Apparatus and method used for radar online detection of surface shape of blast furnace burden surface

Abstract

The invention discloses an apparatus and a method used for radar online detection of the surface shape of a blast furnace burden surface. The apparatus comprises a radar detector, an on-site control box, a power conditioner, an indoor control box, a display, an industrial computer and a single converter; the radar detector is connected to the industrial computer by the on-site control box; the radar detector, the on-site control box and the indoor control box are connected successively in series so as to form a branch circuit which is connected to the industrial computer; the industrial computer is connected to the display and the signal converter respectively; the power conditioner is connected to the indoor control box. The method comprises following steps: radar signals are emitted and received by ranging radars, and are transferred to the industrial computer; the height of the blast furnace burden surface is calculated by the industrial computer based on obtained parameters, and a shape model of the blast furnace burden surface is built; real parameters and prescribed technology parameters are compared by the industrial computer, and if the difference of the real parameters and the prescribed technology parameters excesses a set value, an alarm device is triggered. The method of the invention is capable of realizing real-time and accurate detection of the height and the surface shape of the blast furnace burden surface by using radar ranging technology.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a radar online detection device and detection method for the surface shape of a blast furnace material surface. Background technique [0002] In the blast furnace ironmaking production process in the metallurgical industry, the blast furnace cloth is the most important part of the blast furnace ironmaking system. Timely, accurate, reasonable and uniform distribution is the prerequisite to ensure the normal and smooth production of blast furnaces and product quality. Therefore, it is particularly important to accurately control the height and surface shape of the blast furnace charge surface. The measurement of the blast furnace charge level has been a problem for a long time. Traditionally, the monitoring of the closed blast furnace charge level generally uses a mechanical probe to collect data. Although the mechanical probe is accurate and reliable, it cannot cover every poi...

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Problems solved by technology

The measurement of the blast furnace charge level has been a problem for a long time. Traditionally, the monitoring of the closed blast furnace charge level generally uses a mechanical probe to collect data. Although the mechanical probe is accurate and reliable, it cannot cover every point of the furnace top charge surface, resulting in the analysis of the furnace charge. The difficulty of surface distribution is increased, and the operator's experience can only be used to ensure the distribution and firepower status of the blast furnace, which brings great experience and randomness to the operation of the blast furnace, cannot guarantee accuracy, and is not conducive to the optimization of the distribution operation

In addition, if infrared imaging technology is used to analyze the infrared image on the surface of the material surface, the distribution of the material surface of the blast furnace can be indirectly estimated by detecting the temperature distribution of the material surface of the blast furnace. Fully reflect the shape of the furnace top material surface, but there is a problem that the effect is not good in the low temperature area

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