Abstract

Underground mine activities is not detached by mechanical ventilation system for supplying air demand for worker’s breathing, dirty air and toxic gases removing, dust reducing, and heat and humidity controlling. There for makes safer and enjoyable in working. To facility the study of mine ventilation in campus, the simulation study about mechanical underground mine ventilation system was applied. To do this research, the describtion about mechanical ventilation system of underground mine is necersary and also we need pay attention with the parameters in air qualities and quantities controlling witch are not over limit to the limit value (NAB). Describing how to control the air qualities and quantities, the writer got sample as well as PT. AICJ. PT.AICJ’s ventilation system is forcing system with some parameter like air velocity, wet and dry temperature, relative humidity, tunnel dimension, and around of gases concentration in air at mine front. Gases measured to wards the concentration of O2, CO2, CH4, and H2S. In this research, the writer designed and created a simulation of ventilation system, with autoCAD 2014 modeling advises. In the other hand the material that, used for equipment is iron plate 1 mm thickness. Volumetric air flow rate produced by forcing fan (18” diameter size) is 0.23m 3 /second with 26 0 C effectively temperature. Medium air flow rate is 0.24m/second with is 25,3 0 C effectively temperature. High air flow rate is 0,26m/second with 24,7 0 C effectively temperature, while volumetric air flow rate of forcing fan 16” diameter size is o,26 m 3 /second with 24,4 0 C effectively temperature, for exhaust fan (4”size) produced 0,18 m 3 /second volumetric air flow rate with 26,5 0 C effectively temperature . so the simulation equipment ventilation can show measure result by quantity and quality airflow characteristic. Keywords : Ventilation Simulation Equipment, Air Quality, Air Quantity, Ventilation Pressure

Highlights

  • Underground mine activities is not detached by mechanical ventilation system for supplying air demand for worker’s breathing, dirty air and toxic gases removing, dust reducing, and heat and humidity controlling

  • Volumetric air flow rate produced by forcing fan (18” diameter size) is 0.23m3/second with 260C effectively temperature

  • High air flow rate is 0,26m/second with 24,70C effectively temperature, while volumetric air flow rate of forcing fan 16” diameter size is o,26 m3/second with 24,40C effectively temperature, for exhaust fan (4”size) produced 0,18 m3/second volumetric air flow rate with 26,50C effectively temperature . so the simulation equipment ventilation can show measure result by quantity and quality airflow characteristic

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Summary

PENDAHULUAN

Sistem ventilasi pada kegiatan penambangan bawah tanah merupakan hal yang sangat penting, berbeda dengan tambang terbuka, pada tambang bawah tanah ketersediaan udara sangat terbatas. Pada tambang bawah tanah sistem ventilasi sangat berperan penting dalam hal pemenuhan kebutuhan udara pernafasan pekerja, membersihkan udara kotor dan gas-gas beracun, mengurangi konsentrasi debu dan juga mengatur panas dan kelembaban udara di dalam tambang sehingga tercipta kondisi kerja yang aman dan nyaman. Mengungkapkan cara pengukuran kualitas dan kuantitas udara pada tambang bawah tanah PT.AICJ, Mendapatkan parameter apa saja yang diukur pada pengendalian kualitas dan kuantitas udara di PT.AICJ, sekaligus mendapatkan nilai hasil pengukuran dan membandingkannya dengan nilai standar yang ada, Menghasilkan rancangan dan sekaligus membuat alat simulasi sistem ventilasi tambang bawah tanah, untuk pembelajaran mata kuliah ventilasi tambang, serta. Menguji coba alat simulasi sistem ventilasi tambang bawah tanah yang telah dirancang dan dibuat, serta mengungkapkan parameter apa saja yang dapat diperoleh dari alat simulasi tersebut

Pengambilan Data
HASIL DAN PEMBAHASAN
Hasil Analisis Udara pada Alat Simulasi
Hasil analisis Kualitas Udara pada alat simulasi
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