Tail gas absorption system in barium chloride production process

The utility model provides a tail gas absorption system in a barium chloride production process, which comprises a barium carbonate dissolving tank, a primary reaction tank is arranged at the side part of the barium carbonate dissolving tank, the primary reaction tank and the barium carbonate dissolving tank are communicated through a fan, a secondary reaction tank is arranged at the side part of the primary reaction tank, the top of the secondary reaction tank is provided with a gas discharge port, and the gas discharge port is communicated with the primary reaction tank. A first-stage alkali liquor sprayer and a second-stage alkali liquor sprayer are sequentially arranged in the second-stage reaction tank from top to bottom, and fillers are arranged below the first-stage alkali liquor sprayer and the second-stage alkali liquor sprayer. Compared with the traditional barium chloride tail gas absorption device, the device disclosed by the utility model has the advantages that through two-stage alkali liquor ab