Regardless of the old plant selection and the new plant selection, the first step is to use the fine sieve to improve the taste of the concentrate. The necessary conditions for the application of fine sieves are: in the concentrate screening, there is a significant grade difference and a certain yield above and below a certain grade. The difference in taste is the separation point to be selected. The greater the grade difference, the more obvious the effect of applying fine screening.

Angang Dagushan processing plant e.g. magnetic iron ore grade of 35.95% +200 mesh - 200 mesh grade of 67.08%, a large difference in quality, it is suitable for fine screen application, it is the point of separation is based on 200 mesh; Bow The Changling Iron Ore Magnetic Separation Concentrate has a grade of 44.97% with a grade of 200 mesh and a grade of 67.85% with a grade of -200 mesh. The grade difference is also very large, which is suitable for fine screening.

Therefore, the application of fine screening is based on the grade difference of magnetite at a certain level of granularity.

Electric Pressure Cookers

Pressure Cooker is divided into traditional pressure cooker with external heat source and electric pressure cooker. In recent years, the rise of electric pressure cooker has surpassed the popularity of traditional pressure cooker. Advantages of electric pressure cooker: 1. There are ready-made function keys to select. After pressing, don't worry about it. Automatic pressurization, power failure and pressure relief. The function is stupid. 2. It has additional functions such as timing. It is scheduled at night and cooked the next morning. It is convenient for office workers to sleep in. The disadvantage is that the electric pressure cooker contains electronic components, and the failure rate is higher than that of the traditional pressure cooker. In addition to timing, the function of electric pressure cooker can be achieved by traditional pressure cooker. But you need to watch yourself. Brands: mainly domestic brands, Ewong,KingDao, Midea, Jiuyang joyong, Supor, Pentium Povos and other domestic small household appliance brands take electric pressure cooker as their main products, with many models. Prices range from a few hundred dollars to a thousand dollars. The basic functions are the same. The difference is capacity, material, additional functions, etc. Pressure cooker is a high-pressure vessel. Quality problem is very important. Don't buy miscellaneous brands. The above are domestic regular brands with large scale and good reputation. In addition, be careful not to buy aluminum alloy, but stainless steel. Because stainless steel is much stronger, it is safer. In particular, 18 / 10 medical stainless steel is the best. This stainless steel is food safe and has the strongest rust and corrosion resistance

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