Heaters

a. Hopper Heaters: The fly ash from the flue gases passing through the ESP fields are collected in the hoppers below and then carried by ash handling system. Due to moisture content and low temperature inside hoppers, choking & accumulation of fly ash occurs frequently affecting the performance of ESP. Heaters are provided on all 4 sides of hoppers to maintain temperature inside hoppers for effective flow of fly ash to ash disposal system. High Temperature Hopper Heaters are manufactured from incoloy for ESP application for long life. These are designed to withstand Shock & Vibration and when installed on the sides of Hopper and insulated, they provide a blanket Heat Coverage effect.

b. Insulator Heaters: For optimum performance of the ESP the temperature inside the ESP should be maintained suitably. The air ingress through the insulator openings are to be kept hot and for this purpose, heating elements are provided on the Insulators.