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Analisis Biaya Pengolahan Batu Andesit pada Unit Crusher di PT. Bumi Kejayan Sari, Era Nitika; Fanani, Yazid; Putri, Fairus Atika Redanto
Prosiding SENASTITAN: Seminar Nasional Teknologi Industri Berkelanjutan Prosiding SENASTITAN Vol. 05 2025
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengolahan bahan galian merupakan proses pemisahan mineral berharga dari mineral pengotor. Salah satu aspek biaya yang perlu dipertimbangkan dalam kegiatan ini adalah biaya pengolahan, yaitu pengeluaran yang timbul sebelum produk siap digunakan. Penelitian ini bertujuan menganalisis biaya pengolahan dari penjualan produk serta mengevaluasi sensitivitas terhadap perubahan parameter biaya operasional.Penelitian ini menggunakan metode kuantitatif dengan mempertimbangkan data lapangan berupa feed tambang dan hambatan kerja dalam analisis biaya. Pengolahan batu andesit memerlukan peralatan utama dan penunjang. Peralatan utama meliputi jaw crusher dengan kapasitas 47,25–128,25 ton/jam, sedangkan peralatan penunjang meliputi hopper, vibrating feeder, vibrating screen, dan belt conveyor.Total biaya operasional pengolahan batu andesit adalah Rp96.068.600,00, mencakup biaya listrik, grease, gaji pegawai, serta perawatan dan perbaikan. Dengan produksi 12.088,29 ton per bulan, PT. Bumi Kejayan memperoleh pendapatan Rp108.794.610,00 dan nilai penjualan Rp12.726.010,00. Biaya pengolahan mempengaruhi sensitivitas pemodelan harga jual dan produksi, terutama jika parameter biaya produksi meningkat lebih dari 13%. Faktor paling sensitif terhadap perubahan biaya operasional adalah listrik, gaji pegawai, perawatan, dan grease.
Calculation of coal resources and reserves using the cross-section method in the mining plan area of PT. Sentosa Prima Coal in Mersam District, Batang Hari District, Jambi Azis, Muhammad Jundi Haikal; Fanani, Yazid
Journal of Earth and Marine Technology (JEMT) Vol 3, No 1 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v3i1.3603

Abstract

PT. Sentosa Prima Coal is a company engaged in the Coal sector. This company is located in Mersam District, Batanghari Regency, Jambi Province. The area of the mining business permit of PT. Sentosa Prima Coal of 2000 Ha. Mining activities require reserve calculations before mining activities are carried out, including making a coal deposit model, calculating coal resources, pit design, calculating coal reserves, and calculating the stripping ratio (SR) value, so that later the number of coal reserves can be obtained and obtain a deposit model. The modeling and calculation of reserves were carried out using the "cross-section" with the help of Surpac 6.6.2 software. Based on the Cross Section's estimation results, coal resources for PT. Sentosa Prima Coal amounted to 8,073,932 tons, and coal reserves 6,662,514 tons, the volume of Overburden for the planned mining activity area was 24,779,981 BCM, and the stripping ratio value was obtained 1:4.
Mining design and short-term production scheduling by using 3D modeler in Coal mining at PT. Internasional Prima Coal, Palaran District, Samarinda City, East Kalimantan Province Berhitu, Theo; Fanani, Yazid; Cahyono, Yudho Dwi Galih
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2885

Abstract

PT. International Prima Coal is a subsidiary of a combination of two companies, namely PT. Bukit Asam (Persero) Tbk and PT. Mega Raya Kusuma which is engaged in coal mining in East Kalimantan, with an area of 3,238 hectares of Mining Business Permit in Bantuas and Handil Bakti Villages, Palaran District, Samarinda City which is planning to open a new block, namely North Eagle 3 block for the sustainability of coal production. This is the background for the author to research mining design and production schedule. This study aims to analyze resources and reserves, design mining, determine the combination of tools and monthly production scheduling. The research method used is qualitative and quantitative methods. the quantitative method will produce data such as the value of resources and reserves, slope geometry, SR (Stripping Ratio), and the amount of production per month. The qualitative method will produce data such as haul road designs, mining methods, mining sequences. Based on the results of modeling of coal deposits in the northern pit eagle 3 has 3 seams (Q050, Q070, Q080) with a total measured resource calculated by the polygon method is 726,898 tons. The design of the mining pit limit at an elevation of 0 masl is the contour of the Q070 seam structure with a total coal reserve of 66,516 tons and OB 651,952 bcm with SR 10. The haul road is made of 2 lanes with a straight road width of 9 m and a bend road width of 18 m. The form of drainage that is made is a channel with a trapezoid shape and a settling pond. The mining method used is open pit with down-dip excavation. Mining sequences and production schedules are divided into 4 mining sequences to obtain a production target of ±16,000 tons/month.
Analysis of Decreased Limestone Production on the Effect of Rainfall with the Linear Regression Method Aditya, Muhammad Tri; Susilo, Helik; Fanani, Yazid
West Science Interdisciplinary Studies Vol. 1 No. 10 (2023): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v1i10.334

Abstract

Limestone mining is a quarry system mining . Its production is influenced by weather factors, especially rainfall. This study aimed at determining the mathematical model wich is able to correlate the influence of rainfall on production of limestone. In addition, it analyzed the correlation between rainfall and limestone production using linear regression method. There are four important steps in this research. The first step is to collect data production and production factors. The second step is to process the data into a mathematical model using linear regression. The third step is to test the result of the mathematical model with the statistical test method. Then the fourth step is to analyze the mathematical model that has met the statistical test results. The results showed that the best mathematical model was: Log P = 0.502 x LOG((JO X Pr) 1.99 x (CH)-0.001) + 0.0002. In conclusion, the effect of rainfall toward the production derivation was very low. Besides, operation hours and productivity also affected production derivation.
Analysis of Decreased Limestone Production on the Effect of Rainfall with the Linear Regression Method Aditya, Muhammad Tri; Susilo, Helik; Fanani, Yazid
West Science Interdisciplinary Studies Vol. 1 No. 10 (2023): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v1i10.334

Abstract

Limestone mining is a quarry system mining . Its production is influenced by weather factors, especially rainfall. This study aimed at determining the mathematical model wich is able to correlate the influence of rainfall on production of limestone. In addition, it analyzed the correlation between rainfall and limestone production using linear regression method. There are four important steps in this research. The first step is to collect data production and production factors. The second step is to process the data into a mathematical model using linear regression. The third step is to test the result of the mathematical model with the statistical test method. Then the fourth step is to analyze the mathematical model that has met the statistical test results. The results showed that the best mathematical model was: Log P = 0.502 x LOG((JO X Pr) 1.99 x (CH)-0.001) + 0.0002. In conclusion, the effect of rainfall toward the production derivation was very low. Besides, operation hours and productivity also affected production derivation.
Penyusunan Zonasi Kawasan Pertambangan Di Kabupaten Magetan Berdasarkan Aplikasi Sistem Informasi Geografis Dengan Metode Pertampalan Fanani, Yazid; Widiatmoko, Fajar Rizki; Al Fakih, Salahudin; Suryawan, I Wayan Koko; Sari, Mega Mutiara
PROMINE Vol 9 No 2 (2021): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v9i2.2774

Abstract

Magetan has resources mineral potential of non-metallic minerals and rocks. The mineral variety is a mineral which relates to the people livelihood because it necessary for infrastructure development. There is no mining area zoning until now and it can be used to optimize the management and utilization of potential resources. In Magetan, mining area zoning was carried out by giving weights and assessments to the determining parameters which was conducted by patch method and it utilized Geographic Information System. So, the result of mining area zoning could be grouped into three zones. They were a zone could be granted a mining permit, a zone could be granted a conditional mining permit and a zone could not be granted a mining permit. Determining parameters for mining area zoning were land height, disaster vulnerability, groundwater, river borders, lakes and irrigation buildings, springs, forests and protected areas, agricultural land and cultivation areas, settlements, cultural heritage, tourism and district strategic areas, and land slope. The result of potential resources identification was carried out by analyzing Magetan geological map which was obtained potential resources, like andesite, pumice breccia, sandstone, siltstone and basalt. The zoning of Magetan mining area is a zone could bne granted a mining permit and the area was 9,914.507 Ha or about 14% in a percentage of the area, a zone could be granted a conditional mining permit covering an area of 20,748.29 Ha or about 30% and a zone unable to be granted a mining permit covering an area of 39,296.08 Ha or about 56% of the total area of Magetan.
Pemodelan Dataset Tambang Terbuka pada PT. United Tractors Semen Gresik dengan Metode Artificial Neural Network Kurniawan, Muchamad; Fanani, Yazid; Agustini, Siti; Wachid, Aldi
PROMINE Vol 12 No 1 (2024): PROMINE
Publisher : Program Studi Teknik Pertambangan, Fakultas Sains dan Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jp.v12i1.3311

Abstract

The Mining industry in Indonesia plays a vital role as a source of state income and an integral part of the industrial progress of the nation. The majority of the mining industry in Indonesia employs open-pit mining. One of the weather factors that can be an obstacle in open-pit mining is rainfall. Therefore, this research focused on modelling data from rainfall, working hours and production outcomes. It applied the Artificial Neural Network algorithm with an input layer consisting of two neurons, a hidden layer with two neurons, and an output layer. The data on Rainfall working hours, and production results were trained to produce a model that, later on, will be used to predict the value of production results. For model testing, this study uses two parameters, namely learning rate and epoch. From 90 times of testing, the best model was obtained with a learning rate value of 0.3 and an epoch of 1000 which resulted in an RMSE error of 0.004838259401280330
Analisis Kualitas dan Estimasi Sumber Daya Batu Gamping Daerah Lohjejer – Jember Yuwanto, Sapto Heru; Fanani, Yazid; Bahar, Hendra; Irmawati, Erni
Semnas Ristek (Seminar Nasional Riset dan Inovasi Teknologi) Vol 10, No 1 (2026): SEMNAS RISTEK 2026
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/semnasristek.v10i1.8873

Abstract

Comparison Of Quarry Resource Estimation Using Cross Section And Contour Methods At PT. X, East Java, Indonesia Devananda; Avellyn Shinthya Sari; Yazid Fanani; Nazario Gomez
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.1279

Abstract

PT  X, located in Pasuruan, East Java, has been exploring for sirtu (sand and gravel) in a Mining Business License (IUP) area of 12.12 hectares. This study aims to estimate the quality and quantity of sirtu using two methods, namely Cross Section and Contour. The estimation results show that the volume of top soil obtained through the Cross Section method is 428,253 m³, while the Contour method produces a slightly lower volume of 417,964 m³. For the sludge volume, the Cross Section method estimated a volume of 7,404,289 m³, while the Contour method gave a higher estimate of 7,579,433 m³. The difference in estimation results between the two methods is due to the distance between the incisions used in the measurements as well as differences in the methodological approach. The total difference in volume obtained from the two methods amounted to 175,144 m³. This study provides important insights into the potential sludge resources in the ASA IUP area and shows how different methods can affect the estimation results. With this information, it is hoped that the company can make better decisions in the management and utilization of existing sludge resources. This research also emphasizes the importance of choosing the right method in natural resource exploration to obtain accurate and reliable estimates.
Assessment of Drainage Efficiency in the Backfill Disposal Area of East Air Laya Mine Field at PT. Bukit Asam; A case study from Tanjung Enim, South Sumatera, Indonesia Fitri Indah Dwi Suci; Yazid Fanani; Yudho Dwi Galih Cahyono
Journal of Earth and Marine Technology (JEMT) Vol 5, No 1 (2024)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2024.v5i1.5942

Abstract

This research undertakes a thorough evaluation of the drainage systems in the disposal areas at PT. Bukit Asam during the October 2023 sequence, with the objective of understanding the factors that influence the capacity and efficiency of disposal mounds, the density of materials used, the geometric structure of disposal sites, and the design dimensions of open drainage channels. Utilizing the trapezium volume formula, the study meticulously calculated the planned disposal volumes at various elevations—2,289,155 Bank Cubic Meters (BCM) at 36 meters, 1,004,112 BCM at 42 meters, and 669,892 BCM at 48 meters—comparing these against an actual obtained volume of 1,799,111.4 BCM. The substantial variance between the planned and actual volumes highlights the critical challenges in achieving predictive accuracy in disposal management. Further assessments were conducted using the Dynamic Cone Penetrometer (DCP) with a 60-degree cone to determine the density and sub-grade California Bearing Ratio (CBR) of the barrier materials, which were found to be suitable for road construction, falling under sub-grade C classification. Moreover, the Gumbel method was applied to devise the dimensions of a trapezoidal open channel, designed to facilitate a drainage capacity of 100,432.996 cubic meters per hour over a length of 3000 meters. The channel dimensions included a bottom width of 1.1 meters, a top width of 2.3 meters, a depth of 2.4 meters, and a 45-degree slope, with a Manning’s coefficient (n) of 0.03. This detailed inquiry not only provides vital insights into the operational adjustments required for effective drainage but also promotes the adoption of sustainable and safe disposal management practices in the mining industry. The findings from this study serve as a pivotal reference for future improvements in the design and management of mine waste disposal systems
Co-Authors Agung Wicaksono Ahmad Fawaidun Nahdliyin Al Fakih, Salahudin Aldy Elriq Syahputra Alwi Syahid Andres Kevi Paki Aprilia Dwi Astuti Aprilia Dwi Astuti, Aprilia Dwi Avellyn Shinthya Sari Avellyn Shintia Sari Azis, Muhammad Jundi Haikal Bahar, Hendra Berhitu, Theo Destinaba, Rilianisa Devananda Donny Rusdian Pratama Donny Rusdian Pratama eko purnomo Eko Purnomo Faishol Amir Faishol Amir, Faishol Fajar Rizki Widiatmoko Fajar Rizki Widiatmoko Fajar Rizki Widiatmoko Fajar Rizki Widiatmoko Filda Oktaviani Erong Fitri Indah Dwi Suci Galih Cahyono, Yudho Dwi Gastramat, Maria Frumensia Grains Silvester Sapan Hardi Wahono Helik Susilo Irmawati, Erni Irwanto, Muhammad Agus Jone, Yohanes Lakon Utamakno Mahindra, Fahni Mega Mutiara Sari Melang, Antonius Longan Muchamad Kurniawan, Muchamad Muhammad Agus Irwanto Muhammad Jundi Haikal Azis Muhammad Rusdi Taufiq Muhammad Tri Aditya Nahdliyin, Ahmad Fawaidun Nazario Gomez Noche Lorensius Sairdekut Paki, Andres Kevi Pratama, Donny Rusdian Putri, Fairus Atika Redanto Putri, Ratih Hardini Kusuma Ratih Hardini Kusuma Putri Reky Sasauw Rilianisa Destinaba Rino Firsa Putra Syahanda Sairdekut, Noche Lorensius Salahudin Al Fakih Salahudin Al Fakih Salsabila, Unik Hanifah Sapan, Grains Silvester Sapto Heru Yuwanto Sari, Avellyn Shintia Sari, Era Nitika Sari, Mega Mutiara Sasauw, Reky Simela Talaohu Simela Talaohu Siti Agustini, Siti Suryawan, I Wayan Koko Susanto, Muhammad Nizarudin Agus Syahanda, Rino Firsa Putra Syahid, Alwi Syamsul Arifin Talaohu, Simela Theo Berhitu Titirloloby, Aloysius Usman Usman Usman Usman Utamakno, Lakon Vincent, Vittorio Wachid, Aldi Wahono, Hardi Widiatmoko, Fajar Rizki Yohanes Jone Yohanes Jone Yudho Dwi Galih Cahyono