AN IMPROVED SPIES VALVE FOR DRAINIG OF ASH IN CIRCULATING FLUIDIZED BED COMBUSTION BOILERS

摘要

An improved spies valve for draining of ash in circulating fluidized bed combustion boiler consists of a shaft (06), a lance pilot (11) attached to the shaft (06), a cooling water inlet (08), outlet lines (09), seating block (07) when a rod (12) is provided at the tip of the lance for disturbing the material in front and for hitting the bigger agglomerated solid mass fragmenting them into small size particle making them flow freely to the ash cooler (13).