The invention provides a normal-temperature spherical
solid projectile injection device which comprises a motor, a stirrer, a discharging chamber, a discharging chamber outlet pipeline, a push-pull
electromagnet, a push rod sleeve, a push rod, a high-pressure air source, a quick valve, a launching
gun barrel, a differential cavity, a vacuum air exhaust
system, a
projectile receiving pipeline, a stop valve and a target chamber. The projectiles in the discharging chamber fall down along the discharging chamber outlet pipeline under the action of the stirrer, the discharging chamber outlet pipeline is connected with the push rod sleeve, the projectiles entering the push rod sleeve are pushed into the launching
gun barrel by the push rod under the action of the push-pull
electromagnet, the high-pressure gas source is connected with the launching
gun barrel through the quick valve, the projectiles are accelerated through high-pressure gas, and the projectiles are launched. The other end of the launching gun
barrel is communicated with the differential cavity, a
projectile receiving pipeline is installed at the end, right opposite to the launching gun
barrel, of the differential cavity, and projectiles flying out of the projectile receiving pipeline pass through the stop valve and then reach the target chamber. The
continuous injection device can realize
continuous injection of the spherical
solid projectile and is used for
continuous injection of the
solid projectile in a
nuclear fusion device.