Application of carbamide method for sintering off-gases cleaning of sulphur dioxide
| العنوان: | Application of carbamide method for sintering off-gases cleaning of sulphur dioxide |
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| المؤلفون: | E. G. Dmitrieva, G. I. Gazaleeva, A. I. Demin |
| المصدر: | Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information. 75:1086-1091 |
| بيانات النشر: | JSC Chermetinformatsia, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Gypsum, Pulp (paper), Metallurgy, Scrubber, chemistry.chemical_element, Sintering, engineering.material, Contamination, Sulfur, chemistry.chemical_compound, chemistry, engineering, Nitrogen oxide, Lime |
| الوصف: | Existing methods of sinter production off-gases cleaning of sulphur dioxide, based on transmission of a part of gases through calcium-containing pulp or injection of lime milk into the off-gases flow in the sprayed scrubber, have some drawbacks. The main of the drawbacks is as follows: a big amount of bi-water gypsum, contaminated by dust of off-gases is formed during the cleaning process. It is known, that nitrogen-containing salts capture very well both Sulphur dioxide and nitrogen oxides, therefore the carbamide and carbamide-ammoniac methods are widely used for industrial emissions cleaning at non-ferrous metallurgy plants and at the energy-generating plants. In 2016-2017 laboratory and industrial studies were accomplished by application of dry carbamide method to decrease Sulphur dioxide emissions during sinter production. A possibility was shown to decrease significantly the Sulphur dioxide emissions. To check a possibility of the method to decrease SO 2 emissions within the sinter off-gases, a series of test sintering was accomplished in the OJSC “Uralmechanobr” laboratory using JSC “EVRAZ ZSMK” sinter. Analysis of data obtained showed, that application of carbamide allow decreasing the SO 2 content in the of-gases by 90-98%. It was determined, that carbamide additives do not effect significantly on strength and metallurgical properties of the finished sinter. The studies showed, that growth of nitrogen oxide emissions in the off-gases is a negative feature of the sintering process under study. |
| تدمد: | 2619-0753 0135-5910 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ffbb6c441f205d5da671345226ba9954 https://doi.org/10.32339/0135-5910-2019-9-1086-1091 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........ffbb6c441f205d5da671345226ba9954 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 26190753 01355910 |
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