argyle stripping ratio

Mining and Stripping of Open Pit | SpringerLink

Download reference work entry PDF. Mining and stripping of open pit is the method of stripping rocks and mining ores from open-pit mine according to a certain mining order. In open-pit mining, there is little difference between the process of stripping rock and mining ore. The equipment on a working bench can be used for both mining and stripping.

3.2.6: Maximum Allowable Stripping Ratio (SRmax)

You will recall that the maximum allowable stripping ratio, SR max, also called break-even stripping ratio, is the maximum amount of overburden/waste that can be extracted per unit of ore at the economic …

Chapter 23 Peripheral Vascular Surgery Flashcards | Quizlet

The largest vein in the body; runs alongside the aorta. Inferior mesenteric. Unpaired artery arising anteriorly from aorta just above the bifurcation; supplies lower abdominal organs. External iliac. Arteries that become the femoral arteries as they exit the pelvis. Study with Quizlet and memorize flashcards containing terms like T, T, F and more.

Task 3.14.1 Evaluation of stripping techniques

To calculate the effective stripping ratio of each coal seam see Figure 1. The effective stripping ratio is derived from dividing a coal seam overlaying waste material thickness in meters by the coal seam thickness in meters. List the depth from surface to the top of each coal for the depth below surface.

argyle stripping ratio

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Rock-to-Metal Ratio: A Foundational Metric for …

The quantity of ore mined and waste rock (i.e., overburden or barren rock) removed to produce a refined unit of a mineral commodity, its rock-to-metal ratio (RMR), is an important metric for understanding mine wastes and environmental burdens. In this analysis, we provide a comprehensive examination of RMRs for 25 commodities for …

Production Stripping Ratio

Stripping ratio is the ratio of the volume of waste rock stripped off to the volume of ore exploited during the process of surface mining. It indicates the volume of waste rock required to be stripped for mining per cubic ore. Stripping ratio (see Fig. 1) is an important technical-economic indica-tor in open-pit mining, which reflects the eco ...

IUPAC

This term is usually defined as the inverse ratio to the distribution ratio, i.e. in aqueous-organic systems the aqueous phase concentration of solute is the numerator and the organic phase concentration is the denominator. ... Citation: 'stripping ratio' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and ...

argyle ratio de stripping

argyle ratio de stripping Lecture 9 Absorption and stripping (1) • Because stripping is not perfect, recycled absorbent contains solutes (absorbates) Absorption Factor & Stripping Factor • Absorption factor, A = L/(KV) Component A K-value Water 89.2 0.031 Acetone 1.38 2.0 Oxygen 0.00006 45,000 Nitrogen 0.00003 90,000 Argon 0.00008 35,000

(PDF) Open Pit Mining

Calculate the maximum stripping ratio if the total cost of production (excluding overburden removal) is $5.90 per ton of ore and overburden removal costs are $0.3 per ton of waste. Assume copper ...

(PDF) Transition from Open-Pit to Underground as a New …

The first method for determining transition depth from open-pit to underground was the. "Allowable Stripping Ratio", which is a relation be tween the exploitation cost of 1 ton of ore in ...

3.2.5: Instantaneous Stripping Ratio | GEOG 000

The Instantaneous Stripping Ratio (ISR) is the stripping ratio for a given push back, where a tiny slice of material, i.e., ore and/or waste, is removed from a pit wall. This …

Argyle Diamond Mine Open Pit

Argyle is the world's largest producer of natural diamonds and produced over 40 million carats in 1993 from seven million tonnes of lamproite ore ... encompasses 120 Mt ofore and 315 Mt of waste at a stripping ratio of 2.6: I, and will extend the mine life to around the year 2004. Studies have also been initiated to review optimwn pit

(PDF) ANALISIS KORELASI STRIPPING RATIO DAN OVERBURDEN RATIO

Perhitungan Stripping Ratio dan Overburden Ratio Volume overburden dan cadangan batubara yan g dihitung dari ketiga batas pit (F -20, F-30, F-40) dengan

Apa Yang Dimaksud Dengan Break Even Stripping Ratio?

Pengertian Break Even Stripping Ratio. Break even stripping ratio adalah ukuran efisiensi tambang yang digunakan untuk menentukan rasio volume tanah penutup yang harus dihapuskan untuk menghasilkan satu unit bahan tambang yang diinginkan. Dalam industri pertambangan, stripping ratio didefinisikan sebagai perbandingan …

Overall slope angle and mine depth for an open …

The stripping ratio increases when mine goes deeper while the amount of recovered ore remains constant in inclined deposits. In this instance, the amount of overburden increases as well. Also, as ...

Stripping ratio | mining | Britannica

Other articles where stripping ratio is discussed: coal mining: Choosing a mining method: …calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost of …

Production Stripping Ratio

Stripping ratio is the ratio of the volume of waste rock stripped off to the volume of ore exploited during the process of surface mining. It indicates the volume of waste rock …

Chapter Open Pit Mining

is defined as the stripping ratio. Stripping ratios of 2:1 up to 4:1 are common in large mining operations. Ratios above 6:1 tend to be less economically feasible depending on the type of ore extracted. Once removed, overburden can be used for road and tailings' construction or may have a non-mining commercial value as a backfilling material.

OPTIMASI STRIPPING RATIO DENGAN METODE DISCOUNTED CASH …

Tujuan penelitian ini yaitu untuk menentukan Stripping Ratio Optimum yang akan memberikan keuntungan terbaik menggunakan metode discounted cash flow sehingga batas penambangan optimum (Ultimate Pit Limit) juga dapat ditentukan. Optimasi ini dilakukan dengan men-generate data variasi Stripping Ratio yang menggambarkan …

Lecture 7c Calculating Stripping Ratios for

Numerical Calculation of. Stripping Ratios. Average End Area from Topo. • Use a digitizer or Autocad Digitizing. Function. • 1700 ft Contour Area is 53.452,860 ft2. • sits directly above coal seam - half way. down to next slice is 0. • sits 50 ft below 1750 ft Contour Area halfway up to next slice is 25 ft.

Stripping Ratios: What are They and Why are They Important

Calculating stripping ratios and determining profitability. At their most basic, strip ratios may be calculated by dividing overburden thickness by ore thickness. For …

Stripping Ratios, Pit Limits & Cutoff Grade Optimization

This requires the stripping of: 2A5 = (150)2 -(125)2 = 6,875 ft2 The instantaneous stripping ratio is: SR (instantaneous) = 6,875 = 1.375 5,000 The overall stripping ratio with bench 8 removed is: SR (overall) = 22,500 = 0.60 37,500 4 Bench 9 For bench 9: A8 = 5, 000 ft2 2A7 = (175)2- (150)2 = 8,125 ft2 The instantaneous stripping ratio is: SR ...

Solved Calculate the breakeven stripping ratio (BESR) in

Question: Calculate the breakeven stripping ratio (BESR) in mining and processing a 0.60% copper ore deposit given the following information: (3 points) Selling price of copper in concentrate: $1.63/kg Surface mining costs: $6.80/ton Surface stripping costs: $7.50/ton. Overall (Milling & Smelting) recovery: 92%.

Argyle Diamond Mine, Kimberley, Australia

Diamond production at Kimberley's Argyle mine . Since coming into operation, Argyle has produced more than 670mct of diamonds, with an average …

Stripping Ratio in Open-Pit Mining, Types of

Stripping ratio is the ratio of the volume of waste rock stripped off to the volume of ore exploited during the process of surface mining. It indicates the volume of …

Cara Menghitung Stripping Ratio

Stripping ratio dapat dihitung dengan cara menghitung volume overburden, volume batubara, dan kemudian membaginya untuk mendapatkan nilai stripping ratio sesuai dengan rumus yang telah dijelaskan di atas. Penutup. Demikianlah pembahasan tentang cara menghitung stripping ratio secara lengkap. Dengan mengetahui stripping …

Stripping Ratios: What are They and Why are They Important?

April 10, 2018. A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also known …

Apa itu stripping ratio? Pengertian stripping ratio dan …

stripping ratio (nisbah pengupasan) : Perbandingan antara jumlah volume lapisan penutup yang perlu disingkirkan ( dalam meter kubik) dan atau ton bahan galian yang ditambang. stripping ratio (SR) : Perbandingan jumlah volume batuan (OB, waste) yang harus dibongkar untuk mendapatkan sejumlah (ton) mineral/bahan tambang (Coal â€" Ore ...

Stripping Ratios: What are They and Why are They …

A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. Put simply, it represents the amount of waste material, also known as overburden, that must ...