Major Mineral Processing Equipment Costs and Preliminary Capital Cost Estimations

摘要

Estimating the cost of major equipment is unnecessary when a firm price has been established by the manufacturer/supplier. However, estimating prices of equipment is important for a number of reasons discussed herein, where Cost Indices are employed to adjust from any historical base to current or future values. Capital Cost estimates, depending upon required accuracy, are grouped into three classes by the American National Standards Institute (ANSI Standard Z94.2), although five major types of fixed capital cost estimates have been recognized by the AACE in past years. Estimation via order of magnitude methods (Type 1 or Class Ⅰ) and factored or ratio methods which rely on major equipment costs and some prior information (Type 2 grading between Class Ⅰ and Ⅱ) provide rapid preliminary estimates and are discussed in some detail. Feasibility estimates (Class Ⅱ with up to 40 percent or more of engineering completed and Class Ⅲ) are discussed in another chapter (Scott and Johnston, 2002) of the Financial and Feasibility Studies section of this volume.