СОВРЕМЕННЫЕ ТЕХНОЛОГИИ МАТЕРИАЛОВ ДЛЯ ЗАЩИТЫ РАБОЧИХ ПОВЕРХНОСТЕЙ ГИДРОЦИКЛОНА ОТ ИЗНОСА

Abstract

The article considers the process of portland cement production by wet process. Portland cement is a hydraulic binder that is produced by cement clinker, gypsum and additives. Calcium silicates are commonly used as additives. Portland cement production consists of following processes: crushing of clinker and gypsum stone; preparation of mineral additives (crushing, drying); grinding of clinker with active mineral additives and gypsum; storage, packaging and shipping the cement to consumer. Since grinding is carried out in a closed cycle, it is necessary to select the classifying equipment. For this purpose, an analysis is made, which reveals that the hydrocyclone is the most multi-purpose and less expensive in operation of classifying equipment. The study of the hydrocyclone design demonstrates a significant drawback in the form of increased wear of the hydrocyclone working surfaces, which has an impact on durability and work efficiency. The degree of wear the hydrocyclone surfaces depends on the nature of the pulp impact and the mechanical characteristics of material of the hydrocyclone working surface. This article is devoted to the study of the most popular and frequently used wear-resistant materials to protect work surfaces from wear.