Milling efficiency and technology

Permanent URI for this collectionhttp://elibrary2.sugarresearch.com.au/handle/11079/13845

Research outcomes: Optimised mill transport and logistics. Mill capacity and efficiency is optimised through improved processes, technology and value chain coordination and collaboration.

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1995 - 19983

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Author: search.filters.author.Anderson, SIHas files: Yes

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Now showing 1 - 3 of 3
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    Determination of fracture properties of cast steels : final report JCU9S
    (SRDC, 1998) Anderson, SI; Loughran, JG
    Technology currently exists to estimate the structural durability of cracked sugar mill gears and mill roller shafts. Both SRDC projects JCU2S (Crack detection and durability assessment of low speed gears) and JCU6S (finite element and durability modelling of roller shells and shafts) involve the application of linear elastic fracture mechanics to assess cracked components in• Australian sugar factories. The benefits from these projects could not be fully realised due to the lack of fracture property data for Australian manufactured gear and shaft steels.
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    Crack detection and durability assessment of low speed sugar mill gears : final report JCU2S
    (BSES, 1995) Anderson, SI; Loughran, JG
    Heavy low speed gearing used by the Australian Sugar Industry is manufactured according to code specifications. These gears fail in several ways with the most common failure modes being the gradual surface fatigue of the contacting teeth due to poor lubrication and sudden tooth fracture resulting from the presence of cracks. Over the last decade, sudden gear failures have cost .the industry millions of dollars. The problem is exacerbated by the unexpected lost production time and cost of gear replacements.
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    Finite element and durability modelling of roller shells and shafts : final report JCU6S
    (BSES, 1998) Anderson, SI; Loughran, JG
    The technology that has been adopted by the Australian raw sugar industry for roller shells and shafts has evolved over the past 40 years. Apart from Crawford's theoretical calculations on shell design and Cullen's factory experiments on operational stress states in roller shafts, little has been done to address the current problems associated with up to 10 mill roller failures each year. Ultrasonic testing of shafts has been used as a means of identifying problem shafts for many years. However, despite this, cracked rollers still prevail. The problem is exacerbated when one considers the operational costs associated with the removal of problem rollers during continuous crushing or an unplanned shutdown due to a roller failure.