How many types of sieving are there?
Manual sieving method: i.e. sieving with a hand-held standard sieve, which requires constant tapping during sieving and has the disadvantage of being time-consuming and labor-intensive. The minimum size of 75 microns
Manual sieving method: i.e. sieving with a hand-held standard sieve, which requires constant tapping during sieving and has the disadvantage of being time-consuming and labor-intensive. The minimum size of 75 microns
Mechanical sieving method: the standard sieve according to the size of the sieve holes stacked into a sieve tower, installed on the vibration sifter, without manual participation in the sieve, can be automatically sieved, sieve size of the minimum 75 microns, there is a certain amount of noise.
Air jet sieving method: the use of negative pressure so that the air flow method so that the sample is sieved The disadvantage is that only a layer of sieving, sieving volume is small, the maximum sieving volume of 30 grams, sieving size of 20 microns minimum.
Sonic sieving method: the use of sound waves generated by the vibration of the sieve, sieve layer 8 layers, sieve size of the smallest 5 microns, the disadvantage of the relative volume of mechanical sieve instrument is slightly larger.
