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煤的焦渣特征是什么
作者:卓越科技 發布日期:2023-02-13 09:28:58

煤炭熱分解(揮發后)以后剩余物質的形狀。根據不同形狀分為8個序號,其序號即為焦渣特征代號。

1;  粉末。全部是粉末,沒有相互粘著的顆粒。

2;  粘著。用手指輕碰即為粉末或基本上是粉末,其中較大的團塊輕輕一碰即成粉末。

3;  弱粘性。用手指輕壓即成不塊。

4;  不熔融粘結。用手指用力壓才裂成小塊,焦渣上表面無光澤,下表面稍有銀白色光澤。

5;  不膨脹熔融粘結。焦渣形成扁平的塊,煤粒的界限不易分清,焦渣上面有明顯的銀白色金屬光澤,下面銀白色光澤更明顯。

6;  微膨脹熔融粘結。用手指壓不碎,焦渣的上下表面均有銀白色金屬光澤,但焦渣表面具有較小的膨脹泡。

7;  膨脹熔融粘結。焦渣的上下表面均有銀白色金屬光澤,明顯膨脹,但高度不超過15mm.

8;  強膨脹熔融粘結。焦渣的上下表面有銀白色金屬光澤,焦渣高度大于15mm.


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