ANALISIS PERUBAHAN KUALITAS BATUBARA DI FRONT PENAMBANGAN TERHADAP KUALITAS BATUBARA DI STOCKPILE, KABUPATEN BUNGO, PROVINSI JAMBI

Abstract

PT. Baratama Rezeki Anugerah Sentosa Utama merupakan perusahaan swasta Nasional yang bergerak dibidang pertambangan batubara dan telah ber investasi di Kecamatan Rantau Pandan, Kabupaten Bungo, Provinsi Jambi sejak tahun 2010. Metode pengolahan data menggunakan SPSS Statistic. Hasil Persentase Analisis Proksimat berupa Total Moisture pada front tambang lebih kecil dari stockpile 21,37 % (arb) < 22,77 (Adb), Inherent Moisture) pada front tambang lebih kecil dari stockpile 7,50% (Adb) < 7,61% (Adb), Ash di front tambang lebih besar dari pada di stockpile yaitu 9,55 % (adb) > 9,41 % (adb), Volatile Matter dilokasi tambang sebesar 32,80% (adb), sedangkan di stockpile sebesar 32,91 % (adb), Fixed Carbon dilokasi front tambang diperoleh nilai 50,14% (adb) sedangkan di stockpile 50,07 % (adb), Total sulphur di front penambangan sebesar 0,57% adb lebih kecil dari pada di stockpile sebesar 0,69%. Adanya pengaruh nilai calorie value terhadap analisis proksimat, baik itu di front penambangan maupun di stockpile berdasarkan pengolahan data diperoleh bahwa terjadi perubahan dan peningkatan nilai q square yang merupakan seberapa besar pengaruh calorie value terhadap uji beberapa analisis proksimat. Peningkatan pengaruh calorie value terhadap kualitas batubara di stockpile yang mengalami perubahan dapat berupa nilai volatile matter (dari 0,956 - 0,967), fixed carbon (dari 0,806-0,998) dan total sulfur (dari 0,752-0,847). Upaya yang dapat dilakukan untuk menjaga kualitas batubara adalah Hindari penambangan disaat kondisi tanah masih basah setelah hujan. Hal ini akan menyebabkan material tanah lengket pada roda dump truck. Adanya sistem drainase dapat menjaga kualitas batubara dari genangan air di stockpile. Hindari genangan air di stockpile dan dimulut tambang (lokasi penggalian batubara) dengan membuat system drainase.

Kata Kunci: Proksimat ; Regresi ; Kualitas Batubara

PT. Baratama Rezeki Anugerah Sentosa Utama is a national private company engaged in coal mining and has invested in Rantau Pandan District, Bungo Regency, Jambi Province since 2010. Data processing method using SPSS Statistics. The results of the Proximate Analysis Percentage of Total Moisture on the mine front is smaller than the stockpile 21.37% (arb) < 22.77 (Adb), Inherent Moisture) on the mine front is smaller than the stockpile 7.50% (Adb) < 7.61 % (Adb), Ash in the mine front is greater than in the stockpile, namely 9.55% (adb) > 9.41 % (adb), Volatile Matter at the mine site is 32.80% (adb), while in the stockpile it is 32 ,91% (adb), Fixed Carbon at the mine front location obtained a value of 50.14% (adb) while in the stockpile 50.07% (adb), the total sulfur in the mining front was 0.57% adb smaller than in the stockpile of 0.69%. The influence of the calorie value on the proximate analysis, both on the mining front and on the stockpile, based on data processing, it was found that there was a change and an increase in the value of q square which was how much influence the calorie value had on several proximate analysis tests. The increasing effect of calorie value on the quality of coal in the stockpile that changes can be in the form of volatile matter values (from 0.956 - 0.967), fixed carbon (from 0.806-0.998) and total sulfur (from 0.752-0.847). Efforts that can be made to maintain the quality of coal are to avoid mining when the soil is still wet after it rains. This will cause the soil material to stick to the dump truck wheels. The existence of a drainage system can maintain the quality of coal from waterlogging in the stockpile. Avoid puddles of water in the stockpile and at the mouth of the mine (coal quarry site) by making a drainage system. 

Keywords: Proximate ; R Square ; Coal Quality