Downward tangential air injection type non-mechanical solid reinjection device of the circulating fluidized bed

摘要

The present invention relates to a downward tangential pneumatic non-mechanical solid reinjection apparatus of a circulating fluidized bed. The non-mechanical solid reinjection apparatus of the present invention is a non-mechanical solid reinforcing fluid in a circulating fluidized bed having a J-shaped conduit consisting of a horizontal part and a vertical part, and having an air injection part of the horizontal part of the electric conduit and an air injection part of the vertical part of the electric conduit. The injection device is characterized in that the air injection portion of the vertical portion of the conduit is a downward tangential air injection type formed tangentially with an inclination of 30 to 50 ° in the solid flow direction with respect to the vertical wall surface of the conduit. By using the non-mechanical solid reinjection apparatus of the present invention, it is possible to improve the solid circulation rate, the maximum solid injection amount and the flow stability of the circulating fluidized bed.