博文

目前显示的是标签为“iron ore processing”的博文

Equipments wear in mineral processing operation

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In a mineral processing plant , the activities unavoidably result in wear. And wear costs money.Often lots of money. This is related to the structure of rock, ore or minerals, being crystals normally both hard and abrasive. The wear is especially much more in hard ore such as iron ore processing and gold ore processing plant. Why wear at all? Wear is caused by the normal rock stress forces • Compression (1) • Impaction (2) • Shearing (3) • Attrition (4) in combination with mineral hardness and energy! Wear in operation caused by: 1.Wear by Compression Metals and compression Manganese steel: The first option for compression wear is manganese steel. This alloy has a very special property, being self hardening and self healing when exposed to large amounts of compression and impact energy. Normal standard is a 14% Mn alloy which is first option in most crushing applications. 18 % Mn alloy is a harder but also a more brittle alloy used in applicatio...

Size control in crushing and grinding circuits

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In the beneficiation plant , it is very important to control the grain size in the stage of crushing and grinding. Especially in metal mines such as iron ore processing line and gold mining equipment , grain size control plays a decisive role in the subsequent stage of selection. A few typical granularity control schemes and their characteristics are described below. 1.Crushing circuits - open screening • Screening ahead of a crusher avoids packing • Less wear in the crusher • Higher total capacity • The screening media is “controlling” the product in two dimensions. No “flaky shortcuts”. Fig1. crushing-open screening 2. Crushing circuits-closed screening • The screens are lowering the capacity • Calibration of the product is improved • Better cubical shape • Higher reduction ratio Fig2.crushing-closed screening 3.Grinding circuits-screening • Used for “trapping critical sizes” in AG - SAG circuits (1) • Used for taking ...

Sinonine wins major order for a sliver-lead-zinc beneficiation project in north america

Sinonine has signed a Sliver-Lead-Zinc beneficiation contract with a customer in America, which will be accomplished and contribute to Sinonine's business from 2008 through until 2012. According to the beneficiation test report provided by the customer, the production line is designed, and the reasonable design plan is finally determined after fully communicating with customers. This 500TPD Sliver-Lead-Zinc Beneficiation Production Line adopts three stage crushing with single closed circuit stage process, primary grinding-hydrocyclone classification, selective flotation of lead, and then flotation of zinc, silver concentrate associated in lead concentrate recovered together, adopting a circuit of one rough floatation, one scavenger and two concentrating, after enrichment, filtering and drying concentrate’s water content is below 5%, wetting tailings discharged after enrichment. Sinonine undertakes engineering design and supplies of beneficiation equipments, factory building,...

Sinonine headquartered in nanjing china

Sinonine Heavy Industry today announced that Sinonine has headquartered  in Nanjing China. With the help of Nanjing’s technological and geographic advantage s  Sinonine will carry forward further development and expansion of the market all of China and the world at large. This  also marks Sinonine’s efforts to improve its strategies and its commitment to developing the global market. Sinonine Heavy Industry Nanjing Headquarter is located in Nanjing hi-tech development zone. it is expected to become a world-leading professional mining and construction technology service center in China. It is a multi-function operation base in China including mining and construction technology service center, components maintenance and re-manufacturing center, components storage and supply center and technology training center. Sinonine focus on iron ore processing and other many kinds of ores beneficiation and gold mining equipment . Nanjing is one of the focuses of China’s ef...