本文選題：G-G恒溫爐 + 煤塵　； 參考：《煤炭技術》2015年08期

【摘要】：為了評價煤塵的著火危險性以及保證安全生產,采用Godbert-Green恒溫爐測試裝置研究粉體分散壓力,磷酸二氫銨與碳酸鈣惰性介質濃度,粒徑對煤塵最低著火溫度的影響。試驗結果表明:對于粒徑45~48μm質量0.3 g的煤塵,分散壓力在0.03 MPa時其著火溫度最低,溫度為584℃。當添加粒徑45~50μm磷酸二氫銨、碳酸鈣以及碳酸鈣與磷酸二氫銨質量比分別為1∶1、1∶2、2∶1的混合粉時煤塵的燃燒得到明顯的抑制,其抑制能力順序依次為磷酸二氫銨混合粉碳酸鈣。惰性介質粒徑為50~250μm、45~50μm、38~45μm、38μm與煤塵混合燃燒,其最低著火溫度隨著粒徑的減小而增大。
[Abstract]:In order to evaluate the ignition risk of coal dust and ensure safe production, the effects of powder dispersion pressure, concentration of ammonium dihydrogen phosphate and calcium carbonate inert medium and particle size on the minimum ignition temperature of coal dust were studied by Godbert-Green constant temperature furnace test device. The experimental results show that the ignition temperature is the lowest when the dispersion pressure is 0.03 MPa, and the ignition temperature is 584 鈩，

本文編號：1937483