SU1210030A1 - Installation for drying finely dispersed materials in vibroair-fluidized bed - Google Patents

Description

one

The invention relates to installations for carrying out drying processes, mainly chemical reagents and highly pure substances, and can be used in chemical, food, medical and other fragmentation industries.

The purpose of the invention is the intensification of the drying process and the expansion of functionality.

FIG. 1 schematically shows the proposed installation; in fig. 2 - view A in FIG. in fig. 3 shows a section in FIG. one; FIG. 4 is a sectional view of FIG. one.

The installation includes a dispenser I of wet material, a housing 2, a flat plate 3 with a vibrator 4 resting on the housing cover 5 by means of springs 6. Inside the housing there is a nozzle in the form of a vertical cylindrical spring 7 located along the inside surfaces of the walls of the housing 2 and made of round wire Archimedean spirals 8 sections attached to the inner perimeter of the coils of the coil spring 7; The lower and upper ends of the coil spring 7 are rigidly attached respectively to the gas distribution grid 9 and to ibratoru 4 by the rod 10.

The housing is provided with nozzles 11 and 12 for supplying respectively gaseous heat transfer fluid and a wet material and a nozzle 13 for viewing gas and dried material. In order to separate the gaseous coolant and dry material, the installation is equipped with a cyclone 14. The housing 1 has a jacket 15 with a coolant inside.

Installation for drying fine materials works as follows.

The wet material with a dispenser 1 through the pipe 12 is continuously fed into the lower part of the housing 2. At the same time, a gaseous heat carrier is continuously supplied to the housing through the pipe 1 and the gas distribution grid 9. From the working vibrator 4 vibrations through the plate 3 with the help

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the rods 10 are transmitted to the coil spring 7 and the spirals 8 Archimedes. The vibration frequency is controlled by changing the speed of the electric motor of the vibrator 4, and the amplitude by changing the stiffness of the springs 6.

Due to the upward gaseous flow of the heat transfer fluid and the vibration of the coils 8, the dried material is uniformly distributed throughout the entire volume of the housing 2. Direct flow of the gaseous heat carrier and the dried material creates a gentle drying of the material - the heat carrier with the maximum temperature is in contact with the most moist material that Especially important when drying thermostable chemical reagents.

Spiral 8 partitioning volume

height of the body, delays the vibrating layer of the material being dried over the entire volume of the body, increasing its height and eliminating the possibility

The overshoot of undried particles into a cyclone. The height of the vibro-aerosol layer E to the dryer reaches 1-1.5 m, while maintaining the required quality of the product. Under the action of gas and a vibrating coil spring 7, the energy is transferred to the spirals 8, which also vibrate, constantly change their shape and, thus, self-clean from material with high

adhesive properties and disperse it. Vibration of a vertical cylindrical spring 7 in turn eliminates sticking of the material, n: and the walls of the housing 2.

In addition, the achievement of this effect is facilitated by the fact that the spiral 8 Archimedes and the cylindrical spring 7 are made of round wire, which provides them with a minimal surface and prevents its overgrowing by drying out material.

The dried material together with the gaseous coolant through the pipe 13 enters the cyclone 14 where it is separated from it and fed to the packaging.

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Editor G. Volkova

Compiled by I.Isachenko Tehred A.Ach

505/50 Circulation 635 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk emb. 4/5

Branch PPP Patent, Uzhgorod, Project.A, A

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Proofreader S. Cherni

Claims (1)

A BOILER LAYER containing a vertical casing with a gas distribution grill and a plate placed above it, equipped with a vibrator having a rod, to which a nozzle is placed between the grill and the stove, characterized in that, in order to intensify the drying process and expand the functionality, the nozzle is made in the form a cylindrical spring in contact with the walls of the housing, and attached to the inner perimeter of the spring coils of Archimedes spirals from