Static deduster and step-by-step rapping deashing method thereof

Abstract

The invention which discloses a static deduster and a step-by-step rapping deashing method thereof belongs to the technical field of static dedusting. The static deduster of the invention comprises a casing, two ends of the casing are provided with an air inlet and an air outlet respectively, at least one electric field comprising a cathode wire and an anode plate which cooperate with each other is arranged in the casing, and at least two cathode wire rapping deashing devices and at least two anode plate rapping deashing devices are arranged in each electric field. According to the step-by-step rapping deashing method of the static deduster of the invention, all the cathode wire rapping deashing devices and all the anode plate rapping deashing devices run in different periods of time. According to the invention, the total amount of re-entrainment generated during rapping deashing is reduced, and the concentration of dust on the outlet of the static deduster is reduced.

Description

technical field [0001] The invention belongs to the technical field of electrostatic dust removal, and in particular relates to an electrostatic dust collector and a step-by-step vibration cleaning method thereof. Background technique [0002] The existing electrostatic precipitator includes a casing, the two ends of the casing are respectively provided with an air inlet and an exhaust port, and several electric fields composed of cathode wires and anode plates are arranged in the casing, and vibration cleaning is arranged in the electric field. The device; the gas passes through the cathode line and the anode plate in parallel, and a negative high-voltage direct current is applied to the cathode line to make the ionized gas generate negative ions. It falls off from the surface of the electrode, so as to achieve the purpose of cleaning the dust of the dust collector. [0003] However, because the existing electrostatic precipitator is generally equipped with a cathode line...

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Problems solved by technology

[0003] However, because the existing electrostatic precipitator is generally equipped with a cathode line rapping and cleaning device and an anode plate rapping and cleaning device in each electric field, a rapping and cleaning device completes the cleaning of all anode plates or cathode lines in an electric field. Vibration and dust removal work lead to a large amount of secondary dust generated in the electric field. At the same time, in the actual operation process, the dust removal and vibration plan of the electrostatic precipitator is not set accurately, and the anode plate and cathode line of each electric field vibrate at the same time. Dust cleaning, as well as simultaneous dust removal between different electric fields, make the total amount of secondary dust generated during vibrating dust removal very large, and the dust concentration at the outlet of the electrostatic precipitator increases

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