Brief Info : Review MINING OF COAL.KP Owner by Mr Taufik, Location: Sawahlanto, West Sumatra.
LOCATION AREA REVIEW US. ( GCV 6000 to 6600 kcal/kg. )
Location can be in review area of the City of Rice traveled to the location Town Sawahlunto Stock Pile / office with time 1 hour, and from the coal stock pile / office to the front can mine through the mine by the time 30 minutes. Geographically, the location of the mine located on the front coordinates: S 00 º 35 '41.8 "and E 100 º 47' 37.5", and coal stockpile location is at coordinates S 00 º 36 '27.5 "and E 100 º 46' 10.6". This review regional location is the location of the current mine peeling over Burden and active coal mining. STATE OF ENVIRONMENT, conditions at the site Mining is the location of mines, a coal mining area, Surrounded by current mining process. GEOLOGY [ REGIONAL MORFOLOGI REVIEW ] Form of appearance of the landscape or regional slope review unit included a steep hill, with slope ranges from 28 º - 36 º (Van Zuidam, 1983), with a height of 400 to 455 m dapl. Consists of Flakes and Filet, inserts slate, quartzite, silt stone, Flint, lava flows. STRATIGRAPHY : This review area is regionally included in the formation QUARTZ PORPHIRY (QP), which consists of quartz Porfirio with fenokris quartz and feldspar. These formations included in the units of volcanic rocks and intrusions. This review delimit location by 5 formations, namely: MAP GEOLOGY.
MINES FRONT LOCATION ↑ N
REVIEW RESULTS: GEOLOGICAL ASPECTS:
In general morphology observation locations can be classified in terms of morphology, steep hills. Arrangement of rocks in relatively uniform review sites, rock formations litologi constituent dominated by clay stone, sandstone, and coal Napal. In reviewing the location found some Seam coal, with an average slope of 15 º in the direction of the slope.
Coal THICKNESS to between 0.3m to 4.5m, with thick over Burden +/- 20 m, and thick inter Burden of 0, 5 m to 10 m. Calorific value is estimated at over 6000 kcal/kg.
ASPECT MINING: Mining methods used in reviews were method mine location Open (surface mining) which is the main method of mining processes and methods of an Underground Mine (underground mining) as an alternative method in dealing with the production target. miner aspects include.
MINING LAND BELOW.
Underground mining at the site review using the conventional system or the entire mining process using manpower. So the number of their products and require relatively little mining costs are relatively high. Result Production Coal mining results collected at the company's stockpile, and then sold directly, without going through the process of solving crushing, sizing and washing.
Under Ground Mining
REVIEW MINING: Mining study is limited scope that have been discussed and are being undertaken at the site and review other alternatives in the mining process, namely:
Mining: Morphological conditions, topography, sediment litologi and circumstances include the shape and distribution of coal deposits and the quality of the basic methods used (surface mining) and Underground Mining methods, as well as a manufacturing base in mine design. Paring over Burden. Paring over Burden performed using breaker unit 1, unit 1 back hoe excavators and dump trucks 2 units long lead stripping process. To speed up the process of stripping, the addition of heavy equipment into the appropriate alternative in accelerating the process of stripping over Burden. Mining Activities: Use of Underground Mining methods as an alternative to accelerate the production is very appropriate. Use of Blasting in the process of disposing of coal from its mother would be very supportive of increased production. And the use of conveyor belt in the front carriage of the mine until the exit of the tunnel will also be very helpful in increasing production. Coal Mining Production : At the time of the review, coal is not mined through a process of harmonization and laundering measures. But the direct production of coal sold. This leads to low quality and selling value of coal production. To improve the quality of coal production, uniform size and washing (crushing and washing) should be done. This will improve the quality and selling value of coal production. Transporting coal from the stockpile to the port :At the time of the review, coal sales includes only the local market. With the increase in quantity and quality of coal production, it is possible to follow the international market. Mileage from the stockpile to the port of teluk bayur is 125 km. This distance away making the cost of transporting coal from the stock pile high relative to the port.
CONCLUSIONS : Aspects of Geology: Morphological observation area including the steep hills. In reviewing the location of the encounter some Seam coal, with heavy between 0.3 m - 2.5 m, with an average slope of 15 º. Thickness over Burden + / - 20 m, and the thick inter Burden between 0.5 m - 10m. Calorific Value is estimated over 6000 to 6400 kcal/kg. Aspect Mining : To increase the quantity and quality of production, we recommend. Detailed exploration, aimed to determine the amount and form of the deposit, which can be made geological model. Addition of dig-loading devices, intended to accelerate the process of stripping over Burden. The use of blasting system (Blasting) in the release of coal from the parent rock, intended to increase the number of products. Use of Belt conveyor, intended to accelerate the transportation of coal from mines to the front out of the tunnel. Use of Crushing and washing, intended to uniform size and separation of coal from impurities, so the quality of coal production will increase.