Abstract <p>This paper conducts an analysis of thecharacteristics of horizontal heat recovery coke and its application in large-volume blast furnaces. Based on the different structural models of coke used in blast furnaces, a systematic analysis is carried out. At the same time, measures such as adjusting the quality of the coke itself and the operational system of the blast furnace are implemented. The technology for the large-scale application of horizontal heat recovery rammed coke in blast furnaces with a capacity of 1500 m³ and above is developed. This enables a 20–40% increase in the usage ratio compared to the conventional usage ratio, and a long-term stable usage ratio of over 80% is achieved. The goal of achieving efficient and stable operation of the blast furnace is also realized.</p>