Corona line (Prick line) also called cathode line corona wire electrode discharge capacity is good or bad and the corona discharge really a tip of the pole (both curvature), and when the corona discharge extremely sharp dust will be extracted when it curvature on smaller, so the effect of discharging it has a great impact. corona electrode has a good variety of patterns, the more pointed the corona discharge, the better the effect, but the more discharge sharp corners, making and install a more difficult problem. corona wire poles are generally connected to a high voltage, the need for good insulation means spacing between the corona wires to the appropriate spacing influence far corona current too close, corona wires Inter may have screen * phenomenon, resulting in reduced corona wire surface electric field strength. upper and lower pole of the dust collecting dust pole is fixed, and the collecting electrode is grounded. General requirements for dust settling on the plates is easy, in After playing a secondary dust generated less vibration, but also requires more light plate, but also a certain rigidity, when the dust is easy to fall the rapping and without distortion. prick line belongs to the discharge point, mechanics high strength, not broken and deformed. Since the tip discharge, enhancing the board near the line of electric wind, prick point easy to dust, dust, high efficiency, high dust concentrations suitable for the occasion, in a large electrostatic precipitator, often in the first and second electric field use . Thorns prick electrode junction sometimes small ball, so easy cleaning. Commonly used columnar prick line, flat prick line, tubular prick lines, zigzag lines, angle steel prick lines, wavy lines and prick fish bone lines. Tubular prick line, also known as RS line, general and 480C or 385Z-shaped plate-shaped plate is equipped with, is more commonly used corona electrode. Early tubular prick line is composed of two semi-circular tubes and welded prick. Not easy to fall off due to prick spot welding, if the burr and half-pipe made out of a steel plate, as a whole front line like prick, prick will not fall off, but tests have shown that the tube opposite the collecting plate at a current density of zero. Now press out the spikes of tubular pipe prick line solve the problem of uneven corona current.