ELECTRIC VERTICAL CONVEYOR OVEN FOR STEEL PARTS
The electrically heated No. 961 vertical conveyor oven from Grieve uses 30 KW installed in Incoloy sheathed tubular heating elements for preheating baskets of steel parts.
Posted: November 30, 2010
No. 961 is an electrically heated 350 deg F(~176.67 deg C) vertical conveyor oven from Grieve (Round Lake, IL), currently used for preheating baskets of steel parts. 30 KW are installed in Incoloy-sheathed tubular heating elements. Workspace dimensions are 30 in wide x 62 in deep x 118 in high.
A 4200 cfm, 3 hp recirculating blower provides vertical upward airflow to the workload. Ten 200 lb capacity carriers with roller surfaces, 31 in wide x 14 in long, are supported on each side by a heavy-duty roller chain. The carriers are driven through the conveyor by a 3/4 hp drive motor controlled by a variable frequency drive. Fifteen loading baskets are included with the oven. A loading table with rollers lines up with the rollers on the carriers and a latch holds the baskets in place on the carrier.
Controls onboard No. 961 include a digital temperature controller, recirculating blower airflow safety switch, 10 in diameter circular chart recorder and a manual reset excess temperature controller with separate contactors.
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