removes dust. It is suitable for removing the dust of 0.01-50μm in the flue gas, and can be used in the occasions of high flue gas temperature and pressure.
Compared with other dust removal equipment, the electrostatic precipitator consumes less energy and removes dust. It is suitable for removing the dust of 0.01-50μm in the flue gas, and can be used in the occasions of high flue gas temperature and pressure. Practice has shown that the greater the amount of flue gas processed, the more economical the investment and operating costs of using electrostatic precipitators.
The working principle of the electrostatic precipitator is to use the high-voltage electric field A to ionize the flue gas, and the dust in the airflow is separated from the airflow under the action of the electric field. The negative electrode is made of metal wires with different cross-sectional shapes, called discharge electrodes. The positive electrode is made of metal plates with different geometric shapes, called dust collecting electrodes. The performance of the electrostatic precipitator is affected by three factors: the nature of the dust, the structure 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 impact on the efficiency of dust removal. If the specific resistance is too low, it is difficult for dust particles to remain on the dust collecting electrode, causing them to return to the airflow. If the specific resistance is too high, the charge of the dust particles reaching the dust collecting electrode will not be easily released, and the formation of a voltage gradient between the dust layers will cause local breakdown and discharge. These conditions will cause the reduction of dust removal efficiency.