Novel method for determining swing angle of blast furnace distribution chute

The invention is applicable to the technical field of determination of swing angles of blast furnace distribution chutes and provides a novel method for determining a swing angle of a blast furnace distribution chute. The determining tool comprises an I-shaped caliper, an interphone and a cell phone protractor. The method comprises the following steps: enabling one end of the I-shaped caliper to stretch into and tightly attach to the surface of the distribution chute from an inspection manhole by a field surveyor, determining an included angle between the other end of the I-shaped caliper andthe vertical direction by another person by using the cell phone protractor, namely the value of an actual swing angle alpha of the distribution chute, and notifying a blast furnace center controllerby virtue of the interphone. According to the method, the operating procedures are extremely simple, the large access hole in the furnace top does not need to be opened, a measuring operation platformdoes not need to be built,