SU1416711A1 - Dust removing arrangement - Google Patents

Abstract

This invention relates to mining promet. The goal is to increase the efficiency of dust collection by stabilizing the floor of the corona. Inside the housing 1, which has inlet and outlet nozzles, mix the corona 2 and precipitating 3 electrodes (E). At the same time, E 2 and 3 are made in the form of spatial dielectric frames 11 of two rows of metal strings mounted on parallel-installed along a dusty air flow. Between the frames 11 on the fixed housing 1, the shaft 13 is mounted a fixture 12 for removing dust from O 2 and 3. The fixture 12 is made in the form of 13 blades, which are radially fixed on the shaft, mounted with equal displacement relative to each other. At the bottom of the housing {a dust collector 10 is mounted on the carriage 9. A high voltage source is connected to the C 2 and 3. When a high voltage source is turned on, negative corona charges arise, and quiescent zones form inside the frame 11. Dust particles as a result of interaction with air ions and electrons are deposited at O3. At the same time, the blades 12 alternately hit the strings 2 and 3 and dump dust from them, forming turbulence inside the frame 11 directed towards each other, thereby preventing dust from escaping . 3 il. (ABOUT

Description

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The invention relates to the mining industry and can be used for dust collection in mines and in the workshops of enrichment plants.

The purpose of the invention is to increase the efficiency of dust collection by stabilizing the floor of the corona discharge.

FIG. 1 shows a dust removing device; general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. 2

The device for removing dust includes a housing 1 with corona-forming 2 and collecting 3 electrodes placed in it, an inlet 4 and an outlet 5 nozzle, a sleeve 6 with a nozzle 7 connected to the inlet 4 to supply air to the housing, a high-voltage source 8 of voltage, a fan (not shown) connected to the outlet nozzle 5, and a carriage 9 with a dust collector 10 mounted on it. The corona 2 and collecting 3 electrodes are metal strings stretched on both sides of the dielectric framework 11. The frames are installed along the air flow ha, parallel to one another. The diameter of the string of the corona electrode 2 is 0.1–0.15 mm and is 10–15 times smaller than the diameter of the precipitating electrode 3 to ensure the stability of the corona discharge. The corona electrodes 2 are connected to the negative one, and the collecting electrodes 3 are connected to the positive poles of the high voltage source 8 (10 kV).

To remove dust from the corona and collecting electrodes 2 and 3, between the frames 11, a device 12 is mounted mounted on a shaft 13 mounted in the housing 1 for rotation.

The tool 12 is blades radially arranged on the shaft 13, mounted in each subsequent interelectrode space with an offset of one relative to the other by an equal angle. The blades of the fixture 12 are provided with protrusions 14, by means of which alternate contacting of the scrapers with the strings of the electrodes 2 and 3 is carried out. holes 15 and 16 respectively.

The device works as follows.

A high-voltage source 8 (10 kV) is turned on, and negative corona discharges between electrodes 2 and 3 from the corona-receiving electrodes 2, forming negative ions of air and electrons between frames 11, and quiescent zones are formed inside frames 11 Both sides of the frame electrodes are connected to the same pole of the source 8 voltage. Simultaneously with the voltage source 8, a fan is turned on, and dust that has settled on the walls of the mining, production, through the nozzle 7, the sleeve 6 and the inlet 4 is sucked into the housing 1, where dust particles are charged in the corona discharge plugs as a result of interaction with air ions and electrons and deposited on the precipitation electrodes 3, with ions and electrons not interacting with dust particles being carried by the electric wind into the quiescent zone, inside frame 11, which eliminates the formation of a volume charge in the interelectrode space. spechig called stable corona, which increases the dust collecting efficiency. At the same time as described above, the incoming air flow drives the blades of the device 12, which, alternately touching the projections 14 of the strings of the electrodes 2 and 3, throw off the settled dust from them, with dust particles flipped from the electrodes mounted on one side of the frame 11 moving inwards frame 11, and the dust from the electrodes on the opposite side of frame 11 is discharged with a delay and directed towards, which leads to the formation of vortices inside the frame 11 and prevents dust from leaving the rest zone, while dust particles coagulate and settle under the influence of gravitational forces in the bottom

0, part of the housing 1 and through the openings 15 and 16 roll into the dust collector 10, and the dust-free air through the outlet nozzle 5 is blown out by the fan into the exhaust.

Claims (1)

Invention Formula A device for removing dust, including a housing with inlet and outlet nozzles, a high-voltage source of voltage, connected to corona-forming and precipitating electrodes, a device for removing dust from electrodes and a cart mounted dust collector, characterized in that, in order to increase the efficiency of dust collection by stabilizing the floor corona discharge, the corona-forming and precipitation electrodes are made in the form of spatial dielectric frames installed in parallel along the dust-air flow of two rows of metal strings, and the fixture for dust removal is made in the form of blades that are radially mounted on the shaft, are installed with an equal angle shift relative to each other and with the possibility of rotation and alternate contact with the strings of the corona and collecting electrode. sixteen // Hkhuchuchu iZ 1 12 If jiii . s Khchuhkhuchu -J D Thebes 1 FiaZ