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煤炭化驗設備第一項煤樣制備的重要意義是什么?

2022-11-03  來自: 華維科力 瀏覽次數:559

煤炭化驗設備第一項煤樣制備的重要意義是什么?


煤樣制備的目的是將大量的大粒度試樣無偏倚地制備成較小質量和較小粒度的分析試驗試樣。

為進行煤炭品質分析而采取的煤樣都比較多,少則數十數百公斤,多則數噸、十幾噸,而化驗所需的試樣只有幾克、幾十克、幾百克。煤炭是一種化學組成和粒度組成都很不均勻的混合物,要將如此大量的煤樣制成少量的其化學和物理特性都代表初始煤樣的試樣,就嚴格按照一定的操作程序對煤樣進行加工處理,否則制成的分析試驗煤樣就失去代表性。其化驗結果就不能準確反映所采煤樣的品質。

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