Conventional Bulk Material Conventional Bulk Material Elevating SystemsElevating Systems

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

Bucket Elevator DischargeBucket Elevator Discharge

Bucket ElevatorBucket Elevator Ignition Sources Ignition Sources

Sparking caused by impact Sparking caused by impact

Tramp metal or broken bucket Tramp metal or broken bucket

Misalignment of belt/chain/screwsMisalignment of belt/chain/screws

Ignition caused by overheating bearings or Ignition caused by overheating bearings or pulleys pulleys

Frictional heating caused by buckets Frictional heating caused by buckets shearing against product shearing against product

Conventional Screw Conveyor Conventional Screw Conveyor Explosion IsolationExplosion Isolation

ChokeChoke

Eckhoff, R.K., Dust Explosions in the Process Industries, 2nd Edition, Butterworth-Heinemann, U.K., 1997.

Examples of Existing Explosion Examples of Existing Explosion Isolation DevicesIsolation Devices

ChokesChokes

Rotary valvesRotary valves

Automatic fast-acting valve systemsAutomatic fast-acting valve systems

Flame front diverters Flame front diverters

Chemical isolation systemsChemical isolation systems

Source: NFPA 654

Olds Elevator Full Bore Flow Olds Elevator Full Bore Flow Natural ChokeNatural Choke

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

Peter Olds-Inventor Peter Olds-Inventor Demonstrating Innovative TechnologyDemonstrating Innovative Technology

Top of 20’ Olds Elevator Top of 20’ Olds Elevator Discharge Full-Bore FlowDischarge Full-Bore Flow

Photo Credit: Richard McIntosh

Olds Elevator Innovative Technology Olds Elevator Innovative Technology

Photo Credit: Richard McIntosh

Photo Credit: Richard McIntosh

In-Feed Pickup Scoop ProcessIn-Feed Pickup Scoop Process

In-Feed Pickup ScoopIn-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 4" x 20' Elevator Feeding Biomass Pellets to

Gasifier (Class 1, Div 1 XP environmentGasifier (Class 1, Div 1 XP environment))

Olds Elevator LLC12 B Park AvenueHudson, NH 03051

Tel: 603 882 8899Fax: 603 882 8855

oldselevator@comcast.net

www.oldsusa.com