Filter Maintenance

Air cleansing filters are used in drying systems to:

Prevent dust and fines carried over from the material in the drying hopper from contaminating the desiccant’s ability to remove moisture
Clean ambient air used in the regeneration of the desiccant
Prevent dust from contacting the dryer’s heaters, creating a fire hazard

Keep all filters in the drying system clean to allow the critical airflows of the dryer to do their job.
Maintenance routine:

Turn the dryer heaters off and allow heaters to cool-off before the blowers are stopped
Carefully remove the filter elements
Clean or replace the filter elements
Air blow or vacuum the filters to remove accumulated dust and fines
Do not puncture or distort the filters
Replace filter elements if they are damaged, distorted or can’t be cleaned
Carefully re-install filter elements so no leaks are allowed around the base of the filter or the filter housing or lid.

Poor filter maintenance is the number one reason for: