Novel demineralized water pretreatment device

The utility model discloses a novel demineralized water pretreatment device which comprises a bottom plate, a storage barrel is fixedly mounted on the left side of the top of the bottom plate, a filter tank is fixedly mounted on the right side of the top of the bottom plate, a flocculation barrel is arranged above the storage barrel, and a water outlet pipe is connected to the right side of the flocculation barrel and close to the bottom of the flocculation barrel in a penetrating manner; a filter screen cylinder is fixedly mounted in the filter tank and close to the front side of the filter tank, a scraping ring sleeves the outer part of the filter screen cylinder, a first motor is fixedly mounted on the right side of the filter tank and above the high-pressure water pump, a threaded rod is fixedly mounted at the output end of the first motor, and a threaded sleeve is in threaded connection with the outer part of the threaded rod; and the threaded sleeve is fixedly connected with the top of the scraping ring