INSTALLATION FOR DRYING FLUIDS WITH THE INERT NOZZLE Russian patent published in 2018 - IPC F26B17/10 

FIELD: technological processes.

SUBSTANCE: invention relates to the drying of dispersed materials and can be used in microbiological, food, chemical and other industries. Disadvantage of the prototype is a relatively low drying performance of the final product. This is achieved like this: in a drying plant with an inert packing comprising a housing with a gas distribution grid and a material injection nozzle, and inside the housing a heated chamber is placed coaxially to it, to the bottom of which a pipe with radial holes is connected and an expanding nozzle with a gas distribution grid for supplying an additional heat carrier. Nozzles for spraying the product are made in the form of at least one acoustic nozzles comprising a housing with an internal acoustic oscillation generator in the form of a nozzle and a resonator, nozzles for supplying air and liquid, the generator of acoustic oscillations is made in the form of a conical nozzle, coaxial with the body, and having an annular throttle opening with an external diameter dc, formed by a cut of the nozzle and a resonator rod of diameter dst and an annular cavity resonator of length h, formed by a resonator rod and a cylindrical cavity with an outer diameter dp in the fastening member. Cavity of the resonator is spaced apart from the cut of the nozzle at a distance b, and the air supply nozzle is perpendicular to the axis of the housing and is connected to an annular cavity, formed by the roller and the inner surface of the housing. On the platen a cage with throttling holes is fixed coaxial with the ring throttle opening, and also a coaxially fixed resonator rod, and the sprayed liquid is supplied through a branch pipe perpendicular to the axis of the housing into an annular cavity, formed by the casing and the outer surface of the nozzle. At the same time, one end of the casing is made solid and connected to the casing. Another end face enclosing the conical nozzle comprises a number of orifices coaxial with the ring orifice. From the side opposite the resonant cavity, there is an adjustment mechanism in the form of a hand wheel with a packer mounted on a free end of the cylinder. External diffuser is coaxially attached to the nozzle casing, and an inner perforated diffuser is coaxially attached to the fastening element of the annular cavity resonator with the resonator rod, so that the output sections of the external and internal diffusers lie in one plane perpendicular to the axis of the annular volume resonator.

EFFECT: increasing drying performance.

1 cl, 2 dwg