After 20 years a large number of heap leach gold mine tailings, 0.5 grams gold tonne. There are quartz gold, quartz oxide ore. Re-stacking, gold mine tailings, cost bottom, eliminating huge mine resource fees, handling mining fees, other license fees, mining and other costs. Example: Re-stacking 5,000 tons of gold mine tailings, average grade 1-2 g / ton, in the mining, crushing, adding 51 tons of lime, spraying for 35 days, leaching rate of 61%, get 3660 grams of gold. The price of gold is 295 yuan per gram, 3660×295=1079700 yuan. (1) Input-output, direct investment in production; (1) 60,000 yuan for crusher , (2) 20-meter 50,000 yuan for belt conveyor, 200,000 yuan for (3)30 production vehicle, (4) Spray equipment 3 10,000 yuan, etc., (5) power generation equipment 100,000 yuan, (6) vehicles, passenger and cargo dual-use vehicles, 8 tons of cars, 220,000 yuan. Other unpredictable expenses are 200,000 yuan. The equipment is used in one cycle. (2) Re-buriing 5,000 tons of gold mine tailings, investing 640,000 yuan, 60 days to collect costs, and winning 190,000 yuan. (3) The economic benefits of the above-mentioned re-dumping gold mine tailings are very objective and profitable. Second, the application of gold ore dressing agent in the drug-free environment Jinhu mention Main features of non-cyanide environmental protection gold selection agent: Non-toxic environmental protection Jinhu gold extracting agent is a major scientific and technological achievement of many years of research and experimental production by our company's experts. It is a low-toxic environmentally-friendly new product that can completely replace highly toxic sodium cyanide. Our company started testing in the gold mine at the end of 2013. The experiment achieved substantial results. High As high iron and high zinc antimony high degree of difficulty in some parts of the larger traditional process with sodium cyanide gold extraction technology is absolutely not made of gold come, our research and development of new technologies and processes non-toxic cyanide product to solve this A difficult problem, non-toxic non-cyanide, high-tech products. (1). Non-toxic environmental protection Jinhu gold extracting agent is a major scientific and technological achievement of many years of research and experimental production by our company's experts. It is a low-toxic environmentally-friendly new product that can completely replace highly toxic sodium cyanide. At the end of 2013, our company began to use in the actual production of gold ore beneficiation. The product performance is good. Compared with sodium cyanide, its price is lower, the leaching rate is higher, the leaching time is faster, and the drug effect is stable. Our company has already started trial production in small batches, and the relevant departments have carried out or are conducting relevant evaluations on the pharmaceuticals. (2) a wide range of applications: production of a noble metal mainly substituted dressing toxic sodium cyanide, silver gold ore applied. At present, the ore dressing agents used in the gold and silver ore dressing in the industry are mainly highly toxic sodium cyanide. Many experiments at home and abroad to replace sodium cyanide have not achieved breakthrough results. The application range of our company's products is: completely replace sodium cyanide as a mineral processing agent for oxidized gold and silver ore. (3). Compliance with environmental emission requirements: The toxicity test results of the product entered the Cining Palace by the relevant authority department. The acute oral toxicity LD50 of the mouse is 50.1mg/kgBW, and the toxicity is lower than that of caustic soda (the caustic soda LD50 is 40mg/kgBW). The tailings discharge test results conducted by relevant departments are in full compliance with environmental emission requirements. Therefore, the product is environmentally friendly, does not affect the ecological environment, and is also conducive to the growth of crops. The sodium cyanide is highly toxic, seriously polluting and destroying the ecological environment, and the state strictly controls its use. At present, some provinces and cities have banned the use of sodium cyanide in gold ore beneficiation. (4). Good use effect: The product can not only replace sodium cyanide, but also has good effect. In recent years, the company has promoted the trial use of this product in the actual production of the mine. The leaching effect of the new gold ore and tailings is better than the use of sodium cyanide. (5). There is a price advantage: according to the production cost of the product, the market price is similar to, or even slightly lower than, sodium cyanide. (6). No similar products: At present, there is no similar product found in domestic and international products for the more stable effect of precious metal beneficiation agent to replace sodium cyanide. The non-toxic environmental protection Jinhu gold extracting agent product is a new product. The company has issued the enterprise standard Q/HSKJ 01-2013 for the implementation of the product in accordance with relevant national regulations. Instructions: The process of the product in the heap leaching production of oxidized gold ore is the same as that of sodium cyanide, which is easy to operate and popularize. In the new ore mine and tailings turnover, add lime to adjust alkalinity (water alkalinity is about 12), the amount of lime is about 10~15 kg per square ore, and the amount of gold-selecting agent is about 0.1~0.2 per side. kg. Use Cases: Gansu Mining Co., Ltd. used this product in the test of heap leaching production of oxidized gold mine, newly opened mining and tailings in the past two years, with stable performance and good effect. Second new mine test point: (1) No. 1 yard: 7100 cubic meters, about 15,000 tons of average grade 0.75 g / ton, dissolved in the spray pool 700 kg of gold. From mining. After 45 days from the mining to the installation of the spraying equipment, spraying for 30 days, 5010 grams of gold, the leaching rate reached 94%. Input and output: Production direct investment (except resource fees) 205,900 yuan, of which 21,000 yuan for sprinkler equipment costs, can be reused. 5010 grams of gold worth 5010 × 295 = 1477950 yuan, the benefits are considerable. (2) No. 2 yard: 3,200 tons of mine, with an average grade of 0.46 g/t. Add 45 tons of lime evenly in the heap, and dissolve 300 kg of gold in the spray pool. From mining, mining to installation of spray equipment for 20 days, spray for 30 days, get 1342 grams of gold, leaching rate of 91%. Input and output: Production direct investment (except resource fees) 92,800 yuan, of which 12,000 yuan is the cost of spraying equipment. 1342 grams of gold, 1342 × 295 = 395,890 yuan. 3. Tailings experimental point: (1) No. 2 tailings mine: 8100 tons of mine, with an average grade of 0.98 g / ton. In the mine, 80 tons of lime was stirred and sprayed for 35 days to obtain 4941 grams of gold, and the leaching rate was 61%. Input and output: Direct investment (excluding resource fees) is 161,100 yuan, of which 26,000 yuan is the cost of spraying equipment. 4941 grams of gold worth 4941 × 295 = 1486695 yuan. (2) No. 4 tailings yard: 8,600 tons of ore with an average grade of 0.96 g/t. Mix 85 tons of lime in the mine, and add 1500 kg of gold in the spray pool to dissolve. It took more than 2 months to share, and the leaching rate of spray for 40 days was 65%, and gold was obtained × 5590 grams. 8600 tons × 5560 grams × 295 yuan (gold price) grams = 1629200 yuan. Trolling Motor Parts, Trolling Motor Accessories, Trolling Motor Reviews, 24 Volt Trolling Motor Wiring Diagram Ningbo Haibo Group Co.,Ltd. , http://www.hbtrollingmotors.com