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All Journal Jurnal Indonesia Sosial Teknologi Jurnal Inovasi Global
Reni Arisanti
Universitas Prabumulih
Astronomy Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences

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Analysis of The Influence of Wind Speed and Particle Size On Temperature Increase During The Coal Combustion Process of MT-46, BB-50, and Al-55 at PT Bukit Asam Tbk., Tanjung Enim, South Sumatra Reni Arisanti; Ahmad Husni
Jurnal Indonesia Sosial Teknologi Vol. 6 No. 5 (2025): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v6i3.8923

Abstract

Swabakar is an event where coal can burn on its own. The purpose of the PT Bukit Asam Tbk Laboratory is to analyze the influence of wind speed and grain size differences and determine the value of transition temperature and the normality test of time and temperature data of coal samples. The research method used is to measure wind speed using an anemometer and measure the coal temperature before and after the swab. It can be seen from the results of the discussion that coal with a grain size of 13 mm experiences a faster swab process than coal with a grain size of 50 mm. The results showed that coal with a grain size of 13 mm experienced a faster swab than a size of 50 mm. The order of transition temperature values based on the grain size of 13 mm was MT-46 < BB-50 < AL-55, while at 50 mm the same results were found. This shows that MT-46 coal is more susceptible to swabbing than other types. Normality testing of time and temperature data shows that all data are distributed normally, so the validity of the research results can be accounted for. This study concludes that the smaller the size of the coal grains, the faster the oxidation process leads to spontaneous combustion. Wind speed also plays a role in accelerating the spread of oxygen into the coal pile, which increases the risk of swabbing. The implications of this study are important for the coal mining industry to consider the factors of grain size and wind speed in stockpile management to reduce the risk of waste and maintain the quality of coal.
Penanganan Kontaminasi Batubara Seam E di PT Bumi Merapi Energi Blok Gedung Agung, Kabupaten Lahat Ahmad Husni; Reni Arisanti; Bimo Saputra
Jurnal Inovasi Global Vol. 3 No. 4 (2025): Jurnal Inovasi Global
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jig.v3i4.336

Abstract

Penelitian ini dilakukan di PT Bumi Merapi Energi, Blok Gedung Agung, Kabupaten Lahat, Provinsi Sumatera Selatan, yang berfokus pada kontaminasi batubara Seam E akibat keberadaan material parting berupa lempung/clay. Kegiatan penambangan dilakukan oleh kontraktor menggunakan metode tambang terbuka, yang memunculkan risiko penurunan kualitas batubara akibat kontaminasi internal. Tujuan dari penelitian ini adalah untuk mengidentifikasi faktor penyebab kontaminasi serta mengevaluasi metode penanganan parting sesuai prosedur operasional standar (SOP). Metode yang digunakan meliputi wawancara, observasi partisipatif dan nonpartisipatif, serta dokumentasi, dengan analisis dilakukan sebelum dan selama kegiatan lapangan. Hasil penelitian mengungkap lima faktor utama penyebab kontaminasi, yaitu faktor manusia, mesin, metode penambangan, material, dan lingkungan. Penanganan parting dilakukan melalui dua pendekatan: pemisahan parting berdasarkan SOP (di atas 10 cm) dan cleaning menggunakan excavator PC200 dengan cutting edge untuk meminimalkan terambilnya batubara selama proses pembersihan. Penelitian ini memberikan implikasi penting dalam pengendalian kualitas batubara secara operasional dan menyarankan perlunya evaluasi efektivitas metode penanganan serta pengembangan sistem monitoring real-time dalam kegiatan tambang. Temuan ini diharapkan menjadi referensi bagi praktik pengelolaan batubara yang lebih presisi dan berkelanjutan.
Co-Authors Ahmad Husni Bimo Saputra