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Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details
Gold CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its ore. By cyaniding and carbon leaching crushed gold ore slurry simultaneously, CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99%. View details
Recently, the 125th China Import and Export Fair and Marrakech Mining Convention...
Gold and copper mine was a low-grade gold mine with a total design scale of 4000t/d. It was completed and put into operation in June 2004.
The main metals in the ore were natural gold and chalcopyrite, followed by limonite, pyrrhotite and pyrite. Non-metallic minerals were mainly quartz, sericite, chlorite, plagioclase, biotite and carbonate, which accounted for 35.10%. The useful components in ore were mainly gold, copper was the main symbiotic component, and the associated components included silver, sulfur and others. The grain distribution of natural gold was shown in table 1.
(Table1. Grain Components of natural gold)
The process adopted three-stage one closed-circuit crushing and washing, stage grinding and stage floatation process. According to the change of ore property, different flotation reagents were successively used in the different stage flotation stages: single yellow reagent, ammonium black reagent, yellow reagent and ammonium black reagent. Finally, No. Z-200 was determined.
When adopting stage grinding and stage flotation process, the gold grade remained at 2.2g/t and copper grade was 0.471%. As the lack of resources, the company suffered long-term losses that eventually led to the one-year suspension.
Under the mineral dressing test for the original stage grinding and stage flotation process and production equipment, Xinhai mineral processing institution changed to three-stage closed-circuit crushing, one-stage closed-circuit grinding, one roughing, there scavenging and one cleaning flotation process.
Before the transformation, the grade of gold was 0.9g/t and the grade of copper was 0.322%. Stage grinding and stage separation process didn’t improve too much the recovery rate, and increased the cost greatly. Through the comparison of test data and cost analysis, the new ore beneficiation process can add 721200 yuan of profit every year.
Now, Xinhai has successfully opened its overseas markets and established overseas offices in several countries in just two years by relying on its own system – mineral processing EPC service. ... [more]
Therefore, the development trend of slurry pump definitely will be wear-resistant slurry pump. ... [more]
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© 2017 Shandong Xinhai Mining Technology & Equipment Inc. Technical Support: 北京鑫互联科技有限公司
© 2017 Shandong Xinhai Mining Technology & Equipment Inc.