ÿþ<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>The introduce of Underground Mining and Underground Mining Equipment -- Vipeak Heavy Industry</title> <link href="style/css.css" rel="stylesheet" type="text/css"> </head> <body> <div id="top"> <div id="logo"><img src="/img/logo.gif" width="61" height="67" alt="Vipeak Logo" /></div> <div id="yuyan"><span class="a4 STYLE2">Chinese</span> | English | <img src="/img/yuyan.jpg" width="50" height="12" /> | Fran&ccedil;ais | <img src="/img/yuyan.gif" width="40" height="12" /> | Espa&ntilde;ol | Portugu&ecirc;s </div> <div id="dh"><a href="/index.asp" class="a1">HOME </a> | <a href="/about.html" class="a1">ABOUT US</a> | <a href="/news.asp" class="a1">NEWS & INFO</a> | <a href="/product.html" class="a1">PRODUCTS</a> | <a href="/international.html" class="a1">INTERNATIONAL TRADE</a> | <a href="/honors.html" class="a1">HONORS</a> | <a href="/service.html" class="a1">AFTER-SALES SERVICE</a> | <a href="/contact.html" class="a1">CONTACT</a></div> </div> <div id="xian"><img src="/img/xian.gif" width="885" height="3" /></div> <div id="body2"> <div id="body_right"> <div id="ban"><span class="STYLE1">Zhengzhou Vipeak Heavy Industry Machinery Co.,Ltd</span><br />1983,VIPEAK supplies what you require from stone crushing <br /> machinery, sand making machinery, and grindingmill worldwide. </div> <div id="lj"> <div id="td"><a href="/Team.html" class="a2">Excellent Technical Team</a></div> <div id="bz"><a href="/Guarantee.html" class="a2">Quality Is The Guarantee</a></div> <div id="hz"><a href="/Partner.html" class="a2">To Be Your Satisfied Partner</a></div> </div> <div id="nr5">The introduce of Underground Mining and Underground Mining Equipment</div> <div id="nr4"> <div align="right" class="STYLE4">author:admin&nbsp;&nbsp;&nbsp;&nbsp;</div> </div> <div id="nr4"> <p align="justify"><FONT face=Verdana>&nbsp;&nbsp;&nbsp; Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or (coal) seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock salt and potash.<BR>&nbsp;&nbsp;&nbsp; Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds. In contrast soft rock mining refers to excavation of softer minerals such as salt, coal, or tar sands.<BR>&nbsp;&nbsp;&nbsp; In order for the minerals to be taken out of the mine, the miners make underground rooms to work in. The mining company chooses the best way to get the minerals out. Most mining is done using Continuous mining that uses a continuous mining machine to cut coal from the walls. This means there is less blasting and drilling and puts less miners down in the mines.<BR>&nbsp;&nbsp;&nbsp; Entry into underground mines is by vertical shafts, or by a sloping tunnel, called a 'decline'. Some very large underground mines have both. To extract the ore, the components required to build large pieces of machinery are taken down the shaft and assembled in the area where the miners are working.<BR>&nbsp;&nbsp;&nbsp; One method of underground mining involves blasting hard rock and ore to create large openings in the ground (called 'stopes'). The mined material can be brought to the surface by trucks, or in large containers (called 'skips') that travel up and down the shaft.<BR>&nbsp;&nbsp;&nbsp; Two of the ways that they mine underground are:<BR>&nbsp;&nbsp;&nbsp; Room and pillar mining: This is used in the coal mine we visited. There are intersecting 'rooms' with pillars of coal that hold up the roof. These pillars are mined when the mine, or a part of it, are closing. They are careful when they do this because the roof caves in as they leave.<BR>&nbsp;&nbsp;&nbsp; Longwall mining: Usually a machine called a continuous miner slices layers of coal or minerals from the walls<BR>&nbsp;&nbsp;&nbsp; The mining marketplace is almost totally determined by how effective their mining equipment is. Mining companies rely off their equipment, including large excavating and drilling machines to mine copper, coal, iron, ore, silver, gold, diamonds, phosphate as well as other bedded materials. If their equipment is unreliable, then their operations can fail and end up costing more income in the end. We provide used mining equipment that's superior in quality and durability which is based at inexpensive price points. Our massive amount equipment is utilized within the metallic and non-metallic minerals processing industries.http://www.vipeakgrinder.com <BR></FONT></p> </div> </div> <div id="cp_listz"> <div id="product">PRODUCT LIST </div> <div id="list"><a href="/product.html" class="a1" title="Mill Series"><strong>Mill Series</strong></a> <br /> <a href="/HGM.html" title="HGM Series Micropowder Grinder">HGM Series Micropowder Grinder</a> <br /> <a href="/raymond_mill.html" title="Raymond Mill">Raymond Mill </a><br /> <a href="/straight_centrifugal_grinder.html" title="Straight Centrifugal Grinder">Straight Centrifugal Grinder</a> <br /> <a href="/high_pressure_suspension_grinder.html" title="High Pressure Suspension Grinder">High Pressure Suspension Grinder </a><br /> <a href="/high_pressure_micro_powder_grinder.html" title="High Pressure Micro-powder Grinder">High Pressure Micro-powder Grinder</a> <br /> <a href="/ball_mill.html" title="Ball Mill">Ball Mill </a><br /> <a href="/Crusher.html" class="a1" title="Stone Crushing & Sand Making">Stone Crushing & Sand Making</a> <br /> <a href="/jaw_crusher.html" title="Jaw Crusher">Jaw Crusher </a><br /> <a href="/impact_crusher.html" title="Impact Crusher">Impact Crusher </a><br /> <a href="/hydraulic_cone_crusher.html" title="Hydraulic Cone Crusher">Hydraulic Cone Crusher </a><br /> <a href="/spring_cone_crusher.html" title="Spring Cone Crusher">Spring Cone Crusher </a><br /> <a href="/sand_making_machine.html" title="Sand Making Machine">Sand Making Machine </a><br /> <a href="/hammer_crusher.html" title="Hammer Crusher">Hammer Crusher </a><br /> <a href="/circular_vibrating_screen.html" title="Circular Vibrating Screen">Circular Vibrating Screen </a><br /> <a href="/sand_washing_machine.html" title="Sand Washing Machine">Sand Washing Machine </a><br /> <a href="/belt_conveyer.html" title="Belt Conveyer">Belt Conveyer </a><br /> <a href="/vibrating_feeder.html" title="Vibrating Feeder">Vibrating Feeder </a><br /> <a href="/Production-Line.html" class="a1" title="Production Line Stone">Production Line Stone</a> <a href="/stone_crushing_line.html" title="Crushing & Screening Plants">Crushing & Screening Plants</a><br /> <a href="/sand_making_line.html" title="Sand Making & Washing Plants">Sand Making & Washing Plants </a><br /> <a href="/Fittings.html" class="a1" title="Fittings">Fittings </a><br /> <a href="/drying_machine.html" title="Drying Machine">Drying Machine</a> <br /> <a href="/condensing_machine.html" title="Condensing Machine">Condensing Machine</a> <br /> <a href="/spiral_separator.html" title="Spiral Separator">Spiral Separator </a><br /> <a href="/magnetic_separator.html" title="Magnetic Separator">Magnetic Separator </a><br /> <a href="/flotation_machine.html" title="Flotation Machine">Flotation Machine </a></div> </div> </div> <div id="bottom"> Copyright &reg;&copy; 2008 by Vipeak Heavy Industry Machinery Co., Ltd. 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