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1 <br /> <br />1 <br /> <br /> <br />1 <br />1 <br />1 <br /> <br />1 <br /> <br /> <br />1 <br /> <br />1 <br />1 <br /> <br /> <br />Project: New Castle MSHA Permit Date: 900820 Page: 1 <br />Subject: Design of Slurry System By: AB File: 1145-C <br />Computation: <br />The slurry system may be required to move a maximum of 50,000 tons <br />per year of solids. The design is predicated on the following <br />assumptions and design concepts: <br />Design Basis: <br />Amount of material: <br />Density of slurry: <br />Relative density of solids: <br />Flow velocity: <br />Operating hours: <br />Piping length: <br />Pump station elevation: <br />Elevation of top of room: <br />50,000 <br />2 <br />1.85 <br />10 <br />2,000 <br />3,000 <br />5,725 <br />6,150 <br />tons/yr (max) <br />lb/gallon of water <br />(2/3 rock, 1/3 coal) <br />fps <br />hours/yr <br />feet <br />feet <br />feet <br />Computed system parameters: <br />Density of slurry: <br />Pumping rate: <br />Water rate: <br />Pipe diameter: <br />Head loss: <br />Elevation change: <br />Total pumping head: <br />Total pumping power: <br />68.5 <br />25 <br />417 <br />4 <br />200 <br />425 <br />625 <br />96 <br />lb/cuft (R.D. = 1.098) <br />tons/hr <br />gpm <br />inches <br />feet <br />feet <br />feet <br />hp (75$ efficient pump) <br />Adrian Brovn Consultants, Inc <br /> <br />