Authors: A.A. Andryushkov, D.V. Sukhorukov, A.B. Evgrafova, N.V. Tiunova

Title of the article: Application of the drum mixer of the centrifugal type for obtaining dry construction mixtures

Year: 2019, Issue: 2, Pages: 31-37

Branch of knowledge: 05.17.01 Technology of inorganic substances

Index UDK: 621.929.2

DOI: 10.26730/1999-4125-2019-2-31-37

Abstract: The mixing process is present in many branches of technological production: chemical, pharmaceutical, food and many others. Most often batch-type mixers are used in the mixing process. As a rule, they are metal and energy consuming. The disadvantage is relatively low productivity. Therefore, development of the effective equipment is a crucial task for various industries. The article presents a new design of a constant flow drum-type mixer for obtaining dry fine construction mixtures. The paper describes studies on the choice of rational operating pa-rameters for obtaining fine end product. The quality control of the final mixture was carried out using the heterogeneity coefficient; the ferromagnetic powder served as a key component. Using an electronic frequency meter, the concentration was determined at the output of the mixer. Elaborating the results of the study, regression equations were obtained and response surfaces for model mixtures were constructed. Analysing the response surface, we can choose the operating parameters of the constant flow drum-type mixer and give recommendations for further use of the mixer. The obtained results indicate that the developed constant flow drum-type mixer can produce a mixture of good quality while maintaining the recommended operating modes.

Key words: Mixing constant flow mixer drum mixer heterogeneity coefficient dry mixes

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