Cast quick -witted rectangular bloom

The utility model discloses a cast quick -witted rectangular bloom, including the device main part, the device main part includes ladle, middle package, crystallizer, condensing equipment, withdrawingroll, cutting device and moves the base device, and ladle, middle package, crystallizer, condensing equipment, withdrawing roll, cutting device and move the base device according to from the top down's order fixed mounting in proper order, condensing equipment includes liquid nitrogen pipe and backing roll, liquid nitrogen pipe is evenly arranged in condensing equipment's inside both sides, and condensing equipment's lower extreme is fixed with a plurality of groups backing roll, the liquid nitrogen pipe is including pipeline, glass cloth and asphalt mastic, the coating of pipeline surface has asphalt mastic, and the last parcel of asphalt mastic has glass cloth. A cast quick -witted rectangular bloom, can cool off the rectangular bloom fast, reduce complete solidification's time, improveproduction efficiency to,