SU1428475A1 - Vortex dust collector - Google Patents

Abstract

The invention relates to a device for cleaning gases from ache and may find use in various industries. The purpose of the invention is a novelty in the efficiency of depletion by introducing a recirculating current into the swirler in the non-peripheral zone. When cleaning gas in counter-swirling flows, a part of stored gas (1-2% of the volume of gas to be purified), 1Just1 O iioc: ie cleaning into hopper 2 due to the electing effect of the downstream gas inotope in the driver 7. Sucker 7 is returned to the peripheral zone of the hopper 2 and then returned to the dust collector for cleaning. Ploi1, ady channel 10 for the passage of dust gas sucked from the bunker 2 is regulated by semirings 8, installed with the possibility of moving in the radial direction 1 tab. 3 il. with S (L

Description

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The invention relates to devices for cleaning aspiration and process gases from dust and can be used in ferrous and non-ferrous metallurgy, energy, hardware, industry, construction materials and other sectors of the national economy.

The purpose of the invention is to increase the efficiency of dust collection by introducing a recycle stream into the peripheral area of the swirler.

FIG. 1 shows a dust collector, an incision; in fig. 2 - adjusting the recirculation channel; in fig. 3 shows section A-A in FIG. 2

The vortex dust collector contains the body 1, located in its lower part, the hopper 2 and the axial onset 3 of the dusty gas inlet, distributed in the upper part of the case 1, the axial onset 4 of the cleaned gas outlet and the periphery. -aza, swirler 7, installed at the inlet nozzle 3, adjustable flat semirings 8, installed with the possibility of non-repetition in the radial direction ripH of the mechanism 9 are centrally outside the nozzle 3 of the pipe under the vikhikhtich m 7, having a dia meter, large diameter and 3. The nozzle half-rings between the inner surface 8 and the outer surface of the pipe 3 is formed retsir- molecules tsion1N) 1st channel.

Py.chulovitel works as follows.

The entrained gas through the inlet pipe 3 is fed into the swirler 7, where it acquires a rotational motion. When gas passes through the swirler through the running side of the blades and on the vane rim, the swirler has a larger pressure than in the interdirectional nromash. Gas from bunker 2 by ejection; The effect of the main jet is sucked in vortex. 7 and is displaced with the main stream for subsequent cleaning of dust from the agar. Since un. When the gas in the swirler 7 of the main current gas is located on the blades and the walls of the swirl core, the recirculation channel 10 should be located at some distance from the swirl core, which depends on the gas velocity in the swirl and the angle tilt blades. In order to form a channel, it is necessary to size the swirl with a diameter larger than the diameter of the inlet nozzle so that channel 10 between ni is 15-20% of the living section of the swirl. To be able to adjust the channel area, it is closed by two half-rings 8, which, connected, form a flat movable face with a degree of freedom in the radial direction.

The required size of the channel 10 between the outer surface of the inlet nozzle 3 and the inner surface of the movable floor of the ring 8 is established by means of the adjustment mechanism 9. In this case, the protrusions 11 ensure the continuity of the sealing of the gap between the semirings. The device allows, due to the ejection effect, to draw dusty air from the bunker in a volume of I-2% of the total volume of the gas to be purified and direct it to be cleaned again in the periphery zone, eynj.ecTBeHHO, at this efficiency. lavlivani.

The table contains experimental data.

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1.0

At the same time, the flow rate ejected from the air hopper is 1.3% of the flow rate

air through a swirler (32 m / h from

2500 m Uch). The velocity of the air in the air suspension is 20 .m / s.

Claims (1)

Invention Formula Vortex dust collector, housing with a casing, a bunker located in its lower part and an axial nozzle for introducing a dusty gas with a swirler connected by a recirculation channel with a hopper cavity, characterized in that with In order to increase the efficiency of dust collection by introducing a recirculating flow into the peripheral zone of the swirler, it is equipped with two flat half-rings centered outside the inlet nozzle under the swirler made with a diameter larger than the inlet nozzle with mounted with the possibility of the outer surface of the input nozzle and radially displaced by the inner surface of the semirings. centrically outside the inlet nozzle under the swirler, made with a diameter greater than the nozzle inlet nozzle, to form a recirculation channel between  the outer surface of the input pipe and inner surface of semirings. eight 9ig.2