Gold mines in the past according to the general size requirements, the choice of the following three processes: A section of open circuit, the maximum size of the ore discharge is 40 ~ 80mm; The second stage opens the road, and the maximum discharge size is 30~40mm; Three sections and one closed circuit, the maximum discharge size is 20~25mm. The uranium mine crushing process is: 743 Sec open mine, a particle size of discharge -40mm; 721 Sec a closed mine, a particle size of discharge -25mm; Three sections 272 a closed plant, a particle size of discharge -17mm. The equipment is selected, generally the first section uses the jaw crusher , the second section uses the standard cone crusher, and the third section uses the short cone cone crusher . The processing capacity of heap leaching in China is relatively small, and the annual processing capacity is only a few in the case of more than 10 million tons, and the vast majority is a 10,000-ton yard. However, the ore particle size is often required to reach -20mm, or even -l0mm. Therefore, in actual research, design, and production, it is often encountered that the investment in the crushing facility is large and the annual processing volume is small, and the granularity requires finer contradiction. For example, a uranium heap leaching field with an ore processing capacity of 10,000 to 50,000 tons and an ore particle size requirement of -10 mm, if the old process and equipment are used, the energy consumption and production scale of the investment and production are extremely disproportionate and seriously affected. The economic benefits of heap leaching. Therefore, depending on the lithology of the ore, it is important to reasonably select the crushing process and equipment. Here are a few successful examples. First, the Shalbrak gold mine heap leaching field, the ore is calcareous sandstone , a section of open circuit, 400 × 600 jaw crusher, ore particle size is -40mm. Second, Shuangwang Gold Mine heap leaching industrial test, the use of two-stage open circuit, the first section of 250 × 400 jaw crusher, the second section of PEX150 × 750 jaw crusher, 85% of the ore particle size of -15mm. (The ore that cannot pass through the 15mm sieve has a flat shape, which is advantageous for heap leaching). The throughput was 12 t/h. The ore is breccia. Third, the Kanggur gold mine heap leaching field, the ore is oxidized quartz vein gold ore, the required particle size is -6mm, so the two-stage one closed-circuit crushing process is adopted, the first stage jaw crusher, the second section selects φ600 superfine Rotary cone crusher. There are many construction tools for epoxy bai floor paint. Roller For Epoxy Floor Paint,Epoxy Floor Coating Tools,Epoxy Floor Paint Roller,Roller For Floor Paint Eternity International Trading Co;Ltd , https://www.e-tygroup.com
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