In relation to our earlier blog about “Fluidization” where the theory behind this phenomenon is clearly explained ( see: Can cement fly? – Part: Fluidization ) . We have visualized this wonder in a short movie for even better understanding.
In summary the following will be demonstrated:
• A section of an air slide covering a small layer of Cement (Ordinary Portland Cement) is level
• The inclination of the air slide will be multiple times increased without the OPC to start moving (angle up to even 35 degrees)
• Once the slide in the bottom half of the box underneath the aeration fabric is opening, an airflow will pressurize this area up to only 300mbar and the “magic” will start to appear
• The pressure forces the air to pass through the fabric released underneath the OPC and air bubbles will rise to the surface allowing the material “aerate”
• This aeration cause the material to fluidize and starts acting “like” water
• The advantage of water is that it will flow to the lowest point and that’s exactly the condition in what the material needs to be for transporting it over distance which is needed in varies of bulk handling systems (for example air slides)