OCR Text |
Show 4 Energy Edition, January, 1994 v C t. v 'fZ . T 4. rjV 't, - Typical scenes in todays underground mines include high-tec- h machinery. Manual labor has been replaced by equipment like this longwall miner. Coal mines: (Continued, from Page 3) tively few underground mines, this process involves the use of a continuous mining machine and movable roof supports to shear coal feet wide panels 150-20- 0 and more than half-a-mi- le long. Longwall: Where geology is favorable, an increasing quantity of underground production is the result of longwall mining, one of the most important technological advances to impact the AVAGE coal industry since the intro-ductio- n of mechanized equipment 50 years ago. In this system, two parallel entries are excavated from the main mine entry directly into the coal seam. These entries, which may be as forth across this long seam, cutting and transporting the coal automatically from the face in one smooth operation. The longwall machine much as 750 feet apart or more, are then joined together at the far ends by a crosscut. The coal face that at the crosscut is called the longwall. A rotating shear or plow on a mining machine moves back and is formed has its own movable roof supports. has loads of gratitude for Carbon and Savage Industries, Inc. couldn't ask for a finer "home base" than Carbon and Emery Counties. We appreciate the support we've received from the community and the counties and we're proud to offer all the support we can give in return. But we are especially grateful for our customers and the people, past and present, who have worked with Savage Industries and contributed so much to the coal mining, handling and transportation industry. Thank you, one and all. We look forward to many more prosperous years with you, beginning with a great 1994. INDUSTRIES, INC 1615 E. 1000 S. Price, Ut 84501 FAX |