| 摘要 |
FIELD: heating. ^ SUBSTANCE: plant for solutions drying in boiling bed of inert bodies contains drying chamber with injectors and two gas-distributing lattices. One of gas-distributing lattices contains central cone-shaped distributor. Nozzle from inert bodies is situated between gas-distributing lattices. The other gas-distributing lattice also includes cone-shaped distributor and driving vertical rod installed so that it can be moved vertically and rotationally by means of worm gearing. Central cone-shaped distributors of lattices are directed toward each other. Each injector is centrifugal and contains housing with chamber, where screw with the external threaded groove is located. Besides, bottom of housing is provided with throttling opening. Choke with cylindrical opening is in the top of housing. Threaded opening is available inside screw, and thread direction is opposite or similar to external threaded groove. Agitating chamber is situated under the screw. Agitating chamber consists of cylindrical and tapered parts. Screw is rigidly linked with T-shaped throttle plate, where at least three throttling openings are made in its end cylindrical part. Axial throttling opening is available in axial cylindrical part rigidly connected to end cylindrical part. In addition, hydraulic resistance of throttling openings is selected in dependence on properties of sprayed solution and required rate of dispersion. ^ EFFECT: improvement of drying efficiency. ^ 2 cl, 3 dwg |
