Case Study 108: Ovens / Dryers
Industry Sector: Burner Management
Conveyor Dryer

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NEW TECHNOLOGY APPLIED:
Allen Bradley CompactLogix
Allen Bradley Panelview Plus HMI

PROJECT DESCRIPTION:
Staneco Corporation designed a PLC panel with burner and motor controls for an industrial dryer. The drying process consisted of several stages which were heated by natural gas burners. Each stage had exhaust and combustion blowers which were started automatically by the PLC. The burner ignition was controlled by Honeywell flame relays. The material was carried through the dryer by a conveyor with VFD speed control. The temperature of the dryer stages was controlled by PID control loops in the PLC.

PROJECT OUTCOME:
The ability to monitor many variables and store product recipes allowed for greater quality control and increased throughput.