| 摘要 |
<p>A continuous grain drying and conditioning apparatus is provided herein which is of a type including a housing having an air impervious skin; a pair of spaced air pervious walls, for confining a column of grain to be dried, mounted within the housing and forming a column of air between the outermost of the walls and the skin; a plenum chamber formed between the innermost of the pervious walls; blower and burner means having an inlet and an outlet, and mounted within the plenum chamber and spaced inwardly from the innermost wall, including an air duct for controlling the direction of air expelled from the blower and burner means, for causing heated air to be forced through a first zone of the column of grain in one direction to heat and extract moisture therefrom and simultaneously causing air for cooling the grain to be pulled through a second zone of the grain column in an opposite direction to the flow of the heated air; and adjustable plenum divider means mounted within the space between the innermost of the walls and the blower and burner means in the plenum chamber for adjusting the relative extent of the zones and dividing the plenum chamber into first and second air flow sections for optimizing the heating and cooling of the grain in the zones, the plenum divider means including means for substantially sealing the first air flow section from the second air flow section. The improved apparatus has increased drying capacity and efficiency, and achieves optimum use of the available blower air flow capacity.</p> |
