West Coast Reduction RotaDisc Dryer Replacement
Vancouver, British Columbia
Replacement of a 50-ton RotaDisc dryer and associated work. The RotaDisc dryer is used to recycle food waste and-products from food producers, like farms, restaurants and supermarkets, transforming them into ingredients used in renewable energy, animal feed, soap and more. Work was conducted over a period of 24 days.
Scope Items
- Site mobilization and safety course/orientation.
- Rotor end bearing/saddle support removals.
- 6×6 wood sliders installation and strapping.
- Strip excess assemblies and place slider guide.
- Install temporary floor angle braces (Peri-form jacks).
- Jack rotor out of shell to temporary wall.
- Arrange wood wall removal and crane schedule.
- Sunday crane logistics and rotor removal.
- Prepare new rotor with bearings and saddles torqued.
- Clean old housing and align for new rotor installation.
- Arrange wood wall removal and second crane schedule.
- Sunday crane logistics installing new rotor into shell.
- Reinstate wood temporary wall after new rotor install.
- Slide rotor into internal bearings and finalize alignment.
- Finish bolt up on housings and end plates.
- Test rotate new rotor and test run all assemblies.
- Final commissioning of rotor assembly and reconnections.
Additional Scope Items
- Cut all the bolts around the end cover plate to allow for removal of the cover plate.
- Cut 80% of the flights off for easier removal of the old Rotadisc drum.
- Fabricated and welded L tabs to attach the timbers to.
- Wire wheel and cleaned off the face of the end plate for a batter seal.
- Welded imperfections on the cover plate and ground flat.
- Wire wheeled pillow block flange and half rings, cleaned and wire wheeled contact locations.
- Cut bearings off and retrieved needed components.
- Fabricated locations in order to be able to place jacks.
- Wire brushed and cleaned all hardware needed.
- Fabricated dogs in order to push out dryer bushing.
- Cleaned and wire wheeled pillow block mounting locations.
- Grinded with sand-paper discs the inside of the dryer, for easier installation of the new drum.
- Tapped and chased all holes for the new stub shaft.
- Torqued all bolts to specification.
- Cleaned and wire wheeled all stub shafts for better seating and sealing.
- Wire wheeled all new bearing components and support rings due to excessive corrosion.
- Moved cover plate out of the way to allow installation of the new drum.
- Washed the inside of the dryer with degreaser.
- Fabricated more slides for new drum install.
- Fabricated lifting eyes and welded into key locations for lifting points.
West Coast Reduction RotaDisc Dryer Replacement
Vancouver, British Columbia
Replacement of a 50-ton RotaDisc dryer and associated work. The RotaDisc dryer is used to recycle food waste and-products from food producers, like farms, restaurants and supermarkets, transforming them into ingredients used in renewable energy, animal feed, soap and more. Work was conducted over a period of 24 days.
Scope Items
- Site mobilization and safety course/orientation.
- Rotor end bearing/saddle support removals.
- 6×6 wood sliders installation and strapping.
- Strip excess assemblies and place slider guide.
- Install temporary floor angle braces (Peri-form jacks).
- Jack rotor out of shell to temporary wall.
- Arrange wood wall removal and crane schedule.
- Sunday crane logistics and rotor removal.
- Prepare new rotor with bearings and saddles torqued.
- Clean old housing and align for new rotor installation.
- Arrange wood wall removal and second crane schedule.
- Sunday crane logistics installing new rotor into shell.
- Reinstate wood temporary wall after new rotor install.
- Slide rotor into internal bearings and finalize alignment.
- Finish bolt up on housings and end plates.
- Test rotate new rotor and test run all assemblies.
- Final commissioning of rotor assembly and reconnections.
Additional Scope Items
- Cut all the bolts around the end cover plate to allow for removal of the cover plate.
- Cut 80% of the flights off for easier removal of the old Rotadisc drum.
- Fabricated and welded L tabs to attach the timbers to.
- Wire wheel and cleaned off the face of the end plate for a batter seal.
- Welded imperfections on the cover plate and ground flat.
- Wire wheeled pillow block flange and half rings, cleaned and wire wheeled contact locations.
- Cut bearings off and retrieved needed components.
- Fabricated locations in order to be able to place jacks.
- Wire brushed and cleaned all hardware needed.
- Fabricated dogs in order to push out dryer bushing.
- Cleaned and wire wheeled pillow block mounting locations.
- Grinded with sand-paper discs the inside of the dryer, for easier installation of the new drum.
- Tapped and chased all holes for the new stub shaft.
- Torqued all bolts to specification.
- Cleaned and wire wheeled all stub shafts for better seating and sealing.
- Wire wheeled all new bearing components and support rings due to excessive corrosion.
- Moved cover plate out of the way to allow installation of the new drum.
- Washed the inside of the dryer with degreaser.
- Fabricated more slides for new drum install.
- Fabricated lifting eyes and welded into key locations for lifting points.
