SU812320A1 - Apparatus for cleaning air - Google Patents

Description

I

The invention of ognosigs for filtration, namely, filters for the purification of gas streams from aero-dispersive contaminants, is VIY, and can be used in chemical, metallurgical and. Other industries, especially where the agreed impurities can be returned to production.

A continuous filter for liquids is known, comprising an endless flexible strip of filter material, the drum envelope, whose cross section is represented by a horizontal line segment with a length equal to the width of the tape, and the tape is made in the Mobius strip of sheet. Thanks to this solution, both sides of the tape become working 1 ±.

The disadvantages of this device can be attributed to the entrainment of sediment particles stuck in the pores of the tape together with the washing water when the tape is changed on the drum, which lowers the degree of purification of the filtrate.

 2

It is also known a device for air filtration, comprising a housing divided by partitions into filtration and regeneration chambers, an endless filter belt, an envelope of drive rollers accommodated in the housing, and a regenerating device made in the form of a brush in contact with the surface of the filter belt 2J.

The disadvantages of this filter is that the desire to carry out the most complete regeneration of the fabric in one chamber leads to an increase in tape wear, while at the same time one surface of the tape is working; The device has insufficient operational reliability.

The purpose of the invention is to increase the degree of purification of dust-gas-air flows. and increase operational reliability ..

To achieve the goal of Bi. a device for cleaning a hauler containing an air duct with a filtering chamber and a regeneration chamber and a filtering tape made in the form of a Mebiu3 sheet. Sa, the device is equipped with an additional regeneration chamber, while one of the chambers is installed in the lower part of the duct, and the other one is installed in the upper part and shifted in the direction of movement of the cleaned stream. FIG. 1 shows the device section; in fig. 2 shows the process of cleaning the dust-gas-aaush stream. The device for filtering the dusty-air and air flows includes a housing 1, a filtering chamber 2, made in the form of a rectangular air outlet having slots 3 with supporting rollers 4 arranged in theirs, two rollers 5 are driven; made in the vice Mobius sheet, passing at the outlets from the duct, the regeneration chambers 7c are located in them with regenerating devices. 8, The device operates as follows. The tape is moved counterclockwise. Through the air duct into the filter chamber 2, the gas-fused cleaned dust flows, the movement of which is indicated by arrows, and the dust-filled areas of the tape are dotted. The dust that occurs in the gas stream is deposited on the surface of the belt in position A. When the belt is moving, this section, after having been cleaned in the lower re-ventilation chamber 7, goes to position B by turning at 18O around the longitudinal axis of one of the transverse edges, where it continues to pick up dust. Then, upon subsequent transfer of the Ient, this section, having passed the upper regeneration chamber 7, turns out to be S position B, where final cleaning is carried out by reverse blowing. After that, it moves to position F and then returns to the initial position A. The process is continuous. The duct section is always facing the tape section, which previously passed a reverse blowdown in the b position. Then this clean section is position A, replacing the dirty section of the tape, which in turn, being in the & , are subjected to reverse piercing and moving to position G. The dust carried away from section 6, the section of tape located in position b in position b is partially cleaned in the top 20 regeneration chamber 7 and finally removed from the belt to the position B. The dust precipitated in the regeneration chamber is periodically discharged without disturbing the sealing of the regeneration chambers and without stopping the process. This design makes it possible to combine the positive aspects of regeneration by mechanical means and reverse purging at no additional cost to carry out reverse purging; It allows reducing wear of lerths without compromising the degree of purification of the gas stream, without reducing the quality of regeneration of the filtering tape. The design has increased operational reliability, since the cleaning of the filtering belt is mechanical. the method is duplicated by reverse blowing and in the case of a decrease in the quality of mechanical regeneration, the degree of cleaning of the tape is not reduced. In the device, both surfaces are working, which effectively doubles its working length and, together with the factors enumerated, allows it to extend its service life at least 2 times. Taking into account that a significant share of expenses during the operation of fabric filters comes from the replacement of filtering material, extending the service life of the filtering tape gives a significant economic. Effect. .) formula of the invention 1. An air purification device comprising an air duct with a filter chamber and a regeneration chamber and a filtering belt made in the form of a Mobius strip, characterized in that, it is equipped with an additional chamber of regeneration, with one of the chambers installed in the lower part of the duct, and the other in the upper part. 2. A device according to claim 1, characterized in that the upper regeneration chamber is displaced according to the movement code of the stream being cleaned. Sources of information taken into account in the examination. 1. The author's certificate number 321266, cl. B from 33/14, 1970. 2. Accepted for Japan No. 47-34546, cl. B 01 3 46/18, 1972 2 3

Claims (2)

Claim 1. A device for air purification, comprising an air duct with a filter chamber and a regeneration chamber and a filter tape made in the form of a Moebius sheet, characterized in heme, which, in order to prevent dust particles from entering the cleaned stream and increase dust collection efficiency, the device is equipped with an additional regeneration chamber , while one of the chambers is installed in the lower part of the duct, and the other in the upper part. 2. The device according to π. 1, characterized in that the upper regeneration chamber is displaced in the direction of the cleaned stream.