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Device for filling tap hole of arc furnace
Juda, Lukáš ; Brhel, Jaroslav (referee) ; Malášek, Jiří (advisor)
Diploma thesis describes design and function verification of device for filling tap hole of electric arc furnace with tap hole diameter from 190 mm to 250 mm. The theses includes drive design calculation of chute swinging movement and bearing calculations. Another part of the thesis deals with verification of device functions which it is completed with process description of creating DEM simulation in program YADE. The thesis also includes basic experiments for determination angle of internal friction, angle of repose, coefficient of restitution and angle of material friction on a steel surface. Drawing documentation of selected assemblies is part of the thesis.
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Design Optimization of Bucket Conveyors
Jonák, Martin ; Svěrák, Tomáš (referee) ; Zegzulka, Jiří (referee) ; Malášek, Jiří (advisor)
This thesis deals with a study of methods sufficient to describe the behavior of bulk materials (homogeneous and non-homogeneous) during their transport by bucket elevators in the application focused on the optimization of the bucket shape and also on the optimization of operating parameters of whole elevator. More specifically, this thesis is based on the studying and creating analytical and numerical computational models which are used for description of flows and deformations especially of particulate materials. Firstly, the thesis is focused on the process of discharging the bucket – the relationship among the shape of the surface of a particulate material and geometry, position and movement of the bucket. The beginning and way of discharge of the bucket will be determined. Secondly, the thesis includes the overall computational model of a bucket elevator which is based on discrete element method and presented in the case study. The goal is to determine the limits of some classical physical and mathematical descriptions.
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Engineering geological survey evaluation of area affected by lanslides in Budkovice
Prechtlová, Kateřina ; Paseka, Antonín (referee) ; Erbenová, Alexandra (advisor)
This Thesis deals with evaluation of engineer-geological survey of area affected by landslides near Budkovice. The area of interest is situated in the south part of Boskovická brázda on the left bank of the river Rokytná. The Thesis first outlines the problems of slope movements in general: why it’s appropriate to study them, what factors play role in their creation, what areas are prone to their creation, how to proceed with engineer-geological survey and how the slope stability is solved. Next itfocuses on the above mentioned landslide in village Budkovice. Geology and hydrogeology of the area of interest were studied. Carried out survey works were summarized. I became familiar with their results and outputs.Friction angle of the residual strength on the slip plane was calculated using Pettersson’s method, it’s value was 11,27°. Simple geological cuts though the slope area and calculation cut were made. Groundwater level was measured on the preserved drill holes and it was compared with former values.
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Bucket elevator
Vítů, Šimon ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma thesis deals with the calculation and design of bucket elevators. The work includes a description of the construction of elevators, the procedure of elevator calculations. Furthermore, the work presents the calculation of a vertical bucket elevator for gravel transport. The work includes drawing documentation, including a drawing of the elevator assembly, a drawing of the head subassembly, drawings of individual parts of the head.
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Bucket elevator
Vítů, Šimon ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma thesis deals with the calculation and design of bucket elevators. The work includes a description of the construction of elevators, the procedure of elevator calculations. Furthermore, the work presents the calculation of a vertical bucket elevator for gravel transport. The work includes drawing documentation, including a drawing of the elevator assembly, a drawing of the head subassembly, drawings of individual parts of the head.
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Design Optimization of Bucket Conveyors
Jonák, Martin ; Svěrák, Tomáš (referee) ; Zegzulka, Jiří (referee) ; Malášek, Jiří (advisor)
This thesis deals with a study of methods sufficient to describe the behavior of bulk materials (homogeneous and non-homogeneous) during their transport by bucket elevators in the application focused on the optimization of the bucket shape and also on the optimization of operating parameters of whole elevator. More specifically, this thesis is based on the studying and creating analytical and numerical computational models which are used for description of flows and deformations especially of particulate materials. Firstly, the thesis is focused on the process of discharging the bucket – the relationship among the shape of the surface of a particulate material and geometry, position and movement of the bucket. The beginning and way of discharge of the bucket will be determined. Secondly, the thesis includes the overall computational model of a bucket elevator which is based on discrete element method and presented in the case study. The goal is to determine the limits of some classical physical and mathematical descriptions.
|
|
|
Device for filling tap hole of arc furnace
Juda, Lukáš ; Brhel, Jaroslav (referee) ; Malášek, Jiří (advisor)
Diploma thesis describes design and function verification of device for filling tap hole of electric arc furnace with tap hole diameter from 190 mm to 250 mm. The theses includes drive design calculation of chute swinging movement and bearing calculations. Another part of the thesis deals with verification of device functions which it is completed with process description of creating DEM simulation in program YADE. The thesis also includes basic experiments for determination angle of internal friction, angle of repose, coefficient of restitution and angle of material friction on a steel surface. Drawing documentation of selected assemblies is part of the thesis.
|
|
|
Engineering geological survey evaluation of area affected by lanslides in Budkovice
Prechtlová, Kateřina ; Paseka, Antonín (referee) ; Erbenová, Alexandra (advisor)
This Thesis deals with evaluation of engineer-geological survey of area affected by landslides near Budkovice. The area of interest is situated in the south part of Boskovická brázda on the left bank of the river Rokytná. The Thesis first outlines the problems of slope movements in general: why it’s appropriate to study them, what factors play role in their creation, what areas are prone to their creation, how to proceed with engineer-geological survey and how the slope stability is solved. Next itfocuses on the above mentioned landslide in village Budkovice. Geology and hydrogeology of the area of interest were studied. Carried out survey works were summarized. I became familiar with their results and outputs.Friction angle of the residual strength on the slip plane was calculated using Pettersson’s method, it’s value was 11,27°. Simple geological cuts though the slope area and calculation cut were made. Groundwater level was measured on the preserved drill holes and it was compared with former values.
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