Advantage/Disadvantage of Pneumatic Conveying System

Advantage

- Relatively free conveyance route
- Secondary pollution prevention with closed conveyance
- Easy operation and maintenance with simple structure
- Big transportation capacity per unit area
- Less initial investment
- No noise or remnant generated

Disadvantage

- Large power required.
- Pipe wear and destructed particle (Prevention with low speed high concentration conveyance)\
- Limited materials for conveyance
- Difficult transportation of moist materials
- Adhesive materials 

Types of conveying Methods 

- Low Pressure Forced Feed Type

: General Industries (Wood Chip, Pellet)
: Conveying Speed (15-20 m/sec.)
: Mixture Ratio (0.1-10) 

- High Pressure Forced Feed Type

: Long distance/large quantity transportation
: Conveying Speed (15-30 m/sec.)
: Mixture Ratio (750)

- Absorption Type

: Ship Unloading (Crops, Alumina), Food Process, Toxicant Conveyance
: Conveying Speed (15-30 m/sec.)
: Mixture Ratio (0.1-15)

- Plug Transportation Type

: Conveyance of fragile particle (Crystal Particle)