Cathode system for electric demisting device with conductive fiberglass reinforced plastic

Abstract

The cathode system of conductive glass steel electric defroster can be used in the device for removing acid mist in the process that purifying the mercurial smoke in acid industry, belonging to the electric defroster area. The invention is formed by a cathode support beam, a cathode wire, a weight, and a lower cathode frame; wherein, the upper end of cathode wire is hanged on the cathode support beam, which is characterized in that the weight that connecting the lower end of cathode wire is formed by a sealed plastic outer cylinder and a inner lead weight; the lower cathode frame is formed by main beam and branch beam that made from plastic or glass steel; the branch beam has a hole adjusting plate; the weight outer cylinder is through the hole of said adjusting plate. In said system, lead weight inside the weight and the cathode wire are separated to effectively avoid the electric chemical erosion between them, and prolong the service life of cathode wire; the lower cathode frame has simple structure, high strength, and its hole adjusting plate make the position and distance adjustment of cathode wire easy; each cathode wire can be independently adjusted according to the shape of anode tube, with controllable size accuracy, lower weight, and easy installment; the electric field inside the conductive glass steel electric defroster is stable, with long service life, high defrosting efficiency and the acid mist outlet is not more than 3mg/NM3.

Description

technical field [0001] The invention relates to a cathode system in an acid mist removal device used in the mercury-containing smelting flue gas purification process of an acid production project, and belongs to the field of electric mist eliminators. technical background [0002] The conductive FRP electrostatic precipitator is usually composed of an upper shell, a dust pole chamber, a middle shell, a lower shell, a cathode system, a spray device, an air inlet and an outlet pipe, etc. Among them, the cathode system is composed of a cathode load beam, a cathode wire, a heavy The hammer and the lower cathode frame are composed. The upper end of the cathode wire is hung on the cathode load beam. The lower cathode frame is a plastic scissors board placed on a plane, and there are corresponding small holes on it. The disadvantages are: 1) The function of the plastic scissors board is to keep the distance between the cathode wire and the anode tube, to separate the cathode wires ...

AI Technical Summary

Problems solved by technology

[0002] The conductive FRP electrostatic precipitator is usually composed of an upper shell, a dust pole chamber, a middle shell, a lower shell, a cathode system, a spray device, an air inlet and an outlet pipe, etc. Among them, the cathode system is composed of a cathode load beam, a cathode wire, a heavy The hammer and the lower cathode frame are composed. The upper end of the cathode wire is hung on the cathode load beam. The lower cathode frame is a plastic scissors board placed on a plane, and there are corresponding small holes on it. The disadvantages are: 1) The function of the plastic scissors board is to keep the distance between the cathode wire and the anode tube, to separate the cathode wires and the weight so as not to cause a short circuit. If one fulcrum shakes, the whole will shake, and the electric field operation of the equipment will be unstable. In addition, because the cathode wires are positioned with small holes, the distance between the cathode wires is not easy to adjust, which increases the size error and affects the adjustment of the equipment; 2) hanging cathodes The heavy hammer used for the wire can straighten the cathode wire and keep the distance between the cathode wire. It is a conical plumb weight with a small hole for threading in the middle of the plumb weight. When the material of the cathode wire is different from that of the weight, it can cause electrochemical corrosion , the cathode line is easy to break, and the upper mouth of the conical plumb bob is flat, which is easy to deposit mercury, which will cause harm to the human body when personnel enter the equipment for maintenance

Images