Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

Lianshan Lin; David Lanning; James R. Keiser; Jun Qu

doi:10.3389/fenrg.2022.754811

Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

Lianshan Lin, David Lanning, James R. Keiser, Jun Qu

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

4 Scopus citations

Abstract

A Crumbler^® rotary shear system was recently developed to process fuel-grade woodchips into feedstocks having more uniform particle sizes for improved flowability and higher thermochemical output yield than a traditional hammer mill. It represents a significant innovation in the state of the art of biomass comminution equipment. However, the milling unit has experienced significant abrasive wear of the feeding teeth and cutters when processing hard and dusty feedstocks, such as logging residue and corn stover. Here, we present initial simulation results from a finite-element stress analysis of the rotary shear, which is used to investigate the dynamics of interaction between the cutters and woodchips. This is the first step for optimizing the cutter design to improve the system lifetime and processing efficiency, thus reducing downtime and improving overall productivity.

Original language	English
Article number	754811
Journal	Frontiers in Energy Research
Volume	10
DOIs	https://doi.org/10.3389/fenrg.2022.754811
State	Published - Feb 14 2022

Funding

This research was sponsored by the Feedstock Conversion Interface Consortium (FCIC) of the Bioenergy Technologies Office, Office of Energy Efficiency and Renewable Energy, United States Department of Energy (DOE).

Keywords

biomass comminution
contact pressure
finite element simulation
tool wear
woodchip

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10.3389/fenrg.2022.754811

Cite this

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title = "Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System",

abstract = "A Crumbler{\textregistered} rotary shear system was recently developed to process fuel-grade woodchips into feedstocks having more uniform particle sizes for improved flowability and higher thermochemical output yield than a traditional hammer mill. It represents a significant innovation in the state of the art of biomass comminution equipment. However, the milling unit has experienced significant abrasive wear of the feeding teeth and cutters when processing hard and dusty feedstocks, such as logging residue and corn stover. Here, we present initial simulation results from a finite-element stress analysis of the rotary shear, which is used to investigate the dynamics of interaction between the cutters and woodchips. This is the first step for optimizing the cutter design to improve the system lifetime and processing efficiency, thus reducing downtime and improving overall productivity.",

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AB - A Crumbler® rotary shear system was recently developed to process fuel-grade woodchips into feedstocks having more uniform particle sizes for improved flowability and higher thermochemical output yield than a traditional hammer mill. It represents a significant innovation in the state of the art of biomass comminution equipment. However, the milling unit has experienced significant abrasive wear of the feeding teeth and cutters when processing hard and dusty feedstocks, such as logging residue and corn stover. Here, we present initial simulation results from a finite-element stress analysis of the rotary shear, which is used to investigate the dynamics of interaction between the cutters and woodchips. This is the first step for optimizing the cutter design to improve the system lifetime and processing efficiency, thus reducing downtime and improving overall productivity.

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Investigation of Cutter–Woodchip Contact Pressure in a New Biomass Comminution System

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