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Material falling trajectory measurement method for blast furnace

A blast furnace and blanking technology, applied in the field of measurement, can solve problems such as time-consuming, poor accuracy, inconsistent drawing results, etc.

Inactive Publication Date: 2013-01-02
CHINA STEEL
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Problems solved by technology

[0010] However, since the coordinate conversion step of drawing the trajectory of the material flow 120 from the laser grid image 100a to the blast furnace mechanical map 100b is completely judged by humans, this method is not only time-consuming, but also the drawing results performed by different people may be inconsistent , so the accuracy is not good

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  • Material falling trajectory measurement method for blast furnace
  • Material falling trajectory measurement method for blast furnace
  • Material falling trajectory measurement method for blast furnace

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Embodiment Construction

[0029] Please refer to Fig. 2, Fig. 3A and Fig. 3B together, which are respectively a flow chart showing a method for measuring the blanking trajectory of a blast furnace according to an embodiment of the present invention, and a method according to an embodiment of the present invention. A grid image within a blast furnace, and a blast furnace mechanical diagram corresponding to the blast furnace grid image of FIG. 3A. In this embodiment, when performing the method 200 for measuring the blanking trajectory of a blast furnace, as described in step 202, at least two strong light sources 302 and 304 are used to form several light beams 314 and 316 in the blast furnace 308, respectively. , as shown in Figure 3A and Figure 3B. These light beams 314 and 316 intersect to define a grid plane 320 within the blast furnace 308 . In an exemplary embodiment, the intense light sources 302 and 304 may be, for example, laser emitters.

[0030] Next, as described in step 204 of the measurem...

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Abstract

The inventive material falling trajectory measurement method for blast furnace includes forming a grid plane containing at least four grid intersections in a blast furnace by use of light beam; shooting interior of the blast furnace with a camera to obtain image of the grid plane; defining plural intersections corresponding to the grid intersections respectively on a mechanical diagram of the blast furnace; calculating corresponding parameters between coordinates of the intersections and coordinates of the grid intersections; obtaining outer edge bright spot coordinates and inner edge bright spot coordinates of material flow; calculating their corresponding outer edge bright spot coordinates and inner edge bright spot coordinates in the mechanical diagram; and performing curve fitting on the corresponding outer edge bright spot coordinates and inner edge bright spot coordinates, to obtain outer edge trajectory curve and inner edge trajectory curve of material flow.

Description

technical field [0001] The present invention relates to a measuring method, and in particular relates to a measuring method of a blast furnace (Blast Furnace) blanking track. Background technique [0002] The material distribution operation mode of the blast furnace will affect the material layer structure and the distribution of furnace gas. Therefore, if the curves of the outer edge and inner edge of the material flow can be provided when the material distribution trough is dropped at various angles, the center line of the output flow can be defined. Then, the drop point information of the material flow can be obtained from the defined material flow center line, which can help the on-site operators to control the geometry of the material surface, thereby improving the air permeability of the material surface, increasing the gas utilization rate, Stabilizes the thermal load on the blast furnace walls. Therefore, the material flow trajectory of the blast furnace is very im...

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Application Information

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IPC IPC(8): G01C11/00
Inventor 陈彦廷郭士纲萧嘉贤杜宪文
Owner CHINA STEEL
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