Hot blast stove, a thermal power machine, began to be widely used in China in the late 1970s. It has become a replacement product of electric heat source and traditional steam power heat source in many industries. There are many kinds and complete series of hot blast stoves. They are divided into manual combustion and machine combustion by coal addition, and coal, oil and gas stoves by fuel.

   Through a long time of production practice, people have realized that only using hot air as medium and carrier can greatly improve heat utilization and thermal work effect. The traditional electric heat source and steam thermal power are often equipped with multiple circulating fans in the transmission process, so that it finally forms hot air indirectly for drying or heating operation.

   This process obviously has many disadvantages, such as a large waste of energy, too many auxiliary equipment, complex process and so on. The bigger problem is that this heat source is helpless for the requirements that require higher temperature drying or baking operations. In view of these practical problems, after years of painstaking research, JDC series spiral finned tube heat exchange indirect hot blast stove and JDC series high purification hot blast stove are finally developed, which are welcomed by users at home and abroad.

   The function of hot blast stove of iron making blast furnace is to heat the blast to the required temperature, so as to improve the benefit and efficiency of blast furnace; It works according to the principle of "heat storage". The gas is burned in the combustion chamber, and the high-temperature waste gas passes through the lattice brick and stores heat. When the lattice brick is fully heated, the hot blast stove can be changed to air supply. At this time, the relevant combustion valves are closed, the air supply valves are opened, and the cold air is heated and sent out through the lattice brick. When the blast furnace is equipped with 3-4 hot blast stoves, two or three are heated and one is air supply. When it is replaced in turn, two are heated.