SU1558438A1 - Dust separator - Google Patents

Abstract

The invention relates to air purification devices for dust used in chemical, mining, and other sectors of the national economy, and it allows to increase the efficiency of air purification from dust. The dust separator contains a cylindrical body with a lid and a bottom and four nozzles: inlet, dust outlet and two axial output. Inside the case, between the axial outlets, there is a louvered grille, made in the form of two cones directed towards each other by a smaller base and installed with a gap relative to each other, both cones being connected to each other by a tube, on the side surface of which inside each cone there are holes and the end surfaces are isolated from the space inside each cone. 3 il.

Description

The invention is intended to remove dust from the air and can be used in the chemical, mining and other sectors of the national economy.

The purpose of the invention is to increase the efficiency of air cleaning from dust.

Figure 1 shows a diagram of the dust separator; figure 2 is the same cross section; on fig.Z - louvered grille.

The dust separator has a housing 1, in the upper part of which are inlet tangential nozzle 2, cover 3 and outlet axial nozzle 4, and in the lower part - dust removal nozzle 5, bottom 6 and second outlet axial nozzle 7. Inside the housing 1 there is a louvered grille 8, consisting of two separate inertial separators (cones): the upper 9, attached to the nozzle 4, and the lower 10, attached to

pipe 7. The inertial separators 9 and 10 consist of a set of plates 11 (FIGS. 2 and 3), which are curved towards the movement of air and attached to the pipes 4 and 7 by means of rings 12 and 13, respectively, have

the shape of a truncated cone, and the taper of both inertial separators is directed towards each other. On this side, both inertial separators 9 and 10 are covered with solid round plates 1 and 15. Inside the blister grid 8, there is a tube 16 attached to the plates 14 and 15. Solid plates 17 are attached to the end surfaces of the tube 16

JV JV

00 4b

BO 90

and 18, and on its side surface inside each of the inertial separators 9 and 10 holes 18 are placed.

Dust separator works as follows.

Dusty air through the inlet tangential nozzle 2 enters the inside of the housing 1, where it performs a helical motion from top to bottom. Inside the housing 1, the air flow first makes one or two turns around the upper outlet nozzle 4, where, under the action of centrifugal forces, the air is first cleaned of dispersed particles. Then, the layer-separated air flow enters the cavity between the housing 1 and the louvered grill 8, passes between the plates 11 of the upper 9 or lower 10 inertial separators and through the corresponding output axial patr. felling k or 1 is moved out. With the passage of air through the louvered air grill 8, secondary air is cleaned from dispersed particles by reflecting them from convex plates 11.

The amount of air passing through each inertial separator 9 and 10 decreases as it approaches the middle of the louvered grille 8. To maintain the speed of air passing through the height through each inertial separator 9 and 10. The fall of which reduces the efficiency of air purification from dust, constant, their cross section. decreases as one approaches the middle of the louvre grille 8. Moreover, the preservation of air velocity as it approaches the middle of the louvre grating 8 occurs not only due to a decrease in the cross section of each inertia separator 9 and 10, but also due to a decrease in the live section of the inertia separators caused by a decrease the width of the slots 20 between the plates 1. Near the middle of the housing 1, where the air section between the two outlet pipes 4 and 7 is located, near which the most unfavorable conditions of air separation are located and from dust, the louver grill 8 is interrupted. In this case, the inertia separators 9 and 10 are insulated from each other by means of continuous round plates 1 and 15. This prevents

with

Q 5 0 5

0 p 45 CQ,

five

rotates the dispersed particles of dust inside the inertial separators

9 and 10 from the dead zone located near the air separation between the outlet axial nozzles k and 7 °

During operation of the dust separator, the equality of static pressure inside the inertia separators 9 and 10 may be violated. This leads to uneven air velocity through the slots 20 in both inertial separators 9 and 10 and to a decrease in the efficiency of air cleaning from the dust of the entire dust separator as a whole. Therefore, to prevent violation of the equality of static pressures inside both dust separators, the internal cavities of the inertia separators 9 and

10 are connected to each other by a pipe 16 (its cross-sectional shape may be different, for example, round or square) f on the side surface of which are holes 19 and these holes are located only inside the inertia separators 9 and

Claims (1)

10. Around the space 21 located between the inertia separators 9 and 10, there are no holes on the side surface of the Pipe 16. In order to eliminate the influence of dynamic (velocity) pressure (it will be different for different cross sections of the output axial nozzles C and 7) on the air velocity in slots 20, the end surfaces of the pipe 16 are insulated from the internal cavities respectively of nozzle k, inertial separator 9 and nozzle 7 , inertial separator 10 plates 17 and 18. The formula of the invention A dust separator containing a cylindrical body with a lid and a bottom, an inlet, a dust outlet and two axial nozzles, between which there is a louvered grille inside the body, characterized in that, in order to increase the efficiency of air purification from dust, the louvered grille is made in the form of two cones directed narrow partly towards each other, spaced apart from each other and connected by a pipe with closed ends and holes made on its side surface inside each cone. 17 72 go eleven 1 eleven