Solid continuous feeding device

The utility model discloses a continuous solid feeding device and relates to the technical field of chemical experiments. The device structurally comprises a solid feeding hopper and a screw rod, the screw rod is arranged in the solid feeding hopper; a rod body of the screw rod is hermetically and rotatably connected with the upper end part of the solid charging hopper, and the rod body of the upper end part of the screw rod extends to the upper part of the solid charging hopper; at least one charging hole is formed in the side wall of the upper end of the solid charging hopper; a gas inlet is formed in the side wall of the lower end part of the solid feeding hopper; and a pipeline for communication is arranged between the side wall of the upper end part of the solid feeding hopper and the side wall of the lower end part of the solid feeding hopper. Inert gas is introduced into the gas inlet in the upper side of the discharge port, so that caking and blockage caused by contact of steam or other gas in the rea