Biogas desulfurization chemical absorption tower

The utility model relates to a biogas desulfurization chemical absorption tower, and belongs to the technical field of biogas biological desulfurization. According to the mainly adopted technical scheme, the device comprises a tank body and tower internals, an air outlet is formed in the tank body; the tower internals are arranged in the tank body; the tower internals comprise an alkali liquor distributor, a packing mechanism, a gas inlet device and a sulfur-containing alkali liquor collecting device; wherein the gas outlet, the alkali liquor distributor, the filling mechanism, the gas inlet device and the sulfur-containing alkali liquor collecting device are sequentially distributed from top to bottom. The alkali liquor distributor is arranged to be a pressure type calandria distributor;the pressure type calandria distributor is communicated with an alkali liquor pool outside the tank body through a pipeline, and alkali liquor is sprayed out from nozzles on the pressure type calandria distributor under the a