The utility model relates to a kind of secondary
combustion chamber for
solid waste treatment, including shell, the bottom of shell is equipped with air inlet, top is equipped with air outlet, shell bottom is equipped with burner, shell bottom end outside is also equipped with
closed loop wind device,
closed loop wind device is used to the direction of the shell radial direction in the shell for air intake, to make
flue gas
spiral flow from the air inlet to the air outlet;
Closed loop wind device includes two groups of air intake components respectively distributed in the shell two sides, air intake component includes main
pipe and the multiple
branch pipes connected on main
pipe,
branch pipe one end is communicated to the shell, the other end is closed.The utility model increases
closed loop wind device, the
combustion time of original
combustion track is increased from 2.8 seconds to 3.8 seconds, can effectively increase combustion time, reduce the
detonation phenomenon caused by too short combustion time, avoid producing CO
flue gas overproof, can reduce the risk of
flue gas overproof.