FIRE- AND EXPLOSION-HAZARDOUS COMPOSITION MIXING PLANT Russian patent published in 2008 - IPC C06B21/00 B01F7/30 

FIELD: chemical engineering, particularly for gun-powder and explosive mixing, for instance to prepare fire-suppression composition.

SUBSTANCE: mixing plant comprises vertical planetary mixing device, bowl, unloading head and jointing fixing members for bowl connection with unloading head. Jointing fixing members have guiding bushes and movable rods with wedge-like beveled ends. As bushes are joined with wedge-like pads on lower surface of bowl flange bushes are brought into contact. Movable rods are provided with return springs and have vertical orifices of rectangular cross-sections. One orifice wall transversal to movable rod axis is provided with groove having 15°-20° inlet slant. Opposite wall thereof has serially arranged slants extending at 7°-10° and 30°-35° angles. Movable double-sided valve having two wedge-like surfaces arranged from the first valve side is inserted in movable rod orifice. The wedge-like surfaces of the valve are in contact with corresponding movable rod wall orifice slants and with slant of orifice wall groove.

EFFECT: increased functional reliability of jointing members.

4 dwg