Nasssiebverfahren

Nasssiebverfahren, also known as wet sieving, is a particle separation technique used to classify granular materials based on size. It involves suspending the material in a liquid, typically water, and then passing this slurry through a sieve with a specific mesh size. Particles larger than the sieve opening are retained on the sieve, while finer particles pass through with the liquid. The retained particles are then washed to remove any adhering fine material before being dried and weighed.

This method is particularly useful for separating fine particles that might otherwise clog a dry sieve or create excessive dust. The liquid medium also helps to prevent particle agglomeration, ensuring more accurate size separation. Nasssiebverfahren is commonly employed in various industries, including mining, ceramics, pharmaceuticals, and food processing, for quality control, material characterization, and process optimization. The choice of liquid and sieve mesh size depends on the specific material being processed and the desired separation outcome. The process can be performed manually or with automated equipment for larger volumes.