Desulfurization reaction tower capable of absorbing chemicals

Abstract

The invention relates to the technical field of flue gas desulfurization equipment, in particular to a desulfurization reaction tower capable of internally absorbing chemicals. Thedesulfurization reaction tower comprises a desulfurization tower for carrying out flue gas desulfurization reaction and a storage bin for providing catalytic materials into the desulfurization tower, the desulfurizationtower comprises an upper tower section, a lower tower section and a material absorbing section which are of an integrated structure, the material absorbing section is in a hollow cylinder shape with the inner diameter sequentially increased from the middle section to the two ends, an upper section and a lower section of the material absorbing section are both in a horn shape, a material absorbingopening is formed in the tower wall of the upper section of the material absorbing section, and a material absorbing opening is communicated with a material bin through a material absorbing pipe; in aflue gas treatment process, flue gas passes a retraction portion of the material absorbing section, negative pressure is generated on the inner wall of the upper section of the material absorbing section due to increase of the flue gas flow rate, and the negative pressure has an adsorption effect on the material absorbing pipe with the pipe orifice located at the position, so that a catalytic material in the material bin is automatically added into the desulfurization tower; and the material absorbing pipe is provided with a flow valve and the flow valve is in control connection with a flue gas detector at a flue gas inlet of the desulfurization tower so as to realize automatic adjustment of catalytic material feeding.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization equipment, in particular to a desulfurization reaction tower for systemically absorbing chemicals. Background technique [0002] The desulfurization tower is a tower equipment for desulfurization treatment of industrial waste gas, which uses the principle of dry desulfurization and dust removal. The sulfur-containing flue gas enters the desulfurization tower from the bottom of the desulfurization tower and is discharged from the top of the desulfurization tower. Calcium hydroxide powder is added in the desulfurization tower as a catalytic material, and the calcium hydroxide powder and sulfur dioxide and other sulfides in the sulfur-containing flue gas reaction to remove the sulfur in the flue gas and reduce the sulfur content in the exhausted flue gas. The existing desulfurization tower will install corresponding equipment on the desulfurization tower when adding catalytic materia...

AI Technical Summary

Problems solved by technology

The sulfur-containing flue gas enters the desulfurization tower from the bottom of the desulfurization tower and is discharged from the top of the desulfurization tower. Calcium hydroxide powder is added in the desulfurization tower as a catalytic material, and the calcium hydroxide powder and sulfur dioxide and other sulfides in the sulfur-containing flue gas reaction to remove the sulfur in the flue gas and reduce the sulfur content in the exhausted flue gas. The existing desulfurization tower will install corresponding equipment on the desulfurization tower when adding catalytic materials to the desulfurization tower, which will not only cause a cost increase The improvement also increases the burden on the desulfurization tower. During the transformation process, the desulfurization effect of the desulfurization tower may be affected due to damage to the desulfurization tower. In addition, the newly added equipment needs to be regularly maintained and overhauled due to its long-term proximity to the flue gas.

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