SU1398890A1 - Fiilter for cleaning air - Google Patents

Abstract

An air purification filter refers to air purification devices for solid and liquid particles, preferably mist, acids and - - alkalis. Its use will improve the efficiency of air purification during filter operation. The air purification filter comprises a housing 1 with a rotary drum 4 placed between the inlet window 2 and the drum 4 with a confuser 10 and a pattern 11 between the drum 4 and the output window 3 of the diffs 10, and the diffuser 11 and the confuser 10 with wide ends adjoin the windows 2, 3 , and narrow - to the drum 4. In addition, 4 narrow ends installed with a gap to the drum are made with an elastic edging. The filter is also equipped with 11 wedge-shaped partitions installed in the confuser 10 and the diffuser. 2 hp f-ly, 2 ill. with (L

Description

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The invention relates to filters for purifying air from solid and liquid particles and can be used in various sectors of the national economy, mainly for cleaning ventilation emissions from liquid particles — acids and alkalis, removed from electroplating baths and powerful machines. .

The aim of the invention is to improve the efficiency of air purification. Figure 1 shows the proposed filter, general VIEW} in FIG. 2, section A-A in figure 1,

The filter includes a housing 1 with an inlet window 2 and an exit window 3, a ba; raban 4 with a corrugated I filtering grid 5 laid in several layers on its surface, a bath 6 with regenerating fluid 7 ,. upper 8 and 1 lower 9 sealing the partition - Iky. The drum 4 with the grid is partially pr-; loaded in liquid 7,

 Between the input window 2 and the drum 4 is installed confuser 10, adjacent its wide end to the window 2 and narrow - to the grid 5 of the drum and between the output window 3 and the drum 4 is installed diffuser 11, adjacent to its wide, butt to the window 3 and narrow - to grid 5, iDiffuser 11 and confuser 10 are provided with I wedge-shaped partitions 12 for keeping the grid 5 from damage: during the rotation of the drum between the I grid and the narrow ends of the confuser 10: and the diffuser 11, there is a gap and a narrow Topiyj of the confuser and diffuser; mesh 5, framed by a protective

edging 13.

; The filter works as follows

Ventilation air is supplied; to the filtering layers of the grid 5 on the bar I ban 4 through the confuser 10 at a speed that exceeds the speed of the air-1 current in the input window 2 of the filter. This approach increases the effect of inertial sedimentation of particles on the grid and: efficiency of air purification in the filter. Air is also removed from the drum at high speed through the narrow end of the diffuser 11. In this case, secondary air purification occurs, the purified air leaves the filter with a reduced velocity through the exit window 3

When the drum rotates periodically, the grids are moistened and washed in the bath 6 of the regenerating filter.

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liquid 7. A protective edge 13, framing the narrow ends of the confuser and diffuser, prevents damage to the net and seals the gap between them and the drum.

When aligning concent1; and the captured substances in the filter bath and in the source of these substances, the regenerating fluid is drained into said source for reuse. This achieves waste-free production and eliminates the cleaning or neutralization of runoff with the irretrievable loss of trapped substances. Before being discharged to the source, the regenerating fluid is cleaned of mechanical impurities in a known water strainer (not shown). The maintenance and control of the required level of regenerating fluid in the filter bath 6 is carried out by conventional methods.

The proposed constructive solution. This allows to significantly increase the efficiency of air purification by increasing the filtration rate by installing a confinement filter and a diffuser with the calculated area of the g-sh narrow ends, thereby excluding the replacement of the filter size used or adopted in the project with a smaller size.

Claims (3)

1.A filter for air purification, comprising a housing with inlet and aft windows, mounted rotatably with a filter mesh with 5, a bath with a regenerating fluid, upper and lower sealing barriers, and that, in order to improve the efficiency of the air purification process, the filter is equipped with a confuser installed between the inlet window and the drum, and a diffuser placed between the drum and the exit window, while the diffuser and confuser are fitted with wide ends to the windows, and narrow - to the drum. 2. A filter according to claim 1, characterized in that the narrow ends installed with a gap to the drum are made with an elastic edging. 3. The filter according to claims 1 and 2, which is based on the fact that it is provided with wedge-shaped partitions installed in the confuser and diffuser. 12. P  / fig.T