RU1798012C - Group cyclone - Google Patents

Abstract

Usage: for mechanical cleaning of gases from solid dusty impurities in aspiration and gas purification systems in the mining and metallurgical and other industries. SUMMARY OF THE INVENTION: in a group cyclone comprising individual cyclones and a common dust-receiving hopper, vertical partitions are installed in the hopper, which are tightly adjacent to the top and walls of the hopper. In the lower part of the partitions, near the dust discharge opening, cuts are made in the form of a semi-ellipse, the small axis of which is horizontal and equal to the width of the dust outlet. 4 ill.

Description

(L

WITH

The invention relates to centrifugal type apparatuses and can be used for mechanical cleaning of gases from solid dusty impurities in aspiration and gas purification systems in the mining and metallurgical and other industries. . .;. ; . -. . .:

The purpose of the invention is to increase the efficiency of gas purification from solid pulverulent impurities in group cyclones.

In FIG. 1 shows a group cyclone of two elements; in FIG. 2 is a view along arrow A of FIG. 1: in FIG. 3 - bunker group cyclone of 4 elements; in FIG. 4 - bunker of a group cyclone of 6 elements.

The group cyclone contains individual cyclones, each of which has an inlet pipe 1, a housing cover 2, an exhaust pipe 3, a cylindrical conical body 4, a dust outlet 5. a common hopper 6, a dust discharge shutter 7. The hopper is divided into parts by a partition 8, which is tightly adjacent to the top and the walls of the hopper and having a cut-out 9 in the form of a half-Lips on the lower edge adjacent to the dust outlet. The small axis of the ellipse is horizontal and equal to the width of the dust outlet.

The group cyclone works as follows. Dusty gas is introduced at high speed into each individual cyclone through the inlet pipes 1. The exhaust pipes 3 are bent around, and flows in the form of descending spirals are directed down the individual cyclone bodies 4. As they move downward, a part of each stream, cleaned of dust under the pressure difference, is directed to the exhaust pipes 3. The main part of the particles suspended in the gas is inertially moved to the walls of the housings 4 and together with the gas stream moves downward and then passes through the dust outlet |

Yu

00 about

go

openings 5 to separate parts of the hopper 6. Due to a sharp decrease in the gas velocity in the hopper, dust falls out of the gas under the influence of gravitational forces and accumulates in the lower part of the hopper 6.

If the partition fits close to the dust discharge shutter, the flow of gases from one individual cyclone to another is completely excluded. If the partition does not fit close to the dust discharge shutter, then the flow of gases through the hopper from one individual cyclone to another will be possible only until the dust accumulating in the hopper reaches the upper point of the elliptical contour of the lower part of the partition 8 and separates the separate compartments of the hopper . After this, the hopper is divided into independent compartments and gas flow from one cyclone element to another, which occurred at a very small pressure drop, is almost completely eliminated. At the same time, both individual cyclones are already operating with such high efficiency that is inherent to them in a single (independent) operation.

The proposed design allows us to preserve the advantages of group cycles

5

0

5

0

new, consisting in their high productivity and the possibility of using elements of small diameter, which are characterized by high dust cleaning efficiency and to exclude gas flows from some elements of the group cyclone to others, which dramatically reduce the efficiency of dusting in group cyclones in practice. The elliptical shape of the lower part of the partition allows unloading of the hopper from accumulated dust ;. The form of sampling and a group cyclone containing individual cyclones and a common dust collecting hopper with a dust discharge opening having a shutter, heating and so that, in order to increase the efficiency of the dust collection process by eliminating overflow gas through the hopper, it is equipped with one or more partitions that divide the cavity of the hopper from the top to the dust outlet of the hole into insulated sections. The sections are the number of individual cycles and have a half-ellipse cutout adjacent to the left outlet of the edges, ala axis of which is horizontal and equal to the width pylevypusknogo openings.

FIG. / Fig. 2

a

.Ъ a

l

/