Pretreatment device for environment-friendly flue of Kaldo furnace

The utility model belongs to the field of smelting flue gas treatment, and particularly discloses a Kaldo furnace environment-friendly flue pretreatment device which comprises a base, a support is arranged on the base, a hopper is installed on the support, an inlet is formed in the lower end of the hopper, the inlet is connected with a conveying pipeline, a feeding device is arranged in the conveying pipeline, and the feeding device is connected with the hopper. An outlet is formed below one end of the conveying pipeline; according to the device, the quick lime and sodium carbonate mixed additive is contained in the hopper, then the additive is conveyed into the environment-friendly flue of the Kaldo furnace through the spiral feeding device, the structure is simple, the speed reducer is used for driving the spiral rod to conduct automatic feeding, the additive does not need to be put manually, and time and labor are saved. 本实用新型属于冶炼烟气处理领域，具体公开了一种卡尔多炉环保烟道预处理装置，包括底座，所述底座上设有支架，所述支架上安装有料斗，所述料斗下端设有入口，所述入口连接有输送管道，