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首頁 > 公司新聞 > 測定質量分數和細度的取樣與操作中應注意哪些事項
公司新聞
測定質量分數和細度的取樣與操作中應注意哪些事項
2012-09-10IP屬地 火星143

在實際工作中不論是測定礦漿質量分數或是礦漿細度,為了使測定結果具有較高的代表性,在取樣和操作過程中應注意如下事項:
( l )取樣壺要準確標定其壺重和容積,取樣壺每次用后要洗凈、空干,不得在壺內殘留水和礦砂。
( 2 )取樣時壺口要正對礦流,并沿礦橫向全長等速移動樣壺來截取礦漿樣。
( 3 )待取樣壺溢流口剛溢出礦漿便立即停止取樣,以保證取樣的代表性和結果的真實性。
( 4 )稱樣要認真、準確,稱樣用秤要校準零點并保持清潔,每次用后洗凈擦干以免造成誤差。
( 5 )篩分時若固體量多可分批篩分,不得將大量礦漿一次倒入篩上,否則易損壞篩底,篩分也難以進行。
( 6 )濕法篩分要在專用水池(水盆)中進行,篩分要徹底,確保結果可靠性。
( 7 )篩分時不得濺落造成損失,否則應重測。
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