SU631184A1 - Filter for purifying gas from dust - Google Patents

Description

one

The invention relates to purification devices, for example, for the supply of gas streams (air, nitrogen, etc.) to the heat power industry, in the fuel systems of aircraft, mining, metallurgical and other industries that require cleaning of industrial emissions into the atmosphere. .

A filter is known that includes a perforated partition with a movable layer of a granular filtering material with a specific ratio of 2400-9000 kg / m, devices for loading and unloading of filtering material, vibrators, vibrating screens and dust collecting bins l1, placed on it.

This filter has insufficient dust collection efficiency and high energy consumption.

The purpose of the invention is to increase the efficiency of dust accumulated and energy consumption.

This goal is achieved by the fact that the filter is equipped with an additional moving layer of filter material with a specific weight of 1100 - 2400 kg / m, mainly granulated silica gel, placed under the perforated partition, and devices for loading and unloading additional filter material located under the unloading and loading devices the main filter material.

FIG. 1 shows the proposed filter, a longitudinal section; in fig. 2 - the same, top view; in fig. 3 - section A-A of FIG. 2

The filter includes a housing 1, inside which a partition wall 2 is inclined; the housing contains devices for loading 3 and unloading 4 the main filtering material 5 and for loading 6 and unloading 7 an additional movable layer of filter media.

0 1 of the serial 8. On the outside of the housing 1 filter, a duct 9 is installed for regenerating the main filter material and a duct 10 for regenerating the additional rolling

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| SLO filter material, inside of which are located vibrating screen 11, nozzles 12, bunkers for collecting pic 13 and. wash water 14. For adjusting the height of the layers of filter material, gates 15-18 are installed. The filter works as follows. Char89 bunkers of loading the main and additional filtering materials (not shown in the drawing) are loading

granular filter media, for example, in the form of granular gravel and granulated silica gel, - A dusty stream of gas is allowed through the air duct to be cleaned. The main film. The rubbing material from the loading device under its own weight moves down along the perforated partition 2 and then, after the unloading device 4, enters the regeneration into the duct 9, where, after cleaning, is fed back into the loading hopper.

Additional filter material 8 from box 10 for regeneration of additional filter material from loading device 6 enters under perforated partition 2, presses gas to it and flows under the action of aerodynamic force upward along perforated partition 2, then injected into load box 7 for regge- non-aggregation of additional filtering material, where under the action of its own weight moves down the vibrating screen 11,

The collected dust is collected in the hopper 13.

Before leaving the box 10 for the regeneration of additional filter material for a more efficient trap

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The dusting of the granular filter material is irrigated with water using nozzles 12, Water is collected in the hopper 14, and the additional filter material 8 is fed through the loading device 6 again into the perforated partition. The dusty gas stream, through the two layers of granular filter material, moving in np-opposite directions, is cleaned from dust and removed to the exhaust system.

Claims (1)

1. USSR author's certificate No. ZOO202, cl. O1 D 46/32, ar O9D2,69. N. /(9 / - Jl 4f BUT ten .2 // / J uz.J