Technical Support Document for Dairy Manure Anaerobic Digester Systems with Digester Gas
Rocky Hill Farm Digester Project - Buzun
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Transcript of Rocky Hill Farm Digester Project - Buzun
Rocky Hill Farm Digester Project
By Marianne, Fran, and Joe Buzun
Constructing the Tube
• Two sections– 36 foot section– 17 foot section
• Two sections welded together for total length of 53 feet.
• Diameter is 10 feet
• Total volume approximately 150 yd³.
• Runs at 60-70% capacity.
Delivery of 36 foot section
Welding the two sections
Completed 53 foot tube
Building the Stanchions
• Poured two square concrete pads.
• Made two stanchions out of I-beams and mounted rollers to top to allow tube to rotate on.
• Stanchions made to different heights to create ideal pitch of tube.
Pouring the Concrete Pads
Placement of stands on concrete pads
Tube is placed onto stanchions
Gearing
• Driven by three horsepower electric motor into a gear reducing transmission.
• Transmission is chain driven which drives main chain around tube.
• Turns one revolution every 15 minutes.
Main Sprocket
Gear Reducer
Gear Reducing Transmission
Finished Machine
• Coated with four inches of insulation.
• Temperature reaches between 140-160°F.
• Handles 30 yd³ daily.
• Material takes three days for completion.
Finished before insulation
Finished after insulation
Material to be composted
Product before screening
Material being loaded
Disney Composting Site