The Auto-Vac® Rotary Vacuum Drum Precoat Filter (RVDF) is Alar's flagship dewatering technology. Learn more by visiting: www.alarcorp.c.... The Auto-Vac® microfiltration design handles a wide range of volumes with various solids loadings. Its self-cleaning feature maintains consistent filtration rates without clogging, blinding or bottlenecks. A cost-effective, on-site solution for wastewater processing.
Once a full cake is built on the drum, the wastewater is pumped into the pan at a controlled rate. The vacuum sucks the water [liquid] through the drum and pumps it away. Suspended solids, precipitated metals, or de-emulsified fat, oil and grease larger than one-micron will accumulate on the filter cake surface. These solids will build with each revolution of the drum until the vacuum cannot draw any more water through. At this point, a stepping motor activates a variable speed knife blade that removes the top layer of solids with lathe-like precision. The knife also shaves off a slight amount of filter aid cake as it advances toward the drum; leaving a clean layer of media to grab more solids.
Alar custom builds sixteen (16) Auto-Vac® sizes; ranging from 3.14 to 503 square feet of filtering area. The systems are available in automatic (PLC and pneumatic control) or semiautomatic (switch and valve control) options. The patented design features a non-segmented drum that allows 27" of vacuum to pull liquid through 100% of the filter surface. This equates to faster filtration rates, drier solids, less filter aid consumption and a smaller footprint (less square footage needed).
Alar engineered the Auto-Vac® with variable adjustments for more efficiency. The operator can control the speed of the drum rotation and knife advance, along with the liquid level in the filter pan. Each independent function contributes to maximum effluent and dry solids quality.
Contact Information:
Alar Water Treatment LLC
708-479-6100
27 авг 2024
