【作者】 李佳；

【导师】 张一敏；

【作者基本信息】 武汉理工大学 ， 环境工程， 2013， 博士

【摘要】 石煤是我国一种重要的优势含钒资源,在我国储量丰富,从石煤中提取钒是获得v205的重要途径。随着石煤提钒行业的发展,先进提钒工艺技术越来越受到高度重视。但是由于缺乏提钒行业评估准则及系统的评估体系,难以对各种提钒工艺及污染防治技术进行最优筛选,无法实现对提钒行业切实可行的监督管理。造成目前国内提钒行业面临资源利用率低,工艺及设备配置参差不齐,以及提钒技术落后、环境污染等问题。因此,为促进石煤提钒行业的有序发展,提升提钒企业的技术管理水平,亟须制定和实施一套科学、合理、有效的生产工艺先进性的评价体系、标准和方法,对石煤提钒行业的整体生产工艺技术进行综合评估,对于促进我国钒资源开发利用的良性发展,有重要的理论和现实意义。本研究利用数据挖掘技术,对基于小样本的石煤提钒行业工艺先进性评价问题进行研究。通过对石煤提钒行业先进工艺及污染治理现有技术的调研分析,构建了提钒行业生产工艺评价路线,制定了生产评价指标体系及标准,并采用数据挖掘技术中的模糊数学法对指标体系及标准的合理性进行了验证。此外,本研究还借助遗传算法对支持向量机模型参数进行了优化,充分利用支持向量机良好的学习性能和潜在的应用价值,并将其成功应用于石煤提钒工艺先进性评价体系。上述研究在我国石煤提钒行业领域尚属首次,为推动建立完整的石煤提钒行业工艺先进性评价体系提供了相关理论支持。论文的主要成果如下：1.对石煤提钒行业生产工艺及污染防治现状进行了系统的分析与总结。在调研基础上系统总结出当前国内石煤提钒行业工艺技术现状、排污节点、特征污染物、污染防治现状,以及工艺技术和污染防治中存在的问题,为先进工艺的评价奠定了基础。2.首次在我国建立了石煤提钒工艺先进性评价指标体系及标准值。基于生命周期系统评价方法,以易操作性、特殊性和兼容性为原则构建了石煤提钒行业先进生产评价指标体系及各项指标标准值;利用模糊数学综合评判法、集成赋权法,验证了所构建的石煤提钒行业先进工艺评价指标体系及其标准值的合理性。3.将数据挖掘技术中的支持向量机、遗传算法引入石煤提钒工艺先进性评价研究领域。根据石煤提钒工艺特点,利用遗传算法(GA)对支持向量机方法(SVM)在核函数及参数选择问题上进行了改进。通过训练样本及测试样本的评价,证明了改进后的支持向量机方法(GA-SVM)可实际应用于石煤提钒行业工艺先进性的评价过程,是一种具有较高实用价值的小样本评价方法。4.制定出石煤提钒行业先进工艺及污染防治技术政策建议。通过AHP/Entroy集成赋权法,分析指标参数对工艺水平影响的重要程度,制定出石煤提钒行业先进工艺及污染防治技术政策建议,为政府、环保部门制定政策及准入条件提供了借鉴。更多还原

【Abstract】 Stone coal is a kind of important and abundant vanadium resources in China, and vanadium extraction from stone coal is a important way of acquiring V2O5.With the development of the vanadium extraction industry, the advanced technology has been attached more and more importance to. But due to the lack of evaluation criteria and systematic evaluation system of vanadium extraction industry, the optimal selection from various vanadium extraction technology and pollution control technology is hard, and it is unable to realize the feasible supervision and management of vanadium extraction industry, all these make the current domestic industry face low resource utilization, uneven process and equipment configuration, backward extraction technology, and environmental pollution problems. Therefore, in order to promote the development of the industry orderly and improve the enterprise management level, it is desiderate to formulate and implement a set of scientific, reasonable and effective evaluation system, standards and method of technological advancement, and comprehensively evaluate the whole production process of v vanadium industry technology, which have important theoretical and realistic significance to promote the benign development of vanadium resources development and utilization in our country.Using data mining technology, this study conducts a research on stone coal vanadium extraction technology advancement evaluation based on small samples. Through analyzing the advanced process in vanadium industry and the existing pollution control technology, this study constructs the route of technological advancement evaluation in vanadium extraction industry, establishes evaluation index system and standard production and verifies the rationality of the index system and standard by using data mining technology in the fuzzy mathematics method. In addition, this study also optimizes the support vector machine (SVM) model parameters with the help of genetic algorithm, makes full use of support vector machine (SVM) good study performance and potential application value, and applies it successfully to stone coal vanadium extraction technology advancement evaluation system. The aforementioned research in the field of vanadium industry in China is doing for the first time and provides relevant theoretical support to promote a complete advancement evaluation system of stone coal vanadium industry technology.The main results of paper are as follows:1. It analysis and summarize the production status of vanadium extraction industry and the situation of pollution prevention. On the basis of research system it sums up the current status of domestic vanadium extraction industry technology, sewage node, characteristics of pollutants, the situation of pollution prevention, control of the status quo of the technology and problems in pollution prevention, which laid a foundation for the evaluation of advanced technology.2. It sets up the evaluation indicator system and standard values of technological advancement of vanadium extraction from stone coal on this basis of using life cycle assessment method with the principles of ease, particularity and compatibility; by the method of comprehensive evaluation in the fuzzy mathematics, the integration weighting method, it verifies the rationality of advanced evaluation indicator system and standard in vanadium extraction industry.3. The data mining technology of support vector machine (SVM) and genetic algorithm is introduced into the research of vanadium extraction from stone coal technology advancement evaluation. According to the characteristics of the established evaluation index system, by using the genetic algorithm (GA) the method of support vector machine (SVM) is improved on the kernel function and parameters selection, and the specific modeling process were determined. Through the evaluation of training samples and testing samples, it proved that the improved support vector machine method (GA-SVM) can be practical applied to the evaluation process of vanadium extraction industry technological advancement, and it is a kind of evaluation method with high practical value of small sample.4. It makes some policy recommendations on advanced technology and pollution control technology in vanadium extraction industry. By AHP/Entroy, it analyzes indicator parameter values to the importance of the importance on the technological level. It gives some policy advice on advanced technology and pollution control technology for government and provides the reference for environmental protection department1s policy making and access requirements.更多还原