The automatic filtering system is applied to coating chemical industry

The utility model discloses an automatic filtering system applied to the coating chemical industry. The utility model relates to the technical field of mixed liquid solid-liquid separation. The device comprises a stock solution tank, a primary filtering device, a sediment tank, a secondary filtering device and an air compressor, the primary filtering device comprises a barrel and a filter element; the filter element is inversely arranged in the cylinder body; the stock solution tank is of a funnel-shaped structure; the bottom of the stock solution tank communicates with the barrel through a first liquid conveying pipe; the cylinder is communicated with the top of the stock solution tank through a first return pipe and communicated with the top of the sediment tank through a second liquid conveying pipe, the secondary filtering device comprises a plurality of filter presses, the sediment tank is communicated with the filter presses through third liquid conveying pipes, the filter presses are communicated with