EXTRACTOR APPARATUS AND SYSTEM FOR INTACT CROP RESIDUE COLLECTION AND DEPOSITION

摘要

A fan powered extractor system for a harvester, such as a sugarcane harvester, utilizes a rotary extractor screen larger than an air flow path to the fan, that moves through the air flow path such that the air flows through the screen to collect airborne leaves and other crop residue thereon, and carries them from the air flow and deposits them on the ground beside or behind the harvester or on another receiver without passing through the fan. The extractor screen can also pass through the exhaust air flow from the fan for blowing remaining collected residue therefrom, and the location of deposition of the leaves is optionally selectable.

主权项

1. An extractor for a harvester having a conveyor system for conveying cut crops and loose residue, comprising:
a fan disposed in a fan housing including an inlet opening disposed in spaced relation to the conveyor system such that the inlet opening and the conveyor system bound ends of an air flow path therebetween; and a rotary extractor screen having a larger surface area than a sectional extent of the air flow path, disposed in offset relation thereto such that a portion of the extractor screen covers the air flow path such that the air flow along the path will pass therethrough and into the inlet opening, while a larger portion of the screen is located beside the air flow path.