Bi-drum Boilers

Powermax – Bi-Drum Boiler

Powermax is a two-drum water tube boiler from Thermax. Powermax can be used to combust a wide variety of fuels.

Powermax is most suited for applications that require uninterrupted boiler operation even on fuel which have a high fouling tendency. Powermax can be used for generating saturated steam as well as superheated steam. Superheated steam is used for incidental power generation or cogeneration power in industries such as distilleries, paper, solvent extraction, rice, textiles, etc.

Powermax is available in different combustion systems depending on the fuel.

• FBC is suitable for burning coal or lignite or other agro-based low-grade fuels
• Dumping grate or pulsating grate is suited for burning fibrous & moist fuels obtained from industrial waste & agricultural residues
• Travelling grate is suited for burning low ash fuels

Product Features

• High capacity heating system
• Available in different combinations – FBC, Dumping Grate/Pulsating grate, Travelling Grate, Pulsating Grate
• Multi-fuel option – coal/lignite/wood/agro-based fuels/biogas

Operating Range

• Capacities: Up to 30 TPH
• Pressure: Maximum pressure of 45.0 Kg/cm2 (g)
• Temperature: Up to 450ºC
• Firing fuels: Indian & imported coal, lignite, wood, paddy husk, groundnut shells, coffee husk, Bagasse, biogas, etc.

Bi-Drum boiler is generally used to generate high steam-pressure required for incidental power generation or cogeneration. It is also used for saturated steam applications, which demand uninterrupted operation on highly choking fuels. This boiler is rugged and can operate continuously throughout the year. In addition, since it has small water content, it responds rapidly to changes in loads and heat inputs.

In Bi-Drum boilers, water is circulated inside the tubes, with the heat source surrounding them. The energy from the heat source may be extracted as radiant or convective & conduction. The furnace or radiant section is an open area accommodating the flames. The walls of the furnace section are lined with finned tubes called membrane panels, which are designed to absorb the radiant heat from the flame.

The convection section is designed to absorb the heat from hot gases by conduction and convection.

Bi-Drum boilers are categorised by:

• Reservoir drum position – longitudinal or cross drum
• Number of drums – single or double