Dummy ingot sealing method of beam blank continuous casting machine

The invention belongs to the technical field of ferrous metallurgy continuous casting, and particularly relates to a dummy ingot sealing method of a beam blank continuous casting machine. The method comprises the following steps: (1) feeding a dummy bar head to an upper opening of a crystallizer; (2) a starting bolt is placed in the bolt hole to be fixed; asbestos cloth is adopted for sealing; (3) the wool felt and the dummy ingot sealing steel plate sequentially penetrate through the starting bolt to reach the upper surface of the dummy ingot head; (4) the starting bolts are sleeved with the isolation pipes respectively, and scrap iron is added; (5) placing a cold material on the periphery of the starting bolt; (6) pulling the dummy bar head to a flange plate of the crystallizer; (7) the dummy bar head is pulled down to the position 150 mm away from a lower opening of the crystallizer; (8) nail chips are added into the crystallizer, and deformed steel bars are placed in the barrel arranged on the dummy ingot