一、前言在拜耳法中,原矿浆在预热器及高压溶出器的加热表面上常生成结垢,使传热系数降低,溶出过程的热耗增大,设备的清理及检修费用增加而成为一个被广泛关注的问题。结垢的生成过程受到原矿浆组成和生产条件的影响。生产实践和实验研究表明:加热温度低 I. Introduction In the Bayer process, the raw pulp often generates scale on the heating surfaces of the preheater and the high-pressure dissolver to reduce the heat transfer coefficient, increase the heat consumption during the dissolution process, and increase the cost of equipment cleaning and overhauling A widespread concern. The formation of fouling is affected by the composition of the raw slurry and the production conditions. Production practice and experimental studies have shown that: the heating temperature is low