Conventional Bulk Material Elevating Systems P.W. Wypych, P. Olds and R. Olds, R. McIntosh; Developments in Bulk Material Elevation Technology

Bucket Elevator Discharge

Bucket Elevator Ignition Sources Sparking caused by impact Tramp metal or broken bucket Misalignment of belt/chain/screws Ignition caused by overheating bearings or pulleys Frictional heating caused by buckets shearing against product

Sparking caused by impact

Tramp metal or broken bucket

Misalignment of belt/chain/screws

Ignition caused by overheating bearings or pulleys

Frictional heating caused by buckets shearing against product

Conventional Screw Conveyor Explosion Isolation Choke Eckhoff, R.K., Dust Explosions in the Process Industries, 2 nd Edition, Butterworth-Heinemann, U.K., 1997.

Examples of Existing Explosion Isolation Devices Chokes Rotary valves Automatic fast-acting valve systems Flame front diverters Chemical isolation systems Source: NFPA 654

Chokes

Rotary valves

Automatic fast-acting valve systems

Flame front diverters

Chemical isolation systems

Olds Elevator Full Bore Flow Natural Choke P.W. Wypych, P. Olds and R. Olds, R. McIntosh; Developments in Bulk Material Elevation Technology

Peter Olds-Inventor Demonstrating Innovative Technology

Top of 20’ Olds Elevator Discharge Full-Bore Flow Photo Credit: Richard McIntosh

Olds Elevator Innovative Technology Photo Credit: Richard McIntosh

In-Feed Pickup Scoop Process Photo Credit: Richard McIntosh

In-Feed Pickup Scoop P.W. Wypych, P. Olds and R. Olds, R. McIntosh; Developments in Bulk Material Elevation Technology

4" x 20' Elevator Feeding Biomass Pellets to Gasifier (Class 1, Div 1 XP environment )

Olds Elevator LLC 12 B Park Avenue Hudson, NH 03051 Tel: 603 882 8899 Fax: 603 882 8855 [email_address] www.oldsusa.com