The utility model discloses an efficient filtering device in water-based paint production. The efficient filtering device comprises an assembling cylinder, a fine filtering cylinder, a coarse filtering cylinder, a material injection cylinder and an assembling cover fixedly mounted at the top of the assembling cylinder, wherein the assembling cylinder, the fine filtering cylinder, the coarse filtering cylinder and the material injection cylinder are concentrically arranged. A material collecting cavity is defined by the fine filter cylinder and the assembling cylinder, the coarse filter cylinder is rotationally installed in the assembling cylinder, the material injection cylinder is rotationally connected with the coarse filter cylinder, a material injection connector and an
impurity discharging connector are formed in the assembling cover, and a material discharging connector is formed in the bottom of the assembling cylinder. An
impurity removal umbrella cap A is fixed at the top of the fine filter
cartridge, an
impurity removal umbrella cap B is fixedly connected at the top of the coarse filter
cartridge, and the impurity removal umbrella cap B is positioned above the impurity removal umbrella cap A. A spiral conveying blade A attached to the inner wall of the fine filter cylinder is mounted on the outer wall of the coarse filter cylinder, and a spiral conveying blade B attached to the inner wall of the coarse filter cylinder is mounted on the outer wall of the material injection cylinder. And the driving
assembly is in power connection with the coarse filter cylinder and the injection cylinder. According to the device, impurities are efficiently removed, the filter
cartridge is prevented from being blocked, the service life of equipment is prolonged, the maintenance frequency is reduced,
production line automation and
economic benefits are improved, and the filtering efficiency is remarkably improved.