Inclined plate desulfurization synergistic device suitable for wet desulfurization

Abstract

The invention relates to an inclined plate desulfurization synergistic device suitable for wet desulfurization. The inclined plate desulfurization synergistic device includes a plurality of synergistic layers, several synergistic device units are arranged and spliced to form a horizontal layer plane of the synergistic layer, each synergistic device unit consists of a cylinder with a rectangular section and inclined plates welded in the cylinder cavity, the inclined plates are inverted V-shaped, the inverted V-shaped end faces of the inclined plates are vertically welded to two opposite inner walls of the cylinder, several inclined plates are arranged at intervals uniformly side by side in a row so as to form an inclined plate layer, and several inclined plate layers in staggered arrangement vertically are disposed in the cylinder. The synergistic device provided by the invention uses inclined plates to replace pipes or sieve plates, and has wide operational flexibility, no matter too big or too small flue gas amount, as long as slurry falls from the upper part of the desulfurization tower, a liquid film always exists below the inclined plates, the liquid film is uniform and in good contact with flue gas, the desulfurization and dust removal effects are stable, and the system has the advantages of simple structure and easy maintenance.

Description

technical field [0001] The invention relates to an inclined plate desulfurization multiplier suitable for wet desulfurization. Background technique [0002] SO in flue gas emitted from coal combustion process 2 It has caused harm to the environment, and the flue gas must be desulfurized to control emissions. The limestone-gypsum method is currently the most stable, mature, and widely used wet flue gas desulfurization process. At present, the flue gas discharged from the coal combustion process has been treated in China, and it has reached the "Emission Standard of Air Pollutants for Thermal Power" (GB13223 -2003) requirements. With the continuous improvement of the country's environmental protection requirements, the GB13223-2003 standard has been replaced by GB13223-2011, and the emission indicators of pollutants are more stringent, among which SO 2 The emission standard is changed from 200mg / m 3 Increased to 50mg / m 3 , the total dust emission requirement is 50mg / m 3 ...

AI Technical Summary

Problems solved by technology

The total investment in the whole implementation process is large, the operating cost is high, and the oxidation rate of the double-circulation high-PH value slurry is low. It flows through many areas such as AFT towers, pumps, pipelines, liquid collection rings, liquid collection funnels, and spray pipes, resulting in There is a lot of scaling on the inner wall of the equipment, which needs to be shut down regularly for treatment

[0005] The existing multiplier forms mainly include sieve-plate multiplier and tube-type multiplier, both of which have certain shortcomings. If it is too small, the sieve plate is likely to have too much liquid holding capacity or no liquid holding, resulting in excessive flue gas resistance, or reducing the desulfurization effect

Although the tubular multiplier can solve the problem of insufficient flexibility in the operation of the device, the tubular structure will cause the absorption liquid to flow round along the tube wall, without forming a space liquid film, and poor contact with the flue gas, which will affect the desulfurization and dust removal effects

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