Rigid anode plate surface water film arrangement technology and device

Abstract

The invention relates to a solid anode plate surface water film arrangement technology and device for an electrostatic dust collector. The device comprises clamp plate fastening bolts, suspension clamp plates, water distribution pipes, guide vanes, anode plate fastening bolts, anode plates, lower plate part positioning steel plates, lower plate part fixing shafts, and positioning steel plate fastening bolts. The surfaces of the anode plates are subjected to pretreatment of coating by a hydrophilization agent, and the upper parts of the anode plates are connected with the water distributed pipes through suspension clamps and are twisted to form the 45-degree guide vanes; corrugated guide trenches with widths of 5mm-8mm are formed in the front ends of the anode plates; stainless steel pipes are crossed and welded to form a gridding water distribution pipe net, water distribution holes are formed in the lower ends of the water distribution pipes and are connected with an external process water tank, and the quantity of water intake is controlled by a PLC (programmable logic controller); the vertical anode plates with the same width form an electrostatic field channel; upper and lower crossbeams of discharge electrodes are suspended by upper and lower insulating boxes respectively and are insulated from a casing; and ash hoppers are arranged below the anode plates. According to the invention, particulate matters settled on the surfaces of the anode plates can be cleaned away thoroughly in a water-film ash cleaning manner, and thus the smoke emission can reach the standard.

Description

1. Technical field [0001] The invention belongs to the field of air pollutant control, and in particular relates to a surface water film forming process and device based on a rigid anode plate of an electrostatic precipitator. 2. Background technology [0002] At present, 95% of coal-fired power plants use electrostatic precipitators, mainly including dry electrostatic precipitators and wet electrostatic precipitators. As we all know, dry electrostatic precipitators have very limited ability to remove ultrafine particles. After electrostatic precipitators, a large amount of fine particle fly ash still enters the environment, causing pollution and affecting human health. The main factors affecting the operation efficiency of the dust collector are the properties of flue gas, operating conditions, and equipment status. Among them, for traditional rigid anode plate materials, the "secondary carryover" caused by the traditional mechanical vibration cleaning method is the cause o...

AI Technical Summary

Problems solved by technology

However, the current wet electrostatic precipitators generally use solid anode plates. Under the same flushing water conditions, due to the deviation of the machining flatness of the rigid material itself and the effect of surface tension, the water film is easy to form channels on the surface of the anode plate. In the cleaning process, there are still: the waste of water resources caused by the large amount of water used to rinse the surface thoroughly, the uneven water film on the surface of the anode plate, and the residual dust forming "dry spots" that cause "spark discharge" failures, and the shutdown and flushing operation defects adopted by most equipment And other issues

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