SU919714A1 - Centrifugal dust and moisture separator - Google Patents

Description

(5) CENTRIFUGAL DUST DEPT.

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The invention relates to a technique for the purification of gases from solid and liquid aerosols and can be used in ventilation systems and systems for the transport conditioning of the engineering and chemical industries.

A centrifugal dust separator for air is known, comprising a housing with an inlet and an outlet 1 and a dust collecting bin, a hollow rotor with a perforated side wall mounted along the axis of the housing on the shaft with a centrifugal wheel, and an electric motor for rotating the rotor shaft and the centrifugal wheel tn.

A disadvantage of the known centrifugal dust / moisture separator is the accumulation of dust on the RSeter, which increases the hydraulic resistance and promotes the re-entrainment of dust and purified air flow.

The purpose of the invention is to increase the degree of separation of dust and moisture particles from air by eliminating the accumulation of dust on the outer surface of the rotor.

The goal is achieved by the fact that the centrifugal dust separator for air, comprising a housing with inlet and outlet nozzles and a dust collecting bin, a hollow rotor with a perforated side wall mounted along the housing axis along the centrifugal wheel, and an electric motor for rotating the shaft, dust collector with gate installed

15 on the body and with the nozzle located vertically tangentially along the rotor to its surface.

FIG. 1 shows the proposed jU dust separator, the section in FIG. 2 is a section A-A in FIG. one.

The centrifugal dust separator includes a housing 1 with a collecting hopper 2 located at the bottom.

The centrifugal wheel 3 is fixed on the shaft of the electric motor 5 and placed in the volute of the centrifugal wheel 6. The thin-walled perforated rotor 7 containing the insert 8 with 3 channels 9 that increase in the direction of the centrifugal wheel coinciding with the perforation is tightly connected with a shaft 10 to the shaft k of the electric motor 5- Nozzle 11 is installed tangentially along the entire length of the rotor 7 in front of the collecting hopper 2 and connected to the dust trap 12 by means of a pipe 13 containing the gate 1. The device works as follows bb-t $ again. When electric motor 5 is turned on, rotational motion is transmitted to shaft j, and from it rotor 7 with insert 8 and centrifugal wheel 3 Centrifugal wheel 3 sucks polluted air into housing 1, from which aerosol particles are released by centrifugal force to the inner surface of housing 1. Selected the particles then enter the hopper 2, and the cleaned air passes through the channels 9 into the centrifugal wheel 3 from where it is directed to the consumer. As a result of the long-term operation of the dust-separator and in the presence of a uniform air flow created by the variable hydraulic resistance of the insert B, a large number of such particles accumulate over the outer surface of the rotor 7, for which the condition of equality of forces acting on the particle, i.e. The centrifugal force resulting from the rotation of a particle with air above the surface of the rotor 7 is equal to the force of frontal pressure caused by the movement of air into the inside of the rotor 7. Violation of this equality leads to the separation of the particle, air from the air flow or its suction.

Claims (1)

centrifugal wheel 3 i. The accumulation of particles above the rotor 7 reduces the quality of air cleaning. In the proposed dust and moisture separator, this is eliminated by periodically feeding a large fraction of the collected dust onto the surface of the rotor 7, i.e. the coarse fraction of the collected dust is loaded into the dust-freezer 12, from where under the action of the weight through the pipe 13 and the nozzle 11 it enters the surface of the rotor 7. The dosing intervals are created by turning the gate 14. Thus, from the surface of the rotor, in the proposed dust separator, large particles of aerosols are carried away , which, at appropriate dosing intervals, prevents particles from accumulating above the rotor surface. DETAILED DESCRIPTION OF THE INVENTION A centrifugal dust separator for air, comprising a housing with inlet and outlet nozzles and a dust collecting bin, a hollow rotor with a perforated side wall. mounted along the axis of the housing on the shaft together with a centrifugal wheel, and an electric motor for rotating the shaft, characterized in that, in order to increase the degree of separation of dust and moisture particles from the air by eliminating dust accumulation on the outer surface of the rotor, the dust separator is equipped with a dust trap installed with a slide valve on the body, and with a nozzle vertically positioned along the rotor tangentially to its surface. Sources of information taken into account during the examination 1. USSR Author's Certificate 5 & 6613 cl. B 01 D 5/12, 1.10.75.