Investigation of the structural parameters of the stem layer during fluffing of flax ribbons: new aspects
Year: 2026
Type: article
Abstract: The existing flax ribbon fluffers, despite their high productivity and reliability, do not contribute to increasing the yield of long fiber. The study aimed to evaluate the effect of the fluffing method on the structural parameters of the stem layer and to develop recommendations for improving the fluffing efficiency. The newly developed two-stream flax ribbon fluffer VL-2K eliminates the disadvantages of serial machines. Comparative studies of the structural parameters of the stem layer showed minimal changes in the relative elongation of stems during operation of the VL-2K fluffer compared to the serial VL-3 machine, in which this indicator exceeds the permissible values by almost 2 percentage points. The probability of stem misalignment with the VL-2K P (>28°) = 0.004, whereas the angular disorientation of stems produced by the serial VL-3 fluffer reached a probability of violating agrotechnical requirements of P (>28°) = 0.21. However, to increase the yield of long fiber, it is necessary to reduce stem elongation and misalignment during the fluffing process. Since the possibility of effectively reducing elongation depends on the angular disorientation of stems, to improve the suitability of the layer for subsequent longfiber processing, it is first necessary to minimize existing stem misalignments and only then proceed to eliminate layer elongation. To prevent stem misalignment, it is advisable to observe the following conditions: move the flax stem ribbon over the pickup drum with a kinematic mode index equal to unity; make sure that the pickup drum fingers freely exit the fluffed ribbon under the action of the raceway; make sure that flax harvesting machines spread flax ribbons forcibly and as close as possible to the field surface; avoid unnecessary compaction of stem mass in the ribbons of the retted straw. Stem elongation in the layer can be reduced by butt-end beating. Compliance with these recommendations will help achieve an increase in the yield of long fiber at flax processing facilities.
Source: Agroinženeriâ
Author: A.N. Zintsov
Institution: Kostroma State Agricultural Academy
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7204847246