Dry tailings discharge tailings dewatering system Model Price high frequency dewatering screen manufacturers

 This article describes the program compare the three rows of dry tailings treatment, mainly for coarse tailings discharge directly into the dry sieve (dewatering shaker), dry exhaust treatment and backwater use, thus avoiding dry tailings discharge in mining industry Processing, large operating costs due to high equipment investment, and unnecessary investment. Text to 3000t / d dry iron tailings discharge, for example, the three rows of dry tailings were advantages and disadvantages of the way, we want to require dry tailings discharge process mining industry help. First, the mining industry, dry tailings discharge process currently existing problems, many mining industry in the national environmental pressures, the need to dry tailings slurry discharge treatment, in response to the national environmental policy, to avoid potential safety problems tailings. And many mining industry mention dry tailings discharge to think the need to invest tens of millions of devices and construction, due to the dry tailings row of large investment, high operating costs, mining industry to make a lot of delays in the implementation process of the dry exhaust. In fact, as long as the understanding of the nature of the tailings, tailings slurry for different size and nature, a reasonable choice of dry exhaust program, you can minimize the investment in equipment, such as the use of dry tailings discharge can reach dry sieve and return row The purpose of the use. Second, the following is a 3000t / d dry iron tailings three rows of program analysis comparing the advantages and disadvantages: No. contrast traditional program improvement program projects a preferred embodiment of a major equipment concentrated pool filter units + 4 + 4 cyclone tail mine dry sieve row 4 + 1 concentrated pool filter units + 2 row tailings dry sieve six two fine granularity applicable to more than 50% -200 mesh to 100 mesh crude accounts for more than 50% thicker than 100 mesh, 50% After more than three rows of dry moisture content 10-22% 10-22% 12-20% 4 power (KW) ≈600 ≈400 ≈90 5 consumable life cloth 1-3 months 1-3 months sieve cloth 7 months or more 6 Investment Amount (million) ≈900 (excluding civil engineering) ≈600 (excluding civil engineering) ≈120 7 production costs (dollars) ≈4.8 / t ≈3.2 / t ≈0.72 / t 8 advantages of directly back water use. First row dry coarse sieve to remove part of the follow-up device that reduces wear, but also reduce the number of devices and the subsequent models; backwater direct use. Small investment; low operating cost; coarse tailings slurry directly backwater use. 9 Disadvantages big time investment, electric power, high operating costs; short consumable life. A one-time investment, electricity power, high operating costs; short consumable life. Suitable for coarse tailings; bottom row after the need to drain before settling backwater use. Third, coarse dry tailings discharge application case and ROI analysis (a) in a case of an iron ore plant in Chengde, is an old-line reconstruction project, 3000t / d of iron ore tailings, 24 hours a day production, tailings concentration of 20%, pulp coarser than 100 mesh size containing about 70%, with a dry exhaust sieve (dewatering shaker) can extract more than 85% after the dry ore, tailings discharge after dry moisture <15% recyclable at the end passing through the settlement, a small portion of the tail slag into the tailings. Dry tailings discharge sieve can save more than 30% of water resources, increase tailings storage capacity more than 30%, and can protect the slurry pump. Backwater return daily processing capacity of tailings (water containing tailings) 15000t / d, dry tailings discharge treated water away 5000 t / d, the remaining 10,000 tons, 50% of the original tailings recycled, according to now recycling 80%, more than 30% recovery, dry tailings discharge of water can be saved: 15000-5000 * (0.8-0.5) = 3000 tons / day, according to the price of water 0.8 yuan / ton, 3000 * 0.8 = 2400 yuan / day, work 300 days a year, 2400 * 300 = 720,000 yuan, 720,000 yuan a year can save water. Return grit dry sand discharge 2550 tons per day, according to 10 yuan per ton profit, working 300 days a year, 2550 * 10 * 300 = 7.65 million yuan, an annual return of 7.65 million yuan grit. The 3000t / d of iron ore tailings discharge dry sieve just invested about 120 million yuan. Tail (b) Case II Shangluo a vanadium mines, 500t / d vanadium tailings, a concentration of 25%, particle size coarser than 100 mesh containing about 70%, with a dry sieve row can be extracted ore than 95% dry, dry after row moisture content less than 20% of slag. After the dry tailings discharge tailings for building materials, tailings resource re-use; underflow can directly utilize backwater, completely without tailings. Backwater return daily processing capacity of tailings (water containing tailings) 2000t / d, dry tailings and water drain away processing 900 t / d, the remaining 1100 tons of water, according to water price 0.8 yuan / ton, 1100 * 0.8 = 880 yuan, 300 days a year of work, 880 * 300 = 264,000 yuan, 264,000 yuan a year can save water. Return grit dry sand discharge 475 tons per day, according to 10 yuan per ton profit, working 300 days a year, 475 * 10 * 300 = 1.425 million yuan, an annual return of 1.425 million yuan grit. 500t / d vanadium tailings discharge dry sieve (dewatering shaker) investment of about $ 500,000. By contrast to the above programs stem row and ROI analysis can be seen, the advantages of using high GFVD clothes dry sieve row are: 1, low investment, low operating cost, high efficiency; 2, automatic production of solid-liquid separation, grit can recycling, re-use liquid backwater, high return on investment; 3, dry row sieve (dewatering shaker) running smoothly, free manual operation, the vulnerability of long life, 24 hours continuous operation. Dry Fly is a sieve for mining industry choose low investment, high return new dry tailings discharge devices.