Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters
To explore a new evaluation method for spontaneous combustion tendency of different areas in sulfide ore heap, ore samples from a pyrite mine in China were taken as experimental materials, and the temperature variations of the measuring points of simulated ore heap were measured. Combined with wavel...
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| Veröffentlicht in: | Journal of Central South University 2017-10, Vol.24 (10), p.2431-2437 |
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| container_title | Journal of Central South University |
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| creator | 潘伟 吴超 李孜军 伍智伟 杨月平 |
| description | To explore a new evaluation method for spontaneous combustion tendency of different areas in sulfide ore heap, ore samples from a pyrite mine in China were taken as experimental materials, and the temperature variations of the measuring points of simulated ore heap were measured. Combined with wavelet transform and nonlinear parameters extraction, a new method for spontaneous combustion tendency of different areas in sulfide ore heap based on nonlinear parameters was proposed and its reliability was verified by field test. The results indicate that temperature field evolution of the simulated ore heap presents significant spatial difference during self-heating process. Area with the maximum increasing extent of temperature in sulfide ore heap changes notably with the proceeding of self-heating reaction. Self-heating of sulfide ore heap is a chaotic evolution process, which means that it is feasible to evaluate spontaneous combustion tendency of different areas by nonlinear analysis method. There is a relatively strong correlation between the maximum Lyapunov exponent and spontaneous combustion tendency with the correlation coefficient of 0.9792. Furthermore, the sort of the maximum Lyapunov exponent is consistent with that of spontaneous combustion tendency. Therefore, spontaneous combustion tendency of different areas in sulfide ore heap can be evaluated by means of the maximum Lyapunov exponent method. |
| doi_str_mv | 10.1007/s11771-017-3654-y |
| format | Article |
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Combined with wavelet transform and nonlinear parameters extraction, a new method for spontaneous combustion tendency of different areas in sulfide ore heap based on nonlinear parameters was proposed and its reliability was verified by field test. The results indicate that temperature field evolution of the simulated ore heap presents significant spatial difference during self-heating process. Area with the maximum increasing extent of temperature in sulfide ore heap changes notably with the proceeding of self-heating reaction. Self-heating of sulfide ore heap is a chaotic evolution process, which means that it is feasible to evaluate spontaneous combustion tendency of different areas by nonlinear analysis method. There is a relatively strong correlation between the maximum Lyapunov exponent and spontaneous combustion tendency with the correlation coefficient of 0.9792. Furthermore, the sort of the maximum Lyapunov exponent is consistent with that of spontaneous combustion tendency. Therefore, spontaneous combustion tendency of different areas in sulfide ore heap can be evaluated by means of the maximum Lyapunov exponent method.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-017-3654-y</identifier><language>eng</language><publisher>Changsha: Central South University</publisher><subject>Chaos theory ; combustion ; Correlation coefficients ; Engineering ; Evolution ; exponent ; Feasibility studies ; heap ; Heating ; Lyapunov ; maximum ; Metallic Materials ; nonlinear ; Nonlinear analysis ; ore ; parameters ; process ; Pyrite ; self-heating ; spontaneous ; Spontaneous combustion ; sulfide ; Temperature distribution ; tendency ; Wavelet transforms</subject><ispartof>Journal of Central South University, 2017-10, Vol.24 (10), p.2431-2437</ispartof><rights>Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2017</rights><rights>Copyright Springer Science & Business Media 2017</rights><rights>Copyright © Wanfang Data Co. 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All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c380t-4113c7d4255a938823d78eb3a481eb83f4b6cf3a773dcc1414f6c1da0d443f4f3</citedby><cites>FETCH-LOGICAL-c380t-4113c7d4255a938823d78eb3a481eb83f4b6cf3a773dcc1414f6c1da0d443f4f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85521A/85521A.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11771-017-3654-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11771-017-3654-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>潘伟;吴超;李孜军;伍智伟;杨月平</creatorcontrib><title>Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><addtitle>Journal of Central South University of Technology</addtitle><description>To explore a new evaluation method for spontaneous combustion tendency of different areas in sulfide ore heap, ore samples from a pyrite mine in China were taken as experimental materials, and the temperature variations of the measuring points of simulated ore heap were measured. Combined with wavelet transform and nonlinear parameters extraction, a new method for spontaneous combustion tendency of different areas in sulfide ore heap based on nonlinear parameters was proposed and its reliability was verified by field test. The results indicate that temperature field evolution of the simulated ore heap presents significant spatial difference during self-heating process. Area with the maximum increasing extent of temperature in sulfide ore heap changes notably with the proceeding of self-heating reaction. Self-heating of sulfide ore heap is a chaotic evolution process, which means that it is feasible to evaluate spontaneous combustion tendency of different areas by nonlinear analysis method. There is a relatively strong correlation between the maximum Lyapunov exponent and spontaneous combustion tendency with the correlation coefficient of 0.9792. Furthermore, the sort of the maximum Lyapunov exponent is consistent with that of spontaneous combustion tendency. Therefore, spontaneous combustion tendency of different areas in sulfide ore heap can be evaluated by means of the maximum Lyapunov exponent method.</description><subject>Chaos theory</subject><subject>combustion</subject><subject>Correlation coefficients</subject><subject>Engineering</subject><subject>Evolution</subject><subject>exponent</subject><subject>Feasibility studies</subject><subject>heap</subject><subject>Heating</subject><subject>Lyapunov</subject><subject>maximum</subject><subject>Metallic Materials</subject><subject>nonlinear</subject><subject>Nonlinear analysis</subject><subject>ore</subject><subject>parameters</subject><subject>process</subject><subject>Pyrite</subject><subject>self-heating</subject><subject>spontaneous</subject><subject>Spontaneous combustion</subject><subject>sulfide</subject><subject>Temperature distribution</subject><subject>tendency</subject><subject>Wavelet transforms</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kc1KxDAURosoKOoDuCu4lGpukjbtUsQ_GHCj65AmNzOVmaQmrVqf3mgHdeUqgXu-74aTLDsBcg6EiIsIIAQUBETBqpIX0052QCkVRUkp20130pQFrZtmPzuOsWsJA1qxqqkOMnn9qtajGjrvcm_z2Hs3KId-jLn2m3aM35MBnUGnp29kXNvOYO4D5itUfd6qiCZPlPNu3TlUIe9VUBscMMSjbM-qdcTj7XmYPd1cP17dFYuH2_ury0WhWU2GggMwLQynZakaVteUGVFjyxSvAduaWd5W2jIlBDNaAwduKw1GEcN5Glp2mJ3NvW_KWeWW8tmPwaWN8sMtJ_P-3kqkSVDyRUWiT2e6D_5lxDj84tBUyU2SB4mCmdLBxxjQyj50GxUmCUR-iZezeJl65Zd4OaUMnTMxsW6J4U_zP6Htc_TKu-VLyv1sEoSQ9FOsAvYJLv6S4g</recordid><startdate>20171001</startdate><enddate>20171001</enddate><creator>潘伟;吴超;李孜军;伍智伟;杨月平</creator><general>Central South University</general><general>Springer Nature B.V</general><general>School of Resources and Safety Engineering, Central South University, Changsha 410083, China%School of Nuclear Resources Engineering, University of South China, Hengyang 421001, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20171001</creationdate><title>Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters</title><author>潘伟;吴超;李孜军;伍智伟;杨月平</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c380t-4113c7d4255a938823d78eb3a481eb83f4b6cf3a773dcc1414f6c1da0d443f4f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Chaos theory</topic><topic>combustion</topic><topic>Correlation coefficients</topic><topic>Engineering</topic><topic>Evolution</topic><topic>exponent</topic><topic>Feasibility studies</topic><topic>heap</topic><topic>Heating</topic><topic>Lyapunov</topic><topic>maximum</topic><topic>Metallic Materials</topic><topic>nonlinear</topic><topic>Nonlinear analysis</topic><topic>ore</topic><topic>parameters</topic><topic>process</topic><topic>Pyrite</topic><topic>self-heating</topic><topic>spontaneous</topic><topic>Spontaneous combustion</topic><topic>sulfide</topic><topic>Temperature distribution</topic><topic>tendency</topic><topic>Wavelet transforms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>潘伟;吴超;李孜军;伍智伟;杨月平</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>潘伟;吴超;李孜军;伍智伟;杨月平</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><addtitle>Journal of Central South University of Technology</addtitle><date>2017-10-01</date><risdate>2017</risdate><volume>24</volume><issue>10</issue><spage>2431</spage><epage>2437</epage><pages>2431-2437</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>To explore a new evaluation method for spontaneous combustion tendency of different areas in sulfide ore heap, ore samples from a pyrite mine in China were taken as experimental materials, and the temperature variations of the measuring points of simulated ore heap were measured. Combined with wavelet transform and nonlinear parameters extraction, a new method for spontaneous combustion tendency of different areas in sulfide ore heap based on nonlinear parameters was proposed and its reliability was verified by field test. The results indicate that temperature field evolution of the simulated ore heap presents significant spatial difference during self-heating process. Area with the maximum increasing extent of temperature in sulfide ore heap changes notably with the proceeding of self-heating reaction. Self-heating of sulfide ore heap is a chaotic evolution process, which means that it is feasible to evaluate spontaneous combustion tendency of different areas by nonlinear analysis method. There is a relatively strong correlation between the maximum Lyapunov exponent and spontaneous combustion tendency with the correlation coefficient of 0.9792. Furthermore, the sort of the maximum Lyapunov exponent is consistent with that of spontaneous combustion tendency. Therefore, spontaneous combustion tendency of different areas in sulfide ore heap can be evaluated by means of the maximum Lyapunov exponent method.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-017-3654-y</doi><tpages>7</tpages></addata></record> |
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| subjects | Chaos theory combustion Correlation coefficients Engineering Evolution exponent Feasibility studies heap Heating Lyapunov maximum Metallic Materials nonlinear Nonlinear analysis ore parameters process Pyrite self-heating spontaneous Spontaneous combustion sulfide Temperature distribution tendency Wavelet transforms |
| title | Evaluation of spontaneous combustion tendency of sulfide ore heap based on nonlinear parameters |
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