Multi-microgravity louver baffling composite electric dust precipitator

Abstract

The invention provides a multi-microgravity louver baffling composite electric dust precipitator, which comprises a square shell. Two ends of the shell are provided with an air inlet and an air outlet. Multi-rows of dust collecting poles are arranged in the shell, and the dust collecting poles comprise a dust collecting frame and transparent dust collecting plates. The dust collecting plates are axially and uniformly arranged in the dust collecting frame, and airflow channels are formed between the adjacent two dust collecting poles and between the outer dust collecting pole and the inner wallof the shell at the corresponding side. A baffle plate is respectively disposed at an inlet end of each odd-numbered airflow channel and an outlet end of each even-numbered airflow channel, and corona electrodes are uniformly arranged axially in each airflow channel. The corona electrode is composed of a pole and a pole pin fixed on the pole. The dust collecting plate is a continuous W-shaped structure, and is composed of a plurality of blades connected and fixed by locating pins. The blades are equally spaced. The inclination angle of the blade is 95-105 degrees; the distance between two adjacent blades is 25-35 mm; and the blade width is 45-55 mm. Through the technical scheme provided by the invention, reentrainment of dust can be greatly suppressed, and a better dust removal effect isachieved.

Description

technical field [0001] The invention relates to the field of environmental protection and dust removal technology, in particular to an improved multi-element microgravity louver baffled composite electric precipitator that meets the environmental protection requirements of national smoke and dust discharge standards. Background technique [0002] Since 1908, American Kreiter published his first patent on electrostatic precipitator and used it in Selbay smelter to successfully recover sulfuric acid mist which is difficult to handle. So far, it has a history of more than 100 years. It is already a fairly mature industry. For dust with high ash content and high specific resistance, etc., which are difficult to collect, an electrostatic precipitator with multiple electric fields and large specific dust collection area is usually selected. Theoretically speaking, the dust removal efficiency of the electrostatic precipitator is very high. It can be seen from the Andrew-Dovich equ...

AI Technical Summary

Problems solved by technology

But the reality is not so, usually the total dust removal efficiency of the three electric fields is less than 99.9%, which fully shows that the dust removal efficiency of the second and third electric fields cannot reach 90%.

But we often increase the power supply voltage and increase the electric field strength in the second and third electric fields, so why is the efficiency of dust removal in the latter electric field lower? The analysis found that the possible reason for this phenomenon is that after the dust reaches the second and third electric fields, the large particles are almost cleaned up, leaving only fine dust

In this way, there is a problem: the adsorption force produced by the fine dust is small (although we have increased the electric field strength, the capture distance has also increased, and the increase in the adsorption force is not obvious enough), and the dust directly flows to the exhaust outlet under the action of the wind and is discharged. The dust we understand is captured after being charged and moving towards the anode

Images