№79-1

Using the WipFrag image analysis system to evaluate the quality of explosive rock fragmentation

V. Berezdetskyi¹, E. Shukurlu¹

¹National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine

Coll.res.pap.nat.min.univ. 2024, 79:7–14

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ABSTRACT

Objective. To improve the technology for analyzing the fragmentation of blasted rock mass directly on the bench after drilling and blasting operations using the WipFrag™ 4 software.

Methodology. The research methodology employs the WipFrag fragmentation analysis system to assess the efficiency of rock fragmentation by explosives. The paper highlights the advantages of optical gradation methods. Gradation measurements enable the automation of fraction evaluation, eliminating the subjectivity inherent in manual measurements. This approach does not require interrupting production processes, and results are available in a very short time, enabling timely adjustments to production methods. Optical methods allow for the analysis of large volumes of rock with expanded sampling and an increased number of specimens. Photo analysis systems serve as a practical and effective tool for measuring the efficiency of explosives in rock destruction.

Results of the study. The findings can be applied to optimize blasting parameters to reduce costs. In the mining industry, the results can be utilized for monitoring and optimizing fragmentation, minimizing oversize material that may cause excessive overloading of transport systems and crushing equipment.

Scientific novelty. A research methodology is proposed using an automated granulometry system based on digital image analysis. This approach provides rapid and accurate results, which are essential for managing fragmented rock. Digital image analysis of rock for determining grain size distribution expands the applicability of empirical calibration modes.

Practical significance. The new photo analysis technology offers numerous opportunities for diagnosing oversize formation issues, increasing the efficiency of drilling and blasting operations, reducing costs, and optimizing the process of explosive rock fragmentation.

Keywords: drilling and blasting operations, oversize material, fragmentation, explosive fragmentation, digital image, photo analysis, WipFrag software.

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