Sesame Sieve

What is a sesame sieve?

Sesame sieve is also called sesame sieve machine or sesame sieving machine. Sesame sieving generally refers to sieve out the sand in the sesame or the carbon residue in the fried sesame. Sesame sieve can divide the sesame mixture into 6 different grades. The first level is to separate out the large impurities of sesame, like some pods, rods, and soil bumps, the second level is clean sesame seeds, and the third level is to screen out the impurities smaller than sesame, generally crushed powder, sand, and grass. Impurities such as seeds and so on.

Sesame sieve is a tool or equipment specifically used to separate sesame seeds from impurities (such as stones, crushed shells, dust, etc.) and grade them according to particle size. It is widely used in industries such as food processing, agriculture, and grain and oil production. Its main function is to remove impurities, grade them according to size, and improve the purity and quality of sesame seeds.

How does the sesame sieve work?

Sesame sieve is generally composed of 3 layers. When the sesame and impurities enter the upper sieve surface from the feed hopper, the sesame passes through the sieve holes and falls to the lower sieve surface, while the large impurities remain on it and flow down the sieve surface. The outlet is discharged. On the lower sieve surface, the opposite is true. Sesame seeds are left on the sieve surface and then flow to the discharge port, while the fine impurities pass through the sieve holes and fall on the bottom plate of the sieve frame, and then are concentrated to the outside of the machine.

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What are the benefits of sesame sieves?

1. This sesame sieve has an organic impurity removal rate of 95% and an inorganic impurity removal rate of 98%.

2. Use 304 stainless steel material, clean and sanitary, with high efficiency of dust removal and impurity removal.

3. The screen can be changed arbitrarily according to user requirements. The commonly used meshes in the sesame industry are 10/14/16/18 meshes.

4. One machine with multiple functions, can be filtered or graded, and the number of grades can reach up to 6. It also has a professional cleaning effect on soybeans, millet, rice, garlic, red dates and other crops.

Technical parameters of sesame sieve

Model	Diameter mm	Screen area m	Screen size（mesh）	Feeding granularity mm
DH-600	Φ600	0.24	2-500	<Φ10
DH-800	Φ800	0.45	2-500	<Φ15
DH-1000	Φ1000	0.67	2-500	<Φ20
DH-1200	Φ1200	1.0	2-500	<Φ30
DH-1500	Φ1500	1.6	2-500	<Φ30
DH-1800	Φ1800	2.43	2-500	<Φ30
DH-2000	Φ2000	3.01	2-500	<Φ30

What can sesame sieve be used for?

Sesame sieve is used to remove the husks and sand left over during the harvest of sesame seeds, or to remove the carbon residue and broken skins in the sesame seeds after being fried. It is generally used in grain storage plants and grain and oil processing plants.

Solution for Sesame Sieve

The average length of sesame seeds is about 2-3 millimeters and the width is about 1-2 millimeters. Therefore, the main purpose of screening sesame seeds is to remove impurities smaller or larger than sesame seeds, as well as empty and damaged sesame seeds.

What are the precautions for sesame sieve?

1. According to the impurity content of sesame seeds, the flow rate should be controlled, and the feed should be uniform and the thickness should be consistent. Second, always check whether the screen surface is damaged, whether the screen hole is blocked, etc., if the screen surface is damaged, it should be repaired or replaced immediately; the blockage of the screen hole should be cleaned with a long-handled brush. It is strictly forbidden to tap the sieve surface during operation.

3. For vibrating screens equipped with brushes, check the movement of the brushes and the efficiency of brushing frequently.

4. Large inclusions on the upper sieve surface of the vibrating screen should be removed at any time.

5. If impurities are found under the bottom sieve surface, I think it should be stopped immediately for maintenance.

6. The air volume of the vibrating screen equipped with suction equipment should be adjusted appropriately to prevent dust from escaping and to avoid the sesame seeds from being sucked away. Always check the dust effect of the dust collector.

Recommended aperture range for different screening purposes

Removing impurities (removing impurities from sesame seeds, such as sesame shells, etc.)

Sesame sieve removes larger impurities (such as straw, leaves, stones, etc.): circular holes are 4-6 millimeters, square holes are 3-5 millimeters

Sesame sieve removes small impurities (such as fine sand, soil, crushed sesame seeds, etc.): circular holes are 1.5-2 millimeters, square holes are 1-1.5 millimeters

Grading (removing empty and damaged sesame seeds):

Circular holes can be selected with a slightly smaller diameter than full sesame seeds according to needs, such as 1.8-2.2 millimeters.

Square holes can also be selected with a slightly smaller aperture than full sesame seeds according to demand, such as 1.3-1.7 millimeters.

Fine screening (further removal of fine impurities):

Sesame sieves can use higher mesh sizes, such as 10-20 mesh (with a pore size of approximately 0.85-2 millimeters).

Mesh size configuration

Level, mesh size, aperture (mm), function

First layer (coarse sieve)	10-12 mesh	1.6-2.0mm	Remove large particle impurities (such as straw, small stones, damaged sesame shells)
Second layer (grading sieve)	16-18 mesh	1.0-1.2mm	Screen out larger sized sesame seeds as complete granules (high-quality sesame seeds, usually used for direct consumption or high-end markets)
Third layer (fine sieve)	22-24 mesh	0.7-0.9mm	removes broken particles, fine sand and gravel, screens out smaller sized sesame seeds (suitable for oil pressing or secondary use), while fine impurities (such as sand and dust) fall to the bottom layer

For the primary cleaning of sesame seeds, sesame sieves remove larger impurities, and circular holes may be less prone to clogging. Square hole sieves have an advantage in accuracy, but attention should be paid to clogging.

Sesame sieve adopts a multi-layer sieve design, with coarse sieve using larger pore size to remove large impurities, and fine sieve using smaller pore size to remove small impurities and classify them.