ANALISIS MANAJEMEN STOCKPILE BATUBARA UNTUK MEMINIMALISIR TERJADINYA SWABAKAR DI AREA COAL CRUSHING PLANT (CCP) PT BANYAN KOALINDO LESTARI MUSI RAWAS UTARA, SUMATERA SELATAN

WARDANA, YUDHA RIZKI (2023) ANALISIS MANAJEMEN STOCKPILE BATUBARA UNTUK MEMINIMALISIR TERJADINYA SWABAKAR DI AREA COAL CRUSHING PLANT (CCP) PT BANYAN KOALINDO LESTARI MUSI RAWAS UTARA, SUMATERA SELATAN. Other thesis, UPN "Veteran" Yogyajarta.

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Abstract

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SUMMARY
The research was conducted at PT Banyan Koalindo Lestari in the CCP
(Coal Crushing Plant) area which has 2 stockpiles, namely ROM stockpile and
product stockpile. The purpose of the research was to determine the technical
stockpiling and unloading in the stockpile area, the application of the FIFO (First
In First out) principle based on the amount of coal (in and out) and stockpile
capacity, as well as efforts to improve stockpile management and efforts to minimize
the occurrence of self-ignition.
Based on the research results in February and March 2023, coal in ROM
stockpile exceeded capacity by 49.69% in February and 56% in March from the
stockpile capacity of 60,000 tons. In the product stockpile, coal fills less than 60%
of the stockpile capacity, which is 150,000 tons. The stockpile in ROM stockpile has
the highest height of ± 14 m, the stockpile in Product stockpile has the highest height
of ± 12 m, with the angle of repose of the stockpiles of both stockpiles still exceeding
the angle of repose of coal which is 38º. In both stockpiles, the outgoing coal value
is less than the incoming and stockpiled coal, thus causing longer coal stockpiling
time. The pattern of coal stockpiling and unloading is not running well. The FIFO
principle cannot work and tends to apply the LIFO (Last In First Out) principle.
These things cause self-heating and self-burning in coal stockpiles.
Based on these problems, improvement efforts were made by improving the
dimensions of the stockpiles in ROM and product stockpile with an angle of repose
≤ 38º and a maximum height of 8 m. The capacity after improvement was obtained
to be 48,666.06 tons for ROM and 78,189.85 tons for product stockpile. In addition,
the pattern of stockpiling in both stockpiles is in the direction of stockpiling to make
it easier to distinguish between old and new stockpiles and minimize wind exposure
to the stockpile. Strive for the FIFO principle to always be implemented to avoid
stockpiling coal for a long period of time. To overcome overcapacity in ROM, it is
necessary to rehandle old coal stockpiles to be crushed and stockpiled by
optimizing the capacity of the product stockpile area. In order to optimize capacity,
it is necessary to arrange product stockpiles using excavators and bulldozers.
Efforts to minimize self-ignition are carried out by compacting the stockpile after
stockpiling and dismantling activities. In addition, regular temperature checks are
also carried out to monitor changes in coal stockpile temperature.

Item Type:	Thesis (Other)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	05 Oct 2023 02:15
Last Modified:	05 Oct 2023 02:15
URI:	http://eprints.upnyk.ac.id/id/eprint/37828

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