Abstract:The horizontal continuous casting furnace is a kind of copper melting equipment, which is widely used in the production of copper alloy casting ingots of Sn-P bronze, cupronickel and brass, etc. The circulating water system is the key factor for the horizontal continuous casting furnace, which affects its production safety. Besides, the stability of circulating water system directly affects the quality of ingots. After a period of time of the use of the initially designed circulating water system, it was found that some details of the design were unreasonable. Byimproving the system’s temperature, pressure and cleanliness, the problem was solved and its energy saving was remarkable.