… There are two ways to blend ores (iron ore, nonferrous metal ores, nonmetallic ores, coal, etc.): using an open or covered yard, or using special large containers. Blending in a yard is called yard blending, and the most common method is bed blending. Bed blending involves spreading a large amount of ore (hundreds of thousands of tons or more) in layers in a rectangular or circular yard, and then collecting the beds (triangular or trapezoidal cross-sections formed by the angle of repose) from the edge to homogenize the material. … *Some terminology explanations that mention "yard blending" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… 鉱石類(鉄鉱石,非鉄金属鉱石,非金属鉱石,石炭など)のブレンディングには,野天または屋根掛けを施した土場(どば)を用いる方法と,特殊な大型容器を用いる方法とがある。土場によるブレンディングはヤードブレンディングyard blendingと呼ばれ,その中で最も一般的な方法はベッドブレンディングbed blendingである。ベッドブレンディングは,数十万tあるいはそれ以上の大量の鉱石類を,長方形または環状の土場に層状に振りまき,安息角によって形成された三角形または台形の断面をもつ堆積物(ベッド)を端から回収し,均質化をはかる方法である。… ※「yard blending」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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