选矿厂检查分级溢流浓度,通常采用浓度壶进行测定。
具体做法是:
(1)先校正台秤(或粗天平)的点;
(2)检查空浓度壶的重量与体积,是否与所查浓度壶表相;
(3)按照取样规定,用取样勺采分级溢流试样,小心谨慎地将所采样品倒入浓度壶中,在倒入过程中轻轻地摇动取样勺,不使矿浆沉淀,并将勺中矿浆倒入壶中,直到浓度壶溢流口有矿浆流出时为止。待溢流口矿浆停止流动时用食指捂住溢流口,以壶中矿浆流出;
(4)用抹布将浓度壶外壁揩净,在秤盘上进行称重;
(5)根据称得的壶加矿浆总重量,即可在浓度表上查出矿浆浓度。
其他说明
浓度 | 总重量 | 浓度 | 总重量 |
10% | 1345.13 | 37% | 1490.15 |
11% | 1349.87 | 38% | 1496.30 |
12% | 1354.65 | 39% | 1502.51 |
13% | 1359.48 | 40% | 1508.79 |
14% | 1364.34 | 41% | 1515.13 |
15% | 1369.26 | 42% | 1521.54 |
16% | 1374.22 | 43% | 1528.02 |
17% | 1379.22 | 44% | 1534.57 |
18% | 1384.28 | 45% | 1541.18 |
19% | 1389.38 | 46% | 1547.87 |
20% | 1394.53 | 47% | 1554.63 |
21% | 1399.73 | 48% | 1561.47 |
22% | 1404.97 | 49% | 1568.38 |
23% | 1410.27 | 50% | 1575.36 |
25% | 1421.02 | 52% | 1589.57 |
26% | 1426.47 | 53% | 1596.79 |
27% | 1431.98 | 54% | 1604.09 |
28% | 1437.54 | 55% | 1611.48 |
29% | 1443.15 | 56% | 1618.94 |
30% | 1448.83 | 57% | 1626.50 |
31% | 1454.55 | 58% | 1634.14 |
32% | 1460.34 | 59% | 1641.87 |
33% | 1466.18 | 60% | 1649.69 |
34% | 1472.08 | 61% | 1657.61 |
35% | 1478.05 | 62% | 1665.61 |
36% | 1484.07 | 63% | 1673.71 |