Dusty flue gas conveying reversing pipeline and dry desulfurization system

Abstract

The invention relates to a dusty flue gas conveying reversing pipeline and a dry desulfurization system. The dusty flue gas conveying reversing pipeline comprises a front side flue and a rear side flue; smoke flows into the rear side flue from the front side flue to achieve reversing of the flow direction, a flow guide piece is arranged on the inner wall of the outer side of the front side flue and / or the inner wall of the outer side of the rear side flue and provided with a flow guide face, and the flow guide face extends from the inner wall of the outer side of the flue to the middle of theflue in the flow direction of the dusty smoke to guide the middle of the flue. Under the guidance of the flow guide part, dust-containing flue gas flows along a path close to the inner side of the pipeline, and the flow speed of the flue gas close to the middle of the flue is higher than that of the flue gas at the inner wall of the outer side of the flue, so that dust in the flue gas can be takenaway by the flue gas, and the dust in the flue gas is prevented from being accumulated at the corner of the flue or the downstream of the corner.

Description

technical field [0001] The invention relates to a reversing pipeline for conveying dusty flue gas and a dry desulfurization system. Background technique [0002] Industrial production often involves the pipeline transportation of dust-containing flue gas. For example, when using dry method for flue gas desulfurization, sulfur-containing flue gas will be passed into the reaction tower, and at the same time, desulfurization ash and desulfurization ash will also be passed into the reaction tower. Fully contact with the sulfur-containing flue gas in the reaction tower to remove the sulfur contained in the flue gas, and then the flue gas engulfs the desulfurization ash to form a high-concentration dust-containing flue gas, which flows out of the reaction tower and is transported downstream along the corresponding pipeline. [0003] The problem in actual production is: in order to change the direction of high-concentration dust-laden flue gas, the flue gas conveying pipeline of th...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a reversing pipeline for conveying dust-laden flue gas to solve the problem of dust accumulation in the turning or downstream of the turning when the reversing pipeline for conveying dust-laden fume in the prior art is used to transport dust-laden flue gas However, the technical problems that affect the normal transportation of dusty flue gas

The purpose of the present invention is also to provide a dry desulfurization system to solve the technical problem that the dry desulfurization system in the prior art cannot operate stably due to the accumulation of dust in the turning point of the dusty flue gas transmission reversing pipeline

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