Chemical nickel-palladium-gold nickel cylinder circulating pipeline structure

The utility model discloses an electroless nickel-palladium-gold nickel cylinder circulating pipeline structure which comprises a nickel cylinder body, a connecting block installed on the left side of the nickel cylinder body, a fixing shell installed on the left side of the connecting block, a partition board installed on the inner wall of the fixing shell, and a filter screen installed on the inner wall of the fixing shell. The device comprises a fixing shell, two filter screens and a limiting and fixing mechanism, the two filter screens are arranged in the fixing shell respectively, the limiting and fixing mechanism is arranged on the fixing shell, the limiting and fixing mechanism comprises sealing plates, and the two sealing plates are arranged on the left side and the right side of the fixing shell respectively. Through mutual cooperation of the sealing plate, the rotating block, the fixed shaft, the threaded rod, the limiting plate, a handle, an inserting block and an inserting groove, the situation th