کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6969385 1453019 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on ignition mechanisms of wet granulation sulfur caused by friction
ترجمه فارسی عنوان
مطالعه تجربی بر روی مکانیزم های احتراق گرانروی گرمایشی مرطوب ناشی از اصطکاک
کلمات کلیدی
گرانولیت مرطوب گوگرد، دستگاه اصطکاک گوگرد، ترکیبات آهن سولفید، مکانیزم احتراق اصطکاک،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بهداشت و امنیت شیمی
چکیده انگلیسی
It is common to see fire accidents caused by friction during the storage and transportation of wet granulation sulfur. To study the sulfur ignition mechanism under friction conditions, a new rotating test apparatus is developed to reproduce friction scenes at lab scale. A series of experiments are performed under different normal loads. The SEM-EDS and the XRD were utilized to examine the morphologies and compositions of the tested specimens and the friction products. Experimental results show that these two methods are mostly in agreement with each other. The iron-sulfide compounds are produced and the proportion of iron-sulfide compounds is reduced with normal loads increasing, compared to the total number of the friction products. The facts implied by the integration analysis of friction products with the temperature changes of the near friction surface unveil an underlying mechanism that may explain sulfur ignition by friction in real scenarios. The sulfur ignition may be mainly caused by the spontaneous combustion of iron sulfide compounds produced by friction under low normal load with 200 N. With the increase of normal loads, the resulting iron-sulfide compounds are decreasing and the high temperature from friction heat begins to play a major role in causing fire.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 344, 15 February 2018, Pages 480-489
نویسندگان
, , , , , ,