Superfine particulate matter purifying device

Abstract

A superfine particulate matter purifying device comprises a gas discharge-electrocoagulation device and a static enhance bag type dedusting integrated device. The gas discharge-electrocoagulation device comprises an air flow inlet (1), a corona wire (2), a gas discharge tube (3), an air flow outlet divergent pipe (5), a direct current power supply (6) and a grounding electrode (7), and the static enhance bag type dedusting integrated device comprises an air inlet (8), a magnetic valve (9), an air pocket (10), a pulse valve (11), a jetting pipe (12), a filtering bag (13), a jetting hole (14), a dust skeleton (15), a dust hopper (16), a spiral dust discharge valve (17), wires (19) and ground wires (20). The air flow inlet is arranged at one end of the gas discharge tube, the other end of the gas discharge tube is connected with the air flow outlet divergent pipe, the dust skeleton is formed by distributing the wires and the ground wires in a vertical direction at intervals, and the superfine particulate matter purifying device is suitable for smoke dust removing and particularly superfine dust purifying devices for particulate matter (PM) below 2.5.

Description

technical field [0001] The invention relates to a purification device for ultrafine particles, which belongs to the technical field of air pollution control. Background technique [0002] Studies have shown that heavy metals in industrial or power industry flue gas are present in ultrafine particulate matter (including PM 10 and PM 2.5 ) surface concentration trend, and the dioxin-like organic matter produced in the waste incineration process also showed the same characteristics. In view of the great harm of ultrafine particles to human health and the lack of emission control standards for ultrafine particles in my country, how to effectively remove and control ultrafine particles in the atmosphere has become a new hot issue. [0003] At present, the widely used dust removal devices are mainly electrostatic precipitators and bag filter. The electrostatic precipitator uses an electric field to ionize the dust-containing gas to charge the dust particles. Under the action of...

AI Technical Summary

Problems solved by technology

However, the dust removal efficiency is easily affected by dust with high specific resistance

The bag dust collector is a device that separates and collects dust by passing the dust-laden airflow through the filter material. It uses filter paper or glass fiber as a filter material for the filter material. Although the bag filter overcomes the dust removal efficiency of the electric dust collector, it is easily affected by the dust source And it has the advantages of corrosion resistance, long-term use of filter material, high dust removal efficiency, etc., but its running resistance is large, so it is not suitable for use at high temperature

[0004] The existing technology has improved the efficiency of the electrostatic precipitator to an extreme point. It is difficult to charge ultra-fine dust, and it is difficult to further improve the efficiency of the electrostatic precipitator; the bag filter has a large running resistance, and the filter bag is easily damaged. In the case of aggressive gas, the requirements for filter bags are high

These deficiencies have reduced the development and use of these two types of dust collectors

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