Abstract: The invention relates to a cover system (5) for a solid particle lining (3) comprising an articulated structure (11) and an annular casing (13) covering the articulated structure (11), the casing (13) being formed by metal plates (16, 17) sealingly mounted so as to be movable relative to each other, the articulated structure (11) having metal skirts (31) forming articulated concentric circles (33) for supporting the plates (16, 17) of the casing (13) and adapting to the deformations of the lining (3), and metal elements (35) forming articulated spacers (37) making it possible to maintain a spacing between the articulated concentric circles (33) and to adapt to the deformations of the lining (3).

Abstract: The invention relates to a device for filling a container with solid particles, the device having annular ducts for passing particles, which ducts are defined by a plurality of vertical nozzles arranged coaxially relative to one another, and a diaphragm arranged upstream from the annular ducts for regulating the flow rate of particles in the annular ducts, the diaphragm has a plurality of shutter flaps for shutting off the annular ducts, each flap shutting off an angular sector of a single annular duct and the diaphragm having control means for controlling movement of the shutter flaps that are configured to be capable of partially shutting off any one of duct independently of the other ducts. The invention also relates to a method of shutting off a filler device.

Abstract: The invention relates to a device for filling a container with solid particles, the device having annular ducts for passing particles, which ducts are defined by a plurality of vertical nozzles arranged coaxially relative to one another, and a diaphragm arranged upstream from the annular ducts for regulating the flow rate of particles in the annular ducts, the diaphragm has a plurality of shutter flaps for shutting off the annular ducts, each flap shutting off an angular sector of a single annular duct and the diaphragm having control means for controlling movement of the shutter flaps that are configured to be capable of partially shutting off any one of duct independently of the other ducts. The invention also relates to a method of shutting off a filler device.

Abstract: The invention relates to a system for determining relief on a granule filling surface in a petrochemical reactor, the filling direction in which the reactor is filled defining a vertical direction, the reactor having a central vertical axis, the system including a transmitter configured to be positioned above the filling surface in such a manner as to transmit a signal to various points of said surface. The system includes shift means for shifting the transmitter about the central axis of the reactor through an angle that is great than 60°.

Abstract: The invention relates to a system for determining relief on a granule filling surface in a petrochemical reactor, the filling direction in which the reactor is filled defining a vertical direction, the reactor having a central vertical axis, the system including a transmitter configured to be positioned above the filling surface in such a manner as to transmit a signal to various points of said surface. The system includes shift means for shifting the transmitter about the central axis of the reactor through an angle that is great than 60°.