| 摘要 |
PROBLEM TO BE SOLVED: To provide a sieve capable of efficiently classifying particles by preventing collective clogging.SOLUTION: The sieve is characterized in that a clogging prevention net 2 of a large knot is installed above a sieve net 3 of a small knot for separating a foreign object at a specific interval (clogging prevention interval 4). This way, the upper clogging prevention net 2 receives the weight of particles located above, and as no force is applied on lower particles, the lower particles are pushed and held by the sieve net 3 and surrounding particles to continuously fall without being fixed, and pass through the sieve net 3. Thus, the particles can be efficiently classified without any collective clogging.SELECTED DRAWING: Figure 1 |
