Filter Designs: Vent Line Filter

This filter is used to capture dust particles that are normally vented to the atmosphere when a silo or receiving tank is filled pneumatically. The centrifuge process of the cyclone separator, incorporated in the filter's lower body below the filter inlet, allows the product to fall out of the product/air stream by gravity.

The conveyance air is then filtered through the fine filter bag section, located above the cyclone separator, before it is released to the atmosphere. Product particles are captured and returned, when the filter is purged, for proper storage and use. The result is a safe working environment, protecting personnel and equipment, with no product loss or pollution.

The PDC Vent Line filter and the PDC Ashing filter operate without the use of electricity or high pressure air. The units also operate without moving parts. Both units are portable and do not require installation. ASME certified filters are available for offshore use.

Note: All Photos Show Filter in Operation

ASME Filters on Drilling Rig
Coded pressure vessel configured for bulk dry powder transfer Coded pressure vessel configured for bulk dry powder transfer
Does not require electricity.
Captures vented particulates.		 No pollution.
No moving parts.

Venting Various Tanks
Venting hopper dockside with Pneumatic Dust Control filter Venting cement hopper at portable batch plant with Pneumatic Dust Control filter
Environmentally sensitive areas Protect Personnel
One Pneumatic Dust Control filter for all four silos Venting air through filter as railcar is loaded
Vent multiple tanks with one filter. Load or unload barges, rail cars, silos, supply boats, or trucks.

Specifications:

Physical Dimensions
Inlet
4 in
Outlet
4 in
Vent/Purge
3 in
Diameter
30 in
Height
9 Feet
Material
Carbon Steel
Note: This is a closed loop filter. The filter operates without use of an ID fan. It utilizes cfm and air pressure that transfer products pneumatically. The vented air and the displaced air used are filtered in the transfer process. The filter removes the fines from the air stream and holds them until purging. Reversing the airflow through the filter cleans the bags and returns collected fines to storage.

Ratings
Model: # 9-1400 #16-2400 #32-4800
Square Feet of Cloth Area 45 80 156.48
Inlet CFM Max. 3000 3000 4800
Loading Maximum @ 3% 500 lbs 800 lbs 1600 lbs
Normal CFM @ 1 psi 1400 2400 4800
Filter CFM (sq ft of filter area and number of filter bags) is matched to the product being filtered.
Efficiency Rating @ 2800 Blaine 99.97
*Discharge Rate @ 5 Micron <00.05 lbs per hr. @ 100 lbs/cfm