Blast furnace raceway imaging system and imaging method

Abstract

The invention discloses a blast furnace raceway imaging system and imaging method. The system comprises a microwave measuring instrument for depth measurement of a blast furnace raceway and a three-dimensional imaging computer of a zone dead stock. High-frequency microwaves are emitted to the detected blast furnace raceway, reflection echo waves are received, after the echo waves are converted into zero intermediate frequency signals through frequency-mixing filtering processing, the zero intermediate frequency signals are adjusted then, after signal processing, distance data measured by the microwave measuring instrument is converted into coordinate data through the three-dimensional imaging computer, and a three-dimensional image of the zone dead stock is fitted according to the coordinate data. By using the imaging system and the imaging method, the depth of the blast furnace raceway can be measured effectively, such that 3D imaging of the dead stock at the bottom of a furnace is realized.

Description

Technical field [0001] The invention relates to a technique for measuring the depth of a blast furnace gyration zone, and more specifically, to an imaging system and an imaging method for the blast furnace gyration zone. Background technique [0002] In the process of steel smelting, real-time monitoring and understanding of the data in the blast furnace maneuver zone is very important in steel production. The blast furnace whirl zone is the source of heat and energy in the entire blast furnace production process. It is an important reaction zone indispensable for the stable operation of the blast furnace. It plays a vital role in the energy saving and smooth operation of the blast furnace. The formation and reaction of the whirling zone directly affect the distribution of gas in the lower part of the blast furnace, the balance of the charge, and the heat and mass transfer process in the entire blast furnace. It can be said that the smooth operation of the blast furnace directly...

AI Technical Summary

Problems solved by technology

[0009] However, due to the complex physical and chemical changes in the convoluted zone of the blast furnace, the above methods will be interfered by hot air cross-section shrinkage and coal powder injection during measurement, and the accuracy is not high

Not very versatile

Therefore, the situation in the roundabout has not been fully and intuitively understood

In addition, the above measurements are all for a single roundabout, and the conditions of all roundabouts at the bottom of the blast furnace have not been integrated to obtain a three-dimensional image of the dead material column, so that it is impossible to have an intuitive and comprehensive understanding of the bottom of the blast furnace

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