Steam fog purification method of banknote printing letterpress silk screen plate cleaning machine

The invention discloses a steam fog purification method of a banknote printing letterpress silk screen plate cleaning machine. The method comprises the steps that a great amount of colored steam fog is generated when the silk screen plate cleaning machine is used for silk screen cleaning, colored steam fog adsorption filtration is conducted through a negative pressure type liquid filtration mechanical device, and first-grade oil and color removing treatment is achieved; a negative-pressure type dedusting mechanical device is introduced through a pipeline to conduct second-stage dedusting treatment through a bag-type filter cloth; gas filtered through the bag-type filter cloth has the abnormal smell of solvent, and an anti-explosion type high-pressure fan and a gas absorption water tank are introduced through pipelines and mutually combined to conduct three-sage gas absormal smell treatment; the gas passing through the absorption water tank is exhausted outside, and steam fog purification treatment of the banknote printing letterpress silk screen plate cleaning machine is achieved. The steam fog purification method of the banknote printing letterpress silk screen plate cleaning machine has the advantages that three stages of steam fog treatment is conducted on the banknote printing letterpress silk screen plate cleaning machine, volatile organic matter steam fog produced by the banknote printing letterpress silk screen plate cleaning machine can be effectively removed, and silk screen printing ink and the abnormal smell of a detergent in a production area are greatly removed.