The first Pneumapress filters, installed in 1991 and still in operation, were designed for the heavy-duty application of dewatering precipitated silica at a geothermal mine in southern California. Due to the corrosiveness of the slurry, which is supersaturated with chloride salts (up to 300,000-ppm), the filter chambers were constructed of C-276 alloy. Due to the high temperature of the slurry, 110oC, no rubber or synthetic components are used inside the filter chamber. Read more about the first Pneumapress filters.
Since the first installation, the installation list has grown significantly, but the design principles are still the same: design and manufacture heavy-duty, simple-to-operate filters that minimize cycle time and filter area while maximizing utilization and throughput.
Features of Industrial-Grade Filters:
- Filter plates constructed of 50-mm thick steel
Isolatable filter plates to maximize equipment availability
- High temperature resistance for metallurgical process slurries - up to 150oC
Fast Cycles - minimize filter area required by maximizing cycles per hour
Benefits of Pneumapress® Filters:
Low installed cost - small footprint
- Low maintenance cost - no membranes
Dry filter cake