SU1391688A1 - Apparatus for cleaning gases from dust - Google Patents

Abstract

The invention relates to the purification of gases from dust and can be used in various industries, such as energy, metallurgy, chemical, and allows you to increase the service life of the filter material. In the proposed device, due to the creation on the surface of the fabric of an easily removable dust layer with high gas permeability, an increase in the filtration period and a decrease in the effect on the tissue during regeneration, i.e. increases the service life of the filter material. For this, the device is supplied with an additional tangential discharge pipe connected to the cylindrical part of the cylinder-conic chamber, communicated with the filter inlet and equipped with a shut-off valve, the control unit of which is interlocked with the filter regeneration control unit. 1 il. 6 (L

Description

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The invention relates to the purification of gases from the Pip and can be used in various fields of industry, for example, energy, metallurgy, and chromium.

The purpose of the invention is to increase the service life of the filter material.

The drawing schematically shows the proposed device.

The device contains a cyclone 1 with an exhaust pipe 2, a vortex dust coagulator made in the form of a cylindrical chamber 3 placed coaxially on the exhaust pipe 2 of the cyclone 1 with an axial lower opening attached to the exhaust pipe 2 and the axial upper outlet nozzles 4 buried in the cylindrical part of the chamber 3 and connected-gm with inlet 5 of the bag filter 6, tangential outlet pipe 7, connected to the cylindrical part of chamber 3, communicate the end of the end with the inlet 5 of filter 6 i; equipped with an otseklyur valve 8 with execute. The mechanism is mechanism 9, valve control unit 10, reduced with performance of mechanism 9 and assembly with evil 1 1 of the control of mechanisms 12 of regeneration pYKaBHoi o filter l fS.

The pl (gas cleaning unit) device works with the following:

rFonBepraef-ft in cleaning the gas flow comes from the AND (.: Psihe formation point to the cyclone 1, in which the partial pickup of the pipp occurs. In the cyclopone lobe tube, there is an intensive rotational movement of gases, with the axial velocities of the gas, concentrations and mass flow rates dust has a pronounced maximum at the periphery of the exhaust pipe, which makes it possible to use for coagulation a cyclone-unsustained dust vortex coagulator, into the cylindrical chamber 3 of which a gas stream flows after the cyclone 1. At the periphery of the cylinder The roonic chamber 3, especially in its cylindrical part between the cap and the cut of the outlet nozzle 4, creates an area of increased dust concentration, ten times exceeding the concentration of dust in the gas being cleaned, which contributes to the intensive coagulation of dust in the specified area.

From the outlet nozzle 4 of the vortex coagulant, the gas enters the inlet

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5 bag filter 6. At the end (in a certain section) of the filtration period, the control unit 11 includes

the regeneration mechanism 12 and the filter sleeves are cleaned. After the regeneration time has elapsed, the control unit 11 shuts off the regeneration mechanism 12 and simultaneously, through the control unit 10 and the actuator 9, opens the shut-off valve 8. At this point, a piezo-gas concentrate containing coagulated dust from the periphery of the chamber 3 is discharged

the pipeline 7 and the flue duct are fed to the inlet 5 of the bag filter 6. The necessary pause between the moments of opening and closing of the valve 8 is set in advance and is determined by the time required to transport the dust-gas concentrate through the pipeline 7 to the inlet 5 of the bag filter 6 regeneration, the volume of gases filtered through a clean cloth is sharply increased, moreover, coagulated at the periphery of the vortex coagulant (cylindrical part of chamber 3) of dust. Due to this fact, practically iTiLHU filtering front layer is formed on the surface of the fabric. Since the nest is precoagulated, it does not penetrate deep into the pores of the fabric, forms a thick, gas permeable and easily removable layer on the surface of the fabric. An increase in the filtration period is facilitated not only by E1 from the factor, but also by a 40–60: 7 decrease in the impurity of the gas entering the filter compared to the dust content of the gases leaving 191 This is because after the peripheral (cylindrical) part of chamber 3 is freed from dust and gas concentrate, after valve 8 is closed, saturation or loading of volume of chamber 3 between the lid and cut off outlet nozzle 4 continues. the next regeneration (more precisely, until its completion and opening of valve 8), or during a long period of regeneration until reaching the limiting load (it has the flow capacity at the periphery of chamber 3, after which the number of and suspended in the periphery

the chamber does not occur and the capillary flows, leaving the cyclone and entering the filter becomes the same.

Thus, in the proposed device, an increase in the service life of the filter material is achieved by increasing the duration of the filtration period and reducing the effect on the tissue during regeneration due to the formation of an easily removable dust layer with high gas permeability on the surface of the spinner.

Claims (1)

Invention Formula A device for gas purification (HYPI, containing a cyclone, installed on the Hbrfi on its exhaust pipe, 20 nihren coagulant dust, made in a nida five Q five 0 fixed on the cyclone exhaust pipe of a cylindrical chamber-pi) i with an axial hole connected to the cyclo-exhaust pipe and an axial upper outlet pipe embedded in the chamber connected to the coagulum outlet pipe of a fine filter, in order to increase the duration of the filtering material, it is equipped with a pipeline, one end of which is tangentially connected to the cylindrical part of the coagulant chamber and the other end to the filter inlet having a generation mechanism P1 with unitary unit control, and a shut off valve in this pipeline with a control unit interlocked with the control unit of the filter regeneration mechanism. Y