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Abstract:
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Triitzschler introduced the CVT4 in 1991 and it has since become a popular
cleaning machine in American textile plants. Triitzschler designed the CVT4 cleaner
to be suitable for all types of cotton and to obtain high cleaning efficiencies with
minimal fiber damage. Even though the CVT 4 cleaner has been on the market since
1991, little published research is available documenting the relationship between
specific machine parameters and the CVT4 cleaning performance.
This research consisted of two parts. The purpose of the first portion of the
research was to gather data on CVT4 machines used in industry. The data collected
from these CVT4 machines were used to identify specific machine parameters that
have a significant impact on cotton cleaning. These parameters were then investigated
in the second portion of the research. The general results are noted below.
1. In the first portion of the research, the wing 4 opening and the visible
foreign matter in the stock entering the CVT4 were found to have a significant
impact on cleaning efficiency and the amount of visible foreign matter in the
stock exiting the CVT4.
2. In the second portion of the research, the wing 4 opening had a significant
impact on the visible foreign matter in the stock exiting the CVT4 and the
percent waste extracted, but not on the amount of visible foreign matter in the
card sliver.
3. The data collected in the second portion of the research indicated there is a
point where increasing the wing opening will not decrease the visible foreign
matter in the stock exiting the CVT 4, but will increase the amount of waste
extracted by the cleaner.
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