scholarly journals PERENCANAAN PROTEKSI KEBAKARAN UNIT KOMATSU WA600-3 DENGAN FIRE SUPRESSION

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Harianto , ◽  
Budi Hartadi ◽  
Firda Herlina
Keyword(s):  
Wheel Loader ◽  
Fine Coal ◽  
Stock Pile

Pada aktivitas pertambangan tidak luput dari jam operasional yang tinggi di daerah batubara dan suhu di sekitar mencapai 34o celsius yang berpotensi menyebabkan kebakaran pada unit komatsu WA600-3 (Wheel Loader). WA600-3 beroperasi di stock pile batubara menyebabkan panas berlebih (overheat) karena suhu di sekitar stock pile ataupun panas dari kebocoran sistem hidrolik yang menyebabkan menempelnya fine coal yang menyebabkan kebakaran. Penambahan proteksi kebakaran fire supression tipe LOP (Lose Of Pressure) dapat meminimalkan kerusakan dan kerugian pada saat terjadi kebakaran di PT. Kalimantan Prima Persada site Rantau. Sistem ini sangat efektif untuk mencegah unit terbakar karena aktif dengan suhu kerja (160 – 180o Celsius) pada detection tubing saat terjadi kebakaran dan juga bisa di aktifkan secara manual lewat knob internal actuator atau external actuator.Kata Kunci           : Kebakaran, Fire supression

Production of fuels on the basis of sewage sludge through conditioning using high calorific value fractions

2008 ◽  
Vol 3 (1) ◽  
Author(s):  
Karl-Georg Schmelz ◽  
Anja Reipa ◽  
Hartmut Meyer
Keyword(s):  
Sewage Sludge ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Calorific Value ◽  
Fluidised Bed ◽  
Sludge Treatment ◽  
Heating Value ◽  
Fine Coal ◽  
Used Cars ◽  
Plastic Components

Emschergenossenschaft and Lippeverband operate 59 wastewater treatment plants which produce approx. 100,000 Mg TS of sewage sludge each year. Using sludge pressure pipelines, about 60 % of this sludge are transported to the central sludge treatment plant in Bottrop. The digested sludges are conditioned using fine coal and polymers and are dewatered using membrane filters. By adding coal, the heating value of the sludge is raised which enables autothermal combustion of the dewatered sludges in fluidised bed furnaces at the central sludge treatment plant. In order to replace coal, a fossil fuel, as conditioning agent, experiments were conducted using alternative materials with high heating values. The addition of shredder fluff agglomerates proved to be particularly successful. Shredder fluff agglomerates are a residue from the recycling of used cars and are generated in a multistage process (e.g. Volkswagen-SiCon Process) by separating the light shredder fraction (plastic components etc.) from the total shredder fluff. The fibrous material is outstandingly suitable for improving the dewaterability and for sufficiently raising the heating value of the dewatered sludge in order to enable autothermal combustion. Since first experiments showed very positive results, a full-scale long-term test-run will take place in 2007.

Changes of fungal diversity in fine coal gasification slag amendment pig manure composting

2021 ◽  
Vol 325 ◽  
pp. 124703
Author(s):  
Tao Liu ◽  
Mukesh Kumar Awasthi ◽  
Minna Jiao ◽  
Sanjeev Kumar Awasthi ◽  
Shiyi Qin ◽  
...  
Keyword(s):  
Fungal Diversity ◽  
Coal Gasification ◽  
Pig Manure ◽  
Fine Coal ◽  
Coal Gasification Slag

scholarly journals Selective agglomeration of fine coal using a water-in-oil emulsion

2016 ◽  
Vol 110 ◽  
pp. 54-61 ◽  
Author(s):  
Kim van Netten ◽  
Roberto Moreno-Atanasio ◽  
Kevin P. Galvin
Keyword(s):  
Oil Emulsion ◽  
Fine Coal ◽  
Water In Oil Emulsion

Structure Improvement on Dual Variable Gear Shaft of the Transmission for ZL50 Wheel Loader

2012 ◽  
Vol 496 ◽  
pp. 50-53
Author(s):  
Zhan Shun Yin ◽  
Yong Wei Han ◽  
Xi Chun Cai
Keyword(s):  
Heat Treatment ◽  
Service Life ◽  
Dual Variable ◽  
Practical Application ◽  
Hydraulic Pump ◽  
Wheel Loader ◽  
Geometric Tolerance ◽  
Structure Improvement ◽  
Cae Analysis ◽  
Market Feedback

Based on the CAE analysis. The dual variable gear shaft of the transmission for domestic ZL50 wheel loader was redesigned and the processing technology was optimized. The problem of the hardness of the spline which connects the dual variable gear shaft and the working hydraulic pump can not meet the requirements after heat treatment caused by unreasonable design was solved. The problem of the low geometric tolerance and early wear of the spline were solved. After practical application, the market feedback shows that the failure rate, service life and reliability greatly of new designed shaft were enhanced

The Research of the Wheel Loader Working Device

2012 ◽  
Vol 155-156 ◽  
pp. 746-750
Author(s):  
Wei Wei Zhang ◽  
Jun Zhou ◽  
Jian Xin Deng
Keyword(s):  
System Model ◽  
Variable Geometry ◽  
Wheel Loader ◽  
Construction Machinery ◽  
Successful Model ◽  
Safety And Reliability ◽  
Great Pressure ◽  
Working Principle ◽  
Increasing Demand ◽  
Working Device

On the background of increasing demand of construction machinery, the requirement of energy saving without affecting performance, safety and reliability put great pressure on engineering staffs. A comprehensive grasp of the whole system in constitution and working principle exactly helps designers in control and modifications theoretically. Evaluations and discusses in this article are based on a model in Simulation X, and variable geometry parameters in the system model make the matching of desired result easily. A successful model build for working devices of the wheel loader, and all technical result can be acquired easily in the soft ware, the result curves can easily revealed the requirement of optimizing the design of the whole machine.

Development of a characteristic flotation cleaning index for fine coal

1999 ◽  
Vol 55 (3) ◽  
pp. 231-243 ◽  
Author(s):  
M.K. Mohanty ◽  
R.Q. Honaker ◽  
B. Govindarajan
Keyword(s):  
Fine Coal
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