EMPLOYEE WAS A MEMBER OF A 4 PERSON CREW ASSIGNED TO CLEAN-UP THE COOLER ROOM. EMPLOYEE WAS ON THE NORTH SIDE OF #1 CLINKR COOLER ABOUT #3 FORCED AIR FAN, SHOVELING PILES OF CLINKER DUST INTO A WHEEL BARROW WHEN HE SHOVELED INTO A PILE AND HIS SHOVEL CAME IN CONTACT WITH A CONCRETE PIER HOLDING UP THE COOLER CAUSING HIS RIGHT WRIST TO BE SPRAINED.