北京科技大学学报
北京科技大學學報
북경과기대학학보
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
2014年
1期
82-88
,共7页
苗亮亮%陈先中%白真龙%黄月琴%侯庆文%尹怡欣
苗亮亮%陳先中%白真龍%黃月琴%侯慶文%尹怡訢
묘량량%진선중%백진룡%황월금%후경문%윤이흔
高炉%布料%雷达测量%数据融合%插值
高爐%佈料%雷達測量%數據融閤%插值
고로%포료%뢰체측량%수거융합%삽치
blast furnaces%burden%radar measurement%data fusion%interpolation
不采用传统接触力模型自下而上的高炉料面形状计算方法,而是根据土坡力学颗粒物质堆积理论,提出了新的基于堆积法的高炉料线形状融合计算方法,直接对料面形状进行计算.围绕高炉多环布料的炉料堆积特点,结合炉顶六点阵列雷达,获得了料面形状计算的边界条件,弥补了传统料型计算靠十字测温加机械探尺的经验估算.新方法通过高炉布料规律及炉料颗粒的物理堆积插值方法,采用贝叶斯数据融合方法和分段三次Hermite插值,结合布料体积约束条件,完成了理论计算与测量修正的结合.实测结果表明:料面形状融合法比传统单独的料面估算法,测量精度提高4.8%,料面分辨率提高27.2%,使布料控制可以更加精准和有针对性.
不採用傳統接觸力模型自下而上的高爐料麵形狀計算方法,而是根據土坡力學顆粒物質堆積理論,提齣瞭新的基于堆積法的高爐料線形狀融閤計算方法,直接對料麵形狀進行計算.圍繞高爐多環佈料的爐料堆積特點,結閤爐頂六點陣列雷達,穫得瞭料麵形狀計算的邊界條件,瀰補瞭傳統料型計算靠十字測溫加機械探呎的經驗估算.新方法通過高爐佈料規律及爐料顆粒的物理堆積插值方法,採用貝葉斯數據融閤方法和分段三次Hermite插值,結閤佈料體積約束條件,完成瞭理論計算與測量脩正的結閤.實測結果錶明:料麵形狀融閤法比傳統單獨的料麵估算法,測量精度提高4.8%,料麵分辨率提高27.2%,使佈料控製可以更加精準和有針對性.
불채용전통접촉력모형자하이상적고로료면형상계산방법,이시근거토파역학과립물질퇴적이론,제출료신적기우퇴적법적고로료선형상융합계산방법,직접대료면형상진행계산.위요고로다배포료적로료퇴적특점,결합로정륙점진렬뢰체,획득료료면형상계산적변계조건,미보료전통료형계산고십자측온가궤계탐척적경험고산.신방법통과고로포료규률급로료과립적물리퇴적삽치방법,채용패협사수거융합방법화분단삼차Hermite삽치,결합포료체적약속조건,완성료이론계산여측량수정적결합.실측결과표명:료면형상융합법비전통단독적료면고산법,측량정도제고4.8%,료면분변솔제고27.2%,사포료공제가이경가정준화유침대성.
A fusion measuring method proposed in this paper by using the soil mechanical granular accumulation theory is a new concept for computing the burden line shape in blast furnaces. This method offers a powerful solution to compute the burden line shape directly in comparison with the traditional way in which the contact force model is adopted to compute the burden line shape in blast fur-naces from the bottom up. With the multiloop distributing accumulation property of blast furnaces and the advantage of 6-point array ra-dar on the top, the boundary conditions of the burden line shape can be easily calculated. Under the boundary conditions, the esti-mated values gotten by cross temperature and mechanical sounding rods can be compensated. Taking into consideration the distributing discipline of blast furnaces and the particle accumulation method, this method adopts Bayes data fusion and sectional triple Hermite in-terpolation under the boundary conditions to finish the combination of theoretical calculation and measurement correction. Measurement results indicate that compared with the traditional method, the measurement accuracy rises by 4.8% and the resolution of the burden line increases by 27.2%, which make the control of burdening more precise and more targeting.