Dry Sieve Test-DAHAN Vibration Machinery

What is Dry Sieve Test?

Dry sieve test, also called dry sieve analysis test, is used to determine the particle size of dry, free-flowing material, which determines the size distribution of aggregate particles in a given sample. These sieves are used by shaking or vibrating the sieve, which allows the particles Look for openings in the wire mesh. The particles are able to separate themselves. During the test, the sample is sieved through a series of screens with different apertures, removing particles above a certain size.

Dry sieve test is suitable for samples with larger particles and dryness, and is widely used in construction materials, chemical industry, food, pharmaceutical and other fields. Through dry sieve test, experimenters can quickly and accurately understand the particle distribution of the sample, helping them conduct particle analysis, quality control and process improvement, thereby improving production efficiency and product quality.

What is the difference between dry sieve test and wet sieve test?

Dry sieve test and wet sieve test are both methods used for particle analysis. The difference lies in the state of the sample processed. Dry sieve test is suitable for dry granular or powder samples, and the particle size distribution is analyzed through a sieve; wet sieve test is suitable for wet or sticky granules, which are sieved after adding water or other liquids. Wet sieve test is usually used for the analysis of particles under wet conditions and can evaluate the particle size distribution and fluidity of particles.

	Dry Classification		Wet Classification
Size fraction,um	Wt.,%	Cum. wt.,retained %	Wt.,%	Cum. wt.,retained %
+600	11.74	11.74	1.32	1.32
- 600+ 106	79.76	91.50	87.28	87.28
-106＋45	2.37	93.87	2.53	91.13
-45+25	0.98	94.85	1.42	92.55
-0.025	5.15	100.00	7.45	100.00
Total	100.00		100.00

Types of Dry Sieve Test

Dry sieve test is available in the following diameters: 3", 6", 200mm, 8", 10", 300mm, 12" and 18".

Dry sieve is divided into half-height and full-height sieves.

Half-height sieves can be used with sieve shakers to allow more sieves to fit in the sieve stack on your machine.

Working Principle of Dry Sieve Test

1. Vibration sieving: The sample is thrown upwards by the vibration of the sieve bottom and falls back due to gravity. The amplitude represents the vertical oscillation height of the screen bottom. Due to this combined movement, the sample material is evenly distributed over the entire sieve area. The particles are accelerated in the vertical direction, spin freely, and fall back in the statistical direction. In RETSCH vibrating screens, electromagnetic drives move the spring/mass system and transmit vibrations to the screen stack. The amplitude can be continuously adjusted to a few millimeters.

2. Horizontal screening: In the horizontal screen vibrating screen, the screen moves in a horizontal circle in the plane. Horizontal sieves are preferably used for needle-shaped, flat, elongated or fibrous samples. Due to the horizontal screening motion, hardly any particles change their orientation on the screen.

3. Tapping screening: In the tapping screen vibrator, the horizontal circular motion is superimposed with the vertical motion generated by the tapping pulse, and the tapping motion imparts greater impact force to the particles. Therefore, for some materials, such as abrasives, The proportion of fine particles is usually higher.

Dry Sieve Test Technical Data

Product Name	dry sieve test 20/50/80/100 micron test sieve for laboratory filtration
Material	Stainless Steel 304/316/316L,copper,brass
Micron size	8 mesh --2000 mesh
Aperture	0.02mm - 100mm
Used	testing screening, and filter, testiing filter and screen
Frame diameters	75mm/ 100mm/200mm/300mm/ 400mm

Dry Sieve Test Sieve Size

No.	Type	Mesh(mm)	No.	Type	Mesh(mm)
1	8#	2.360	15	70#	0.212
2	10#	2.000	16	80#	0.180
3	12#	1.700	17	100#	0.150
4	14#	1.400	18	120#	0.125
5	16#	1.180	19	140#	0.106
6	18#	1.000	20	170#	0.09
7	20#	0.850	21	200#	0.075
8	25#	0.710	22	230#	0.063
9	30#	0.600	23	270#	0.053
10	35#	0.500	24	325#	0.045
11	40#	0.425	25	400#	0.038
12	45#	0.355	26	500#	0.028
13	50#	0.300	27	>500#	<0.028
14	60#	0.250

Application of Dry Sieve Test

It is widely used in scientific research and production, laboratories, quality inspection rooms and other occasions in medicine, abbreviation, chemical industry, metallurgy, geology and other departments to screen, filter and detect particles, powders, and liquid materials.

Cassia	14 mesh	Buckwheat	12 mesh	Tenebrio molitor eggs	12 mesh
Worm dung	30 mesh	Soybeans	4-5 mesh	green beans	10 mesh
Rice	12-14 mesh	rice flour	30-40 mesh	Cornmeal	30-40 mesh
flour	50-60 mesh	Miscellaneous grains	40-50 mesh	Sesame Millet	22-24 mesh
Fried Chicken Burger Breaded	20-30 mesh	Mung bean flour	40-50 mesh	Sesame powder	40-50 mesh
Notoginseng powder	100-120 mesh	Pine pollen	100-120 mesh	Chinese medicine powder	40-50 mesh
Oral Chinese medicine powder	60-80 mesh	Traditional Chinese Medicine Mask	80-120 mesh	Pearl powder	120-150 mesh
Medicine residue	60-150 mesh	Soy milk	80-120 mesh	honey	80-120 mesh
Soup dregs	120-150 mesh	Tea water	120-150 mesh	Cooking oil	150-200 mesh

Proof of Solutions for Our Wide Range of Products

Procedure for using the Dry Sieve Test

1. Remove a 500 g soil sample from a dispersed representative sample.

2. Perform a sieve analysis using the set of standard sieves given in the data sheet.

3. The sieving can be done by hand or mechanical shaker for 10 minutes.

4. Weigh the material remaining on each sieve.

5. The percentage retained on each sieve is calculated based on the total weight of the soil sample taken.

6. Based on these results, calculate the percentage passing through each sieve.

7. Plot the particle size curve of the soil on the semi-logarithmic plot provided.

Grain Size Analysis by Wet and Dry Sieve Analysis

Wet sieving and dry sieving are commonly used particle size analysis methods, and the biggest difference between the two methods is the state of the sample. Wet sieving is to suspend the sample in water and separate it through a sieve, which can analyze materials with a particle size of less than 3mm. Dry sieving is to separate completely dry samples through a sieve, which can be used to analyze materials with a particle size greater than 3mm. These two methods can obtain the size distribution of the particle material, which can help us understand the physical properties and preparation process of the sample, and are very useful analytical methods.