JUSTIFICATION FOR CHANGES IN THE DESIGN OF THE ROCK BREAKING ELECTROMAGNETIC HAMMER FOR ITS ENHANCED EFFICIENCY
Vassin K.A. Buktukov N.S. Aldiyarov N.U. Ozhikenov K.A. Tkachenko O.N.
2025National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2025#2025Issue 270 - 83 pp.
In the mining industry, when breaking rocks, oversized pieces are formed that exceed the dimensions of the technological equipment. To carry out secondary rock fragmentation in quarries, it is proposed to use an electromagnetic hammer. At the D.A. Kunayev Institute of Mining, a prototype of a medium class electromagnetic hammer with an impact energy of up to 6000 J has been developed. The use of the electromagnetic hammer for breaking oversized pieces in the mining industry will increase the efficiency, environmental friendliness, and automation of the technological processes of rock and ore fragmentation. To develop a competitive prototype of a rock-breaking hammer, it is necessary to justify its dynamic parameters. A microprocessor-based measurement system was developed to measure the dynamic parameters of the prototype of the electromagnetic hammer, followed by the calculation of the energy characteristics of the prototype using the software “Matlab.” A digital sensor “HC-SR04” and a microprocessor controller “Arduino Mega 2560” were used to measure the height of the moving part of the electromagnetic hammer. To eliminate measurement errors, calculate the dynamics of the plunger’s velocity, acceleration and impact energy values, and plot the dependency graphs, the “Matlab” program version R2021b was used. Experiments were conducted by supplying the power voltage to the upper coil with a current value of 120 amperes, while the lower coils received the power voltage with current values of 70, 100, and 120 amperes. The data obtained, after processing in the “Matlab” software, allowed for the construction of dynamic parameter graphs for the prototype. The analysis of the graphs revealed the design flaws of this prototype, the elimination of which will improve the technological characteristics of new developments.
acceleration , digital sensor , dynamic parameters , electromagnetic hammer , impact energy , microprocessor measuring system , rock breaking
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Branch of the RSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan, Mining Institute after D.A. Kunaev, Almaty, Kazakhstan
Satbayev University, Institute of Automation and Information Technologies, Almaty, Kazakhstan
Branch of the RSE “National Center on Complex Processing of Mineral Raw Materials of the Republic of Kazakhstan
Satbayev University
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