Desulfurization tower with automatic slag removal

Abstract

The invention provides a desulfurizing tower with a self-skimming function, which has the improvement that a shell at a gas inlet forms a volute structure capable of being distributed along the circumferential direction of the shell, and a gas inlet pipe is communicated with the volute structure, so that gas output by the gas inlet pipe enters the shell along the direction tangential to the circumferential direction of the shell; the shell below a gas inlet section forms a funnel-shaped liquid storage section, and a blow-down valve is arranged on the lower end of the liquid storage section; the blow-down valve is communicated with a liquid storage pool, and a pumping device is arranged between the liquid storage pool and a sprinkling device; adsorption liquid cyclically flows between the liquid storage pool and a desulfurizing tower, and the liquid level of the adsorption liquid is always in an elevation range of the volute structure; and the gas output by the gas inlet pipe drives the adsorption liquid to rotate along the circumferential direction of the shell while contacting with the adsorption liquid, and impurities are gathered to the middle part of the shell under the action of rotating centripetal force and are discharged by the blow-down valve. The desulfurizing tower has the beneficial effects that the desulfurizing tower has the self-skimming function, solid impurities are prevented from being deposited in the desulfurizing tower, the maintenance times are reduced, the operation cost is reduced, and the structure is simple.

Description

technical field [0001] The invention relates to a tail gas treatment device, in particular to a desulfurization tower capable of automatic slag removal. Background technique [0002] During the kiln combustion process, due to the sulfide contained in the raw materials, the exhaust gas after calcination contains a large amount of gaseous harmful substances, dust and flue gas, and the sulfur, dust and flue gas in the exhaust gas need to be removed through a desulfurization tower; [0003] The existing desulfurization towers mainly have the following problems during operation: the solid impurities extracted from the exhaust gas will be deposited on the inner wall of the desulfurization tower, and the inner wall of the desulfurization tower needs to be cleaned and deslagged regularly, resulting in a decrease in the operating efficiency of the desulfurization tower, and During the cleaning process, the anti-corrosion layer on the inner wall of the desulfurization towe...

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Problems solved by technology

[0003] The existing desulfurization towers mainly have the following problems during operation: the solid impurities extracted from the exhaust gas will be deposited on the inner wall of the desulfurization tower, and the inner wall of the desulfurization tower needs to be cleaned and deslagged regularly, resulting in a decrease in the operating efficiency of the desulfurization tower, and During the cleaning process, the anti-corrosion layer on the inner wall of the desulfurization tower will be worn, requiring frequent maintenance, which increases the operating cost of the desulfurization tower

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