Smoke desulfurization tower with smashing device

Abstract

The invention discloses a smoke desulfurization tower with a smashing device, which comprises a tower body, wherein the lower part of the tower body is provided with a sulfur waste outlet, a dust-poking mouth and a smoke inlet; the central part of the tower body is provided with a returning dust inlet, a desulfurizer inlet and a nozzle interface; the upper end of the tower body is provided with a smoke outlet; an exit necking section of the desulfurization tower is arranged between the sulfur waste outlet and the smoke inlet; 4 to 20 discrete air distributors are uniformly arranged on the internal slope of the necking section; each air distributor is provided with an air outlet inclined upwards; a smashing device is also arranged in the tower body and on the upper ends of the air distributors. As the air distributors are arranged on the necking section, and the smashing device is arranged on the upper ends of the distributors, the falling dust in the tower is blown by the air distributors to mix with the smoke again after being smashed by the smashing device. The air distributors not only can blow the dust, but also improve smooth distribution in the tower through the action of air flow and enhance the desulfurization efficiency.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, in particular to a desulfurization tower for flue gas treatment. Background technique [0002] Harmful gases such as sulfur dioxide and nitrogen oxides in the flue gas produced when coal, oil, and gas are burned are discharged into the atmosphere, causing acid rain, destroying the ecological environment, and affecting human health. In response to the more stringent control standards proposed by my country's relevant environmental protection regulations on the allowable emission concentrations of sulfur dioxide and nitrogen oxides in flue gas, various flue gas desulfurization technologies, methods and devices have emerged as the times require. [0003] Coal-fired SO2 control methods can be divided into three categories: desulfurization before combustion, desulfurization during combustion, and desulfurization after combustion (flue gas desulfurization), among which flue gas desulfurizati...

AI Technical Summary

Problems solved by technology

The existing defects in the design of adding a flapper valve at the bottom of the desulfurization tower include: increased oxygen content in the boiler; poor flow field stability and asymmetric flow distribution.

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