Devices such as screening sieves separate bulk masses according to the size of their components (cereals, sand, grains, etc.). In industries where screening sieves are required, certain quality parameters must be taken into account. With a known fraction of the final product, the mesh size will be of great importance, which must be taken into account before buying screens for screens . This directly affects the efficiency of the enrichment process. Do not forget about the possibility of modifying equipment for different factions.
In general, screens for screening are widely used in road construction, metallurgy, asphalt concrete plants, construction, grain processing, etc. Screens can be folded, string, harp-shaped, polyurethane and others.
Polyurethane sieves are in special demand due to their technical parameters. Let's take a look at the main features.
Polyurethane sieves for screens are of high quality, but are quite expensive. They are used to equip crushers and various screening equipment. They can have holes of different shapes, hole sizes: 2 ÷ 120 mm. It is worth noting the possibility of making the cell size according to the planned load.
Have the following advantages:
1. Increased wear resistance.
2. Exact sorting.
3. Significant noise reduction.
4. Increased travel speeds.
5. High performance.
6. High impact resistance.
7. Reduced operating costs.
8. Issuing the maximum fraction.
9. Self-cleaning capability.
Types of polyurethane sieves for screening
1. Modular. By design, they are a set of sieve cards with sieving modules. Since type-setting sections are used for manufacturing, replacement is possible without dismantling the card, which can significantly reduce repair costs.
2. Stretched. They are chosen when not only effective screening is required, but also increased wear resistance. The use of such screens can significantly speed up the process of installing the screening surface and simplify the design of the screen, thereby ensuring the stable operation of the line as a whole.
3. Drum. Their main purpose is to remove suspended matter from the drain. The presence of a simple system guarantees the possibility of coarse filtration, removing up to 30% of sand and other suspended matter. The drum screen has a high productivity, while the size of the fixed screens, with the help of which the suspension is separated from the liquid, is much larger than the size of the filters.
