Sedimentation type self-propagation reactor for compound containing silicon and nitride

The invention discloses a sedimentation type self-propagation reactor for a compound containing silicon and nitride. The reactor comprises a furnace body, a solid material inlet, a gas inlet and a material outlet; the solid material inlet is arranged in the upper portion of the furnace body to guide a silicon-containing solid material to enter into the furnace body, a pulse pneumatic component isarranged on the solid material inlet, and the silicon-containing solid material is pushed into the furnace body by a pulse pneumatic method; the gas inlet is arranged in the side of the furnace body,and is configured to form a self-propagation reaction with the silicon-containing solid material in the furnace body after a nitrogen gas is introduced, wherein the reaction zone is corresponding to areaction zone in the furnace body; and the material outlet is arranged in the bottom of the furnace body, and is configured to output the compound containing the silicon and the nitride after the self-propagation reaction. The self-propagation reaction is carried out in the reactor provided by the invention, a heating member is not needed to be arranged to heat the furnace body, so that energy sources can be saved.