July 8, 2010
No. 1018 is an electrically-heated, 500º F (~260ºC) three-zone belt conveyor oven from Grieve, currently used for drying ceramic parts. Workspace dimensions are 18” wide x 40’ deep x 18” high. 180 KW (60 KW per zone) are installed in Incoloy-sheathed tubular heating elements, while three 3-HP recirculating blowers (total 12,600 CFM) provide vertical downward airflow to the workload.The unit contains a 12” wide, 1/2” stainless steel flat wire conveyor belt with 1/3-HP motor drive, variable from 2 to 30 inches per minute and has a 30” long open belt loading zone and a 60” long open unloading zone.     This Grieve conveyor oven features 4” insulated walls, aluminized steel exterior and Type 304, 2B finish stainless steel interior, three independent doors for access to the workspace, three 325 CFM powered forced exhausters and the unit was built to NEMA 12 electrical standards.  It has disposable fresh air filters in each zone, including photohelic pressure gauges with alarms.     Controls onboard No. 1018 include SCR power controllers and independent recirculated airflow and temperature controls for each of three 162” insulated heat zones.