Biomass Fuel Handling

1
Biomass Fuel Handling

• Phillip C. Badger
• General Bioenergy, Inc.
• Florence, Alabama
• ORNL BFDP Review MtgMemphis, TNNovember 7,
  2001

2
The Process
Feedstock Characteristics
Fuel Preparation
Conversion Device Fuel Requirements
3
Presentation Review

• Will review some aspects of fuel handling only
• Nothing on
• Feedstocks
• Conversion devices

4
Fuel Handling Operations

• Truck weighing
• Truck dumping
• Screening
• Grinding
• Drying
• Storage
• Feeding into conversion device

5
Weighing Operations

• Mechanical Scales
• Electronic Scales

6
Unloading

• Manual unloading (e.g., Bobcat)
• Self unloading
• Dump trucks
• Walking floor
• Onsite dumper systems
• Trailer dumpers
• Whole-truck dumpers

7
Screening

• Disk screen
• Shaker screen

8
Grinding

• Hammermill hog
• Knife hog

9
Drying

• Rotary drum dryers
• Suspension dryers
• Hot hog
• Hot conveyor

10
Storage Systems

• Bins
• Live bottom
• Hopper
• Silos
• Metal
• Concrete
• Bunkers
• Sheds
• Open pile

11
Conveying Systems

• Belt (e.g., tube, flighted, roller-trough)
• Screw or auger
• Chain (e.g., flights, drag)
• Bucket
• Oscillating
• Pneumatic
• Front-end loaders

12
Metal Removal

• Magnets
• Stationary, manual cleaning
• Stationary, automatic cleaning
• Head pulley
• Non-ferrous metal detector

13
The Simplest Handling System
Self Unloading Trucks
Fuel Storage
Conveyor
Conversion Device
14
(No Transcript)
15
Handling System 80 MW Wood Waste Fired Biopower
Plant at Hurt, Virginia
Front-end Loader
Front-end Loader
Scales
Whole Truck Dumpers
Open Pile Storage
Feed Hopper
Full Trucks
Empty Trucks
Scales
Whole Truck Dumpers
Conveyor
Front-end Loader
Dryer
Conversion Device
16
Typical Industrial Wood Fuel Processing System
Non-ferrous Metal Detector
Magnet
Gravity
Full Trucks
Disk Screen
Scales
Whole Truck Dumpers
Full Trucks
Hog
Belt Conveyor
Feed Hopper
Conversion Device
Open Pile Storage
Conveyor
Front-end Loader
Conveyor