초록 ▼

A seed cotton drying system of the parallel flow tower type, having vertically spaced horizontal shelves alternately extending from opposite sides of the tower to locations near but spaced from the opposite side to define a continuing zig zag cotton flow path from the top of the bottom through which

A seed cotton drying system of the parallel flow tower type, having vertically spaced horizontal shelves alternately extending from opposite sides of the tower to locations near but spaced from the opposite side to define a continuing zig zag cotton flow path from the top of the bottom through which the cotton travels impelled by the conveying heated air. The spacing of the shelves increases from the top to the bottom, and fresh hot air is introduced between the shelves where there is an increase in shelf spacing.

대표청구항 ▼

Seed cotton dryer apparatus of the parallel flow tower type for conditioning seed cotton for ginning comprising, a vertically elongated drying tower casing having spaced apart vertical lateral walls and front and rear sides and having an inlet adjacent the top for connection to an air duct through w

Seed cotton dryer apparatus of the parallel flow tower type for conditioning seed cotton for ginning comprising, a vertically elongated drying tower casing having spaced apart vertical lateral walls and front and rear sides and having an inlet adjacent the top for connection to an air duct through which seed cotton is conveyed to receive cotton-conveying heated drying air and cotton conveyed by the drying air and having an air and cotton outlet adjacent the bottom, means for conveying heated drying air and seed cotton to the air duct, means for heating the drying air, a plurality of vertically spaced horizontal metallic shelves fixed in the casing transversely spanning the casing between said lateral walls, said shelves from the uppermost to the lowermost commencing alternately from opposite sides of the casing and each terminating short of the side opposite its commencement thereby defining a continuous restricted zig-zag flow path from the upper end to the lower end of the casing communicating respectively with said inlet and said outlet, the heated drying air and cotton conveyed thereby being admitted to the upper end of said flow path at said inlet to be circulated through said flow path for evaporating moisture from the cotton in the dryer while tHe drying air impels the cotton along the flow path, the successive shelves in an upper portion of the dryer apparatus forming a first predetermined vertical subsection having a smaller vertical spacing between successive shelves than the vertical spacing between successive shelves in the remaining portion therebelow forming a second vertical subdivision to provide a higher heated drying air velocity of said drying air over the shelves in said first subdivision than over the shelves in said second subdivision along said flow path, and additional heated air supply duct means connected to the means for heating drying air and to an intermediate portion of the casing for continuously adding further heated drying air without cotton to said flow path at the top of said second vertical subdivision during operation of the dryer apparatus.