25T Homogenizing Furnace

25T homogenizing furnace. High-end aluminum profiles require good plasticity for the quality of aluminum ingots, uniform composition, no segregation, and small structural deformation stress. In order to meet the requirements, the ingot needs to be homogenized.

■ The furnace body of the homogenization furnace is a box-type forced air heating furnace. Aiming at the characteristics of the charging operation of the aluminum ingot homogenization production process, the furnace adopts the side circulation method. One side of the furnace body is equipped with two frequency conversion speed control low pressure large air volume high temperature shafts The flow fan makes the gas in the furnace directionally circulate. The biggest advantage of this scheme is that it makes full use of the interval between the ingot layer and the layer as the hot air circulation channel, which effectively reduces the temperature difference between the upper and lower sides of the furnace space, and at the same time helps to improve the heat exchange efficiency in the furnace. The fan adopts a high-efficiency fan with a large air volume controlled by a frequency conversion. The installed power is small and the power consumption is low.

■ The burner control system adopts continuous combustion control mode. According to the set furnace gas temperature and the actual detected furnace gas temperature

PID calculation is performed, and the output control quantity controls the opening of the combustion-supporting air regulating valve of each burner, and then controls the opening of the gas proportional valve through the pressure pipe to continuously adjust the combustion load. Each burner is individually equipped with air regulating valve and gas proportional valve, which can be controlled independently. The biggest advantage of this scheme is that it solves the technical problems such as the large difference in the combustion load of the different process stages of the homogenizer, the difficulty of furnace temperature control, and the poor combustion conditions of the burner under low load conditions. The specially developed PLC control program can ensure that the furnace gas temperature is controlled within ±3℃ of the set value