Why is the smoke temperature at the outlet of electrostatic precipitator lower than that at the outlet of induced draft fan?

For the first time in China, the domestic explosion-proof acoustic dust collector was used to remove dust from the air distribution plate at the inlet of the electrostatic precipitator in steelmaking converter, which solved the problems of uneven dust concentration in flue gas and uneven air distribution, which led to dust explosion (Liaoning Zhongxin), and the technical indicators of the equipment reached the level of foreign products.