1、真空恒压过滤实验数据P=0.02MP P=0.03MP P=0.04MP高度H/mm时间/s滤液体积V高度H/m时间/s高度H/m时间/s100 0 0.00023 100 0 100 0150 24.9 0.000345 150 13.86 150 12.11200 57.11 0.00046 200 25.06 200 21.89250 92.84 0.000575 250 41.1 250 35.63300 137.33 0.00069 300 61.79 300 51.88350 190.94 0.000805 350 87.57 350 71.09400 250.09 0.00092
2、 400 121.81 400 92.8P=0.02MP/s /q q24.9 4980 0.024572632.21 6442 0.034401735.73 7146 0.044230844.49 8898 0.054059853.61 10722 0.063888959.15 11830 0.0737179方程为t/q=(2/k)*q+(2/k)*q e现在只需找出t/q 和 q 的关系即可P=0.03MP /s /q q13.86 2772 0.024572611.2 2240 0.034401716.04 3208 0.044230820.69 4138 0.054059825.78
3、5156 0.063888934.24 6848 0.0737179P=0.04MP /s /q q12.11 2422 0.02457269.78 1956 0.034401713.74 2748 0.044230816.25 3250 0.054059819.21 3842 0.063888921.71 4342 0.0737179根据所得的直线求得三个压力下的 K 值分别为:0.00113,0.00206,0.00326qe值分别为:0.046,-0.419,0.326K P lgK lgP0.0011329 20000 -2.9458 4.3010.0020581 30000 -2.6865 4.47710.0032634 40000 -2.4863 4.6021由图可得 s=1+0.72=1.72V:0.000115m3测得过滤面积 A 为:0.0117面积 S:0.0023q=(H*S)/A:0.005Vqii2/)(1