Coke-blowhole harshness detecting method

Abstract

The invention discloses a measuring method for coke air cavity roughness. It includes the following steps: sampling, capturing grey scale image of coke 2D section on computer that has optical microscope with digital output, transforming the image to black and white two value image and taking adjusting to fault air cavity and broken air cavity wall, measuring and calculating the area A and circumference P of every air cavity and the roundness C, fitting a ellipse for every air cavity and calculating roundness, the air cavity roughness is the ratio of the two value, calculating roughness of all the air cavities and calculating mean value that is the coke air cavity roughness. The invention would take effective prejudgment to intensive property of blast furnace using coke.

Description

(1) Technical field [0001] The invention relates to a method for measuring the pore roughness of coke, and belongs to the technical field of charcoal phases applied in coking. (2) Background technology [0002] In traditional ironmaking production, one of the main functions of coke in the blast furnace is as the skeleton of the material column, so the strength has become one of the important parameters to evaluate the performance of blast furnace coke. As a porous coke, its pore structure is closely related to its strength. The relationship between structure and performance has important practical significance for guiding actual production, especially coal blending. However, in the field of blast furnace coke, although some research has been done on the pore structure characteristics of coke, parameters such as porosity, average pore diameter (size), pore wall thickness, and pore deformation have been set, but the relationship between these parameters and coke properties has...

AI Technical Summary

Problems solved by technology

In the early days of manual analysis, since the distance between the test lines cannot be made very small, a large number of pores with a diameter smaller than the value of the distance may be missed; The probability of interception is smaller

In a limited number of measurements, small pores are often not reflected in the cross-section, making the number of measured pores low

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