Patent ID: 7287897

Claim:
Device ( 10 ) for mixing a pulverulent or granular solid ( 13 ) with a liquid ( 32 ), having: at least one solid supply device ( 14 ), at least one liquid supply device ( 37 , 38 , 40 ), an acceleration chamber ( 42 ), in which a rotary movement is imparted to the supplied liquid ( 32 ) and the liquid ( 32 ) is accelerated to a pre-determined speed, a solid supply chamber ( 16 ), in which a rotary movement is imparted to the supplied solid particles ( 13 ), a mixing chamber ( 76 ) for mixing the solid particles ( 13 ) with the liquid ( 32 ) to form a suspension, while maintaining the rotary movement generated previously in the acceleration chamber ( 42 ) and the solid supply chamber ( 16 ), a compressor chamber ( 78 ), adapted to accelerate the suspension that is rotating so that a suction effect is generated in an entry region ( 82 ) of the compressor chamber ( 78 ), which suction effect at least substantially de-aerates the supplied loose solid ( 13 ), a rotor ( 54 ) having a first rotor section ( 56 ) located in said solid supply chamber ( 16 ) with a pre-treatment head ( 62 ) contacting, roughly comminuting, and accelerating the supplied solid particles in said solid supply chamber prior to the supplied solid particles flowing to said mixing chamber ( 76 ), and a first detection device for detecting the flow speed of the liquid ( 32 ) in the acceleration chamber ( 42 ) and/or a second detection device for detecting the flow speed of the suspension in the compressor chamber ( 78 ) and a first adjusting device for adjusting the speed of rotation of the rotor ( 54 ) in dependence on the detected flow speed(s).