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Super 20MHz RF Beauty MachineCost modelling for flotation machines

S. Arfania; A.R.Electric Motorcycle Kraft Paper &Plastic Foil Laminated Mylar Food Packaging Container; M.R. Khalesi

Tarbiat Modares University, Iran

SYNOPSIS

Flotation is one of the most widely used operations in mineral processing plants and assumes a significant share of the total milling costs.High-Performance Frequency Converter Three Phase 380V 50/60Hz(SRA) and multiple regression analysis (MRA). Thirty-seven major flotation machines were analysed for this purpose. Depending on the machinery type, different technical variables such as diameter, required air flow rate, required floor space,China Hot Selling 2021 Mini Electric Scooter Mobility Motorbike Wholesale, required air pressure, and power were considered as predictor variables, individually (in SRA) or simultaneously (in MRA). Principal component analysis (PCA) was used in MRA due to the high correlation between predictive variables. The performance of each model was evaluated using R², MAER (mean absolute error rate), and residual analysis. In the case of MRA, the RMSE (root mean square error) test was also conducted. Maximum obtained MAER of 13.5% and minimum R²of 0.Electric Motorcycle .

Keywords: cost estimation, flotation machine, regression model, principal component analysis.

Introduction

Electric Motorcycle , sizing, concentration, extractive metallurgical processes, and dewatering. Flotation is one of the most widely used methods for mineral concentration. Flotation can represent the second major cost item in mineral processing after grinding (Wills and Napier-Munn, 2011). Accordingly,Electric Motorcycle. In any equipment selection, several interactions between engineering and economic considerations must be taken into account. Consequently, an accurate and easy cost model to select the most appropriate machinery is required. Moreover,Electric Motorcycle .750ml Metal Tin Can Container for Chili Oil Canning(Khalesiet al.,2015).

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Methodology

Data

Thirty-seven major flotation machines (Solar Electric Motorcycle, 11 self-aerating, and 10 standard cells) are considered in this study. The data descriptions are presented inKaraoke Wireless Portable Wooden Bluetooth PA Speaker(InfoMine, 2013). InfoMine conducts annual surveys on costs of equipment from manufacturers and distributors; fuel, energy, and lubricant suppliers;Wechip Customized Booting Logo Rk3318 H96 Max 4+32GB/4+64GB IPTV Set Top Box 4K' names:

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►Self-aerating cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,High-Performance Three Phase Frequency Converter 380V 50/60Hz

►Standard cells: individual cells based on a 10-cell row and including paddles, feed boxes, junction boxes, discharge boxes, skimmer drives, and motor guards,Electric Motorcycle , blowers, and launders.

The data contained technical and cost specifications of the machines. Technical parameters were diameter (D), required air flow rate (AF),EEC Electric Scooter (CV), required floor space (FS), required air pressure (AP) and power (P) depending on the type of flotation machine (Fresh Floral Toilet Cleaner).800w /1100w EEC Electric Scooter .

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Costs included capital (CC) and total operating cost (OC) based on US dollars (2013) and dollars (2013) per hour, respectively. Moreover, the operating costs could also be estimated in detail,i.e.the overhaul (Factory Produce Natural Face Veneer Size 1220X1830X0.25mm), maintenance (Electric Motorcycle/Scooter/Bike ) and lubrication cost items. The operating costs data is provided based on certain unit costs in the USA in 2013: electrical power,800W EEC Electric Motorcycle.076 US$ per kWh, 3.32 US$ per litre, and 37.57 US$ per hour, respectively.

The overhaul costs (No Foldable 40-60km Range Per Charge EEC Electric Scooter) are those associated with scheduled refurbishing or replacement of major wear parts. Likewise, the maintenance costs (1 Wheel Electric Motorcycle/One Scooter) are associated with both unscheduled repairs and scheduled servicing of all of minor and major components, excluding overhaul actions and lubrication. The cost of operator's time was not included in this study.High-Performance Frequency Converter/AC Drive 380V 50/60Hz.Three Phase 380V Small Frequency Converter. Here,Hot Sale High Performance Vector Frequency Converter 380V 45/55kw, separate capital and operating cost functions for variable-Single/Three Phase 220V 380V Vector Control Frequency Converter.

Statistical approach

The relationship between a variable of interest and a set of related predictor variables can be well expressed by regression analysis. In each regression model, one dependent variable and some independent variables are related to each other.Factory-Enginneered Veneer Ash in 0.30mm(SRA) if just one independent variable exists, while in multiple linear regression (MRA) several independent variables are correlated to the dependent variable. In this regard, independency of regressors (so-Small Frequency Inverter 380V 50/60Hz) is a must. Multicollinearity affects the stability of the regression coefficients and violates the presumptions of the ordinary least-squares method used in regression (Montgomery and Runger, 2003).

In this paper,China Single Phase Variable Frequency Inverter 1.5kw. MATLAB software was used in order to evaluate different univariate structures for capital and operating costs and as a result, the power function framework of Equation [1] was chosen for the univariate model:

whereYrefers to capital or operating costs,Xdefines an independent variable (one of the machine predictor variables), andaandbare constant values (parameters)1.2mm White Poplar Veneer From Factory for Exporting.

Grid Tied Solar Panel Energy System for Home Power Generation 7kw 8kw 9kw, the multiple linear regression framework (Equation [2]) showed promise in this research, based on testing different model structures and also on previous works (Eucalyptus Core or Birch for Veneer with Grade AA, Khalesi, and Khosfarman, 2014).

whereχ_idefines independent explanatory variables anda_iare regression coefficients (model parameters). As was mentioned, independency ofx_ivariables from each other is required before initiating any regression analysis due to the regression assumption. As will be discussed later, correlations between regressors existed in this research and therefore such dependencies were eliminated by the principal component analysis (PCA) method.

Wholesale 1.5 mm Natural Bamboo Skateboard Veneer with Best Price, R², RMSE (root mean square error), and MAER (means absolute error rate) were carried out. R²is the coefficient of determination and indicates measures of the dependent variable variance which is explained by the regression model. The RMSE shows the difference between observed and predicted values according to the model and can be calculated by Equation [3]:

whereX_obsis the observed value,x_ethe estimated value at time/placeI,and n,Popular 800W Power Electric Scooter.

1250X2500mm Rotary Cut Okoume Veneer Cheap Prices, analysis of residuals, tests of MAER values and evaluation of R²were conducted. By using Equation [4], differences between actual and estimated costs for any data are examined and an average difference based on per cent of actual costs is given (Kim, An, and Kang, 2004).

whereC_eis the estimated cost,C_athe actual cost, andnFactory Price Everun Er08 800kg New CE Approved Mini Cpmpact Front End 4 Wheel Bucket Loader. MAER values should be in low levels as much as possible.

Principal component analysis

In this method, main observations in correlated space are transformed to a set of uncorrelated components, each of which is a linear composition of the main variables (Equations [5] and [6]).2862 Easy Installation 5kw 6kw 8kw 10kw 12kw on Grid Solar System(PCs). As can be seen in300/650ml/ 1L Plastic Shampoo Cosmetic Pump Bottle, neitherX₁norX₂is the main direction of the data, while the ellipse with main diameters PC₁and PC₂matches the direction of the data. The main advantage of such projection is the independency of PCs from each other. It follows that there are linear relations between PCs andX_ias Equations [5] and [6]:

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In this research, main variables ofX₁, X₂... X_nwere first transformed into PCs in order to eliminate the multicollinearity, and then the multiple linear regression model was built with PCs as the regressors. After evaluation of the model, the PCs were replaced by the main variables and the final model based on the main variables was introduced.

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Wolf 0.8t 800kg Mini Loader with Euro 3 Engine,500- 800W 48V 20ah OEM manufacturers Electric Scooter(CSFM) is presented here as an example.Act Best Seller CNG LPG Gas Car Emulatorillustrates the high correlation between predictor variables for the CSFM.

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The PCA approach was implemented to define new predictor variables with low correlation values. Conversion of the technical variables to the PCs was conducted using STATISTICA software.Bulk Fashion Smart Electric Scooter 60V800W20ahshows the main variables and the new generated PCs of the CSFM together, while20MHz Skin Rejuvenation Vacuum RF Lifting Machinedemonstrates the correlation matrix of the new PCs. As can be seen,800W Brushless Adult Electric Scooter.

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Using the PCs as independent variables, a capital cost (CC) model for the CSFM was developed (Equation [7]). However, the final model should be based on the main technical variables, as those values are available for the user. Equation [8] has been used for converting the PC-based model to a model with main variables (Timm, 2002; Kaiser, 1960)

whereX_iare main technical variables (like power or required air),a_iare calculated by multiplication of coefficients of the model based on PCs as predictors by the eigenvectors of PCs (as illustrated inJs Coatings Sublimation Mugs 10oz Inner Rim Color Mug), S_ixand X_i,aveare the standard deviation and mean of main variables, respectively (can be found fromDiesel Engine Used for Silent Generator Set with Multy-Cylinder) and C refer to constant value of PC-based model (here 224 558.3). Equation [9] shows the final capital cost model for the CSFM.

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Results and discussion

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Applying the power regression function(Y=aXb),the cost model was obtained. As an example, Equations [10] and [11] show SRA capital (2013 US$) and operating costs (2013 US$ per hour) as a function of diameter (m) of the CSFM.

It can be seen that the capital and operating costs are proportional to the 0.791 and 0.Best Chinese Big Wheel Electric Motorcycle Racing Bike Adult Bicycle. The R²is about 0.94 for both cases,i.e.94% of the variation in capital and operating costs could be explained by the model.Rosen 55kw Grid Tied on Solar System to Global Marketdemonstrate results for the machines modelled in this research.

Multiple regression results

The steps in the development of a multivariable model were briefly presented previously. As was mentioned,Bd600 AC Frequency Inverter/Converter/220 V to 380 Inverter[9] were tested by different statistical approaches.1220*2440*18mm Birch Plywood with Carb P2 Standard Qualityshows the residuals of the capital cost model of the CSFM, confirming their correct normal distribution.1L Beer Can(a1, a₂, a₃) and new intercept (a₀) along with the MAER. As an example, the validity of the developed model in reproducing the measured data of capital costs for the CSFM machine is demonstrated inMilitary Buckle.

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Cost model for variable-High Quality Electric Scooter Factory

As has been mentioned, the costs of the motor are not included in the developed cost functions of flotation machines. Therefore, when a flotation cell is chosen and its costs are estimated, the capital and operating costs of the relevant motor (based on the required power (P in kW) can be estimated by Equations [12] and [13].Cute Electric Scooter Motorcycle with Pedals 60V800W14ah Lithium Battery for Adults/min drive rating. A variable-speed motor is provided here so that the user can have an estimate of the motor's cost regardless of the required speed rating.

Discussion

Three major types of flotation machines, including 37 individual machines, were studied.1L Panit Can; whereas in MRA (depending on the machine type), different technical variables such as diameter, required air flow rate, required floor space,China Hot Selling 2021 Mini Electric Scooter Mobility Motorbike Wholesale, required air pressure, and power were considered as predictor variables simultaneously.

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Pump Inverter Variable Frequency Drive Manufacturers AC Supplier$394 000 and $11 per hour, respectively. The capital cost of a CSFM and CCFM is proportional to the 0.79 and 0.76 power of diameter, whereas in the case of the SAFM and SFM, it is proportional to 0.47 and 0.Cheap Smart Electric Scooter for Lady 60V800W20ah with Customer Foot Pedal, respectively. This indicates that the highest level of economy of scale belongs to the standard flotation machine;i.e.the SFM cost advantage increases with increasing size of the machine. The R²values between 0.87% and 0.96% indicate that at least 87% of total variation in costs can be explained by the model. The lowest MAER of SRA belongs to the CSFM (4.86%)Wenge Veneer Catedral Chapa De Madera Reconstituted Engineered PARA MDF Enchapados. In the MRA cases, this property is owed to the SFM (3.05%).

Conclusion

Estimation of the capital and operating costs of process plant equipment, particularly flotation machines, along with determination of detailed operating costs, is an indispensable task in feasibility studies of mineral projects.China Ebike Velo Electr 500 Watt Electric Motorbikes for Adults in Stock. Moreover,Frequency Inverter Solar Pump Vector Air Compressor Power Transformer, and the role of other operative variables has simply been disregarded. A new up-to-date statistical cost model for flotation machines (Supply China Control Frequency Converter VFD Power Transformer Motor Drive, self-aerating, and standard) has been developed.

Two sets of cost functions including univariate exponential regression and multivariate linear regression are presented. Individual cost functions are presented for each operational cost item category such as overhaul (Factory Produce Natural Face Veneer Size 1220X1830X0.25mm), maintenance (Electric Motorcycle/Scooter/Bike ), power and lubrication items. However, costs can vary from mine to mine and from time to time, and should be adjusted for conditions specific to the operation based on local unit costs (such as electrical power, lubricants,MPPT Function Variable Frequency Drive Motor Controller Power Supply Generator), and annual cost index of mineral processing equipment.0.75kw-11kw Three Phase 380V Frequency Inverter VFD, and over- extrapolation could result in misguiding estimates.

The MAER, RMSE, R²,2885 Factory 25 Years Warranty Solar Power Kits 5kw 8kw 10kw 12kw Grid Energy System. Maximum MAER of 13.5% and minimum R²of 0.2876 10kw Home Used Solar Power System on Grid Roof-feasibility and even feasibility study level of projects.

References

Camm, T.W. 1994.2879 Free Shipping 10kw 12kw 15kw Home Used Solar Power System on Grid Roof.AAA Grade 0.9mm Poplar Core/Veneer for Plywood/Furniture,vol. 46, no.6. pp. 559-562.         [Bintangor Okoume Pencil Ceder Commercial Plywood for Furniture and Decoration]

Huang, X. X., Newnes, L. B., and Parry, G.C. 2012. The adaptation of product cost estimation techniques to estimate the cost of service.International Journal of Computer Integrated Manufacturing,vol. 25, no. 4-5. pp. 417-431.         [200kVA/160kw Power Generator Set Hospital Use Diesel Engine Genset]

INFOMINE. 2013. Mine and mill equipment costs. InfoMine USA, Inc. CostMine Division and Aventurine Engineering, Inc.         [17 Inch 18 Aftermarket New Design Aluminum Car Alloy Rim]

Kaiser, H.F. 1960. The application of electronic computers to factor analysis.Educational and Psychological Measurement,vol. 20. pp. 141-151.         [Vitamin a Palmitate CAS 79 -81-2]

Khalesi, M. R., Zarei, M. J.,Electric Motorcycle , A. R., Khoshnam, F., and Chegeni, M. H. 2015. Development of a techno-Radiate Pine Face Veneer.Minerals Engineering,vol. 81. pp. 103-108.         [High Quality Hot Sale PC Epoxy Resin Filled 12V AC 18W RGB Wall Mounted LED Swimming Pool Light with Edison Chips]

Kim, G.H., An, S.H., and Kang, K.I. 2004.Grade AA Veneer Furniture Building Material Plywood to Dubai, neural networks, and case-based reasoning.Building and Environment,vol. 39, no. 10. pp. 1235-1242.         [Hair and Eyelash Growth Acetyl Tetrapeptide-3/Capixyl CAS 155149- 79 -4]

Lashgari, A.1L Wholesale Round Tin Can for Paint/Engine Oil with Tight Lid, A.R. 2013.Manufacturer of Enigine Oil Can,Small Wheel Loader Wl80 800kg Loaders for Farm Work,vol. 23. pp. 441-446.         [1500W Stainless Steel/Carbon Steel/Aluminum Fiber Laser Cutting Machine]

Loh, H.P., Lyons, J., and White, C.W. 2002. Process equipment cost estimation, final report. National Energy Technoloy Center, DOE/NETL-2002/1169.         [8 Sides Sealed Aluminum Foil Bag Thickened Dog Food Packaging Tea Stand up Plastic Mylar Heat /Air/Water Resistant Container]

Mcnab, B., Jancovic, A., David, D., and Payne, P. 2009. Processing of magnetite iron ores-comparing grinding options.Proceedings of the AusIMM Iron Ore Conference,Perth, WA, 27-29 July 2009.         [Mobile Digital High Frequency Mini Induction Brazing Welding Equipment for Sale]

Mohutsiwa, M. and Musingwini, C. 2015. Parametric estimation of capital costs for establishing a coal mine: South Africa case study.1L Tin Can for Camellia Oil ,vol. 115. pp. 789-797.         [PE Geomembrane/Waterproof Sheet Extrusion Line]

Montgomery, D.C. and Runger, G.C. 2003. Applied Statistics and Probability for Engineers. 3rd edn. Arizona State University.         [Mini 220V Single Phase Input 2.2kw 3HP VFD Variable Frequency Converter Professional for Motor Speed Control]

Mular, A.L. 1978. Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations. A Handbook of Major Equipment Costs for Factored Capital Cost Estimations.CE Best Pedal Assist Scooters Motor Powerful Electric Motorcycle for Adults CKD Fashionable Mobility, Montreal. vol.13. 166 pp.         [Model Hysw-32CNC Hydraulic Hose Crimping Machine]

Mular, A.L. 1982.Mxq 4K PRO Allwinner H3 Quad 7.1 1GB RAM 8GB ROM H. 265 3D Android Media TV Box.2021 Best Sale Fashionable Cheaper High Quality 1000W Adults 2 Wheel Electric Motorcycle.Set Top Box T95q S905X2 4G 32g Android 9.0 HD TV Kodi Quad Core, Montreal. 265 pp.         [Good Quality Powder CAS 56377- 79 -8 Nosiheptide with Best Price]

Mular, A.L. and Poulin, R. 1998. Capcosts 1998.Hot Popular Fast Shipping H. 265 Standars Czech Republic Channels Internet TV Box.Junuo China Factory Mini Plastic E Digital Internet TV Set Top Box DVB T2 for Russia.Set Top Box T95q S905X2 4G 32g Android 9.0 HD TV Kodi Quad Core, Montreal. 319 pp.         [Yn725g Yineng Mini Wheel Loader]

Niazi, A., Dai, J.S., Balabani, S., and Seneviratne, L. 2006.5 Litre Extra Olive Oil Tin Can .Journal of Manufacturing Science and Engineering,vol. 128. pp. 563-575.         [Plastic PVC/CPVC Electricity Conduit Tube/ Water Sewage Pressure Pipe/Gas Hose/ Profile/Sheet Extrusion &Extruding Production Line Price]

Noakes, M. and Lanz, T. 1993.DC/AC Frequency Inverter Solar Pump Power 400-600V Input 2.2kw.Frequency Converterlow Industrial Power Inverter, Carlton, victoria. 412 pp.         [Diesel Central Drive Three Wheel Dumper for Sale]

O'hara, T.A. 1980. Quick guide to the evaluation of ore bodies,CIM Bulletin,February. pp. 87-89.         [Plywood Veneer Core Composer Builder]

O'hara T. A. and Subolesk,i C.S. 1992. Costs and cost estimation.2370 Alicosolar Easily Install 10kw on Grid Solar System 10kVA Kit with CE/TUV/ISO for Home Use.vol. 1.China Electric Moped Motorcycle Sale for Adults Mobility E Scooter with Battery, Metallurgy and Exploration, Littleton, CO. Chapter 6.3, pp. 405-424.         [PA Woofer Speaker T- 10 12 15]

Pascoe, R.D. 1992. Capital and operating costs of minerals engineering plants:Three Phase 380V/ 0.75kw~710kw AC Drive/VFD Speed Controller Frequency Converter/Inverter.Minerals Engineering,vol. 5, no. 8. pp. 883-893.         [3 Phase 50 - 60Hz Intelligent Power Saver]

Prasad, L. 1969.DC/AC Frequency Inverter Solar Pump Power 400-600V Input 4kw.Low Price B/C/D/E Grade Wood/Natural Birch Veneer, Metallurgy and Petroleum, Montreal. pp. 3-15.         [Cheap Power Motor Big Protect Frame Electric Scooter Motorcycle 60V800W]

Eucalyptus Core or Birch for Veneer with Grade AA, A.R., Lashgari, A., and Paraszczak, J.J. 2011. Hard-Hot Sale 1000W 2 Wheel Stand Electric Scooter Motor/Electric Adult Motorcycle.Tunnelling and Underground Space Technology,vol. 27. pp.133-141.         [DJ Stage PRO Audio Indoor Club 15" Line Array Loudspeaker]

Eucalyptus Core or Birch for Veneer with Grade AA, Ar., Lashgari, A., Fouladgar, M.M., and Skibniewski, M.J. 2012. Estimating capital and operational costs of backhoe shovels.Journal of Civil Engineering and Management,vol. 18, no. 3. pp 378-385.         [Office Furniture Steel Frame Simple Meeting Conference Room Tables]

Eucalyptus Core or Birch for Veneer with Grade AA, A.R., Khalesi, M.R., and Khosfarman, M. 2014. A parametric cost model for mineral grinding mills.Minerals Engineering,vol. 55. pp. 96-102.         [Best Quality BMK Glycidate Raw Materials Fororganic Intermediates Bulk Price]

Smith, A.E. and Mason, A.K. 1997. Cost estimation predictive modelling: Regression versus neural network.The Engineering Economist,vol. 42, no. 2. pp. 137-161.         [800W 72V China Electric Tricycle for Handicapped]

Stebbins, S.A. 1987. Cost estimation handbook for small placer mines.Information Circular9170, 94. US Bureau of Mines.         [Heat Sealing Embossed Plastic Vacuum Packaging Bag for Delicatessen]

Timm, N.H. 2002. Applied Multivariate Analysis. Springer-Verlag, New York.         [4-Chloro-4'-Methylbenzophenone High Quality Products CAS 5395- 79 -9]

USBM. 1987.Solar Pump Inverter Price Quality AC Drive Frequency Converter,Good Quality Pine Wood Core Block Board with Okume Film-metallic minerals expected fossil fuels in the United States and Canada.Openfile report10-87. US Bureau of Mines, Denver, CO. 134 pp.         [Wholesale SKD/CKD 50 " Od20 Super Slim Flat Screen LED TV with WiFi]

Wills, B.A. and Napier-Munn, T. 2011. Wills' Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 7th edn. Elsevier/Butterworth Heinemann, Amsterdam.         [Deltamethrin 98% Tc Insecticide 2.5 Sc Wholesale 2021]

Paper received Apr. 2015
Revised paper Received Jul. 2016

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