High temperature liquid component online detection device and method

Abstract

The invention relates to a high temperature liquid component online detection device and method. The device comprises a signal excitation and collection unit, a data processing and control unit and adetection gun, which are integrated in a shell. One end of the detection gun is immersed in high temperature liquid, the laser of the signal excitation and collection unit is excited on the surface ofthe high temperature liquid in the detection gun to generate a plasma signal, and a detection result of constituent elements of a tested sample are calculated and transmitted by collecting and processing the plasma signal. The high temperature liquid component online detection device provided by the invention can effectively overcome the plasma sputtering, burning and evaporation substance on thesurface of the tested high temperature liquid, reduce the influence of the surface jitter of the high temperature liquid, and enhance the stability of the plasma signal. The high temperature liquid component online detection device provided by the invention has a high integration degree and flexible arrangement, multi-point arrangement can be conveniently achieved onsite, and the element concentration information of interest is collectively transmitted to a monitoring room in a wired or wireless manner for analysis. The high temperature liquid component online detection device can well matchwith the craft process to improve the product quality, reduce the production cost and reduce the energy consumption.

Description

technical field [0001] The invention relates to the technical field of on-line detection of liquid components, in particular to an on-line detection device and method for high-temperature liquid components. Background technique [0002] In metallurgy, smelting and other production processes, liquid composition detection is an important part of the process, which is related to product composition and quality control, energy consumption, and production efficiency. Taking the production process of aluminum alloy as an example, the off-line detection method of manual sampling and sample preparation is widely used at present. It is necessary to open the furnace door or take manual sampling at the sampling place, and then go through a series of processes such as cooling, grinding, and polishing. Even if the whole process is fully automated, it will take 3 to 5 minutes to measure and analyze on the analytical instrument, accounting for more than 10% of the process time. This offli...

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Problems solved by technology

[0004] The present invention aims to provide an on-line detection device and method for high-temperature liquid components, which can overcome interference factors such as liquid level jitter in the plasma excitation area of ​​the measured high-temperature liquid, plasma excitation substances, high-temperature burning loss, evaporation, and inflexible industrial field applications. Insufficient in other aspects

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