一、前言把氧化煤、煤质疏松且水分很高的煤制成水煤浆,其工艺流程特点是: 1.事先用添加剂总量中的一小部分与煤混合,用辊压机进行预处理; 2.用普通棒磨机或装入钢棒作为研磨介质的振动磨机或两者都用,对再加入一些添加剂之后的辊压机产品研磨到最终粒度。对用这科力法生产的固体浓度为65％(按重量计,以下同)的水煤浆,进行了泵送试验。试验期间,在最初的430h内,水煤浆的粘 First, the preface The coal, loose coal and high moisture coal into coal-water slurry, the process is characterized by: 1. The total amount of additives in advance with a small part of the mixing with coal, with a roller press Treatment; 2. Using ordinary rod mill or vibrating mill with steel rod as grinding media or both, the roller press product after further adding some additives is ground to the final particle size. A pumping experiment was conducted on a CWS produced by this division method at a solids concentration of 65% (by weight, the same applies hereinafter). During the first 430h, the CWS was sticky