Wear Mechanism Analysis of a New Rotary Shear Biomass Comminution System

Kyungjun Lee; David Lanning; Lianshan Lin; Ercan Cakmak; James R. Keiser; Jun Qu

doi:10.1021/acssuschemeng.1c02542

Wear Mechanism Analysis of a New Rotary Shear Biomass Comminution System

Kyungjun Lee, David Lanning, Lianshan Lin, Ercan Cakmak, James R. Keiser, Jun Qu

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A new biomass comminution system, Crumbler rotary shear, was developed to process fuel-grade biomass. The rotary shear is more efficient than the traditional hammer mill in comminuting high-moisture biomass and producing more uniform particles with minimal fines. However, the milling unit experiences significant wear in processing dirty woodchips. This study investigated the wear mechanisms of the rotary shear system based on analysis of the minerals carried by woodchips and characterization of actual worn components. Abrasive wear was found to be the dominant effect, and localized adhesive wear (material transfer), microfracture (chipping), and plastic deformation were additional effects. Connections have been made between the wear progression of key cutting components and the particle size change of biomass extrinsic minerals. On the basis of the wear mechanism understanding, mitigations based on advanced tool materials and optimized tool geometric designs are being developed for improving the tool life and cutting efficiency.

Original language	English
Pages (from-to)	11652-11660
Number of pages	9
Journal	ACS Sustainable Chemistry and Engineering
Volume	9
Issue number	35
DOIs	https://doi.org/10.1021/acssuschemeng.1c02542
State	Published - Sep 6 2021

Funding

The research was sponsored by the Feedstock-Conversion Interface Consortium (FCIC) of the Bioenergy Technologies Office, Office of Energy Efficiency and Renewable Energy (EERE), US Department of Energy (DOE). This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US Government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Funders	Funder number
Feedstock-Conversion Interface Consortium
U.S. Department of Energy	DE-AC05-00OR22725
Office of Energy Efficiency and Renewable Energy
Bioenergy Technologies Office

Keywords

Abrasive wear
Biomass
Extrinsic inorganics
Rotary shear

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10.1021/acssuschemeng.1c02542

Cite this

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title = "Wear Mechanism Analysis of a New Rotary Shear Biomass Comminution System",

abstract = "A new biomass comminution system, Crumbler rotary shear, was developed to process fuel-grade biomass. The rotary shear is more efficient than the traditional hammer mill in comminuting high-moisture biomass and producing more uniform particles with minimal fines. However, the milling unit experiences significant wear in processing dirty woodchips. This study investigated the wear mechanisms of the rotary shear system based on analysis of the minerals carried by woodchips and characterization of actual worn components. Abrasive wear was found to be the dominant effect, and localized adhesive wear (material transfer), microfracture (chipping), and plastic deformation were additional effects. Connections have been made between the wear progression of key cutting components and the particle size change of biomass extrinsic minerals. On the basis of the wear mechanism understanding, mitigations based on advanced tool materials and optimized tool geometric designs are being developed for improving the tool life and cutting efficiency.",

keywords = "Abrasive wear, Biomass, Extrinsic inorganics, Rotary shear",

author = "Kyungjun Lee and David Lanning and Lianshan Lin and Ercan Cakmak and Keiser, {James R.} and Jun Qu",

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AU - Lanning, David

AU - Lin, Lianshan

AU - Cakmak, Ercan

AU - Keiser, James R.

AU - Qu, Jun

PY - 2021/9/6

Y1 - 2021/9/6

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AB - A new biomass comminution system, Crumbler rotary shear, was developed to process fuel-grade biomass. The rotary shear is more efficient than the traditional hammer mill in comminuting high-moisture biomass and producing more uniform particles with minimal fines. However, the milling unit experiences significant wear in processing dirty woodchips. This study investigated the wear mechanisms of the rotary shear system based on analysis of the minerals carried by woodchips and characterization of actual worn components. Abrasive wear was found to be the dominant effect, and localized adhesive wear (material transfer), microfracture (chipping), and plastic deformation were additional effects. Connections have been made between the wear progression of key cutting components and the particle size change of biomass extrinsic minerals. On the basis of the wear mechanism understanding, mitigations based on advanced tool materials and optimized tool geometric designs are being developed for improving the tool life and cutting efficiency.

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Wear Mechanism Analysis of a New Rotary Shear Biomass Comminution System

Abstract

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Keywords

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