Cement desulfurization device based on semi-dry method

The utility model discloses a cement desulfurization device based on a semi-dry method, the top of a medicine preparation tank is connected with a water inlet pipe, the bottom is connected with a supply tank and a softened water tank through delivery pipes, and the supply tank and the softened water tank are respectively communicated with a supply pipeline through pipelines; injection points are arranged in flue gas pipelines and humidifying towers at the outlet ends of a cement preheater secondary cyclone barrel, a cement preheater primary cyclone barrel, a cement kiln tail waste heat power generation boiler and a high-temperature fan, flue gas pipelines at the inlet and outlet ends of an electric bag dust collection device and a flue gas pipeline at the outlet end of a tail exhaust fan, and are connected with a supply pipeline; and the supply pipeline is provided with a supply spray gun at a spray point. By matching with an improved desulfurization method, the desulfurization effect can be higher than that