SU144086A1 - Pr winding centrifugal dust separator - Google Patents

Description

Known rotary centrifugal dust separators having a housing with inlet and outlet nozzles and an air exhaust pipe placed inside the housing have a low degree of air dust removal.

In the proposed design, the dust separators are installed along the perimeter of its housing along the additional centrifugal dust separators into which a part of the dust enters it through the slots in the housing. Additional dust separators are connected by their lower ends to a dust receptacle bunker, on the lid of which an air exhaust pipe is mounted. Such a dust separator increases the degree of air dust removal

FIG. 1 shows a side view of the proposed dust separator; in fig. 2 is a section along A-A in FIG. one; in fig. 3 is a section along BB in FIG. 2

The dust separator consists of an outer / and an inner 2 pipe, an inlet nozzle 3, a dust collector 4, an outlet nozzle 5, a hopper 6, a throttle valve 7 with control, an upper bottom 8, a support sheet 9 and a guide sheet 10.

Through the pipe 3, located at an angle to the vertical axis of the dust separator, the dusty air enters the space between the outer / and inner 2 pipes and, after several helical turns, goes through the pipe 5 to the second cleaning stage. When air moves along the annular space, solid particles under the action of the centrifugal force move to the inner wall of the outer tube. Having reached the wall of the outer tube, the solid particles lose speed, maintain a helical motion along a trajectory somewhat different from the trajectory of the air flow, and slide along the tube wall. Through the slots of the wall of the outer tube, solid particles with a small amount of air enter the dust collector 4, 144086-2, a double curvature cylinder, depending on the diameter of the dust collector pipe, may be two or more. They are connected to the annular space through a slit passage tangentially forming both the outer / pipe and dust collector 4. The lower part of the dust collector 4 enters through the support sheet 9 into the bunker 6, where solid particles fall from the dust collector to the bottom of the bunker . The air through the inner tube 2, under the action of thinning arising in it, through the holes 11 enters the stream of air just entering the dust separator, and repeats the cleaning cycle. In order to control the amount of air passing from the hopper 6, in the inner tube 2 a throttle valve 7 is installed with control. Part of the solid particles falls on the support sheet 9, which serves both as the bottom of the annulus and the lid of the bunker. These particles enter the bunker through a special slot 12 of the support sheet, located in front of the exit of partially purified air from the dust separator. The guide sheet 10 serves to direct the air flow to the outlet of the hopper.

In the proposed design of the dust separator, the efficiency of dust collection, due to the introduction of original additional cyclones with internal air circulation, is higher than that known, as a result of which the dust separator can be used in a number of industries for cleaning industrial and ventilation emissions, as well as the proposed dust separator is useful and contains novelty elements.

Subject invention

A rotary centrifugal dust separator with a housing fitted with an inlet pipe and outlet nozzles with an air outlet pipe placed inside the housing, characterized in that, in order to increase the degree of air purification from dust, the lower ends of the housing are mounted to the dust receiving hopper , on the lid of which an air exhaust pipe is mounted, additional centrifugal dust separators, into which a part of the dusty air enters through the slots in the housing.

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. 2