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| There are different strokes for different folks, as varying operations have different particle size requirements. In the industry, the size of a solid material is an essential factor considered when optimizing equipment to be used. If a material is too large, size reduction is necessary. This reduction is usually aided by crushers. An important post-work for crushing is screening to ensure that only the necessary size is obtained.
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| Screening, as a mechanical operation, separates mixtures of various-sized solids into two or more portions by agitating the screening surface to allow the smaller particles to get through the screen. There are two types of screening – wet or dry. For the former, the particles are flushed with water to facilitate the washing down of the smaller particles and for the latter; the material is screened as is. Moreover, there are two key classifications of materials when screening undersize (materials that pass through the particular screen) and oversize (the materials that remain on top of the screen).
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| For this purpose, an ideal crusher is one that has a large capacity with a small power input and can produce same-sized material. For this experiment, we will calculate for the energy requirement as well as the efficiency of the screen that we will use. For energy requirement, we will use the Bond’s law defined below.
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