一种固体粉料连续混合机的设计方法及应用  

A DESIGN METHOD FOR PARTICLES CONTINUOUSLY MIXING MACHINE

作　　者：田志鸿[1] 周健[1] 吕庐峰[1] 

机构地区：[1]石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2009年第10期59-62,共4页Petroleum Processing and Petrochemicals

摘　　要：根据固体粉料流动特性与混合设备混合特点,结合粉体在连续混合机内的受力情况和有关粉体力学知识,总结出一套连续混合机各主要工艺参数计算方法,并用该方法对设计的一套应用规模的催化剂连续混合机进行详细工艺计算。计算结果表明,应用规模混合机粉体流动雷诺数与试验装置基本接近,粉体流动状态相似;各相对应部位的粉体质量流率也接近,功率计算结果在常规范围内。当处理量增大10倍时,混合机内最大粉体质量流率低于松散粉料立管的极限流率,表明设计方法可靠。A design method for a particles continuously mixing machine was concluded according to the powder dynamics, the characteristics of solid particles flow and after carefully studying the powder resistance to stirrer and rotating disc in mixer. A set of continuously mixing machine for local catalyst plant was designed based on the above method, and the calculations of key parameters were presented in detail. The results showed that the powder flow pattern in the designed machine was similar to that of in the experimental model;the powder flow Renault numbers in the designed machine and in the experimental model were in the same resistance area; the relative powder mass flow rates in the designed machine were very close to those of in the experimental model. All calculation results including power were within the scope of safety and normal regulations. Even when the throughput of the mixing machine was enlarged 10 times,the maximum powder mass flow rate was still below the critical mass flow rate of FCC catalyst particles in vertical tubes. Thus,the design method was feasible.

关 键 词：固体粉料 混合机 设计方法 应用 

分 类 号：TQ051.9[化学工程]