IMPROVING DRYER SECTION RUNNABILITY AND EFFICIENCY , 2008 PAPERCON Conference

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As machine speeds increase, sheet stability in the dryer section becomes the main bottleneck and limiting factor in maximizing runnability and efficiency.

The first area to be addressed is the press to dryer transfer and the first dryer section. This area is extremely critical since the sheet web is still very wet and weak. High draws in this area will cause sheet stretching and breakage. To solve this problem, the first dryer section felt transfer roll is moved to the wet end, adjacent to the press center roll; then a transfer box is mounted above the fabric to support the sheet on the fabric.