Density measuring device and desulfurization device

The utility model discloses a density measuring device and desulfurization device.The density measuring device is used for configuration and density measurement of raw slurry in the desulfurization device.The density measuring device comprises a reaction box used for reaction and storage of the raw slurry; one end of the measuring pipeline is communicated with the bottom of the reaction box, and the other end of the measuring pipeline is arranged at the upper part of the reaction box; the densimeter feeding pump is arranged on the measuring pipeline, an outlet of the densimeter feeding pump is connected with the densimeter, an inlet of the densimeter feeding pump is lower than the outlet of the densimeter feeding pump, and a first valve is arranged at the inlet of the densimeter feeding pump; and the controller is in communication connection with the first valve, the densimeter and the densimeter feeding pump. The densimeter feeding pump is matched with the densimeter for use, so that the flow and the flow sp