Summary：Selecting screen media for the screen box is not as simple as before. What was once just braided thread now includes various alternatives
Selecting screen media for the screen box is not as simple as before. What was once just braided thread now includes various alternatives, such as rubber, polyurethane, metal plate, high vibration wire, combination of different materials, etc. Each type has numerous new options for customizing screen panels to provide greater efficiency and throughput - whether by using one type of media or mixing multiple types.
Standard braids are usually the cheapest - at first glance - option, but this is not a reason to ignore these alternatives without careful consideration. According to different applications, these innovative products can improve the wear life, reduce adhesion and blockage, accelerate the delamination process and better remove fine powder, so as to improve the overall quality of screened products.
Here are several reasons to consider high-performance screen media.
1. Prolong Wear Life
The wear life of most types of special screen media is much longer than that of traditional braids. Thick rubber and steel plate media obviously mean higher durability, but sometimes at the expense of open areas. The high-performance filter material is fixed by highly engineered metal wire and polyurethane strip, which eliminates the common cross metal wire with high wear points of woven metal wire and several types of self-cleaning filter materials. This results in an optimum open area and wear life five times longer than a single wire.
2. Minimize Screening Problems
High performance screen media can provide excellent open areas - in some cases, 30% more than traditional braids and 50% more than traditional polyurethane and rubber sheets. It is usually a good way to solve the problems of hanging nails, blind areas or material pollution. Some media are tapered to help solve these problems, while others use a unique design that allows the wire to vibrate independently from hook to hook under material contact. As a result, in addition to the vibration of the screen box, high-frequency vibration from the wire will also be generated. This actually eliminates the near size nails on the top deck and the blockage and blockage of small materials on the bottom deck. This also means reducing the risk of material contamination and cleaner retention products through intermediate platforms.
3. Increase of Efficiency
Since wire mesh machines are usually placed at the beginning and end of production, the correct wire mesh medium may be the key to production quality and quantity. High performance media can provide the necessary efficiency gains because some types accelerate delamination and increase material separation.
The high vibration screen operates at high frequency to accelerate the delamination process. This frequency can be as high as 8000 to 10000 cycles per minute, 13 times higher than the standard vibration of the screen box. The increased screening spread the material over the entire screen surface area on all decks. This allows faster material movement while maximizing contact to ensure optimal throughput without residue. The result is a higher quality final product.
This type of screen medium is also very effective in removing fine powder. As a result, the water required to clean the material can be reduced, sometimes even completely eliminated.
Using a particular type of screen media is not always the best choice, but a better solution may not always be obvious. Operators should consult dealers and manufacturers to determine the best type of media to solve screening problems and improve performance. The right solution may mean turning the bottleneck screen into a profit maker.