Multi-effect evaporation concentration device

The utility model provides a multi-effect evaporation concentration device which comprises a multi-effect evaporation concentrator, an air inlet pipe and an air inlet valve, the air inlet pipe is installed on the leftmost side of the multi-effect evaporation concentrator, a connecting pipe is arranged on the left side of the air inlet pipe, a steam filtering pipe is connected to the left side of the connecting pipe, and a heat insulation layer is installed on the periphery in the steam filtering pipe. Compared with the prior art, the steam filtering device has the advantages that by arranging the steam filtering pipe, the microporous filtering plate and the impurity filtering plate, impurities in steam can be filtered out, and the steam filtering device can be used for filtering out the impurities in the steam; compared with the prior art, the multi-effect evaporation concentrator has the advantages that the production cost and the later maintenance cost are lower, and the connecting pipe and the air inlet pi