rule of thumb mining cost

Evaluating rules of thumb using conveyor costs - Canadian ...

2020-5-1 · Rule of thumb No. 4 tells us that the cost of purchasing and installing a long conveyor is roughly equal to the cost of developing the opening through which it will operate. But the term “long” is not defined. For consistency, the authors chose to

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Process Equipment Cost Estimating by Ratio and

2012-11-30 · The Rule of Six-tenths Approximate costs can be obtained if the cost of a similar item of different size or capacity is known. A rule of thumb developed over the years known as the rule of six-tenths gives very satisfactory results when only an approximate cost within plus or

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Rules of Thumb Ed 3

2013-5-29 · What is a Rule of Thumb? A definition is necessary that offers good application in the Hard Rock Mining Industry. Webster’s defines a "Rule of Thumb" as follows: 1. "A general or approximate principal, procedure or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate;" 2.

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Rules of Thumb in Pricing and Profitability - IBPAIBPA

2021-11-18 · The 25% of List Price Rule. Another rule of thumb that comes up from time to time appears in packaging or co-publishing deals. The standard formula here is the publisher marketing the book (in the trade) wants to limit cost of product, delivered, to 25% of list. This enables them to assume an average 50% discount (taking into account ...

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COSTS AND COST ESTIMATION Chapter

2019-6-26 · costs and operating costs of apparently similar mines should not unduly influence the estimated capital costs and operating costs of a prospective mining venture. The experienced cost estimator should attempt to visit one or more mines with known similarit­ ies to the prospective mine, so that a judgment may be made as

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Mineral Processing / Metallurgy Rules of Thumb

2015-12-16 · Here is a list of General Rules of Thumb often used in Mineral Processing and Metallurgy:. A concentrator (mill) requires up to 3 tons of water for each ton of ore

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Estimation of production cost and revenue - processdesign

2016-3-11 · A rule of thumb that can be used for preliminary screening of by-products for large plants is that for by-product recovery to be economically feasible the net benefit must be greater than $200,000 a year. A net benefit can be calculated by adding the

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Hard Rock Miner's Handbook

2019-5-15 · Mining industry response to the book continues to be incredible. Thanks in large part to the efforts by John Chadwick of the Mining Journal, infomine, and many other members of the mining community, the Hard Rock Miner’s Handbook has been distributed to over 113 countries worldwide. Web hits and downloads continue as students and

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Profitability and royalty rates across industries: Some ...

2021-10-7 · by the 25 percent rule, although they tend to fall between 25 percent of gross margins and 25 percent of operating margins. Regression analyses indicate that there is a linear relationship between reported royalty rates and various profitability measures, which suggests that the licensing market is efficient and that cost

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Rules of Thumb Ed 3

2013-5-29 · What is a Rule of Thumb? A definition is necessary that offers good application in the Hard Rock Mining Industry. Webster’s defines a "Rule of Thumb" as follows: 1. "A general or approximate principal, procedure or rule based on experience or practice, as opposed to a specific, scientific calculation or estimate;" 2.

Read More

Estimation of the potential production rate ...

2019-6-28 · Estimation of production rate is a problem that has been looked at by many scholars. The most well-known scholar to look at the problem was H. K. Taylor who developed the empirical Taylor’s Rule, which is a rule of thumb that is commonly

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Making the grade: understanding exploration ... -

2017-3-24 · These geometrics can be mined by under-ground mining technologies, and the costs are considerably higher, say $25 to $50 per tonne as a rule of thumb. In this style of mining $100 per tonne gross ...

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Estimating Break Even Mining Costs to Predict Where ...

2018-6-8 · Additionally acquisition costs include 1 power supply unit (PSU) per mining unit which typically cost USD 100 retail. Cooling acquisition costs are assumed to be 5 % of unit costs, therefore USD 40.

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Mineral Reserves, Mineral Resources and Estimation

2018-1-14 · As a general rule of thumb anything from 40 to 80% of a resource will eventually convert to reserves. If you see a figure that is outside of this range the resources were either highly over optimistic or seriously under drawed and both of

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Rules of Thumb in Pricing and Profitability - IBPAIBPA

2021-11-18 · The 25% of List Price Rule. Another rule of thumb that comes up from time to time appears in packaging or co-publishing deals. The standard formula here is the publisher marketing the book (in the trade) wants to limit cost of product, delivered, to 25% of list. This enables them to assume an average 50% discount (taking into account ...

Read More

Estimation of production cost and revenue - processdesign

2016-3-11 · A rule of thumb that can be used for preliminary screening of by-products for large plants is that for by-product recovery to be economically feasible the net benefit must be greater than $200,000 a year. A net benefit can be calculated by adding the

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Why Surface Mine - NMA

2016-8-23 · mining cost, and can sometimes adjust the mine plan to alter the effective mining ratio. Most Appalachian surface mines use combinations of mining methods such as mountaintop removal, area mining, and contour mining where appropriate to develop an effective and economical overall mine plan.

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Equipment selection - QueensMineDesignWiki

2019-6-28 · An industry rule of thumb productivity breakdown for various activities is displayed in Figure 13. Therefore, equipment utilization (EU) is an integral measurement that can not only evaluate mobile equipment performance, but also reduce production

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Repairing vs Replacing - what is your rule of thumb ...

2021-11-7 · It’s now worth $460 if you trade it in to defray the cost of a new phone. The newest iPhones, the iPhone 13, also cost $799. So if you traded in your iPhone 12, the iPhone 13 would cost $339. At this rate, if you bought an iPhone every year for four years, including the

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Estimation of the potential production rate ...

2019-6-28 · Estimation of production rate is a problem that has been looked at by many scholars. The most well-known scholar to look at the problem was H. K. Taylor who developed the empirical Taylor’s Rule, which is a rule of thumb that is commonly

Read More

Estimating Break Even Mining Costs to Predict Where ...

2018-6-8 · Additionally acquisition costs include 1 power supply unit (PSU) per mining unit which typically cost USD 100 retail. Cooling acquisition costs are assumed to be 5 % of unit costs, therefore USD 40.

Read More

Making the grade: understanding exploration ... -

2017-3-24 · These geometrics can be mined by under-ground mining technologies, and the costs are considerably higher, say $25 to $50 per tonne as a rule of thumb. In this style of mining $100 per tonne gross ...

Read More

Estimation of production cost and revenue - processdesign

2016-3-11 · A rule of thumb that can be used for preliminary screening of by-products for large plants is that for by-product recovery to be economically feasible the net benefit must be greater than $200,000 a year. A net benefit can be calculated by adding the

Read More

How to Calculate Machinery Ownership and Operating

2020-10-13 · According to Nebraska Tractor Test data, a general rule of thumb can be applied for estimating the cost of lubrication. For example, the rule of thumb that is applied for power machinery is 15% of fuel costs. For non-power equipment 5% of the purchase price is used. Labor Labor cost is calculated using the cost of labor per hour.

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Guide to machinery costs and contract rates

2009-10-12 · Interest cost = $44,062 x 10% = $4,406 (assuming an interest cost of 10%) Note: Make calculations inside brackets first. Shedding cost . This is the cost associated with having a shed on your property which is used primarily to house your machinery. As a rule of thumb, an annual charge of 0.5%–1% of the purchase price of the machine is

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2019 Pharmaceutical / Biological Facility Cleanroom Cost ...

Clean rooms costs (as a rule of thumb) range between $200 and $550 per Square Foot (footprint). Typically the larger the room size the lower the square foot cost value. Note: costs are based on 10’ floor to ceiling height. Show. 10 25 50 100.

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MINE DEVELOPMENT – ACCESS TO DEPOSIT

2012-9-6 · operating costs. A key consideration is that it is extremely expensive to convert from a ramp to a shaft system, so the mine engineer/planner must consider the entire mineral resource or potential to increase the resource at depth. Figure 1 depicts a typical access strategy for platinum mine where the initial orebody is exploited by means of

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A comparison of strategic mine planning approaches for in ...

2018-3-1 · An additional benefit of lower diesel consumption is a reduction in CO 2 emissions. The 60 MLpa reduction in diesel consumption previously mentioned equates to a reduction of approximately 130,000 tonnes per annum (tpa) of CO 2 emissions .This is approximately equivalent to the removal of 36,000 average passenger vehicles off the road each year .In addition to the reduction of emissions,

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Repairing vs Replacing - what is your rule of thumb ...

2021-11-7 · It’s now worth $460 if you trade it in to defray the cost of a new phone. The newest iPhones, the iPhone 13, also cost $799. So if you traded in your iPhone 12, the iPhone 13 would cost $339. At this rate, if you bought an iPhone every year for four years, including the

Read More