Rotary ash eliminator of circular pipe electro-precipitator

Abstract

The invention discloses a rotary ash eliminator of circular pipe electro-precipitator, which belongs to the technical field of electro-precipitator, and aims at providing a rotary ash eliminator of circular pipe electro-precipitator with good ash eliminating effect and long service life. The rotary ash eliminator of circular pipe electro-precipitator is technically characterized by including an external anode cylinder (1) the bottom of which is provided with an air inlet and the top end of which is provided with an air outlet, at least one cylindrical cathode wire framework (2) hung in the external anode cylinder and at least one inner internal anode cylinder (3); a vertical motor (4) is arranged in the center above the top end of the external anode cylinder; the output shaft of the vertical motor is connected with a main shaft (7) through a coupling (5); the main shaft is vertically hung in the external anode cylinder through a bearing (6) fixed in the middle of the top plate of the external anode cylinder; the main shaft hung in the external anode cylinder is connected with a swing mechanism consisting of an upper triple sleeve and a lower triple sleeve; an upper swinging arm and a lower swimming arm, as well as a sweeping rod; and one surface of the sweeping rod (10) closed to the inner anode cylinder and the external anode cylinder is embedded with a high-temperature resistant flexible brush (101).

Description

technical field [0001] The invention relates to a rotary dust cleaning device for an electric dust collector, in particular to a rotary dust cleaning device for a circular tube electric dust collector. Background technique [0002] At present, the dust cleaning method of the round tube electrostatic precipitator is the mechanical rapping type. Because the mechanical rapping is a rigid collision, it is very harmful to the equipment and seriously affects the service life of the electrostatic precipitator. Due to the excessive proportion of dust returning to the gas due to rapping (that is, secondary dust), the dust concentration at the outlet of the electrostatic precipitator exceeds the standard. Simultaneously, the vibration and noise produced by mechanical rapping are relatively large, which is also a kind of environmental pollution. Especially for dusty gas with high specific resistance, if the rapping frequency is increased in order to prevent the dust thickness from exc...

AI Technical Summary

Problems solved by technology

[0002] At present, the dust cleaning method of the round tube electrostatic precipitator is the mechanical rapping type. Because the mechanical rapping is a rigid collision, it is very harmful to the equipment and seriously affects the service life of the electrostatic precipitator.

Due to rapping, the proportion of dust returning to the gas (that is, secondary dust) is too large, and the dust concentration at the outlet of the electrostatic precipitator exceeds the standard

At the same time, the vibration and noise generated by mechanical rapping are relatively large, which is also a kind of environmental pollution.

Especially for dusty gas with high specific resistance, if the rapping frequency is increased in order to prevent the dust thickness from exceeding the back corona thickness, more secondary dust is easily generated due to frequent rapping, and the dust concentration in the outlet gas of the electrostatic precipitator Exceeding the standard, if the rapping cycle is prolonged, the thickness of the dust attached to the anode cylinder exceeds the thickness of the back corona, and the back corona phenomenon will occur. Therefore, the mechanical rapping method cannot make the dust concentration of the outlet gas of the circular tube electrostatic precipitator meet the emission requirements. standard

In addition, due to long-term rigid collision, the service life of the vibrator is short and the failure rate is high

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