The basis for selecting the hydrocyclone is: 1 the volume of slurry required to be treated Q (m3/h); 2 the graded particle size (or the maximum size of the overflow) d (mm). First, the diameter D of the cyclone is determined based on Q and d. Generally, when the overflow is relatively thick and the production capacity is large, a large-sized cyclone is selected, and a small-sized cyclone is used instead. When the required production capacity is large and the overflow is very fine, a small-sized cyclone can be used in parallel to form a cyclone group. Select the diameter D of the cyclone, refer to Table 26. Table 26 Relationship between diameter D of hydrocyclone and production capacity Q and separation particle size d It can be calculated in the following order: d overflow = (0.2 ~ 0.4) D d sink = (0.2 ~ 0.7) d overflow d gives = (0.4 ~ 1.0) d overflow H=(0.7~1.6)D h=(0.5~0.8)H a = 10 ° ~ 45 ° (large values ​​in the classification of coarse particles, small values ​​in fine particles). When selecting the above parameters, combined with the technical specifications listed in the hydrocyclone catalogue, the size of the cyclone is finally determined. Batch Pre-expander With Fluidized Bed Dryer Full Automatic Eps Machine,High Density Expander Machine,Eps Pre Expander Machine,Polystyrene Thermoforming Machine Zhejiang Huasheng Machinery Equipment Co.,Ltd , https://www.hsfoammachine.com Cyclone diameter D (mm) Average production capacity Q (m 3 /h) Overflow maximum particle size d (mm) Remarks 50 1.5 to 3.5 0 ~ 0.050 Feed pressure P=9.8×10 4 Pa 75 2.5 to 7.5 0.010 ~ 0.060 125 7.5 to 15 0.013 to 0.080 150 12 to 20 0.019 to 0.085 200 18 to 30 0.027 ~ 0.124 250 25 to 50 0.032 to 0.125 300 45 to 65 0.037 ~ 0.150 350 60 to 90 0.044 to 0.180 500 90 to 180 0.052 ~ 0.240 700 200 to 400 0.074 ~ 0.340 1000 350 to 600 0.074 ~ 0.400
Secondly, according to the determined cyclone diameter (D), select its structural parameters: overflow pipe diameter (d overflow), grit diameter (d sink), feed caliber (d give), cylinder height (H) , overflow pipe insertion depth (h), cone angle (a)