Flue gas desulfurization ultra-low emission absorption tower and flue gas desulfurization ultra-low emission technology

Abstract

The invention discloses a flue gas desulfurization ultra-low emission absorption tower and a flue gas desulfurization ultra-low emission technology. A cross section of a lower straight section of thedesulfurization tower is divided into three identical parts to form an absorption section 1, an absorption section 2 and an absorption section 3; the tops of cross sections of the absorption section 1and the absorption section 2 are enclosed; the top of the absorption section 3 is opened; an angle of each part is 120 DEG; a barrel straight section is divided by partitions with equal height in a longitudinal direction; notches in different sizes are formed in the partitions according to respective functions; and the absorption section 1, the absorption section 2 and the absorption section 3 are provided with venturi nozzles. According to the tower, the absorption section 1, the absorption section 2 and the absorption section 3 are formed, and the mass transfer efficiency is improved. An efficient washing section is added; efficient mass transfer filling is arranged below the washing section, so that a content of SO2 in discharged flue gas is less than 35mg / Nm<3>; and a smoke content ofless than 10mg / Nm<3>. The tower and the technology solve the problems of high investment cost, high operating cost and high maintenance cost of wet electric precipitation, and solve feasible practical problems for small and medium-sized enterprises.

Description

technical field [0001] The present invention is applicable to SO in the flue gas discharged from combustion boilers of small and medium-sized enterprises 2 At (1000~4000)mg / Nm 3 Ultra-low emission (SO 2 Less than 35mg / Nm 3 , soot less than 10mg / Nm 3 ) governance field; specifically, it will involve a flue gas desulfurization ultra-low emission absorption tower and a flue gas desulfurization ultra-low emission process. Background technique [0002] At present, the situation of air pollution is severe, and acid gas (SO 2 , NOx) and inhalable particulate matter (PM10), fine particulate matter (PM2. In order to improve the quality of the atmospheric environment, the state and local governments have issued some mandatory governance policies. There are many ways to remove SO2 from flue gas to ultra-low or ultra-clean. All environmental protection companies and enterprises proceed from their own actual conditions, give full play to their respective advantages, and start the ...

AI Technical Summary

Problems solved by technology

[0006] This patent gets rid of the high investment cost, high operation cost and high maintenance cost of wet electrostatic precipitator, solves these three high problems, and solves practical problems for small and medium-sized enterprises, thus inventing an advanced high-efficiency transmission High-quality flue gas desulfurization ultra-low emission process equipment and a new absorption tower with advanced multi-functional combination

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