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Electrostatic Dust Collector
The working principle of the electrostatic dust collector is to use the high
voltage electric field to ionize the flue gas. The dust charge in the air flow is
separated from the air flow under the action of the electric field. The negative
electrode is made of metal wires with different cross-sectional shapes and is
called a discharge electrode.
The positive electrode is made of metal plates of different geometries and is
called a collecting electrode. The performance of an electrostatic precipitator is
affected by three factors, the nature of the dust, the configuration of the
equipment, and the flow rate of the flue gas. The specific resistance of dust is
an index for evaluating conductivity, and it has a direct effect on the dust
removal efficiency. The specific resistance is too low, dust particles are
difficult to maintain on the dust collecting electrode, causing it to return to
the air flow. The specific resistance is too high, and the dust particles that
reach the dust collection electrode are not easily released. A voltage gradient
between the dust layers can cause partial breakdown and discharge. These
conditions will result in a drop in dust removal efficiency. The basic principle
of electrostatic precipitators is to use electric power to trap dust from the
fumes, which mainly includes the following four interrelated physical processes:
(1) The ionization of gas.
(2) The charge of dust.
(3) Charged dust moves to the electrode.
(4) Charged dust collection.
Minimum Order: 1 sets
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SOURCE: Import-Export Bulletin Board (http://www.imexbb.com/)
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