High-efficiency desulfurization apparatus for boiler waste gas

Abstract

The invention discloses high-efficiency desulfurization apparatus for a boiler waste gas. The apparatus comprises an outer shell; the inner wall of the bottom of the outer shell is sequentially provided with a liquid storage box and an object storage box; the apparatus further comprises a physical absorption device placed on the inner wall of the top, a dry desulfurization device placed on the other side of an absorption box, a wet desulfurization device placed on the other side of a dry desulfurization box, and a filter device placed at the bottom of a wet desulfurization box; and the physical absorption device is composed of the absorption box and a first air inlet pipe, the dry desulfurization device is composed of the dry desulfurization box and activated carbon absorption plates, thewet desulfurization device is composed of the wet desulfurization box and a second air inlet pipe, and the filter device is composed of a filter box and a filter plate. According to the apparatus disclosed by the invention, the absorption box is arranged, so that solubility of hydrogen sulfide in water or methanol is conveniently utilized, and the water or methanol introduced into the absorption box can physically absorb a part of sulfur-containing substances in the waste gas; and a transparent pipe and a floating rod are arranged, a buoyancy effect is utilized, so that a liquid level height in the absorption box and the wet desulfurization box can be known without opening the outer shell.

Description

technical field [0001] The invention relates to the technical field of gas desulfurization, in particular to a high-efficiency desulfurization device for boiler waste gas. Background technique [0002] When the boiler exhaust gas is discharged, it often causes damage to the environment due to the sulfur-containing gas contained in the exhaust gas. The sulfur-containing gas in the exhaust gas is mainly hydrogen sulfide, in addition to carbon disulfide, carbon dioxide sulfur and mercaptan. These sulfur-containing compounds are always When the amount reaches a constant value, it is necessary to use a desulfurization device to remove sulfur-containing compounds in the gas. [0003] At present, the existing desulfurization devices usually use pickling, and the acid solution used is usually expensive, and the desulfurization effect is poor, the efficiency is low, and the removal of sulfur compounds in the exhaust gas is not complete, resulting in the exhaust gas still affecting th...

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Problems solved by technology

[0004] In order to solve the defects of high cost and incomplete desulfurization of desulfurization devices in the prior art, the present invention provides a high-efficiency desulfurization device for boiler exhaust gas

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