Article Per Year (5 Year)
p-Index From 2021 - 2026
1.817
P-Index
This Author published in this journals
All Journal Jurnal Forum Nuklir Akuatik: Jurnal Sumberdaya Perairan PROMINE Jurnal Himasapta MINERAL
Franto, Franto
Jurusan Teknik Pertambangan, Fakultas Sains Dan Teknik, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

Published : 18 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 9 Documents
Search
Journal : MINERAL

 1 
Kajian Sistem Penyaliran Tambang Bawah Tanah Pada PT Allied Indo Coal Jaya Sawahlunto Sumatera Barat Ferdinand De Lessep Samosir; Franto Franto; Delita Ega Andini
MINERAL Vol 6 No 2 (2021): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.905 KB) | DOI: 10.33019/mineral.v6i2.3086

Abstract

PT Allied Inco Coal Jaya (PT. AICJ) is a company that work in coal mining industry. This research is done at underground mining located at main shaft tunnel at +347 metres above mean sea level (MASL) with 334,04 m in length with room and pillar method as its mining method. This research is using quantitative method. From the calculation obtained, the total of incoming water into the mining production area is 6.13 m3/hour. For the actual incoming from well is as much as 13.32 m3/hour with the total head is as big as 29.56 m, as the time needed to discharge is 6.45 hour. Making the dewatering layout design for the incoming water at elevation of +347.32 MASL to main sump at +318 MASL with total length of 201.6 m, while the water discharged at continuous pumping at elevation +306 MASL moving toward +347.43 MASL with total distance 341.32 m. with the addition to incoming water there is an increase in the pumping working hours so it is concluded that there is difference between the planned cost and actual cost of Rp. 832,269.96.
Evaluasi Teknis dan Biaya pada Sistem Penyaliran Tambang di Pit 4 Edward PT Caritas Energi Indonesia Sarolangun Jambi Nur Annisa; Franto Franto; Delita Ega Andini
MINERAL Vol 7 No 1 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i1.3330

Abstract

This research was conducted to redesign the dimensions of the temporary sump to accommodate the total volume of incoming water so as to minimize the occurrence of puddles around the mining area. The method used is a quantitative method by analyzing daily rainfall data for 10 years (2011-2020) using the Gumbell distribution. Actual data in the form of field rainfall intensity, sump water level rise, dimensions and actual discharge of the channel as well as the length and diameter of the pipe. Based on the 5-year return period, the total incoming discharge is 27,043.160 m3/day and based on the maximum rainfall of 30,693.351 m3/day after pumping 607.71 m3/hour for 7 hours, resulting in a residual discharge of 22,789.190 m3/day for 37.5 hours (PUH 5 years) and 26,439.387 m3/day for 43.5 hours (maximum CH). The actual dimensions of all four of Edward's Pit 4 channels are already larger than theoretical. The pump cost which is planned to operate for 7 hours is Rp 408,107.14/day while the actual pump operates 4 hours with additional maintenance costs of Rp 174,811.20/day or ± 42% of the planned cost. Making the actual temporary sump is Rp 73,598,773.90 with an additional cost of making the recommended sump of Rp 62,874,123.60 or ± 85% of the actual cost with a total cost of Rp 272,744,273.
Perencanaan Biaya Reklamasi Pada Lahan Bekas Penambangan Batubara Di Site MTBU PT Bukit Asam Tbk Kabupaten Muara Enim Nadilah Juang Putri; Franto Franto; Haslen Oktarianty
MINERAL Vol 7 No 1 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i1.3333

Abstract

PT Bukit Asam Tbk is a coal mining company. The ex-mining area of ​​the MTBU site which will be reclaimed in accordance with the 2020 plan is 44 ha, but the available land is only 24.84 ha, the rest is still considered productive for mining. Therefore, it is necessary to study the planning of reclamation costs on the MTBU site land. The method of this research activity begins with determining the area of ​​the site to be reclaimed using Argics 10.6 software. then the reclamation costs were calculated which were grouped into direct costs and indirect costs based on KEPMEN ESDM 1827 of 2018. The results of the calculation of the direct cost components and indirect costs of the reclamation plan activities covering an area of ​​24.84 ha, namely the direct cost of reclamation of Rp. 14,857,849,955 with details of land management costs of Rp 2,363,798,980 and revegetation costs of Rp 485,597,426. Indirect costs are Rp 3,179,579,890,37 with details of equipment mobilization and demobilization costs (2.5%) of Rp 371.446248.88, reclamation planning costs (6%) of Rp 891.470.997.30, administrative costs and profits third parties as the implementation of the reclamation stage of production operations (8.5%) amounting to Rp. 1,262,917,246.18 and supervision fees (4.4%) of Rp. 653,745,398.02. The total cost required for land reclamation of 24.84 ha is Rp. 18,037,429,845.37.
Perencanaan Design Geometri Peledakan Berdasarkan Karakteristik Massa Batuan di Bench M PT Tanjung Bukit Nunggal Kabupaten Bangka Tengah Armansyah Putra Sinulingga; Franto Franto; Janiar Pitulima
MINERAL Vol 7 No 1 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i1.3336

Abstract

The availability of the discontinuity structure causes the rock to be blown up have a cavity that later can be traversed by the thumping of explosive energy, so force from the explosion will be inhibited and the blasting is not optimal. This study aims to find the physical condition of granite rock at the mining site, find out the value of Blastibality Index of rock, and analyze the geometry design of blasting to obtain fragmentation ≤ 75 cm. The methods used in this study are quantitative and qualitative methods that are measuring joint structures, physical conditions of rocks, calculation of Rock Factor (RF) values, and calculation of Blastibility Index. The results of this study show if the physical condition of the rocks on bench M has an RQD value 88.97 % - 99.66 %, and Rock Factor value 5.51 and a Blastability Index 45.9 so, obtained a design of geometry with a burden 3.4 m, spacing 5.1 m, stemming 2.55 m, subdrilling 0.68 m, height 7.62 m, depth 5.1 m, and power charging 2.55 m.
Pengaruh Laju Aliran Dan Ukuran Umpan Sisa Hasil Pengolahan Dengan Humprey Spiral Pada Skala Laboratorium Kabupaten Bangka Suryani Suryani; Franto Franto; Delita Ega Andini
MINERAL Vol 7 No 2 (2022): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v7i2.3512

Abstract

Remaining Processing Results is a combination of grains measuring 0.001-0.6 mm and still has an economical concentrate content. Humphrey Spiral contained in PT Bumako produces cassiterite concentrate content of 2%, while the company's target concentration is 10%. So, a research was conducted on the Humphrey Spiral on a laboratory scale to determine changes in concentrate levels and cassiterite recovery, with flow rate parameters with variations of 1.017 m/s, 1.097 m/s and 1.172 m/s and feed sizes, namely 60 mesh, 80 mesh and 100 mesh. This research method uses Grain Counting Analysis (GCA) and XRF. Based on the results of the study, the accompanying minerals in the Humphrey Spiral bait consisted of 83.98% quartz, 5.65% limonite, 5.19% hematite, 2.83% iron oxide, 1.73% monazite, 0.34% chalcopyrite, magnetite 0.17% and muscovite 0.10%. The highest concentration gain and concentrate recovery was at a speed of 1.097 m/s at a grain size of 100 mesh with a content of 10.3788% and a high recovery of 44.1512%.
Evaluasi Kemiringan Jalan Tambang Terhadap Cycle Time Alat Angkut Pada Dump Truck Hino FG 235 JJ Tambang Batu Granit Di PT Aditya Buana Inter Kabupaten Bangka Fitra Adreansyah; Franto Franto; E.P.S.B Taman Tono
MINERAL Vol 8 No 1 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i1.4094

Abstract

PT ABI is a private company engaged in the granite mining business using the open pit method. The problem encountered is that there is a slope of the mine road that does not comply with the standards set by the company, namely ≤ 8%, the slope of the mine road, which is not suitable, makes the truck to produce large rimpull, which affects the overall distribution time. This study aims to evaluate and optimize the dump truck cycle time obtained. This research begins by calculating the actual travel time on 2 dump trucks in 40 trips, conveyance A gets 493.72 seconds and conveyance B is 495.75 seconds, the actual travel time on the haul road segment exceeds ≥ 8%, i.e. in the B-C segment which has a grade of 8.86% with an average travel time of 20.38 seconds and in the C-D segment which has a grade of 10.51% with an average travel time of 37.91 seconds. Obtained circulation time decreased by 5 seconds from 494.73 seconds to 489.69 seconds with a percentage increase of 1.04% after optimization, meaning that the conveyance can transport 89 tons more of material.
Evaluasi Kinerja Alat Pengolahan Wet Belt Low Intensity Magnetic Separator (WBLIMS) Untuk Meningkatkan Kadar dan Recovery Sn di TB Primer Batubesi PT Timah Tbk Kabupaten Belitung Timur Dimas Pangestu; Franto Franto; Janiar Pitulima
MINERAL Vol 8 No 2 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i2.5020

Abstract

Primary TB Batubesi Site a subsidiary of PT Timah Tbk, processes primary tin feed stockpile and SHP of oxide clay type using various tools, including the Wet Belt Low Intensity Magnetic Separator (WBLIMS). Currently, WBLIMS can only produce tin concentrate with a grade of 0.5-2% and a recovery of 5-8%, falling below the company's target of 8% grade and 15% recovery (XRF Test). This research conducted eight experiments with variations in feed types and rates. The WBLIMS feed from the stockpile has a Sn content of 0.62%, resulting in a tin concentrate with 1.21% Sn and a recovery of 7.05%. On the other hand, the feed from SHP has a Sn content of 0.61%, resulting in a tin concentrate with 0.95% Sn and a recovery of 5.11%. The type and rate of feed affect the increase in Sn grade and recovery. At low feed rates, the feed material yields lower Sn grade and recovery, while at high feed rates, the results are higher. Increasing the feed rate for WBLIMS from the stockpile leads to a decrease in Sn grade and recovery, whereas in the processing of SHP, the Sn grade increases but recovery varies. Experiments F1L1 and F2L3 yield the most optimal Sn grade and recovery, with F1L1 having a Sn grade of 2.28% and recovery of 11.54%, and F2L3 having a Sn grade of 2.87% and recovery of 9.24%. Although not reaching the company's target, these experimental results can enhance the Sn grade and recovery compared to the previous setup.
Perhitungan Volume Stockpile dan Pengoptimalan Waktu Pengolahan Stockpile 3, 5 dan 6 Terhadap Produksi Alat Gali muat dan Alat Angkut pada TB Primer Batubesi PT Timah Tbk Neni Sherina; Franto Franto; Mardiah Mardiah
MINERAL Vol 8 No 2 (2023): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v8i2.5070

Abstract

PT Timah Tbk's Batubesi Primary Large Mine has experienced a significant decline in production in recent years, causing a change in the mining process to stockpile management that is still economical with a grade of 0.2%. This study aims to determine the volume and production of stockpiles 3, 5 and 6, the type of sediment and Sn content of stockpile material and the time required to spend stockpile material 3, 5 and 6 in order to get the optimal time. The method used is a quantitative method by taking cycle time data as much as 30 data and analyzing sample levels using XRF on each stockpile. The results of this study obtained the volume of stockpile 3 material is 132,648.42 m3,, stockpile 5 is 162,570.25 m3, and stockpile 6 is 33,090.19 m3. The calculated machine productivity at stockpile 3 is 42.17 tons/hour, stockpile 5 is 48.11 tons/hour and stockpile 6 is 39.53 tons/hour. The highest Sn content is found in stockpile 6 which is 0.33% with the type of skarn sediment. While the lowest Sn content is found in stockpile 3 which is 0.2% with oxide clay sediment type. In stockpile 5, the Sn content is 0.31% with the type of oxide clay sediment. The remaining volume of stockpile material in stockpiles 3, 5 and 6 can be spent with a time of 2.78 years using 1 unit of excavation equipment and 1 unit of transportation equipment. Optimization is carried out so that the remaining stockpile reserves can be spent within 1.74 years using 1 unit of excavation equipment and 2 units of transport equipment.
Perencanaan Tahapan Persiapan Dan Perhitungan Reklamasi Di Lahan Bekas Tambang Air Rikai PT Timah Tbk Kabupaten Bangka Salsabila Oldia Zahrah; Franto Franto; Mardiah Mardiah
MINERAL Vol 9 No 1 (2024): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/mineral.v9i1.5140

Abstract

The research location chosen was the Air Rikai ex-mining land, which is an alluvial ex-mining land within the IUP of PT Timah Tbk. The negative impact that arises from mining is in the form of land damage. This research aims to overcome damage and also ensure that reclamation activities can be carried out well. The method used in this research is a quantitative method. The data taken is in the form of soil samples, soil pH and water pH data, topographic data (x,y,z coordinates) and bathymetric data for the depth of the pit. The results of data processing and analysis show that the condition of the land to be reclaimed has an area of 13 Ha and is divided into 2, namely voids with a total area of 1.57 Ha and land area of 11.43 Ha. Land use is carried out by stockpiling overburden with a required volume of overburden of 35,511.54 m³. Land leveling with a volume of pushed soil of 35,280 m³. Arrangement of the edge of the pit with a volume of soil moved of 230.29 m³. Construction of drainage channels with an excavation volume of 214.59 m³. Installation of concrete buis type culverts with dimensions of 50 x 50 cm and a length of 50 cm. In the revegetation, 1,517 oil palm trees were planted, then 463 sea cypress trees were planted along the underside and LCC seeds to help loosen the soil. Treating acid mine drainage with 350 water hyacinths. The costs required for reclamation are divided into 2, namely, Direct Costs and Indirect Costs. The direct costs required are IDR 679,286,160 and the indirect costs required are IDR 213,975,140. The total costs required for reclamation of land with an area of 13 Ha are IDR 893,261,300.
Co-Authors Armansyah Putra Sinulingga Bahri, Alim Delita Ega Andini Dimas Pangestu Eddy Nurtjahya EPSB Taman Tono Ferdinand De Lessep Samosir Fitra Adreansyah Guskarnali, Guskarnali Haslen Oktarianty Indra Ambalika Syari Irma Akhrianti Irvani, Irvani Ismed Inonu Janiar Pitulima Kartika Kartika Lisa Maulidya Mardiah Mardiah Nadilah Juang Putri Neni Sherina Nur Annisa Pratama Aditya Irawan Rika Favoria Gusa Salsabila Oldia Zahrah Suryani Suryani