Single-circulation double-turbulence double-spray ultra-clean desulphurization dedusting tower

Abstract

The invention provides a single-circulation double-turbulence double-spray ultra-clean desulphurization dedusting tower, and belongs to the technical field of boiler flue gas purifying. The lower side wall, the top part, and the bottom part of a tower body of the single-circulation double-turbulence double-spray ultra-clean desulphurization dedusting tower are provided with a flue gas inlet, a flue gas outlet, and a thick liquid outlet; the tower bottom is provided with a thick liquid discharge pump connected with the thick liquid outlet; a liquid storage zone is arranged at the internal bottom part of the tower body; an aeration oxygen-increasing device and a disturbance tube are arranged in the liquid storage zone; the disturbance tube is communicated with the liquid storage zone via a thick liquid disturbance pump so as to form a circulation loop; a flue gas inlet gas flue is provided with jet device which is connected with the liquid storage zone via a pipeline provided with a jet pump; a first rotational flow device, a first spray zone, a second rotational flow device, a second spray zone, and a multi-layer demister are arranged in the tower body above the flue gas inlet gas flue from bottom to top; spray pipes of different layers in the first spray zone and the second spray zone are connected with corresponding circulating pumps respectively; and the circulating pumps are communicated with the liquid storage zone respectively. The single-circulation double-turbulence double-spray ultra-clean desulphurization dedusting tower is small in occupied land area, is capable of reducing cost, and is high in efficiency.

Description

technical field [0001] The invention belongs to the technical field of boiler flue gas purification, in particular to a super-clean desulfurization and dedusting tower with single circulation, double turbulence and double spraying. Background technique [0002] The main equipment of the wet desulfurization system is the absorption tower. Various forms of towers have been used in various technological processes at home and abroad, from the early water bath tower to the spray tower, the grid tower and the recent multi-purpose spray tower. is to improve the SO in the tower 2 and liquid mass transfer absorption process. Among them, the technical content of desulfurization and dust removal in the cyclone tower is higher than that of the empty tower. The basic working principle of the cyclone desulfurization and dust removal tower is that after the flue gas discharged from the boiler enters from the bottom of the cyclone, it rotates up with the cyclone, and at the same time, the...

AI Technical Summary

Problems solved by technology

Although the twin towers have high desulfurization and dust removal efficiency, they occupy a large area, consume a lot of steel, have a lot of equipment, and have a large one-time investment.

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