Salenko Y. Scientific basis of creation of horizontal forced action concrete mixers

Object: the preparation process of concrete mixes in the forced action mixers. Objective: creation of scientific bases for development of the horizontal concrete mixers equipped with powered energy-efficient mixing tools, that allow increasing the preparation effectiveness, reducing energy and metal consumption, and improving the structure of a concrete mix. Methods: it is used continuum mechanics, classical theory of oscillations, methods of physical, mathematical, and computer modeling. Equipment: the K-505 complex, vibration measurement equipment ВИ6-6ТН. Theoretical and practical results: analytical dependences determining basic parameters of the concrete mixers equipped with newly designed powered energy-efficient mixing tools: with variable blade shapes, with raked peripheral blades, rotating mixers, as well as vibropulse driven concrete mixers, vibration mixers, frame oscillating mixers; the principles and methods of creation of these forced action concrete mixers with a loading capacity from 100 to 1,125 liters. Novelty: it is found the regularities of force interaction between the blades of concrete mixers and a concrete mix itself, and generalities to determine the basic parameters of the concrete mixers having mechanical and vibromechanical operating principles. Subject and implementation level: design documentation, methods of calculations and production prototypes of the forced action concrete mixers with a loading capacity from 100 to 1,125 liters. Implementation efficiency: increase of productivity, energy saving, mixes quality enhancement. Field of application: construction machine building, construction engineering.