Types |
Advantages |
Disadvantages |
Shaker |
High collection efficiency |
Low air-to-cloth ratio (1.5 to 2 ft/min) |
Strong woven bags |
Restricted to low temperatures |
Easy operation |
Larger space required |
|
Larger number of filter bags required |
|
Frequent maintenance |
|
Operators must enter bag filter to replace bags which creates potential for toxic dust exposure |
|
Poor cleaning efficiency if positive pressure present |
Reverse air |
High collection efficiency |
Low air-to-cloth ratio (1 to 2 ft/min) |
Preferred for high temperatures |
Frequent maintenance |
|
Unable to remove residual dust buildup |
|
Clean (output) air must be filtered |
|
Operators must enter bag filter to replace bags which creates potential for toxic dust exposure |
Pulse jet (Reversed Jet) |
High collection efficiency |
Dry compressed air required |
High air-to-cloth ratio (6 to 10 ft/min) |
Restricted to low to medium temperatures |
Aggressive cleaning action |
Unable to function with high humidity gases |
Continuous |
|
Strong woven bags |
|
Lower bag wear |
|
Smaller space required |
|
Bag changing without entering bag filter |
|