Hopper Dryer
The hopper dryer of the present invention of a double cylindrical body type which has a heat source at its center is constructed such that both the inner cylinder and the outer cylinder can be removed when the upper part is detached. Therefore, the hopper dryer is easy to disassemble and the body cleaned. This capability is useful especially when the resin materials are frequently exchanged.
As the hopper dryer of the present invention is constructed so as to be concentric with the heat source disposed at the center of body, a substantially larger storing space for resin materials can be attained as opposed to the conventional type of hopper dryer in which the heat source is disposed peripherally.
What is claimed is:
1. A hopper dryer, comprising a main body casing having: 2. an outer cylindrical body; 3. double walls spaced externally of said outer cylindrical body, said double walls comprising an inner wall and an outer wall which form an insulation air layer between them; 4. an inner cylindrical body; 5. heating means situated within said inner cylindrical body; 6. an upper casing, said inner cylindrical body and said heating means mounted to said upper casing.
