The main considerations of the flotation process

Main considerations of the flotation process The whole process of flotation operation is roughly divided into rough selection, sweeping and selection, which are independent and close to the flotation process. The foam products in the selection area and rough selection area are generally sent to the selected area once. Or multiple enrichment selection, the selected foam is the final concentrate product of flotation. Dealing with the medium ore amount scraped in the sweeping area and the tailings product in the selected area has become a key issue that cannot be ignored in the whole flotation process. The control of the medium ore quantity is the focus of the whole flotation operation. In the control of the circulation of the mine, it is clear whether the amount of slurry in the whole flotation process is smooth; whether the foam tank can not run open, whether the foam fluidity is poor or not; whether the slurry level in the flotation tank is Higher scraping of slurry, the second must be judged by experience, whether it is caused by changes in the factors of the upper and lower operations and process conditions. The return of mines in a ship control is 40-80%. During the flotation operation, it is necessary to diligently observe the color of the foam, the thickness of the foam and the change of the sound of the scraped foam. It is also an inspection method for judging whether the ore selectivity and the difference and other process conditions are suitable. Gold River Ni ore sorting process, if the roughing operation the primary viewing real weight of foam, whether thick foam layer, the foam more uniform size whether or not the first groove to the groove is not most, whether the color of the foam thickness change significantly; scrape foam It is better to judge whether the indicator is squeaky in the foam tank. If the foam layer in the rough selection tank is thin, the number of foams is small and large, the change in the color of the foam is not obvious, and the foam in the flotation machine is turned into a slurry, and the foam scraped off from the liquid surface is filled with the slurry into the foam tank to make a sound. The flotation indicator is definitely worse. The observation of the color of the foam in the sweeping area and the selected area mainly determines whether the tailing grade and the concentrate grade are low and high. The color of the last row of foam is generally the best on the surface of the metal, indicating that the mineral separation is well-defined; the dead angle in the flotation cell is a glossy foam, indicating that the flotation agent and other process conditions are properly adjusted, which is beneficial to the tailings. Reduced. It is difficult to judge the high and low grade of the concentrate by the panning method. It is only good to control the foam layer of the selected tank 200-300mm or more. It is strictly forbidden to select the operation to scrape the slurry into the concentrate product. This is conducive to obtaining high-grade concentrate products.

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