Equipment for tyre plants
Spent flash steam, used in a steam coil air preheater, so the boiler fires less coal for the same steam.
Tyre plants run boilers for process steam and, on many sites, they also vent or dump flash steam from condensate and process let-down. That steam still holds latent heat. A Grandeh steam coil air preheater puts it into the combustion-air stream instead.
How the coal saving happens
Flash steam enters the coil headers and condenses in the tubes, giving up heat to air blown across the fins. The air arrives at the boiler already warm. The furnace then needs less coal to reach the same steam outlet. Condensate leaves through the return header, traps and vents so the coil stays drained.
The tyre-plant case study is this duty in the yard: a finned coil unit lifted for a plant where spent flash steam preheats boiler air. Fabrication, headers and casing were done at Aurangabad, with IBR-aligned pressure-part practice.
Where else the same coil fits
The same SCAPH arrangement is used where the heating medium is available steam and the air needs a temperature lift before the main air heater — distillery spent-wash boilers and biomass boilers included. On a tyre plant the point is specifically the flash steam that was leaving the process unused.
What to send with an enquiry
- Flash-steam pressure, temperature and how much is available
- Combustion-air flow and the temperature lift you need
- Allowable air-side pressure drop and the duct size
- Coal-fired boiler steam conditions, if the coil serves that boiler