Radar, video and laser system combined device for measuring blast furnace burden surface

Abstract

The invention brings forward a combined system for measuring blast furnace burden surface. Three apparatuses including a multiple-input-multiple-output MIMO radar and antenna array, a visible light or infrared light video camera and a laser rangefinder are combined to form a system. The device provided by the invention comprises a video monitoring system and a laser rangefinder system. A multiple-input-multiple-output MIMO radar burden surface measuring system, the video monitoring system and the laser rangefinder system are integrated into a blast furnace roof radar system cooling protective cover. The device also comprises a display and image processing system. The display and image processing system is adopted to simultaneously realize display and comparison of three measuring systems and carry out data fusion, data exchange and data verification. On a computer, one or more different measuring combinations are respectively selected according to different situations so as to realize dynamic measuring requirements of burden surface of different precisions, different imaging speeds and different resolutions and provide different measuring methods.

Description

[0001] technical field [0002] The present invention proposes a system for combined measurement of blast furnace material level, which consists of multiple-input multiple-output MIMO radar and antenna array, visible light or infrared video camera, and laser rangefinder to form a system, which assist each other and use their own measurement The advantage is to achieve the function of monitoring the dynamic material level and its online material level display. [0003] Background technique [0004] The monitoring of the material level in the blast furnace is very important in steel production. On the one hand, through the observation of the material level, the distribution of the furnace material in the blast furnace can be known, so that the production personnel can carry out targeted control on the next distribution according to the distribution of the material level. To improve production efficiency; on the other hand, when the distribution of the material surface in t...

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Problems solved by technology

Since the data is not obtained by directly measuring the information of the material level, the error of the material level obtained by processing the data will increase. Another disadvantage is that the laser cannot be used in a dusty production environment, and it is often used when the furnace is turned on. Well, poor measurements in production

[0016] In the Chinese Patent Publication No. CN102312031A, the invention patent "Measuring Device and Method for Blast Furnace Roof Material Level Without Material Bell", it uses the existing mechanical probe in the blast furnace to install a laser rangefinder, gyroscope and wireless transmission on it. The device constitutes a material level measurement system. The existing problem is that the blast furnace system it measures is a bellless blast furnace, which has great limitations on the application premise; There are many instruments and the cost is high; finally, the measured data are only points on a line on the material surface (the number of measured real data is related to the number of lasers), and the number of installed laser rangefinders is limited. This will lead to very effective collection of data points. A large amount of data on the material surface is obtained by fitting, and the shape of the final material surface may be quite different from the real material surface.

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