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本文介紹的方法是北京地質学院河北地質队太行山十一分队的集体創作,笔者只是资枓的整理者。在野外不具备化驗条件的情況下,用这个方法求磁铁矿的品位含量具有其独特的优点。因为这个方法設备簡单,只要有秤、永久性磁鉄和簡单的矿石碾碎机就行了,不需任何化学藥品。但这个方法只限于磁銖矿方能应用,其他的鉄矿都不能用。这个方法是根据:純磁铁矿含Fe72.4％,当矿石原始重量为Q、磁铁矿石中純磁铁矿的重量百分比为P时,則矿石品位(e)=P×72.4％。具体作法是:秤50克矿石(Q),碾碎成粉末撒在紙上,用薄烟紙将永久性磁铁裹上,在紙面上均匀地移动,等吸上大量矿石粉末后,即将此磁鉄移至另一干净紙上,並将烟紙取下,这样铁矿粉便落在干净紙
The method introduced in this paper is the collective creation of the Taihangshan 11th unit of Hebei Geological College of Beijing Geological College. In the field without laboratory conditions, using this method to find the grade content of magnetite has its unique advantages. Because this method is simple equipment, as long as there are scales, permanent magnet 鉄 and simple ore crusher on the line, without any chemicals. However, this method is limited to magnetic baht mine can be applied, other mine can not be used. This method is based on: pure magnetite containing Fe72.4%, when the original weight of ore is Q, the percentage of pure magnetite in magnetite ore is P, then the grade of ore (e) = P × 72.4%. The specific practice is: scale 50 grams of ore (Q), crushed into powder sprinkled on paper, wrapped with thin paper wrapped permanent magnet, moving evenly on the paper, and so on a lot of ore powder absorption, the magnetic 鉄Move to another clean sheet of paper and remove the paper so that the iron ore powder falls on the clean sheet of paper