SU548304A1 - Gas cleaning filter - Google Patents

Description

one

The invention relates to a technique for cleaning gas from dust in the chemical, energy, metallurgical industry, in the production of building materials.

A filter is known for cleaning the source of gas from dust, comprising a housing with a granular layer of dielectric granules, a vibrator mounted on the housing, and a hopper for collecting the collected dust.

In the well-known filter, in addition to filtration by the granular layer, the property of electrifying the grains of the layer by friction and vibration is used, which improves the cleaning of the gas.

A filter for cleaning the gas stream from dust is also known, including a case with a granular layer of granules of dissimilar dielectrics, a vibrator mounted on the case, and a hopper for collecting the caught material. The formation of a granular layer of dissimilar dielectrics enhances the ability of electrification of grains in friction among themselves.

In the process of gas cleaning in the layer and accumulated dust that must be removed. Therefore, the filter is switched from the cleaning mode to the regeneration mode, which reduces the filter performance.

The invention is an increase in filter performance by implementing continuous regeneration in the operating mode.

This is achieved by the fact that the filter has a dielectric metal spinning drum with dielectric filaments pulled over them, the iric dielectric drum is placed in the granular layer, and the metal one is above the bunker. In order to carry out continuous regeneration but the whole layer, the drums are arranged in a checkerboard pattern. Improved regeneration is also facilitated by the fact that the dielectric filaments located nearby are made of dissimilar materials.

FIG. 1 and filter is set; in fig. 2 shows a section along AA-A and FIG. one; in fig. 3 is a section along BB and FIG. one.

In the case 1 of the filter, grids 2, 3 are installed. On grid 2 a granular layer 4 of

granules of dissimilar dielectrics, and grid 3 is a layer 5 of rubber granules. A vibrator 6 is mounted on the filter housing. The drive drums from dielectric 7 are placed in the granular layer 4, and the metal drive drums

barabaia 8 - outside the granular layer above the bunker 9 for collecting the collected dust. For each pair of Barbadians (in the two examples, irivideii example) from a dielectric and a metal, dielectric iiti 10, for example, from kairon

3

or nylon. Brushes 11 are installed to clean the threads from dust. When installing a larger number of drum bowls, it is advisable to arrange them in a checkerboard pattern.

The filter works as follows.

The vibrator 6 is turned on, the grains of the layer 4 of granules of dissimilar dielectrics are subjected to mechanical oscillations and rub together, as a result of which electrostatic charges of opposite polarities are obtained. Dust-laden gas is filtered through a granular layer of oppositely charged granules and is cleared of acne. The captured material is removed from the layer by dielectric filaments 10, discharged on the metal drum 8 and cleaned with brushes 11 into the hopper 9. The diameter of the filaments 10 is chosen to be much smaller than the grain size so that the filter material is not carried into the hopper along with the dust. Gov

the rotation of the drums is opposed to what contributes to the loosening of the layer.

Claims (2)

1. A filter for cleaning gas from dust, comprising a housing with a granular layer of granules of dissimilar dielectrics, a vibrator mounted on the housing, and a hopper for collecting the collected dust, characterized in that in order to increase productivity, the filter is equipped with dielectric and metal rotating drums with dielectric threads pulled on them, the dielectric drum being placed in salt grain and the metal drum above the bunker. 2. A filter according to Claim 1, characterized in that the dielectric filaments located adjacent are made of dissimilar materials. Bb