油水煤浆是利用神府煤的高热值、低灰分、低价格代替部分燃料油，制备煤、水和燃料油的三元流体燃料。作为一种新型煤基燃料，它具有环境污染小，燃点低，燃烧效率高等优点，可广泛应用在工业锅炉、电站锅炉、工业窑炉上代油、代气燃烧。随着社会发展和环保要求的提高，加快煤炭清洁高效利用的步伐势在必行。本文主要集中于油水煤浆实验研究的以下几个方面： （1）油水煤浆的成浆特性研究。找到了与煤种相适宜的添加剂种类和最佳添加剂用量，分析了制浆方式、料浆成分、粒度分布对表观粘度的影响。结果表明，干湿法结合制浆的方式要优于一般的湿法和干法制浆；随着油含量或煤含量的增加，浆体的表观粘度增大。 （2）油水煤浆的流变性研究。结果表明，油水煤浆属于屈服-假塑性流体，体系中存在屈服应力。利用流变模型对流变曲线进行拟合，油、煤、水混合燃料的流变特性符合Herschel-Bulkley模型。 （3）油水煤浆稳定性的研究。灰渣的加入直接影响油水煤浆的稳定性。灰渣中金属阳离子，虽然使颗粒表面的阴离子电位降低，但也减少了固体颗粒间的斥力作用，使浆体结构化程度增大，从而提高浆体稳定性。当粗细比为13: 1时，油水煤浆在静置6个月后，浆体仍保持均匀。同时利用粒度模型对油水煤浆的稳定性进行了研究，结果表明，粒度分布越宽，浆体的稳定性越好。利用粒度模型进行对粒度分布数据进行理论计算，发现25 μm以上样品的实际粒度分布与模型粒度分布较为接近，在25 μm以下与模型粒度分布差距较大。随着细粉的填充，25 μm以下细粉的含量得到了提高，增大了颗粒之间的摩擦作用力，使得煤颗粒之间的相对滑动变得困难起来，阻止煤颗粒下沉，提高浆体的稳定性。实际的理论分布数据较为接近R-R模型。

Oil-water-coal slurry is a fluent consisted of shenfu coal, water and oil. Besides oil and water, shenfu coal is the primary constituent of the slurry. As a new kind of coal-based fuel, it has many advantages such as protecting environment, high combustion efficiency and low ignition point. Oil-water-coal slurry can be widely utilized as oil in industrial boilers and power plant boilers. With the development of society and high environment standards, it is imperative to speed up the pace of a clean and efficient use for coal. The main contents of this paper can be concluded as the following aspects. Firstly, the slurrying characteristics of the oil-water-coal slurry was studied. A suitable type of additives and the best amount of additives were found. The slurrying technology, slurried ingredient, particle size distribution influent to the apparent viscosity is analyzed. The results showed that the dry and wet slurrying method was superior to any other methods including dry slurrying and wet slurry and it was found that apparent viscosity increased with the content of either coal or oil increased. Secondly, the rheological properties of the oil-water-coal slurry was studied. The results indicated that the oil-water-coal slurry belonged to a yield-pesudo-plastic fluid and yield stress existed. The rheological curve was fitted by rheological model , and the achieved results shows that rheological properties of oil-water-coal slurry coincided with Herschel-Bulkley model. Thirdly, the stability of the oil-water-coal slurry was studied. Ash added directly into the slurry affected the stability of oil-water-coal slurry. Metal positive ions originated from ash made the particle surface potential reduced, but it reduced the repulsion among the solid particles and increased the slurry structured degree. Therefore, the stability of the slurry improved in the presence of the metal positive ions. When the ratio of thick and thin particle was 13: 1, the slurry remained uniform by standing method after 6 months. At the same time, the stability of oil-water-coal slurry was researched utilizing the size models, the results manifested that the stability of the slurry increased with the particle size distribution became wider. Using particle size distribution data model for theoretical calculations, it was found that the actual particle size distribution of the sample above 25μm particle size was closer to the size model, but the content of sample which size was less than 25μm was lower, and it was not suitable for the size mode. As the content of fine powder increased, the content of less than 25μm particle size enhanced, the friction force among the particles increased and for this reason, the relative sliding among the coal particles become difficult, which it prevented the coal particles sinking and improved slurry stability. The actual data of the theoretical distribution is closer to R-R model.