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<br />~ 1"; <br />r- <br />("'J <br />...-l <br />c.. ) <br /> <br />, , <br />'-. <br /> <br />COlOaO SCHOOL OF MINES RESEARCH '.'TUTE <br /> <br />4 <br /> <br />great appeal. By connecting th~ capsules, the 6 foot spacing between <br /> <br />1l <br />,;) <br />'1t <br />-:;) <br /> <br />capsules, assumed in the design portion of this study, could be reduced to a <br /> <br />foot or less. The increased volumetric efficiency of the pipeline could be <br /> <br />used to transport additional coal at virtually no cost. <br /> <br /> <br />Because of the terrain, pipeline pump stations would be of two kinds. At <br /> <br />several points along the pipeline, pressure input into the system would be <br /> <br />required. This would be accomplished by forcing a single capsule, or a train <br /> <br />of capsules, into a fluid-filled pipe by means of pumping water through the <br /> <br />pipe at high volumes and low pressures. When the capsule is in the pipe, <br /> <br />valves close to isolate the segment from the low pressure side of the system <br /> <br />~ <br />JJ <br />'~ <br />:1;) <br />-~-- <br />.. <br />, <br /> <br />and other valves open to connect the segment to the main pipeline. High <br /> <br />pressure water then forces the capsule out into the pipeline and it joins the <br /> <br />transport flow. This process is repeated to inject a steady stream of <br /> <br />capsules or trains of capsules into the system. <br /> <br />At several places, pipeline pressures become excessive and pressure <br /> <br />must be removed from the system. The same type of system described above <br /> <br />would be used for the purpose, but the sequence of operations would be <br /> <br />reversed to reduce pressure. <br /> <br />A unique situation exists at Rifle where the capsules must pass into the <br /> <br />pipe segment, the water must drain out, and it must be replaced by high <br /> <br />pressure saline water. The same type of pump system would be used at Rifle, <br /> <br />but valving and other mechanisms would be more complex. <br /> <br />Capsule recovery would be by discharge into a large launder. Capsules <br /> <br />would flow down the open channel and would move onto a slack wire conveyor <br /> <br />,"., <br /> <br />belt. The belt would support the capsules to prevent breakage and would <br /> <br />allow the water to drain off. A fresh water spray would remove any residual <br /> <br />salts from the surface of the capsule. <br /> <br />.,,.;- <br />