What is the difference between wet sieving and dry sieving

Friday February-03 2023  11:02:07

The sieving test is divided into wet sieving test and dry sieving test, so what is the difference between wet sieving and dry sieving?

difference	Wet sieving test	Dry sieving test
introduce	For particles smaller than 75 microns, it is necessary to separate the coarse and fine particles of the material through a wet sieve	It is used for particle size detection of particles larger than 75 microns, dry and fluid materials
Screen size	20 microns-5 mm	40 µm - 125 mm
diameter	3", 8", 12"	3", 6", 200mm, 8", 10", 300mm, 12" and 18".
Height	4 inches, 8 inches	Half-height and full-height sieves
Price	$24.00 - $200.00/Piece	$20.00-$3,680.00/Set
Application	Suitable for wet processing, where high concentrations of fine particles tend to stick together and will not separate using only mechanical shaking, suitable for virtually insoluble in water Unaffected by water; solids that expand when wet will not work Holds when heated to 110°C, such as aggregates, clays, slurries, silts, etc.	particle size structure analysis and detection of granular and powdery materials under dry conditions

Treatment	19% clay		24% clay		34% clay
Dry-crushed, dry analysis	163.4±3.2	a	145.4±2.1	b	124.5±1.8	c
Dry-crushed, wet analysis	96.2±0.8	a	96.3±1.4	a	65.7±1.1	b
Dry-crushed, wet and Na4P2O7-dispersed analysis	90.9±1.7	a	83.5±0.5	b	45±0.7	c

Note: The following requires use wet sieve test instead of dry sieve test:

1. When dry sieving does not produce a sufficient degree of sample separation

2. When testing samples containing small amounts of gravel-sized material

3. When silt and clay need to be removed