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Belt conveyor for brown coal
Bezděk, Marek ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The main key in this bachelor thesis is to calculate and design conveyor belt for transport of brown coal for the transport capacity of 140,000 kg per hour and the height difference of 10,5 m and axial distance between the drums at the both ends of 50 m. First part of the work is focused on the main parts of the conveyor belt construction. Then follows the part with the calculation of conveyor belt according to norm ČSN ISO 5048, which is then used for designing of the main parts of the conveyor belt and its dimensions. The thesis is extended by the required technical drawings.
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Down conveyor belt for brown coal
Buyalskiy, Alexandr ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the design of a belt conveyor with negative principle for transport brown coal, with regard to the given parameters, which are given in the assignment to work. The first part of this work includes the purpose and distribution of belt conveyors.Furthermore, the construction and a brief description of the individual parts of the conveyor are dismantled. The computational part illustrating the suggestion of the main parameters of the conveyor according to ČSN ISO 5048.Also the design and safe calculating of tension station are shown. Technical drawings are accompanied to the thesis.
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Adjustable belt conveyor
Drápalík, Martin ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to design a conveyor belt readjustable to transport brown coal according to specific parameters. The introduction is focused on describing and dividing conveyor belts and characterizing their individual parts. The main part of the thesis is a description of selected components and design solutions, a functional computation carried out in accordance with the standard ČSN ISO 5048 and further an analysis of transported material's properties. The drafting documentation is attached to the thesis.
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Adjustable belt conveyor
Drápalík, Martin ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to design a conveyor belt readjustable to transport brown coal according to specific parameters. The introduction is focused on describing and dividing conveyor belts and characterizing their individual parts. The main part of the thesis is a description of selected components and design solutions, a functional computation carried out in accordance with the standard ČSN ISO 5048 and further an analysis of transported material's properties. The drafting documentation is attached to the thesis.
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Stean boiler for sub bituminous coal, steam parametres 235 t/h, 14 MPa, 540°C
Horák, Stanislav ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
The aim of the work is to design a brown coal combustion boiler of 235 t/h output. The work is divided into several parts. First, stechiometric calculations and calculations enthalpy of air and flue gas are performed. It is calculated heat balance of the boiler, the boiler losses and the thermal efficiency of the boiler is determined. After designing the combustion chamber thermal calculation is made. Then, individual heating surfaces are proposed and at the end of the calculations are controlling the overall energy balance of the boiler. For calculation was design documentation added.
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Grate Boiler for Coal and Bagasse Combustion - 200 t/h, 9.3 MPa, 520 °C
Bartůněk, David ; Ryšavý, Milan (referee) ; Skála, Zdeněk (advisor)
The object of the thesis is to design a grate boiler for bagasse and brown coal combustion with a heat output of 160 MW. Calculations of a flue gas stoichiometry are based on known element analyses of each fuel. The crucial part of the thesis includes designs of heat-exchanging surfaces, where the bagasse is considered as the main fuel while the brown coal is the spare one. Overall thermal balance and an actual boiler efficiencies are provided in last chapters. The boiler-outlet flue gas temperature is compared with the dew point temperature at the very end of the thesis. As a part of the thesis there is a design of the boiler attached.
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Fossil fuels use in Czech Republic
Trávníček, Tomáš ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
The aim of the bachelor thesis is to collect facts about fossil fuels and their utilization in the Czech Republic. Firstly, the thesis discusses the fossil fuels and their division in general. The main part of the thesis is focused on mining and utilization of different kinds of fossil fuels in the Czech Republic with the emphasis being put on the brown coal, black coal and the natural gas. The oil and the lignite are briefly dealt with as well. The thesis includes the statistics of the fossil fuels‘ production of the mining companies, the summary of the big energy facilities in the Czech Republic and the mapping of their fuel bases.
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Adjustable belt conveyor - conveyor frame
Huňka, Jan ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the functional calculation of adjustable belt conveyor according to ISO 5048 with the required transport capacity 210 000 kg.h-1, axial distance 260 m and height difference 26 m. It includes analysis of the transported material, which is brown coal, including the list of alternative materials. The thesis also proposes designs of the conveyor frame for the required parameters.
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Adjustable belt conveyor - take up unit
Lang, Roman ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor´s thesis deals about the structural design of take up unit of the adjustable belt conveyor to transport brown coal in surface mines. It also contains functional calculation of the conveyor and analysis of transported material. This thesis also includes the other alternative materials which can be transported by the conveyor.
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Steam boiler with grate firing , burning coal or wood biomas 200 t/ h, 9,3 MPa 520°C
Čech, Jaroslav ; Hudeček, Mirko (referee) ; Skála, Zdeněk (advisor)
The aim of the work is the design of a grate boiler of 200 t . h-1 output, which will burn brown coal or wood chips. The work is divided into several parts. First, stoichiometric calculation and the calculations enthalpy of flue gases and air are performed. After calculating the heat balance and loss of the boiler was counted boiler efficiency. The design of individual heating surfaces is proposed and at the end are controlled the overall heat balance of the boiler. The calculation is supplemented by drawings.
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