Diamond mining equipment and coal screening machine

Digging for Diamonds

Ever wonder where treasure can be found in Arkansas? Crater of Diamonds State Park is the only diamond-producing site in the world where the public can search for diamonds. And the policy here is "finder's keepers." The diamonds you find are yours to keep.

Visitors search atop a 37 1/2-acre plowed field, the eroded surface of an ancient, gem-bearing volcanic pipe. Prospectors enter the field through the Diamond Discovery Center that offers exhibits and an A/V program explaining the three most popular methods of searching for diamonds. The park staff provides free identification and certification of diamonds.

The diamond mining equipment first diamond was found here in 1906 by John Huddleston, the farmer who owned the property at that time. The Crater of Diamonds has changed hands several times over the years and several unsuccessful attempts have been made at commercial mining. All such ventures are shrouded in mystery, and lawsuits, lack of money and fires are among the reasons suspected for these failures. The mine was operated privately, and later as a tourist attraction, from 1952 to 1972. In 1972, the state of Arkansas purchased the Crater of Diamonds for development as a state park. The park is open throughout the year except for New Year's Day, Thanksgiving Day and Christmas Day.

lead ore mining process for the smelter and a small amount of lead sulfide ore concentrates. Smelting of lead fire assay method and wet, the world dominated by fire assay, wet smelting of lead is still in the pilot study stage. Pyro lead smelting basically sintering roasting - blast furnace smelting process, accounting for 85-90% of total production of lead; followed by the reaction of melting, the device can be hearth furnace, short kiln, furnace or oven whirlpool; precipitation melting rarely used. lead mainly fire refining refining, followed by electrolytic refining, but my reasons are not widely used because habits electrolysis.

CME coal screening machine

Derrick designs coal screening machine and manufactures high frequency vibrating machines and screen surfaces used to screen a wide variety of materials and its Stack Sizer has redefined the concept of efficient, fine particle wet screening. It offers high capacity with a minimal amount of floor space. Using as many as five decks operating one above the other, it can be fitted with the company’s urethane screen surfaces for fine coal separation.

“With the Stack Sizer, we have been able to demonstrate to prep plant designers and managers how our technology can offer an improvement over traditional processes,” said Paul Brodzik, product applications manager, Derrick Corp. “It can replace sieve bends or cyclones and perform a similar fine (75 to 100 micron) separation for them.”