Thesis Details


Thesis Title: Optimizing cotton cleaning utilizing Trutzschler's CVT4 cleaner
Thesis Author: Tracy Martin
Abstract: 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.