Flue gas desulfurization and dust removal equipment and dust removal method

Abstract

The invention belongs to the technical field of dust removal equipment, and particularly relates to flue gas desulfurization dust removal equipment and a dust removal method. The dust removal equipment comprises a box body, a dust removal module, a screw rod and a controller; an air inlet is formed in one end of the box body, an air outlet is formed in the other end, and a discharge port is formed in the lower end of the box body; through the arrangement of a push rod, the push rod slides on the surface of a filter frame, the filter frame moves relative to the push rod under the action of sliding friction force, the push rod can push the filter frame to rotate, on one hand, the filter bag can rotate in a reciprocating mode, and dust on the surface of the filter bag is thrown to fall off; on the other hand, the side, facing the air inlet, of the filter bag is changed, dust accumulated on the side, facing the air inlet, of the filter bag is reduced, the impact effect of gas in a gas storage tank on the dust on the side, facing the air inlet, of the filter bag is reduced, the dust residue on the side, facing the air inlet, of the filter bag is reduced, and the filtering effect of the filter bag is improved; and the dust removal effect of the dust removal equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of dust removal equipment, and in particular relates to flue gas desulfurization and dust removal equipment and a dust removal method. Background technique [0002] my country is a country with coal as the main energy source. Most of the coal is used through combustion, so that the emissions of dust and sulfur dioxide produced by combustion are huge, especially the smoke contained in the flue gas produced by coal-fired power generation. The high proportion of dust and sulfur dioxide has caused the pollution of dust and sulfur dioxide in my country to become more and more serious. Therefore, flue gas desulfurization has become an urgent and main task in our country. [0003] For example, a Chinese patent with the application number CN201921685559.7 discloses a bag filter for desulfurization and denitrification device, by setting an airflow pipe in the inner cavity of the clean air chamber, and passing the top ...

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Problems solved by technology

[0003] For example, a Chinese patent with the application number CN201921685559.7 discloses a bag filter for desulfurization and denitrification device, by setting an airflow pipe in the inner cavity of the clean air chamber, and passing the top of the airflow pipe through the side wall of the clean air chamber and Fixedly connect an electromagnetic pulse valve, so that when the electromagnetic pulse valve receives the dust removal signal, it will generate a reverse airflow to blow to the dust bag. The uniform reverse airflow blows the large particles of dust attached to the dust removal bag into the dust collection bin, and then the dust in the dust collection bin is discharged to the outside of the device through the dust discharge device, which increases the dust removal effect of the equipment; but the technical solution It has not been completely solved because the position of the filter bag after installation is fixed, so that when the dusty air enters from a certain fixed air inlet, the side of the filter bag facing the air inlet will quickly accumulate dust in a short period of time, causing the filter bag to face One side of the air inlet is blocked by dust, which weakens the filtering effect of the filter bag, and when the air in the air storage tank passes through the inside of the filter bag and impacts outward, the side of the filter bag facing the air inlet is compared with the side facing away from the air inlet. One side is severely blocked by dust, so that most of the gas in the air storage tank rushes out from the position where the filter bag is facing away from the air inlet, so that the side of the air storage tank facing the air inlet of the filter bag is less impacted by the gas, resulting in the filter bag The amount of residual dust on the side facing the air inlet continues to increase, which makes the filtration rate of the filter bag continuously weakened, which reduces the dust removal efficiency of the dust removal equipment, which in turn causes the limitations of this technical solution

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