Ultraviolet laser sterilization and disinfection system and method based on conveyor belt

Abstract

The invention belongs to the technical field of laser biology, and particularly discloses an ultraviolet laser sterilization and disinfection system and method based on a conveyor belt. The system comprises a conveyor belt device and an ultraviolet laser sterilization and disinfection device, wherein the conveyor belt device comprises two conveyor belts arranged at intervals; the ultraviolet lasersterilization and disinfection device comprises ultraviolet laser sterilization and disinfection modules arranged above the conveyor belts and ultraviolet laser sterilization and disinfection modulesarranged below a gap between the two conveyor belts; each ultraviolet laser sterilization and disinfection module comprises an ultraviolet laser, a beam expanding and turning optical path and a beamshaper; the ultraviolet lasers are used for emitting ultraviolet laser; the beam expanding and turning optical paths are used for expanding light spots of the ultraviolet laser; and the beam shapers are used for shaping the expanded ultraviolet laser into linear ultraviolet laser beams at a specified angle. The laser beam divergence angle is small, the optical power density is high, the system canaccurately sterilize and disinfect the place where the laser beam is located, an object can be rapidly and efficiently sterilized and disinfected automatically in a full-coverage manner, and the system is efficient, safe and effective.

Description

technical field [0001] The invention belongs to the technical field of laser biology, and more specifically relates to a conveyor belt-based ultraviolet laser sterilization system and method. Background technique [0002] Due to the novel coronavirus pneumonia (COVID-19) has the characteristics of strong infectivity and long incubation period, especially under appropriate temperature and humidity conditions, the survival time on the upper surface of objects can reach several days, which greatly increases the difficulty of epidemic prevention . At this stage, there is an urgent need for new disinfecting technologies for bacteria and viruses on the surface of objects to carry out scientific epidemic prevention and disease prevention, improve the intrinsic safety of public health in the country, and protect the health and safety of the people. [0003] For public places such as customs ports, border defense terminals, logistics centers, fresh markets, large supermarkets, etc.,...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above defects or improvement needs of the prior art, the present invention provides an ultraviolet laser sterilization system and method based on a conveyor belt, in which a conveyor belt-based The ultraviolet laser sterilization system, and its key components such as ultraviolet laser, beam expansion and turning optical path, beam shaper and conveyor belt device structure and its specific setting method are studied and designed, which can effectively solve the existing ultraviolet laser sterilization. The laser irradiation area and peak power in the system are only 1mm 2 ~4mm 2 and 5kW, the problem of small sterilization area, long time and low efficiency

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