Challenges And Opportunities In The Iron Ore Crusher
Iron ore crusher The common iron ores are magnetite, hematite, limonite, siderite, pyrite, blue iron ore, etc. If you are in the field and want to start business about iron ore mining, you need a better iron ore crusher to help you! Iron ore crusher can process Iron ore, copper ore, steel slag, pebbles, quartz, granite, basalt, diabase, etc.Apr 16, 2015 Rock Crusher History. History tells us, it was in 1830, the first US patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840, another patent was issued.