| CPC B03C 3/88 (2013.01) [B65G 11/026 (2013.01)] | 10 Claims |
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7. An electrostatic precipitation method comprising:
a step (S10) of supplying an exhaust gas of high temperature of 300° C. or more to an electrostatic precipitator, and separating dusts from the exhaust gas, thereby generating clean gas;
a step (S20) of transferring the dusts separated in the step (S10) to a main hopper by gravity;
a step (S30) of transferring the dusts transferred to the main hopper in the step (S20) to a plurality of sub-hoppers by gravity;
a step (S40) of transferring the dusts transferred to each of the sub-hoppers in the step (S30) to a vertical duct by gravity; and
a step (S50) of introducing by gravity, into a water tank, the dusts transferred to each of the vertical ducts in the step (S40),
wherein each of the plurality of sub-hoppers has an angle of repose that securely receives all of the dusts descended from the main hopper without leaking outside of each of the sub-hoppers and at the same time, allows the received dusts to smoothly descend along inner walls of each of the sub-hoppers without accumulating on the inner walls by gravity alone, and
wherein the steps (S20) to (S40) are configured to allow the dusts separated in the step (S10) to fall to the water tank by gravity without being hindered by a dust fall-hindering member.
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