Square water jacket

The function of the water jacket is to transfer the temperature of the engine combustion chamber and the inner wall of the cylinder block through heat conduction to transfer heat energy to the coolant. As the liquid is flowable, it is circulated through the water pump to the radiator, where it dissipates heat from the coolant through the flow of external air. Then, the overheated coolant is circulated to the engine water jacket to receive the heat generated by the engine during operation, and so on. To summarize, it is to transfer heat energy.

In actual production, the working conditions in some areas of the blast furnace are extremely harsh. The bosh, waist, and lower part of the shaft of the overall structure of the blast furnace are often impacted by high heat flux. The furnace lining must simultaneously withstand strong high-temperature airflow erosion, burden wear, and slag erosion. During intensified smelting, changes in the structure of the furnace charge and unstable operation cause repeated thermal shock, extrusion, wear, and chemical erosion. This series of conditions can accelerate corrosion of refractory materials and damage to cooling equipment, leading to metallurgical blast furnace shutdown for maintenance, directly reducing the output and life of the blast furnace.

The common solution is to install cooling devices on these parts to strengthen their protection, so as to maintain long-term stable and continuous operation of the furnace body. The method is to embed a cooling water jacket in the brickwork room (in actual production, it is called a water jacket on a nonferrous metallurgical furnace, and a cooling wall on an ironmaking blast furnace).