Abstract A mobile concrete mixing apparatus comprising an aggregate storage bin and cement storage bin mounted on a mobile carrier in spaced relation, a water supply tank mounted on the carrier and in operable communication with a water discharge pipe disposed in the proximity of the cement storage bin, a conveyor apparatus movable beneath and between the aggregate storage bin and cement storage bin for moving materials therefrom for discharge into a mixing auger assembly, the aggregate storage bin containing premixed sand and rock materials for achieving a homogeneous moisture and temperature therebetween, the sand-rock mixture, cement mixture and water being mixed together prior to admission thereof into the mixing auger assembly, the auger assembly comprising a plurality of material moving stages and a plurality of mixing stages interposed therebetween to assure a homogeneous mixture for delivery from the mixing auger assembly, all of the operation of the concrete mixing apparatus being initiated by a single lever operation.
A method of producing concrete comprising the steps of initially premixing a quantity of sand and rock to provide a substantially homogeneous moisture content and temperature for the mixture, delivering a preselected quantity of the sand and rock mixture to a source of dry cement, discharging a preselected quantity of the dry cement onto the sand and rock mixture in accordance with a selected ratio therebetween, applying water to the cement and sand and rock mixture for a prewetting thereof, subsequently directing the prewetted cement and sand and rock mixture into a receiving chamber, moving the mixture from the receiving chamber into a first mixing chamber, forcing the mixture from the first mixture chamber into a conveying chamber by the movement of subsequent quantities of the mixture, forcing the mixture into at least one more mixing chamber by the movement of said subsequent quantities of the mixture, and discharging the mixture for its intended use.
Claim 2
Independent Claim
155 words
A method of producing concrete comprising the steps of initially premixing a quantity of sand and rock to provide a substantially homogeneous moisture content and temperature for the mixture, delivering a preselected quantity of the sand and rock mixture to a source of dry cement, discharging a preselected quantity of the dry cement onto the sand and rock mixture in accordance with a selected ratio therebetween, applying water to the cement and sand and rock mixture for a prewetting thereof, subsequently directing the prewetted cement and sand and rock mixture into a receiving chamber, moving the mixture from the receiving chamber into a first mixing chamber, forcing the mixture from the first mixture chamber into a conveying chamber by the movement of subsequent quantities of the mixture, forcing the mixture into at least one more mixing chamber by the movement of said subsequent quantities of the mixture, and discharging the mixture for its intended use.