Why are encouraged to choose the chute? (Technical paste, a must-see) compare several devices with gold, I recommend strongly recommended, sand gold mine should be "fixed agitation chute chute +" configuration, the front-end with a 4m ---- 6m fixed chute, then the series agitation chute, simple equipment, the cost is not high, maintenance is also very small, the effect is very obvious. Installation of a chute agitation, increased cost of about 20,000, usually about 30 days to recover costs, if mine is good, shorter. I strongly oppose the use of a single fixed chute placer gold, it is not only ruined his own, but also spoil the natural resources. A simple example, a Nissan 500 tons of sand in small mines, the day after the recovery of gold 50g fixed chute, chute installation of agitation, increase the rate of more than 10% selected, general average of at least reclaim 5g / day, 5g, though not much, but a months? What year? That is 150 g / month, 1800 g / year, multiplied by 220 yuan / g of gold, then take the average of the actual operating rate of 70% (no gold mine will not be 100% operating rate), who will surprise , 23,000 yuan / month and 28 million / year, a 50-year earn easy loaders, and that a piece of equipment life up to 5-8 years, the average daily electricity and maintenance costs less than 30 yuan. That is the most pessimistic conservative calculations, one day can have more than one gram (300 yuan) harvest. The math, it is clear that the chute is definitely not encouraging non-essential things, (a lot of people think that the series of agitation in the fixed end of the chute the chute, the election is fixed chute waste tailings, is dispensable stuff ). In short, more than 10% of the increase is in the affirmative, can choose how many grams of gold, would depend on the gold mines of gold, and the more the better. Encouraging the use and maintenance of complex chute it? Failure rate of more? Agitation chute maintenance is simple. Can be used alone and fixed chute together, it can be connected to electricity, and the installation of a fixed chute is not much difference. At best, the most difficult is to change the rubber-soled (single 3 ---- 6 months for once, a rubber 100 dollars to get. Double thick changed once a year to two years), two unskilled Workers use four hours. Since encouraging recovery chute so good, why use a fixed chute it? You can use it alone? Because fixed chute concentrate received relatively low, but also in the upstream, most of the gold in the fixed chute, easy to clean every day, while encouraging fine ore chute than the larger (about 200kg), handling more trouble spots and did not necessary to clean up every day (usually 10 days to clean it once) Moreover, the election is not afraid placer long chute, the better it is going to be used in combination. For concentrate treatment, I recommend using our specially developed for gold placer high weir rocking groove. If not, you can use the agitation secondary chute then concentrated by hand or with a shaker shaking election. All artificial hand-shake selected only in the last resort of the pass for it. We then compare the investment costs. To have a fixed chute a little better recoveries, it is necessary to use a long trough. 500 tons of small mines, 0.8 meters wide and 15 meters long to use gold mat slot to use at least 17 m long gold carpet, according to the current market price to 6,000 yuan, the manufacture of such a tank, about to 3000 yuan. Kim felt the longest four months to be completely replaced. Installation angle is generally at least 13 degrees, approximately 3 m drop and this will inevitably raise the slide platform height, increasing the height of the material, but also a corresponding increase in costs (you can estimate it), but also a large enough venue. Install such a chute, need to choose the field, finishing a 16-meter ramp 13 degrees, but also to build a very large slip station, though it is menial work, people who did not experience it is not easy to do, it is a huge amount of work Moreover, slide sets are often want to move, and move along with mine. Every clear slot, three people, an average of 30 minutes. Concentrate of about 0.8 * 15 * 0.02 = 0.25m ?. Agitation chute, length of only 3.5 meters, and the recovery is higher than 15 meters of gold carpet, the mine using a GL-900 can be, and water tank is smaller than the fixed 20% ----- 30% can be normal work, the installation angle can be between 5 and 15 degrees --- choose (see the water determines how much the amount of water, less angle SWATH angle increases), the gap is only two or three centimeters, price 18,000 yuan. Power consumption of 0.3 degrees / hour, converted to diesel generators, only 60 grams / hour fuel consumption, one day there are 1.3 liters of oil is enough. 3 months for a rubber, price 100 yuan. Encouraging the installation of a chute, just four meters long slope on it, easy angle adjustment, with a stone pad click on it, very simple. SD slot only once a person, to 5 --- 10 minutes, concentrate of about 0.03 * 2.5 * 0.9 = 0.07m ?. Circular jig or jig, do not say, scary price, installation exhausted people, sick people to use.