TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The loop pipeline system comprises conduits (33) arranged along the sidewall of the blast furnace body. The upper ends of all the conduits are connected in a series to form an upper loop conduit. The lower ends of all conduits are connected in a series to form a lower loop conduit. The number and the position of the superconductive loop type heat exchanger loop are corresponding to the conduits in corresponding to the loop pipeline system. Each superconductive loop type heat exchanger loop penetrates through the corresponding conduit and is fixedly connected the corresponding conduit. The superconductive loop type heat exchanger loops are rectangular, and a pipe wall located on one side in the casting curing body is provided with a loop blade made of low carbon steel Q235. A superconductive heat exchange medium formed by water, naphthalene, sodium and/or potassium is filled in the superconductive loop type heat exchanger loops. The casting curing body is connected by once casting or segmented sub-loop prefabrication assembly. The steam utilization device comprises a steam pocket connected with the upper conduit or the lower conduit of each layer on one end and orderly connected with an oxygen remover and a cooler by a branch pipe. A soft water tank is connected between the power generation system and the lower conduit in the loop pipeline system on the top layer. A steam collection box connected between the lower conduit on the blast furnace body and the cooler. The cooler is connected with the upper conduits on the furnace top and the furnace seat of the blast furnace body. The power generation system is connected with the steam pocket by a branch pipe. The power generation system comprises a steam turbine and a condenser connected with the upper conduit on the furnace seat of the blast furnace body. A waste heat refrigeration set is arranged for absorbing and recycling the waste heat of the condenser. A steam and water mixing heater are connected with the waste heat refrigeration set. A blast furnace foundation water-cooling pipe is connected between the waste heat refrigeration set and the steam and water mixing heater. The steam and water mixing heater is connected with the steam pocket by the branch pipe. The loop surfaces of the superconductive loop type heat exchanger loops are vertical to a tangential line of the axis on the connection part of the upper conduits. The superconductive loop type heat exchanger loops penetrate through the conduits. The superconductive loop type heat exchanger loops are fixed on the connection part of the upper conduit and the lower conduit by complete defect-free welding. The sidewall of the blast furnace body is provided with a support for supporting the ring pipeline system, and all the surfaces of the casting curing body are coated with wax paper. High temperature asbestos-free silicon calcium plates are arranged on the surfaces of iron shells of the furnace walls and the furnace body of the blast furnace body. The superconductive loop type heat exchanger loops and the casting curing body are integrated. The integrated height of the casting curing body is more than or less than 250+/-25 mm. The contact surfaces of the sidewall of the blast furnace body and the casting curing body are separated by a composite seam formed by two layers of polyvinyl chloride of 1.5 mm and an aluminum silicate fiber plate of thickness of 3 mm. A temperature sensor for collecting inner temperature and the temperature of regions which are 100 mm, 250 mm and 350 mm away from the furnace wall of the blast furnace body and taking the temperature as a target control valve to satisfy requirements of the steam parameter of the steam turbine and the temperature of the sidewall of not greater than 50 degrees C is arranged in the casting curing body. The temperature of a soft water inlet of the soft water tank is target value for controlling the waste heat refrigerator to produce cold water, and is exposed to the vacuum degree of the condenser and maintained constant.