Silk screen filter for denitrifying agent production

The utility model discloses a silk screen filter for denitrifying agent production, which comprises a frame body and a nitrogen filter layer, one side of the frame body is provided with an insertion port, two ends of the inner wall of the frame body are provided with notches, pressing plates are arranged in the notches, the nitrogen filter layer is inserted into the frame body through the insertion port, and the nitrogen filter layer is arranged in the frame body. The two pressing plates are connected through a clamping assembly, the nitrogen filtering layer tightly extrudes the two pressing plates at the two ends of the nitrogen filtering layer through the clamping assembly to keep sealing, silk screens are fixed to the top and the bottom of the frame body through bolts, and embedding grooves are formed in the top and the bottom of the frame body; the silk screen is embedded in the embedding groove, and bolts penetrate through the sealing strips to fix the silk screen. The nitrogen filter layer can be fixed