Sloping plate unit in entrance of flue gas-desulfurizing absorption tower

Abstract

The invention relates to an incline plate at the inlet section of smoke desulfuration adsorption tower, which comprises: a smoke channel connected to the tower, while the smoke channel is formed by the outer section and the inner section. Wherein, the outer section is formed by a outer top plate, a outer side plate and a outer bottom plate; and the inner section is formed by a inner top plate, a inner side plate and a inner bottom plate; the inner and outer sections are incline downward from outer to inner which are connected with the hole edge of tower wall; the outer surfaces of the connection of outer top plate, outer side plate and outer bottom plate are incline profile and extend 1 / 2 of the tower wall to be welded; the connections of inner top plate, inner side plate and inner bottom plate extend 1 / 2 of tower wall to be welded; the joints of inner and outer sections are welded; a incline plate is welded between the end of inner top plate and the above inner wall of adsorption tower. The invention can effectively avoid the limestone slurry that sprayed from up to down to through the spray layer entering into the smoke at the inlet of adsorption tower, to reduce the erosion on the smoke channel, improve the distribution of smoke, improve the flow of flow field and improve the desulfuration efficiency of adsorption tower.

Description

(1) Technical field [0001] The invention relates to a connection structure between a flue gas desulfurization absorption tower and a flue. (two), background technology [0002] Power plants and industrial boilers usually use fossil fuels such as coal and oil. Since these fossil fuels generally contain sulfur, harmful substances such as sulfur dioxide will be produced during the combustion process. In order to remove sulfur dioxide in boiler flue gas, limestone-gypsum wet flue gas desulfurization devices are widely used in large power plant boilers. Since the design of desulfurization devices in thermal power plants in my country is basically based on the sulfur content of the designed coal, most power plants in my country have unstable coal sources, unstable coal quality, and large unit load changes. At the same time, with my country's increasingly strict restrictions on the sulfur content of urban coal combustion, the traditional limestone-gypsum wet flue gas desulfurizatio...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a slant plate device at the entrance section of the flue gas desulfurization absorption tower, which solves the problem that the limestone slurry is easily poured into the flue at the entrance of the absorption tower, which makes the flue easily corroded; and solves the problem of improving the absorption tower. Uneven distribution of flue gas flow field, technical problems that need to further improve the desulfurization efficiency of traditional absorption towers and further reduce energy consumption

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