The above-mentioned condition test results show that the filtration efficiency of the spiral classifier in the treatment of the concave mountain plant is reduced, and the screening efficiency is reduced with the number of revolutions of the impeller, and the screening efficiency is reduced by 25 r/min (0.125 and 0.076 mm, respectively). , the same below) is 78.31% and 82.99%, and when the number of revolutions is 30r/min, the screening efficiency is 77.41% and 81.74%, but when the number of revolutions is 25r/min, there is accumulation on the surface of the impeller. When the ore amount is 45~50t/h, a higher screening efficiency can be obtained. The ore particle size is between -3476mm and the content is between 34% and 38%, and the screening efficiency is high. When the rising water volume is 12t/h, the screening efficiency is 83.09% and 87.53%. As the concentration of the screening slurry increases, the efficiency also increases. The concentration of the sieved slurry can be controlled at about 33 to 35%. [next] Due to the change of the properties of the material to be screened, the pre-demagnetization, impeller rotation number and rising water consumption of the ore were compared. Utility Knife Blades,Knife Blade,Titanium Utility Blades,Single Edge Razor Blades Ningbo Jiangbei Chuangjia Stationery Factory , https://www.nbrazorblades.com
The Ñ„2m vertical cylinder fine sieve was used to screen the overflow product of the spiral classifier in the concave mountain plant. The mass efficiency calculated by 0.125 and 0.076mm was 81.84% and 85.61%, and the mass efficiency was 70.75% and 64.80%.
Malan Zhuang iron ore processing plant using a fine screen in place of a vertical cylinder Ñ„2m plane vibration strike a fine sieve industrial production. Figure 8 shows the original production process (top) and vertical cylinder fine screening process (below).
The pre-demagnetization of the sieving material can increase the sieving efficiency by 7.19%. This is because the sieving material is a coarse concentrate after two magnetic separations, and the pre-demagnetization destroys the magnetic agglomeration and improves the sieving efficiency. The number of revolutions of the impeller is increased, and the particle size of the product under the sieve becomes coarse. When the number of revolutions is 35r/min, the content of -0.076mm in the undersize product is greater than 80%, and a higher screening efficiency is obtained, so the impeller rotation number is selected to be 35r/min. It is appropriate. The rising water consumption test shows that as the amount of rising water increases, the particle size of the undersize product becomes coarser, and its dosage increases from 8t/h to 16t/h. The screening efficiency increases, and continues to increase to 20t/h. The efficiency is declining.
The device in 1985. The cumulative operation 500h Washan beneficiation plant, the same year to 12 months and 4 in Barangay village election plant operation 4869h. According to statistics, the equipment operating rate of 97.52% is mainly the maintenance of the sieve plate; according to the measurement inspection of the sieve plate using 1.5 months, no obvious wear is observed, and it is estimated that the nylon fine sieve plate can be used for more than 6 months. The clogging of the sieve plate is very small, because the sieve material contains less mud, and the sieve plate is completely immersed in the water medium, and the sieve plate is subjected to the agitation of the slurry, and a certain vibration is also caused.