A high-efficiency composite dust collector

Abstract

The invention provides an efficient combined dust collector. The dust collector comprises an electrostatic dust collection part, a bag filtration part and a dielectrophoresis filtration part, wherein an air outlet of the dielectrophoresis filtration part is connected with exhaust passages; the dielectrophoresis filtration part is formed by DEP purification treatment units; the DEP purification treatment units comprise DEP purification electrode plates; the DEP purification electrode plates can be curled, so that the sides are shaped like helixes; the DEP purification electrode plates comprise DEP electrodes; the DEP electrodes comprise anodes and cathodes, which are oppositely arranged; the DEP electrodes capture particulate matters, which are discharged by the bag filtration part, in gases via dielectrophoresis forces. The dust collector has the beneficial effects that large-particle dust in the inlet gases is filtered via the electrostatic dust collection part and the bag filtration part, and small particles, especially the respirable dust can be filtered via the dielectrophoresis filtration part, thus achieving all-round removal of dust particles in the full range; the dielectrophoresis filtration part filters the dust by adopting the dielectrophoresis principle, so that the dust collector is low in energy consumption, pressure loss and operating cost.

Description

technical field [0001] The invention relates to the technical field of material purification treatment, in particular to a high-efficiency composite dust collector using dielectrophoresis dust removal technology. Background technique [0002] PM2.5 is particles smaller than 2.5 microns, also known as particles that can enter the lungs, which can enter the alveoli and even the blood system of the human body, directly causing cardiovascular diseases and other diseases. PM2.5 has a large specific surface area and is usually enriched with various heavy metal elements, such as As, Se, Pb, Cr, etc., as well as organic pollutants such as PAHs, PCDD / Fs, VOCs, etc. These are mostly carcinogens and genotoxic mutagenesis Material hazards are extremely high. Known health effects of PM2.5 include increased mortality in patients with severe and chronic diseases. It can worsen diseases of respiratory system and heart system, change lung function and structure, and change immune structure...

AI Technical Summary

Problems solved by technology

However, bag dust removal also has its disadvantages, such as a large pressure drop (generally 1500-2000Pa), resulting in large system resistance, which requires a higher power of the induced draft fan of the system, which increases the operating energy consumption; in addition, due to the concentration of dust to be processed Generally, it is relatively high, and the working load is heavy, resulting in limited life of the filter bag (paste bag, burning bag, leakage bag and corrosion wear will affect the service life of the filter bag), and the filter bag must be replaced frequently and regularly, which increases the cost of operation and maintenance. workload, and increased operation and maintenance costs

In addition, the bag filter has poor dust removal effect on the particles that can enter the lungs (with a particle diameter of 2.5um and below). Hidden dangers for the health and safety of the public

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