Washing device of phosphoric acid extraction tail gas

The utility model relates to a phosphoric acid extraction tail gas treatment technology field, especially, washing device of phosphoric acid extraction tail gas, adopt wash tube to substitute through the venturi scrubber with traditional, and the adjustment of adaptability has been done to whole device, especially, study wash tube's structure, feasible gas can be based on the washing principle in venturi scrubber, obtain the washing in through and through wash tube, washing efficiency has been guaranteed, make and be difficult to form adnexed particulate matter on the wash tube inner wall, and then avoid wash tube wall clogging's phenomenon, and the combination of the shower nozzle among wash tube spray set carries out the rational design of position for to a washing performance preferred of tail gas, avoid getting into back among the scrubbing tower a, a large amount of crystallizations takes place, result in shower nozzle among the scrubbing tower a to take place the phenomenon of stopping up, improved the