Research of design and technological parameters of the volume batcher of continuous action with a cylindrical working body
Students Name: Stefaniuk Nazarii Ivanovych
Qualification Level: magister
Speciality: Food and Processing Industries Equipment
Institute: Institute of Mechanical Engineering and Transport
Mode of Study: full
Academic Year: 2021-2022 н.р.
Language of Defence: ukrainian
Abstract: In the processing and food industries, there is always a need for dosing and mixing bulk media, which are among the most inconvenient for dosing and mixing materials. The physical and mechanical properties of bulk materials are variable over time and unpredictable in the process of mixing mixtures. The inconsistency of the results of studies of dispensers, recommendations for their use, and the variety of designs indicates the complexity of the dosing process of bulk materials, especially in the instability of their physical and mechanical characteristics and dosing in small doses and determines the relevance of research The object of research is the technological process dosing of bulk components and working bodies of the volume dispenser of continuous action with the rotating cylindrical working body without internal devices. The subject of research is the dependence of the quality indicators of the dosing process of bulk components on the design and technological parameters of the volumetric dispenser of continuous action with a rotating cylindrical working body without internal devices. The purpose of the master’s work is to increase the efficiency of dosing bulk materials by improving the design of a volumetric continuous dispenser with a rotating cylindrical working body. In the first section, the existing designs of dispensers of bulk materials are analyzed, their classification is made. The designs of dispensers of different types, their characteristics, and their shortcomings are considered. The necessity of development of the dispenser of bulk materials, volume type of continuous action with the rotating cylindrical working body is substantiated. To achieve the goal of the master’s thesis tasks are set. The second section presents theoretical studies of the process of modeling bulk components. The mathematical dependence of determining the velocity of the medium on the bevel surface of the rotating cylinder, the analytical dependence of the thickness of the rolling layer, the velocity of the medium in the rotating cylinder in the axial direction depends on the velocity of particles along the bevel of the cylinder cross-section. The performance of the dispenser is modeled. In the third section "Experimental researches of the volume dispenser of continuous action with the rotating cylinder" the program and a technique of carrying out and processing of experimental researches results. The scheme of experimental installation is given. The fourth section presents the results of experimental studies. The determination of scale coefficients of similarity of the system "mixture of bulk components - dispenser" is carried out. The obtained large-scale similarity coefficients of the system "mixture of bulk components - dispenser" allow to use of elements of mathematical modeling for simplified research and to determine with sufficient accuracy the design and kinematic parameters of the dispenser. The fifth section presents the method of designing a volumetric dispenser of continuous action with a cylindrical working body. The development of the nomogram for determining the main parameters of the dispenser of continuous action with a cylindrical working body, as well as an example of determining the parameters of the dispenser according to the developed nomogram. The sixth section presents the calculation of the economic evaluation of the project solution. Keywords: dispenser, rotating cylinder, speed, bulk material, productivity, similarity coefficient, correlation equation.