电提取离子法工作中的质量检查问题

Quality checking problem at using the electric extraction ionic method

电提取离子法在提取离子时是一个动态过程,提取量不但与提取时间有关,而且与指示电极的位置有关。检查工作量应布置在有电提取离子法异常的地段上,把质量检查和异常检查合并。第一、二次提取的异常明显存在,相对误差在20%以内,是矿致异常;第二次提取量大于第一次几倍或更多,显示有隐伏金矿体存在;第二次提取量比第一次稍大,相对误差大于60%,提取量的数值小于或稍高于背景值,是背景区。2次测定结果的相对误差δ≤45%为合格,一个测区重复测量的合格率大于80%为一级,70%～79%为二级,60%～69%为三级,小于60%为四级。对四级质量的成果应扩大到20%的检查量,若质量仍达不到要求,应在检查量所代表的范围内返工。

Extracting ion by electric extraction ionic method is a dynamic process, the extraction volume relates not only with extraction time but also with location of indicate extraction electrode. The checking work must assign on an abnormal sector of an area, merge the quality checking and abnormal checking. If the 1st and the 2nd extracting abnormal exist obviously, and the relativistic error is within 20%, then the abnormal area is caused by ore. If the 2nd extracting volume is several times of the 1st or more times than the 1st, it indicates there exist buried gold ore bodies. If the 2nd extracting volume larger than that of the 1st only a little, and relativistic error is above 60%, the value of extracting volume is lower or slightly higher than background value, then the area is background area. If the relativistic error of two times measuring result is lower than or equal to 45%, the work is up to standard. If the qualified ratio of duplicative measure in one area is above 80%, it is 1st grade quality result and 70%～79% is the 2nd grade, 60%～69% is the 3rd grade, lower than 60% is the 4th grade. At the 4th grade quality area, the checking volume must expand to 20%, if the quality could not reach requirement yet, the work of the quality checking area must do again from the beginning.