scholarly journals Technical solution of the modern conveyor system

2021 ◽  
Vol 1199 (1) ◽  
pp. 012031
Author(s):  
L Jakubovičová ◽  
P Kopas ◽  
M Vaško ◽  
M Handrik
Keyword(s):  
Technical Solution ◽  
Technological Parameters ◽  
Industrial Automation ◽  
Diverse Range ◽  
Conveyor System

Abstract The modern conveyor system finds its place in industrial automation. It offers a full and diverse range of custom conveyor solutions and types. Aluminium profiles offer huge range of different sizes. Conveyors are useful to move materials and smooth transfer along the tracks. Therefore, this paper aimed to designed conveyor system using by aluminium profiles. The aim of the paper is to point out the issue of modularity of our designed conveyor system through design and technological parameters that directly affect its use for the needs of practice. They can be installed almost anywhere, and they transport loads of all shapes, sizes and weights.

scholarly journals TECHNOLOGY, MEANS OF MECHANIZATION AND POWER EQUIPMENT IN AGRICULTURE

2018 ◽  
pp. 3-7 ◽  
Author(s):  
Анатолий Курочкин ◽  
Anatoli Kurochkin
Keyword(s):  
Vacuum Chamber ◽  
Raw Materials ◽  
Volume Flow Rate ◽  
Technical Solution ◽  
Theoretical Studies ◽  
Technological Parameters ◽  
Thermal Vacuum ◽  
Theoretical Substantiation ◽  
Single Screw Extruders ◽  
Vacuum Effect

The purpose of the research is theoretical substantiation of the influence of the thermal vacuum effect for the volume consumption of raw materials in the extruder with vacuum chamber. Theoretical studies of the working process of single screw extruders allowed us to obtain analytical expressions, which can be used to determine the volume flow rate of extruded raw materials serial machine. For extruders using thermal vacuum effect in their work, this theory does not allow to obtain acceptable results, since it does not take into account the fact that the technical solution implemented in the experimental extruder, compared with the serial machine allows to increase the coefficient of explosion of the extrudate in 1,5...2 times. In turn, this significantly affects the volume performance of the extruder and does not allow to determine with the necessary accuracy the structural and technological parameters of the vacuum chamber and its sluice gate. In this regard, in the carried out researches, on the basis of the equation of balance of mass of the processed raw materials which is in a path of the extruder and its vacuum chamber, the coefficient consid-ering influence of thermal vacuum effect on volume consumption of raw materials in the experimental extruder is theoretically proved, and also communication of this coefficient with other significant parameters of process of extrusion is established. The obtained results can be useful for further theoretical studies of extruders with thermal vacuum principle of operation and allow to calculate by analytical methods the main parameters of the vacuum chamber of machines performing thermoplastic extrusion of vegetable raw mate-rials.

scholarly journals Use of innovative technologies of wall covering devices with modular greening systems

Vestnik MGSU ◽  
2021 ◽  
pp. 912-925
Author(s):  
Elena A. Korol ◽  
Natalia S. Shushunova
Keyword(s):  
Comparative Analysis ◽  
Energy Saving ◽  
Systems Analysis ◽  
Environmentally Friendly ◽  
Green Building ◽  
Technical Solution ◽  
Engineering Systems ◽  
Technological Parameters ◽  
Graphic Modeling ◽  
Innovative System

Introduction. The study provides design and technological parameters for wall coverings with various landscaping systems. At present, the problems associated with the study of design and technological parameters in the construction of non-traditional energy-saving engineering systems have not been sufficiently studied. The purpose of the study is to develop new constructive and technological technologies for wall coverings with landscaping systems, which make it possible to systematize various constructive and technological solutions. In accordance with this goal, the following tasks have been formulated: analysis of scientific and technical research of domestic and foreign scientists in the field of green building technologies in relation to the device of wall coverings with landscaping systems; analysis of design and technological parameters for the construction of such coatings. Materials and methods. The study used methods of comparative analysis and methods of graphic modeling. Results. On the basis of the study carried out, an analysis of the design and technological parameters for the installation of wall coverings with various landscaping systems was carried out, and the most environmentally friendly and effective options for vertical gardening systems were identified. Conclusions. Based on the results of the study, it can be concluded that in the field of green building technologies, there is a need to develop new standards that cover the design and construction processes with a detailed description of the design and technical characteristics. On the basis of the analysis of the design and technological parameters for the installation of wall coverings with various greening systems, it was found that, according to the main indicators of the effectiveness of technological solutions, an innovative system of wall coverings with modular greening systems made of bioplastic is the best technical solution.

scholarly journals Research of Energy Technological Parameters in the Processes of Heat Pump Utilization of Heat Exhaust Gases of Rotary Kilns

2021 ◽  
Vol 2(50) ◽  
Author(s):  
Vitaly Petrash ◽  
◽  
Vitaly Baryshev ◽  
Leonid Shevchenko ◽  
Elina Geraskina ◽  
...  
Keyword(s):  
Heat Pump ◽  
Heat Supply ◽  
Building Materials ◽  
Heat Supply System ◽  
Practical Significance ◽  
Technical Solution ◽  
Technological Parameters ◽  
Energy Potential ◽  
Exhaust Gases ◽  
Rotary Kilns

This work is devoted to the study of energy technological parameters of heat pump utilization of exhaust gases heat from rotary kilns in production of building materials for heat technology and industrial heat supply. This goal is achieved due to the proposed new approach to the crea-tion of energy-saving technology and improvement of the heat supply system based on the in-tegration of contact-recuperative and thermal transformer heat recovery. The most important results are as following: a modified dependence of the conversion coefficient, an effective system for removing the waste gas heat for industrial and urban heat supply, a thorough as-sessment of the energy efficiency of the developed system, the dependence of the actual con-version coefficient on the energy technological parameters, as well as a rational degree of the exhaust gases pre-cooling, depending on their initial temperature and ratio of water consump-tion of the systems for technological and household purposes, and the range of their preferred ratio. The relationship between the consumption of the heating and heated medium in the pro-cess of the contact interaction has been substantiated. The results obtained differ from those existing by the complex accounting of the energy technological parameters in the analytical so-lution of the task. The practical significance of the results of the proposed technical solution lies in the fact that they can significantly reduce the consumption of the burned fuel due to a substantial expansion of the energy potential of the recovered heat, reduce heat, dust and gas emissions.

scholarly journals IMPROVING THE ENERGY EFFICIENCY OF A ROTARY KILN FOR CALCINING CARBON-CONTAINING RAW MATERIALS

2020 ◽  
pp. 63-72
Author(s):  
S.V. Leleka ◽  
A.Ya. Karvatskii ◽  
I.O. Mikulionok ◽  
V.M. Vytvytskyi ◽  
O.M. Glukhov ◽  
...  
Keyword(s):  
Natural Gas ◽  
Petroleum Coke ◽  
Rotary Kiln ◽  
Energy Intensity ◽  
Raw Materials ◽  
Ambient Air ◽  
Technical Solution ◽  
Technological Parameters ◽  
Air Supply ◽  
The Cost

An analysis is made of the traditional energy-intensive process of calcining carbon-containing raw materials, in particular petroleum coke, in rotary kilns, which assumes continuous burning of natural gas in these furnaces. A new method for producing calcined petroleum coke is proposed, which minimizes the cost of natural gas as fuel, and therefore reduces the energy intensity of the calcination process and the cost of the obtained calcined coke. In the proposed method, at the beginning of the process, flue gases are obtained by burning natural gas in a rotary kiln, after the calcined coke reaches the required temperature, the consumption of natural gas is reduced or stopped altogether, and the required temperature of the calcined coke is maintained by the corresponding ratio of the flow rate of ambient air and synthetic gas obtained by cooling the material in a rotary kiln or in a cooler drum. To implement the method, a scheme of air supply to the calcination zone of a rotary kiln with the installation of air blowers directly on the casing of a rotary kiln is justified. The fundamental possibility of implementing the proposed method on a rotary kiln diameter 2x40 m with a capacity of 10 t/h for the finished product is shown. In particular, the calculation of its main structural and technological parameters has been performed. Compared with the known method, the proposed technical solution allows to reduce the energy intensity and, accordingly, the cost of the obtained calcined coke. Bibl. 14, Fig. 7.

scholarly journals RESEARCH OF TECHNOLOGICAL PARAMETERS AND CRITERIA FOR EVALUATING DISTILLATE PRODUCTION FROM DRIED JERUSALEM ARTICHOKE

2019 ◽  
pp. 184-195 ◽  
Keyword(s):  
Ethyl Acetate ◽  
Jerusalem Artichoke ◽  
Total Content ◽  
Raw Material ◽  
Volatile Components ◽  
Technical Solution ◽  
Technological Parameters ◽  
Ethyl Caproate ◽  
High Degree

ABSTRACT In this paper, it is proposed to use dried Jerusalem artichoke as a raw material for distillate production. The purpose of the research was to develop a distillate technology from dried Jerusalem artichoke and to determine the criteria for assessing its quality. The work revealed patterns of changes in the concentrations of the main distillate volatile components, depending on the strength of the fermented wort and its composition. It was established that the increase in the strength of fermented wort by 2.0-2.5 %, leads to an increase in the yield of distillate on average by 3.0 % and enriching it with valuable volatile components. A new technical solution was proposed, based on the regulation of the strength of fermented wort from Jerusalem artichoke due to the addition of distillate. A high degree of correlation was established between the tasting evaluation of Jerusalem artichoke distillates and the concentration of 1-propanol, ethyl caproate, ethyl caprylate, the sum of enanthic ethers, the ratio of C3 and C4 alcohols, and was found the ratio of the amount of enanthic ethers to ethyl acetate. It is proposed to use the methanol concentration, the content of enanthic ethers, the total content of carbonyl compounds, the ratio of the sum of enanthic ethers to the concentration of ethyl acetate as criteria for assessing the quality of distillates from dried Jerusalem artichoke

scholarly journals Performance analysis and modernization of a deflection system based on the downhole hammer

2020 ◽  
pp. 5-16
Author(s):  
Viacheslav Neskoromnykh ◽  
◽  
Anton Golovchenko ◽  
Keyword(s):  
Point Of View ◽  
Technical Solution ◽  
Geological Exploration ◽  
Technological Parameters ◽  
Orientation Error ◽  
Rock Destruction ◽  
Deflection System ◽  
The Impact ◽  
Percussion Drilling ◽  
Eccentric Impact

Introduction. The method of rotary-percussion drilling with downhole hammers is widely used in mining and geological exploration and is also one of the most promising due to the high well flow rates combined with the durability and reliability of designs used in method implementation. One of the main constraints for field use is the lack of a commercially available deflection system capable of adjusting the direction of the wells with high mechanical speed without reducing the technological parameters of drilling. Research aim is to analyze the performance and modernize the designs of the deflection system based on the downhole machine from the point of view of increasing the accuracy of hole deviation change, as well as to make a dependence synthesis to determine the intensity of the hole deviation change when implementing the mechanism of rock destruction by eccentric impact pulses. Research methodology. The study is based on a set of methods of basic scientific research, in particular analysis, synthesis, formalization, abstraction. Conclusions. Dependence is given for determining the intensity of the hole deviation change depending on the impact system parameters. The working conditions of the hammer with a displaced center of gravity in the design of the deflection system are investigated, an empirical dependence is given for determining the magnitude of the orientation error, and recommendations are given for its reduction. The area of possible application of the presented technical solution is analyzed.

scholarly journals Flour Baking Mixes: Optimal Operating Parameters for Vibration Mixers

2021 ◽  
Vol 51 (1) ◽  
pp. 196-208
Author(s):  
Dmitry Borodulin ◽  
Dmitry Sukhorukov ◽  
Olga Musina ◽  
Margarita Shulbaeva ◽  
Tatyana Zorina ◽  
...  
Keyword(s):  
Laboratory Experiments ◽  
Vertical Vibration ◽  
Dilution Method ◽  
Technical Solution ◽  
Technological Parameters ◽  
Optimal Operating ◽  
Healthy Diets ◽  
Flour Production ◽  
Long Storage

Introduction. New long-storage flour baking mixes are a promising direction in the development of healthy diets. The research objective was to identify the rational parameters for using continuous vibration mixers in flour production. Study objects and methods. The study featured wheat flour baking mixes. A correlation analysis helped to build mathematical models of the mixing process in vibration mixers using the sequential dilution method. By comparing the smoothing ability of several mixers, the authors identified their feasibility. The research included two full-factor laboratory experiments. Results and discussion. The paper gives a brief review of modern mixing equipment and describes the effect of uneven feeding of bulk materials on the quality of the finished mixes. The vertical vibration mixers proved to be an optimal technical solution. The experiment featured the effect of the amplitude A (m), vibration frequency f (Hz), vibration angle β (°), and the height of the vibrofluidized bed on the process. Conclusion. The research revealed the following optimal technological parameters: A = 0.0046 m, f = 33.48 Hz, the share of food salt = 0.05. Continuous vibration mixers provided uniform high-quality baking mixes.

Functional amyloid: widespread in Nature, diverse in purpose

2014 ◽  
Vol 56 ◽  
pp. 207-219 ◽  
Author(s):  
Chi L.L. Pham ◽  
Ann H. Kwan ◽  
Margaret Sunde
Keyword(s):  
Spider Silk ◽  
Epigenetic Inheritance ◽  
Fibrillar Structure ◽  
Cytoplasmic Polyadenylation ◽  
Functional Amyloid ◽  
Interacting Protein ◽  
Diverse Range ◽  
Element Binding Protein ◽  
Functional Amyloids ◽  
Micro Organisms

Amyloids are insoluble fibrillar protein deposits with an underlying cross-β structure initially discovered in the context of human diseases. However, it is now clear that the same fibrillar structure is used by many organisms, from bacteria to humans, in order to achieve a diverse range of biological functions. These functions include structure and protection (e.g. curli and chorion proteins, and insect and spider silk proteins), aiding interface transitions and cell–cell recognition (e.g. chaplins, rodlins and hydrophobins), protein control and storage (e.g. Microcin E492, modulins and PMEL), and epigenetic inheritance and memory [e.g. Sup35, Ure2p, HET-s and CPEB (cytoplasmic polyadenylation element-binding protein)]. As more examples of functional amyloid come to light, the list of roles associated with functional amyloids has continued to expand. More recently, amyloids have also been implicated in signal transduction [e.g. RIP1/RIP3 (receptor-interacting protein)] and perhaps in host defence [e.g. aDrs (anionic dermaseptin) peptide]. The present chapter discusses in detail functional amyloids that are used in Nature by micro-organisms, non-mammalian animals and mammals, including the biological roles that they play, their molecular composition and how they assemble, as well as the coping strategies that organisms have evolved to avoid the potential toxicity of functional amyloid.

Diverse Range

1972 ◽  
Vol 17 (4) ◽  
pp. 213-214
Author(s):  
WILLIAM F. BATTIG
Keyword(s):  
Diverse Range
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