RESEARCH OF BUILDING MATERIALS

SYSTEM SIMULATION OF TECHNOLOGY OF MINERAL WOOL PRODUCTS

Vestnik MGSU 6/2013
  • Zhukov Alexey Dmitrievich - Moscow State University of Civil Engineering (MGSU) candidate of technical science, professor, Department of Finishing and Insulating Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Smirnova Tatyana Viktorovna - Moscow State University of Civil Engineering (MGSU); ZAO “MineralnayaVata” postgraduate student, Department Finishing and In- sulating Materials, Moscow State University of Civil Engineering (MGSU); ZAO “MineralnayaVata”, 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Erjomenko Alexander Andreevich - Moscow State University of Civil Engineering (MGSU) student, The Institute of Economics, Management and Information Systems in Civil Engineering, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kopylov Nikita Andreevich - Moscow State University of Civil Engineering (MGSU) student, The Institute of Economics, Management and Information Systems in Civil Engineering, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 92-99

Insulation is widely used in constructions of roofs, facades and fire protection. Using of dual-density allows to obtain not only a strong thermal insulation but also has a high operational stability. Product structutre is formed in the stage of mineral wool carpet and fixed during thermal processing. Manufacturing of dual-density products is based on the technological schemes of mineral wool production. Dual density slabs technology require the special complex located in the linear process flow after press unit and heat treatment camera. Units operate on lines Rockwool (in the cities of Zheleznodorozhniy, Vyborg and Elabuga) and are focused on making the roof and facade insulation with combination structure. Studying of factors influencing the production of dual density slabs process is based on a common methodology of technological analysis and methodology. Software system is developed to study processes. The complex provides individual activity of the experimenter and processing of the experimental results with the help of special computer programs developed at MSSU: “JE-STAT-15. Calculations and analysis of the factor space”, “JE-STAT-23.Construction of nonlinear models and solution interpolation and optimization problems”, “GJ-STAT-06.Processing and analytical optimization of the results of the experiment”. The experiment and processing of the results allowed to determine the degree of influence of each factor. Founded is that the greatest influence on the results have the following factors: density, binder content, fiber diameter, fiber length, degree of compaction two layers of carpet. It results in the nomogram for solving problems of interpretation and adaptation, optimization of process parameters.

DOI: 10.22227/1997-0935.2013.6.92-99

References
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Hydraulic resistance of carper of cylindrical shape mineral wool

Vestnik MGSU 4/2015
  • Zhukov Aleksey Dmitrievich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Composite Materials Technology and Applied Chemistry, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Ivanov Kazbek Kazbekovich - Moscow State University of Civil Engineering (MGSU) student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Aristov Denis Ivanovich - Moscow State University of Civil Engineering (MGSU) student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Skiba Aleksey Andreevich - Moscow State University of Civil Engineering (MGSU) student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Sazonova Yuliya Vladimirovna - Moscow State University of Civil Engineering (MGSU) student, Institute of Construction and Architecture, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 96-103

The properties of the mineral wool mat are determined by the mode of heat treatment and properties of the products. The main parameter to assess the properties of highly porous fibrous material is its resistance to the air flow, which can be estimated by the value of the hydraulic resistance. This parameter includes both the characteristics of the mineral fiber (diameter, length, density) characteristics of the system as a whole (total porosity, average density, the content of fibrous inclusions) and gas environment parameters (temperature and speed of its motion through the porous layer). Characteristics of the gaseous medium are technological factors, which influence the material during the heat treatment, and hence optimization of the process parameters. The flow of gas through the perforated wall of the hole determined by characteristics, pressurized inside a rolling pin, and the structural characteristics of the mineral geometrical cylinder and his hydraulic resistance. So, a universal criterion, which measures the mass transfer efficiency and hence the effectiveness of the heat treatment, is a hydraulic resistance cylinder. The study of the processes occurring in the mineral wool carpet, showed that its hydraulic resistance is directly proportional to the surface of fibers per unit bed volume and inversely proportional to the third degree of porosity of the layer. Researches have shown that increasing the degree of perforation increases the uneven distribution. However, if total power increases 1.87 times, because the perforation through the inlet portion perforation of rolling pin was disclosure, substantially uniform distribution was achieved. The investigations led to the following conclusions: the specific surface layer has a linear dependence on its average density; hydraulic resistance of the layer will be greater, when the amount of beads and fibers diameter is smaller. The obtained exact dependence allows calculating the hydraulic resistance to the flow of gas in the cylinder mineral wool. This allows taking into account the parameters of a rolling pin and the intensity of its expiration coolant, optimize its heat treatment parameters, as well as to assess patterns to filter of vapor during operation in the heating cylinder.

DOI: 10.22227/1997-0935.2015.4.96-103

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