Integrated wet flue gas desulphurization and dust removal device and method

Abstract

The invention provides an integrated wet flue gas desulphurization and dust removal device and method. The integrated wet flue gas desulphurization and dust removal device is formed by combining an alkaline desulphurization device on the upper portion and a tubular electrostatic precipitation device on the lower portion, and comprises a cylinder. A flue gas inlet channel is formed in one side of the bottom of the cylinder, a buffer pond is arranged in the bottom space of the cylinder, a gas uniform distribution plate is arranged above the flue gas inlet channel, an electrostatic precipitation area is arranged above the gas uniform distribution plate, upper spray pipes and a lower spray pipe are connected with an outlet of a booster pump through pipelines, an inlet of the booster pump is connected with the bottom of a neutralization pond, an alkali liquor addition pipeline is arranged at the top of the neutralization pond, the top of the neutralization pond is connected with an outlet pipeline of a booster pump b, an inlet pipeline of the booster pump b is connected with the middle of a sedimentation pond, the bottom of the sedimentation pond is connected with a waste liquor outlet through a pipeline, the top of the sedimentation pond is connected with an outlet of a booster pump a, and an inlet pipeline of the booster pump a is connected with the bottom of the buffer pond. The device and method mainly solve the problems that the efficiency of desulphurization and dust removal of tail flue gas of industrial boilers is low, energy consumption is high, and the utilization rate of waste water is low.

Description

Technical field: [0001] The invention relates to the field of air pollution control, in particular to an integrated wet flue gas desulfurization and dust removal device and method. Background technique: [0002] In recent years, with the occurrence of smog, more and more people have paid attention to air quality and air pollutant emissions, especially boiler flue gas pollutant emissions; power plant boiler flue gas treatment started earlier, in In the country's strict implementation of standards, flue gas treatment and transformation have been carried out in a large area, but the flue gas pollution of industrial boilers is not optimistic. At present, the emission of flue gas pollutants from industrial boilers has exceeded that of power station boilers, becoming the first in the national industrial industry. Large pollution sources, in-depth treatment of industrial boiler flue gas pollution has become inevitable; [0003] The "Boiler Air Pollutant Emission Standard (GB13271-...

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Problems solved by technology

[0006] The patent of the present invention provides an integrated wet flue gas desulfurization and dust removal device and method, which mainly solves the problems of low efficiency of flue gas desulfurization and dust removal at the tail of industrial boilers, high energy consumption, and low utilization rate of waste water.

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