SU1680375A1 - Device for aerodynamic cleaning and drying of loose material - Google Patents

Description

The invention relates to the enrichment of bulk materials in the mining, chemical, construction and other sectors of the economy. The purpose of the invention is to increase

('quality of cleaning and drying. Device for aerodynamic cleaning and drying of bulk materials contains pneumosupercharger 1

with heaters 4, a run-up pipe 2 with a hopper 4 and a separation chamber 7 with a fender shield 8 connected to an aspiration system. Along the perimeter of the pipe 2, behind the loading hopper 4, ultrasonic transducers 5 of directional action are evenly located along the course of the material movement. Along the pipe 2 on its inner surface in staggered order with the ability to interact with the transducers 5 are the reflectors 6 of polished stainless steel. Improving the quality of drying and cleaning is provided by the action of ultrasonic radiation from the ultrasonic transducer 5, which is repeatedly reflected from the reflectors 6. 1 h. n. f-ly, 3 ill.

FIG. /

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1680375 A1

1680375

The invention relates to devices

enrichment of bulk materials in the mining,

chemical, construction and other sectors of the economy.

The aim of the invention is to improve the quality of cleaning and drying of the material.

FIG. 1 shows a device, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

A device for aerodynamic cleaning and drying of bulk materials, mainly dispersed, includes a pneumosupercharger 1, a booster pipe 2 with heaters 3, a hopper 4, ultrasonic transducers 5 and reflectors b, a separating chamber 7 with a fender shield 8. connected to an aspiration system.

Device for aerodynamic cleaning and drying of bulk material works as follows.

The source bulk material is fed into the loading hopper 4, from where it enters the accelerating tube 2, which is picked up by high-speed heated air streams from heaters 3 and pneumatic blowers 1, while the particles of the material in the turbulent mode collide and are subjected to ultrasonic effects from ultrasonic transducers 5 and reflectors 6, as a result, phenomena of cavitation, acoustic flow and pressure of acoustic radiation, cleaning particles, occur in the ultrasonic field on the particles of the material, and removed no moisture influenced

2

intense acoustic vibrations of ultrasonic frequencies, which is associated with the acceleration of heat transfer processes in the ultrasonic field. After passing the expansion pipe, the material particles enter the separation chamber 7, where they strike the fender shield 8 in the reflected ultrasonic field and enter the outlet nozzle, and dust and moisture aerosols are removed in

10 aspiration system.

Claims (2)

Claim 1. A device for aerodynamic cleaning and drying of bulk material, which is essentially dispersed, containing successively installed pneumosupercharger with heaters, an accelerating pipe with a hopper, a separation chamber with a fender shield, associated with an aspiration system, characterized in that, in order to improve the quality of cleaning and drying the material, the device is equipped with ultrasonic transducers directional, 25 located evenly around the perimeter of the booster pipe behind the loading hopper along the material movement and reflectors located along the booster pipe on its inner surface 30 in a staggered manner with the ability to interact with ultrasonic transducers directional. 2. The device according to claim 1, of which the reflectors are made of 35 polished stainless steel. b-in