The invention relates to devices for decontaminating loose materials using ultraviolet radiation. A modular unit consists of modules arranged in series. A module consists of a square housing, within which ultraviolet radiation lamps are horizontally mounted at an equal distance from one another in such a way that the mutual position thereof can be adjusted. The lamps are equipped with a protective Teflon coating, which is transparent to ultraviolet radiation, and which adheres to the glass of the lamp, and are equipped at the top with a protective shield. An ultraviolet radiation lamp intensity sensor and a device for cleaning lamps of contamination are mounted in the sensor. The modules are mounted on stands, which are secured on a frame equipped with a vibration mechanism. The invention provides for the purification of loose material to remove harmful microorganisms with the possibility of adjusting the rate of flow of particles and monitoring the intensity of radiation.
