煤塵濕潤性實驗研究

煤塵濕潤性實驗研究

郭有為[1,2]

[1]雲南斯派爾礦業有限責任公司,雲南曲靖655500 [2]山東能源棗莊礦業集團有限責任公司,山東棗莊277000

摘　要:

煤塵的濕潤性是煤的一項重要的物理化學性質，它是煤塵粒子與外界空氣所形成的“固-氣”界麵可被新的“固-液”界麵所取代的一種特性;其與煤塵顆粒的化學成分、粒徑、表麵形狀、表麵粗糙度等自身條件以及環境因素有關。粉塵的濕潤性是選擇除塵方式的依據之一。根據GB/T 16913.8-1997方法，選擇4個煤礦煤塵進行不同粒徑煤塵浸潤速度測定，並判斷該煤塵的濕潤性，並比較了水及濕潤劑溶液對煤塵的濕潤性程度，並根據所得的數據分析了煤塵濕潤性的一般規律。

關鍵詞:

煤塵 濕潤性 浸透速度 濕潤劑

分類號:　TD714.1

Experimental Study of the Coal-dust Wettability

Guo You-wei ( 1.Yunnan Sipaier Mining CO.,Ltd, Yunnan Qujing 655500; 2.Shandong Energy Zaozhuang Mining Group CO.,Ltd, Shandong Zaozhuang 277000 )

Abstract:

Coal-dust wettability is one important physicochemical properties, which is the"solid-gas"interface formed by the air outside and the solid particle could be replaced by a new"solid-liquid"interface.What are to affect the characteristic include the chemical composition, particle size, surface shape, surface roughness, other their own conditions and other external environmental factors. The wettability is one of the basis for choosing suitable dedusting way in coalmine. Based on GB/T 16913. 8-1997, 4 different coalmines were chosen for coal-dust wettability test. The experiments include immersion speed test for different particle sized coal-dust;immersion degree of coal-dust affected by water and wetting agent was compared. The normal law of coal-dust immersion was analyzed by the test.

Keyword:

coal-dust;wettability;immersion speed;wetting agent