US 12,404,453 B2
Helical stirring system for a plastic conversion vessel
Jay Schabel, Hiram, OH (US); George W. Strekal, Conneaut, OH (US); Richard A. Schwarz, Akron, OH (US); Mehmet A. Gencer, Brecksville, OH (US); and Richard K. Peterson, Huntertown, IN (US)
Assigned to RES Polyflow LLC, San Francisco, CA (US)
Filed by RES POLYFLOW LLC, San Francisco, CA (US)
Filed on Aug. 25, 2021, as Appl. No. 17/411,811.
Claims priority of provisional application 63/071,404, filed on Aug. 28, 2020.
Prior Publication US 2022/0064533 A1, Mar. 3, 2022
Int. Cl. C10B 7/02 (2006.01); B01F 27/091 (2022.01); B01F 27/1124 (2022.01); B01F 27/1143 (2022.01); B01F 27/72 (2022.01); B01F 101/00 (2022.01); B01J 6/00 (2006.01); B01J 19/20 (2006.01); C10B 7/10 (2006.01); C10B 53/07 (2006.01); F23G 7/12 (2006.01)
CPC C10B 7/02 (2013.01) [B01F 27/091 (2022.01); B01F 27/1124 (2022.01); B01F 27/1143 (2022.01); B01F 27/72 (2022.01); B01J 6/008 (2013.01); B01J 19/20 (2013.01); C10B 7/10 (2013.01); C10B 53/07 (2013.01); F23G 7/12 (2013.01); B01F 2101/2805 (2022.01); F23G 2205/121 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A plastic conversion vessel, comprising:
an ingress, an egress, a longitudinal axis, and multiple product gas exhaust vents located at a top of the vessel;
one or more shafts, said one or more shafts, independently, having a rotatable conveying device, said rotatable conveying device comprising one or more rakes for moving waste comprising a liquid, a semi-molten material, or a molten material, or a solid inert residue, or any combination thereof, longitudinally through said vessel towards said egress, said semi-molten or molten material comprising one or more polymers or hydrocarbonaceous compounds, or both;
one or more longitudinally extending brackets attached to the one or more rakes;
one or more scraper blades; said scraper blades operatively, and independently attached to the one or more brackets and able to slide a radial distance inward and outward in relation to the one or more brackets so that they can scrape the bottom of said vessel upon rotation of said conveying device; and
wherein the one or more shafts are located below the longitudinal axis of the vessel such that a headspace for gases is present above the one or more rakes and the one or more scraper blades whereby the gases can exit the vessel through the exhaust gas vents.