Method for rapidly determining proportion of gypsum, limestone and smoke dust in desulfurization circulating slurry

Abstract

The invention provides a method for rapidly determining the proportion of gypsum, limestone and smoke dust in desulfurization circulating slurry. The gypsum, limestone and smoke dust in circulating slurry are respectively located at different levels after being deposited according to the different proportions of the gypsum, the limestone and the smoke dust in the circulating slurry and the mutualinsolubility of the gypsum, the limestone and the smoke dust, image information data is subjected to automatic identification and reading by employing an automatic identification and data collection technology, and is input into a computer to calculate the volume percentage of the gypsum, the limestone and the smoke dust, and it is determined whether the contents of the three obtained components are normal or not by comparing with a standard value. A simple and rapid determination method is established for the flue gas desulfurization circulating slurry of the complex unit, solves the problemsof complicated operation and long time consumption of a conventional determination method, can simultaneously determine the contents of the gypsum, the limestone and the smoke dust in the circulatingslurry, determines whether the contents are normal or not, knows the state of the circulating slurry in time, adjusts the running state in time, stabilizes the desulfurization efficiency, avoids slurry overflow and reduces the water content of the gypsum.

Description

technical field [0001] The invention relates to the technical field of real-time monitoring of flue gas desulfurization circulating slurry in a coal-fired and gas-fired mixed unit power plant, in particular to a method for quickly measuring the ratio of gypsum limestone and soot in the desulfurization circulating slurry. Background technique [0002] The power plant has coal-fired units, gas-fired units and combined coal-gas-fired units. The flue gas is very special. The flue gas emission and flue gas composition are very unstable. The operation status of desulfurization equipment fluctuates frequently, resulting in unstable desulfurization efficiency and poor quality of gypsum. Stablize. Due to changes in the amount of smoke and dust, it will also cause endless dehydration of the foaming gypsum in the circulating slurry of the flue gas desulfurization absorption tower. It is necessary to know the status of the circulating slurry in time to adjust the operating status in ti...

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Problems solved by technology

[0005] Aiming at the problem that the proportion of gypsum, limestone and soot in the flue gas desulfurization circulating slurry of complex units is difficult to measure, the present invention establishes a simple and fast measuring method, which can simultaneously measure the contents of gypsum, limestone and soot in the circulating slurry, and judge whether normal

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