The utility model provides an equipment for glauber's salt system sodium sulphate is used, includes the stirred tank, the vacuum pump, and cyclone, the centrifugal separator, the circulative cooling ware, subsider, its stirred tank pass through the pipeline for the stirred tank that can seal up and top and link to each other with the vacuum pump, and its stirred tank is used for dropping into its stirred tank with the raw materials reactant, and its stirred tank still has cyclone through the tube coupling, and its cyclone has two exports, and an export pipeline is connected with the centrifugal separator, and another export pipeline is connected with the circulative cooling ware, is connected with behind its circulative cooling ware to collect mouthful, and guan yilu is connected with the subsider behind its circulative cooling ware, all has the valve of control break-make between arbitrary two parts of tube coupling. The utility model discloses can use multipurposely the by-product glauber's salt, the preparation glauber salt, avoid in line pollution and direct steam heating crystallization and cause expensive, low problem is rateed to energy utilization.