SU1480880A1 - Electric cyclone - Google Patents

Abstract

The invention relates to the purification of gases from dust. An electrocyclone allows you to eliminate breakdowns of electrical insulators and thereby increase its reliability in operation while maintaining a high degree of gas purification. For this, the electrocyclone has a central pipe 7 for supplying a gas flow introduced from bottom to top in the housing 1, and an assembly consisting of a cylindrical nozzle 8, curved blades 11 connected to one of the poles of a high-voltage current source with another pole grounded and installed tangentially to the housing 1 with external sharp edges 12 and a dissector 13 of a concave shape with a central tip, and a cylindro-conical umbrella 20 located above the exhaust pipe 19. 3 Cp f-ly. 1 il.

Description

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The invention relates to the purification of gases from dust and can be used in the metallurgical, chemical, cement and energy industries.

The purpose of the invention is to increase reliability while maintaining a high degree of gas purification.

The drawing shows an electro-cyclone, general view.

An electric cyclone consists of a grounded housing 1 with a conical lower part 2, nozzles for entering the dust-gas flow 3, outputting the cleaned gas 4 and dust 5, and a bunker 6 for collecting dust. Inside the housing 1 there is a central pipe 7 for supplying a gas flow introduced from the bottom up into the housing 1 and connected to the pipe 3, and an assembly (umbrella) located above the central pipe 7 consisting of a nozzle 8 with a cylindrical 9 and a conical 10 parts, curved blades 11, installed tangentially to the housing 1, with external sharp edges 12 and a dissector 13 of a concave shape with a tip 14 central relative to the nozzle 8, directed towards the gas flow. The divider 13 is mounted on an electrically insulated rod 15 passing through the passageway l torus 16 and resting on supporting insulators 17 placed in an insulator box 35

18о In case 1, exhaust pipe 19 is installed coaxially to it, the upper end of which is located below the upper end of the central pipe 7, and an umbrella 20 with a conical 21 and cylindrical 22 parts, deflector 23.

The electrocyclone works as follows.

The dust-gas flow through the nozzle 3 and the central pipe 7, introduced 45 upwards into the housing 1, is fed to the cleaning and is directed through the nozzle 8 of the assembly into a swirler consisting of blades 11 connected together with the nozzle 8 and the divider 13 through 50 racks 15 to one of the poles of a high-voltage current source. On the way to the swirler in the form of curved blades 11, the gas flow is broken by the tip 14 of the splitter 13 and wrapped in channels formed by the curved blades 11, where the flow is twisted, and during contact with the surface of the blades dust particles receive

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electric charge opposite to the grounded polarity enclosure. At the exit from the swirler, the particles receive an additional charge in corona discharges excited on the sharp edges of the 12 blades 11. From the swirler, the downward gas flow takes several turns in the interelectrode gap between the housing 1 and the cylindrical part 9 of the nozzle 8, where the dust is separated from flow under the action of centrifugal and electric forces. Below the nozzle 8 in the gap between the housing 1 and the cylindrical part 22 of the umbrella 20 cleaning is only under the action of centrifugal forces. The cleaned gas rotates under the umbrella 20 and is removed from the electrocyclone through the exhaust pipe 19 and the pipe 4, and the dust flows along the walls of the housing 1 into its conical lower part 2 and through the pipe 5 collects in the hopper 6.

Claims (4)

Invention Formula 1 Electrocyclone containing a grounded housing with nozzles for inlet of dust and gas flow and dust outlet, central exhaust pipe and gas flow distributor, revealing so that, in order to increase gas purification and operational reliability, the gas flow distributor is designed as a cylindrical umbrella placed coaxially in the housing above the central exhaust pipe with curved vanes tangentially mounted on the outer conical part of the umbrella connected to one of the lumens of a high-voltage source of direct current, and equipped with a concave divider with a point central to the nozzle entering the dust-gas flow, h 2. Electrocyclone according to claim 1, characterized in that the nozzle for inputting dust and gas flow is installed along the axis of the housing in the lower part for introducing flow from the bottom upwards, with its upper end placed above the upper end of the exhaust pipe. 3. Electrocyclone in accordance with claim 1, which means that the outer radii of the splitter and the blades are the same 3114PY804 and are equal to the radius of the cylindrical and additional sheaves of the umbrella, 4. Electronylone according to claim 1, about tl and-1 lop tube, due to the fact that it is supplied