Powered vehicle combining dust collection, overlay mixing and spreading

A high-capacity overlay mixer adapted to cement/concrete floor resurfacing operations, comprising:

• a vehicle comprising a frame with front and rear wheels and a platform to receive an operator;
• a motor and steering mechanism enabling the operator to move the vehicle to desired locations on a floor surface;
• a mixing tank mounted on the frame to receive and mix overlay material, the mixing tank having an upper, closable opening to receive wet and dry overlay materials;
• an agitator for mixing the wet and dry overlay materials once added to the mixing tank;
• a chute disposed under the mixing tank for discharging the mixture onto a floor surface for distribution and spreading;
• a vacuum producer mounted on the frame, the vacuum producer having an input proximate to the opening of the mixing tank to automatically suction dust generated as dry materials are added to the mixing tank;
• a dust filtration and collection system mounted on the frame to receive dust suctioned by the vacuum producer;
• wherein the motor used to move the vehicle comprises a first hydraulic motor coupled to a hydraulic pump driven by an internal combustion engine;
• and
• wherein the vacuum producer is powered by a second hydraulic motor coupled to the hydraulic pump through a vacuum control valve.