Liquid level control method of steel slag desulfurization agent storage tank

Abstract

By applying a sound ranging principle, an ultrasonic emission probe and an ultrasonic receiving probe are arranged on the outer wall of the upper end of a steel slag desulfurization agent storage tank, wherein the ultrasonic emission probe is connected with the output end of a data processing module through a lead; the ultrasonic receiving probe is connected with the input end of the data processing module through a wire; an ultrasonic wave is emitted by the ultrasonic emission probe; the ultrasonic wave is reflected to the ultrasonic receiving probe via the liquid level; the signal is transmitted to the data processing module by the ultrasonic receiving probe; and the liquid level is displayed and controlled after the signal is processed. The invention provides a method for displaying and controlling the liquid level in a non-contact manner by using ultrasonic wave.

Description

technical field [0001] The invention relates to non-contact display and control of the liquid level of a desulfurizer in a steel slag desulfurizer storage tank with certain viscosity prepared by applying the principle of mechanochemistry, and is a method for displaying and controlling the liquid level by using ultrasonic waves. Background technique [0002] At present, the flue gas desulfurization technology is mainly based on the wet desulfurization method. The common methods are limestone / lime-gypsum method, ammonia method, magnesium method and seawater method. Among them, the calcium oxide desulfurization technology is mature and widely used. The iron and steel industry produces a large amount of waste by-product steel slag, which is rich in calcium oxide. The steel slag is prepared into a steel slag desulfurizer, and the active ingredient of calcium oxide in the steel slag is used to fully improve the removal efficiency of sulfur dioxide in calcium desulfurization and rea...

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Problems solved by technology

[0003] The steel slag desulfurizer prepared from steel slag by applying the principle of mechanochemistry needs to be stored in the storage tank, and the liquid level of the steel slag desulfurizer in the storage tank must be displayed and controlled. Such liquid level display and control methods are not suitable for steel slag desulfurizers, because steel slag desulfurizers have a certain viscosity, which is prone to sticking and cause failure of float balls and liquid level electrode points.

Ultrasonic display and control of the liquid level of steel slag desulfurizer is non-contact display and control, which solves the problem of failure of conventional liquid level display and control equipment caused by the viscosity of steel slag desulfurizer

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