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 less secondary dust generated by vibration, but also it requires more light plate, but also a certain rigidity, when the dust is easy to fall the rapping and without distortion. corona wire is characterized by a support tube the auxiliary discharge prick out, straight edge burr is sandwiched between two semi-circular tube support plate. The new folder thorn prick tubular wire, the current density even when corona discharge, corona current form large, medium and small different levels do not drop a class of tubular side prick prick lines, so that ESP is reliable, dust, high efficiency, low energy consumption, suitable for electrostatic precipitator. Corona wire has high mechanical strength, easy to break, cleaning convenient, low cost, very simple manufacture, etc., suitable for use or for older electrostatic precipitator transformation in the new Electrostatic Precipitator. Corona line from the use of thin steel plate bent and punched out on both sides of the steel sheet and prick corona wire vertical.