BATCH SEED COATING APPARATUS

摘要

A batch-type particulate treating apparatus (10) includes an upright bin or hopper (20) equipped with a central, rotatable lifting augur (68) having a bored shaft (70) and helical flighting (80, 82). Coating liquid passes through the bore (72) of shaft (70), and is delivered through ejectors (86, 88) mounted on the augur flighting (80, 82). A pneumatic assembly (16) serves to direct pressurized air upwardly through a clearance (96) between the augur base and the adjacent inner surfaces of hopper (20). In operation, liquid coating material is ejected into the particulates during rotation of the augur (68) and operation of the pneumatic assembly (16), in order to uniformly and efficiently coat the particulates. The apparatus (10) is particularly designed for treating of seeds.

主权项

1. A particulate treating apparatus comprising:
an upright particulate bin; an upright, axially rotatable augur located within said bin and including an elongated, axially bored shaft and outwardly extending helical flighting along the length of the shaft, there being an outlet in communication with said shaft bore and the interior of said bin; and structure for delivery of a liquid coating material into said shaft bore, and for conveying the liquid through said outlet, in order to coat particulate material within said bin during rotation of said augur.