SU1373900A2 - Airlift for melted salts - Google Patents

Abstract

The invention relates to a device for lifting molten salts and improves service conditions by eliminating melt emissions. The heat exchanger device of the air separator 3 is installed on the air duct 2 in the area of the filter element 4. With this design of the airlift, no pre-drying of the air supplied to the air duct is required, since, passing in series through the device, it enters the lower part of the air duct heated and dried. The use of dry air eliminates melt emissions from the bath. 1 il.

Description

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The invention relates to hydraulic engineering, in particular to devices for lifting molten ools, and is an improvement of airlift for molten salts according to auth. № 1 182203.

The purpose of the invention is to improve service conditions by eliminating melt emissions.

The drawing shows the proposed device, a General view.

The airlift for molten salt contains a lifting pipe 1, an air duct 2 and an air separator 3. At the outlet of the lifting pipe 1 in the air separator 3, a filter element 4 is installed, containing a flange 5, fixing the latter on the lifting pipe 1.

In addition, on the riser pipe 1 there is a cooling jacket 6 with nozzles and a supply and removal of the refrigerant. Airlift communicated with the bathroom 7.

The air separator 3 is equipped with a heat exchange device 8 installed on the air duct 2 in the area of the filter element 4.

Airlift works as follows:

The compressed air through the duct 2 is supplied to the riser 1, where it is mixed with the melt. The mixture of melt and air has a smaller specific gravity than the melt surrounding the riser tube 1 and, according to the law of communicating vessels, rises upwards. At the outlet of the lifting pipe 1, the mixture is poured into the filtering element 4, from which the liquid phase of the melt flows into the air separator 3, where air is separated from the melt. The filter element 4 contributes not only to cleaning the melt from sludge, but also to more intensive release of air from the mixture.

From the dehumidifier 3, the melt is drained into the bath 7. In the filter element 4, sludge is collected, which

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periodically removed. If the melt needs to be cooled, a coolant, such as fan air, is supplied to the pipe. The heated refrigerant through the pipe is supplied to the consumer to heat, for example, hot flush baths.

To facilitate the removal of the filter element 4 together with the slurry tap or other lifting device therein, it rises until the filter element extends beyond the air separator, the slurry is exhausted and the filter element returns to its original position. In practice, humid air is often used, which can lead to melt emissions from the bath, so the air supplied to the duct must be heated.

The proposed airlift does not require pre-drying of air

5 supplied to the duct, since the passage is sequentially through the heat exchange device 8, it enters the lower part of the duct 2 heated and dried. The outlet from the nozzle located at the bottom of the duct 2 mixes air with the melt. The mixture of melt with air, rising along the lifting pipe 1, is poured into the filter element where the melt separates from the air. This air, washing the heat exchanger, heats the air in it, which is fed to transfer the melt.

Claims (1)

Invention Formula Airlift for molten salts according to auth. No. 1182203, characterized in that, in order to improve service conditions by eliminating melt emissions, the air separator is provided with a heat exchange device installed on the duct in the area of the filter element. five 0 five 0