SU899095A2 - Dust trapping fan - Google Patents

Description

(54) DUST FAN

one

The invention relates to the technique of wet gas cleaning from solid aerosols and harmful gaseous impurities and can be used in waste incineration plants, in power plants with steam generators operating on solid fuel, as well as in industrial cement production plants using the wet method ceramics and other powdered materials in the metallurgical and chemical industries.

According to the main author. St. N 59551.6 is known for a fan-dust collector that includes a housing with an impeller mounted inside it at the inlet end, made with blades, a nozzle for supplying irrigating fluid, a spraying device installed with a clearance relative to the impeller and with a clearance relative to the inner surface of the hull, the slurry ring, which forms with the hull a slag removal chamber with a discharge pipe C1,

A disadvantage of the known device is the low efficiency of gas cleaning from fine aerosols, since the relative speed of movement of the droplets and the particles to be collected, which determines the coefficient of capture of the droplets, is not large enough.

Invention Bel is an increase in gas cleaning efficiency.

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This goal is achieved by the fact that in a dust collector that includes a housing with an impeller mounted with an impeller mounted inside it at the inlet end, made with blades, a spray nozzle

Claims (2)

15 liquid spraying apparatus, installed with a gap in relation to the impeller and with a gap in relation to the inner surface of the housing, a slurry ring forming a slurry separating chamber with an outlet and a branch pipe, the impeller is equipped with a multi-bar. the rods are parallel to the blade. 3 A prutkova lattice is installed in front of them to go cold (At the gas movement. The drawing shows the proposed torus-dust collector, longitudinal section. The torus-dust collector consists of a housing 1, inside The impeller 2, the electric motor 3, the spraying apparatus 4 and the rod lattice 5 are placed. At the inlet to the fan a nozzle 6 is mounted, fixed on the erosive fluid supply pipe 7. The impeller 2 with the rod lattice 5. mounted on it 8 electrovittels 3. The bars of the lattice 5 are fixed in front of the blades of the impeller 2 along the gas path. Between the impeller 2 and the right device 4 there is a gap 10 forming a centrifuging chamber. On the inner surface of the housing 1 in front of the spraying apparatus 4 there is a slurry-breaking ring 11, which forms with the housing 1 a chamber 12 of the sludge discharge. In the lower part of the housing 1 of the chambers 12, the sludge separation is provided with a sludge removal pipe 13. The vacuum pump dust collector operates as follows. The gas to be purified moves from the axial portion of the rotating impeller 2 to its periphery. At the same time, the gas entrains droplets of the irrigating liquid sprayed by the nozzle 6. The difference in the speeds of movement of the droplets and transportable particle flows, which determines the coefficient of capture of the droplets, is not large enough to ensure high efficiency of gas purification from fine aerosols. The bars of the lattice 5 are characterized by considerably large capture ratios; the circumferential speed of which 5 in many fans can exceed 1OO m / s. Drops planted on the surface of the bars of the lattice 5 form a film of liquid that, under the action of centrifugal forces, breaks off the rods 5 and the blades 9 of the impeller 2 is thrown onto the inner surface of the core-, trigger 1. The purified gas stream moves along the centrifugation chamber the apparatus 4. The liquid film containing the captured solid particles, under the action of the forces of the gruel from the gas flow side, moves along the inner surface of the housing 1 and enters the chamber 12 of the sludge section. Here, the sludge flows into the lower part of the housing 1 and through the sludge outlet, the nozzle 13 is discharged to the outside. Placing in front of the impeller blades in the course of the gas a multi-rod bar will significantly increase the efficiency of gas cleaning without increasing the overall dimensions of the gas-cleaning fan. Invention formula 1. Ventil tor-dust collector according to aut. St. No. 595516, characterized in that, in order to increase the efficiency of gas cleaning, the wheel is provided with a multi rod bar, with. this rods are parapega blades m. 2. Fan torus dust collector according to claim 1, characterized in that the grate is mounted with air-borne blades in the direction of movement of the gas. Sources of information taken into account in the examination of 1, USSR Copyright Certificate №595516, cl. Е 21 F 5 / ОО, 1973. Ю 1 f1 1Z