The Study On Power Coal Quality Standard In China

For a long time, since there is no uniform power coal quality standard, the coal market trading efficiency is low. The poor quality coal is rampant, causing quality disputes frequently. And the standard management is difficult. Development and changes in coal consumer market have contributed to uniform power coal quality standard.This paper expounds the concept, purpose of power coal quality and classification and significance of the standard definition. Based on the analysis of China’s current coal quality standards on the proposed, it presents problems of the current standards, and clears the importance of developing standardized coal quality standards. Secondly, based on analysis of the current power coal market consumption, trade situation and existing problems, key evaluation indicators of power coal are determined. Thirdly, in accordance with power coal quality standards framework, China’s power coal quality standard system and naming draft are formulated by expert investigation and cluster analysis. Finally, we summarize the research and innovation illustrate the limitations of research presence, combined with previous studies propose future research directions.Conclusions of this study can provide reference for the relevant government departments and strengthening coal quality management and promote clean coal utilization, and improve the efficiency of coal market transaction, which have important practical significance.The total article is divided into seven parts on the arrangement of chapters. The specific content is as follows:Chapter 1: Introduction. Specifically addressed the coal-related concepts as well as the main purpose, from the current coal market developments and changes in the market environment, illustrates the need to develop uniform standards of quality steam coal, coal quality standard outlines the development background and significance, the pair related research at home and abroad on the basis of combing, organize ideas and methods of the study and expounds to regulate market transactions, and promote the use and future development of clean sense of quality standards.Chapter 2: Overview of power coal standards. We expounded the definition, classification and significance of standards, collected the current domestic relevant standards from the view of power coal quality and analyzed the existing problems. The main contents of the standard overview, find the current standards of domestic coal and based on the analysis of the first national standards exist coal shortcomings were discussed. First, the definition of the standard finishing, elaborated standard scientific management, promote trade, improve the quality and to protect the security and the important role of government macroeconomic regulation for. Secondly, collate and analyze the current standards of domestic coal. Including coal for power generation standard, general standard coal boiler, living standard coal, building materials, coal standards, standard locomotives and metallurgical coal injection coal standards. Finally, the present study to learn from existing national standards, and through analysis, the shortcomings of the current standard exists, and to deepen, with coal and steam coal in coal as an example reflects the business their own way, is not conducive to coal trading status quo.Chapter 3: Analysis on current situation of power coal circulation. We analyzed the market consumption situation of power coal from the perspective of the power industry, construction industry and other industries, put forward the problems in circulation in the aspects of production, transportation and trade and thus determined the main evaluation indexes. The main content of steam coal market circulation is to analyze the situation, specifically to analyze the situation from the consumer, transaction status and quality indicators circulation examined three aspects. First, the market for steam coal consumption analysis. From thermal coal demand and coal consumption both in terms of overall consumption overview; for the power industry and the construction industry to analyze coal consumption; from both the metallurgical and chemical industries to other sectors consumption were analyzed. Secondly, the distribution of resources, resource distribution, the overall yield, and other key aspects of production situation analysis of the current situation of coal enterprises coal production, from the railway, highway and waterway transport three aspects of the current situation of coal transportation, coal from domestic trade import and export of three aspects of the steam coal trade situation, and the problems of thermal coal coal quality indicators were analyzed.Chapter 4: Process in determining power coal quality standard. We proposed the framework of power coal quality standard, described and organized the collected data and built the power coal quality index information database by using the standardized data. Three kinds of clustering results are obtained by using the bar chart analysis method, the system clustering method and the fast sample clustering method. This chapter describes the framework and technical quality standards for coal research methods were studied and finishing. Firstly, the framework of our coal quality standards. It discusses the development of coal quality standard theoretical basis, from the laws and regulations, relevant standards and regulations in accordance with relevant document discusses, from the systematic, coordinated, applicability, dynamic, innovative aspects discussed the principles formulated last It provides a framework for the development of standards. Secondly, coal producers and users point of view, to characterize the amount of screening quality thermal coal, including receipt of calorific, dry basis total sulfur, dry ash-free basis volatile, ash melting point softening temperature. Third, the process of data collection and analysis are described, including preliminary sorting of data, the processing and the establishment of a unified information database dimension. Finally, the post-processing of data using bar graphs categorized, system clustering and rapid sample cluster of three methods for analysis. Research of this chapter for the development of quality standards for the preparation of thermal coal program provides data, theory and method support.Chapter 5: China’s power coal quality standard system. Based on three kinds of clustering results and expert opinions, China’s power coal quality standard system is established, clearing identification and binning of received calorific, received total sulfur, dry ash free basis volatile and ash melting point. At the same time, naming draft are formulated. Besides, This paper proposes safeguards of power coal quality standards in production link, trade link, and use link. First, the index classification, will receive net calorific grade is divided into 12 stalls, the dried base total sulfur into five stalls, dry ash-free basis volatile divided into three stalls, ash melting of the softening temperature is divided into three stalls. Secondly, in order to facilitate market transactions, proposed naming steam coal. Finally, based on coal naming scheme, respectively, Shenhua Group, China Coal Group, Datong Coal Mine Group named thermal coal, with its original name comparison shows that the new name more unified and standardized, and easy to remember, is conducive to thermal coal circulation trading.Chapter 6: Conclusions and outlook of the study. This chapter explained the findings and outline in this study. Innovations of this research are summarized. Combined with previous studies, we illustrated the limitations of existing studies, and proposed the future research directions.