JP2006102652A - Method for treating granular body - Google Patents
Method for treating granular body Download PDFInfo
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- JP2006102652A JP2006102652A JP2004293206A JP2004293206A JP2006102652A JP 2006102652 A JP2006102652 A JP 2006102652A JP 2004293206 A JP2004293206 A JP 2004293206A JP 2004293206 A JP2004293206 A JP 2004293206A JP 2006102652 A JP2006102652 A JP 2006102652A
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- granular material
- side wall
- sidewall
- rotary vessel
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Abstract
Description
本発明は、粒状体の処理方法に係り、より詳しくは、水平面内で回転可能に配設され環状で上広がり状を成しかつ先端に堰を形成した側壁を有する回転槽と、この回転槽の側壁上を相対的に転動可能に配設されかつ加圧手段によって前記回転槽の側壁方向へ加圧されたロールとによって粒状体を処理する方法に関する。 The present invention relates to a method for treating a granular material, and more specifically, a rotary tank having a side wall that is rotatably arranged in a horizontal plane and has an annular and upwardly extending shape and a weir formed at the tip, and the rotary tank It is related with the method of processing a granular material with the roll arrange | positioned so that it can roll relatively on the side wall of this, and was pressurized to the side wall direction of the said rotation tank by the pressurization means.
従来、例えば、高品質耐火物としての電融マグネシアや、金属溶解時に不純物として発生するスラグは、粉砕処理して粒状体化したのち、粒状体の粒子の表面から不純物を剥離除去して他の材料の原料として再利用することが一般に行われている。
しかし、これら粒状体の粒子の表面から不純物を剥離除去するのに好適な方法はまだ存在せず、粒状体の粒子の表面から不純物を剥離除去するのに好適な方法が関連業界から要請されていた。
Conventionally, for example, electrofused magnesia as a high-quality refractory and slag generated as an impurity during metal dissolution are pulverized and granulated, and then the impurities are peeled and removed from the surface of the granular particles. It is generally performed to reuse the material as a raw material.
However, there is still no suitable method for stripping and removing impurities from the surface of these granular particles, and a suitable method for stripping and removing impurities from the surface of the granular particles has been requested by the related industry. It was.
解決しようとする問題点は、粒状体の粒子の表面から不純物を剥離除去するのに好適な方法はまだ存在しない点である。
The problem to be solved is that there is still no suitable method for stripping and removing impurities from the surface of the granular particles.
上記の課題を解消するために本発明における粒状体の処理方法は、水平面内で回転可能に配設され環状で上広がり状を成しかつ先端に堰を形成した側壁を有する回転槽と、この回転槽の側壁上を相対的に転動可能に配設されかつ加圧手段によって前記回転槽の側壁方向へ加圧されたロールとによって粒状体を処理する方法であって、前記回転槽の回転によりこれに収納された前記粒状体に遠心力を付与して粒状体を前記回転槽内の周縁方向へ向けたのち前記側壁上を上方へ移動させ、当該粒状体を側壁と前記ロールとによって圧縮して、粒状体の粒子同士を相互に擦ることを特徴とする。
In order to solve the above-mentioned problem, a method for treating a granular material according to the present invention includes a rotating tank that is rotatably arranged in a horizontal plane, has a ring-like shape, and has a side wall with a weir formed at the tip. A method of treating a granular material with a roll disposed on a side wall of a rotary tank so as to be relatively rollable and pressurized by a pressurizing unit toward the side wall of the rotary tank. Then, centrifugal force is applied to the granular material accommodated therein to move the granular material in the peripheral direction in the rotating tank and then move upward on the side wall, and the granular material is compressed by the side wall and the roll. The particles of the granular material are rubbed against each other.
なお、本発明においては粒状体として電融マグネシアやスラグに適用すると有効である。 In the present invention, it is effective when applied to electrofused magnesia or slag as a granular material.
上記の説明から明らかなように本発明は、水平面内で回転可能に配設され環状で上広がり状を成しかつ先端に堰を形成した側壁を有する回転槽と、この回転槽の側壁上を相対的に転動可能に配設されかつ加圧手段によって前記回転槽の側壁方向へ加圧されたロールによって粒状体を処理する方法であって、前記回転槽の回転によりこれに収納された前記粒状体に遠心力を付与して粒状体を前記回転槽内の周縁方向へ向けたのち前記側壁上を上方へ移動させ、当該粒状体を側壁と前記ロールとによって圧縮して、粒状体の粒子同士を相互に擦るから、粒状体の粒子の表面から不純物を適確にして容易に剥離して除去することができるなどの優れた実用的効果を奏する。
As is apparent from the above description, the present invention provides a rotating tank having a side wall which is disposed so as to be rotatable in a horizontal plane, has a ring shape and is widened, and has a weir formed at the tip thereof, and the side wall of the rotating tank. A method of treating a granular material with a roll that is disposed so as to be relatively rollable and is pressurized toward a side wall of the rotating tub by a pressurizing means, wherein the granular material is accommodated in the rotating tub by rotation. Particles of the granular material are obtained by applying centrifugal force to the granular material to move the granular material in the peripheral direction in the rotary tank and then moving the granular material upward on the side wall and compressing the granular material by the side wall and the roll. Since they are rubbed against each other, excellent practical effects are achieved such that impurities can be easily peeled off and removed from the surface of the particles of the granular material.
本発明を適用した粒状体の処理方法の最良の形態について説明する。本発明の実施に使用する粒状体の処理装置においては、図１に示すように、上下方向へ指向する円筒状の上部と漏斗状の下部とで成るカバー1における上端部には、漏斗状の原料投入部材2が装着してあり、前記カバー1の内部の中央付近には、環状で上広がり状を成しかつ先端に堰を形成した側壁を有する回転槽3が、回転駆動機構4を介して水平面内で回転可能に配設してある。さらに、前記カバー1の内部の中段付近には２個のロール5・5が回転軸6・6を介して前記回転槽3の側壁上を転動可能にして配設してあり、これら回転軸6・6は支持部材7・7の先端に装着してある。これら2個の支持部材7・7は前記カバー1に軸支された回転軸8・8の一端に装着してあり、これら回転軸8・8の他端にはアーム9・9の上端が固着してある。これら2個のアーム9・9の下端間には加圧手段としてのシリンダ10がピン支持して装架してあり、シリンダ10には圧力比例弁11を介して圧縮空気源12が接続してあって、シリンダ10は、圧縮空気源12からの圧縮空気が圧力比例弁11によってその圧力を制御されて供給されることにより、前記２個のロール5・5が前記回転槽3の側壁の内面に対して押圧する力を変更できるようになっている。
The best mode of the processing method of the granular material to which this invention is applied is demonstrated. In the granular material processing apparatus used in the practice of the present invention, as shown in FIG. 1, the upper end portion of the cover 1 composed of a cylindrical upper portion and a funnel-shaped lower portion directed in the vertical direction has a funnel-like shape. A raw material charging member 2 is mounted, and in the vicinity of the center of the inside of the cover 1, a rotating tank 3 having a side wall with a ring shape and an upwardly spreading shape and a weir at the tip is provided via a rotation drive mechanism 4. It is arranged so as to be rotatable in a horizontal plane. Further, two rolls 5 and 5 are arranged near the middle stage of the cover 1 so as to be able to roll on the side wall of the rotating tub 3 via rotating shafts 6 and 6. 6 and 6 are attached to the tips of the support members 7 and 7. These two support members 7 and 7 are attached to one end of the rotating shafts 8 and 8 supported by the cover 1, and the upper ends of the arms 9 and 9 are fixed to the other ends of the rotating shafts 8 and 8, respectively. It is. A cylinder 10 as a pressurizing means is mounted between the lower ends of these two arms 9 and 9 with a pin supported, and a compressed air source 12 is connected to the cylinder 10 via a pressure proportional valve 11. In the cylinder 10, the compressed air from the compressed air source 12 is supplied with the pressure controlled by the pressure proportional valve 11, so that the two rolls 5 and 5 are connected to the inner surface of the side wall of the rotary tank 3. Can be changed.
次に,このように構成した粒状体の処理装置を用いて粒状体を処理する手順について述べると、回転駆動機構4の駆動により回転槽3を所要の回転数で回転させた状態にして、処理すべき粒状体を原料投入部材2から投入すると、投入された粒状体は、回転槽3の回転により遠心力を付与されて回転槽3内の周縁方向へ向け移動したのち側壁上を上昇し、その後、回転槽3の側壁とロール4・4とによって圧縮されて、粒子同士を相互に擦られる。そして、ロール4・4による押圧力を色々変えることにより、粒状体の粒子は、球状化にされたり、表面の不純物を剥離されたりする。 Next, the procedure for processing the granular material using the granular material processing apparatus configured as described above will be described. In the state where the rotary tank 3 is rotated at the required number of rotations by driving the rotation drive mechanism 4. When the granular material to be charged is charged from the raw material charging member 2, the charged granular material is given centrifugal force by the rotation of the rotating tank 3 and moves toward the peripheral edge in the rotating tank 3, and then rises on the side wall. Thereafter, the particles are compressed by the side wall of the rotary tank 3 and the rolls 4 and 4, and the particles are rubbed against each other. By changing the pressing force by the rolls 4 and 4 in various ways, the granular particles are made spherical or the impurities on the surface are peeled off.
上述の粒状体の処理装置のロールにより加圧0.30〜0.45MPa で押圧しながら、比表面積が約112cm2/gの電融マグネシアを処理したところ、電融マグネシアは比表面積が約99cm2/gとなり球状に近づいた。この結果、これを原料として用いた材料の充填性が向上した。
ここで、比表面積とは粒状体の粒子の表面積と重量の比である。
While the molten magnesia having a specific surface area of about 112 cm 2 / g was processed while being pressed with a pressure of 0.30 to 0.45 MPa by the roll of the above-described granular material processing apparatus, the specific surface area of the fused magnesia was about 99 cm 2 / g. It became a spherical shape. As a result, the filling property of the material using this as a raw material was improved.
Here, the specific surface area is the ratio of the surface area to the weight of the particles of the granular material.
同様にして、上述の粒状体の処理装置のロールにより加圧0.40〜0.50MPa で押圧しながら、比表面積が約200cm2/gのスラグを処理したところ、スラグは比表面積が約100cm2/gとなり球状に近づいた。この結果、これを鋳物砂骨材の原料として用いることができた。 Similarly, when a slag having a specific surface area of about 200 cm 2 / g was processed while being pressed at a pressure of 0.40 to 0.50 MPa by the roll of the granular material processing apparatus described above, the specific surface area of the slag was about 100 cm 2 / g. It became a spherical shape. As a result, it could be used as a raw material for foundry sand aggregate.
3 回転槽
5 ロール
10 シリンダ
3 Rotating tank
5 rolls
10 cylinders
Claims (3)
前記回転槽の回転によりこれに収納された前記粒状体に遠心力を付与して粒状体を前記回転槽内の周縁方向へ向けたのち前記側壁上を上方へ移動させ、当該粒状体を側壁と前記ロールとによって圧縮して、粒状体の粒子同士を相互に擦ることを特徴とする粒状体の処理方法。 A rotating tub having a side wall that is rotatably arranged in a horizontal plane, has an annular shape and has a weir at the tip, and a rotating tub that is relatively rollable on the side wall of the rotating tub. A method of treating a granular material with a roll pressed in the direction of the side wall of the rotating tank by a pressure means,
A centrifugal force is applied to the granular material accommodated therein by rotation of the rotating tub so that the granular material is directed in the peripheral direction in the rotating tub and then moved upward on the side wall. A method of processing a granular material, wherein the particles are compressed by the roll and rubbed with each other.
前記粒状体は比表面積が約４０〜１５０cm2/gの電融マグネシアであり、前記ロールの加圧力が0.30〜0.45MPaであることを特徴とする粒状体の処理方法。 In the processing method of the granular object according to claim 1,
The granular material is a fused magnesia having a specific surface area of about 40 〜 150 cm 2 / g, and the pressure of the roll is 0.30 to 0.45 MPa.
前記粒状体は比表面積が約6０〜３００cm2/gのスラグであり、前記ロールの加圧力が0.40〜0.50MPaであることを特徴とする粒状体の処理方法。
In the processing method of the granular object according to claim 1,
The granular material is a slag having a specific surface area of about 60 〜 300 cm 2 / g, and the pressure of the roll is 0.40 to 0.50 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004293206A JP2006102652A (en) | 2004-10-06 | 2004-10-06 | Method for treating granular body |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004293206A JP2006102652A (en) | 2004-10-06 | 2004-10-06 | Method for treating granular body |
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| JP2006102652A true JP2006102652A (en) | 2006-04-20 |
| JP2006102652A5 JP2006102652A5 (en) | 2007-08-23 |
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| JP2004293206A Pending JP2006102652A (en) | 2004-10-06 | 2004-10-06 | Method for treating granular body |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583652A (en) * | 1981-06-27 | 1983-01-10 | 川崎重工業株式会社 | Milling method and apparatus |
| JPS61257247A (en) * | 1985-05-09 | 1986-11-14 | 梶沢 豊 | Grinder |
| JPS6238254A (en) * | 1985-08-12 | 1987-02-19 | 三菱重工業株式会社 | Roller press apparatus for vertical crushing apparatus |
-
2004
- 2004-10-06 JP JP2004293206A patent/JP2006102652A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583652A (en) * | 1981-06-27 | 1983-01-10 | 川崎重工業株式会社 | Milling method and apparatus |
| JPS61257247A (en) * | 1985-05-09 | 1986-11-14 | 梶沢 豊 | Grinder |
| JPS6238254A (en) * | 1985-08-12 | 1987-02-19 | 三菱重工業株式会社 | Roller press apparatus for vertical crushing apparatus |
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