Dry Bottom Ash Handling (DRYCON) System is a complimentary world-class product added to the product portfolio of the Clyde Bergemann Power Group. Dependent on the quality, quantity and utility of bottom ash, it is absolutely advantageous to adopt a DRYCON system for Dry Bottom Ash extraction. Clyde Bergemann Beekay India Pvt. Ltd. (CBBK), a joint venture formed between BSBK and Clyde Bergemann Power Group to establish in India the latest technology of DRYCON. CBBK’s DRYCON Systems are designed upto capacity of 60TPH and for power plants upto 800 MW.

The DRYCON system is mounted fully sealed to the combustion chamber. The negative pressure inside the boiler sucks air in a controlled manner mainly at the top end of the DRYCON system into the DRYCON system. This air travels in counter flow direction along the surface of the ash, which rests on the conveyor belt. This activates a re-burning process of the glowing ash, which reduces the unburned carbon level and frees up additional thermal energy. The air is heated up before it enters the combustion chamber and adds additional thermal energy to the steam generating process inside the boiler.

Key Advantages of DRYCON

• Totally dry system. With preheating of air, more thermal energy is available.
• Unburned carbon of the bottom ash will be reduced.
• Fine ash, produced by the re-burning process, will be sucked into the boiler by air and discharged as fly ash.
• Milled to a fine grain size, the bottom ash can be used together with the fly ash.