Device and method for loading solid particles into a chamber

A device for loading solid particles into a vessel comprising:

• a particle feed means;
• a means for dispersing the particles from the top to the bottom of the vessel, the dispersion means comprising a fixed hollow tube, installed inside a rotating hollow shaft;
• several measurement means for simultaneously measuring a height of a filling bed and a loading profile at the time of loading, said several measurement means having different measurement axes for measuring a distance between the several measurement means and a certain number of points distributed substantially over an entire surface of a loading front, wherein the several measurement means are positioned inside the fixed hollow tube or inside the particle feed mean and is provided with at least one displacement means that allows each of the several measurement means, via a connection means, to be either housed in the fixed hollow tube or the particle feed means, or to partly or completely emerge from the fixed hollow tube or from the particle feed means;
• and
• at least one automated system for controlling at least one of the feed means and the dispersion means.