Multi-medium flue gas purifying reaction tower

Abstract

The invention relates to a flue gas purification device, in particular to a multimedia flue gas purification reaction tower, which provides a multimedia flue gas purification reaction tower that can purify the flue gas in an efficient and recycling way and has wet process reaction and dry processed products. The device comprises an air inlet and an air outlet which are arranged on a sealed reaction tower body; an ash bucket is arranged at the bottom of the reaction tower body; a plurality of guide boards are obliquely superposed with equal distance from top to down and are vertically arranged to form guide board walls; the guide boards of the two guide board walls are symmetrically arranged like a V shape to form a reaction chamber; the reaction chamber is filled with fillings slowly flowing from top to down; a plurality of rows of reaction chambers are evenly arranged; the guide board wall is provided with at least a layer of a plurality of spray headers, which has the advantages of high efficiency in wet desulphurization and desulphurization. The device is characterized by small area occupation, low investment and operation cost and needing no dehydration and drying treatment for the byproducts. As the spraying system inside the tower is accurately controlled, the byproducts only contain water no more than 5 percent, which reaches the delivery requirements, while the wet process reaction and the dry processed products lead the reaction tower to have the dual advantages of high efficiency and energy saving.

Description

technical field [0001] The invention relates to a flue gas purification device, in particular to a multi-media flue gas purification reaction tower. Background technique [0002] my country's air pollution is dominated by soot, and the primary pollutant is sulfur dioxide. my country's annual emission of sulfur dioxide is more than 20 million tons, ranking first in the world. The sulfuric acid type acid rain pollution damage area mainly caused by sulfur dioxide discharge reaches 40% of the national land area, and the whole country loses hundreds of billions of yuan every year, and the latest data shows that it reaches 500 billion yuan. Sulfur dioxide pollution has become an important factor restricting the sustainable development of my country's economy and society, and it is imperative to control sulfur dioxide pollution. The industrial application of sulfur dioxide flue gas desulfurization technology is still in its infancy. The desulfurization of large and medium-sized b...

AI Technical Summary

Problems solved by technology

Although the wet desulfurization efficiency is high, there are many problems: 1. High infrastructure operation cost

Wet desulfurization technology is complex and requires a lot of equipment, and most of the current domestic wet desulfurization technologies are imported from abroad, so the infrastructure and operating costs are relatively high

2. Large area

The complexity of the process of the wet process determines that the required site area is large, which hinders its installation

3. Poor equipment stability

Because the absorbent is in the form of slurry, it is easy to block the nozzle, and the nozzle needs to be dredged or replaced frequently, and the maintenance cost is high

4. It is greatly affected by the weather

The desulfurization efficiency and the utilization rate of the absorbent are not high, so it cannot be applied to the desulfurization of large-scale power plants and steel plants

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