化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2015年
5期
1996-2002
,共7页
徐森%陈相%谭柳%夏良洪%刘大斌%潘峰
徐森%陳相%譚柳%夏良洪%劉大斌%潘峰
서삼%진상%담류%하량홍%류대빈%반봉
硝酸铵%爆炸%安全%实验验证
硝痠銨%爆炸%安全%實驗驗證
초산안%폭작%안전%실험험증
ammonium nitrate%explosions%safety%experimental validation
为了研究磷酸一铵(MAP)对硝酸铵爆炸性的抑制作用及其影响机理,利用联合国隔板试验和克南试验研究了改性硝酸铵传播爆轰的能力和在封闭条件下对强加热作用的敏感性,同时采用DSC试验研究了改性硝酸铵热分解特性。联合国隔板试验的结果表明:不同混合工艺的改性硝酸铵试验结果一致,当MAP含量达到25%时,试验结果为“?”,即改性硝酸铵将不再具备传播爆轰的能力。克南试验结果表明:当MAP含量达到30%时,改性硝酸铵-1的试验结果为“?”;当MAP含量达到25%时,改性硝酸铵-2的结果为“?”,即样品在封闭条件下对强加热作用不敏感。DSC的结果表明:改性硝酸铵-1的初始热分解温度比工业硝酸铵低,改性硝酸铵-2的初始热分解温度较高,采用机械混合法更有利于提高MAP对硝酸铵的钝化作用。
為瞭研究燐痠一銨(MAP)對硝痠銨爆炸性的抑製作用及其影響機理,利用聯閤國隔闆試驗和剋南試驗研究瞭改性硝痠銨傳播爆轟的能力和在封閉條件下對彊加熱作用的敏感性,同時採用DSC試驗研究瞭改性硝痠銨熱分解特性。聯閤國隔闆試驗的結果錶明:不同混閤工藝的改性硝痠銨試驗結果一緻,噹MAP含量達到25%時,試驗結果為“?”,即改性硝痠銨將不再具備傳播爆轟的能力。剋南試驗結果錶明:噹MAP含量達到30%時,改性硝痠銨-1的試驗結果為“?”;噹MAP含量達到25%時,改性硝痠銨-2的結果為“?”,即樣品在封閉條件下對彊加熱作用不敏感。DSC的結果錶明:改性硝痠銨-1的初始熱分解溫度比工業硝痠銨低,改性硝痠銨-2的初始熱分解溫度較高,採用機械混閤法更有利于提高MAP對硝痠銨的鈍化作用。
위료연구린산일안(MAP)대초산안폭작성적억제작용급기영향궤리,이용연합국격판시험화극남시험연구료개성초산안전파폭굉적능력화재봉폐조건하대강가열작용적민감성,동시채용DSC시험연구료개성초산안열분해특성。연합국격판시험적결과표명:불동혼합공예적개성초산안시험결과일치,당MAP함량체도25%시,시험결과위“?”,즉개성초산안장불재구비전파폭굉적능력。극남시험결과표명:당MAP함량체도30%시,개성초산안-1적시험결과위“?”;당MAP함량체도25%시,개성초산안-2적결과위“?”,즉양품재봉폐조건하대강가열작용불민감。DSC적결과표명:개성초산안-1적초시열분해온도비공업초산안저,개성초산안-2적초시열분해온도교고,채용궤계혼합법경유리우제고MAP대초산안적둔화작용。
Monoammonium phosphate (MAP) was mixed with ammonium nitrate (AN) by the mechanical mixing method (1) and the solution mixing method (2). The UN gap test and Koenen testof UN-Recommendations on the transport of dangerous goods, were used to determine the propagation of detonation and the effect of heating under confinement, and DSC was used to study the thermal decomposition characteristic. The results of UN gap test showed that samples with different mixing methods had the same result. When the MAP content reached 25%, the result was negative,i.e., the modified AN did not propagate detonation. In the Koenen test, when the MAP content in the modified AN -1 and modified AN-2 reached 30% and 25% respectively, the samples were not sensitive to intense heat under test confinement. The results of DSC showed that theTonsetof modified AN -1 was lower than AN, but theTonset of modified AN-2 was higher than AN. The mechanical mixing method could improve the passivation effect of MAP on AN.