Injecting, bubbling ,dust settling, desulfurating and absorbing tower with vertical screen deck

Abstract

The invention discloses a vertical sieve plate jet bubbling desulfurization and dust removal absorption tower, which comprises a cylindrical tower wall, an outer cylinder and an inner cylinder with open ends at both ends, the outer cylinder and the inner cylinder are arranged at the lower section inside the tower wall and Arranged coaxially with the tower wall, an annular gas channel is formed between the outer cylinder and the inner cylinder. There is a suspended space between the bottom of the outer cylinder and the inner cylinder and the tower wall, and a circle of grid-shaped gas injection holes is opened at the lower end along the circumferential direction. The outer cylinder And the top of the inner cylinder is provided with a sealing plate, which is fixedly connected to the inner wall of the tower wall through reinforcing ribs. The lower end of the sealing plate is equipped with a first spiral nozzle group. The tower wall has a flue gas inlet under the sealing plate, and the flue gas The inlet is provided with a nozzle, the upper section inside the tower wall is provided with a second spiral nozzle group, and the top of the tower wall is provided with a clean flue gas outlet. The vertical sieve plate jet bubbling desulfurization and dust removal absorption tower utilizes the tangential circulation air intake method and the cyclone wetted wall principle, which can cool the flue gas and remove dust through industrial wastewater.

Description

technical field [0001] The invention relates to a wet-type flue gas desulfurization and dust removal device, in particular to a vertical sieve plate spraying bubbling desulfurization and dust removal absorption tower applied to the flue gas treatment of small and medium-sized boilers and the tail gas treatment of the metallurgical industry. Background technique [0002] At present, more than 85% of the world's desulfurization technologies use wet desulfurization, of which the United States, Japan, and Germany account for more than 90%. The implementation of wet desulfurization generally uses various types of tower equipment. The temperature of the flue gas coming out of the boiler is high, and it must be cooled before entering the tower, otherwise it will have a great impact on the subsequent absorption efficiency. The method of the exchanger cools the flue gas, but for small and medium-sized boilers, this method is too expensive and unfeasible. Therefore, adopting a simple...

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Problems solved by technology

The implementation of wet desulfurization generally uses various types of tower equipment. The temperature of the flue gas coming out of the boiler is high, and it must be cooled before entering the tower, otherwise it will have a great impact on the subsequent absorption efficiency. The flue gas is cooled by the exchanger method, but for small and medium-sized boilers, this method is too expensive and unfeasible

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