Horizontal electrostatic precipitator

Abstract

The invention discloses a horizontal electrostatic precipitator. The horizontal electrostatic precipitator comprises a tapered air inlet barrel, a tapered air outlet barrel, a dust collector, a wall attachment effect breaking mechanism and an air dividing mechanism, wherein the wall attachment effect breaking mechanism is fixedly arranged at an inlet end in the tapered air inlet barrel, the air dividing mechanism is fixedly arranged at an outlet end of the tapered air inlet barrel, the air dividing mechanism comprises an air evening cone body and an air dividing plate, and the air dividing plate is fixedly arranged at a large-diameter end of the air evening cone body; the dust collector comprises a cathode row and an anode plate, wherein the cathode row and the anode plate are fixedly arranged inside a housing at intervals, the cathode row comprises a frame, a metal mesh plate and a plurality of burr lines, the plurality of burr lines are evenly fixed inside the frame, and the every two adjoining burr lines are connected with each other by the metal mesh plate. The precipitator can achieve the purposes that the surface area of smoke which passes through a corona field can be enlarged, and the smoke can pass through the corona field with even flow speed, and the aim of improving the dust collecting effect can be achieved as an electric filed between the cathode row and the anode plate is evenly distributed.

Description

technical field [0001] The invention relates to a flue gas dedusting device, in particular to a horizontal high-voltage electrostatic precipitator. Background technique [0002] The electrostatic precipitator is formed on two metal anodes and cathodes with large curvature radii, through high-voltage direct current, to form a corona field sufficient to ionize the gas and an electric field to absorb electrons. The electrons, anions and cations generated after gas ionization are adsorbed on the dust passing through the corona field to make the dust obtain electric charge. Under the action of the electric field, the charged dust moves to the electrode of opposite polarity and deposits on the electrode to achieve the purpose of separating the gas and dust, and then the dust falls into the lower ash hopper with the help of the vibration device, and the purified gas is discharged from the chimney. discharge. [0003] For example, Chinese Patent No. "200520032511.8" discloses a hi...

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Problems solved by technology

However, because the shunt hood is a hollow structure, its air outlet corresponds to the inner dust collection chamber, and the air outlet is located in the inner dust collection chamber, which makes the amount of flue gas entering the inner dust collection chamber much larger than that entering the outer dust collection chamber. The amount of flue gas in the dust chamber leads to poor homogenization of the flue gas

Moreover, this patent is mainly applicable to concentric garden and concentric circular fan electrostatic precipitators, and cannot be directly applied to horizontal high-voltage electrostatic precipitators

[0006] Secondly, if figure 1 As shown, in the cathode row, the combined structure of the metal round tube and the steel needle is the prickly wire 91, and the same-sex repulsion between the metal round tube and the steel needle makes the gap between the anode row 10 and the prickly wire 91 The effective electric field formed can only be the fan-shaped electric field 14 of the prickly wire 91 to the anode row 10 (opposite the point)

There will be an electric field vacuum between two fan-shaped electric fields. When the charged dust passes through the electric field, only the fan-shaped electric field between the electric fields acts on the dust. The dust is not affected by the electric field in the vacuum electric field section, and the fine dust is easy to pass through under the action of airflow The electric field is directly discharged into the atmosphere; at the same time, when the flue gas flow rate is fast, that is, when the force of the flue gas on larger particles is greater than the adsorption force of larger particle dust in the fan-shaped electric field, the larger particles are easy to enter the atmosphere with the flue gas , which not only leads to poor dust collection effect of flue gas, but also easily pollutes the environment

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