Melbourne-based recycling company APR Curbside has started using robots in its material sorting process.
Developed by Canadian company Waste Robotics, the robot was initially used at APR’s Torganina material recovery facility to separate Tetra Pak beverage cartons from the rest of the recycling stream.
Earlier this year, SaveBoard partnered with Tetra Pak to open its first beverage carton recycling facility in Warangamba, New South Wales. There, paper boxes are processed into poly-coated boards that can be used in place of plywood or other boards. Construction industry.
In addition to Tetra Pak cartons, poly-coated boards are also used for packaging used by ready-to-eat food specialists Lite n’ Easy. Disposable coffee cups are also made from this material.
APR is initially shipping Tetra Pak cartons to Warangamba, but has a second facility in Queensland under construction and a third in Victoria in about 18 months with support from the Victorian government. will open, said APR Managing Director Darren Thorpe.
APR currently serves the councils of Ballarat, Hobsons Bay, Yarra, Macedonia and Moyne.
Currently, polycoated boards in these areas are supposed to be put in trash bins instead of recycling bins, but some people put this kind of waste in the wrong bin. We are doing picking times.
Thorpe said residents in three of those municipalities will soon get permission to put the items in yellow recycling bins. After that, the robot should operate at a rated 25 picks/minute. Other councils will also participate in this program.
Waste Robotics did most of the installation work, mostly connecting the robot to electrical and pneumatic supplies. The company also trained APR staff. “They were really good,” he said.
The robot uses a camera to detect items in the waste stream, but “the robot needs to be trained to select specific types of materials,” he explained.
Training the robot’s AI involves creating at least 20 models to recognize relevant packages in both standard and high-quality mixed recycling streams.
This involves analyzing the video feed from the robot for about 5 minutes and manually identifying relevant items. The process is then repeated so that the robot can select the highest quality items.
In addition, you can create a “contaminant” model to avoid accidentally selecting unwanted items that look similar.
APR Advanced Pyrolysis Executive Logan Thorpe explained that the process ran over several weeks to minimize disruption to the facility.
He said the robot has achieved an accuracy of 92% to 97%, with 90% to 95% being an acceptable level.
With further tweaks from time to time, you can get consistently good results, he said.
Apart from this initial use of robots, sorting at APR facilities is a manual process. Logan said automation helps improve efficiency. For example, if all Tetra Pak has already been removed, further sorting of recyclables is simplified and higher quality sorting increases product value.
At the same time, less recyclable items are thrown away, resulting in more product volume.
The payback period for the project is uncertain, as it depends in part on how quickly SaveBoard’s additional facilities come online, he said.
APR is also investing in advanced recycling processes to handle polypropylene and is considering robotic sorting of meat trays made from the material. Soft plastic is another candidate, although other types of materials may be added to the list over time.
“AI is a great technology” [for this purpose]said Mr. Logan. This means that ‘we have a little more innovative capacity’ and can recycle a wider range of materials.
Thorpe said AI robots are a viable investment to take innovative action on products that are sent to landfills: “With Tetra Pak’s help, we are making progress in technology targeting carton packaging.” We look forward to investing in and consolidating that raw material for further processing.” ”.
“We are considering introducing more AI robots as part of our upgrade and expansion plans. It is our mission to continuously support infrastructure and achieve a circular economy,” he added.
