Development of an on-Line Coal Washability Analyzer

Miller, J.D. ; Lin, C.L. ; Luttrell, G.H. ; Adel, G.T. ; Marin, Barbara

University of Utah

关键词: Coal Preparation Plants;    Computerized Tomography;    Particle Size;    Dimensions;    Financing;   

DOI  :  10.2172/823482
RP-ID  :  NONE
RP-ID  :  FG22-96PC96215
RP-ID  :  823482

美国|英语

来源: UNT Digital Library

【 摘 要 】

Washability analysis is the basis for nearly all coal preparation plant separations. Unfortunately, there are no on- line techniques for determining this most fundamental of all coal cleaning information. In light of recent successes at the University of Utah, it now appears possible to determine coal washability on-line through the use of x-ray computed tomography (CT) analysis. The successful development of such a device is critical to the establishment of process control and automated coal blending systems. In this regard, Virginia Tech, Terra Tek Inc., and U.S. coal producers have joined with the University of Utah and to undertake the development of an X-ray CT-based on- line coal washability analyzer with financial assistance from DOE. Each project participant brought special expertise to the project in order to create a new dimension in coal cleaning technology. The project involves development of appropriate software and extensive testing/evaluation of well-characterized coal samples from operating coal preparation plants. Data collected to date suggest that this new technology is capable of serving as a universal analyzer that can not only provide washability analysis, but also particle size distribution analysis, ash analysis, and perhaps pyritic sulfur analysis.