Differences Between Pulse Jet and Reverse Air Baghouse Dust Collectors

Pulse jet and reverse air baghouse dust collectors are two common types, with significant differences in cleaning methods, performance, and applicability. 

The detailed comparison is as follows:

1. Cleaning method: 

Pulse jet uses high-pressure compressed air (0.3-0.7MPa) to jet and clean the filter bag in a short time (0.1-0.3s); reverse air uses low-pressure reverse air (0.05-0.1MPa) to blow the filter bag in the opposite direction of gas flow for cleaning.

2. Dust removal efficiency:

 Pulse jet has higher efficiency (≥99.9%) because the high-pressure jet can thoroughly clean the dust on the bag surface; reverse air efficiency is slightly lower (99.5-99.8%) due to gentle cleaning.

3. Filter bag wear: 

Pulse jet has a greater impact on filter bags, and excessive pressure may cause wear; reverse air cleaning is gentle, resulting in less wear and a longer bag service life.

4. Applicable dust:

 Pulse jet is suitable for fine, viscous, and high-concentration dust (e.g., metal dust, chemical dust); reverse air is suitable for coarse, low-adhesion, and low-concentration dust (e.g., stone dust, coal dust).

5. Energy consumption: 

Pulse jet requires an air compressor to provide high-pressure air, resulting in higher energy consumption; reverse air uses low-pressure air, resulting in lower energy consumption.

6. Equipment cost: 

Pulse jet equipment is more complex (needing pulse valves, air bags), with a higher initial cost; reverse air equipment is simple, with a lower initial cost.