HISYAM, ARDY FAHRUDIN (2013) KAJIAN TEKNIS UNIT PEREMUK BATU ANDESIT DALAM PENCAPAIAN SASARAN PRODUKSI 300 TON/HARI DI UD. MUNCUL KARYA KULON PROGO YOGYAKARTA. Other thesis, UPN "VETERAN" YOGYAKARTA.
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Abstract
Pabrik peremuk batu andesit UD. Muncul Karya berlokasi di Desa Wijimulyo,
Kecamatan Nanggulan, Kabupaten Kulon Progo. Kegiatan peremukan batu andesit pada unit
peremuk terdiri dari 2 tahap, yaitu jaw crusher I dan jaw crusher II. Saat ini pabrik peremuk
hanya mampu memproduksi batu andesit pecah sebesar 225,382 ton/hari dengan ukuran (-
30mm+ 20 mm) sebesar 73,325 ton/hari (32,53%), (-20mm+ 10mm) sebesar 75,965 ton/hari
(33,71%), (-10mm+ 5mm) sebesar 52,386 ton/hari (23,24 %), (-5mm)sebesar 23,706
ton/hari (10,52%)
Target produksi yang ditetapkan yaitu sebesar 300 ton/hari dan untuk presentase
material yang diinginkan dengan ukuran (-30 mm+ 20 mm) sebesar 90 ton/hari (30%), (-20
mm +10 mm) sebesar 90 ton/hari (30%), (-10 mm + 5 mm) sebesar 60 ton/hari
(20%), (-5 mm) sebesar 60 ton/hari (20%).
Untuk mencapai sasaran produksi yang ditetapkan maka perlu dilakukan evaluasi
terhadap kinerja unit alat peremuk batu andesit, dalam penelitian ini perbaikan terhadap
proses produksi unit alat peremuk. Perbaikan proses prosuksi dilakukan dengan cara
1. Perbaikan pengaturan kerja wheel loader
Dilakukan dengan mengatur penggunaan wheel loader sesuai dengan fungsinya masingmasing
yaitu satu wheel loader sebagai alat muat memasukan umpan ke hopper dan satu
wheel loader lagi sebagai alat muat material produk ke dump truck konsumen.
2. Penambahan jumlah umpan ke hopper
Penambahan jumlah umpan ke hopper sebesar 11,055 ton/jam. Sehingga jumlah total
produk batu andesit setelah perbaikan sebesar 44,445 ton/jam.
3. Pemasangan Grizzly feeder
Pemasangan grizzly feeder dilakukan untuk mengatur keluarnya material dari hopper
menuju jaw crusher. Grizzly feeder yang digunakan memiliki lubang bukaan sebesar 100
mm, sehingga produk oversize dari grizzly feeder (+100)mm akan menjadi umpan jaw
crusher I dan produk undersizenya menjadi umpan jaw crusher II.
4. Perubahan settng jaw crusher I dan jaw crusher II
Perubahan setting yang dilakukan yaitu :
a) UntukJaw CrusherI setting berubah dari 70 mm menjadi 60 mm.
b) UntukJaw CrusherII setting berubah dari 20 mm menjadi 22 mm.
5. Perbaikan waktu produksi efektif
Dengan melakukan perbaikan waktu produksi efektif ini didapat perubahan waktu
produksi hari menjadi 7,15 jam per/hari.
Dengan upaya-upaya perbaikan yang dilakukan diatas, maka untuk masing-masing
produk yang dihasilkan setelah perbaikan adalah (-30 mm+ 20 mm) sebesar 98,883 ton/hari
(30,6%), (-20 mm +10 mm) sebesar 98,089 ton/hari (30,3%), (-10 mm + 5 mm) sebesar
63,668 ton/hari (19,8%), (-5 mm) sebesar 62,141 ton/hari (19,3%) dengan efektifitas jaw
crusher I sebesar 34,51% dan jaw crusher II 86,80%.
Dengan mempertimbangkan tingkat efektifitas dari masing- masing jaw crusher,
kuantitas dan prosentase produk yang dihasilkan, maka upaya-upaya tersebut dapat dipilih
sebagai alternatif penyelesaian masalah.
Andesite crusher plant, UD Muncul Karya is located in Wijimulyo village, Nanggulan
subdistrict, in the regency of Kulon Progo. Andesite crushing activities in the crusher unit consist of 2
stages, i.e. the jaw crusher I and the jaw crusher II. Meanwhile, the plant is only capable of producing
shattered andesite as many as 225,382 tons/day. For the measurement of andesite as big as (-30
mm+20mm)the plant could produce as many as 73,325 tons/day or (32.53%) for that of (20 mm-10
mm); it produces 75,965 tons/day or (33,71%), for that of (5 mm-10 mm); it produces 52,386 tons/day
or (23,24%) for that of (-5 mm), it produces23,706 tons/day or (10,52%).
The target of production that was set amounted to 300 ton/days and for the percentage of
material desired, i.e. those with the measurement of (-30 mm+ 20 mm) the production target was as
many as 90 tons/ day or (30%), those of (-20 mm +10 mm) would make its production target as many
as 90 tons/day or (30%), those of (-10 mm + 5 mm) would make it as many as 60 tons/day or (20%),
(-5 mm) would make it as many as 60 tons/day (20%)
To reach the target of production that was set, then the evaluation on unit performance of
andesite crusher instrument need to be implemented. In this research, the follow up was in the form
ofproduction process of crusher instrument unit. The improvement of production process was carried
out through:
1. The improvement of wheel loader work setting
It was carried out by regulating the use of wheel loaders in accordance with their functions
those are one wheel loader as a loading tool for entering fed to the hopper and one other
wheel loader as a loading tool of product material transferred to the consumer dump truck.
2. The addition of the quantity of feeder into hopper
The addition of the quantity of feeder into hopper amounted to 11,055 tons/ hour. So the total
sum of andesite products after the improvement amounted to 44,445 tons/hour.
3. The installation of Grizzly feeder
The installation of grizzly feeder was carried out to regulate the release of material from
hopper to jaw crusher. Grizzly feeder used having opening holes of 100 mm so that the
oversize products of grizzly feeder ( + 100 ) mm would be a fed to the jaw crusher I and its
undersize products would be a fed to the jaw crusher II.
4. The setting change of jaw crusher I dan jaw crusher II
The setting change conducted were :
a) On Jaw Crusher I the setting was changed from 70 mm into 60 mm
b) On Jaw Crusher II the setting was changed from 20 mm into 22 mm
5. The improvement of effective production time
The change of day production time to be 7,15 hours per day was obtained by conducting the
improvement of this effective production time.
With all the improvements conducted above, then products produced after the improvement
were : 98,8883 tons/day or ( 30,6 % ) for the product measurement of ( -30 mm + 20 mm ), 10
tons/day or ( 30,3 % ) for the product measurement of ( -20 mm + 98,089 mm ), 63,668 tons/day or
( 19,8 % ) for the product measurement of ( -10 mm + 5 mm ),62,141 tons/day or ( 19,3 % ) for the
product measurement of ( -5 mm ) with the effectiveness rate of jaw crusher I amounted to 34,51 %
and that of jaw crusher II was 86,80 %.
| Item Type: | Thesis (Other) |
|---|---|
| Subjek: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Darsini Darsini |
| Date Deposited: | 10 Jun 2016 06:59 |
| Last Modified: | 10 Jun 2016 06:59 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/3584 |
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