The utility model discloses a
dimethyl carbonate purification device, which relates to the technical field of rectifying towers, and comprises a
tower body, the
tower body is cylindrical, the axis of the
tower body is vertically arranged, a first tower plate and a second tower plate which are staggered up and down are fixedly arranged in the tower body, overflow weirs are fixedly arranged on the first tower plate and the second tower plate, and mounting holes are arranged on the first tower plate and the second tower plate. And an exhaust adjusting unit is mounted in the mounting hole. The device has the beneficial effects that a gas guide
pipe can rotate during lifting through a threaded sliding groove, a fixing plate and a second ball, a material stirring mechanism is driven to disturb instant gas flow sprayed out of a gas hole, the liquid flooding phenomenon is avoided, the gas-liquid contact area is increased, the gas-liquid
contact time is prolonged, the gas-liquid
mass transfer efficiency is improved, the purification purity of
dimethyl carbonate is improved,
energy consumption is reduced, and the device is suitable for popularization and application. And the size of the air hole can be automatically adjusted, so that air flow is controlled, liquid leakage is reduced, stable air-liquid flow in the tower body is maintained, and the problem of unsmooth air outlet or overlarge pressure drop caused by pressure fluctuation is effectively avoided.