
５上で溶湯が良好に流れるように、るつぼ１の孔径ｄを
９ ｍｍ、シュート板用冷却水配管８の合計冷却水量を
３．６Ω／秒、円盤用冷却水配管９，１０１１の合計冷
却水量を２，０２７秒とした場合における所定の粒径お
よび硬度が得られる最適値を、溶湯落下高さトＩ、円盤
６の回転数、円盤６の地表面に対する角度θ１ （円盤
角度という）、シュート板５の地表面に対する角度θ２
を変化させて求めた。その結果、溶湯落下高さＨを５０
０〜６００ ｍｍ、円盤回転数を１０ｒｐｉ 、円盤角
度θ１を２０°、シュート板角度を１５°とした場合に
歩留りが７０％となる良好なデータを得た。When manufacturing metal granules with the above configuration, in advance,
The crucible 1 is heated to 1100'C or more by the heating burner 3, and the disc 6 is rotated by the motor 7, and the chute plate cooling water pipe 8 and the disc cooling water pipe 10.11
．． Cooling water flows from 12. In this state, when the molten metal is poured from the ladle into the crucible 1 for the eighth time, the molten metal falls from the hole of the crucible 1 onto the rotating disk 6, and the molten metal is transferred to the chute plate 5 due to the centrifugal force of the disk 6. Spreads well on top. and,
This molten metal is rapidly cooled by the cooling water flowing on the chute plate 5, becomes granular, and flows down into the water tank 4. Here, C=3.4
Using molten cast iron of ±0.6% and S i =2.3±0.1%, the crucible 1 The predetermined particle size when the hole diameter d of is 9 mm, the total amount of cooling water in the cooling water piping 8 for the chute plate is 3.6 Ω/sec, and the total amount of cooling water in the cooling water piping 9, 1011 for the disk is 2,027 seconds. and the optimum value for obtaining the hardness.
was obtained by changing. As a result, the molten metal falling height H was reduced to 50
0 to 600 mm, the disk rotation speed was 10 rpi, the disk angle θ1 was 20 degrees, and the chute plate angle was 15 degrees, good data was obtained in which the yield was 70%.
発明の効果
以上のように本発明によれば、円盤により、落下する溶
湯をシュート板上に良好に飛散させることができるので
、粒状体の製造に際して良好な歩留りが得られる。Effects of the Invention As described above, according to the present invention, the falling molten metal can be well scattered onto the chute plate by the disk, so that a good yield can be obtained when producing granules.
第１図は本発明の一実施例の金属粒状体の製造装置を示
す側面図、第２図は同製造装置を示す正面図、第３図は
同！ｉ！遣装置の冷却水配管等を示す平面図である。
４・・・水槽、５・・・シュート板、６・・・円盤、７
・・・モータ、８・・・シュート板用冷却水配管、９．
１０．１１・・円盤用冷却水配管。
代理人 森 本 義 弘FIG. 1 is a side view showing an apparatus for manufacturing metal granules according to an embodiment of the present invention, FIG. 2 is a front view showing the same manufacturing apparatus, and FIG. 3 is the same! i! FIG. 4...Aquarium, 5...Chute board, 6...Disc, 7
...Motor, 8...Cooling water piping for chute plate, 9.
10.11...Cooling water piping for disk. Agent Yoshihiro Morimoto
Claims (1)
斜するシュート板を設け、このシュート板の上面に冷却
水を流す冷却水配管を設け、上記シュート板の溶湯落下
箇所に、その水槽側箇所が下方に傾斜された姿勢で配置
されるとともに、回転することにより落下溶湯をその遠
心力で上記シュート板上に飛散させる円盤を設けた金属
粒状体の製造装置。1. Provide a chute plate that slopes downward from the point where the molten metal falls and is supplied to the water tank, provide a cooling water pipe to flow cooling water on the top surface of this chute plate, and install a chute plate that slopes downward from the point where the molten metal falls and is supplied to the water tank side. An apparatus for producing metal granules, which is provided with a disk that is arranged in a downwardly inclined position and that rotates to scatter falling molten metal onto the chute plate using its centrifugal force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33213288A JPH02175801A (en) | 1988-12-27 | 1988-12-27 | Apparatus for manufacturing metal granular body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33213288A JPH02175801A (en) | 1988-12-27 | 1988-12-27 | Apparatus for manufacturing metal granular body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02175801A true JPH02175801A (en) | 1990-07-09 |
Family
ID=18251511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33213288A Pending JPH02175801A (en) | 1988-12-27 | 1988-12-27 | Apparatus for manufacturing metal granular body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02175801A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010283A (en) * | 1973-06-02 | 1975-02-01 | ||
| JPS58199647A (en) * | 1982-05-14 | 1983-11-21 | Aisin Seiki Co Ltd | Production of amorphous alloy |
| JPS62112709A (en) * | 1985-11-12 | 1987-05-23 | Sumitomo Electric Ind Ltd | Production of metallic powder |
-
1988
- 1988-12-27 JP JP33213288A patent/JPH02175801A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5010283A (en) * | 1973-06-02 | 1975-02-01 | ||
| JPS58199647A (en) * | 1982-05-14 | 1983-11-21 | Aisin Seiki Co Ltd | Production of amorphous alloy |
| JPS62112709A (en) * | 1985-11-12 | 1987-05-23 | Sumitomo Electric Ind Ltd | Production of metallic powder |
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