DRIER FOR SUSPENDED LAYER WITH INERT HEADPIECE Russian patent published in 2009 - IPC F26B17/10 

FIELD: heating; drying.

SUBSTANCE: present invention pertains to the technology of drying particulates in a boiling bed and can be used in aniline-dye, food, pharmaceutical, microbiological, chemical and other industries. The drier for a suspended layer with an inert headpiece has a drying chamber with a sprayer, gas-distributing array in form of a packet of grids, made from springs, lying in the same plane and joined to vibrating plates of a vibration mechanism, fitted in the drying chamber with provision for rotating about axes. On vibrating plates, more plates with different lengths are fitted in chequered fashion, at an angle of 80...40° to the vibrating plates. The free tops of the extra plates on the right side of the vibrating plates face upwards, while those on the left side face downwards. In the bottom part of the chamber, there is a trapping system, comprising an acoustic device, where there is acoustic agglomeration of fine particles, a cyclone and a bag filter with a storage bin. The sprayer is acoustic and has a case, inside of which there is an acoustic generator in form of a nozzle and a resonator, and inlet pipes for the atomising agent and liquid. The case is in form of a cup with a bottom, inside of which there is case of the acoustic generator, which is in form of a hollow rod with a V-shaped aperture and a nozzle. Liquid enters the annular gap between the outer surface of the resonator and the inner surface of the nozzle. The liquid supply channel is at a tangent to the inner surface of the cup and is in form of a rectangular aperture. Air is let in through a connecting pipe in the case, a valve, located on top of the resonator saddle, and the resonator opening, and then goes through at least, one V-shaped aperture, which is at an angle 30°÷60° to the axis of the resonator. In the annular gap between the inner surface of the cup and the outer surface of the resonator, there is a helical guide, capable of creating a swirling stream of liquid, going into the channel.

EFFECT: increased drying output.

2 cl, 4 dwg