The present invention provides a particle packing apparatus which can pack uniformly particles of catalyst, etc. without breaking the particles. The particle packing apparatus for packing particles into a vessel, comprises: a base held at a fixed position with respect to the vessel; a distributor which is rotational symmetrical to a central axis extended vertically and distributes the particles; a bearing fixed to the base and holding the distributor rotatably; a particle supplying unit fixed to the base, being rotational symmetrical to the central axis, having a bottom opening being smaller than an inner diameter of the bearing and supplying the particles to the distributor through the bottom opening; and a motor rotating the distributor.

A dosing unit, for the controlled delivery of a solid material, including a silo, for containing the material to be delivered, having on the bottom a discharge mouth, said discharge mouth being circular, at least one extraction auger arranged inside said silo and operable in rotation around a vertical axis, at least one scraper member, located inside said silo and associated with said discharge mouth operable in rotation around said vertical axis, first actuation means of the extraction auger and second actuation means of the scraper member, at least one shutter component positioned below the discharge mouth, and moving means operatively connected to the shutter component to move it with respect to the discharge mouth.

A dosing unit, for the controlled delivery of a solid material, including a silo, for containing the material to be delivered, having on the bottom a discharge mouth, said discharge mouth being circular, at least one extraction auger arranged inside said silo and operable in rotation around a vertical axis, at least one scraper member, located inside said silo and associated with said discharge mouth operable in rotation around said vertical axis, first actuation means of the extraction auger and second actuation means of the scraper member, at least one shutter component positioned below the discharge mouth, and moving means operatively connected to the shutter component to move it with respect to the discharge mouth.

The present invention provides a particle packing apparatus which can pack uniformly particles of catalyst, etc. without breaking the particles. The particle packing apparatus for packing particles into a vessel, comprises: a base held at a fixed position with respect to the vessel; a distributor which is rotational symmetrical to a central axis extended vertically and distributes the particles; a bearing fixed to the base and holding the distributor rotatably; a particle supplying unit fixed to the base, being rotational symmetrical to the central axis, having a bottom opening being smaller than an inner diameter of the bearing and supplying the particles to the distributor through the bottom opening; and a motor rotating the distributor.