Here is why quality of Hi-Flow Fluidisation fabric matters for gaining a reliable convey performance
In relation to our earlier blog about “Fluidization” where the theory behind this phenomenon is clearly explained ( see: http://www.lionbulkhandling.com/2016/10/11/post-with-audio-2/ ) we would like to share the examples in fabric quality variables which has a high influence on the resulting convey performance.
As the costly cargo is resting on-top of this fabric and need to be handling with care, the fabric is in need of the following requirements;
• High quality
• High abrasive resistant
• Low friction
• Uniform air permeability
All starts with the very basics of raw material which is the yarn itself. Weaving for the textile industry is done by two sets of yarns or threads interlaced at the correct angles to form fabric or clothing. For the cement industry nowadays these yarns could be so produced that an endless high quality single polyester yarn is available for this weaving. By using a polyester yarn, a high strengthened weaving technique is able to achieve.
By having the availability of the this high quality polyester yarn, the fabric could be offered as high quality, pre-shrunk and strengthened multifilament polyester yarns which consists of many endless monofilaments twisted together and having their surface being very smooth. Resulting in being high abrasion resistance and therefore up to 3-5 times longer lifetime than the previous weaving techniques/yarns.
Elongation (banana effect)
This effect is commonly seen in airslides over time after witnessing capacity drops. The aging of the fabric under tension within the airslide will make the fabric from being a flat/straight surface into the flexible fabric. The gravity causes the bulk material to flow at the lowest point, namely the edges of the fabric which causes an enormous abrasion at the edges of the air slide. Due to the missing bulk material in the centre of the air slide, the air generated chooses the way of least resistance and escapes there, that means the fluidization process will not work well any longer or will even stop totally.
The absolute uniform air permeability is another very important point of view for a trouble free production. Without this, only partial areas of the fabric surface is correctly aerated by less resistance between over the fabric itself and an inconsistence aeration of the cargo above is witnessed resulting in a negative convey rate influence.
Would you like to know more about the fabric or do you encounter difficulties in your application? Our team will be ready for all your questions. Contact us via the comment section below or sent us a message via http://www.lionbulkhandling.com/contact/