Preparation and Transportation Technology of Coal Slurries.

现在大量的煤炭从澳大利亚进口。为了保证能源的稳定和安全供应，必须发展更加先进的煤炭利用技术。近年来，煤浆的制备和利用技术得到了广泛的发展。特别是水煤浆（水煤浆）在现阶段具有实用价值.由于水煤浆可以作为流体燃料通过管道和浆体罐车运输，因此，水煤浆的使用对于降低澳大利亚至日本的煤炭运输成本具有很大的优势。此外，鉴于“环境友好”的特性，该技术具有特别重要的意义。该合作计划的目的如下所述。开发有效的分散剂和稳定剂使用合适的分散剂可以提高煤的浓度，降低水煤浆的粘度，稳定剂是防止水煤浆在运输和储存过程中颗粒沉降的必要添加剂.研究了煤浆制备工艺的发展，煤浆的粉碎和预处理技术的研究对不同煤种的水煤浆的改性具有重要的参考价值.水煤浆的流变学测量和煤浆触变行为的建模悬浮液水煤浆的流变学研究对于了解水煤浆的复杂行为是必要的。在该项目期间，来自山口大学和鹿儿岛大学的日本教授访问了澳大利亚，与澳大利亚同事进行了合作研究。此外，澳大利亚纽卡斯尔、墨尔本、莫纳什和RMIT大学的研究人员在1993年和1994年访问了日本。这项合作研究的结果已在许多期刊和会议论文集上发表了20多篇论文。为解决水煤浆在实际应用中的难题提供了新的思路。

Huge amount of coal is now imported from Australia. For the stable and safe supply of energy, more sophisticated coal utilization techniques should be developed. The preparation and utilization techniques for the coal slurries have been extensively developed in recent years. In particular, the practical use of CWM (Coal Water Mixture) is available at the present stage. The use of CWM has great advantage to reduce the cost for the transportation of coal from Australia to Japan, because CWM can be transported by pipeline and slurry tanker as a fluid fuel. Also, this technology is of particular significance in view of the "environmental friendly" characteristics. The purposes of this collaboration program are described as follows.1. Development of effective dispersing additives and stabilizing additives.The use of suitable dispersing additive can increase in the coal concentration and cause the decrease of CWM viscosity.The stabilizing additive is necessary to prohibit the sedimetation of coal particles during the transportation and storage of CWM.2. Investigation of the process development in the preparation of coal slurries.The studies on the pulverization and pretreatment of coal slurries are valuable for the upgrading the CWMs from various kind of coal.3. Rheological measurements of CWM and modeling the thixsotropic behavior of coal slurries.Rheological study on suspensions CWM is necessary to understand the complex behavior of CWM.During the program, Japanese Professors from Universities of Yamaguchi and Kagoshima visited Australia for collaborative research with Australian colleagues. Also, researchers from Universities of Newcastle, Melbourne, Monash and RMIT in Australia visited Japan during 1993 and 1994. The results of this collaborative research have been published as more than twenty papers in many journals and conference proceedings. New aspect of the CWM technology has been obtained to solve the difficult problems in the practical use of CWM.