Airflow distribution device for electrostatic-bag precipitator

Abstract

The invention relates to an airflow distribution device for an electrostatic-bag precipitator. The airflow distribution device comprises a shell, a first distribution plate, a second distribution plate and a third distribution plate, wherein the first distribution plate, the second distribution plate and the third distribution plate are sequentially arranged in a shell of a reducer pipe from exterior to interior; an angle of 90 degrees is formed between an upper panel of the first and second distribution plates and an upper panel of the shell; an angle of 90 degrees is formed between a lower panel of the first and second distribution plates and a lower panel of the shell; the third distribution plate is spherical; the aperture ratios of airflow holes in the first, second and third distribution plates are respectively 40%, 60% and 80%; and shapes of the airflow holes in the first, second and third distribution plates are respectively pentagram, four-angle star and three-pointed star. According to the device disclosed by the invention, the flow velocity of inlet airflow in the reducer pipe is adjusted, so that the airflow is uniformly diffused and distributed, the purification efficiency is improved, and the equipment failure rate is reduced.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to an airflow distribution device of an electric bag dust collector. Background technique [0002] At present, the most widely used equipment for purification and recovery of smoke and dust emitted by iron and steel, cement, chemical industry, electric power and other enterprises is the electric bag dust collector. Generally, the high-speed dust-laden flue gas is introduced into the electric bag filter from the flue, and it transitions to the working room through the variable-diameter tubes with different calibers at both ends. Because the ratio of the diameter area of ​​the two ports of the variable-diameter tube is 5-9 times, the tube length It is only 3m, and the opening angle is as high as 60-70°. If the necessary measures are not taken in the reducing pipe, it will cause uneven air distribution and reduce the purification efficiency of the electric bag composite dust colle...

AI Technical Summary

Problems solved by technology

However, in actual use, especially when the central inlet pipe is very irregular, the effect of flow equalization is very bad, resulting in local cathode and anode not collecting dust in the electrostatic precipitator area, and in the bag filter area due to local flow velocity too fast, the filter bag high breakage rate

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