The sorting machine is a kind of product that can carry out weight classification and screening of products
Sorting scale is a kind of equipment for weight classification and screening of products. Under the action of pneumatic conveying, the material passes through the closing fan, and the hopper is at the high-speed rotating point on the tray. Under the action of centrifugal force, the material is fully dispersed and enters the buffer ring. During the falling process, the material is heavier in the cross flow of the rotor. Under the influence, after adjusting the ring of the blade, slide to the classifier of the coarse material collector for collection, and then discharge it through the fan. In recent years, China's coal preparation technology has developed rapidly, and a mature separation process based on coarse coal heavy medium cyclone separator and slime flotation has basically been formed. The development trend is that the heavy-medium cyclone is developing towards large-scale development, and the slime flotation is developing towards increasing the selectivity of slime. At present, large-diameter cyclone separators (1.4m in diameter) and flotation towers with higher selectivity with China's independent intellectual property rights have been applied in China's coal preparation industry. However, because the coarse slime (1.6 to 0.3 mm) between the effective lower limit of the heavy medium cyclone separator and the effective upper limit of the flotation tower cannot be effectively separated, the coarse slime (1.6 to 0.3 mm) cannot be effectively separated. ). Reduce the upper limit of the feed size of the large-diameter heavy-medium cyclone separator and the micro-bubble flotation tower. The checkweigher machine manufacturer talks and summarizes: (1) On the basis of comparing various calculation methods of free settlement speed, it is recommended to use the Allen formula to determine the free settlement speed of coarse slime, and discuss the calculation model of interference settlement speed. (2) The interference bed separation test of coarse slime with different particle sizes proves that the interference bed separation technology has a good separation effect on 1.6-0.8mm coarse slime. When the particle size is 1.6 to 0.28 mm wide, the sorting effect becomes worse. (3) The rising water speed is an important operating variable to control the quality and output of clean coal.
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