Segmented counter-flow boiler flue gas desulfurization device

The utility model belongs to the technical field of flue gas desulfurization, and provides a segmented counter-flow boiler flue gas desulfurization device, which solves the problems of low flue gas desulfurization efficiency, poor desulfurization effect and influence on deep desulfurization of flue gas. The contact and reaction time of flue gas and slurry can be prolonged, the reaction is more thorough, and the desulfurization efficiency is higher. Secondly, the slurry with the highest effective content of the absorbent and the part with the lowest sulfur dioxide content in the flue gas are subjected to absorption and chemical reaction, and the part with the lowest effective content of the absorbent and the part with the highest sulfur dioxide content in the flue gas are subjected to absorption and reaction, so that the reaction is more thorough; the desulfurization efficiency can be effectively improved, and the emission concentration of sulfur dioxide in flue gas is reduced. 本实用新型属于烟气脱硫技术领域，本实用新型提供了一种分段逆流式锅