Effectiveness of three types of grain separator for crop matter harvested with a stripping header

摘要

The performance of three types of separator (axial flow, straw walker and multi-cylinder), designed to separate grain from material other than grain (MOG), were tested in the laboratory and field. The straw walkers were mounted in a conventional combine harvester and the multi-cylinder separator in an experimental trailed stripper harvester, and evaluated during in-field harvesting trials. An axial flow separator was built especially for laboratory evaluation. The crops used for the tests had all been harvested with stripper headers and passed through conventional threshing drums. The grain and MOG that passed through each stage of each separator under test was collected by trays along the machine so as to reveal how the individual stages of the separators performed, and hence inform developments in separator design. Although the data were gathered from independent evaluations of the three separators, useful comparisons were possible.