The invention relates to the technical field of
plasma application, in particular to a
plasma grain disinfecting and killing device based on creeping
discharge. The device comprises a
conveyor belt system, a high-
voltage electrode, a grounding
electrode, a
nanosecond pulse power supply module, an
electric control unit and a safety protection structure. High-
voltage electrodes and
grounding electrodes which are arranged in a staggered manner and embedded in a coplanar manner are arranged on the surface of the conveying belt to form a micro-slope
electrode structure; under the excitation of
high voltage,
surface discharge plasma and gliding wind are generated, and the thrust of the
ion wind is utilized to cooperate with the electrode
layout, so that the seeds automatically roll in the conveying process, and multi-angle and all-directional
plasma exposure and disinfection treatment are realized. The device solves the problems of uneven treatment, low efficiency,
thermal damage or chemical residues and the like in the prior art, has the advantages of uniform treatment, environment friendliness, simplified structure, high adaptability and the like, and is particularly suitable for continuous online sterilization and preservation of grain seeds.