Wet electrostatic precipitator, desulfurization system as well as desulfurization and dust removal process

Abstract

The invention discloses a wet electrostatic precipitator, a desulfurization system as well as a desulfurization and dust removal process. The desulfurization and dust removal process at least comprises the step of electrostatic precipitation in a transverse flow process of flue gas flow. The desulfurization system at least comprises one wet electrostatic precipitator. The wet electrostatic precipitator comprises a cylindrical dust removal box which is horizontally arranged and provided with an air inlet and an air outlet, air flow distribution plates are arranged in the dust removal box and close to the air inlet, a mist removal device is arranged in the dust removal box and close to the air outlet, and a dust removal device is arranged in the dust removal box and between the air flow distribution plates and the mist removal device. Electric conductors adopt tubular structures instead of the original sheet structures, the dust particle adsorbing areas of the electric conductors are increased in a use process, further, the intervals between rows of electric conduction tubes can distribute air flow very well, and air flow passes smoothly.

Description

technical field [0001] The invention relates to a wet electric dust removal device, a desulfurization system and a desulfurization and dust removal process. Background technique [0002] Most of the dust removal systems currently on the market are vertical dust removal devices installed in the desulfurization tower. This system has some defects during use: [0003] (1) A large amount of flushing water and recovered slurry during the use of the existing dust collector will be damaged by the spray layer when it falls into the desulfurization tower, which will directly affect the desulfurization reaction in the desulfurization tower, resulting in insufficient reaction between flue gas and desulfurizer , at the same time, the flue gas will escape at the damaged place, resulting in a decrease in desulfurization efficiency; [0004] (2) During the use of the dust collector in the tower, the falling slurry will affect the lower flushing system until the lower flushing system fails...

AI Technical Summary

Problems solved by technology

[0003] (1) A large amount of flushing water and recovered slurry during the use of the existing dust collector will be damaged by the spray layer when it falls into the desulfurization tower, which will directly affect the desulfurization reaction in the desulfurization tower, resulting in insufficient reaction between flue gas and desulfurizer , at the same time, the flue gas will escape at the damaged place, resulting in a decrease in desulfurization efficiency;

[0004] (2) During the use of the dust collector in the tower, the falling slurry will affect the lower flushing system until the lower flushing system fails. After the lower flushing system fails, the dust collector will be fouled and blocked, affecting the normal passage of the air flow, causing System resistance increases, even affecting normal production;

[0005] (3) After the dust collector in the tower is blocked or damaged, it is very inconvenient to repair and replace;

[0006] (4) If the dust collector in the tower fails, in addition to reducing the desulfurization efficiency, the damaged parts will fall into the desulfurization tower and affect the normal operation of the system. In severe cases, it will cause damage to the circulating pump and the post-processing system;

[0007] (5) During the installation of the dust collector in the tower, materials can only be entered and exited in the manhole, which is inconvenient and dangerous to install;

[0008] (6) The dust collector in the tower is generally designed with two stages or more, which occupies a large space (accounting for about 1 / 5 of the desulfurization tower body), which will increase the steel consumption of the desulfurization system

[0009] (7) When the flue gas passes through the existing dust collector, the dust removal effect will be reduced due to uneven distribution

Images