Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 8, Issue 9, Pages 3541-3546Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b06450
Keywords
Biomass; Erosive wear; Abrasive wear; Hammer mills; Failure analysis
Categories
Funding
- Feedstock Conversion Interface Consortium (FCIC) of the Bioenergy Technologies Office, Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy (DOE)
- U.S. Department of Energy (DOE) [DE-AC05-000R22725]
Ask authors/readers for more resources
Biomass, as harvested, is composed of inorganic compounds both intrinsically and extrinsically and can be abrasive. The present study investigates the wear ;nodes and mechanisms of two types of blades of hammer mills used in biomass size reduction (impacting the particle size and distribution) and densification (impacting the size, shape, and density). The dominant wear modes for the stage 1 steel blades are determined to be erosive and polishing wear. For the stage 2 blades with a carbide weld overlay, the main wear mechanisms are erosion and fracture. Partial replacement of Co by Fe in the outer layer of the carbide grits, likely induced by diffusion during high-temperature welding, has been correlated to the observed microcracking. The microcracking is believed to weaken the grit strength and fracture toughness to make the overlay prone to fracture and erosion due to repetitive contact with the inorganic contents in chopping biomass.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available