Synergistic spray charging and electrostatic dust collecting method and device
A charging device and electrostatic precipitator technology, which is applied in the field of electrostatic precipitator method and device for water mist charging and efficiency enhancement, can solve the problems of economic loss, large emission of soot concentration, and decrease in removal efficiency, so as to promote the growth of agglomeration and investment Low cost, enhanced viscous effect
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[0025] Example 1: Such as figure 1 As shown, the water mist charging device 1 is installed on the flue in front of the entrance of the electrostatic precipitator 6. The flue gas discharged from the boiler first passes through the water mist charging device 1, and the droplets atomized by the two-fluid atomizing nozzle 2 pass The corona ring 3 powered by the high-voltage power supply 5 quickly induces charging and sprays charged droplets containing agglomerating agent into the flue gas; the charged droplets are in full contact with the flue gas: on the one hand, the charged droplets can The flue gas is humidified, cooled and tempered, wherein the relative humidity is between 50%-80% and the temperature is between 70-80℃; on the other hand, the charged droplets containing agglomerating agent collide with dust particles to form a After the wet particles, the viscosity and Coulomb force between the particles are enhanced, and the dust particles in the flue gas are promoted to grow u...
Example Embodiment
[0030] Embodiment 2: The difference from Embodiment 1 is that the water mist charging device 1 is installed in the divergent section 8 of the entrance of the electrostatic precipitator, and the rest is the same, and will not be repeated.
Example Embodiment
[0031] Example 3: As shown in Figure 3, the electrostatic precipitator has a four-level electric field. Remove the penultimate electric field in the electrostatic precipitator, and install the water mist charging device at the position of the electric field; the flue gas discharged from the boiler first After the first and second electric fields of the electrostatic precipitator 6, remove large dust particles in the flue gas;
[0032] The remaining fine dust particles pass through the water mist charging device 1 installed in the third-level electric field, and the water mist charging device 1 sprays charged droplets containing agglomerating agent into the flue gas, and the charged droplets fully contact the flue gas : On the one hand, the charged liquid droplets can humidify, cool down and adjust the flue gas, wherein the relative humidity is between 50%-80% and the temperature is between 70-80℃; on the other hand, those containing agglomerating agents After the charged droplets...
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