System and method for removing foam of desulfurization slurry tank by ultrasonic waves

Abstract

The invention provides a system and method for removing foam of a desulfurization slurry tank by ultrasonic waves, aiming at effectively removing the foam generated by desulfurization slurry under the condition that the composition of the desulfurization slurry is not influenced. The system comprises a desulfurization tower in a wet-process desulfurization system, a plurality of ultrasonic generators arranged on a side wall of the desulfurization tower and an ultrasonic controller for controlling the ultrasonic generators; transmitting terminals of the ultrasonic generators are aligned to the foam of the slurry tank; and control terminals of the ultrasonic generators are connected with an output terminal of the ultrasonic controller. According to the method provided by the invention, the foam on a liquid level of the slurry tank in the wet-process desulfurization system is vibrated and compressed by adopting ultrasonic waves, so that the foams are broken and the removal of the foam is realized. The large-power ultrasonic generators are additionally arranged on the side wall of the desulfurization tower in the wet-process desulfurization system so that high-power and high-energy sound waves are generated; the foam can be vibrated and is subjected to a great sound pressure action; the sound waves are used for rapidly vibrating and compressing the foam so that the foam is broken; and finally, the aims of removing the foam and improving the desulfurization efficiency are realized.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a system and method for ultrasonically eliminating foam in a desulfurization slurry pool. Background technique [0002] Wet desulfurization systems are widely used in thermal power plants in my country. With the continuous improvement of my country's atmospheric emission standards, it is inevitable that the flue gas desulfurization system will be canceled and integrated into the main engine operation system. The stable operation of the flue gas desulfurization system is particularly important. Therefore, it is necessary to Delicate management of the desulfurization system. During the desulfurization reaction process, the slurry in the absorption tower foams, causing a large amount of foam on the surface of the slurry, and the liquid level detector will find that a false liquid level is generated, resulting in slurry overflow, which is a common problem in the opera...

AI Technical Summary

Problems solved by technology

However, it is difficult for these three types to completely eradicate the impact of foaming on the desulfurization system, and at the same time, it will affect the desulfurization efficiency to a certain extent and increase the operating cost.

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